allopatric speciation

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allopatric speciation

[¦al·ō¦pa·trik ‚spē·sē′ā·shən]
(ecology)
Differentiation of populations in geographical isolation to the point where they are recognized as separate species.
References in periodicals archive ?
To make comparisons between sympatric and allopatric population samples, and to broadly encompass any geographic genetic variation, we chose roughly half the sampled birds of each species from the Seward Peninsula (where they occur in sympatry) and half from areas away from the Seward Peninsula (Fig.
Detailed local data sets are beneficial for comparisons to allopatric populations of the same species (and closely related species) inhabiting similar and different environments.
Karyotypic studies of two allopatric populations of the genus Hoplias (Pisces, Erythrinidae).
Transmission dynamics and epidemiology of Rhodesian sleeping sickness in allopatric populations of Glossina pallidipes of Kenya.
Theatops spinicaudus comprises two allopatric populations, an eastern one that extends from southwestern Virginia and western North Carolina to east-central Alabama and eastern Tennessee, and a western one extending from central Iowa and northern Illinois to southern Arkansas and eastern Oklahoma (Shelley 2002:Fig.
Both hypotheses assume two allopatric populations, which possessed cycles shifted from each other by one year.
Most biomass estimates ranged from 10-30 kg/ha, although some allopatric populations exceeded 50 kg/ha (Fig.
However, testing the ability of male juncos to discriminate between the songs of two geographically distant and allopatric populations (>3,000 km of separation) may be a weak indicator of song's ability to signal population or subspecies origin in circumstances where dispersal between populations can occur and the acoustic environments of the two populations are nearly identical.