Periodic movements of animals in response to seasonal changes or reproductive instinct. Hormonal changes are the trigger in at least some animals. Most migrations are made for reasons of climatic change, feeding, or breeding.
An order of BIRDS including over 300 species that primarily inhabit coastal waters, beaches, and marshes. They are comprised of shorebirds, gulls, and terns.
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
Warm-blooded VERTEBRATES possessing FEATHERS and belonging to the class Aves.
Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean).
Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The pattern of any process, or the interrelationship of phenomena, which affects growth or change within a population.
The protection, preservation, restoration, and rational use of all resources in the total environment.
Number of individuals in a population relative to space.
An animal or plant species in danger of extinction. Causes can include human activity, changing climate, or change in predator/prey ratios.
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
Accidents on streets, roads, and highways involving drivers, passengers, pedestrians, or vehicles. Traffic accidents refer to AUTOMOBILES (passenger cars, buses, and trucks), BICYCLING, and MOTORCYCLES but not OFF-ROAD MOTOR VEHICLES; RAILROADS nor snowmobiles.
Individuals with a degree in veterinary medicine that provides them with training and qualifications to treat diseases and injuries of animals.
The medical science concerned with the prevention, diagnosis, and treatment of diseases in animals.
The middle portion of the SMALL INTESTINE, between DUODENUM and ILEUM. It represents about 2/5 of the remaining portion of the small intestine below duodenum.
A publication issued at stated, more or less regular, intervals.
A quantitative measure of the frequency on average with which articles in a journal have been cited in a given period of time.
"The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.
The use of statistical methods in the analysis of a body of literature to reveal the historical development of subject fields and patterns of authorship, publication, and use. Formerly called statistical bibliography. (from The ALA Glossary of Library and Information Science, 1983)
Celestial bodies orbiting around the sun or other stars.
Habitat of hot water naturally heated by underlying geologic processes. Surface hot springs have been used for BALNEOLOGY. Underwater hot springs are called HYDROTHERMAL VENTS.
Discussions, descriptions or catalogs of public displays or items representative of a given subject.
A genus of WHALES in the family Balaenopteridae, consisting of five species: Blue Whale, Bryde's Whale, FIN WHALE, Sei Whale, and MINKE WHALE. They are distinguished by a relatively slender body, a compressed tail stock, and a pointed snout.
Minute free-floating animal organisms which live in practically all natural waters.
Large marine mammals of the order CETACEA. In the past, they were commercially valued for whale oil, for their flesh as human food and in ANIMAL FEED and FERTILIZERS, and for baleen. Today, there is a moratorium on most commercial whaling, as all species are either listed as endangered or threatened.
The state of the ATMOSPHERE over minutes to months.
The longterm manifestations of WEATHER. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Any significant change in measures of climate (such as temperature, precipitation, or wind) lasting for an extended period (decades or longer). It may result from natural factors such as changes in the sun's intensity, natural processes within the climate system such as changes in ocean circulation, or human activities.

How the clear-sky angle of polarization pattern continues underneath clouds: full-sky measurements and implications for animal orientation. (1/1226)

One of the biologically most important parameters of the cloudy sky is the proportion P of the celestial polarization pattern available for use in animal navigation. We evaluated this parameter by measuring the polarization patterns of clear and cloudy skies using 180 degrees (full-sky) imaging polarimetry in the red (650 nm), green (550 nm) and blue (450 nm) ranges of the spectrum under clear and partly cloudy conditions. The resulting data were compared with the corresponding celestial polarization patterns calculated using the single-scattering Rayleigh model. We show convincingly that the pattern of the angle of polarization (e-vectors) in a clear sky continues underneath clouds if regions of the clouds and parts of the airspace between the clouds and the earth surface (being shady at the position of the observer) are directly lit by the sun. The scattering and polarization of direct sunlight on the cloud particles and in the air columns underneath the clouds result in the same e-vector pattern as that present in clear sky. This phenomenon can be exploited for animal navigation if the degree of polarization is higher than the perceptual threshold of the visual system, because the angle rather than the degree of polarization is the most important optical cue used in the polarization compass. Hence, the clouds reduce the extent of sky polarization pattern that is useful for animal orientation much less than has hitherto been assumed. We further demonstrate quantitatively that the shorter the wavelength, the greater the proportion of celestial polarization that can be used by animals under cloudy-sky conditions. As has already been suggested by others, this phenomenon may solve the ultraviolet paradox of polarization vision in insects such as hymenopterans and dipterans. The present study extends previous findings by using the technique of 180 degrees imaging polarimetry to measure and analyse celestial polarization patterns.  (+info)

Speeds and wingbeat frequencies of migrating birds compared with calculated benchmarks. (2/1226)

Sixteen species of birds passing Falsterbo in southwest Sweden during the autumn migration season were observed using short-range optical methods. Air speeds and wingbeat frequencies were measured, reduced to sea level, and compared with benchmark values computed by Flight.bas, a published flight performance program based on flight mechanics. The benchmark for air speed was the calculated sea-level value of the minimum power speed (V(mp)). The mean speeds of three raptor species that flew by flap-gliding were below V(mp), apparently because the flap-glide cycle involved slowing down below V(mp) when gliding and accelerating back up to V(mp) when flapping. The mean speeds of 11 species that flew by continuous flapping were between 0.82V(mp) and 1.27V(mp). Two passerine species that flew by bounding had mean speeds of 1.70V(mp) and 1.96V(mp), but these high mean speeds reflected their ability to fly faster against head winds. These results do not support predictions from optimal migration theory, which suggest that migrating birds 'should' fly faster, relative to V(mp). However, observations were restricted for technical reasons to birds flying below 200 m and may not represent birds that were seriously committed to long-distance migration. The benchmark wingbeat frequency (f(ref)) was derived from dimensional reasoning, not from statistical analysis of observations. Observed wingbeat frequencies ranged from 0.81f(ref) to 1.05f(ref), except in the two bounding species, whose wingbeat frequencies appeared anomalously high. However, the mechanics of bounding with a power fraction q imply that gravity during the flapping phase is increased by a factor 1/q, and when the value of gravity was so adjusted in the expression for f(ref), the wingbeat frequencies of the two bounding species were predicted correctly as a function of the power fraction. In small birds with more muscle power than is required to fly at speeds near V(mp), bounding is an effective method of adjusting the specific work in the muscle fibres, allowing conversion efficiency to be maximised over a wide range of speeds.  (+info)

Light-dependent magnetoreception in birds: the behaviour of European robins, Erithacus rubecula, under monochromatic light of various wavelengths and intensities. (3/1226)

To investigate how magnetoreception is affected by the wavelength and intensity of light, we tested European robins, Erithacus rubecula, under monochromatic lights of various wavelengths at two intensities using oriented behaviour as an indicator of whether the birds could derive directional information from the geomagnetic field. At a quantal flux of 7 x 10(15) quanta s(-1) m(-2), the birds were well oriented in their migratory direction east of North under 424 nm blue, 510 nm turquoise and 565 nm green light, whereas they were disoriented under 590 nm yellow light. Increasing the intensity of light at the same wavelengths more than sixfold to 43 x 10(15) quanta s(-1) m(-2) resulted in a change in behaviour: under bright blue and green light, the birds now showed a preference for the East-West axis, with the majority of headings at the western end; under bright turquoise light, they oriented unimodally towards a direction slightly west of North. Under bright yellow light, the birds continued to be disoriented. These findings suggest a rather complex relationship between the receptors involved in magnetoreception. Magnetoreception appears to follow rules that are different from those of vision, suggesting that light-dependent magnetoreception may involve receptors and neuronal pathways of its own.  (+info)

Effects of duration and time of food availability on photoperiodic responses in the migratory male blackheaded bunting (Emberiza melanocephala). (4/1226)

The effects of the duration and time of food availability on stimulation of the photoperiodic responses (fattening and gain in body mass, and growth and development of testes) were investigated in the migratory blackheaded bunting (Emberiza melanocephala). Two experiments were performed. Experiment I examined the effects of a reduction in the duration of food supply in buntings that were subjected to long day lengths (16h:8h L:D) and received food ad libitum (group I) or for restricted durations, coinciding with the end of the lights-on period, of 8h (group II) and 4h (group III). Buntings of group I gained in body mass, whereas there was a mixed response in group II (half the birds gained and half lost body mass), and all birds of group III lost body mass. There was no effect on testis growth in groups I and II, but testes grew more slowly in group III. Experiment 2 investigated the effects of both the duration and the time of food availability. Of five groups of birds, group I was exposed to an 8h:16h L:D photoperiod, and groups II-V were exposed to 16h:8h L:D. Whereas birds of groups I and II received food ad libitum, those of groups III-V were fed only for 5 h, at zt 0-5 (group III), zt 5.5-10.5 (group IV) or zt 11-16 (group V), where zt = zeitgeber time and zt 0 refers to the beginning of the lights-on period. Apart from duration, the timing of food availability also had an effect on photoperiodic stimulation under the 16h:8h L:D photoperiod. Birds that were fed ad libitum fattened and gained in body mass, whereas among restricted feeding groups, only birds in the group fed during the first 5 h (zt 0-5, group III) showed a significant increase in body mass (albeit considerably lower than in the ad libitum group). Birds fed during the middle 5h (zt 5.5-10.5, group IV) showed an intermediate response, and those fed during the last 5h (zt 11-16, group V) lost body mass. Testicular growth was suppressed in birds that were fed for 5 h in the evening, but not in those fed for the same period in the morning or in the middle of the long day. Taken together, these results show that the duration of food supply and/or the time of day at which food is available affect photoperiodic stimulation of fattening and gain in body mass as well as the growth and development of gonads in the blackheaded bunting.  (+info)

Complex bird clocks. (5/1226)

The circadian pacemaking system of birds comprises three major components: (i) the pineal gland, which rhythmically synthesizes and secretes melatonin; (ii) a hypothalamic region, possibly equivalent to the mammalian suprachiasmatic nuclei; and (iii) the retinae of the eyes. These components jointly interact, stabilize and amplify each other to produce a highly self-sustained circadian output. Their relative contribution to overt rhythmicity appears to differ between species and the system may change its properties even within an individual depending, for example, on its state in the annual cycle or its photic environment. Changes in pacemaker properties are partly mediated by changes in certain features of the pineal melatonin rhythm. It is proposed that this variability is functionally important, for instance, for enabling high-Arctic birds to retain synchronized circadian rhythms during the low-amplitude zeitgeber conditions in midsummer or for allowing birds to adjust quickly their circadian system to changing environmental conditions during migratory seasons. The pineal melatonin rhythm, apart from being involved in generating the avian pacemaking oscillation, is also capable of retaining day length information after isolation from the animal. Hence, it appears to participate in photoperiodic after-effects. Our results suggest that complex circadian clocks have evolved to help birds cope with complex environments.  (+info)

Juvenile hormone regulation of longevity in the migratory monarch butterfly. (6/1226)

Monarch butterflies (Danaus plexippus) of eastern North America are well known for their long-range migration to overwintering roosts in south-central Mexico. An essential feature of this migration involves the exceptional longevity of the migrant adults; individuals persist from August/September to March while their summer counterparts are likely to live less than two months as adults. Migrant adults persist during a state of reproductive diapause in which both male and female reproductive development is arrested as a consequence of suppressed synthesis of juvenile hormone. Here, we describe survival in monarch butterflies as a function of the migrant syndrome. We show that migrant adults are longer lived than summer adults when each are maintained under standard laboratory conditions, that the longevity of migrant adults is curtailed by treatment with juvenile hormone and that the longevity of summer adults is increased by 100% when juvenile hormone synthesis is prevented by surgical removal of its source, the corpora allatum. Thus, monarch butterfly persistence through a long winter season is ensured in part by reduced ageing that is under endocrine regulation, as well as by the unique environmental properties of their winter roost sites. Phenotypic plasticity for ageing is an integral component of the monarch butterflies' migration-diapause syndrome.  (+info)

Deriving dispersal distances from genetic data. (7/1226)

Dispersal is one of the most important factors determining the genetic structure of a population, but good data on dispersal distances are rare because it is difficult to observe a large sample of dispersal events. However, genetic data contain unbiased information about the average dispersal distances in species with a strong sex bias in their dispersal rates. By plotting the genetic similarity between members of the philopatric sex against some measure of the distance between them, the resulting regression line can be used for estimating how far dispersing individuals of the opposite sex have moved before settling. Dispersers showing low genetic similarity to members of the opposite sex will on average have originated from further away. Applying this method to a microsatellite dataset from lions (Panthera leo) shows that their average dispersal distance is 1.3 home ranges with a 95% confidence interval of 0.4-3.0 home ranges. These results are consistent with direct observations of dispersal from our study population and others. In this case, direct observations of dispersal distance were not detectably biased by a failure to detect long-range dispersal, which is thought to be a common problem in the estimation of dispersal distance.  (+info)

Unexpected coherence and conservation. (8/1226)

The effects of migration in a network of patch populations, or metapopulation, are extremely important for predicting the possibility of extinctions both at a local and a global scale. Migration between patches synchronizes local populations and bestows upon them identical dynamics (coherent or synchronous oscillations), a feature that is understood to enhance the risk of global extinctions. This is one of the central theoretical arguments in the literature associated with conservation ecology. Here, rather than restricting ourselves to the study of coherent oscillations, we examine other types of synchronization phenomena that we consider to be equally important. Intermittent and out-of-phase synchronization are but two examples that force us to reinterpret some classical results of the metapopulation theory. In addition, we discuss how asynchronous processes (for example, random timing of dispersal) can paradoxically generate metapopulation synchronization, another non-intuitive result that cannot easily be explained by the standard theory.  (+info)

