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10 Cards in this Set
- Front
- Back
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age structure
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The relative number of individuals of each age in a population.
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carrying capacity
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The maximum population size that can be supported by the available resources, symbolized as K.
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demography
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The study of statistics relating to births and deaths in populations.
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density-dependent factor
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Any factor influencing population regulation that has a greater impact as population density increases.
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density-independent factors
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Any factor influencing population regulation that acts to reduce population by the same percentage, regardless of size.
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exponential growth
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In populations, the increasingly accelerated rate of growth due to the increasing number of individuals being added to the reproductive base. Exponential growth is very seldom approached or sustained in natural populations.
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logistic population growth
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A model describing population growth that levels off as population size approaches carrying capacity.
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population density
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The number of individuals of a population per unit area or volume of living space.
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predator
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An organism that eats other living organisms.
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prey
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An organism eaten by another organism.
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