allopatric

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allopatric

[¦a·lō¦pa·trik]
(ecology)
Referring to populations or species that occupy naturally exclusive, but usually adjacent, geographical areas.
References in periodicals archive ?
John River drainage did not support the hypothesis that they all originated from the secondary contact between two monophyletic whitefish groups that evolved allopatrically in the Acadian and Atlantic glacial refugia during the last glaciation events (Bernatchez and Dodson 1990a).
In accounting for this pattern, by hard criteria the current data cannot discriminate between scenarios of primary selective influence along an environmental gradient versus secondary contact between allopatrically differentiated populations.
Studies of taxonomy and morphological variation in darters have revealed allopatrically distributed sister taxa for several species, suggesting that vicariant events have been a major force in the evolution of the group (Mayden 1988).
Although distantly related within the genus (Emsley 1965; Brown 1981; Brower 1994a), these two species share remarkable convergence of color patterns in their allopatrically or parapatrically distributed races, which range from southern Mexico to northern Argentina [ILLUSTRATION FOR FIGURE 2-3 OMITTED].
The tiger salamander, Ambystoma tigrinum, comprises a single species with 5-7 parapatrically or allopatrically distributed subspecies (Gehlbach 1967; Jones et al.
They are, for the most part, allopatrically distributed (Hall 1981), but are known to occur sympatrically at one locality: 2.