• The life cycles of many marine species depend on a dispersive larval stage that connects spatially segregated populations. (frontiersin.org)
  • A long pelagic larval phase can help a species to break its parasite cycles. (wikipedia.org)
  • Consequently, these species have short pelagic larval durations and do not disperse long distances. (wikipedia.org)
  • Petraitis (1991) studied sex ratios in Capitella capitata (species type 1) and found that, although large populations contain males, females and occasionally hermaphrodites, at low density or in groups with a females-biased sex ratio males develop into hermaphrodites. (marlin.ac.uk)
  • Since these are found less and less in cities, the populations of many butterfly species are also declining,' explains Dr. Huan Liang from Wuhan Botanical Garden, Chinese Academy of Sciences. (eurekalert.org)
  • The diet of that species eluded me during my time in Oregon (the guts of the few specimens I examined never had anything recognizable in them), but I have since learned that one of the sponges I had found intertidally in Oregon is indeed an Oscarella . (seaslugforum.net)
  • Thanks Jeff, Another valuable find - and another species to add to the Forum. (seaslugforum.net)
  • It is not clear whether this species breeds by direct or larval development. (amphibiaweb.org)
  • This species is found in mountain ranges at 1700 m above sea level. (amphibiaweb.org)
  • Both populations are found in protected national parks and the species itself is protected by national legislation in India. (edgeofexistence.org)
  • Ten species were found parasitizing the pest, including two egg parasitoids, one egg-larval, five larval and two larval-pupal parasitoids. (cabi.org)
  • Marine tests showed an inhibition of growth with the two different algal species (P. tricornutum and D. tertiolecta), an inhibition of bioluminescence in the bacterium A. fischeri, an alteration on the correct early development of the serpulid F. enigmaticus larvae and immobilization of the copepod A. tonsa individuals at both 24 and 48 hours of exposure. (easychair.org)
  • The spawning behavior and the rapid larval development of this species appear to be adaptations for the use of temporary waters as a spawning ground. (bioone.org)
  • Click on a species or topic to find similar references, or click on BOTH to find references that contain both the species and topic keywords for that row. (wildflorida.org)
  • New research provides the first detailed descriptions of the larval developmental stages of three species of Odontomachus trap-jaw ants. (sciencedaily.com)
  • Beyond providing the first categorization of larval stages for these ants, surprising results from the work include discovery of the "sticky doorknobs" which were previously studied in only one other ant species, developmental anomalies such as the appearance of additional doorknob protuberances, and the discovery of a larval parasite found in the gut of a third instar larva. (sciencedaily.com)
  • There are 12 identified giant clams species in the Coral Triangle, a swath of the western Pacific rich in marine life, and eight can be found in the Philippines. (mongabay.com)
  • They also studied the development of eight beetle species in the laboratory (seven Onthophagus species and one species from the closely related but hornless genus Oniticellus ). (iu.edu)
  • The scientists found that all seven Onthophagus species examined in the laboratory develop horns during their larval and pupal development. (iu.edu)
  • In the American Naturalist report, Moczek examined the development of four Onthophagus species. (iu.edu)
  • Larval identification of the species was confirmed by the only known previous description of the second zoeal stage of this Caridean shrimp from shallow waters of central Chile. (awi.de)
  • In the course of captive rearing to investigate the larval development of the species, I observed an unusual partial loss of pigmentation in two individuals from two widely separated locations. (bioone.org)
  • The identity of Celastrina species in eastern Canada is reviewed based on larval host plants, phenology, adult phenotypes, mtDNA barcodes and re-assessment of published data. (pensoft.net)
  • In the United States, most infections are caused by Babesia microti , a species commonly found in mice. (medscape.com)
  • Babesia species and organisms of the closely related genus Theileria parasitize the erythrocytes of wild and domestic animals.These parasites are members of the order Piroplasmida, named for the pear-shaped forms found within infected red blood cells (RBCs). (medscape.com)
