Determine population dynamics. Medical search. Frequent questions

The research on the effects of fishing focuses on how different types of fisheries and fishing mortality, size-dependent interactions between fish individuals and the variation in productivity between different habitats(and resources)affect the densities and size structure of fish populations. (umu.se)
When CRW larval populations in spring 2013 to 2015 were predicted from the 2013 to 2015 autumn % white clover, respectively, based on their positive relationship in 2012, the predicted densities were substantially larger than those observed. (frontiersin.org)
Conversely, when 2015 spring larval data and % clover was regressed against 2012-2014 larval populations, observed densities tended to be higher than predicted, but the numbers came closer to predicted for the 2013 and 2014 populations. (frontiersin.org)
Methodology/Principal Findings: By using a spatially explicit computer simulation model based on behavioural and ecological data from the field vole (Microtus agrestis), we generated a number of repeated time series of vole densities whose mean population size and amplitude were measured. (ruc.dk)
Our approach, based on host abundance and infection rates, may be an effective alternative to mosquito blood meal analysis for determining vector-host contacts when mosquito densities are low and collection of blood-fed mosquitoes is impractical. (usgs.gov)
Production of offspring at Aberlady Bay was found to be inadequate for maintenance of its population of shelduck (mainly due to high duckling mortality) and immigration from other areas was thought to occur, especially from areas with low densities of shelduck where production per pair appeared to be higher. (dur.ac.uk)
Due to the snow leopard's elusive nature, vast and often inaccessible range, and low densities, there are relatively few populations that are regularly being monitored . (snowleopard.org)
On the other hand, population densities may remain well below the carrying capacity of an environment as a consequence of biological factors such as predation. (encyclopedia.com)
Because there are long periods of environmental stability, populations are able to increase in size until population densities are close to the carrying capacity k of the environment. (encyclopedia.com)

This approach allowed us to assess the complex spatio-temporal dynamics of warbler populations by directly addressing the underlying processes of local extinction and colonization. (confex.com)

I study size-dependent interactions within and between fish species and effects of fishing and climate change on population dynamics and ecological processes. (umu.se)
My general research focus on size dependent predatory and competitive interactions within and between fish species and how these, together with abiotic factors, affect the size structure, density, production and dynamics of fish populations and fish communities. (umu.se)
Within species, there is variation among populations, groups of animals in a particular area that interbreed. (wur.nl)
Background: Microtine species in Fennoscandia display a distinct north-south gradient from regular cycles to stable populations. (ruc.dk)
Although the spatial structure of the environment is known to influence predator-prey dynamics of a wide range of species, it has scarcely been considered in relation to the Fennoscandian gradient. (ruc.dk)
As changes in forest landscapes continue, landscape effects may become increasingly important drivers of population dynamics for forest bird species. (confex.com)
We used metapopulation theory as an interpretative framework to evaluate the characteristics of population dynamics and factors associated with local extinction and colonization for 22 wood warbler species over a 20 year time period. (confex.com)
Characterize long-term population dynamics in managed forests for 22 warbler species 2. (confex.com)
Assess the relationship of species life history and ecological traits as explanations for the observed occupancy dynamics. (confex.com)
Results of this study show long-term dynamics of 22 warbler species at large spatial scales were associated with species' population density and habitat specialization. (confex.com)
Landscape effects of mean patch size and total edge, as well as scale, on local extinction and colonization dynamics were species specific. (confex.com)
Identifying mechanisms of species population dynamics at large scales is critical for understanding the ecology of these species, their population trends, and their conservation. (confex.com)
Increasing the variation of ocean temperatures-temperatures that range well below or above the optimum for the species-leads to population decline, while increasing the mean (average) of ocean temperatures results in population increase. (whoi.edu)
Both models-one which increased temperature mean and the other the variation of sea surface temperatures-resulted in younger populations: an impact with potentially important conservation implications for the species because younger birds are most likely to be those caught in long-line fishing hooks. (whoi.edu)
It provides vital information on the status and population trends of endangered species, and can help identify emerging threats and evaluate the effectiveness of conservation actions. (snowleopard.org)
One method for determining population size and connectivity of marine species is through the examination of their genetics. (umaine.edu)
Where individual species fall on the r-k continuum is largely determined by the environment in which they live. (encyclopedia.com)
In the initial phase, population growth is very rapid and largely dependent on the variable r, which represents the intrinsic rate of natural increase of a species. (encyclopedia.com)
Species that are k -selected describe those for which the population density is usually close to the carrying capacity. (encyclopedia.com)
The population patterns of r -selected species often show periods of rapid, exponential growth , followed by sudden crashes. (encyclopedia.com)
This research was focused on the local mosquito species present in Traill County, N.D., and how these populations change over the summer months. (mayvillestate.edu)

