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vicariance

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noun vi·car·i·ance \-ē-ən(t)s\

Definition of vicariance

  1. :  fragmentation of the environment (as by splitting of a tectonic plate) in contrast to dispersal as a factor in promoting biological evolution by division of large populations into isolated subpopulations —called also vicariance biogeography



1957

First Known Use of vicariance

1957

Rhymes with vicariance


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