  • Babesia microti is the species found in mice. (medscape.com)
  • Species vary in the duration of larval development, and a variety of external factors affect the development rate (e.g., water temperature, food type, and larval density), which are discussed more thoroughly elsewhere. (cdc.gov)
  • For most Anopheles species, larval-pupal metamorphosis commences 1 wk after egg hatching. (cdc.gov)
  • Dengue outbreaks have also been associated with Aedes albopictus , particularly in China, 3 and several other Aedes species found in South Pacific countries and areas may also be competent dengue vectors. (who.int)
  • Then, scientists used a microscope to document the size, shape and structure of live specimens during the final stages of larval development. (sciencedaily.com)
  • The number of larval stages in insects can be variable, however the new study finds that trap-jaw ant workers go through three stages of larval development. (sciencedaily.com)
  • However, quantifying larval movement among populations remains one of the greatest challenges in marine ecology. (frontiersin.org)
  • This study has demonstrated the ability of otolith chemistry to discriminate source populations of pelagic larvae in a fully marine environment, which provides a basis to quantify larval movement between fish populations. (frontiersin.org)
  • The ability to discriminate between larvae that originated from different source populations provides a basis to quantify larval movement in marine ecosystems. (frontiersin.org)
  • Identifying the degree of larval exchange among populations is necessary to understand population dynamics and inform stock structure. (frontiersin.org)
  • However, quantifying larval movement among populations remains a significant challenge. (frontiersin.org)
  • To provide a taxonomic reference point for Canada's Celastrina populations and to stimulate further study, the identity of Ontario Celastrina populations is re-assessed based on published and novel data on phenology, larval host plant use and mtDNA variation. (pensoft.net)
  • 163 mm are found in natural populations (Ropes and Merrill 1976), the method is not generally applicable. (noaa.gov)
  • albopictus larval populations demonstrated mortalities between 7.00% and 100.00% by the end of the first 4 h of Temebate® exposure with the resistance ratios between 0.94 and 8.33. (bvsalud.org)
  • albopictus larval populations exhibited increased mortalities with ten of them showing 100% mortalities. (bvsalud.org)
  • Monarch lethal and sub-lethal responses were tracked over their complete development, from early instar larvae to adult death. (nature.com)
  • Egg incubation requires 12 days, and hibernation occurs in the 1st larval instar. (ucr.edu)
  • The Eastern form, found from Newfoundland to the Southern Appalachians and west to Saskatchewan, as a 5th instar ( Fig. 1I ), is characterized by black setae at both ends and a yellow central region with black dorsal spots. (bioone.org)
  • The Western form, found from the Rocky Mountains to the Pacific coast, is similar in the 5th instar, except that the central region is orange and there are no dorsal spots ( Fig. 1d ). (bioone.org)
  • One of the project's most interesting findings came from its analysis of dynamic changes in the presence and abundance of gut bacteria during larval development and pupation. (europa.eu)
  • Mortalities occurred during pupation, not at the larval stages. (stopumts.nl)
  • We have therefore exposed honey bee queen larvae to the radiation of a common mobile phone device (GSM band at 900 MHz) during all stages of their pre-adult development including pupation. (stopumts.nl)
  • Mosquito larvae are aquatic and go through four development stages (larval instars L1-L4) before pupation. (cdc.gov)
  • However, depending on the amount of food provided, H(2)O temperature, and larval density, the pupation process can be accelerated or delayed. (cdc.gov)
  • Both larval and adult A. albopictus mosquitoes were found from April to November, and the density of larval A. albopictus peaked in September (BI = 21.21), while the density of adult A. albopictus peaked in August, with a net trapping index of 2.38 mosquitoes/(net·hour). (bvsalud.org)
  • Investigate the area to find the largest concentration of flies and you will likely run across the area where the flies breed and lay eggs. (ehow.com)
  • Normally, the wasp larvae hatch early in the scale's egg development cycle, and the feeding larvae weakens the scale insect, causing it to produce fewer eggs. (phys.org)