A neutral marker such as the cytochrome c oxidase I (COI) gene can help establish genetic diversity and maternal gene flow among populations. (umaine.edu)

Because it can be applied to environmental samples, the approach we present is broadly applicable to measuring population growth, mortality, and associated biogeochemical process rates of microbial taxa for a wide range of ecosystems and can help reveal how individual microbial populations drive biogeochemical fluxes. (osti.gov)
More specifically, present main research approaches focus on how fish populations, fish communities and ecosystems are affected by climate change and fisheries. (umu.se)
The ecological effects that these extreme climatic events will have on already stressed ecosystems are not known," says Jenouvrier, a population biologist, "but understanding the impacts is crucial to future conservation efforts. (whoi.edu)
By looking at average temperatures from year-to-year, scientists can identify trends to determine if temperatures are warming, staying the same, or getting colder, and study how these trends affect ecosystems. (whoi.edu)
LPJ-GUESS is a flexible framework for modelling the structure and dynamics of terrestrial ecosystems at landscape, regional and global scales. (lu.se)

The aim is to develop a genomic tool to monitor inbreeding in wild populations. (wur.nl)
An emerging fungal pathogen, Batrachochytrium salamandrivorans (Bsal), has caused mass mortality events and severe population declines in European salamanders via introduction into wild populations from the pet trade. (usgs.gov)

Understanding how population-level dynamics contribute to ecosystem-level processes is a primary focus of ecological research and has led to important breakthroughs in the ecology of macroscopic organisms. (osti.gov)
However, the inability to measure population-specific rates, such as growth, for microbial taxa within natural assemblages has limited ecologists' understanding of how microbial populations interact to regulate ecosystem processes. (osti.gov)
Population dynamics focusses on the study of demographics, such as growth and decline, and the environmental processes that driving them. (wur.nl)
The team then tested theoretical models with the results from Fauteux's analyses to determine if the observed demographic processes could lead to similar population cycles observed elsewhere. (sciencedaily.com)
This destabilizing effect of local processes within plant populations might have wide-ranging implications for the understanding of plant community dynamics and coexistence. (ufz.de)
The "slow" processes of individual allocation and growth, population dynamics and disturbance are implemented once each simulation year (Figure 1). (lu.se)

By applying this model to phylogenetic marker sequencing data collected from stable-isotope probing studies, we estimate rates of growth, mortality, and turnover for individual microbial populations within soil assemblages. (osti.gov)
Determine whether reduced carbonate saturation states are a source of reduced growth and increased mortality of juvenile oysters after they leave the hatchery. (usda.gov)
We found cyclic population dynamics for a wide spectrum of model variants, provided that mortality is determined by local competition and recruitment is virtually completely suppressed within the zone of influence of established plants. (ufz.de)
Data on workers were derived from the Panel Study of Income Dynamics, the Current Population Survey, and the Quality of Employment Survey and were analyzed to determine whether estimates of compensating wages for job related mortality were biased by effects of industry rents. (cdc.gov)
Background: We used population based infectious disease surveillance to characterize mortality rates in residents of an urban slum in Kenya. (cdc.gov)
These slums are characterized by paper, we describe the overall and age-specific mortality rates and dense population, poor sanitation, and contaminated water trends over time in a well-defined population in Kibera, an urban supplies, with potential adverse health impact for community slum in Nairobi, Kenya, by utilizing population-based surveillance residents [5], [6]. (cdc.gov)

