Deme (biology)

Deme (biology)

In biology, a deme is a term for a local population of organisms of one species that actively interbreed with one another and share a distinct gene pool. When demes are isolated for a very long time they can become distinct subspecies or species.

In evolutionary computation a "deme" often refers to any isolated subpopulation subjected to selection as a unit rather than as individuals.

Contents

Examples

Various populations of the Gorilla can be understood by their geographical separation and have been assessed to determine distinct and disjointed gene pools.[1] The Polar bear, Ursus maritimus, is understood to have 19 identifiable demes, even though their circumpolar distribution allows some interchange among the demes.[2]

See also

References

Line notes

  1. ^ Andrea Beth Taylor and Michele Lynn Goldsmith, 2003
  2. ^ C. Michael Hogan, 2008

External links


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