vicariance

noun
vi·​car·​i·​ance | \ vī-ˈker-ē-ən(t)s How to pronounce vicariance (audio) , və- \

Definition of vicariance

: 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

First Known Use of vicariance

1957, in the meaning defined above

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The first known use of vicariance was in 1957

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Cite this Entry

“Vicariance.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vicariance. Accessed 17 Jan. 2021.

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