Definition
noun, plural: vicariances
(biology)
The separation of a large group of organisms from the population due to a geographic barrier.
(geology)
The geologic event which produces geographic barrier, such as volcano, river, earthquake, etc.
Supplement
Word origin: From vicariant, from Latin vicārius, vicarious, “substitute, deputy” (adj. and n.), from vicis “turn, change, exchange, substitution.
Related forms: vicariant (adjective), vicarious (adjective).
See also: vicariant speciation, allopatry.
Dictionary > Vicariance
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