[ vahy-kair-ee-uhns, vi- ]
/ vaɪˈkɛər i əns, vɪ- /
the geographical separation and isolation of a subpopulation, resulting in the original population's differentiation as a new variety or species.
QUIZ YOURSELF ON THESE WORDS FROM BROWN GIRL DREAMING!
Visualize yourself passing this quiz on words from Jacqueline Woodson’s exquisite verse novel “Brown Girl Dreaming,” and then take the quiz to prove you can do it! (Because you can.)
Question 1 of 10
What does “barren” mean?
Also called vicariance biogeography.
OTHER WORDS FROM vicariancevi·car·i·ant, adjective, noun
Words nearby vicariance
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Scientific definitions for vicariance
[ vī-kâr′ē-əns, vĭ- ]
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. See also speciation.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.