Title: How does infection alter animal migrations? Authors: Hoye, Bethany J.; Bauer, Silke S. Source: INTEGRATIVE AND COMPARATIVE BIOLOGY, 56 E96-E96, 1 MAR 2016 Brief summary of the paper: Migratory animals are thought to play a unique role in parasite dynamics and disease epidemics, both within and between resident communities. The importance of migration in disease…
Migrants have been hypothesised to use different migration strategies between seasons: a time-minimization strategy during their pre-breeding migration towards the breeding grounds and an energy-minimization strategy during their post-breeding migration towards the wintering grounds. Besides season, we propose body size as a key factor in shaping migratory behaviour. Specifically, given that body size is expected to correlate negatively with maximum migration speed and that large birds tend to use more time to complete their annual life-history events (such as moult, breeding and migration), we hypothesise that large-sized species are time stressed all year round. Consequently, large birds are not only likely to adopt a time-minimization strategy during pre-breeding migration, but also during post-breeding migration, to guarantee a timely arrival at both the non-breeding (i.e. wintering) and breeding grounds. We tested this idea using individual tracks across six long-distance migratory shorebird
Our results indicate that arrival timing on the breeding grounds, driven by conditions that experienced thousands of kilometres away on tropical wintering grounds, may influence the rates of polygyny and EP paternity in American redstarts, suggesting that non-breeding season events may carry over to influence the process of sexual selection. Specifically, we demonstrate that not only does winter territory quality influence apparent success through arrival timing (wherein variation in apparent success is driven largely by predation; Norris et al. 2004), but also carry-over effects from winter may influence behavioural processes such as female mate choice and male-male competition. Males overwintering in high-quality habitats arrive earlier on the breeding grounds than males overwintering in low-quality habitats (inferred by stable-carbon isotope analysis). In turn, early arriving males sire a higher proportion of their own offspring, sire EPO in the nests of late-arriving males, are more likely ...
The American redstart is a smallish warbler. It measures 11 to 14 cm (4.3 to 5.5 in) in total length and has a wingspan of 16 to 23 cm (6.3 to 9.1 in). Its length is boosted by a relatively long tail and it is one of the lightest birds in its family.[5] Weight is considerably less in winter than in summer. Males weigh an average of 8.6 g (0.30 oz) in summer but drop to 7.2 g (0.25 oz) in winter, while females drop even more from an average of 8.7 g (0.31 oz) to an average of 6.9 g (0.24 oz).[6][7] Among standard measurements, the wing chord is 5.5 to 6.9 cm (2.2 to 2.7 in), the tail is 4.9 to 5.8 cm (1.9 to 2.3 in), the bill is 0.7 to 0.9 cm (0.28 to 0.35 in) and the tarsus is 1.5 to 1.9 cm (0.59 to 0.75 in).[8] The breeding males are unmistakable, jet black above apart from large orange-red patches on their wings and tails. Their breast sides are also orange, with the rest of their underparts colored white. In their other plumages, American redstarts display green in their upperparts, along ...
Physiological challenges during part of the annual cycle (e.g. spring migration) can carry over and affect performance at subsequent phases (e.g. reproduction; Ebbinge and Spaans, 1995; Bauchinger et al., 2009; Legagneux et al., 2012), although the mechanisms that produce these carry-over effects are only rarely understood (Harrison et al., 2011). A particularly interesting but understudied potential mechanism for carry-over effects impacting reproductive performance concerns the antioxidant system and its ability to quench pro-oxidants. Generally, antioxidants provided to embryos are considered beneficial (Saino et al., 2003; McGraw et al., 2005; Berthouly et al., 2007, 2008; Marri and Richner, 2014; Jacob et al., 2015); however, if antioxidant supply is limited and requirements prior to reproduction are relatively high, then a females allocation of antioxidants to reproduction could be restricted and thus produce an important carry-over effect.. Birds rely on suites of antioxidant compounds, ...
The decline of long distance migratory songbirds has been linked to an increasing mismatch between spring arrival date and timing of food availability caused by climate change. It is unclear to what extent individuals can adjust migration timing or en route rate in response to annual variation in temperature at breeding sites. We tracked the ca. 7300 km spring migration of 52 purple martins Progne subis from the Amazon basin to two breeding sites in eastern North America. Spring 2012 was the warmest on record in eastern North America, but contrary to predictions, this did not result in earlier departure, faster migration, or earlier arrival at breeding areas compared with earlier years. Temperatures and rainfall in the Amazon basin at the time of departure were not higher in 2012, and conditions along migration routes did not give consistent signals of a warmer spring at the breeding site. Once in North America, individuals likely had limited opportunity to speed up their migration because this final
Many of the worlds migratory animals are in decline. This essay explores the unique scientific and political challenges of protecting migratory species while they are still common.
A novel system and method for a network overlay geolocation system operating in a host wireless communication system with repeaters (350 a , 350 b) is disclosed. Embodiments of the novel system and method enable the geolocation system to determine if signals being received by the geolocation system arrive directly from a target mobile appliance or if the signals are passing through a repeater (350 a , 350 b) and therefore are subject to a known time delay. Embodiments of the novel system and method provide a more accurate geolocation of mobiles served by repeater stations than capable in the prior art.
In this study, we investigated the effect of nine known exonic polymorphisms in six candidate genes for behavioural traits on the expression of migratory behaviour in a migratory bird species. Three independent tests indicate that long alleles at a microsatellite in the 3′-UTR of the ADCYAP1 gene are associated with high migratory activity in blackcaps, either measured as migratory restlessness of individuals in the laboratory or assessed as the proportion of migrants and migration distance in natural populations. Both the within-population analyses and the among-population comparison indicate that genotypic variation at this gene explains about 3 per cent of phenotypic variation in migratoriness, which amounts to a maximum of 6-8% of the additive genetic variance in this trait, assuming a mean heritability of this trait of 0.43 [26]. This represents a relatively large single-gene effect on a complex behavioural trait when compared with reported genetic effects on other complex traits ...
Migration is the regular seasonal movement, often north and south, undertaken by many species of birds. Bird movements include those made in response to changes in food availability, habitat, or weather. Sometimes, journeys are not termed true migration because they are irregular (nomadism, invasions, irruptions) or in only one direction (dispersal, movement of young away from natal area). Migration is marked by its annual seasonality.[9] Non-migratory birds are said to be resident or sedentary. Approximately 1800 of the worlds 10,000 bird species are long-distance migrants.[10][11]. Many bird populations migrate long distances along a flyway. The most common pattern involves flying north in the spring to breed in the temperate or Arctic summer and returning in the autumn to wintering grounds in warmer regions to the south. Of course, in the southern hemisphere the directions are reversed, but there is less land area in the far south to support long-distance migration.[12]. The primary ...
Researchers have isolated what are essentially tiny compass needles in the noses of rainbow trout that may explain these and many other animals incredible ability to navigate across vast distances.
The Road Ecology Center of the John Muir Institute of the Environment at the University of California, Davis performed an assessment of the impacts of roads on animal population viability. In their assessment they determined that roads and structures fragment animal populations. This reduces the numbers of animals found in an area and reduces the quality of the local environment. If their numbers and health are reduced because of infrastructure development their ability to migrate will also be negatively impacted since not all animals that perform a migration survive, the numbers of mature animals could be reduced. Roads, especially roads with a large amount of traffic can be very dangerous for migrating animals that could get hit by a vehicle. ...
Every year thousands of species from zooplankton to blue whales pack up and move to follow changing seasons in search of warmer weather and food.
Traditionally, bird migration has been treated separately relative to other movements within an individuals life history (1-2). Although long-distance migration operates on different scales and produces different patterns than those of other movement types in a birds life cycle, there are also many similarities (cf. ref. 3). As in other biotic movements, migration involves the assessment of internal state of the organism, external factors, and past behavior to make decisions about motion and navigation (4).. One significant challenge of migration research is measuring the extent to which migratory routes and schedules of individual migrants are influenced by external factors, including wind direction and speed (5-6), food availability and habitat (2), and the behavior of other migrants (1, 7). One important axis of variation among migratory birds is the extent to which environmental factors act as facilitators of, as opposed to barriers to, movement. Determining the effects of environmental ...
The Migratory Bird Program collaborates with other Federal and State agencies, tribes, and other organizations to manage migratory bird species through the support of partnerships that deliver regional, national and international management plans that conserve habitat for migratory birds and other wildlife. To learn more about the various bird conservation partnerships and initiatives the Migratory Bird Program participates in, see the following: ...
Just a few stopover sites can make or break an entire migration, offering crucial moments to rest, shelter, and refuel. With the help of eBird data, Cornell Lab modelers identified important mid-migration stopover habitat for nine migrant species. Map graphic by Jillian Ditner and Matt Strimas-M ...
Migratory animals are often blamed for the global spread of diseases, but new Deakin University research has shown their role may be less significant than previously thought.. With the rate of zoonotic diseases - pathogens that jump from animal hosts to humans - on the rise, migratory animals have been under increasing scrutiny and suspicion of aiding the spread of bird flu, Lyme disease, and even Ebola.. However, despite the fact that billions of animals fly, swim and walk around the globe every year on their seasonal migrations, researchers from Deakin Universitys Centre for Integrative Ecology (CIE) say there is surprisingly little direct evidence that migratory animals are frequently spreading pathogens long distances.. In humans, travelling increases our risk of getting ill because we come into contact with many new microbes that our immune system has never encountered before, said researcher and PhD candidate Alice Risely.. We wanted to work out if migrant animals are also more ...
It is widely recognized that migration has a great impact on households quality of life, and income is an important indicator for evaluating success of a migration (or mobility) strategy. Using data...
This paper covers the SD-WAN migration design for various types of architecture and takes you through process, routing considerations, and a step-by-step migration path.
As you may remember, earlier I offered that the recolonization this past May and early June of the summer breeding area was quite favorable. Monarchs generally arrived on time and in good numbers leading to a large second generation. Things looked favorable for a large migratory population that could rival that of 2018 (6.05 hectares) - provided that the summer temps were within 2F of the long-term average and that September temperatures in the north were generally normal as well.. I have been following the weather closely for the last several months and things still look good for a large migration over most of the summer breeding area. However, I have doubts about the number of monarchs that will join the migration from the eastern Dakotas and western Minnesota. Portions of that region have been much warmer and drier than is generally ideal for monarch population development.. In contrast, due perhaps to adequate rainfall and moderate summer temperatures, monarchs are much more abundant in ...
The Cloud has become the go-to computing point for enterprises these days. Many companies prefer to transition their existing apps to the Cloud, simply because
As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean. ...
Objectives. Most migration statistics in the United States focus on changes in place of usual residence, thereby missing temporary moves such as business trips, vacations, and seasonal migration. In this article, we analyze the temporary in- and out-migration of elderly adults in Florida. Our primary objectives are to develop a methodology for estimating the number of temporary migrants and to analyze their demographic characteristics. Methods. Using survey data, we estimated the number, timing, and duration of temporary moves and the origins, destinations, and characteristics of elderly temporary migrants. We compared the characteristics of temporary in-migrants, out-migrants, and non-migrants, and we used logistic regression analysis in order to evaluate differences in those characteristics. Results. We estimate that Florida had more than 800,000 elderly temporary in-migrants and more than 300,000 elderly temporary out-migrants at peak times in 2005. Income, education, employment, and health ...
Movement Ecology is an open-access, interdisciplinary journal disseminating novel insights into the ecology of movement of whole organisms. We welcome ...
This study evaluated the carry-over effects of ewe body reserves during early pregnancy on peri-partum adipose tissue metabolism. Forty-nine multiparous ewes were divided in three categories according to their body condition score (BCS) at day 30 of pregnancy (BCS 3, 3.25-3.5). Live-weight (LW) and BCS gains from 1st to 4th month of pregnancy were greater in ewes with BCS 3 animals. In contrast, in the last month of pregnancy, there was BCS decrease in all groups, although LW continued increasing. There were no differences in LW or BCS across ewe categories during this period. Peripheral leptin levels throughout the three last weeks of pregnancy were greater in ewes with BCS , 3 than in the rest, but this difference did not persist after lambing. Plasma metabolites related to energy metabolism, milk yield and lamb growth were not affected by ewe BCS in early pregnancy. Long-chain saturated milk fatty acids (FA) (C16-C24) were greater in ewes with lowest BCS (,3 and 3). Ewes with greater BCS ...
Abstract: Man/hardware-in-the-loop laboratory simulation is the most cost-effective methodology for evolving/maturing advanced receiver geolocation technologies because the battlefield can be brought to the laboratory through multi-spectral synthetic battlespace simulation. Current laboratory laboratory RF threat environment simulators do not provide the required fidelity to accurately simulate the parameters needed to develop ultra-precise direction finding and geolocation capabilities. DRA proposes to solve this challenging technology limitation by developing an Advanced RF Geolocation Simulation Testbed (ARGST) for rapid prototyping of advanced RF receiver processor geolocation. The ARGST flexible architecture will enable the development of advanced geolocation technologies for single and multiple aircraft within a controlled laboratory environment enabling repeatable test and step-by-step evaluation/debugging capabilities. ARGST will provide simulator technology to develop advanced ...
Abstract: Man/hardware-in-the-loop laboratory simulation is the most cost-effective methodology for evolving/maturing advanced receiver geolocation technologies because the battlefield can be brought to the laboratory through multi-spectral synthetic battlespace simulation. Current laboratory laboratory RF threat environment simulators do not provide the required fidelity to accurately simulate the parameters needed to develop ultra-precise direction finding and geolocation capabilities. DRA proposes to solve this challenging technology limitation by developing an Advanced RF Geolocation Simulation Testbed (ARGST) for rapid prototyping of advanced RF receiver processor geolocation. The ARGST flexible architecture will enable the development of advanced geolocation technologies for single and multiple aircraft within a controlled laboratory environment enabling repeatable test and step-by-step evaluation/debugging capabilities. ARGST will provide simulator technology to develop advanced ...
Osmond et al. 2013 looked at female carotenoid (yellowish) ornamentation in redstarts, restricting their study to nesting season in Ontario, and to just the bright (yellow) tail and flank ornamental patterns, and not the wing patches. Older females had brighter yellow tail feathers (but not flank) than yearling females. A model with both flank and tail brightness predicted 41% of the variation in yearling female fledging success, brighter females fledging fewer offspring, contrary to prediction. Pairing date, first egg date, and number of young fledged did not differ between yearling and older female age classes. Females with brighter tails fledged fewer young, but just in yearlings, whereas the number of visits older females made to nests declined with tail brightness. Older males made fewer visits to the nests of brighter colored older female mates, and spent less time at the nests based on females color brightness, although this relationship was not quite statistically significant. Females ...
The gray whale has the longest annual migration distance of any mammal. Gray whales leave Baja, California, and western Mexico in the spring, migrating to the Bering and Chukchi seas for the summer months. Tracking a sample of 50 whales for a year provided a mean migration distance of 11,064 miles with a standard deviation of 860 miles. Construct a 90% confidence interval for the variance for the migrating whales. Assume that the population of migration distances is Normally distributed ...
As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean. ...
PreS-Gr 2-Herrington explores seasonal changes in weather, plant and animal life, and peoples activities. Spreads consist of a few simple sentences, plus a fact box and/or caption opposite full-page color photos. The titles introduce concepts such as animal migration and hibernation, although only Spring notes that seasons in northern and southern hemispheres are opposite. Most of the stock photos are adequate. Some fall colors are garish, and people can look more posed than spontaneous. Each book includes a brief picture glossary and instructions for a simple science activity, such as making a sun print or rain gauge with adult help. Suggestions to take a nature walk or start a science journal encourage readers to continue observing seasonal signs. Accompanying publisher websites offer articles and web links from Grolier Online ...
