allopatric speciation

(redirected from Allopatric population)
Also found in: Encyclopedia.

allopatric speciation

A process in which two or more populations of the same (but geographically separated and non-interbreeding) species become less similar to each other over time, through mutation or survival advantages of different traits in differing environments, and eventually become distinct species.

allopatric speciation

the genetic differentiation of populations which are geographically separate to the point where they become separate SPECIES.
References in periodicals archive ?
We based these test temperatures on the thermal conditions in which thriving allopatric populations of S.
In theory, sexual selection and sexual conflict can cause rapid co-evolution of these proteins, generating a diversity of fertilization capacities among individuals within populations and reproductive isolation between allopatric populations (Palumbi, 2009).
In this study, we have obtained 24 additional maternal lineage mt16S sequences from allopatric populations of M.
No information is currently available concerning the relationships of the Beaver Lake allopatric population.
Among 12 allopatric populations of Desmognathus ochrophaeus, the highest degrees of isolation asymmetry were associated with intermediate levels of divergence, as predicted by the model for the evolution of asymmetric sexual isolation (Arnold et al.
Morphometric variation in allopatric populations of Aegla platensis (Crustacea: Decapoda: Anomura): possible evidence for cryptic speciation.
Cytogenetic and comparative morphology of two allopatric populations of Astyanax altiparanae Garutti & Britski, 2000 (Teleostei: Characidae) from upper rio Parana basin.
Detailed local data sets are beneficial for comparisons to allopatric populations of the same species (and closely related species) inhabiting similar and different environments.
The origin of hybrids is a consequence of a return to sympatry and the breakdown of isolating mechanisms, not the action of natural selection and drift on allopatric populations.
One of the limitations of comparative studies involving sympatric and allopatric populations is that for many of the species compared to date (e.
Morphometric analysis is a useful technique for solving taxonomic problems, such as studying and delimiting populations of the same species, or recognizing cryptic species in sympatric or allopatric populations (Calle et al.