vicariance
noun Date: 1957 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

New Collegiate Dictionary. 2001.

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  • VICARIANCE — Comme il est dit du vicaire, le vicariant tient géographiquement la place d’un autre. Plus exactement, il s’agit d’une espèce animale occupant la niche écologique dans laquelle, ailleurs, une autre espèce, voisine, parfois presque quasiment… …   Encyclopédie Universelle

  • Vicariance — La vicariance est le processus qui conduit à la formation de taxons vicariants (du latin vicarius désignant le remplaçant). Ce processus est un processus de spéciation allopatrique, qui désigne la spéciation qui s applique aux différents morceaux …   Wikipédia en Français

  • vicariance — vīˈkerēən(t)s, və , ˈkar noun also vicariance biogeography ( s) Etymology: vicariant (herein) + ance : fragmentation of the environment (as by splitting of a tectonic plate) in contrast to dispersal as a factor in promoti …   Useful english dictionary

  • vicariance — the presence of closely related taxa or biota in different geographical areas; these have been separated by a natural barrier, a vicariant event, e.g. the rise of a mountain range isolating drainages …   Dictionary of ichthyology

  • vicariance — vi·car·i·ance (vī kârʹē əns, kărʹ , vĭ ) n. Biology 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… …   Universalium

  • vicariance — noun a) The separation of a group of organisms by a geographic barrier, resulting in differentiation of the original group into new varieties or species b) The geological event which produces such a barrier ( …   Wiktionary

  • vicariance — vi·car·i·ance …   English syllables

  • vicariance — /vəˈkɛəriəns/ (say vuh kairreeuhns) noun a feature of biogeography, stressing the effect of physical barriers, such as continental drift, mountain ranges, etc., in the differentiating of species. Compare dispersal (def. 3) …   Australian English dictionary

  • vicariance biogeography — noun see vicariance …   New Collegiate Dictionary

  • vicariance biogeography — noun see vicariance …   Useful english dictionary

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