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Population Dynamics

Definition

Population dynamics refers to how populations change over time due to birth rates, death rates, migration patterns, and other factors that influence population size and composition.

Analogy

Think of a roller coaster ride where people get on and off at different points. The number of people on the ride keeps changing depending on how many get on (births) or get off (deaths). Similarly, population dynamics involve people entering (births) or leaving (deaths/migration) a population over time.

Related terms

Birth Rate: The number of live births per 1,000 individuals in a population within a specific time period.

Death Rate: The number of deaths per 1,000 individuals in a population within a specific time period.

Migration: The movement of individuals from one place to another with the intention of staying there for an extended period.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.