(redirected from Allopatric speciation)
Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


1. Occupying separate, nonoverlapping geographic areas. Used of organisms, especially populations of the same or closely related species.
2. Occurring among populations having such a distribution: allopatric speciation.

[allo- + Greek patrā, fatherland (from patēr, patr-, father; see pəter- in Indo-European roots) + -ic.]

al′lo·pat′ri·cal·ly adv.
al·lop′a·try (ə-lŏp′ə-trē) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biology) (of biological speciation or species) taking place or existing in areas that are geographically separated from one another. Compare sympatric
[C20: from allo- + -patric, from Greek patris native land]
ˌalloˈpatrically adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌæl əˈpæ trɪk)

(of populations of the same or similar species) occupying separate ranges and unavailable for interbreeding.
[1940–45; allo- + Greek patr(ía) fatherland (derivative of patḗr father) + -ic]
al`lo•pat′ri•cal•ly, adv.
al•lop•a•try (əˈlɒp ə tri) n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.allopatric - (of biological species or speciation) occurring in areas isolated geographically from one another
biological science, biology - the science that studies living organisms
sympatric - (of biological species or speciation) occurring in the same or overlapping geographical areas
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Populations that become geographically isolated can gradually acquire genetic differences through selection and drift, and eventually become reproductively isolated through the process of allopatric speciation. Past climate fluctuations and other dramatic environmental changes may have led to the extinction of widespread populations due to massive vegetation shifts such as those that occurred during postglacial reforestation (Slovak et al, 2012).
Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae), the Cayenne tick: phylogeography and evidence for allopatric speciation. BMC Evolutionary Biology 13: 267.
(2004) proposed that this species complex might probably have arisen due to a speciation process that assumes a constant evolution rate and allopatric speciation (Grant, 1985), a hypothesis based on Wright (1943) theory of "isolation by distance".
We argue instead that the observed niche partitioning between closely related species may actually be a consequence of niche diversification through reproductive interference after allopatric speciation. Next, we present as a case study of niche partitioning by reproductive interference our own research on two species of ladybirds (Harmonia) in Japan.
Despite limited sampling, however, the inferred sequence data indicate an allopatric speciation of the two sister taxa S.
On the one hand, increased geographical extent provides more opportunities for allopatric speciation (i.e., the "geographical potential for speciation" [7]).
The intricacies of the Gould-Eldredge interaction, their efforts to address their critics, and the relationship of their proposals concerning speciation models and in particular concerning Ernst Mayr's allopatric speciation model are thoroughly and fairly explicated.
In allopatric speciation, individuals of a species become geographically isolated from each other by external factors such as mountains or estuaries.
He follows with description of neural-developmental premises of evolutionary adaptation, including evolution and stress responses and behavioral adaptation to changes in environment, ontogeny, and intragenerational developmental plasticity; epigenetics of circumevolutionary phenomena and the mechanism of evolutionary change, including transgenerational developmental plasticity and the evolution of metazoans and their control system; and the origins of evolutionary novelty, evolution by loss or by reverting to ancestral characters, neural crest-determined evolutionary novelties, evolutionary convergences, species and allopatric speciation, and sympatric speciation.
Flightless insects are thus particularly constrained in their distribution by current conditions, and so these high mountains in East Africa provide a situation conducive to allopatric speciation.