Bottleneck
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Revision as of 14:39, 7 March 2009 by Astamoulis (talk | contribs)
Definition of Bottleneck:
Bottleneck is a sudden decrease of the population in size, usually due to adverse environmental factors.
During bottlenecks, a population shrinks temporarily and therefore loses genetic variation. Bottlenecks also result from alterations in gene flow such as decreased migration, expansions into new habitats, or population subdivision.
This is the common definition for Bottleneck, other definitions can be discussed in the article
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