Does White Clover (Trifolium repens) Abundance in Temperate Pastures Determine Sitona obsoletus (Coleoptera: Curculionidae) Larval Populations? (frontiersin.org)
To determine if host plant abundance determined the size of clover root weevil (CRW) Sitona obsoletus larval populations, a study was conducted over 4 years in plots sown in ryegrass ( Lolium perenne ) (cv. (frontiersin.org)
The results, published online in the journal PNAS (Proceedings of the National Academy of Sciences) by a team of Canadian and Norwegian scientists, suggest the importance of predators as a primary factor driving the regular, three-to-five-year cycles of abundance in small mammal populations. (sciencedaily.com)
Here, our researchers have been able to determine abundance, reproduction and survival rates by analyzing more than 4 years' worth of data from research cameras, GPS tracking collars, and occupancy surveys. (snowleopard.org)

However, the scientists found that unlike the populations of voles in other Arctic and boreal regions, the voles of Svalbard showed no significant cyclic pattern in their population dynamics. (sciencedaily.com)

In contrast to other viruses, sharing HIV sequences from phylogenetic studies of transmission dynamics requires additional precautions as HIV transmission is criminalized in many countries and regions. (cdc.gov)
We assessed the prevalence, trends and transmission dynamics of pre-treatment HIVDR within and between MSM, people who inject drugs (PWID), female sex workers (FSWs), heterosexuals (HETs) and perinatally infected children in Kenya. (lu.se)

Quantify how annual recruitment patterns affect population dynamics of burrowing shrimp in the estuaries. (usda.gov)
Survival, migration patterns and population genetics will be studied and compared with patterns of large populations. (wur.nl)
Since adaptation is the main macroscopic outcome of Darwinian evolution, studying its patterns of change could potentially provide insight into key issues of evolutionary theory, from fixation dynamics to the genetic architecture of organisms. (frontiersin.org)
Therefore, the patterns of adaptive change could potentially inform about key issues of evolutionary theory, from fixation dynamics to the genetic architecture of organisms. (frontiersin.org)

Subsequently, these time series were subjected to statistical autoregressive modelling, to investigate the effects on vole population dynamics of making predators more specialised, of altering the breeding season, and increasing the level of habitat fragmentation. (ruc.dk)
Topping, Chris J. / How Predation and Landscape Fragmentation Affect Vole Population Dynamics . (ruc.dk)
The vole population fluctuated dramatically over the two decades-from peaks of about 120 per hectare, to an almost total absence. (sciencedaily.com)

A secondary part of the study looked at the influence of climate on the population fluctuations. (sciencedaily.com)
However, seasonal population fluctuations of SHB have not been established especially in the southeastern United States where damages to honey bee colonies caused by these beetles are usually observed. (usda.gov)
Environmental drivers of population vital rates, such as temperature and precipitation, often vary at short time scales, and these fluctuations can have important impacts on population dynamics. (usgs.gov)
The second theme deals with the importance of population dynamics, especially fluctuations in fertility, and thus cohort size, on living standards in industrial society. (lu.se)

Marine Animal Ecology contributes to the fields of population genetics and population ecology and studies how population dynamics change over time and space. (wur.nl)
A decades-long study of introduced voles on the Norwegian islands of Svalbard is helping to answer a longstanding puzzle of Arctic ecology -- what drives the well-established population cycles of small Arctic mammals, such as voles and lemmings. (sciencedaily.com)
A decades-long study of voles on the Norwegian archipelago of Svalbard is offering insights into a longstanding puzzle of Arctic ecology -- effectively, what drives the well-established population cycles of small Arctic mammals, such as voles and lemmings. (sciencedaily.com)
I use an integrative approach to conservation biology, at the interface with behavioural ecology, physiology and population ecology. (cnrs.fr)

HIV drug resistance studies are designed to determine which HIV mutations are selected by antiretroviral drugs and, in turn, how these mutations affect antiretroviral drug susceptibility and response to future antiretroviral treatment regimens. (cdc.gov)
Introduction of INSTIs after 2017 may have abrogated the increase in pre-treatment RTI mutations, albeit in the HET population only. (lu.se)

