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Metapopulation models examine patch dynamics over time to answer questions about spatial and demographic ecology. An important concept in metapopulation ecology is the rescue effect, where small patches of lower quality (i.e., sinks) are maintained by a seasonal influx of new immigrants. Metapopulation structure evolves from year to year, where ...
Population ecology is a sub-field of ecology that deals with the dynamics of species populations and how these populations interact with the environment. [15] It is the study of how the population sizes of species living together in groups change over time and space, and was one of the first aspects of ecology to be studied and modelled mathematically.
The diversity of species and genes in ecological communities affects the functioning of these communities. These ecological effects of biodiversity in turn are affected by both climate change through enhanced greenhouse gases, aerosols and loss of land cover [citation needed], and biological diversity, causing a rapid loss of biodiversity and extinctions of species and local populations.
Not only did Caughley clarify methods so that they would be more applicable to population ecology, but he also condensed material that he thought was useful. In "Analysis of Vertebrate Populations" he distilled analyses that he thought were most relevant to the field and chose those that were also easy to understand. [ 12 ]
Pest insect population dynamics; Pesticide refuge area; Physiological density; Pioneer organism; Polyphenism; Population; Population density; Population dynamics of fisheries; Population growth; Population momentum; Population pressure; List of population related meta concepts and meta lists; Predator satiation; Propagule pressure
Ecology: From Individuals to Ecosystems is a 2006 higher education textbook on general ecology written by Michael Begon, Colin R. Townsend and John L. Harper. Published by Blackwell Publishing, it is now in its fourth edition. The first three editions were published by Blackwell Science under the title Ecology: Individuals, Populations and ...
A good deal of microbial population biology may be described also as microbial evolutionary ecology. On the other hand, typically microbial population biologists (unlike microbial ecologists ) are less concerned with questions of the role of microorganisms in ecosystem ecology , which is the study of nutrient cycling and energy movement between ...
One of the most basic and milestone models of population growth was the logistic model of population growth formulated by Pierre François Verhulst in 1838. The logistic model takes the shape of a sigmoid curve and describes the growth of a population as exponential, followed by a decrease in growth, and bound by a carrying capacity due to ...