  • Breeding takes place in tree holes and there is larval development meaning tadpoles will emerge from the eggs. (edgeofexistence.org)
  • 1960. Eggs and larval development of the treefrogs Hyla crucifer and Hyla ocularis. (wildflorida.org)
  • Sperm and eggs are released into the environment where fertilization and larval development occur. (noaa.gov)
  • Diagnosis is by finding eggs in stool. (msdmanuals.com)
  • Larval dispersal is one of the most important topics in marine ecology, today. (wikipedia.org)
  • The summer generation of C. lucia has previously been misidentified as C. neglecta , which differs in phenology, adult phenotype and larval hosts from summer C. lucia . (pensoft.net)
  • This research determined the number of larval developmental stages, or instars, by measuring hundreds of larval head widths and body lengths and by identifying stage-specific anatomical features through scanning electron microscopy. (sciencedaily.com)
  • The two most abundant parasitoids in both countries were two Braconidae: the egg-larval parasitoid Chelonus bifoveolatus and the larval parasitoid Coccygidum luteum. (cabi.org)
  • Sixteen different larval and juvenile types were found representing seven phyla: Echinodermata, Nemertea, Coelenterata, Mollusca, Annelida, Arthropoda and Bryozoa, of which the first two were the most abundant. (bas.ac.uk)
  • What researchers found was that the overall bacterial density remains similar across the development stages in Acromyrmex ants. (europa.eu)
  • So we believe that this parasite just happened to find a suitable environment and all the needs for sustaining its lifecycle, including all animal hosts, which we're going to talk about in more detail. (cdc.gov)
  • and the intermediate hosts are those where there's development of larval stages of this parasite. (cdc.gov)
  • This hypothesis views larval survival and successful recruitment as chance events, which numerous studies on larval behavior and ecology have since shown to be false. (wikipedia.org)
  • In Drosophila , InsP 3 R activity is required in aminergic interneurons during pupal development for normal flight behavior. (jneurosci.org)
  • The presence of many stages of nemertean larval development within a short time scale, in an area where developmental tends to be slow, suggests that reproduction occurs over an extended period and that the larvae have a long planktonic phase. (bas.ac.uk)
  • to develop a deep understanding of key early developmental events shared in both larval and adult echinoderms, with a special emphasis on cell lineage and skeletogenesis. (gu.se)
  • I. scapularis has 3 developmental stages-larva, nymph, and adult-each of which requires a blood meal for development into the next stage. (medscape.com)
  • Qian & Chia (1991b) found that larvae grew faster and had shorter pelagic periods when fed with phytoplankton at concentrations of 10x and 25x ambient concentrations. (marlin.ac.uk)
  • These are critical stages for both larval development and adult growth/regeneration but temporally and spatially separated. (gu.se)
  • Overall, we found no impact of any pesticide on immature development time and relatively weak effects on larval herbivory or survival to adulthood. (nature.com)
  • and, 3) growth index (percentage immature survival divided by immature development time). (usda.gov)
  • T solium embryos penetrate the GI mucosa of the pig and are hematogenously disseminated to peripheral tissues with resultant formation of larval cysts (cysticerci). (medscape.com)
  • The human then becomes an accidental intermediate host, with development of cysticerci within organs. (medscape.com)
  • Cysticerci may be found in almost any tissue. (medscape.com)
  • Cysticercosis of the central nervous system (neurocysticercosis) is caused by the larval stage (cysticerci) of the pork tapeworm Taenia solium . (who.int)
  • Lugworms have been found to have a strongly negative effect on the juvenile densities of Capitella capitata (Flach, 1991). (marlin.ac.uk)
  • Once in the mosquito, the juvenile worms pass through 2 larval stages before development halts. (medscape.com)
  • Researchers found that sea urchin larvae grew into juvenile sea urchins on two types of algae commonly found on the floor of Caribbean coral reefs. (sciencedaily.com)
  • Urchin larvae float and swim around the ocean until they find a place on the sea floor to attach and transform into a juvenile sea urchin. (sciencedaily.com)