The population growth rate, evaluated by use of a deterministic projection-matrix model, predicted a stable population, λ = 1.105 ± 0.063, 95% CI = 0.985-1.231 and λ = 1.114 ± 0.062, 0.996-1.239, using two different assumptions for the final age of reproduction by ptarmigan. (bioone.org)
They found that the snow leopard population in Tost had remained relatively stable over those four years (2009 - 2013), with 10 - 14 adult cats using the area. (snowleopard.org)
We're still a long way from establishing a range-wide, systematic snow leopard population monitoring, so while the population in Tost may have been stable, there's currently no way of telling how other populations are doing. (snowleopard.org)
Despite the general interest in nonlinear dynamics in animal populations, plant populations are supposed to show a stable equilibrium that is attributed to fundamental differences compared with animals. (ufz.de)

This provided a range of % white clover content to investigate CRW population establishment and impacts on white clover survival. (frontiersin.org)
The researchers also studied impacts of extreme events on various age groups of the albatross population. (whoi.edu)

Our goal was to determine the importance of fine-scale temporal variation in survival to population dynamics of stream salmonids. (usgs.gov)
The researchers found that changes in the variation of ocean temperatures had a threefold effect on the growth rate of the albatross population compared to changes in just mean ocean temperature. (whoi.edu)
This study is a basis for understanding variation in rates of, and risks for, homelessness in general population groups, and inclusion of health data from US Department of Veterans Affairs records can extend these results to identifying links between homelessness and health risks. (cdc.gov)

In this work, we use isotope incorporation within DNA molecules to model taxon-specific population growth in the presence of 18 O-labeled water. (osti.gov)
This three-year study was conducted to monitor SHB growth and determine seasonal population dynamics in Italian and Russian honey bee colonies. (usda.gov)
Averaged population growth rate under the stochastic model was λ = 1.1, and the risk of extinction defined as the proportion of trials in which population size ≤ 1 within 30 years was ≤ 8.9%, even when the starting population was small (15 birds). (bioone.org)
To do so, they developed computer demographic models to compare the effects of changes in both the mean (average) sea surface temperature and the sea surface temperature variability on the population growth and the proportion of age groups within the population. (whoi.edu)
The variables r and k in r -and k -selection come from the logistic equation for population growth. (encyclopedia.com)
To a large extent, growth potential is determined by polygenic inheritance, which is reflected in the heights of parents and relatives. (medscape.com)

In this population-based study, named the Kopanyo Study, we used a multidisciplinary approach combining classic epidemiologic approaches (i.e., relying on the behavioral, clinical, demographical, geospatial, social, and temporal characteristics of cases) with mycobacterial genetics to describe TB transmission in 2 large districts in Botswana. (cdc.gov)

A multiple regression analysis established associations with the main variables and population dynamics: age, gender, race, and socioeconomic status. (thesportjournal.org)

The design and procedures of this population-based, prospective study have been described in detail elsewhere ( 8 , 13 ). (cdc.gov)
Social network models have been used to study how behavior affects the dynamics of an infection in a population. (aps.org)
In essence, the study shows that bottom-up, herbivore-plant interactions fail to generate such population cycles. (sciencedaily.com)
Norwegian scientists, including study co-authors Dr. Rolf A. Ims, Dr. Audun Stien, and Dr. Nigel G. Yoccoz at the Arctic University of Norway, and Dr. Eva Fuglei at the Norwegian Polar Institute, monitored populations of the voles over two decades in the 1990s and 2000s. (sciencedaily.com)
As part of a nation-wide study, NEARMI is monitoring a network of red-spotted newt populations ( Notopthalmus viridescens ) in a contiguous forest using mark-recapture techniques. (usgs.gov)
If Bsal is introduced to the Northeast, lessons learned from the study of Bd dynamics in amphibian populations can help inform management actions. (usgs.gov)
In addition to her role as co-editor, Jenouvrier is also co-author of a study featured in the special issue, which examines how extreme ocean warming events further stress an already declining population of black-browed albatross in the French Southern and Antarctic Lands. (whoi.edu)
It is the effect of such variability and extreme events in ocean temperature on an albatross population that Jenouvrier and her team were determined to study. (whoi.edu)
One of the few exceptions is the snow leopard population of Mongolia's Tost Mountains, the site of our ongoing long-term snow leopard study. (snowleopard.org)
I study behavioural mechanisms related to movement, driving habitat use and their consequences on population dynamics in birds. (cnrs.fr)
I study the behavioral mechanisms related to movements that determine habitat use and their consequences on bird population dynamics. (cnrs.fr)
Research and findings in this study reveal that grit is more complicated than a singular quality that determines effort and achievement. (thesportjournal.org)
We use ESO VLT VIMOS multi-object spectroscopy to determine redshifts of the faint galaxy population and study the luminosity-weighted dynamics and luminosity function of the system. (u-strasbg.fr)
Quasielastic incoherent neutron scattering (QENS) is a well-suited experimental method to study protein dynamics from the picosecond to several nanoseconds and in the Ångström length-scale. (lu.se)
The objective of this study was to provide a more detailed assessment of risk for homelessness among veterans than has been previously reported, in comparison with the nonveteran population and after controlling for various demographic characteristics. (cdc.gov)

