Totally isolated human populations are very rare. In Chapter 16, we shall study several cases of human populations which have remained separated from other groups for some time (for example, the Kel Kummer Tuareg, or the Bedik tribesmen of Senegal). Apart from a few such extreme cases, however, most human and animal populations communicate with other populations of the same species by migration. The amount of migration that will take place, and the exact type of migration that occurs, will depend on geographical, sociological and economic factors.
KeywordsStochastic Model Migration Rate Gene Frequency Deterministic Model Swedish Population
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