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Ecosystem 5.1

Vocabulary Words

TermDefinition
Density (population) Groups of individuals belonging to the same species that live in the same region at the same time.
Distribution The geographical area within which that species can be found. Within that range, dispersion is variation in local density.
Age structure The distribution of ages of individuals of a population.
Immigration Individual/organism permanently moves from one area to another thus affecting the new population it has entered.
Emigration To migrate from one or natural habitat to another.
Exponential growth When the resources availability is unlimited in the habitat, the population of an organism living in the habitat grows in an exponential or geometric fashion. (increases)
Logistic growth Occurs when the growth rate decreases as the population reaches carrying capacity.
Carrying capacity Maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment.
Created by: SANMAL3