The basic function of any model is to represent something in abstract form, simplifying the complex conditions encountered in nature. Because there are many variables that affect populations of animals, P6F0Ba model is often necessary to focus on the most important variables. A model allows the mathematical description of a population by considering a few important and estimable variables and consists of equations that represent assumptions about how a system works in nature. Solving the equations allows predictions or inferences about the natural system. Models of population dynamics have only rarely been used in animal science. However, mathematical models of population dynamics have been used in several other related areas, including human demographics, epidemiology, and wildlife management. This article reviews the basic concepts of mathematical models of population dynamics and related approaches that have been applied in the animal sciences.

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