The Observatory of the Strait holds an interpretation center and a bird watch point to disseminate the problem of declining biodiversity and its relation to global change through the study of animal migrations in an exhibition entitled Migration and Global Change.. In this way, as well as scientific activity we pay special attention in disseminating innovation and knowledge through educational and scientific workshops. Most activities are developed for both children and adults to get the interaction of participants with the elements of the environment, letting to enjoy a new kind of environmental activities.. ...
Every night, under the cover of darkness, countless small sea creatures - from squid to krill - swim from the ocean depths to near the surface to feed. This vast animal migration - the largest on the planet and a critical part of Earths climate system - has been observed globally for the first time thanks to an unexpected use of a space-based ...
The Older Class studied many forms of migration, including animal migration. The class watched National Geographics Planet Earth series and picked animals to base their projects on, elaborating on what each animal eats, their physical makeup, and how and why they migrate ...
The behaviour of an Australian day migrant, the yellow-faced honeyeater Lichenostomus chrysops, was studied in order to assess the role of the sun in migratory orientation. During autumn migration, all tests took place under a sunny sky; birds were tested while living in the natural photoperiod (control) and with their internal clock shifted 4 h fast and 4 h slow. In spring, all birds were shifted 3 h fast; tests in overcast conditions, with the birds relying on their magnetic compass, served as controls. In control tests in both seasons, the birds preferred directions corresponding to those observed in the wild. When tested under sunny conditions with their internal clock shifted, the birds changed their directional tendencies. However, their preferred directions were different from those expected if a time-compensating sun compass was being used. After about 6 days, the shifted birds directions were no longer different from the control direction. This behaviour argues against a major role of ...
to 1) assess winter habitat dynamics and validate the use of stable carbon isotopes as a measure of ... effects from winter habitat on arrival timing, reproduction, and post-fledging survival, and 3) explore ... carry-over effects between breeding events, molt, and subsequent winter habitat use. Combined, my results .... ...
to 1) assess winter habitat dynamics and validate the use of stable carbon isotopes as a measure of ... effects from winter habitat on arrival timing, reproduction, and post-fledging survival, and 3) explore ... carry-over effects between breeding events, molt, and subsequent winter habitat use. Combined, my results .... ...
The Greater Yellowstone Ecosystem lies in the path of some of the most significant wildlife migration routes on the planet. However, major challenges await migratory animals as they leave Yellowstone National Park. The long-term conservation of these animals depends on the actions of landowners and other stakeholders far beyond the national park’s borders. As part of the National Park Service’s centennial celebration, and in conjunction with the May issue of National Geographic magazine, “Invisible Boundaries” uses stunning photographs, immersive video, interactive migration maps, cultural objects, and original artwork to explore the compelling story behind some of the most amazing animal migrations on the planet. Come examine why animals make these incredible journeys and learn about the cutting-edge conservation science that’s taking place in one of America’s crowning natural treasures—Yellowstone National Park. This exhibition is located in
Zonotrichia leucophrys In this photo you can see the white stripe on the head that gives the bird its name. Location: Observatory Street, Sitka, Alaska Previous: White-crowned Sparrow (Zonotrichia leucophrys) ...
Overall, three main findings emerged. (i) Pigeons can discriminate magnetic compass directions with the left as well as the right eye. This suggests processing of magnetic compass information by either brain hemisphere. (ii) Brain systems associated with the left and the right eye seem to process magnetic cues differently. (iii) Regarding the correct detection of the goal direction, the right eye (left hemisphere) is superior, as in most other cases studied so far.. The first important finding is that pigeons are capable of magnetic compass orientation with the left as well as the right eye and, consequently, with both brain hemispheres. This contrasts with the findings in European robins (Wiltschko et al. 2002), silvereyes (Wiltschko et al. 2003) and domestic chicks (Rogers et al. 2008), but is in line with the recent findings in garden warblers (Hein et al. in press). Interestingly, Rogers et al. (2008) considered the possibility that either brain hemisphere of chicks might, in principle, be ...
The monarch butterfly (Danaus plexippus) is emerging as a model organism to study the mechanisms of circadian clocks and animal navigation, and the genetic underpinnings of long-distance migration. The initial assembly of the monarch genome was released in 2011, and the biological interpretation of the genome focused on the butterflys migration biology. To make the extensive data associated with the genome accessible to the general biological and lepidopteran communities, we established MonarchBase (available at http://monarchbase.umassmed.edu). The database is an open-access, web-available portal that integrates all available data associated with the monarch butterfly genome. Moreover, MonarchBase provides access to an updated version of genome assembly (v3) upon which all data integration is based. These include genes with systematic annotation, as well as other molecular resources, such as brain expressed sequence tags, migration expression profiles and microRNAs. MonarchBase utilizes a variety of
Abstract- We examined stopover site fidelity exhibited by Tennessee Warblers (Oreothlypis peregrina) and Cape May Warblers (Setophaga tigrina) to a high-elevation banding site in the southern Appalachian Mountains. From 1999-2014, 6,175 Tennessee Warblers and 198 Cape May Warblers were captured and banded at Whigg Meadow banding station (Monroe County, Tennessee), with 16 Tennessee Warblers and one Cape May Warbler recaptured in subsequent years. The inter-annual recapture, or the recapture of birds banded in prior years, of 16 Tennessee Warblers documents the highest known incidence of fidelity to a single stopover site in a Nearctic-Neotropical migrant passerine species. These results indicate that fidelity to stopover sites by long-distance migrant passerine species occurs, but may be limited to a specific suite of species. We encourage continued reporting of inter-annual site faithful passerines and research regarding stopover site fidelity and the ecology of stopover sites in order to aid ...
Scollon, E. J., Carr, J. A., Rintoul, D. A., McMurry, S. T. and Cobb, G. P. (2012), Metabolism and distribution of p,p′-DDT during flight of the white-crowned sparrow, Zonotrichia leucophrys. Environmental Toxicology and Chemistry, 31: 336-346. doi: 10.1002/etc.730 ...
Monarch Butterfly, Danaus plexippus with pictures and description of what this butterfly needs and which native plants to put in your garden.
One of the continents best-studied and most familiar songbirds, the White-throated Sparrow is found at some season throughout much of North America south of the tree line and principally east of the Rocky Mountains. To many its distinctive whistled song is synonymous with the northern wilderness. During migration and throughout its winter range, this species is a common visitor at feeding stations. It breeds primarily in the boreal coniferous and mixed forest and, a short-distance migrant, winters mainly in the southeastern U.S. A habitat generalist, it tends to occur in shrubby edges or early successional stages or openings in the forest, nesting and foraging for seeds and insects on or near the ground.. Throughout its extensive range the White-throated Sparrow shows no subspecific variation. However, it exhibits plumage polymorphism (white-striped and tan-striped morphs - see color photos) in both sexes, most obvious in the breeding season, associated with a difference in an autosome. These ...
The genomics era has produced an arsenal of resources from sequenced organisms allowing researchers to target species that do not have comparable mapping and sequence information. These new non-model organisms offer unique opportunities to examine environmental effects on genomic patterns and processes. Here we use comparative mapping as a first step in characterizing the genome organization of a novel animal model, the white-throated sparrow (Zonotrichia albicollis), which occurs as white or tan morphs that exhibit alternative behaviors and physiology. Morph is determined by the presence or absence of a complex chromosomal rearrangement. This species is an ideal model for behavioral genomics because the association between genotype and phenotype is absolute, making it possible to identify the genomic bases of phenotypic variation. We initiated a genomic study in this species by characterizing the white-throated sparrow BAC library via filter hybridization with overgo probes designed for the chicken,
A Blueprint for the Future of Migratory Birds Migratory Bird Program Strategic Plan 2004-2014 U.S. Fish and Wildlife Service Message from the Assistant Director for Migratory Birds and State Programs The Migratory Bird Program of the U.S. Fish and Wildlife Service enjoys a rich and successful tradition. It has been instrumental, on its own and with partners, in delivering bird conservation throughout the hemisphere for several decades. It is a critical hub through which much is accomplished. This strategic plan outlines the future direction of the Migratory Bird Program and how it will continue to contribute to bird conservation in North America and around the world. Like a blueprint it lays out the goals and design for a promising future for migratory birds. This blueprint reflects the collective wisdom of many people and groups that care deeply about birds and their habitats. Birds are indicators of the health and quality of our environment and are enjoyed by a large proportion of our ...
A Blueprint for the Future of Migratory Birds Migratory Bird Program Strategic Plan 2004-2014 U.S. Fish and Wildlife Service Message from the Assistant Director for Migratory Birds and State Programs The Migratory Bird Program of the U.S. Fish and Wildlife Service enjoys a rich and successful tradition. It has been instrumental, on its own and with partners, in delivering bird conservation throughout the hemisphere for several decades. It is a critical hub through which much is accomplished. This strategic plan outlines the future direction of the Migratory Bird Program and how it will continue to contribute to bird conservation in North America and around the world. Like a blueprint it lays out the goals and design for a promising future for migratory birds. This blueprint reflects the collective wisdom of many people and groups that care deeply about birds and their habitats. Birds are indicators of the health and quality of our environment and are enjoyed by a large proportion of our ...
Southern Right Whales migrate between Antarctica in the summer and north to places like Australia and South Africa to breed and give birth. In Argentina, the best place to see them is along Peninsula Valdes in September, though they can be seen from June to December. And on the other side of the world in September, Hermanus, South Africa plays host to the Southern Right Whales as they return to the bay for calving and mating season. You know its a pretty big deal there too - theres a n annual three-day Whale Festival to celebrate the best land-best whale watching in the world.. ...
Recent studies have begun to elucidate the genetic basis for phenotypic traits in salmonid species, but many questions remain before these candidate genes can be directly incorporated into conservation management. In Chinook Salmon (Oncorhynchus tshawytscha), a region of major effect for migration timing has been discovered that harbors two adjacent candidate genes (greb1L, rock1), but there has been limited work to examine the association between these genes and migratory phenotypes at the individual, compared to the population, level. To provide a more thorough test of individual phenotypic association within lineages of Chinook Salmon, 33 candidate markers were developed across a 220 Kb region on chromosome 28 previously associated with migration timing. Candidate and neutral markers were genotyped in individuals from representative collections that exhibit phenotypic variation in timing of arrival to spawning grounds from each of three lineages of Chinook Salmon. Association tests confirmed ...
Gene maps of monarch butterflies and related species suggest that an ice age shift explains their migrations, a study team suggests.
The monarch butterfly (Danaus plexippus) may seem to be one of the most delicate creatures alive. But despite its frail appearance, every year the monarch makes a long and perilous journey thousands of miles south to escape the harsh winters of the North. While on this journey, the monarch can often be seen resting on the butterfly bush (Buddleia davidii) in Silver Lake Park. The monarch butterfly begins its migration in September and travels for 30-45 days. Monarchs originating east of the Rocky Mountains and as far north as Canada make their way to the quiet, cool mountains of the Transvolcanic Region in central Mexico, about 60 miles west of Mexico City in the state of Michoacan. Migrating monarchs can be observed along the Citys beaches and coastal parks. Monarchs from New York City travel as much as 2,100 miles, averaging 50 miles a day, to reach their destination by the end of October. Resting in the chilly treetops, the butterflies hibernate for four months, covering oyamel fir trees ...
The mallard Anas platyrhynchos is a reservoir species for influenza A virus in the northern hemisphere, with particularly high prevalence rates prior to as well as during its prolonged autumn migration. It has been proposed that the virus is brought from the breeding grounds and transmitted to conspecifics during subsequent staging during migration, and so a better understanding of the natal origin of staging ducks is vital to deciphering the dynamics of viral movement pathways. Ottenby is an important stopover site in southeast Sweden almost halfway downstream in the major Northwest European flyway, and is used by millions of waterfowl each year. Here, mallards were captured and sampled for influenza A virus infection, and positive samples were subtyped in order to study possible links to the natal area, which were determined by a novel approach combining banding recovery data and isotopic measurements (delta H-2) of feathers grown on breeding grounds. Geographic assignments showed that the ...
Associate Professor Sonia Altizers students and laboratory staff assisted with sequences of the monarch life cycle. People in my lab guided the photographers and assistants and provided materials to them to film monarch eggs, larvae, pupation, adults laying eggs, praying mantis eating monarchs, and more, said Altizer, an expert on monarch butterflies.She has conducted substantial research on the variation among monarch butterflies across their worldwide range, and the ecological and evolutionary consequences of their long-distance migration, particularly as it relates to host-parasite interactions. Her study of the relationship between migration distance and monarch butterfly wing shape, co-authored with Andy Davis, assistant research scientist in the Odum School, was published in the journal Evolution in Feb. 2010 ...
Associate Professor Sonia Altizers students and laboratory staff assisted with sequences of the monarch life cycle. People in my lab guided the photographers and assistants and provided materials to them to film monarch eggs, larvae, pupation, adults laying eggs, praying mantis eating monarchs, and more, said Altizer, an expert on monarch butterflies.She has conducted substantial research on the variation among monarch butterflies across their worldwide range, and the ecological and evolutionary consequences of their long-distance migration, particularly as it relates to host-parasite interactions. Her study of the relationship between migration distance and monarch butterfly wing shape, co-authored with Andy Davis, assistant research scientist in the Odum School, was published in the journal Evolution in Feb. 2010 ...
The Monarch Butterfly. The knowledge of citizen scientists, biologists, and naturalists informs this books coverage of every aspect of the monarch butterflys life cycle (breeding, migration, and overwintering) from the perspective of every established monarch population...
Amazing pictures of 5 Unique Pictures Of Dogs In Animal Shelters is totally great for your biological science knowledge. The image Resolution 500 x 484 px and the image size only 188 kb. Click the thumbnail to see the larger version.. Tagged with: blue dog pictures for sale, bulldog puppies for sale, dog for sale pictures, dogs for sale pictures, english bulldog for sale, .. ...
We are a preferred migration and Gold partner of Microsoft Azure, delivering modern unified cloud-based data warehousing solutions via automated BIRD tools with unprecedented capabilities. A successful cloud migration plan starts with a clear, data-driven understanding of your current infrastructure. This assessment using our unique automation tool - Eagle, the planner offers a foundational understanding of the existing data warehouse and provides a robust migration strategy Eagle - The Automated Migration Planner Offers : Eagle assesses the existing data warehouses and provides a **unified holistic view of the current data warehouse and related dependencies.** Implementing granular level assessment enables Eagle to generate comprehensive report which helps in formulating a **powerful migration strategy with a systemic timeline.** Eagle provides **optimized data model recommendations and also assists in reviewing the impact of implementing the change performed in the current data model** which ...
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
Many users use a location-based application on a portable device to be a navigator when driving. However, there exists an incident that two roads are located on the same geolocation, i.e., same values of latitude and longitude but different altitude, for very long distance where one road is located on the ground level and another one is elevated. This incident mostly confuses a location-based application to precisely retrieve the actual road that a vehicle is currently on and, consequently, causes the application to either navigate incorrectly or suggest a route that is a detour. Calling an altitude from a GPS sensor might be a possible solution but it came with problems of accuracy, especially for mid-grade GPS sensors that equipped with most smartphone in todays market. We proposed a concept of implementing a classification model that can classify whether a vehicle is on a ground road or an elevated road regardless of geolocation data. We trained and validated two models using a dataset that ...
Report sightings of migrating Monarch Butterflies. Journey North citizen scientists track monarch butterfly migration each fall and spring as Monarch Butterflies at Sanctuary in Mexico migrate to and from Mexico.
Every night across the worlds oceans, numerous marine animals arrive at the surface of the ocean to feed on plankton after an upward migration of hundreds of metres. Just before sunrise, this migration is reversed and the animals return to their daytime residence in the dark mesopelagic zone (at a depth of 200-1,000 m). This daily excursion, referred to as diel vertical migration (DVM), is thought of primarily as an adaptation to avoid visual predators in the sunlit surface layer1,2 and was first recorded using ship-net hauls nearly 200 years ago3. Nowadays, DVMs are routinely recorded by ship-mounted acoustic systems (for example, acoustic Doppler current profilers). These data show that night-time arrival and departure times are highly conserved across ocean regions4 and that daytime descent depths increase with water clarity4,5, indicating that animals have faster swimming speeds in clearer waters4. However, after decades of acoustic measurements, vast ocean areas remain unsampled and places for