  • On all host plants, significant relationships were found between amount of leaf tissue consumed and resulting pupal weight. (usda.gov)
  • Likewise, significant relationships were found between pupal weight and subsequent adult fecundity on all host plants. (usda.gov)
  • We also include optional methods for estimating life history traits such as fecundity, fertility, and larval mortality rates from egg counts. (cdc.gov)
  • Each strategy has risks of predation and the difficulty of finding a good settlement site. (wikipedia.org)
  • Shull (1997) also demonstrated that this occurs by larval settlement, bedload transport and by burrowing. (marlin.ac.uk)
  • Understanding such patterns of host utilization will be important to development of tactics involving manipulation of wild and cultivated hosts for incorporation into areawide management strategies. (usda.gov)
  • Development of a hemi-nested RT-PCR tile adults in their definitive vertebrate during the main animal-trapping sea- method for the specific determination of hosts. (cdc.gov)
  • AMIABLE took this finding further by conducting transmission electron microscopy studies to show that each of these symbiotic bacteria has structural adaptations for life within the ant hosts, either intracellularly, extracellularly or a combination of both. (europa.eu)
  • Breeding occurs in the mouth of montane streams and larval development takes place in the water (IUCN 2008). (amphibiaweb.org)
  • If newly-hatched nymphs don't find enough insects to eat shortly after leaving the nest, they start cannibalizing their own siblings. (dyckarboretum.org)
  • While this reduction is partly due to the indirect effect of habitat loss (i.e., large fields with frequent herbicide inputs have fewer floral resources), intensification can also have direct effects by exposing individuals to pesticide residues that increase mortality or impair development. (nature.com)
  • The researchers found that the mortality of Chaetopteryx spec. (gmwatch.org)
  • A secondary challenge in disentangling the role of pesticides in butterfly population ecology is that chemicals can act on either the larval or adult stage. (nature.com)
  • Marine larval ecology is the study of the factors influencing dispersing larvae, which many marine invertebrates and fishes have. (wikipedia.org)
  • In diverse organisms, there is an anticipatory mechanism during development that can program adult phenotypes. (icr.org)
  • Nevertheless, Temebate® application by consumers in dengue-risk localities need to be carefully monitored to prevent further development of temephos resistance among Ae. (bvsalud.org)
  • Joan Brunkard] We found that forty percent of Brownsville residents and seventy eight percent of Matamoros residents showed serologic evidence of past dengue infection, indicating that dengue is endemic, or established, on both sides of the border in this region. (cdc.gov)
  • Other risk factors for past dengue infection included having mosquito larval habitat, such as water-holding containers around the house, and not having air conditioning or street drainage. (cdc.gov)
  • 2 The most important dengue vector in the Western Pacific Region is Aedes aegypti ( Stegomyia aegypti ), which is predominately found in densely populated urban areas. (who.int)
  • We provide evidence that mobile phone radiation may alter pupal development, once succeeded this point, no further impairment has manifested in adulthood. (stopumts.nl)
  • Sometimes found at a distance from streams (Vences et al. (amphibiaweb.org)
  • They also found that the characteristics of a substrate, such as a rough texture, are important. (sciencedaily.com)
  • We present data on the occurrence of mitosis in storage cells of the eutardigrade Richtersius coronifer (Richters, 1903), and analyse mitotic cells in relation to different body characteristics, including egg development stage, moulting, gut content, body length, number and size of oocytes, and shape and size of the storage cells. (researchgate.net)
  • Since the knowledge on life history and larval morphology in the Alpheidae is extremely scarce, we provide these descriptions in order to facilitate future ecological work on meroplankton, as well as these features could give more insights into phylogenetic relationships on the basis of larval characteristics. (awi.de)
  • Duration of the larval stage was shortest on pigweed (12.4 d) and longest on pepper (18.0 d). (usda.gov)
