It provides a mathematical description of how those characteristics change over time. The field of science interested in collecting and analyzing these numbers is termed population demographics, also known as demography.īroadly defined, demography is the study of the characteristics of populations. As a tool for objectively studying populations, population ecologists rely on a series of statistical measures, known as demographic parameters, to describe that population (Lebreton et al. Scientists study a population by examining how individuals in that population interact with each other and how the population as a whole interacts with its environment. Members of a population often rely on the same resources, are subject to similar environmental constraints, and depend on the availability of other members to persist over time. A population is defined as a group of individuals of the same species living and interbreeding within a given area.
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