Every night across the worlds oceans, numerous marine animals arrive at the surface of the ocean to feed on plankton after an upward migration of hundreds of metres. Just before sunrise, this migration is reversed and the animals return to their daytime residence in the dark mesopelagic zone (at a depth of 200-1,000 m). This daily excursion, referred to as diel vertical migration (DVM), is thought of primarily as an adaptation to avoid visual predators in the sunlit surface layer1,2 and was first recorded using ship-net hauls nearly 200 years ago3. Nowadays, DVMs are routinely recorded by ship-mounted acoustic systems (for example, acoustic Doppler current profilers). These data show that night-time arrival and departure times are highly conserved across ocean regions4 and that daytime descent depths increase with water clarity4,5, indicating that animals have faster swimming speeds in clearer waters4. However, after decades of acoustic measurements, vast ocean areas remain unsampled and places for
The month of September will start out with dynamic hummingbirds that will amaze you with their acrobatic flying feats. Only the females will visit the New York City area, and they are very territorial, even in migration-often chasing each other off the orange jewel weed blossoms that are their favorite treat. Warblers will begin to trickle in and become more plentiful as the month ends. American Redstarts, Ovenbirds, and Blue-winged, Black and White, Palm, Yellow-rumped, Black-throated Blue, Nashville, and Orange-crowned Warblers are just some of the warblers that will pass through.. One of the most spectacular hawk movements occurs in the middle of September. Broad-winged hawks migrating back to South America ride the Atlantic Flyway over NYBG, picking up warm air thermals and circling in kettles (50 hawks or more circling until they find a warm air thermal) over the Garden grounds. At times they can fill the sky and are quite a sight to behold. We have counted up to 5,000 hawks at a time ...
Rocky Mountain Greater Sandhill Cranes Map Credit: Jim Dubovsky, USFWS. The Mid-Continent population of Sandhill Cranes migrates through the Central Flyway from their breeding grounds inSiberia, Alaska, and Canada to their wintering grounds in Texas, New Mexico, southeastern Arizona, and Mexico. The population is estimated to be over ½ million birds, the largest crane population in the world. The Rocky Mountain of population of Greater Sandhill Cranes migrates through the eastern portion of the Pacific Flyway and western portion of the Central Flyway. The population is estimated to be about 20,000 birds.. The Harvest Information Program (HIP) survey provides critical scientific harvest information to the U.S. Fish and Wildlife Service (USFWS) and State Wildlife Agencies responsible for the management of these birds. It is very important for all sandhill crane hunters to cooperate in this harvest survey, in doing so hunters help the management of this important migratory bird species. Each year, ...
Figure 1 Roseate Tern fitted with a geolocator mounted on a plastic leg ring on Rockabill Island in the Irish Sea at the start of the study in 2017 (a, b). Roseate Tern after being fitted with a geolocator on Coquet Island in 2018 (c) and a close up of the geolocator on a different bird after its return to Coquet Island the next year, with its geolocator intact and still functioning (d).. While geolocators lack the locational resolution of GPS devices, they are relatively inexpensive and analytical approaches for interpreting light-level data are now much more refined so that, with other measurements, such as temperature, they can provide good locational resolution at an appropriate spatial scale for migration-ecology studies.. From 20 birds tagged with geolocators at each site, but in different years, 31 were recovered and yielded 30 datasets for analysis, 16 from Coquet Island and 14 from Rockabill with no apparent adverse impacts on the birds physical condition and reproductive output. These ...
Abstract: In the Tieli Forestry Bureau of the Lesser Xingan Mountains in Northeast China, we recorded a total of 79 GPS coordinates of presence traces for red deer (Cervus elaphus) during winter field investigations in November 2014 and January 2015. We grouped 19 environmental predictor variables into four classes including terrain, landscape type, vegetation structure and human disturbance, we used the MaxEnt model to predict potential suitable winter habitat distribution for red deer and determine the contribution of each environment factor to the distribution characteristics. The accuracy of our prediction models was accessed by the area under the curve (AUC) values of a receiver operating characteristic (ROC) curve, and validation showed that the results had high average AUCs: 0.949 for training data and 0.958 for testing data. The results of a Jackknife test indicated that landscape type had the strongest influence on winter habitat suitability of red deer among the 4 class variables. ...
Ryder, Thomas B.; Fox, James W.; Marra, Peter P.. 2011 Estimating migratory connectivity of gray catbirds (Dumetella Carolinensis) using geolocator and mark-recapture data. Auk, 128 (3). 448-453. https://doi.org/10.1525/auk.2011.11091 Rodríguez, Airam; Negro, Juan J.; Bustamante, Javier; Fox, James W.; Afanasyev, Vsevolod. 2009 Geolocators map the wintering grounds of threatened Lesser Kestrels in Africa. Diversity and Distributions, 15 (6). 1010-1016. https://doi.org/10.1111/j.1472-4642.2009.00600.x Rodríguez, Airam; Negro, Juan J.; Fox, James W.; Afanasyev, Vsevolod. 2009 Effects of geolocator attachments on breeding parameters of Lesser Kestrels. Journal of Field Ornithology, 80 (4). 399-407. https://doi.org/10.1111/j.1557-9263.2009.00247.x Rose, Kathryn C.; Hart, Jane K.; Martinez, Kirk. 2009 Seasonal changes in basal conditions at Briksdalsbreen, Norway: the winter-spring transition. Boreas, 38 (3). 579-590. https://doi.org/10.1111/j.1502-3885.2008.00079.x Raupach, M.R.; Canadell, J.G.; ...
With millions of birds descending on Delaware Bay during migration, the propensity for bird flu (H5N1) to spread among flocks-and potentially among humans-has been a pressing concern. And as animals, from gray whales to monarch butterflies make epic treks of thousands of kilometers each year, the role of these travelers in spreading highly pathogenic diseases along the way has been a key question for ecologists and epidemiologists alike.. At first brush, a long-distance voyage might sound like an excellent opportunity for substantial disease spread. But perhaps unexpectedly animal migration might actually help keep super-pathogenic diseases in check, argued a team of researchers behind a new review paper.. By placing disease in an ecological context, you not only see counterintuitive patterns but also understand the advantage of disease transmission, John Gittleman, dean of University of Georgias Odum School of Ecology and who was not involved in the paper, said in a prepared ...
Monarch Butterflies, as they do every fall, are heading south for the winter. Along the coast one can see pretty big numbers of them, especially on days when wind out of the north carries them to the shore. I am always amazed by long migrations, but it is usually birds I think of when considering long-distance migrants. To me, it is even more amazing that something as fragile as a butterfly can fly thousands of miles to a place it has never been and survive the winter.. On the last day of September Daisy and I were celebrating ten years together and we headed out to the coast to enjoy the waves and sand on a weekday when the crowds were sparse. Many monarchs were moving through, and quite a few of them were pausing to refuel from what is likely Seaside Goldenrod.. ...
The fall migration of cloudless sulphurs is the easiest to observe butterfly migration in the southeastern United States. On fine days in the fall, in the Southeast, any butterfly watcher driving an east-west road through open country will likely see these bright yellow butterflies crossing the road and can confirm that they are crossing much more frequently from north to south than from south to north. (Monarchs are migrating at the same time, but they generally fly too high to see and are heading for Mexico and hence may miss the Southeast.) During fall, the numbers of cloudless sulphurs crossing an east-west line bisecting the Florida peninsula at the latitude of Gainesville may approach the numbers of monarchs overwintering in clusters at highly localized sites in Mexico (Walker 1991, 2001). The seasonal migrations of cloudless sulphurs and monarchs are similar in that each species is abandoning large and favorable summer breeding areas that have lethally low winter temperatures for more ...
Are you or your children interested in learning about monarch butterflies? If so, you have GOT to check out the Your Backyard Monarch Butterfly DVD and the…
Beyond Pesticides, May 30, 2019) Last week, the U.S. Fish and Wildlife Service (FWS) agreed to a 2020 deadline for reaching a decision on protection status for monarch butterflies under the Endangered Species Act. This agreement comes nearly five years after the filing of a petition by conservationists with the Center for Biological Diversity and Center for Food Safety led to the launch of an ongoing status review in 2014. While FWS deliberates, monarch butterflies continue their staggering, decades-long population decline, perhaps for the last of their decades.. In the 1990s, the eastern monarch population numbered nearly one billion butterflies, and the western population numbered more than 1.2 million. Last years winter counts recorded around 93 million eastern monarchs and fewer than 200,000 western monarchs. That loss is so staggering that in human-population terms it would be like losing every living person in the United States except those in Florida and Ohio, Tierra Curry, a senior ...
Behaviour In central and north-west Europe this species is mainly sedentary (del Hoyo et al. 1992) although other populations are chiefly migratory (Madge and Burn 1988). Migratory populations arrive on their breeding grounds from late-April (Kear 2005a) where they breed in single pairs or loose groups (del Hoyo et al. 1992) with hundreds often nesting at the same site (although not colonially) (Kear 2005a). Once incubation has commenced (Madge and Burn 1988) the males gather in flocks (Madge and Burn 1988, Kear 2005a) to moult (moult migrations occurring in some areas) between late-June and early-September when they become flightless for 3-4 weeks (Scott and Rose 1996) (females moult their flight feather 1-2 months later) (Scott and Rose 1996). The autumn migration begins in September (Kear 2005a), with a segregation of the sexes occurring in autumn and winter due to the difference in the timing of the moult (Scott and Rose 1996). The return spring migration begins in late-February (Kear ...
Ten years have passed since the first edition of this book. During that time the field of bird migration has experienced many advances which are reflected in this second edition. No other book exists to bring together the vast amount of information currently available on the subject of bird migration. Includes discussion of evolution and history of bird migration, physiology, orientation mechanisms and threats to migrations and is accessible to experts as well as amateurs.
Ten years have passed since the first edition of this book. During that time the field of bird migration has experienced many advances which are reflected in this second edition. No other book exists to bring together the vast amount of information currently available on the subject of bird migration. Includes discussion of evolution and history of bird migration, physiology, orientation mechanisms and threats to migrations and is accessible to experts as well as amateurs.
Brett Smith for redOrbit.com - Your Universe Online. Scientists have been seeing some bird species migrate earlier and earlier each year and now a team of UK and Icelandic researchers has shown that warming temperatures are behind the creeping back of this instinctive behavior, according to their report in Proceedings of the Royal Society B.. We have known that birds are migrating earlier and earlier each year - particularly those that migrate over shorter distances, said report author Jenny Gill, a biologist from the University of East Anglia in the UK. But the reason why has puzzled bird experts for years. Its a particularly important question because the species which are not migrating earlier are declining in numbers.. The study focused on a population of Icelandic black-tailed godwits that advanced their spring arrival date by two weeks over the span of 20 years. Black-tailed godwits are large shorebirds that have a sporadic breeding range that extends from Iceland to Russia. The birds ...
The monarch butterfly is sometimes called the milkweed butterfly because its ... http://www.zoomschool.com/subjects/butterfly/species/Monarch.shtml ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 6fd80-NTUxN
The rise of the internet coupled with technological innovations such as smartphones have generated massive volumes of geo-referenced data (big data) on human mobility. This has allowed the number of studies of human mobility to rapidly overtake those of animal movement. Today, telemetry studies of animals are also approaching big data status. Here, we review recent advances in studies of human mobility and identify the opportunities they present for advancing our understanding of animal movement. We describe key analytical techniques, potential bottlenecks and a roadmap for progress towards a synthesis of movement patterns of wild animals.
Many people enjoy Autumn as their favorite season of the year. Temperatures are comfortable, most pesky insects are absent, animal migrations are evident, and beautiful Fall colors on the trees and shrubs are stunning. But why do these deciduous plants change color? Consider daylight, temperature, and chemistry.. Spring and summer growth and leaf production are due to photosynthesis, a process where plants use light to synthesize the cells chlorophyll into transforming carbon dioxide and water to carbohydrates such as sugars and starch. The cells containing chlorophyll also give the plant its green color. But there are other pigments, besides green, within the leaves all year. Xanthophyll produces orange and yellow colors, anthocyanin develops shades of red. When daylight decreases and temperatures drop in the North, the leaves stop their food-making and the green chlorophyll breaks down, leaving the other pigments to dominate the new Autumn colors.. Soon after these vivid colors appear, the ...
Remote sensing is observing and measuring our environment from a distance. So, remote sensing satellites are usually put into space to monitor resources important for humans. For example, remote sensing satellites might track animal migration, locate mineral deposits, watch agricultural crops for weather damage, or see how fast the forests are being cut down. All of these things can be done best from space because a satellite in orbit can normally take photographs of large expanses of land all over the world. Since these satellites are able to take photographs and observe areas all over the globe, the satellite is able to monitor areas in which the climate is very harsh, or which are nearly impossible tor reach by land.. Canadas main remote sensing satellite, Radarsat, does just that. ...
Oberhauser, K.S., O. R. Taylor, S. M. Reppert, H. Dingle, K. R. Nail, R. M. Pyle, C. Stenoien. 2013. Are monarch butterflies true navigators? The jury is still out. PNAS 110(39):E3680.. Diffendorfer J.E., Loomis J.B., Ries L., Oberhauser K.S., Lopez-Hoffman L., Semmens D., Semmens B., Butterfield B., Bagstad K., Goldstein J., Wiederholt R., Mattsson B., Thogmartin W.E. 2013. National valuation of monarch butterflies indicates an untapped potential for incentive-based conservation. Conservation Letters. DOI: 10.1111/conl.12065.. Zipkin, E., L. Ries, R. Reeves, J. Reetz, K.S. Oberhauser. 2012. Tracking climate impacts on the migratory monarch butterfly. Global Change Biology 18:3039-3049. Pleasants, J., K.S. Oberhauser. 2012. Milkweed loss in agricultural fields because of herbicide use: Effect on the monarch butterfly population. Insect Conservation and Diversity. DOI:10.1111/j.1752-4598.2012.00196.x. Oberhauser, K.S., G. Lebuhn. 2012 . Insects and plants: Engaging undergraduates in authentic ...
Eventually, the mother an calf must travel back to colder climates in order to feed. The wintering waters are safe for giving birth, but that is because there is so little food, and thus very few predators. All Gray Whales migrate, and they actually take part in one of the greatest animal migrations in the world, travelling as far as 12,500 miles (20,000km) round trip each year. Females and calves are the first to leave the warm winter waters, destined for the nutrient rich seas of the north. But the trip is not easy! Not only is the swim difficult for the calves due to its distance, it is also incredibly dangerous thanks to all the predators (like Killer Whales) that are out to get them ...
i) Cost-benefit analysis. The Fish and Wildlife Service (Service) has determined that the expected welfare benefit of the annual migratory bird hunting frameworks ranges from $734 million to $1.064 billion, with a mid-point estimate of $899 million. The benefit estimate is based on an analysis from 2004. The Service updated the 2004 analysis with respect to duck hunting and determined that the total consumer surplus of the annual duck hunting frameworks is on the order of $220 to $360 million, with a mid-point estimate of $291 million.. (ii) Agency actions relevant to the Regulatory Flexibility Act, 5 U.S.C. sections 603-605, 607, and 609. The Service determined that the regulations will have a significant impact on a substantial number of small entities under the Regulatory Flexibility Act. The Service issued a Small Entity Flexibility Analysis (Analysis) to comply with the requirements of the Act. The Analysis as relates to all migratory bird hunting was last updated in 2004. The 2004 Analysis ...
Animal Migration. 2 (1). doi:10.2478/ami-2014-0001.. *^ Klots, Alexander B. (1951). A Field Guide to the Butterflies of North ... "Monarch Migration". Monarch Joint Venture. 2013.. *^ a b c d e f g h i j k l m n "Petition to protect the Monarch butterfly ( ... Migration[edit]. Further information: Monarch butterfly migration. In North America, monarchs migrate both north and south on ... Brower, Lincoln P.; Malcolm, Stephen B. (1991). "Animal Migrations: Endangered Phenomena". Am. Zool. 31 (1): 265-276. doi: ...
Hobson, Keith; Wassenaar, Leonard (2008). Tracking Animal Migration with Stable Isotopes. Academic Press. ISBN 978-0-12-373867- ... Migration conditioning[edit]. It has been possible to teach a migration route to a flock of birds, for example in re- ... Long-distance migration[edit]. The typical image of migration is of northern landbirds, such as swallows (Hirundinidae) and ... This is an example of leap-frog migration.[24] Many fully migratory species show leap-frog migration (birds that nest at higher ...
5". Animal Migration: Orientation and Navigation. New York: Academic Press. ISBN 978-0-12-277750-9.. CS1 maint: Multiple names ... Effect on animals[edit]. Scientists are still studying whether or not animals are affected by this, some suggesting this is why ... "Scientist studies whether solar storms cause animal beachings".. *^ McGrath, Matt (5 September 2017). "Northern lights link to ... 42] [43]Some have stated the possibility that other migrating animals including birds and honey bees, might be affected since ...
ISBN 978-0-472-10100-9. Lockyer, C. J. H.; Brown, S. G. (1981). "The Migration of Whales". In Aidley, D. (ed.). Animal ... Surface-living animals (such as sea otters) need the opposite, and free-swimming animals living in open waters (such as ... They include animals such as seals, whales, manatees, sea otters and polar bears. They are an informal group, unified only by ... Wild killer whales may travel up to 100 miles (160 km) in a day, and critics say the animals are too big and intelligent to be ...