  • Our mission is to end HIV and AIDS, malaria and tuberculosis by providing technical, strategic and operational support for the diagnosis and case management of these diseases, undertaking data analysis to inform decision-making and supporting the achievement of other control and elimination goals through the development of appropriate policies and strategies and provision of training and capacity-building of the health workforce. (who.int)
  • Development of efficient strategies for controlling BAW will require knowledge of the biological relationships between the host plant and insect. (usda.gov)
  • The paper, "Early pest development and loss of biological control are associated with urban warming," will be published online Nov. 19 in the journal Biology Letters . (phys.org)
  • The authors point out that previous studies have found differentially expressed proteins in a GM maize relative to its non-transgenic isogenic line, although the biological relevance of such changes remained unknown. (gmwatch.org)
  • These data provide an important baseline for the development of various biological control options. (cabi.org)
  • Understanding the parasitoid complex of S. frugiperda in Africa is also necessary before any development of classical biological controls involving the introduction of parasitoids from the Americas. (cabi.org)
  • Vector control strategies include chemical, biological and environmental management that mainly target larval breeding sites. (who.int)
  • Speed of larval development to pupae is dependent on temperature and humidity. (capcvet.org)
  • Persistent Toxocara canis larval infection is prevalent in dogs and is associated with substantial specific antibody reactions. (uzh.ch)
  • It is speculated that T. canis infection may have a protective effect against the development of canine atopic dermatitis and/or that elevations in total serum IgE level are often not associated with atopic dermatitis. (uzh.ch)
  • In non-endemic industrialized countries imported cases have been found in, for example, carriers of intestinal-stage T. solium infection, who, through food-handling and other modes of contact, can be sources of locally-acquired cases, and persons with latent cysticercosis of the central nervous system. (who.int)
  • Symptoms include rash at the site of larval entry and sometimes abdominal pain or other gastrointestinal symptoms during early infection. (msdmanuals.com)
  • It will keep the infective larval stage viable for the infection of their definitive host. (cdc.gov)
  • In infected humans, the adult W bancrofti worms are most commonly found in periaortic, inguinal, and intrascrotal lymphatic tissue. (medscape.com)
  • With the larval horn tissue destroyed, the scientists observed most larvae were unable to break the husks of their larval head capsules, resulting in young adult hatchlings whose heads were tightly (and lethally) encased within larval helmets. (iu.edu)
  • Differences in larval size, development of the appendages and telson indicate the present larval stages to be more advanced than that of previous work which are discussed as adaptations at latitudinal changes of the environment. (awi.de)
  • 2000) found that an increase in abundance of macroalgae resulted in a substantial increase in the abundance of Capitella capitata . (marlin.ac.uk)
  • A study in Southern India reported in 2000 found an association between cysticercosis of the central nervous system and localization-related symptomatic epilepsies in 51% of patients. (who.int)
  • As many arthropod pests and vectors of animal/human diseases live in association with bacteria, increasing our knowledge on symbiont-host interactions facilitates the future development and use of environmentally friendly insect control solutions,' he says. (europa.eu)
  • A survey of the field caught true armyworm males showed high inter-male variability in both concentration and FA from July 12toAugust5.1alsoquantifiedpheromonesofmalesfedonartificialdietorcom leaves during larval development when reared under controlled laboratory and fluctuating field conditions. (uwo.ca)
  • Newly-emerged males reared under field condition had more pheromones and were more symmetrical than ones reared under controlled laboratory conditions on both larval diets. (uwo.ca)
  • The Spotted Tussock Moth, Lophocampa maculata Harris 1841, (Erebidae, Arctiinae ( Lafontaine & Schmidt 2010 )), is found across North America on both sides of the US/Canadian border, along the Pacific coast, and in both the Appalachian and Western mountains of the US ( Powell & Opler 2009 ). (bioone.org)
