Movement of out of an area.

Emigration can be treated similarly to deaths in terms of a popuation's dynamics. That is, it represents a loss of individuals by a population.

Like deaths, a population's (or density) within a given area can be reduced to zero via emigration, though obviously with different consequences so far as the population itself is concerned.

See also migration as defined in a sense as well as as defined more generally. Contrast with immigration.