Populations ecology. Medical search. Frequent questions

The discipline is important in conservation biology, especially in the development of population viability analysis which makes it possible to predict the long-term probability of a species persisting in a given patch of habitat. (wikipedia.org)
Although population ecology is a subfield of biology, it provides interesting problems for mathematicians and statisticians who work in population dynamics. (wikipedia.org)
Population ecology has also played an important role in the development of the field of conservation biology especially in the development of population viability analysis (PVA) which makes it possible to predict the long-term probability of a species persisting in a given habitat patch ( e.g. , a national park). (citizendium.org)
While essentially a subfield of biology , population ecology provides many interesting problems for mathematicians and statisticians , which work mainly in the study of population dynamics . (citizendium.org)
Best Ecology, Evolution, Systematics and Population Biology Degree Colleges in the U.S. (universities.com)
University of California-San Diego offers 1 Ecology, Evolution, Systematics and Population Biology, Other degree programs. (universities.com)
In 2020, 38 Ecology, Evolution, Systematics and Population Biology, Other students graduated with students earning 38 Bachelor's degrees. (universities.com)
University of Washington-Seattle Campus offers 3 Ecology, Evolution, Systematics and Population Biology, Other degree programs. (universities.com)
Washington University in St Louis offers 1 Ecology, Evolution, Systematics and Population Biology, Other degree programs. (universities.com)
Population biology is a type of ecology that focuses specifically on how populations behave. (explorable.com)
The minimum viable population (MVP) size has been compared for a wide range of organisms in conservation biology, but a limited number of studies investigated it for freshwater fishes, which exhibit diverse life history strategies. (nature.com)
This course is a good base for continued advanced studies within ecology and related areas, and is a pre-requisite for studying Evolutionary Animal Ecology and Conservation Biology. (lu.se)
The Theoretical Population Ecology and Evolution Group takes the population as the natural, and some would say inevitable, starting point for the study of a range of central questions in ecology and evolutionary biology. (lu.se)
My interest in plant population biology and evolution developed early in life through many hours of hiking and working in the Rocky Mountains of Canada. (uoguelph.ca)
degree in which I investigated the biology of submerged aquatic plants and focused my interests on the ecology of small, isolated plant populations. (uoguelph.ca)

A prominent biologist, ecological philosopher, and keen student of human population control, Hardin now offers the finest summation of his work to date, with an eloquent argument for accepting the limits of the earth's resources--and the hard choices we must make to live within them. (goodreads.com)
Populations, communities, and ecosystems are ecological units that can be considered along a scale of increasing system complexity and structure. (frontiersin.org)
There are many different ecological constraints that are collected in the literature under the umbrella of 'food limitation' when ecologists try to explain the causes of population changes or conservation problems. (ubc.ca)
The key to explain population differences must come from resource differences in the broad sense, not food alone but a host of other ecological causal factors that may produce changes in birth and death rates in populations. (ubc.ca)
In this talk I will show that the combination of two ubiquitous biological mechanisms, demographic differences between juvenile and adult individuals and the energy requirements to keep a living body alive (somatic maintenance costs), is sufficient to overturn a large number of ecological rules-of-thumb derived from the unstructured population models that form the basis of current ecological theory. (santafe.edu)
This thesis firstly presents a mark-recapture study conducted over 42 months on Matiu/Somes Island to obtain ecological information about the population. (vuw.ac.nz)
By combining regressions of vital rates, an IPM provides mechanistic insight into emergent ecological patterns such as population dynamics, species geographic distributions, or life history strategies. (ru.nl)
We conduct research in applied plant ecology with emphasis on a statistically robust description of the various measures of plant abundance , e.g. plant cover, and model the ecological processes in plant communities, e.g. plant competition. (au.dk)
The research group the Theoretical Population Ecology and Evolution Group studies basic ecological and evolutionary questions such as speciation, dynamics and evolution in ecological populations, behaviour and life history strategies, and adaptations to changing environments. (lu.se)
The importance of genetic diversity (mutation, gene flow, drift, heritability) to adaptive evolution is widely recognized, but it is less clear whether and how it affects ecological function and viability of populations. (uoguelph.ca)
Here, we present a range-wide examination of the relative fragility of lion populations, examining socio-political factors alongside ecological ones. (nature.com)
At a country level, lion populations had highest ecological fragility in Cameroon and Malawi. (nature.com)
When socio-political and ecological fragility were combined, lion populations in Maze National Park and Bush-Bush (Somalia) and more broadly, Somalian and Malawian lion populations were the most fragile. (nature.com)
Despite their ecological, economic and existence value, lions have undergone striking declines in both geographic range and population size over recent decades. (nature.com)

