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Vocab 19.2

Measuring Populations

Growth Rate An expression of the increase in the size of an organism or population over a given period of time
Immigration The movement of an individual or group into an area
Emigration The movement of an individual or group out of an area
Exponential Model A model of population growth in which a constant and unlimited growth rate results in geometric increases in population size
Limiting Factor An environmental factor that prevents an organism or population from reaching its full potential of distribution or activity
Logistic Model A model of population growth that assumes that finite resource levels limit population growth
Carrying Capacity The largest population that an environment can support at any given time
Density-Independent Factor A variable that affects a population regardless of the population density, such as climate
Density-Dependent Factor A variable affected by the number of organisms present in a given area
Inbreeding The crossing or mating of plants or animals with close relatives
Created by: GutzwillerL19