Extreme population declines resulted over winters where there was significant rain on snow. (sciencedaily.com)
The force of selection acting on age-specific reproduction declines monotonically from birth in a growing or stationary population. (researchgate.net)
Disease in amphibian populations can have a range of effects, from devastating declines following introduction of a novel pathogen to recurring breakout events on a landscape. (usgs.gov)

Systematic monitoring of wild snow leopard populations provides insights into conservation status and priorities. (snowleopard.org)

This is despite estimates showing that scavenging accounts for more energy transfer in comparison to predation, clearly demonstrating its crucial role in determining ecosystem dynamics. (europa.eu)

We analyze the influence the network structure has on the agents' behavior and determine the economic value of the intangible good - social pressure. (feem.it)

The majority of infections result from interactions between the animal reservoir and human populations, although secondary transmission between humans can occur, particularly in hospital settings. (folkhalsomyndigheten.se)

Robust microbial classification systems are essential, but their definition is complicated by the large size and high diversity of microbial populations combined with a widespread horizontal genetic exchange. (researchgate.net)

This equation describes how population density changes over time. (encyclopedia.com)
The k refers to the maximum density at which a population is able to exist in a given environment, and is called the carrying capacity of that environment. (encyclopedia.com)
1 The population of Kiribati in 2010 was 103 058 people, with an average population density of 128 per km 2 . (who.int)
2 The population density on South Tarawa is 3184 persons per km 2 with a household density of seven to eight people per household, making South Tarawa among the most densely populated areas of the world. (who.int)

Elucidating mechanisms underlying the effects of diseases on amphibian populations is crucial to help managers make appropriate decisions to achieve management goals for amphibians. (usgs.gov)
In these saturated environments, crucial resources are in short supply, and there is intense competition between individuals of the population. (encyclopedia.com)

The estimated population size is about 2,000 birds and their breeding distribution is subdivided into several local areas, in each of which they may be at risk of local extinction. (bioone.org)
To complement the deterministic model, we developed an individual-based stochastic population model in which each of the individuals produced a variable number of offspring and survived one year with certain probabilities that were drawn from estimated distributions of age-specific clutch size and survival rates. (bioone.org)
Determine the influence of patch size and edge at multiple spatial scales on probability of local extinction, 3. (confex.com)
Determine the influence of habitat composition, patch size, and edge at multiple spatial scales on the probability of colonization 4. (confex.com)
By using a combination of biomechanics, energetics and macroecology in an agent based modeling framework I will test the drivers of scavenging efficiency focusing on the roles of body size, locomotion, biomechanics, population dynamics and environmental factors such as temperature. (europa.eu)

Monitoring snow leopard populations is a key part of any conservation efforts. (snowleopard.org)
Photo by photo, our researchers are putting pieces of the puzzle together though - a key step toward determining the cat's conservation status and priorities. (snowleopard.org)
J'utilise une approche intégrative de la biologie de la conservation, à l'interface avec l'écologie comportementale, physiologie et écologie des populations. (cnrs.fr)