The development of population ecology owes much to the mathematical models known as population dynamics, which were originally formulae derived from demography at the end of the 18th and beginning of 19th century. (wikipedia.org)
The development of the field of population ecology owes much to the science of demography and the use of actuarial life tables . (citizendium.org)

Frontiers in Ecology and Evolution is member of the Committee on Publication Ethics. (frontiersin.org)

The latest range-wide estimates from 2023 estimate a remaining population between 20,000 and 25,000 African lions 6 . (nature.com)

Insights from our research and the quantitative tools we use are put to service in the management of exploited populations (e.g., wildlife and marine fish stocks), estimation of ecosystem services, and the management and conservation of biodiversity. (lu.se)

Community Ecology , (2019) 2'nd ed, G. G. Mittelbach & B. J. McGill. (lu.se)

Eugene Odum, writing in 1953, considered that synecology should be divided into population ecology, community ecology and ecosystem ecology, renaming autecology as 'species ecology' (Odum regarded "autecology" as an archaic term), thus that there were four subdivisions of ecology. (wikipedia.org)
Odum (1959, p. 8) considered that synecology should be divided into population ecology, community ecology, and ecosystem ecology, defining autecology as essentially "species ecology. (citizendium.org)

The ecology of fear from predation has blossomed into a very large literature that explores the non-consumptive effects of predators on prey foraging that can lead to food limitation without food resources being in short supply (e.g. (ubc.ca)
Simulated predators, prey, and environment niches allow students to visualize the concepts of predation and community-population fluctuation. (wardsci.com)
They include things like diseases, insufficient food and starvation, increase in predator population (due to increase in food supply) leading to increased predation rates, and stress and crowding factors which can lower birth rates. (explorable.com)
Various topics such as competition, predation, community ecology and trophic interactions are treated in lectures, article seminars and a literature project. (lu.se)

For my master's project, I'll be applying population genetics and genomics techniques to better understand the degree of population mixing and breeding ground assignment of feeding humpback whales in the eastern North Pacific. (oregonstate.edu)
My research and that of my lab group is focused on the ecology and genetics of plant populations. (uoguelph.ca)
The research group Aquatic Ecology studies, among other things, climate change effects on aquatic systems, regime shifts in shallow lakes, dispersal, and migration of aquatic organisms, population genetics, predator-prey interactions, effects of pesticides and endocrine disruptors and sustainable fisheries. (lu.se)

Shapovalova I.B. Transformation of Ornitofauna in the Ptan River Valley (Southeast of Tula Region) under the Constant Anthropogenic Impact // Ecosystems: ecology and dynamics. (ecosystemsdynamic.ru)

Population growth rate is another measure often used in viability analysis. (nature.com)

Allen, M.C., Clinchy, M. & Zanette, L.Y. (2022) Fear of predators in free-living wildlife reduces population growth over generations. (ubc.ca)
2022) while populations in Limpopo National Park in Mozambique have been driven to near extinction by increasing poaching for lion parts 14 . (nature.com)

In this book, André de Roos and Lennart Persson advance a synthetic and individual-based theory of the effects of this plastic ontogenetic development on the dynamics of populations and communities. (princeton.edu)
Population dynamics focuses on aggregations of individuals (including at different trophic levels), community dynamics involves groups of populations, and ecosystem dynamics can include multiple communities, usually across the range of trophic levels in a system. (frontiersin.org)
This section addresses all major aspects of population, community, and ecosystem dynamics, with an emphasis on inter- and intra-specific interactions, organism-environment relationships, numerical cycles and stability, meta-populations and meta-communities, functional diversity and connectance, networks, food webs and energy flow. (frontiersin.org)
We use mathematics to formalize rigorously the dynamics of populations and communities and use these conceptual models to analyse the responses of individuals, populations and communities to environmental change, and the evolution of behavioural and other traits. (lu.se)
Better understanding the ecology of microbes- relationships within and across these communities-is just the beginning of public health's scientific journey. (cdc.gov)
Ebola outbreak on record, with an unprecedented number of affected countries and thousands of cases and deaths.1 Widespread and intense transmission is devastating for families and communities, compromising essential civic and health services, weakening economies and isolating affected populations. (who.int)
Populations of interconnected families and communities living close to porous borders moved easily and regularly between countries. (who.int)
But most of the infectious diseases that devastate human populations have their roots in wild species, and many pathogens are maintained silently by local wildlife communities before spillover to humans occurs. (cdc.gov)
Airborne ecology results were consistent with phylum level taxonomic patterns emerging from observations of outdoor bioaerosol communities. (cdc.gov)

