parapatric


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Related to parapatric: Parapatric speciation

parapatric

[¦par·ə¦pa·trik]
(ecology)
Referring to populations or species that occupy nonoverlapping but adjacent geographical areas without interbreeding.
References in periodicals archive ?
At the height of many of these glacial cycles, the current area of sympatry (Beringia) would have been much larger than it is today (Hopkins 1967, Kaufman and Manley 2004), suggesting that parapatric speciation could have occurred.
In contrast, the parapatric west coast transient population in the coastal waters of southeastern Alaska, British Columbia, and Washington State numbers more than 200 individuals (Ford et al.
They agreed with Miller (1964) that distributional patterns of pocket gophers were parapatric, and they supported the competitive exclusion explanation.
These individuals should be considered possible hybrids between species with parapatric distributions; otherwise, they may be regarded as aberrant individuals.
2000) or from parapatric models of speciation (Jiggins & Mallet, 2000), and complete isolation is rarely necessary to produce differentiation (Barton & Charlesworth, 1984).
significant levels of shape variation across parapatric boundaries), coupled with previous results concerning sexual isolation between parapatric populations in G.
We found 20 pairs of taxa with largely allopatric or parapatric distributions in close proximity in the region of the upper Ucayali River, and possible intergrades or hybrids between three of those taxon pairs.
The two ecologically similar congeners occupy parapatric distributions in the Cordillera de Talamanca and Cordillera Central, where the upper distribution of S.
However, there is a fundamental difference between the distributions of the three species; whereas sand seatrout and gray weakfish are functionally parapatric in their distribution, inhabiting primarily the GOM and Atlantic Ocean, respectively, silver seatrout are found in relatively large populations in both areas.