Population dynamics and ecology. Medical search. Frequent questions

Populations, communities, and ecosystems are ecological units that can be considered along a scale of increasing system complexity and structure. (frontiersin.org)
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)
Overall, population ecology plays a crucial role in our understanding of how ecosystems function and provides valuable insights into the complex relationships between organisms and their environments. (echase.org)
Understanding population dynamics helps scientists predict potential impacts on ecosystems and implement conservation strategies when necessary. (echase.org)
By comprehending population dynamics, we can gain insight into the intricate interactions that occur within ecosystems. (echase.org)
Ecology: From Individuals to Ecosystems. (edu.au)
BECC researchers study how direct and indirect human impacts on the climate and ecosystems influence biodiversity and ecosystem functioning from local to global scales, and how knowledge about these dynamics may inform mitigation and adaptation decisions in the face of such changes. (lu.se)

The results of long-term monitoring will improve understanding on population size, sex ratios and health status of these species occurring in the iSimangaliso Wetland Park. (sharklife.co.za)
Additionally, by studying the relationships between deer and other species within the ecosystem-such as predators or competitors-ecologists can further elucidate how these interactions affect not only the deer population but also the overall health and stability of the entire community. (echase.org)
Population fluctuations have ecological consequences as they impact resource availability and competition among species. (echase.org)
Hantaviruses (family Bunyaviridae ) are the etiologic tion with hantaviruses increases with the population size agents of 2 distinct clinical syndromes: hemorrhagic of the reservoir host species, which can be driven to high fever with renal syndrome and hantavirus pulmonary syn- levels in response to events that enhance host survival, drome ( 1 , 2 ). (cdc.gov)
The course provides an introduction to basic concepts used in analyses of single-species population dynamics. (ntnu.edu)
Subjects covered include demography, population regulation and life history strategies in different animal and plant species. (ntnu.edu)
Weed Ecology looks at weeds from an ecological viewpoint, emphasizing the way in which one species interacts with others. (chipsbooks.com)
Within species, there is variation among populations, groups of animals in a particular area that interbreed. (wur.nl)
Population ecology is a major sub-field of ecology that deals with the dynamics of species populations and how these populations interact with the environment . (citizendium.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)
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)
[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)
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)
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)
How does the timing of important actions in species annual cycles influence population growth rates and ecological interactions? (lu.se)
Biodiversity: global and regional changes in biodiversity, reasons for global patterns of biodiversity, different concepts of biodiversity, the value of biodiversity, biodiversity strategies (preserves with unique habitats with maximum number of threatened species, so-called hotspots, versus preserving an acceptable diversity in the cultural landscape), consequences of introduction of new species, genetically modified organisms, and restoration ecology. (lu.se)

The development of the field of population ecology owes much to the science of demography and the use of actuarial life tables . (citizendium.org)
Population Dynamics and Demography, Sampling designs. (cnrs.fr)
I collaborate with Dr. Jörgen Ripa , Dr. Kjell Bolmgren , Dr. Nadiah Kristensen , Dr. Kenneth Schmidt and others to investigate how individuals should respond to climate change in terms of the timing of seasonal events and how timing affects demography and population densities. (lu.se)

Frontiers in Ecology and Evolution is member of the Committee on Publication Ethics. (frontiersin.org)
Mathematical models used to calculate changes in population demographics and evolution hold the assumption of no external influence. (wikipedia.org)
Ecology and Evolution 8: 5752-5764. (unine.ch)
I am interested in pollination ecology, in the evolution of plant-insect interactions and in the conservation of these communities. (cnrs.fr)
Ability to explain the major components of the theory of evolution and of the main sections of the science of ecology and biogeography, and a range of examples of the application of ecology. (bangor.ac.uk)
My background is in theoretical ecology and I apply various mathematical tools such as game theory, population dynamic models and optimization theory to study problems in ecology and evolution. (lu.se)
I belong to the Theoretical Population Ecology and Evolution Group ( ThePEG ). (lu.se)
Previously I have been a postdoc at the Evolution and Ecology Program IIASA , Austria and a visiting scholar at Imperial College (Silwood Park), London. (lu.se)
Collectively, our results provide key genomic context for these emerging pathogens and will facilitate future exploration of MAC ecology, evolution, and pathogenesis. (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)

