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Ch. 4 Vocab.

TermDefinition
carrying capacity the maximum number of individuals in a species that an environment can support for the long term
density-dependent factor any factor in the environment that depends on the number of members in a population per unit area
density-independent factor any factor in the environment that does not depend on the number of members in a population per unit area
dispersion the pattern of spacing of a population within an area
emigration the term ecologists use to describe the number of individuals moving away from a population
immigration the term ecologists use to describe the number of individuals moving into a population
population density the number of organisms per unit area
population growth rate explains how fast a given population grows
age structure the number of males and females in each of three age groups: pre-reproductive stage, reproductive stage, and post-reproductive stage
demographic transition the change in population from high birth and death rates to low birth and death rates
demography the study of human population, size, density, distribution, movement, and birth and death rates
zero population growth occurs when births plus immigration equals deaths plus emigration
Created by: emarroquin33
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