Animal Migration. London: Natural History Museum. p. 107. ISBN 978-0-565-09243-6. Hoare, Ben (2009). Animal Migration. London: ... around each animal. In the "zone of repulsion", very close to the animal, the focal animal will seek to distance itself from ... In the outermost "zone of attraction", which extends as far away from the focal animal as it is able to sense, the focal animal ... SPP models predict that swarming animals share certain properties at the group level, regardless of the type of animals in the ...
During the spring migration smaller herds will group together to form larger herds of 50,000 to 500,000 animals, but during ... Hoare, Ben (2009). Animal Migration. London: Natural History Museum. p. 45. ISBN 978-0-565-09243-6. Arctic Reindeer Go Off the ... Infections create an effect known as culling: infected migrating animals are less likely to complete the migration. Normally ... The migrations of Porcupine caribou herds are among the longest of any mammal. Barren-ground caribou are also found in Kitaa in ...
Lockyer, C. J. H.; Brown, S. G. (1981). "The Migration of Whales". In Aidley, D. (ed.). Animal Migration. CUP Archive. p. 111. ... This migration cycle is repeated annually. The gray whale has the longest recorded migration of any mammal, with one traveling ... Migration to warmer waters may also reduce the risk of calves being predated on by killer whales. Migratory movements may also ... These animals rely on their baleen plates to sieve plankton and other small organisms from the water. The term "baleen" (Middle ...
Animal Migration. London: Natural History Museum. p. 107. ISBN 978-0-565-09243-6. Hoare, Ben (2009). Animal Migration. London: ... the young animal starts migrating towards the surface in a migration known as developmental ascent. The next two larval stages ... However, the animal's compound eyes do not shrink, and so the ratio between eye size and body length has thus been found to be ... It is a key species in the Antarctic ecosystem and in terms of biomass, is one of the most abundant animal species on the ...
... orientation cues for animal migrations, and influence the biomechanics and size of animals. Ecological traits, such as ... Animal migration is set apart from other kinds of movement because it involves the seasonal departure and return of individuals ... Nebel, S. (2010). "Animal migration". Nature Education Knowledge. 10 (1): 29. Archived from the original on 16 July 2011. Clark ... Wilcove, D. S.; Wikelski, M. (2008). "Going, going, gone: Is animal migration disappearing". PLOS Biology. 6 (7): e188. doi: ...
He promotes veganism and animal rights (see his book A Plea for the Animals, 2016). Ricard, Matthieu (1969). Animal Migration ... A Plea for the Animals' Is A Must Read: A Wonderful Celebration Of World Animal Day 2016". Official website Ricard's English- ... Ricard, Matthieu (2016). A Plea for the Animals: The Moral, Philosophical, and Evolutionary Imperative to Treat All Beings with ... Ricard, Matthieu; Gruhl, Jason; Hall, Becca (2020). Our Animal Neighbors. New York City: Shambhala. Dilgo Khyentse Rinpoche ( ...
ISBN 0-8047-2013-4 Brower, Lincoln P.; Malcolm, Stephen B. (1991). "Animal Migrations: Endangered Phenomena". Am. Zool. 31 (1 ... During the fall migration, butterflies must have access to nectar-producing plants. During the spring migration, butterflies ... Animal Migration. 2 (1). doi:10.2478/ami-2014-0001. Klots, Alexander B. (1951). A Field Guide to the Butterflies of North ... to Conserve the Monarch Butterfly Migration Monarch migration maps Monarch Watch PBS Nova documentary "The Incredible Journey ...
"Longest Animal Migration Measured, Bird Flies 40,000 Miles a Year".. *^ Bretagnolle, Vincent; Attié, Carole; Pasquet, Eric ( ... which would give them the longest animal migration ever recorded electronically.[2] Short-tailed shearwaters perform an even ... longer "figure of eight" loop migration in the Pacific Ocean from Tasmania to as far north as the Arctic Ocean off northwest ...
Infections create an effect known as culling: infected migrating animals are less likely to complete the migration.[97] ... Hoare, Ben (2009). Animal Migration. London: Natural History Museum. p. 45. ISBN 978-0-565-09243-6. .. ... During the spring migration smaller herds will group together to form larger herds of 50,000 to 500,000 animals, but during ... Social structure, migration and rangeEdit. The size of the antlers plays a significant role in establishing the hierarchy in ...
... orientation cues for animal migrations, and influence the biomechanics and size of animals.[109] Ecological traits, such as ... See also: Animal migration. The concept of metapopulations was defined in 1969[55] as "a population of populations which go ... Animal migration is set apart from other kinds of movement; because, it involves the seasonal departure and return of ... "Animal migration". Nature Education Knowledge. 10 (1): 29.. *^ Clark, J. S.; Fastie, C.; Hurtt, G.; Jackson, S. T.; Johnson, C ...
Norris, K. S. (1967). "Some observations on the migration and orientation of marine mammals". In Storm, R. M. (ed.). Animal ... For many baleen whales, such as humpback and gray whales, a general migration pattern can be defined as to-and-fro migration ... The mechanism behind modern whale migration is debated. Migration may function to reduce parasitism, pathogens, and competition ... Based upon the number of layers in the earwax, the animal's age was determined to be seven years. In 1984, whalers caught a ...
5". Animal Migration: Orientation and Navigation. New York: Academic Press. ISBN 978-0-12-277750-9.CS1 maint: multiple names: ... Some have speculated that migrating animals which use magnetoreception to navigate, such as birds and honey bees, might also be ... Scientists are still studying whether or not animals are affected, some suggesting solar storms induce whales to beach ... "Scientist studies whether solar storms cause animal beachings". McGrath, Matt (5 September 2017). "Northern lights link to ...
Bertin, Léon; Berlioz, Jacques; Chopard, Lucien (1942). "Les Migrations animales" [Animal Migration]. L'Avenir de la Science. ... migrations, métamorphoses... [Eels: Variation, growth, euryhalinity, toxicity, juvenile hermaphrodism and sexuality, migrations ... Paris: Gallimard (17). CS1 maint: discouraged parameter (link) Bertin, Léon (1949). La Vie des animaux [Life of Animals] (in ... Bertin, Léon (1950). La Vie des animaux [Life of Animals] (in French). IId. Paris: Larousse. Bertin, Léon (1950). "5. ...
Baker, R.R. (1978). The Evolutionary Ecology of Animal Migration. London: Hodder & Stoughton.[page needed] Witt, Christopher C ... Natal philopatry commonly refers to the return to the area the animal was born in, or to animals remaining in their natal ... although in recent years the term has been applied to more than just the animal's birthplace. Recent usage refers to animals ... Animals that spend much of their time at sea, but which return to land to breed exhibit high levels of natal philopatry and ...
Animal Migration: Where's that gnu gnoing?. HowStuffWorks. Retrieved 2016-01-28. Addiction: Why you can't kick SYSK. ... Are zoos good or bad for animals?. HowStuffWorks. Retrieved 2016-01-25. How Tourette Syndrome Works. HowStuffWorks. Retrieved ...
... s are also useful to record animal migrations.[9] Camera traps have revolutionized wildlife research and ... Sound recording is another feature that can be added to the camera to record animal calls and times when specific animals are ... One other method of animal tampering involves the animals themselves taking the cameras for their own uses. There are examples ... "A-Z Animal Index". Smithsonian Wild. Smithsonian. Retrieved 29 November 2011.. *^ Blake, J. G.; Guerra, J.; Mosquera, D.; ...
A significant consequence of fragmentation and lack of linked protected areas is the reduction of animal migration on a global ... Wilcove, David S; Wikelski, Martin (2008). "Going, Going, Gone: Is Animal Migration Disappearing". PLOS Biology. 6 (7): e188. ... The last word in ignorance is the man who says of an animal or plant: "What good is it?" If the land mechanism as a whole is ... Some animals, such as amphibians with their semi-permeable skin and linkages to wetlands, have an acute sensitivity to ...
Habitat Animal migration Habit (psychology) Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and ... "Disease May Help Shape Animals' Migration Habits". Retrieved 17 May 2013. The Columbia Encyclopedia, Sixth Edition. 2001-05 ... Animal structure is described by its body plan, which encompasses the body symmetry, the type of germ layers and of body ... The habits of plants and animals often change in response to changes in their environment. For example: if a species develops a ...
ISBN 978-0-521-33669-7. Ben Hoare (2009). "Red crab". Animal Migration: Remarkable Journeys in the Wild. University of ... Some species of terrestrial crabs can be found many kilometres from the sea, but have to complete annual migrations to the sea ... an Ecophysiological Approach to the Origins of Land Animals. Cambridge studies in ecology. Cambridge University Press. pp. 201- ...
Hoare, B. (2009). Animal Migration: Remarkable Journeys in the Wild. University of California Press. pp. 58-59. ISBN 978-0-520- ... Annual Review of Animal Biosciences. 3 (1): 139-167. doi:10.1146/annurev-animal-022114-110838. PMID 25493538. Meyer, Matthias ( ... Unlike many other animals, the heart rate speeds up by 8 to 10 beats per minute when the elephant is lying down. The blood ... The animal's sense of smell may be four times as sensitive as that of a bloodhound. The trunk's ability to make powerful ...
"War in Syria prevents bird migration - ANIMALS". Boehm, Christiane; Bowden, Christopher G.R.; Jordan, Mike J.R., eds. ( ... A trial migration using tagged birds confirmed the risks presented to travelling birds by pesticides. Later on the Syrian Civil ... Following the end of the breeding season, the birds are taken into cages in late July or early August to prevent migration. ... In order to prepare birds for release, groups of chicks should be hand-reared by human "parents". Migration routes and stop- ...
Baker, R.R. (1978). The Evolutionary Ecology of Animal Migration. London: Hodder & Stoughton.. [page needed] ... Natal philopatry commonly refers to the return to the area the animal was born in, or to animals remaining in their natal ... migration, parental care, resources, etc.. In most species of animals, individuals will benefit from living in groups,[4] ... although in recent years the term has been applied to more than just the animal's birthplace. Recent usage refers to animals ...
Vol 3, 1876/1877, S. 372-400, S. 539-543, (online). [Geographical range and migration of plants and animals]. In: Transactions ...
Kennell, Joanne (January 11, 2016). "World's Largest Animal Migration Captured in New Documentary". The Science Explorer. ... "Think Like An Animal". CBC/Radio-Canada. Archived from the original on 2016-10-23. Retrieved 2016-10-23. "I Got Rhythm: The ... Animal Welfare Institute. Retrieved 2017-02-02. "TV Schedule". The Citizen. Prince George, British Columbia. November 16, 1983 ...
They can increase migration of animals and connection between them and humans. This can facilitate the transmission of viruses ... Displacement/migration[edit]. See also: Environmental migrant. Climate change causes displacement of people in several ways, ... The types of farm animals, as well as the food they supply can be put into two categories: monogastric and ruminant. Typically ... This is due to the fact that these types of animals have a higher feed-conversion efficiency, and also do not produce any ...
The local fishermen harvest the animals during this migration. In 2002, the total production of Chinese mitten crabs in ...
Advances in the fields of molecular biology and genetics, as well as the use of animal models have been of great importance in ... Duke BJ, Mouchantat RA, Ketch LL, Winston KR (July 1996). "Transcranial migration of microfixation plates and screws. Case ... expanding our knowledge of suture fusion.[3] Research in animal models has led to the idea that the dura mater plays an ...
Elton CS (1927) Animal Ecology. Republished 2001. University of Chicago Press. *^ Allee, W. C. (1932). Animal life and social ... Population structure, migration rates, and environmental refuge for prey are other possible causes for pyramids with biomass ... Journal of Animal Ecology. 78: 253-269. doi:10.1111/j.1365-2656.2008.01460.x. Archived from the original (PDF) on 2011-09-16.. ... One of the earliest descriptions of a food chain was described by a medieval Afro-Arab scholar named Al-Jahiz: "All animals, in ...
... s are a family of proteins found in complexes with cadherin cell adhesion molecules of animal cells. The first two ... Any changes in cytoskeletal organization and adhesion can lead to altered signaling, migration and a loss of contact inhibition ...
J. Sprent: Migration and Lifespan of Circulating B-Lymphocytes of Nude (nu/nu) Mice. In: Proc. First Intern. Workshop Nude Mice ... Laboratory Animals: Origin of Nude Mouse. In: Nature 224/1969, S. 114-5. ...
... animal matter and 62.4% plant matter, most notably the grass Echinochloa crus-galli, and nonlaying females ate 37.0% animal ... Prins, Herbert H. T.; Namgail, Tsewang (6 April 2017). Bird Migration across the Himalayas: Wetland Functioning amidst ... eat water plants and small animals, and are social animals preferring to congregate in groups or flocks of varying sizes. This ... "Animal Diversity Web. Archived from the original on 13 March 2016. Retrieved 19 June 2017.. ...
Upper Paleolithic cultures were probably able to time the migration of game animals such as wild horses and deer.[47] This ... The third chimpanzee: the evolution and future of the human animal.. *^ a b Sharman Apt Russell (2006). Hunger an unnatural ... Recent research indicates that the Neanderthals timed their hunts and the migrations of game animals long before the beginning ... and women may have procured small game animals for consumption and assisted men in driving herds of large game animals (such as ...
"Animal Diversity Web. University of Michigan. Retrieved 2013-08-21.. *^ a b c d e f g h Estes, R. D. (2004). The Behavior Guide ... They never made such extensive migrations as the blue wildebeest, but at one time, they crossed the Drakensberg Range, moving ... The animal is placed in the genus Connochaetes and family Bovida] and was first described by the German zoologist Eberhard ... In some animals, the auditory bullae are highly deformed, and in others, the radius and ulna are fused.[13] ...
Martin Walters & Jinny Johnson (2007). The World of Animals. Bath, Somerset: Parragon. ISBN 978-1-4054-9926-2. .. .mw-parser- ... "Can Barnacles unlock the secrets of MH370 and Turtle migration?". Griffith Sciences Impact. 3 August 2015.. ... The geological history of barnacles can be traced back to animals such as Priscansermarinus from the Middle Cambrian (on the ... Inside the carapace, the animal lies on its stomach, with its limbs projecting downwards. Segmentation is usually indistinct, ...
positive regulation of leukocyte migration. • positive regulation of phosphatidylinositol biosynthetic process. • positive ... "Crystal structure of the ZP-N domain of ZP3 reveals the core fold of animal egg coats". Nature. 456 (7222): 653-7. Bibcode: ... "Crystal structure of the ZP-N domain of ZP3 reveals the core fold of animal egg coats". Nature. 456 (7222): 653-7. Bibcode: ...
Weslager, C.A. The Delaware Indian Westward Migration: With the Texts of Two Manuscripts, 1821-22, Responding to General Lewis ... animal teeth, and claws. The women often wore headbands of dyed deer hair or wampum. They painted their skin skirts or ... beating thigh bones on their palms to drive animals to the river, where they could be killed easily. Other methods of hunting ...
Deceased relatives were usually put to rest in the open, where the bodies were eaten by animals and birds. Nowadays, bodies are ... It is considered important for maintaining community ties but under threat from rural-urban migration and greater use of modern ...
Host animals[edit]. Lyme and other deer tick-borne diseases can sometimes be reduced by greatly reducing the deer population on ... that prior to the reforestation that accompanied post-colonial farm abandonment in New England and the wholesale migration into ... Other animals[edit]. Prevention of Lyme disease is an important step in keeping dogs safe in endemic areas. Prevention ... Small Animal Practice. 40 (6): 1103-19. doi:10.1016/j.cvsm.2010.07.011. PMID 20933139.. ...
Humans are thought to be the sole cause as other earlier migrations of animals into North America from Eurasia did not cause ... See also: List of African animals extinct in the Holocene, List of Asian animals extinct in the Holocene, and List of extinct ... Main articles: List of North American animals extinct in the Holocene and List of South American animals extinct in the ... Extinctions in Australia continued from original settlement until today in both plants and animals, whilst many more animals ...
Animals need certain resources to survive, and when these resources become rare during certain parts of the year animals tend ... Models can integrate the dispersal/migration model, the disturbance model, and abundance model. Species distribution models ( ... Banerjee, B. (1976). Variance to mean ratio and the spatial distribution of animals. Birkhäuser Basel. pp. 993-994.. ... Blackith, R. E. (1958). Nearest-Neighbour Distance Measurements for the Estimation of Animal Populations. Ecology. pp. 147-150. ...
... the natives revitalized patches of land and provided fresh shoots to attract food animals. A form of fire-stick farming was ... "Environmental productivity predicts migration, demographic, and linguistic patterns in prehistoric California". Proceedings of ...
Werner, Dietrich, editor (2004). Biological Resources and Migration. Springer. p. 363. ISBN 978-3-540-21470-0.. CS1 maint: ... Lassa virus commonly spreads to humans from other animals, specifically the natal multimammate rat or African rat, also called ... Work on a vaccine is continuing, with multiple approaches showing positive results in animal trials.[23] ... Infection typically occurs by direct or indirect exposure to animal excrement through the respiratory or gastrointestinal ...
Burnt animal bones are often found, they may have been placed on the pyre as food. The marten bones in the grave of Seddin may ... MigrationsEdit. The numerous hoards of the Urnfield culture and the existence of fortified settlements (hill forts) were taken ... Some scholars, among them Wolfgang Kimmig and P. Bosch-Gimpera have postulated a Europe-wide wave of migrations. The so-called ... The Kyffhäuser caves in Thuringia contain headless skeletons and split human and animal bones that have been interpreted as ...
1954). Walam Olum; or, Red Score, the Migration Legend of the Lenni Lenape or Delaware Indians. A new translation, interpreted ... By 1818, he had collected and named more than 250 new species of plants and animals. Slowly, he was rebuilding his collection ... Walam Olum: or, Red Score, The Migration Legend of the Lenni Lenape or Delaware Indians. See Voegelin 1954 ... This included Walam Olum, a purported migration and creation narrative of the Lenape (also known by English speakers as the ...
AnimalsEdit. Wild animalsEdit. Few studies have found evidence of regular incest avoidance in mammals but banded mongooses are ... "Establishment of New Population Centers with Changes in Migration Patterns" (PDF). Journal of Field Ornithology. 51 (2): 168- ... Small animals such as cats and dogs may be sterilized, but in the case of large agricultural animals, such as cattle, culling ... Domestic animalsEdit. Hereditary polycystic kidney disease is prevalent in the Persian cat breed, affecting almost half the ...
International Fund for Animal Welfare. Retrieved 29 August 2015.. *. Viegas, Jennifer (23 February 2010). "Thousands Mourn Dead ... the migration of the nostrils toward the top of the cranium (blowholes), and the modification of the forelimbs into flippers ( ... These animals have very large heads, which can make up as much as 40% of their body mass, and much of the head is the mouth. ... "International Fund for Animal Welfare. Retrieved 29 August 2015.. *. "Aboriginal Subsistence whaling". IWC. Retrieved 29 August ...
