parapatric speciation

(redirected from Parapatry)
Also found in: Medical.

parapatric speciation

[¦par·ə¦pa·trik ‚spe·shē′ā·shən]
(evolution)
Gradual speciation whereby new species are created from populations that maintain overlapping geographic zones of genetic contact.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Parapatry can be separated into hybridization parapatry, where the contacting taxa form a narrow hybrid zone, and ecological parapatry, where no hybridization occurs (Key, 1982).
Some of the geographical representatives of each group hybridize along their zones of contact, whereas others have reached the species level replacing each other without hybridization (parapatry).
Parapatry describes a geographic pattern in which the ranges of two species have separate but contiguous distributions without any physical barriers between them.
A characteristic feature of Albinaria distribution is the scarcity of genuine sympatry, with parapatry being the norm.
Parapatry and niche complementary of peruvian desert gecko (Phyllodactylus): the ambiguous role of competition.
They should be at least sister taxa, lack complete reproductive isolation, and occur in sympatry or parapatry (i.e., within the foraging distance of their pollinators).
There is often geneflow among nascent species, both in sympatry and in parapatry. Mallet (2005) studied natural interspecific hybridization in plants and various animal species.
Keywords: Adaptive radiation, biogeography, allopatry, parapatry, evolution
I implemented isolation by distance by assuming that a fraction [Epsilon] [greater than] 0.5 of carriers of allele a end up in their natal habitat (this could be called "parapatry").
Hybrids are usually encountered in intermediate environments, living in allopatry or parapatry with the parental species.
meahllmorum is of possible sympatry in some areas (especially in Missouri, and possibly in Oklahoma), parapatry in others, and probable intergradation in others.