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)
By examining these patterns, scientists can gain insight into the factors that influence population growth or decline, as well as the ecological processes that shape communities. (echase.org)
Whereas the other themes of the Contaminant Ecology Research Program focus on where, why, and how contaminants cycle and bioaccumulate in ecological systems, this theme is focused on determining what happens at environmentally relevant concentrations. (usgs.gov)
The ecological detective: Monographs in population biology. (scirp.org)
The loss of large animals affects two main ecological processes crucial for the tree reproductive cycle: seed dispersal of large seeds (e.g. provided by tapirs) and control of seed predator population (e.g. provided by large cats). (ufz.de)
Examples of such problems are the minimum size of viable populations, optimal harvest strategies of renewable resources and ecological effects of expected changes in climate. (ntnu.edu)
1. a foundation understanding of ecological theory at the organism, population and community levels. (edu.au)
Ecological elements are central to conservation conflict, and changes in their dynamics - for instance due to anthropogenic environmental change - are likely to influence the emergence of serious human-wildlife impacts and, consequently, social conflict. (stir.ac.uk)
We used mixed-effects models to examine the drivers of historic spatio-temporal dynamics in numbers of Greenland barnacle geese (Branta leucopsis) on the Scottish island of Islay to identify the ecological processes that have shaped the environment in which conflict between goose conservation and agriculture has been triggered. (stir.ac.uk)
Specified Elective Courses" must exclusively be selected from amongst a list of courses within the categories of either "Pollution Control and Modeling", or "Molecular Ecology and Microbial Biotechnology", or "Socio-Ecological Sustainability" concentration areas. (boun.edu.tr)
These results revealed persistent effects of past resources on current growth and support the importance of transient dynamics in natural ecological systems. (lu.se)
For many problems, I employ techniques known as Adaptive Dynamics to study ecological feedback on evolutionary processes. (lu.se)

Population dynamics has traditionally been the dominant branch of mathematical biology, which has a history of more than 220 years, although over the last century the scope of mathematical biology has greatly expanded. (wikipedia.org)
Population dynamics overlap with another active area of research in mathematical biology: mathematical epidemiology, the study of infectious disease affecting populations. (wikipedia.org)
The complexities inherent in population ecology The complexities inherent in population ecology require a multidisciplinary approach, integrating concepts from biology, mathematics, statistics, and environmental science. (echase.org)
We also show how an instructor or researcher can combine experimentation and theoretical ecology to produce simulations based on the ecology and biology of organisms. (scirp.org)
Population biology. (scirp.org)
However, since the early 2000s, research on the Kielder field voles has expanded considerably and the system has now been utilized for the study of host-parasite biology across many levels, including genetics, evolutionary ecology, immunology and epidemiology. (nih.gov)
Invasive Wild Pigs in North America: Ecology, Impacts and Management addresses all aspects of wild pig biology, ecology, damage and management in a single comprehensive volume. (nhbs.com)
Invasive Wild Pigs in North America provides comprehensive coverage of wild pig biology and ecology, techniques for management and research, and regional chapters. (nhbs.com)
The reserach group Marine Biology (BIOMAR) of the Université Libre de Bruxelles focuses on the bio-ecology of marine benthic invertebrates, especially echinoderms. (marinespecies.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)
Scientific analytical methods: vulnerability analysis (basic analytical methods on the viability of populations, 'Population Viability Analyses'), models in harvest theory, the scientific basis for creation of wildlife preserves, behavioural indicators in conservation biology, statistical analysis of population trends, and evaluation of conservation ecology studies. (lu.se)
An important part of the course is to provide deep knowledge about theory that is important for conservation biology, such as population dynamics in small populations and heterogeneous landscapes and conservation genetics. (lu.se)
I got an MSc degree in Biology from Lund university (1999) and I continued to finish my PhD at the Department of Ecology, division of Animal Ecology in 2004. (lu.se)
I am now employed at the Center for Environmental and Climate Research (CEC) and have my research group at the Department of Biology in the Ecology Building. (lu.se)

Recent addition to our research line includes the study of hyenas' behavioural ecology in Kenya. (helsinki.fi)
Animal behaviour ecology 7.1 What is behavioural ecology? (bangor.ac.uk)

Survival, migration patterns and population genetics will be studied and compared with patterns of large populations. (wur.nl)
There was concern that the large populations of displaced people in evacuation centres in Honiara, Solomon Islands were vulnerable to several communicable diseases (including vectorborne diseases such as malaria and dengue) after severe flooding in April 2014. (who.int)

Ability to recognise where ecology has been applied successfully, or unsuccessfully, in the management and conservation of biodiversity. (bangor.ac.uk)
That they have informed views on how ecology can be applied to manage and conserve biodiversity more effectively. (bangor.ac.uk)

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)
The ecology and genetics of fitness in Chlamydomonas. (bio.net)
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)

Rapid increases in certain populations can lead to overcrowding, increased predation risk, disease outbreaks, and subsequent declines. (echase.org)
competition, predation and food web dynamics. (mcgill.ca)
Similarly, the numbers of successful clutches in our two populations with low predation rate were positively related to the same index. (lu.se)