"Animal Planet :: Ferocious Crocs". Animal.discovery.com. 2008-09-10. Retrieved March 16, 2010.. ... metabolism and migration". Modern Geology. 16: 203-227.. ... The oldest known animal that may have been an amniote is ... a b Colbert, E.H. & Morales, M. (2001): Colbert's Evolution of the Vertebrates: A History of the Backboned Animals Through Time ... "reptile (animal) :: Behaviour". Britannica.com. Retrieved March 16, 2010.. *^ "Reptile and Amphibian Defense Systems". ...
Part I: Origins and early migrations". Journal of Ancient History and Archaeology. 4: 6, 16. ISSN 2360-266X.. ... Tattoo ink is made by mixing soot with (breast) milk and the poisonous liquid from the gall bladder of an animal. The design is ... Widely varying in purpose and style, among the Kurdish folklore one will find stories about nature, anthropomorphic animals, ... medallions and animals to other ornaments. They generally have two wefts, and are very colorful in design.[264] With an ...
Commonly during explosions, flames, flocks of animals, and in some panning shots, the high-frequency detail leads to quality ...
Migration[edit]. Adults are capable of flying long distances, so even though they are unable to overwinter north of the ... "Southern and Eastern African countries agree on urgent actions to tackle armyworm and other crop pests and animal diseases". ... Their migration rate is remarkably fast, estimated at 300 miles per generation.[15] Some scientists speculate that this fast ... thus reducing the degree of moth migration. The agriculture drone has a special atomisation spraying mechanism, micron-level ...
In P.W. Price, T.M. Liwinsohn, G.W. Fernandes, and W.W. Benson (eds.), Plant-animal Interactions: Evolutionary Ecology in ...
... often being compared to animals or robots due to their sexuality.[25][9][26] ...
Thompson, Roger (1994). Mobility & Migration, East Anglian Founders of New England, 1629-1640. University of Massachusetts ... Cambridge University Museum of Zoology for the study of animals. *Museum of Classical Archaeology ...
Animal migration. *Animal migration *altitudinal. *tracking. *coded wire tag. *Bird migration *flyways ... SPP models predict that swarming animals share certain properties at the group level, regardless of the type of animals in the ... Examples in natural systems of SI include ant colonies, bird flocking, animal herding, bacterial growth, fish schooling and ...
Ingold, T. (2000). "Building, dwelling, living: how animals and people make themselves at home in the world". The Perception of ... Individuals likely used these tools primarily to butcher and skin animals and crush bones, but also sometimes to saw and scrape ... bending upright branches as poles and using grasses or animal hide as a screen.[57] Dating to 1.75 mya, it is attributed to ... but had instead recovered mainly other animal remains as well as the Oldowan stone tool industry. The industry had been ...
List of animal species[edit]. Reptiles and amphibians. Various snakes both smooth and viperous, the Iberian endemic mountain ... The Guadarramas is also a migration route for many species of bird including crane and black stork. Endangered species that ... In fact, the animal species inhabiting the Guadarramas represent 45% of the fauna of Spain and 18% of those in Europe as a ... and the more specialized plants and animals native to the higher altitude and mountainous terrain of the Pyrenees and Alps. ...
Migracion animal (es); Жануарлардың қоныс аударуы (kk); migration, migration of animals (en); Animala migrado (eo); миграција ( ... animal migration (en-gb); Migracija (lt); Migracija živali (sl); преселба на животните (mk); migració animal (ca); migração de ... animal migration (en); هجرة الحيوانات (ar); Janwarlardıñ jılıstawı (kk-tr); ઋતુ પ્રવાસ (gu); Migración animal (ast); Миграция ... Media in category "Animal migration". The following 82 files are in this category, out of 82 total. ...
Animal Migration in a Climate of Change is a special four-part series that explores the way environmental change is affecting ... the natural movement of animals all around the world.. In the first programme, The Mexican Wave, the focus is on the Orange ... and the Monarchs migration is in jeopardy. ... Animal Migration in a Climate of Change. World Service ...
Tracking of Arctic terns Sterna paradisaea reveals longest animal migration. Carsten Egevang, Iain J. Stenhouse, Richard A. ... Tracking of Arctic terns Sterna paradisaea reveals longest animal migration. Carsten Egevang, Iain J. Stenhouse, Richard A. ... Tracking of Arctic terns Sterna paradisaea reveals longest animal migration Message Subject (Your Name) has sent you a message ... Tracking of Arctic terns Sterna paradisaea reveals longest animal migration. Carsten Egevang, Iain J. Stenhouse, Richard A. ...
... is one of the most recently introduced algorithms based on the behavior of animal swarm migration. This paper presents an ... 3. Animal Migration Optimization (AMO). Animal migration algorithm can be divided into animal migration process and animal ... Animal Migration Process. During the animal migration process, an animal should obey three rules: avoid collisions with your ... Animals Migration. During the migration process, because of animals hunting, foraging, or drinking in the living area, some ...
X. Li, J. Zhang, and M. Yin, "Animal migration optimization: an optimization algorithm inspired by animal migration behavior," ... An Improved Animal Migration Optimization Algorithm for Clustering Analysis. Mingzhi Ma,1 Qifang Luo,1,2 Yongquan Zhou,1,2 Xin ...
Just before sunrise, this migration is reversed and the animals return to their daytime residence in the dark mesopelagic zone ... Satellite-derived analysis of daily vertical migrations of ocean animals shows that the relative abundance and total biomass of ... Our findings reveal that these animals generally constitute a greater fraction of total plankton abundance in the clear ... at a depth of 200-1,000 m). This daily excursion, referred to as diel vertical migration (DVM), is thought of primarily as an ...
... is the periodic movement of animals between different locations, often across vast distances. This movement is known as ... Animal migration has always been a fascinating topic for me, especially sea animals. It is amazing how much far they travel ... Migration can also depend on the stage an animal has reached in its life cycle. An immature American or European eel, for ... As with most animal migrations today, the impact of our own species must be considered. Unfortunately as most of us are aware, ...
... it may also change the migration patterns of zebras and other wildlife ... Epic Animal Migrations Could Change with Global Warming. When climate changes food security, it may also change the migration ... Hopcraft said the migration study underscores how catastrophic a road would be to the Serengetis animals, forcing them to ... The prevailing theory of migration says that as the availability of food decreases, animals will take more risks to obtain it. ...
Ellie misses her friends, but she makes new ones in school as they study Monarch Butterfly migration and... ... Ellie misses her friends, but she makes new ones in school as they study Monarch Butterfly migration and prepare for the towns ...
Many of the worlds migratory animals are in decline. This essay explores the unique scientific and political challenges of ... Animal migration Is the Subject Area "Animal migration" applicable to this article? Yes. No. ... Animal sexual behavior Is the Subject Area "Animal sexual behavior" applicable to this article? Yes. No. ... Economics of migration Is the Subject Area "Economics of migration" applicable to this article? Yes. No. ...
Animal migration. Cambridge University Press. Baker, R.R. (1978) The Evolutionary Ecology of Animal Migration. Holmes & Meier ... Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis. It is the most ... Dingle, H. (1996) Migration: The Biology of Life on the Move. Oxford University Press. Gauthreaux, S.A. (1980) Animal Migration ... Animal navigation Great American Interchange Human migration Migration (ecology) Dingle, Hugh; Drake, V. Alistair (2007). "What ...
Memorandum of Understanding on the Conservation and Management of Marine Turtles and their Habitats of the Indian Ocean and South-East Asia. ...
Ecology of Animal Migration Conference scheduled on June 29-30, 2021 in June 2021 in Dubai is for the researchers, scientists, ... Ecology of animal migration. Migration in birds. Migration in fish. Migration in insects. Migration in other animals. Tracking ... migration of animals. Irregular (non-cyclical) migrations. Seasonal migration. Circadian migration. Tidal migration ... Ecology of Animal Migration. ICEAM 2021: 15. International Conference on Ecology of Animal Migration June 29-30, 2021 in Dubai ...
Animal migration tracking is used in wildlife biology, conservation biology, ecology, and wildlife management to study animals ... One of the many goals of animal migration research has been to determine where the animals are going; however, researchers also ... "Animal Migration Research, Jeff Kelly Lab". www.animalmigration.org. Retrieved 2017-03-02. Stutchbury, Bridget J. M.; Tarof, ... Migration tracking is a vital tool in efforts to control the impact of human civilization on populations of wild animals, and ...
Mystery in Animal Migration by Bernd Heinrich and The Surprising Lives of Birds and What They Reveal About Being Human by Noah ... It would have been a better book if Heinrich had woven the strands of animal migration with the strands of his days in the camp ... The Homing Instinct: Meaning & Mystery in Animal Migration by Bernd Heinrich and The Surprising Lives of Birds and What They ... You may have noticed that in recent years more and more of these books have focused on the lives of animals. Like the nests of ...
Animal Behavior/Army Ants - Social Hierarchy, Life Cycles, and Migration. From Wikibooks, open books for an open world ... Animal Behavior. The latest reviewed version was checked on 4 October 2017. There is 1 pending change awaiting review. ... Retrieved from "https://en.wikibooks.org/w/index.php?title=Animal_Behavior/Army_Ants_-_Social_Hierarchy,_Life_Cycles,_and_ ...
In their assessment they determined that roads and structures fragment animal populations. This reduces the numbers of animals ... Roads, especially roads with a large amount of traffic can be very dangerous for migrating animals that could get hit by a ... development their ability to migrate will also be negatively impacted since not all animals that perform a migration survive, ... Davis performed an assessment of the impacts of roads on animal population viability. ...
Citation Information: Animal Migration, Volume 2, Issue 1, ISSN (Online) 2084-8838, DOI: https://doi.org/10.1515/ami-2015-0001 ... Migration patterns of San Francisco Bay Area Hermit Thrushes differ across a fine spatial scale by Nelson, Allison R. / Cormier ... Migration strategy predicts stopover ecology in shorebirds on the northern Gulf of Mexico by Henkel, Jessica Renee and Taylor, ... Alternate migration strategies of eastern monarch butterflies revealed by stable isotopes by Zanden, Hannah B. Vander/ Chaffee ...
Day, J. L., Pechman, R. D. and Bahr, R. J. (2012), Migration of a retained surgical swab into the jejunum in a dog. Journal of ... Journal of Small Animal Practice. Volume 53, Issue 12, pages 705-708, December 2012 ... Migration of a retained surgical swab into the jejunum in a dog. ... Veterinary Medicine - Small Animal General , *Journal of Small ... Small Animal Practice, 53: 705-708. doi: 10.1111/j.1748-5827.2012.01286.x ...
... I would like to subscribe to Science X Newsletter. ... Stars (n=33) indicate migration endpoints and incomplete migrations (n=2) are denoted by black crosses. Animation timing has ... However, the details of how sea turtles, and other groups such as seals and whales, navigate during long migrations remains an ... Animated tracks of 35 green turtle migrations tracked from nesting beaches in the Chagos Archipelago (Indian Ocean). The year ...
Imaging capillary migration of tumor cells in live animals. Kensuki Yamauchi, Norio Yamamoto, Meng Yang, Ping Jiang, Mingxu Xu ... Imaging capillary migration of tumor cells in live animals. Kensuki Yamauchi, Norio Yamamoto, Meng Yang, Ping Jiang, Mingxu Xu ... Imaging capillary migration of tumor cells in live animals. Kensuki Yamauchi, Norio Yamamoto, Meng Yang, Ping Jiang, Mingxu Xu ... Imaging capillary migration of tumor cells in live animals Message Subject (Your Name) has forwarded a page to you from Cancer ...
Animal migrations greatly vary in the distance travelled, from short trips as in the case of altitudinal migration (i.e. from ... Migration is a common and critical behavioural adaptation for survival that has evolved in many animal taxa ranging from ... Migration is a complex behavioural adaptation for survival that has evolved across the animal kingdom from invertebrates to ... 2012). Satellite Telemetry and its impact on the study of animal migration. Nat. Educ. Knowl. 3, 4. ...
The long-term conservation of these animals depends on the actions of landowners and other stakeholders far beyond the national ... However, major challenges await migratory animals as they leave Yellowstone National Park. ... The Greater Yellowstone Ecosystem lies in the path of some of the most significant wildlife migration routes on the planet. ... and original artwork to explore the compelling story behind some of the most amazing animal migrations on the planet. ...
Migratory niche shifts and metamorphic events are extreme examples of the role of hormones in animal performance and represent ... The endocrine control of performance should be especially pronounced in animals that undergo a developmental shift in niche, ... and is likely to be involved in altering the performance of animals when selection has favored phenotypic plasticity. ... Evolution of the hormonal control of animal performance: insights from the seaward migration of salmon. Series title:. ...
Large ungulate migrations occur across continents and inspire curiosity about how these animals know when to leave and where to ... Animal migrations arise through a combination of learned behavior and genetically inherited neurological, morphological, ... Is ungulate migration culturally transmitted? Evidence of social learning from translocated animals ... Is ungulate migration culturally transmitted? Evidence of social learning from translocated animals ...
Both habitat use and migration routes were best recreated using SSM locations post-processed by re-adding good Argos positions ... The Argos telemetry system has been extensively used to remotely track marine animals, however location estimates are ... especially for animals exhibiting restricted movements. Post-processing SSM locations nonetheless constitutes the best ... Accurately quantifying animals spatial utilisation is critical for conservation, but has long remained an elusive goal due to ...
Small-Animal PET with 18F-FDG and 124I in Inflammation Animal Model. The animal experimental procedure is demonstrated ... Small-Animal PET of Macrophage Migration to Inflammation Site. As shown in Figure 4A, turpentine oil was administered ... Trafficking Macrophage Migration Using Reporter Gene Imaging with Human Sodium Iodide Symporter in Animal Models of ... Trafficking Macrophage Migration Using Reporter Gene Imaging with Human Sodium Iodide Symporter in Animal Models of ...
Tooth enamel can reveal a pattern of migration by tracking changing levels of carbon from the plants an animal eats as its ... Be the first to comment on "Garden of Eden for Ancient Humans and Animals Revealed by Migration Patterns". ... Garden of Eden for Ancient Humans and Animals Revealed by Migration Patterns TOPICS:AgricultureAnthropologyPaleontology ... "It is quite possible that animal migration patterns changed as the coastline moved in and out during glacial and interglacial ...
Animal Migration Facts. Barriers to Fish Migration (NOAA). Migrations in Motion Map (TNC). Whale Migration Game (NOAA). Worlds ... These datasets show the migration patterns of seals and seabirds based on animal GPS tracking. ... These datasets show the migration patterns of seals and seabirds based on animal GPS tracking. ... These datasets show the migration patterns of seals and seabirds based on animal GPS tracking. ...
Find out information about Animal Migration. the movement of animals to different locations. It occurs as a result of changes ... in the animals habitats or is associated with their developmental cycles.... Explanation of Animal Migration ... Related to Animal Migration: Bird migration, Human migration Migration, Animal. the movement of animals to different locations ... Animal migrations are dynamic phenomena that vary over space and. Animal migration as a moving target for conservation: intra- ...
  • Animal migration optimization (AMO) is one of the most recently introduced algorithms based on the behavior of animal swarm migration. (hindawi.com)
  • Is the Subject Area "Animal sexual behavior" applicable to this article? (plos.org)
  • Animal migration tracking is used in wildlife biology, conservation biology, ecology, and wildlife management to study animals' behavior in the wild. (wikipedia.org)
  • We report a field observation of daytime sleeping behavior in a Black-andwhite Warbler (Mniotilta varia) during spring migration. (degruyter.com)
  • Zoology is the study of animals and animal behavior. (pbs.org)
  • The article is called Animal Behavior and is located at https://www.naturefootage.com/stock-footage/animal-behavior-footage. (naturefootage.com)
  • NatureFootage has one of the most comprehensive collections of animal behavior out there. (naturefootage.com)
  • Whether you're looking for funny animal videos or just stock footage of unique behavioral displays such as mating, fighting, hunting or parental care, chances are you'll find it in the Animal Behavior collection. (naturefootage.com)
  • This exercise is designed to familiarize the student with ethology, the study of animal behavior, by observing the behavior of several different arthropods. (nottingham.ac.uk)
  • A map showing the migration routes of various species of bird, including the Arctic tern which travels from one end of the world of the other every year. (hubpages.com)
  • In long lived species, individuals make repeated annual migrations throughout their lives once they are sexually mature. (hubpages.com)
  • In short lived species, such as the monarch butterfly, which produce several generations within a season, the migration therefore, is undertaken by a succession of different individuals as the butterflies breed along the route. (hubpages.com)
  • Migration can take very different forms in different species, and as such there is no simple accepted definition of migration. (wikipedia.org)
  • Seasonal migration is the movement of various species from one habitat to another during the year. (wikipedia.org)
  • Researchers not only look at the animals' migration but also what is between the migration endpoints to determine if a species is moving to new locations based on food density, a change in water temperature, or other stimulus, and the animal's ability to adapt to these changes. (wikipedia.org)
  • Migration tracking is a vital tool in efforts to control the impact of human civilization on populations of wild animals, and prevent or mitigate the ongoing extinction of endangered species. (wikipedia.org)
  • Passive integrated transponders (PIT) are another method of telemetry used to track the movements of a species Passive integrated transponders, or "PIT tags", are electronic tags that allow researchers to collect data from a specimen without the need to recapture and handle the animal. (wikipedia.org)
  • In some taxa, closely related migratory species, or even populations of the same species, exhibit different migratory phenotypes, including timing and orientation of migration. (biologists.org)
  • We also outline a vision of how technical advances and integrative approaches could be employed to identify and functionally validate candidate genes and cis -regulatory elements on these and other migratory species across both small and broad phylogenetic scales to significantly advance the field of genetics of animal migration. (biologists.org)