Conservative estimates of population viability suggested that 1800 species, which accounted for 20% of all freshwater fishes, had become extinct or on the verge of extinction in 1992 2 . (nature.com)
For example, IUCN Criterion D categorizes the level of threat based on a set of threshold population sizes, whilst Criterion E uses the projected risk of extinction faced by a species over a specified period (IUCN 2005). (nature.com)
Therefore, when the population density or size hits a number below this threshold, the population will be destined for extinction without any further aid"(https://en.wikipedia.org/wiki/Allee_effect). (insightmaker.com)

This exercise simulates the opening of a new habitat and the competition between a population of mice and foxes to utilize it. (wardsci.com)
I was able to present preliminary results on the population structure of feeding humpback whales across shared feeding habitat by multiple breeding groups in the eastern North Pacific using mitochondria DNA haplotype frequencies. (oregonstate.edu)
In particular, we focus on aspects of the following: community ecology, population ecology, life history and reproductive ecology, habitat use, special habitats and adaptations, and feeding ecology. (encyclopedia.com)
We are experimenting with the installation of artificial nesting structures at Thunder Basin National Grassland in efforts to offset this localized habitat loss and have a positive influence on population trends of Golden Eagles in northeast Wyoming. (tetonraptorcenter.org)
As lions depend upon their habitat, it is therefore suspected that a similar population reduction has occurred 6 . (nature.com)

André M. de Roos is professor of theoretical ecology at the University of Amsterdam. (princeton.edu)

In fact, Odum regarded "autecology" as no longer a "present tendency" in ecology (i.e., an archaic term), although included "species ecology"-studies emphasizing life history and behavior as adaptations to the environment of individual organisms or species-as one of four sub-divisions of ecology. (citizendium.org)

All populations contain a finite number of individuals, particularly those populations in restricted or marginal habitats or disturbed or fragmented landscapes. (uoguelph.ca)
Details for: Population dynamics and ecology of Bulinus globosus (mollusca, gastropoda in selected habitats in the Ifakara area, Tanzania. (who.int)

My specific interests range from mechanisms driving dynamics of populations of rare, invasive but also native common herbaceous species at local as well as regional scales, via mechanisms affecting the ability of these species to adapt to various local conditions, to how are these process affected by interactions of plants with other organisms. (cas.cz)
Individuals are evenly distributed, influenced by interactions between organisms in the population. (quizizz.com)
CDC invests in microbial ecology research to study the interactions of microbes among people, animals, plants, food, and surfaces (e.g., counter tops), all of which can serve as sources of microbes that can lead to infection. (cdc.gov)

APHRC seeks to recruit up to five researchers to work in its Data and Measurement (2), Aging and Development (1), Urbanization and Wellbeing (1), and Population Dynamics and Sexual and Reproductive Health & Rights (1-2) Units. (washington.edu)
Populations have different reproductive strategies . (explorable.com)
To understand these relationships we focus mainly on plant genetic systems, those reproductive attributes that govern mutation, gamete formation, pollination, fertilization, and organization of genetic diversity in populations. (uoguelph.ca)
Accounting for this sexual diversity is important because of its significance for population persistence, reproductive isolation and the organization of genetic diversity within and among populations. (uoguelph.ca)

Potential impacts related to ecology, agriculture, and health were diverse but poorly documented in the literature. (unl.edu)

Differences in this efficiency - or ontogenetic asymmetry - lead to bottlenecks in and thus population regulation by either maturation or reproduction. (princeton.edu)
Featuring numerous examples and tests of modeling predictions, this book provides a pioneering and extensive theoretical and empirical treatment of the ecology of ontogenetic growth and development in organisms, emphasizing the importance of an individual-based perspective for understanding population and community dynamics. (princeton.edu)

