Ecology Chp.5 (2)
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Process of dividing up resources in an ecosystem so that species with similar needs (overlapping ecological niches) use the same scarce resources, or in different places
(births + immigration) - (deaths + emigration)
A study of how these characteristics of population change in response to changes in environmental conditions
Population size is governed by:
Births, deaths, immigration, emigration
Clumping, Uniform dispersion, Random dispersion
The proportions of individuals at various ages. Can have a strong effect on how rapidly it increases in size
The rate at which the population of a species would grow if it had unlimited resources
Intrinsic rate of increase (r)
Species vary in their ____ or capacity for populations growth under ideal conditions
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