  • The endocrine control of performance should be especially pronounced in animals that undergo a developmental shift in niche, such as occurs in migratory species. (usgs.gov)
  • took advantage of regional extinctions and reintroductions of several North American ungulate species to determine the role of learning in migrations (see the Perspective by Festa-Bianchet). (sciencemag.org)
  • The second type ensures distribution of a species and may occur in the larval stage (in such sessile animals as ascidians, corals, and sponges) or during sexual maturation (in most animals). (thefreedictionary.com)
  • Some species of bats make seasonal migrations extending 1,500 km or greater. (thefreedictionary.com)
  • Annual migrations of several kilometers to wintering places are characteristic of many species of snakes. (thefreedictionary.com)
  • In short, it is the first discovery of some important geological event characterized by a change in the kinds of species and populations of plant and animal fossils. (encyclopedia.com)
  • With the emergence of the Panamanian land bridge between the two Americas, a great migration, or swapping of animal species, began. (encyclopedia.com)
  • The truth about migration is probably a mix of the two, and it probably differs by species. (howstuffworks.com)
  • Global warming also has the potential to change the natality rate amongst animal species by disrupting breeding patterns. (greenandcleanmom.org)
  • Since global warming has the potential to radically alter a habitat, it could result in more animals dying, fewer breeding, and a lot of endangered species. (greenandcleanmom.org)
  • Under the Endangered Species Act (ESA), plant and animal species may be listed as either endangered or threatened. (usgs.gov)
  • Between our Baltimore and Washington, DC, venues, more than 17,500 animals representing 900 species call the National Aquarium home. (aqua.org)
  • Many species undertake long-distance annual migrations between foraging and reproductive areas. (nih.gov)
  • Northward migration of forest and animal species. (thestar.com)
  • Many species in the sea have a daily migration. (wikipedia.org)
  • The rapid, low-cost technique is the first to analyze DNA left behind in animals' feces to map out complex networks of species interactions in a terrestrial system. (stanford.edu)
  • However, a number of infections tree species, particularly eucalypts, has been speculatively in humans and animals with no travel to C. gattii- endem- linked to its dispersal ( 6,9-11 ), no evidence for this has ic areas were recently confirmed on the BC mainland and been found in BC. (cdc.gov)
  • A geographical list of animals breaks species down into areas, both land and water. (abebooks.com)
  • The entries cover a wide variety of topics related to animal life and include articles on subjects such as biodiversity and defense mechanisms as well as those on specific species or individual animals. (abebooks.com)
  • During migration, a number of bird species rely on stopover sites for resting and feeding before and after crossing ecological barriers such as deserts or seas. (biomedsearch.com)
  • By observing the surrounding countryside in your region, birds present in remnant habitats, parks, and gardens, and researching the species that once lived in your area or passed through during migration, you can discover what species of birds are likely to be attracted to your garden. (timberpress.com)
  • But what compels an animal to migrate in the first place? (hubpages.com)
  • So, we know why animals migrate, but how do they know when the time to migrate has arrived? (hubpages.com)
  • Many animals have an innate, near annual rhythm that tells them when to migrate. (hubpages.com)
  • Migration can be either obligate, meaning individuals must migrate, or facultative, meaning individuals can "choose" to migrate or not. (wikipedia.org)
  • Complete migration is when all individuals migrate, partial migration is when some individuals migrate while others do not, and differential migration is when the difference between migratory and non-migratory individuals is based on age or sex (for example). (wikipedia.org)
  • In circadian migration clocks of both circadian (daily) and circannual (annual) patterns are utilized to determine the birds' orientation in both time and space as they migrate from one destination to the next. (wikipedia.org)
  • If their numbers and health are reduced because of infrastructure development their ability to migrate will also be negatively impacted since not all animals that perform a migration survive, the numbers of mature animals could be reduced. (greenanswers.com)
  • Going into this, what we expected was that white sharks were just coastal animals that breed in Southern California, then migrate a few hundred miles north to feed on seals. (weather.com)
  • A new study, published Thursday in the journal Science , suggests that those hunches may be correct-some animals must learn how to migrate. (nationalgeographic.com)
  • And if that's the case, he says, the animals that have been moved shouldn't migrate, because they wouldn't yet have learned a new migration route. (nationalgeographic.com)
  • In fact, they only migrate a little less than four miles over a migration period of two to three weeks, but they migrate, nonetheless. (kerdowney.com)
  • Some 1.5 million animals migrate between Kenya and Tanzania each year, and at all stops along the route, there's something incredible to see - from calving season and great predator activity to thrilling Mara River crossings, the Great Migration promises an exceptional safari each year. (kerdowney.com)
  • During her PhD, Alice Risely examined some of the mechanisms that are assumed to underpin this relationship, including whether animals can migrate effectively when infected, and how susceptible they are to microorganisms during migration. (birding-aus.org)
  • FREE worksheet to sort between animals who hibernate and migrate. (pinterest.com)
  • The first camp suggests that animals first lived where it was warm all year long, and they didn't need to migrate. (howstuffworks.com)
  • Critically, the role of migrants may be complicated by the infection process itself, as animals must become infected prior to departure and be able to migrate successfully whilst infected in order to transport a parasite from one location to another. (cie-deakin.com)
  • What animals migrate during the Winter? (thenaturalhomeschool.com)
  • Most adult Atlantic salmon migrate up the rivers of New England beginning in spring and continuing through the fall as well, with the migration peaking in June. (usgs.gov)
  • The two overpasses and three underpasses are designed to reduce the chance of collisions caused as deer and other large animals migrate across U.S. 93. (arc-solutions.org)
  • Animals too migrate to escape danger but one group - the pond-living bdelloid rotifers - have taken this game of hide-and-seek to an extreme. (scienceblogs.com)
  • As of January 2018, there are fewer than 9,000 animals estimated to be left in the George River herd, as reported by the Canadian Broadcasting Corporation. (wikipedia.org)
  • [8] The New York Times reported in April 2018 of the disappearance of the only herd of southern mountain caribou in the contiguous United States with an expert calling it "functionally extinct" after the herd's size dwindled to a mere three animals. (wikipedia.org)
  • In their assessment they determined that roads and structures fragment animal populations. (greenanswers.com)
  • faunas , or ecological populations of animals, were severely disrupted or eliminated altogether. (encyclopedia.com)
  • My interests are in population ecology for animals declining in abundance, asking new questions of multiple, combined data sets to gain novel insight into the dynamics of animal populations, and translating science into guidance for practical management decisions. (usgs.gov)
  • As I gained a deeper understanding of the influence that migration has on the fitness and abundance of wild populations, I began to consider the health of monarch butterflies in our gardens, where breeding is observed throughout the year. (amnh.org)
  • Documenting the nature of those pay-offs is both extremely challenging and crucial to understanding the evolution of migration in wild populations. (royalsocietypublishing.org)
  • abstract = "Migration of mandibular periosteum and attached musculature was tracked along the inferior border of the ramus in growing and nongrowing guinea pigs (Cavia porcellus) over a 6-week period. (elsevier.com)
  • When there are great numbers of squirrels, arctic foxes, or lemmings, mass migrations, or irruptions, occur, in which thousands of individuals move en masse in the same direction, overcoming considerable water obstacles along the way. (thefreedictionary.com)
  • These are just 6 of the many astonishing marine spectacles that can be witnessed in person all over North America and in the pages of Vladimir Dinet's Wildlife Spectacles: Mass Migrations, Mating Rituals, and Other Fascinating Animal Behaviors. (timberpress.com)
  • Hays, G. C. A review of the adaptive significance and ecosystem consequences of zooplankton diel vertical migrations. (nature.com)
  • These vertical migrations are also determined by the location of pastures and resting places. (thefreedictionary.com)
  • Migration is a complex behavioural adaptation for survival that has evolved across the animal kingdom from invertebrates to mammals. (biologists.org)
  • Migration is a common and critical behavioural adaptation for survival that has evolved in many animal taxa ranging from invertebrates to mammals. (biologists.org)
  • The graphic above is a model showing how birds, mammals, and amphibians will have to adjust their migration routes in response to climate change. (noaa.gov)
  • Among mammals the most extensive migrations are those of whales, seals, and walrus. (thefreedictionary.com)
  • Marsupials (mammals with no placenta but with a pouch in which their young develop), sloths, and other animals such as glyptodonts, which looked like an armadillo, headed north. (encyclopedia.com)
  • Research with other migratory mammals has shown that generations of animals may stick to the same route corridors, down to the nearest meter. (nationalgeographic.com)
  • Mammals (formally Mammalia ) are a class of vertebrate animals whose females are characterized by the possession of mammary glands while both males and females are characterized by sweat glands, hair, three middle ear bones used in hearing, and a neocortex region in the brain. (phys.org)
  • Entries focus on non-humans from the animal kingdom, from insects to reptiles to mammals. (abebooks.com)
  • It is the most common form of migration in ecology. (wikipedia.org)
  • aims to bring together leading academic scientists, researchers and research scholars to exchange and share their experiences and research results on all aspects of Ecology of Animal Migration. (waset.org)
  • Also, high quality research contributions describing original and unpublished results of conceptual, constructive, empirical, experimental, or theoretical work in all areas of Ecology of Animal Migration are cordially invited for presentation at the conference. (waset.org)
  • ICEAM 2021 has teamed up with the Special Journal Issue on Ecology of Animal Migration . (waset.org)
  • The Road Ecology Center of the John Muir Institute of the Environment at the University of California, Davis performed an assessment of the impacts of roads on animal population viability. (greenanswers.com)
  • I am a quantitative ecologist conducting scholarly research at the intersection of animal ecology, spatial analyses, and statistics. (usgs.gov)
  • The importance of migration in disease ecology is, however, neither well established nor straightforward. (cie-deakin.com)
  • My research interest is focussed on climate change effects on terrestrial Arctic and coastal systems, evolution and ecology of avian migration, demography and population limitation and trophic interactions in High Arctic ecosystems. (nioz.nl)
  • Animal migrations greatly vary in the distance travelled, from short trips as in the case of altitudinal migration (i.e. from lower to higher altitudes and back) to trans-continental migrations. (biologists.org)
  • Shorter migrations are common, including altitudinal migrations on mountains like the Andes and Himalayas . (wikipedia.org)
  • After eliminating alternative hypotheses regarding the causes of altitudinal migration in this community and population [ 7 - 9 ], we showed that residents incur physiological costs of high-elevation storms that limit foraging opportunities, compromising condition [ 10 ]. (royalsocietypublishing.org)
  • Although birds from the same colony took one of two alternative southbound migration routes following the African or South American coast, all returned on a broadly similar, sigmoidal trajectory, crossing from east to west in the Atlantic in the region of the equatorial Intertropical Convergence Zone. (pnas.org)
  • In basic terms migration is the periodic movement of animals to and from different areas, usually along well-defined routes. (hubpages.com)
  • The Greater Yellowstone Ecosystem lies in the path of some of the most significant wildlife migration routes on the planet. (nationalgeographic.org)
  • Regular migrations follow more or less definite routes. (thefreedictionary.com)
  • But in most known cases, young animals learn routes from more experienced individuals, and then internalize the magnetic fields associated with those routes for subsequent trips. (livescience.com)
  • Until now, loggerhead sea turtles have been the only animals confirmed to know ancestral migration routes from the moment they hatch. (livescience.com)
  • But now, researchers based at Oregon State University have found that juvenile Chinook salmon - which hatch in freshwater streams and then swim to the ocean to feed within the first year of their lives - also inherit a sense of direction to their families' migration routes. (livescience.com)
  • However, the details of how sea turtles, and other groups such as seals and whales, navigate during long migrations remains an open question. (phys.org)
  • Animation timing has been adjusted so that turtles from all years depart nesting beaches at the same time and migration duration in days is indicated by the counter in the lower right hand corner of the video frame. (phys.org)
  • The study also showed that turtles frequently struggled to find small islands, overshooting, and/or searching for the island in the final stages of migration. (phys.org)
  • Among reptiles the most extensive migrations are made by sea turtles. (thefreedictionary.com)
  • Around 150 research projects around the globe plan to track the migrations of a wide range of animals, including sea turtles, jaguars, bats and migratory birds. (mpg.de)
  • Scientists taking part in the Icarus-initiative are working together to develop a satellite-based system to observe small animals such as birds, bats and turtles. (mpg.de)
  • It was a busy holiday weekend for our Animal Rescue and Animal Health teams as they triaged 30 sea turtles that stranded on the coast of New England. (aqua.org)
  • Since salmon and sea turtles are so far apart on the evolutionary tree, the new findings suggest that other migratory marine animals likely have this ability as well. (livescience.com)
  • However, there is remarkably few demonstrated dispersal events, which has cast doubt on the role of migratory animals in global disease dispersal. (birding-aus.org)
  • To be counted as a true migration, and not just a local dispersal, the movement should be an annual or seasonal event. (wikipedia.org)
  • Animal Migration in a Climate of Change is a special four-part series that explores the way environmental change is affecting the natural movement of animals all around the world. (bbc.co.uk)
  • Whether or not an animal migrates can depend on local climate. (hubpages.com)
  • If these animals are tracking rainfall patterns, which we know they are, then climate change could mean a fairly substantial change to their migration pattern,' said Grant Hopcraft, a research fellow with the University of Glasgow's Boyd Orr Centre for Population and Ecosystem Health, who led the project. (scientificamerican.com)
  • The trigger for the migration may be local climate, local availability of food, the season of the year or for mating reasons. (wikipedia.org)
  • Animals have migrated for millions of years, however with rapidly changing climate and fracturing and reduction of cold-weather habitat, many are having to change their summering grounds accordingly. (noaa.gov)
  • How might climate change impact bird, fish, and mammal migration? (noaa.gov)
  • The Porcupine caribou and the barren-ground caribou form large herds and undertake lengthy seasonal migrations from birthing grounds to summer and winter feeding grounds in the tundra and taiga. (wikipedia.org)
  • The migrations of Porcupine caribou herds are among the longest of any mammal. (wikipedia.org)
  • Bianchi, D. & Mislan, K. A. S. Global patterns of diel vertical migration times and velocities from acoustics data. (nature.com)
  • Wildebeests and zebras alike went farther out of their way to dodge people than to avoid even animal predators like hyenas or lions-decisions that appear to be profoundly affecting their migration patterns. (scientificamerican.com)
  • Resource availability changes depending on seasonal fluctuations, which influence migration patterns. (wikipedia.org)
  • To regulate the migration patterns of these birds, the mammalian circadian clock is utilized. (wikipedia.org)
  • Animals like lush vegetation, which means they tend to follow the rain patterns: in this case east for summer rain (C4 grasses), and west for winter rain (C3 grasses). (scitechdaily.com)
  • Hodgkins says this is just a first attempt at using isotopic data to test the hypothesis of east and west migration patterns at these sites and further research will be done. (scitechdaily.com)
  • It is quite possible that animal migration patterns changed as the coastline moved in and out during glacial and interglacial cycles," said Hodgkins. (scitechdaily.com)
  • What different patterns do seasonal migrations follow? (noaa.gov)
  • These datasets show the migration patterns of seals and seabirds based on animal GPS tracking. (noaa.gov)
  • Over hundreds of years they have established migratory patterns (to the point that some of the major roadways that humans use to navigate the desert have been created by the animals that walk them year after year). (greenandcleanmom.org)
  • This is also true for birds, who have wide-ranging and well established migration patterns that we are very well aware of. (greenandcleanmom.org)
  • A physiological study of certain migrants has revealed that metabolic patterns usually change prior to migration, and fats accumulate in the body tissues. (britannica.com)
  • Some, such as the woodcock, snipe, lapwing, starling, and lark, rely on surrounding conditions to initiate their spring and autumn migrations, and the patterns of their flight depend on temperature and barometric pressure . (britannica.com)
  • With the help of 40 GPS and cellphone-outfitted animals over the past decade, researchers discovered that herds are willing to avoid food if it means escaping the detection of humans. (scientificamerican.com)
  • The existence of collective information and knowledge, that can be passed from older animals to younger ones, is a form of "culture," researchers explain. (nationalgeographic.com)
  • Researchers track how elk, mule deer, moose, bighorn sheep, and pronghorn use Wyoming and Colorado wilderness areas for incredible migrations over difficult terrain and man-made obstacles. (nationalgeographic.com)
  • Using the system developed by scientists from the Max Planck Society in cooperation with the Russian space agency Roscosmos, the German Aerospace Center and the University of Konstanz, researchers around the world will be able to study the movements of animals and determine the conditions in which they live. (mpg.de)
  • Adding to limited empirical data on the effects of infection on animal migrations, we show that Bewick's swans naturally infected with avian influenza virus delayed departure and traveled shorter distances during spring migration compared to uninfected individuals. (cie-deakin.com)
