Vicariance (from Latin vicarius, derived from vicis; change, alternation, stead) is a process by which the geographical range of an individual taxon, or a whole biota, is split into discontinuous parts by the formation of a physical or biotic barrier to gene flow or dispersal. == Concept == Vicariance of whole biotas occurs following large-scale g...
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http://en.wikipedia.org/wiki/Vicariance
(L: vicinus neighbouring; vicarius a substitute, interchange) the existence of closely related taxa or biota in different geographical regions that have been separated by the formation of a natural barrier to dispersal.
Found on
http://www.seafriends.org.nz/books/glossary.htm
Speciation which occurs as a result of the separation and subsequent isolation of portions of an orginal population.
Found on
http://www.ucmp.berkeley.edu/glossary/glossary_1.html
The subdivision of a species' originally large distribution into smaller and separated geographic fragments via some new geographic barrier or the fragmentation of the species' originally widespread habitat.
Found on
https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter
the separation or division of a group of organisms by a geographic barrier, such as a mountain or a body of water, resulting in differentiation of the original group into new varieties or species
Found on
https://www.encyclo.co.uk/local/22346
Separation or division of a group of organisms via a geographic barrier, resulting in differentiation into new species.
Found on
https://www.encyclo.co.uk/local/22658
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