The formula can be read as follows: the rate of change in the population (dN/dT) is equal to growth (aN) that is limited by carrying capacity (1 − N/K). From these basic mathematical principles the discipline of population ecology expands into a field of investigation that queries the demographics of real populations and tests these results against the statistical models. (wikipedia.org)
By applying mathematical models and statistical analyses to real-world data sets, population ecologists strive to uncover general principles governing populations across different habitats and organisms. (echase.org)
The aim of the course is to give the students an in-depth understanding of general principles in population dynamics with emphasis on how they can be applied in practice to analyse different kinds of data. (ntnu.edu)
Principles of population dynamics, feedback loops, and population regulation. (mcgill.ca)
Aware of the basic principles underlying the science of ecology as outlined in the learning outcomes. (bangor.ac.uk)
Better understanding of the principles as evidenced by an ability to explain the major aspects of the science of ecology. (bangor.ac.uk)

Details for: Population dynamics and ecology of Bulinus globosus (mollusca, gastropoda in selected habitats in the Ifakara area, Tanzania. (who.int)
Ficedula hypoleuca population dynamics in peripheral habitats in Scandinavia. (lu.se)
Local populations in marginal habitats close to the distribution border are expected to vary more in size than central populations. (lu.se)
The numbers of initiated clutches in our populations were correlated with this index from the previous autumn, supporting the idea that populations in peripheral habitats are sensitive yardsticks for overall population size. (lu.se)
The source- tion range, the Scandinavian subalpine forests sink model (Murphy 2001) is one of the ways to form peripheral habitats, which were colonised rel- understand population dynamics. (lu.se)
This raises the question how the implies that some populations produce more flycatcher populations in these marginal habitats recruits than needed to cover mortality and popu- behave during a period of population decline. (lu.se)

Population ecology is a field of study that examines the dynamics and interactions of organisms within their respective environments. (echase.org)
The main objective of research in my laboratory is to understand how environmental pollutants interfere with and change biological processes in organisms from natural, wild populations. (lu.se)

Population dynamics: specialisation in population ecology theories, population ecology for small and fragmented populations (metapopulation ecology), population ecology and population distribution in heterogeneous landscapes, and 'source-sink' models. (lu.se)

Computer exercises with applications of these models, e g extinction risks in small populations, models in harvest theory, PVA, effects of habitat destruction, or genetic drift models. (lu.se)

To understand the dynamics of this population, ecologists would investigate various factors such as birth rates, death rates, migration patterns, and resource availability. (echase.org)
The study also suggests a way for teachers and professors to analyze population patterns with real data. (scirp.org)

Bastidas C, Benzie JAH, Fabricius KE (2002) Genetic differentiation among populations of the brooding soft coral Clavularia koellikeri on the Great Barrier Reef. (springer.com)

The aim is to develop a genomic tool to monitor inbreeding in wild populations. (wur.nl)
My thesis investigated how different genotypes contribute to biotransformation capacity in wild populations of Atlantic salmon (Salmo salar) carrying high loads of PCBs in their tissues. (lu.se)

This branch of science focuses on understanding how populations change in size, distribution, and genetic composition over time. (echase.org)

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)
Understanding the processes that support population, community, and ecosystem dynamics is fundamental to sound management and conservation decisions. (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)
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)

The effective assimilation of this topic should consider basic aspects of population theory, which involves the conceptual understanding of mathematical models. (scirp.org)
Long-term population dynamics: Theory and reality in a peatland ecosystem. (unine.ch)
food web theory or population dynamics. (bio.net)
During the past few years I have studied phenological responses to climate change using game theory and population dynamic models. (lu.se)

This field of study often involves conducting field observations, collecting data on population demographics and behaviors, and analyzing this information using various quantitative methods. (echase.org)
However, population dynamics is a complex branch of population ecology that has an essentially quantitative nature. (scirp.org)

Population dynamics focusses on the study of demographics, such as growth and decline, and the environmental processes that driving them. (wur.nl)

Particular emphasis will be made to how these models can be used in analyses of the consequences for population viability of different kinds of human activities such as expected changes in climate, habitat destruction and fragmentation and harvesting. (ntnu.edu)

Demographic theories predict persistent population impacts of past resources, but few studies have experimentally tested such carry-over effects across generations or cohorts. (lu.se)

Population dynamics is the type of mathematics used to model and study the size and age composition of populations as dynamical systems. (wikipedia.org)

Simplified population models usually start with four key variables (four demographic processes) including death, birth, immigration, and emigration. (wikipedia.org)

An illustrated guide of theoretical ecology. (scirp.org)

The field of population ecology often uses data on life history and matrix algebra to develop projection matrices on fecundity and survivorship. (wikipedia.org)

