define geographical isolation ?
Asked by | 1st Mar, 2010, 06:39: PM
It refers to the physical separation of members of a population. Populations may be physically separated when their original habitat becomes divided. Example: when new land or water barriers form.
Over long periods of time geographic isolation leads to speciation through divergent evolution because of environmental heterogeneity.
Answered by | 2nd Mar, 2010, 12:25: PM
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