  • With respect to international migration, the recommendation of the United Nations (and the practice of a number of countries) is to define removal for one year or more as "permanent," and thus as migration, while a stay for a shorter period is classified as a visit. (encyclopedia.com)
  • The Serengeti is the site of what most consider the most dramatic migration , with giant herds of millions of animals-some 750,000 zebras and 1.2 million wildebeests as well as gazelles and eland-traveling from the Ngorongoro area in southern Tanzania to the Masai Mara in lower Kenya and returning as the rains dictate. (nationalgeographic.com)
  • The Nevada Departments of Transportation and Wildlife and the Nevada Highway Patrol are reminding motorists to drive safely in wildlife-prone areas with the upcoming spring animal migration. (arc-solutions.org)
  • Spring deer migration in northeastern Nevada usually begins in early or mid March, depending on weather," Nevada Department of Wildlife Public Information Officer Joe Doucette explained. (arc-solutions.org)
  • This daily excursion, referred to as diel vertical migration (DVM), is thought of primarily as an adaptation to avoid visual predators in the sunlit surface layer 1 , 2 and was first recorded using ship-net hauls nearly 200 years ago 3 . (nature.com)
  • Lampert, W. The adaptive significance of diel vertical migration of zooplankton. (nature.com)
  • Many aquatic animals make a diel vertical migration, travelling a few hundred meters up and down the water column, while some jellyfish make daily horizontal migrations, traveling a few hundred meters across a lake. (wikipedia.org)
  • Jouta J, Dietz MW, Reneerkens J, Rakhimberdiev E, Hallgrimsson GT, Piersma T, Pen I. (2017) Ecological forensics: Using single point stable isotope values to infer seasonal schedules of animals after two diet switches. (nioz.nl)
  • Irregular (non-cyclical) migrations such as irruptions can occur under pressure of famine, overpopulation of a locality, or some more obscure influence. (wikipedia.org)
  • The first type of migration may be regular (seasonal, daily) or irregular (during droughts, fires, floods). (thefreedictionary.com)
  • Irregular migrations and settling in new areas are not directed and are often chaotic. (thefreedictionary.com)
  • Stars (n=33) indicate migration endpoints and incomplete migrations (n=2) are denoted by black crosses. (phys.org)
  • Jeffrey Buler is a researcher at the University of Delaware who also uses radar to study bird migrations. (npr.org)
  • For example, timing of migration can be strongly linked to timing of reproduction, and relatively small effects early in the season can thus ultimately affect the fitness of a bird. (biomedcentral.com)
  • Allen WH (1948) Bird migration and magnetic meridians. (springer.com)
  • Curry-Lindhal K (1981) Bird migration in Africa, vol 2. (springer.com)
  • Bird migration is the regular seasonal movement, usually north and south along a 'flyway', between breeding and wintering grounds. (wikipedia.org)
  • When they aren't chomping on wires, they like to eat endangered animals, such as the black-capped vireo-a bird found in states like Texas. (listverse.com)
  • Barriers and distances as determinants for the evolution of bird migration links: the arctic shorebird system. (biomedsearch.com)
  • Scientists today still attach tags, such as metal bands, to track movement of animals. (wikipedia.org)
  • Scientists can track the locations and movement of the tagged animals without recapturing them using this RFID technology or satellites. (wikipedia.org)
  • Imagine you discovered an animal that scientists have long thought to be extinct! (neefusa.org)
  • Scientists have also documented these migrations during events such as eclipses, full moons and storms. (eurekalert.org)
  • Naidoo says the research team in Namibia-scientists from WWF and Namibia's Ministry of Environment and Tourism-had a suspicion that the zebras were up to something, 'since animals seemed to just show up on the floodplains in Salambala communal conservancy in the dry season, where there are permanent water sources, and then disappear in the wet season. (nationalgeographic.com)
  • Using measurements of naturally occurring stable isotopes to track movements, and behavioural observations to estimate mating success, we examined the costs of migration in white-ruffed manakins ( Corapipo altera ) in northeast Costa Rica. (royalsocietypublishing.org)
  • Well, all migratory animals rely on a series of instinctive triggers, which can include lengthening days as spring arrives, an increase in reproductive hormones and fat deposits, and growing restlessness. (hubpages.com)
  • A comparison between Barnacle Geese equipped with harness-attached tracking devices and individuals fitted with geolocators attached to leg bands showed that birds equipped with tracking devices were only slightly delayed in timing of migration and reproduction and otherwise were not affected in reproductive output. (biomedcentral.com)
  • Here, we test the hypothesis that partial migration results from these costs being countered by reproductive benefits of residency, with migratory decisions dependent upon mating prospects the following year (electronic supplementary material, figure S1). (royalsocietypublishing.org)
  • Both temporal and spatial components of this index are biologically important because the length of time males are absent from leks probably affects both condition-related benefits and future reproductive costs of migration. (royalsocietypublishing.org)
  • While most migratory movements occur on an annual cycle, some daily movements are also referred to as migration. (wikipedia.org)
  • Feeding migrations are movements of fishes to good feeding grounds. (thefreedictionary.com)
  • Author Correction: Longest terrestrial migrations and movements around the world. (nih.gov)
  • The active, or directional, migrations of fishes (spawning, feeding, and wintering) are among the most characteristic features of their life cycle. (thefreedictionary.com)
  • Migrations for spawning are particularly evident in migratory fishes that feed in the sea but enter rivers for reproduction. (thefreedictionary.com)
  • Such anadromous migrations are primarily characteristic of fishes inhabiting the northern hemisphere, for example, the Clupeidae, Salmonidae, and Acipenseridae. (thefreedictionary.com)
  • Freshwater fishes also make short spawning migrations. (thefreedictionary.com)
  • Environmental factors are of primary importance in the migration of fishes and marine invertebrates. (britannica.com)
  • Some participate in migrations with others of their kind, maybe to search for food, raise their young, or throw themselves off a cliff. (researchadministrationdigest.com)
  • And search more of iStock's library of royalty-free stock images that features Animal photos available for quick and easy download. (istockphoto.com)
  • Migration is the travelling of long distances in search of a new habitat . (wikipedia.org)
  • But when Hodgkins and her team used the nonmigratory reedbuck as their control animal, they found that the enamel from its typically migratory pals-like the wildebeest, hartebeest, and springbok-showed no discernible migratory pattern. (scitechdaily.com)
  • But the animals cover more than 300 miles (500 kilometers) in a straight-line, up-and-back journey across Namibia and Botswana. (nationalgeographic.com)
  • Facultative, partially migratory animals provide a contemporary window into the evolution of migration, offering rare opportunities to examine the life-history trade-offs associated with migration. (royalsocietypublishing.org)
  • Blackpoll warblers travel about 2,000 miles on their migration. (weather.com)
  • Every evening, small fish and microscopic animals called zooplankton journey to the ocean surface, where they feast on microscopic plants under the moonlight before returning to the depths at dawn. (eurekalert.org)
  • Throughout the day, when clouds pass overhead, zooplankton make 'mini-migrations' of about 50 feet on average. (eurekalert.org)
  • Based on the frequency of the sound waves, 150 kHz, and the marine animals captured in nets of other concurrent EXPORTs experiments, that something was most likely zooplankton. (eurekalert.org)
  • Large ungulate migrations occur across continents and inspire curiosity about how these animals know when to leave and where to go. (sciencemag.org)
  • Waves of animal migrations occurred on the continents. (encyclopedia.com)
  • These animals respond to the way humans behave. (scientificamerican.com)
  • His earlier work, particularly his intimate descriptions of the lives of the ravens that are his neighbors in the Maine woods, offered just the sort of weaving of human and animal concerns that makes this sort of writing come alive - again, not anthropomorphizing so much as establishing relevance to humans, the only animals that read, after all - and the new book's introduction promised more of the same. (washingtonpost.com)
  • Pinnacle Point, a series of archaeological sites that overlook a now submerged section of South Africa's coastline and one of the world's most important localities for the study of modern human origins, was as much of an Eden for animals as it was for early humans. (scitechdaily.com)
  • Jamie Hodgkins, PhD, assistant professor of anthropology at University of Colorado Denver, and her team drilled ancient herbivore teeth to find that many local animals stayed put in the ecologically rich ecosystem, which may explain why humans flourished there, too. (scitechdaily.com)
  • We thought it was likely that humans and carnivores were hunting animals as they migrated east and west over the exposed shelve. (scitechdaily.com)
  • This could impact the animals that have the farthest to travel and the humans who may live along their path. (noaa.gov)
  • What's the longest migration of any animal (besides humans)? (noaa.gov)
  • You can generally expect that animals will be affected by global warming in many of the same ways as humans. (greenandcleanmom.org)
  • If enough plants and animals start dying off, eventually the changes will work their way up the chain until humans are threatened. (greenandcleanmom.org)
  • Most BC C. gattii cases were among humans or animals out the year. (cdc.gov)
  • All classifications of the animal kingdom are discussed except humans (although early humans are treated in an evolutionary context). (abebooks.com)
  • Fall: Students watch chicks grow and then "join" the migration as humans teach the birds a new route using an ultra-light plane to lead the way. (nottingham.ac.uk)
  • This lagoon is one of the tree lagoons in Baja where Gray Whales give birth and breed after their migration down the Pacific Coast from Alaska. (holbrooktravel.com)
  • The eastern North American monarch population is notable for its annual southward late-summer/autumn migration from the northern and central United States and southern Canada to Florida and Mexico . (wikipedia.org)
  • Food consumption increases with the autumn molt, reaching a peak at the beginning of the migration season. (britannica.com)
  • The migratory segment between the northernmost stopover site and the breeding area, associated with the entry to and exit from the tundra during spring and autumn migration, respectively, was also identified and measured for each potential link. (biomedsearch.com)
  • Running title: Monarch alternative migration: We collected 434 adult monarchs and surveyed milkweeds for immature monarchs in southwest Michigan, USA in order to test the hypothesis that monarchs are temporally variable, sequential partial migrants rather than partial migrants that may be spatially separated. (usda.gov)
  • The history of these translocations, combined with newly available GPS tracking technology, allowed University of Wyoming ecologist Matthew Kauffman and his team to trace the development of migration behaviors. (nationalgeographic.com)
  • By directly linking subcutaneous and core body temperature, available energy, and hormonal variation to environmental conditions in free-ranging animals, we are able to interpret primate behaviors in the context of the environmentally dictated selection pressures these animals experience. (duke.edu)
  • Avoiding people is the top priority of wildebeests and zebras making their annual migration across Africa's Serengeti-Mara, finds a new study that aims to understand how animals make decisions as they travel across the ecosystem. (scientificamerican.com)
  • Every animal in an ecosystem plays an important role in the well-being of our planet. (pbs.org)
  • In addition, we record variation in weather conditions throughout the animals' forest habitats during wet and dry seasons allowing us to relate this environmental variation to the behavioral and physiological data from free-ranging monkeys. (duke.edu)
  • We are also interested in life-histories and physiological traits that relate to seasonality, and in particular in annual migration. (gla.ac.uk)
  • Stopover decision during migration: physiological conditions predict nocturnal restlessness in wild passerines. (biomedsearch.com)
  • Botswana is home to the longest terrestrial migration in Africa. (kerdowney.com)
  • 125 g), banding recoveries and at-sea surveys suggest that its annual migration from boreal and high Arctic breeding grounds to the Southern Ocean may be the longest seasonal movement of any animal. (pnas.org)
  • Without any prior migration experience, juvenile Chinook salmon can find their way to ancestral feeding grounds by using the Earth's magnetic field and an inherited internal map, according to a new study. (livescience.com)
  • 8,400 Sanderlings with individually unique combinations of colour-rings along the East Atlantic Flyway in the breeding grounds in Greenland, at migration stop-over sites in Iceland and The Netherlands and at three African (Namibia, Ghana and Mauritania) and four European (Portugal, France, England, Scotland) wintering sites. (nioz.nl)
  • Our findings indicate that learning and cultural transmission are the primary mechanisms by which ungulate migrations evolve. (sciencemag.org)
  • For migration to evolve under natural selection, the fitness benefits of migrating must out-weigh the costs of migrating and benefits of residency [ 2 , 3 ]. (royalsocietypublishing.org)
  • Animated tracks of 35 green turtle migrations tracked from nesting beaches in the Chagos Archipelago (Indian Ocean). (phys.org)
  • The analysis indicated that the evolution of migratory links among arctic shorebirds is constrained not by distance as such but by distance across ecological barriers, possibly because of the complex adaptations required for barrier crossing and extensive detour migration (and in a few cases because barrier distances exceed the birds' theoretical flight range capacity). (biomedsearch.com)
  • [4] During the fall migration, monarchs cover thousands of miles, with a corresponding multi-generational return north. (wikipedia.org)
  • Blackpoll warblers, like this male, may be tiny, but they're able to haul themselves across the Atlantic without stopping during their fall migration. (nationalgeographic.com)
  • Warblers that weigh about as much as a stack of 12 business cards fly thousands of miles across the Atlantic during their fall migration. (nationalgeographic.com)
  • For the blackpoll warbler, such a feat is called their fall migration. (nationalgeographic.com)
  • Right now we're in the peak of the fall migration season. (npr.org)
  • For SOSx use Marine Migration: Great White Shark (3D) . (noaa.gov)
  • Every night across the world's oceans, numerous marine animals arrive at the surface of the ocean to feed on plankton after an upward migration of hundreds of metres. (nature.com)
  • Learn about the world's longest migration . (nationalgeographic.com)
  • During their annual migration, Burchell's zebras must risk crossing the crocodile infested waters of the Mara River in Kenya's Masai Mara game reserve. (hubpages.com)
  • If animals were migrating between summer and winter rainfall zones, their tooth enamel would register that annual C3 and C4 plant rotation as a sinusoidal curve as their teeth grew. (scitechdaily.com)
  • It's part of the annual spring migration that began at the end of February and continues for another month or two. (weather.com)
  • The annual monarch migration is not just beautiful, it's also fascinating and mysterious. (howstuffworks.com)
  • Migration must thus be viewed in relation to the entire annual cycle. (britannica.com)
  • Deer fencing is installed on both sides of the crossings to help direct animals to cross at the designated overpasses and underpasses. (arc-solutions.org)
  • Research conducted by the University of Nevada, Reno shows that, during the first four migrations in which safety crossings were installed, more than 16,000 mule deer were kept off the road and away from potential collisions with vehicles. (arc-solutions.org)
  • You Asked, We Answered: Which Aquatic Animal Has the Longest Migration? (aqua.org)
  • How do animals navigate these long trips? (noaa.gov)
  • Many animals use magnetic fields to navigate their long journeys, and this dataset shows how the magnetic poles change over time. (noaa.gov)
  • Environmental groups like the Africa Network for Animal Welfare, which brought the original case, said the ruling leaves open the possibility of another type of road construction along the same route. (scientificamerican.com)
  • And while it certainly is great, it's one of the seven natural wonders of Africa after all, what about other animal migrations around the world? (kerdowney.com)
  • A population of zebras surprised biologists by making a more than 300-mile beeline across parts of Namibia and Botswana-the longest big-mammal migration ever documented in Africa. (nationalgeographic.com)
  • In the wilds of Africa, food and water come and go with the seasons, and animals follow. (nationalgeographic.com)
  • Survival of the fittest is nature's way of weeding out the weak from the strong, but what happe-ns when otherwise healthy animals come in contact with weak or diseased animals? (howstuffworks.com)
  • Activities include encouraging kids to use STEM skills to learn more about the topic, whether they are using math to plot the coordinates of monarch migration paths, engineering to design a birdfeeder, science to understand the phenomenon of animal migration, or technology to get involved with online citizen science. (neefusa.org)
  • Come examine why animals make these incredible journeys and learn about the cutting-edge conservation science that's taking place in one of America's crowning natural treasures-Yellowstone National Park. (nationalgeographic.org)
  • Now, we make a printable craft to remind little ones what hibernation, adaptation and migration are at a glance. (thenaturalhomeschool.com)
  • Children can leave them as they are or color the animal pictures to make them more colorful and personalized. (thenaturalhomeschool.com)
  • The nightly trek from the ocean depths to the surface has been called the largest migration on Earth, because of both the number of animals who make the nightly trek and how far these tiny creatures travel roundtrip. (eurekalert.org)
  • GREENFIELDBOYCE: They could have trouble finding food or be delayed, and that would make their long migrations that much harder. (npr.org)
  • The success or failure of individual animals to make the journey is usually needed for them to reproduce. (wikipedia.org)
  • Migratory animals are often assumed to spread pathogens around the globe, for example avian influenzas in birds and ebola viruses in bats. (birding-aus.org)
  • Hopcraft said the migration study underscores how 'catastrophic' a road would be to the Serengeti's animals, forcing them to cross the road to access the Mara River, their only source of water in the dry season. (scientificamerican.com)
  • Ungulate migrations are assumed to stem from learning and cultural transmission of information regarding seasonal distribution of forage, but this hypothesis has not been tested empirically. (sciencemag.org)
  • While there are benefits and challenges with using this method of tracking, it is one of the only practical means of tracking small birds over long distances during migration. (wikipedia.org)
  • Specialty couriers transport animals over long distances. (researchadministrationdigest.com)