Population ecology is a sub-field of ecology that deals with the dynamics of species populations and how these populations interact with the environment, such as birth and death rates, and by immigration and emigration. (wikipedia.org)

Recent addition to our research line includes the study of hyenas' behavioural ecology in Kenya. (helsinki.fi)

A population is defined as a group of interacting organisms of the same species. (wikipedia.org)
and λόγος, logos, "knowledge") refers to the roughly same field of study, coming from the division of ecology into autecology-the study of individual species in relation to the environment-and synecology -the study of groups of organisms in relation to the environment-or community ecology. (citizendium.org)
The recovered ecology was more diverse than previously reported and dominated by organisms associated with animal gut microbiota. (cdc.gov)

If the population density falls and you are still feeding in season 2 or year 2, then food limitation of density is absent, and the change must have been produced by higher mortality in season 2 or higher emigration. (ubc.ca)

[1] However, biologists have for some time recognized that the more significant level of organization of a species is a population, because at this level the species gene pool is most coherent. (citizendium.org)

Lennart Persson is professor of aquatic ecology at Umeå University in Sweden. (princeton.edu)
For my Ph.D., I shifted my focus to the genetic and evolutionary aspects of small populations in a project on genetic drift and mating system variation in a South American aquatic plant. (uoguelph.ca)

In the 1940s ecology was divided into autecology-the study of individual species in relation to the environment-and synecology-the study of groups of species in relation to the environment. (wikipedia.org)

In this study, the MVP size and population growth rate of 36 fish species in the Yangtze River were estimated and compared with their life-history traits. (nature.com)
Study of populations in relation to environment, including environmental influences on density and distribution, age structure, and population size. (quizizz.com)
Study of the vital statistics of a population and how they change over time. (quizizz.com)
The study of genetic diversity of the WSMV populations and the occurrence of recombination events within the virus population should be considered in future disease management strategies, as well as local virus isolates should be incorporated into studies on the virus-vector relationship. (edu.pl)
I am currently a member of the Canadian Society of Ecology and Evolution, Society for the Study of Evolution, American Association for Higher Education and Botanical Society of America. (uoguelph.ca)
Also, we liked to do this study in Chicago because our research team has been actively conducting bird trapping around Chicago for the past seven years, predominantly to study the ecology and epidemiology of West Nile virus, so it was a great place to also understand how these same birds may be important for a different vectorborne disease, which was Lyme disease. (cdc.gov)

In fisheries and wildlife management, population is affected by three dynamic rate functions. (wikipedia.org)

By contrast if a single population is increasing in one year and declining in the next year, this could be an example of food limitation in a temporal sense. (ubc.ca)
This project is testing the prediction that different microhabitats will favour specific combinations of metabolic traits, leading to spatial and temporal structuring of metabolic phenotypes within and across populations. (gla.ac.uk)

In a population, carrying capacity is known as the maximum population size of the species that the environment can sustain, which is determined by resources available. (wikipedia.org)
According to Malthus, assuming that the conditions (the environment) remain constant (ceteris paribus), a population will grow (or decline) exponentially. (wikipedia.org)
K is the coefficient that represents the maximum number of individuals in a population that the environment can support. (explorable.com)

They also demonstrate how insights into the effects of maturation and reproduction limitation on community equilibrium carry over to the dynamics of size-structured populations and give rise to different types of cohort-driven cycles. (princeton.edu)
Understanding the processes that support population, community, and ecosystem dynamics is fundamental to sound management and conservation decisions. (frontiersin.org)
All manuscripts must be submitted directly to the section Population, Community, and Ecosystem Dynamics, where they are peer-reviewed by the Associate and Review Editors of the specialty section. (frontiersin.org)
These hypotheses are organized around relevance to extreme environments, population ecology, and community ecology. (nih.gov)
A fish assemblage is composed of all the species populations within the community. (encyclopedia.com)
In this course we will focused on the theoretical background of population and community ecology. (lu.se)
The latest schedule for the course Population and Community Ecology in the schedule software TimeEdit. (lu.se)

A population is a group of individuals of the same species. (explorable.com)
Our research group here is broadly interested in the ways in which wild animals are involved in the ecology of pathogens that have the potential to cause human disease. (cdc.gov)

