Ecology vocab 1.4-5 (ch. 5,6,7) - populations

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Population density

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Number of individuals per unit area

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Population distribution

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Description of how individuals are distributed with respect to one another.

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Age structure

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Relative number of individuals of each age in a population.

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Immigration

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Movement of individuals into a population

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Emigration

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movement of individuals out of a population

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Exponential growth

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Growth rate increases rapidly relative to total size.

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Logistic growth

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Growth pattern where a population's growth slows and stops after exponential growth.

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Carrying capacity

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Largest number of individuals a population can support.

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Limiting factor

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Any biotic or abiotic factor that controls population growth.

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Density-dependent limiting factor

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Depends on population size