Early-pulse colonies also produced more queen offspring, highlighting the critical nature of resource timing for the population, as well as colony, dynamics of a key pollinator. (lu.se)
I am the principal investigator of two interlinked projects in which we study how pollinator populations are affected by changed seasonal variation in flower resources and episodes of pesticide exposure. (lu.se)

Dynamics of biological invasions. (scirp.org)

major vole food supply (beechnut mast), climate factors (winter and spring temperatures), and human population density signs and symptoms are fever, headache, back pain, ab- on spatial and temporal occurrence of NE cases in Baden- dominal pain, and other gastrointestinal involvement. (cdc.gov)
Are climate data and drought indices good indicators of ecologically relevant soil moisture dynamics in drylands? (usda.gov)
Mostly indirectly, but also through direct mechanisms, climate change is becoming an increasingly significant threat to seabird populations globally. (researchgate.net)

After an epizootic has abated, terrestrial reservoir populations decrease, and reports of rabies in animals in a given locale can decline precipitously. (cdc.gov)

Mosquito populations are described in a stochastic compartmental setup in terms of reaction norms depending on the available food in the environment. (lu.se)

citation needed] The mathematical formula below can used to model geometric populations. (wikipedia.org)
In this study, we propose an alternative methodology for teaching basic concepts of population ecology at the high-school and undergraduate levels, using mathematical models and numerical simulations on a microcomputer. (scirp.org)
Complexity in ecology and conservation: Mathematical, statistical, and computational challenges. (scirp.org)

historical and current perspectives in applied and theoretical population and community ecology. (mcgill.ca)

Ecology: The Experimental Analysis of Distribution and Abundance. (edu.au)

Population ecologists also employ computer simulations and modeling techniques to predict how populations may respond to different scenarios or management interventions. (echase.org)
Population ecology: An introduction to computer simulations. (scirp.org)

These early studies were primarily concerned with understanding how parasites shape the characteristic cyclic population dynamics of their hosts. (nih.gov)

Our goal is to better understand how temporal resource peaks caused by mass-flowering crops or periods of food shortage influence population dynamics, competition and phenological adaptation among pollinators. (lu.se)

Population dynamics refers to the study of how populations change over time, including factors influencing their growth and decline. (echase.org)
Study of a population at Lizard Island (14°40′S, 145°28′E) on the GBR from October 1991 to January 1994 revealed that, as is typical of tropical alcyonarian corals, S. elegans is a gonochoric broadcast spawner with a 1:1 sex ratio. (springer.com)
During the last years of the study, all three populations seemed to recover. (lu.se)

Declining populations might indicate environmental degradation or habitat loss. (echase.org)
Within the USGS WERC waterbird breeding ecology program, Dr. Josh Ackerman and partners are studying habitat selection, movements, and factors influencing waterbird nest success and chick growth and survival. (usgs.gov)

Marine Ecology Progress Series 594. (uni-hamburg.de)

These variables interact with one another to determine whether the deer population will increase or decrease over time. (echase.org)
Conversely, if death rates surpass birth rates or emigration exceeds immigration, the rabbit population may decrease. (echase.org)
The decrease in population size since the start of this survey was most evident for the two sink populations. (lu.se)

Diplômé d'un doctorat en écologie, le cherche à mieux comprendre les effets qu'induisent les modifications de l'environnement à différentes échelles - du paysage à la parcelle - sur les communautés, les populations et les traits des invertébrés du sol. (cnrs.fr)

Here, we leveraged a unique collection of genomes to characterize MAC population structure, gene content, and within-host strain dynamics in unprecedented detail. (cdc.gov)

Geometric populations grow in discrete reproductive periods between intervals of abstinence, as opposed to populations which grow without designated periods for reproduction. (wikipedia.org)

Anatomy6

Organisms70

Diseases4

Chemicals and Drugs10

Analytical, Diagnostic and Therapeutic Techniques and Equipment28

Psychiatry and Psychology9

Phenomena and Processes88

Disciplines and Occupations13

Anthropology, Education, Sociology and Social Phenomena6

Technology, Industry, Agriculture9

Information Science8

Health Care53

Geographicals15

Ecosystems7

Species16

Demography3

Evolution11

Ecological12

Biology14

Behavioural ecology2

Large populations2

Biodiversity2

Genetics3

Predation3

Principles6

Habitats6

Organisms2

Heterogeneous landscapes1

Small populations1

Patterns2

Among populations1

Wild populations2

Genetic1

Ecosystem Dynamics4

Theory4

Quantitative2

Demographics1

Analyses1

Impacts1

Dynamical1

Demographic1

Theoretical ecology1

Field of population ecology1

Pollinator2

Biological1

Climate3

Terrestrial1

Stochastic1

Mathematical3

Community1

Abundance1

Computer simulations2

Parasites1

Influence population dynamics1

Study3

Habitat2

Marine1

Decrease3

Traits1

Characterize1

Periods1