The dependence of network connectivity and infection threshold on parameters is determined, and steady state degree distribution and epidemic levels are obtained. (aps.org)
When multiple infections are possible during an individual's lifetime, as with influenza, a host's history of infection and immunity will determine the result of future exposures. (imperial.ac.uk)
In turn, the suite of varying individual infection histories will shape the population level dynamics of the disease. (imperial.ac.uk)
However, by using an age-structured mathematical model of a disease with multiple strains, we can examine the population immune profile without explicitly keeping track of all possible infection histories. (imperial.ac.uk)

Therefore, we used a spatially explicit individual-based model of a hypothetical, non-clonal perennial to explore which mechanisms might generate complex dynamics, i.e. cycles. (ufz.de)

TB incidence and rates of TB transmission vary considerably across communities and might be dependent on high-risk behaviors, social determinates of disease (e.g., malnutrition, overcrowding, poverty), population dynamics, and transmission venues ( 10 - 12 ). (cdc.gov)
We calculated prevalence of veterans in the homeless, poverty, and general populations, and risk ratios (RR) for veteran status in these populations. (cdc.gov)
Veterans were overrepresented in the homeless population, compared with both the general and poverty populations, among both men (RR, 1.3 and 2.1, respectively) and women (RR, 2.1 and 3.0, respectively). (cdc.gov)

However, determining the dynamics of wildlife diseases and understanding the impact on host populations is a significant challenge. (usgs.gov)
We have sampled for two diseases, Ranavirus and frog chytrid (Batrochytrium dendrobatidis, or Bd) on multiple refuges in the Northeast in conjunction with an analysis of soil contaminants to determine if local site factors can predict likelihood of disease outbreaks. (usgs.gov)
Sampling for diseases such as Ranavirus and Bd will continue in the region, and Structured Decision Making workshops are underway to determine if refuges can collaboratively pursue amphibian management goals, including risk of disease. (usgs.gov)

The positive correlations found between job related death rates and wages were investigated to determine whether they are due to compensating wages, or to interindustry wage differences (industry rents). (cdc.gov)

These characteristics fully determine the dynamics of the high-energetic population in the magnetosphere. (aeronomie.be)
Service providers use HMIS to record data on client characteristics and use of services in homeless populations across a local area known as a continuum of care (CoC). (cdc.gov)

As central microbiota functions are determined by bacterial community networks, it is important to gain insight into the principles that govern bacteria-bacteria interactions. (nature.com)

Regional collaboration in collecting and sharing of research data is needed to guide management actions and determine priorities. (panda.org)

The results suggest the importance of predators as a primary factor driving the cycles, and shows that bottom-up, herbivore-plant interactions fail to generate their usual population cycles. (sciencedaily.com)

Habitat fragmentation and predator assembly jointly determined cycle length and amplitude. (ruc.dk)
In the interest of developing proactive management strategies, NEARMI's research will help identify habitat conditions that may be useful for reducing population susceptibility. (usgs.gov)

Taylor Painter presented the Mehus research lab work on mosquito population dynamics at the national conference. (mayvillestate.edu)

Some studies find more complex dynamics, but empirical studies usually are too short and most modelling studies ignore important spatial aspects of local competition and establishment. (ufz.de)

In the first, the archetypal evolution experiment, populations derived from the same ancestor are serially propagated in a new environment. (frontiersin.org)

Changes in variability can have very different consequences on population dynamics for both animals and plants," Jenouvrier says. (whoi.edu)

and determine the factors associated with genotype clustering, spatial clustering, as well as combined genotype and spatial clustering across and within districts. (cdc.gov)
Satellite galaxies show a clear spatial segregation with respect to their stellar populations - objects with old stars are confined to an elongated, central distribution aligned with the major axis of the central elliptical. (u-strasbg.fr)

However, little consideration has been given to its role in shaping or generating population cycles. (ruc.dk)
We found that fragmentation as well as the presence of specialist predators are necessary for the occurrence of population cycles. (ruc.dk)

Taken together, our findings underscore the need for targeted efforts towards equitable access to ART for children and key populations in Kenya. (lu.se)

The purpose of this research is to identify sustainable harvest regimes and to developed long-term monitoring methods and management strategies of lake fish top consumer populations. (umu.se)
The impact of renewable energies (especially wind energy) on raptor populations is a key issue in my research. (cnrs.fr)
Limited research exists in noncognitive fields such as kinetic output and physical activity, using objective third-party assessments, and in diverse populations (7, 11, 29, 32). (thesportjournal.org)
Our findings confirm previous research associating veteran status with higher risk for homelessness and imply that there will be specific health needs among the aging homeless population. (cdc.gov)

