The glacial refugia hypothesis indicates that during the height of the Pleistocene glaciations th... more The glacial refugia hypothesis indicates that during the height of the Pleistocene glaciations the temperate species that are today widespread in Paleartic survived in small and climatically favourable areas located on the southern limits of ice sheets. Refugial populations that evolved in allopatry are expected to have accumulated independent genetic differences that may be used as genetic markers to trace expansion routes. In the periods of interglaciations, recolonization of northern parts of the Eurasia from southern refugia went in several directions depends of organism mobility and suitable habitat presence on the north. After expanding their ranges from separate glacial refugia these diverged genomes meet and form “suture” zones. They seem to be narrow, genomically diverse and dissected and the source of most northward postglacial expansions. The Chiffchaff (Phylloscopus collybita) is one of the commonest forest bird species across Eurasia. The range of this species includes ...
The glacial refugia hypothesis indicates that during the height of the Pleistocene glaciations th... more The glacial refugia hypothesis indicates that during the height of the Pleistocene glaciations the temperate species that are today widespread in Paleartic survived in small and climatically favourable areas located on the southern limits of ice sheets. Refugial populations that evolved in allopatry are expected to have accumulated independent genetic differences that may be used as genetic markers to trace expansion routes. In the periods of interglaciations, recolonization of northern parts of the Eurasia from southern refugia went in several directions depends of organism mobility and suitable habitat presence on the north. After expanding their ranges from separate glacial refugia these diverged genomes meet and form “suture” zones. They seem to be narrow, genomically diverse and dissected and the source of most northward postglacial expansions. The Chiffchaff (Phylloscopus collybita) is one of the commonest forest bird species across Eurasia. The range of this species includes ...
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