Ecology Unit: Population Ecology (copy)

population

a group of organisms of all the same species that lives in a given area

emigration

movement of a population out of an area

immigration

movement of a population into an area

carrying capacity

largest population of a species that can be supported in an area

density-dependent factor

factor that does depend on the number of organisms in an area; like the spread of disease

density-independent factor

factor that does not depend on the number of organisms in an area; like a tornado

exponential growth

Population growth that would occur under ideal conditions with unlimited resources

logistic growth

Population growth that slows or stops following a period of exponential growth

limiting factor

Something that keeps a population from growing infinitely

population ecology

The study of members of species and how they live together in a specific area.

population density

The number of individuals in a species in an area