As a result, the general population is not likely to be exposed to large amounts of methyl parathion. (cdc.gov)
Populations living within or very near areas of heavy methyl parathion use would have an increased risk of exposure to large amounts of methyl parathion through dermal contact with contaminated plants, by inhalation of the mist formed from the applied insecticide, or by ingestion of water or food-borne residues. (cdc.gov)

The breeding biology and population dynamics of shelduck (Tadorna tadorna L.) at Aberlady Bay. (dur.ac.uk)

Fauteux used this data and brought to bear demographic analyses to strengthen the team's hypothesis about the importance of predators in regulating the population dynamics. (sciencedaily.com)
We estimated age-specific demographic parameters of the core population breeding on Mt. Norikura in Gifu and Nagano prefecture in Japan. (bioone.org)

Our results also revealed that SHB populations varied throughout the year with peak infestations observed in the autumn (September and November). (usda.gov)
In my presentation, I will summarize recent QENS and NSE results on the dynamics of the intrinsically disordered myelin basic protein (MBP) and the chemically denatured bovine serum albumin (BSA) (1,2,3). (lu.se)

Disulphide bonds forming loops of amino acids of the peptide backbone have a major impact on internal dynamics that can be interpreted with a reduced set of Zimm modes. (lu.se)
This gets you closer to the population you're probably going to have an impact on in terms of preventing suicide," said Holtzheimer, a professor of psychiatry and surgery at Dartmouth College's Geisel School of Medicine, Hanover, New Hampshire. (medscape.com)

For both H1N1 and H3N2, the proportion of the population seropositive to recently circulated strains peaks in school-age children, reaches a minimum between ages 35-65, then rises again in the older ages. (imperial.ac.uk)

Overfishing and other pressures can lead to severe population bottlenecks. (wur.nl)

The first phase of the simulation is known as the spinup , and normally takes 1000 years in population mode, or three times the generic disturbance interval in cohort or individual mode (see Section 2.3). (lu.se)

This means we have a real-life, simple model in which to test the influences on their populations, when the regulation from predators is absent. (sciencedaily.com)

Introduction of this pathogen to North America could be devastating, not only to local populations but also to global salamander biodiversity. (usgs.gov)

This points to the importance of top-down, predator-prey regulation for small mammal populations, he notes. (sciencedaily.com)
Determining the drivers and importance of scavenging behaviors in a changing world using agent based modeling approaches. (europa.eu)

Although more frequent hotter extreme events will lead to population decline, a change in the mean leads to more frequent warmer events that favor this specific population because the optimal value for albatross is actually warmer than the current historical temperature. (whoi.edu)

Anatomy5

Organisms70

Diseases4

Chemicals and Drugs11

Analytical, Diagnostic and Therapeutic Techniques and Equipment28

Psychiatry and Psychology9

Phenomena and Processes90

Disciplines and Occupations13

Anthropology, Education, Sociology and Social Phenomena6

Technology, Industry, Agriculture8

Information Science8

Health Care52

Geographicals14

Densities9

Spatio-temporal1

Species21

Among populations1

Ecosystems5

Wild populations2

Processes6

Mortality6

Abundance4

Cyclic1

Transmission Dynamics2

Patterns4

Vole population3

Fluctuations4

Ecology4

Mutations2

Stable4

Impacts2

Variation3

Growth6

Temporal1

Socioeconomic Status1

Study15

Declines3

Insights1

Ecosystem1

Behavior1

Secondary1

Genetic1

Density4

Crucial2

Size5

Conservation3

Infection4

Mechanisms1

Poverty3

Diseases3

Differences1

Characteristics2

Bacterial community1

Priorities1

Interactions1

Habitat2

Mosquito1

Establishment1

Experiment1

Consequences1

Spatial2

Cycles2

Kenya1

Research4

Large2

Biology1

Demographic2

Results2

Impact2

Proportion1

Severe population1

Cohort1

Predators1

Local1

Importance2

Decline1