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population ecology, study of the processes that affect the distribution and abundance of animal and plant populations. A population is a subset of individuals of one species that occupies a particular geographic area and, in sexually reproducing species, interbreeds.
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.
Population ecology is the branch of ecology that works to understand the patterns and processes of change over time or space for populations of a single species. A species is typically defined as a group of organisms capable of interbreeding.
Population ecology is the field of ecology that describes how and why populations of organisms change over time. Population ecologists use population size, density and dispersion to study these changes. To obtain population size, methods such as quadrats and mark and recapture are sometimes used.
Population ecology is a theory that describes the organization as one among many organizations competing for resources in the greater environment. Once structured, the organization enters the environment and grows or dies as a consequence of circumstances largely beyond its control.
A population is a group of individuals of a single species that live in a particular area and interact with one another. Many of the central issues in ecology...
Colyvan and Ginzburg (2003a) also suggest that the laws of nature should define the places in the grand theory where explanation ends, or is unnecessary. In the case of the five principles of population dynamics, explanation ends with general systems theory.