  • Hi Bill, While in the Wellington area I found intertidally two specimens of Berthella that Richard Willan kindly identified from the accompanying images as B. medietas Burn 1962 . (seaslugforum.net)
  • These parasites are commonly called piroplasms because of the pear-shaped forms found within infected red blood cells (RBCs). (medscape.com)
  • Researchers have identified algae on which larval sea urchins grow into juveniles in a lab setting. (sciencedaily.com)
  • Specifically, the researchers found that P. quercifex does develop earlier in the year in a city, due to the warmer urban temperatures. (phys.org)
  • But the researchers found that warmer temperatures can change that outcome significantly. (phys.org)
  • The resistance in vectors warrants development of newer insecticides for mosquito control besides use of other counter-measures. (bvsalud.org)
  • The size of Simulium pupae depends upon the availability of food material during larval development. (scirp.org)
  • Whitish pupae (cocoons 0.5 cm long) can be found in soil, in vegetation, in carpets, under furniture, and on animal bedding. (capcvet.org)
  • They depend on very specific plants for their nutrition and larval development. (eurekalert.org)
  • Since the BMP system also plays a fundamental role in embryonic and larval development it is if significant interest to identify possible common regulatory pathways. (gu.se)
  • In this month's American Naturalist (Dec. 2006) and the Nov. 2006 issue of Evolution , Indiana University Bloomington scientists present an entirely new function for the horns: during their development, Onthophagus horned beetles use their young horns as a sort of can opener, helping them bust out of thick larval shells. (iu.edu)
  • Because all the Onthophagus beetles the scientists examined form horns during development, Moczek and colleagues also argue the evolution of ornate horns in the adult beetles may actually have happened second -- that is, some time after their initial evolution as larval molting devices. (iu.edu)
  • Planktotrophic development is the most common type of larval development, especially among benthic invertebrates. (wikipedia.org)
  • You will need to find it and use an insecticide to destroy the colony of maggots to solve the problem. (ehow.com)
  • June 14, 2023 Have you ever noticed an ant in your home, only to find that a week later the whole colony has moved in? (sciencedaily.com)
  • If treated queens had successfully mated, colony development was not adversely affected. (stopumts.nl)
  • The study provides important information to protect biodiversity and for sustainable urban development. (eurekalert.org)
  • The present study aimed at performing an ecotoxicological screening of 15 NADESs using an extensive set of marine and freshwater bioassays, based on different endpoints: immobilization of the crustacean Daphnia magna, growth inhibition of Raphidocelis subcapitata and of Phaeodactylum tricornutum, larval development alterations on the serpulid Ficopomatus enigmaticus and bioluminescence inhibition of Aliivibrio fischeri. (easychair.org)
  • albopictus larvae were attained via a larval survey at each study locality. (bvsalud.org)
  • From 2002, the development of WHO specifications follows the New Procedure , described in the Manual for Development and Use of FAO and WHO Specifications for Pesticides. (who.int)
  • We find that lin-28 and sequences within the lin-46 5' UTR are required to prevent LIN-46 expression at early larval stages. (stanford.edu)
  • The first state in which Angiostrongylus cantonensis was found here in the US was Hawaii, and this goes back to late 50's and early 60's. (cdc.gov)
  • Mobile phones can be found almost everywhere across the globe, upholding a direct point-to-point connection between the device and the broadcast tower. (stopumts.nl)
  • The finding will surprise anyone who assumed hornless Onthophagus adults (usually the females) never form the horns in the first place. (iu.edu)
  • albopictus larval population was subjected to a 24-h larval bioassay using Temebate® at operational dosage of 1 mg/L. Almost all Ae. (bvsalud.org)
  • Consumption rates, development times, and life table parameters of the beet armyworm [Spodoptera exigua (Hubner) (Lepidoptera: Noctuidae)] were determined on five host plants: cabbage (Brassica oleracea L.), cotton (Gossypium hirsutum L.), bell pepper (Capsicum frutescens L.), pigweed (Amaranthus retroflexus L.), and sunflower (Helianthus annuus L). Mean total leaf weight consumed by larvae was highest in cabbage (2.7 g) and lowest in pigweed (1.6 g). (usda.gov)