Changes in seasonal movements and population dynamics of migratory birds in response to ongoing changes resulting from global climate changes are a topic of great interest to conservation scientists and birdwatchers around the world. (andrewisles.com)
It recognizes the potential impact of demographic transitions, population movements and climate change on the epidemiology of VPDs and immunization coverage. (who.int)

Population density of deer mice can differ in average density in 2 different forest types, and this spatial problem would have to be investigated as a search for the several possible mechanisms that could be behind this observation. (ubc.ca)

This can have a profound effect on mating patterns, genetic diversity, and ecology, with important implications for conservation and the evolutionary process. (uoguelph.ca)

Seasonal patterns shown in the population on Matiu/Somes Island and inferences about aspects of their life cycle are discussed. (vuw.ac.nz)
Many subtleties arise when scaling from vital rate regressions to population-level patterns, so we provide a set of diagnostics and guidelines to ensure that models are biologically plausible. (ru.nl)
Which of the following DOES NOT help determine patterns in human population growth? (quizizz.com)

The total number of individuals in a population is defined as a population size, and how dense these individuals are is defined as population density. (wikipedia.org)
Feeding an open population can lead to immigration and if your response variable is population density, you have an indirect effect of feeding. (ubc.ca)
Populations are affected by density-dependent and density-independent environmental factors . (explorable.com)
Density-dependent factors are things that are more likely to happen when the population density peaks. (explorable.com)
A population exhibiting a strong Allee effect will have a critical population size or density under which the population growth rate becomes negative. (insightmaker.com)

Population growth rate, which measures the growth of individuals in size and length. (wikipedia.org)
The population tree was generated displaying the three main populations of Coccidioides , number of individuals for each population as well the population distribution along the bar plots. (cdc.gov)
The results indicated that the MVP size ranged from 42 to 320 individuals, and instantaneous per-capita population growth rate ranged from 0.009 to 0.188 per year. (nature.com)
It is a per-capita rate at which the number of individuals in a population increases/decreases over a fixed period. (nature.com)
Population structure is dependent upon rates of reproduction and survivorship among individuals within the population. (encyclopedia.com)
The pattern of spacing among individuals within the boundaries of the population. (quizizz.com)
New individuals move into a population. (quizizz.com)
When individuals in a population move out or away. (quizizz.com)
Processes that add individuals to a population. (quizizz.com)
Processes that remove individuals from a population. (quizizz.com)
Which limiting factor would increase due to the number of individuals in a population? (quizizz.com)
Which limiting factor is independent of the number of individuals in a population? (quizizz.com)

The ecology of marine fishes is a broad topic that may be addressed only in general terms here. (encyclopedia.com)

We advance this field with several research projects, ranging from ecology of birds in European wetlands to the movement studies of wild rats in urban Helsinki and dryland-inhabiting bats in arid northern Kenya. (helsinki.fi)
The African Population and Health Research Center (APHRC) is an African-led and Africa-based international research institute engaged in multidisciplinary, evidence-based policy research. (washington.edu)
Cover letters should be addressed to: The Human Resources Officer African Population and Health Research Center, Inc APHRC Campus, Manga Close, off Kirawa Road, Kitisuru P. O. Box 10787-GPO, Nairobi NB. (washington.edu)
However, more research is needed in the field of microbial ecology to expand upon and develop new therapeutic strategies that address colonization, healthcare-associated infections (HAIs), and antimicrobial resistance, all while considering patient safety and the implications for a patient's microbiome. (cdc.gov)
Our research is primarily focused on the ecology and evolution of animal flight. (lu.se)
Our research lies at the interface of development, ecology, and evolution. (lu.se)

He is also known for Hardin's First Law of Ecology, which states "You cannot do only one thing", and used the familiar phrase "Nice guys finish last" to sum up the "selfish gene" concept of life and evolution. (goodreads.com)
Past history of successful introduction, recent status of introduced populations, and life history traits were used to identify parrots which, if introduced, appeared most likely to establish nonindigenous populations. (unl.edu)
MVP size and population growth rate were significantly associated with three life history traits: the age at maturity, generation time, and fecundity. (nature.com)

I am a plant ecologist interested in mechanisms driving dynamics of natural populations. (cas.cz)

De Roos and Persson are true experts in this field and their arguments have particularly significant implications in both applied and basic ecology. (princeton.edu)
Hardin does not shrink from the startling implications of his argument, as he criticizes the shipment of food to overpopulated regions and asserts that coercion in population control is inevitable. (goodreads.com)

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