1.2 Living Earth
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9 Terms
population
a group of the same species living in the same area
immigration
individuals moving into an area
emigration
individuals moving out of an area
population growth rate
depends on environment decisions, rate determined by # of available resources
exponential growth
population size increases dramatically over a short amount of time
when does exponential growth occur?
when resources are plentiful/ no limiting factors
logistic growth
population begins with period of slow growth, followed by period of exponential growth, then becomes stable
carrying capacity
maximum population size of a species that a particular environment can consistently/normally support In terms of resources
density dependent limiting factor
affected by the number of individuals in an area, greater pop= greater effect