Reference Entry

founder effect

Edited by Elizabeth Martin and Robert Hine

in A Dictionary of Biology

Seventh edition

Published in print June 2016 | ISBN: 9780198714378
Published online September 2015 | e-ISBN: 9780191782770
founder effect

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The phenomenon occurring when a population is founded by a small sample of the entire species, perhaps just a handful of individuals. Chance dictates that these founder members will be genetically unrepresentative of the species as a whole, and that the genetic make-up of the new population will differ markedly from the main species population. The founder effect thus increases the likelihood of evolutionary divergence from the main species, and eventually the formation of a new species. ...

Reference Entry.  82 words. 

Subjects: Biological Sciences

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