Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area.

ABSTRACT: One of the most prominent manifestations of the ongoing climate warming is the retreat of glaciers and ice sheets around the world. Retreating glaciers result in the formation of new ponds and lakes, which are available for colonization. The gradual appearance of these new habitat patches allows us to determine to what extent the composition of asexual Daphnia (water flea) populations is affected by environmental drivers vs. dispersal limitation. Here, we used a landscape genetics approach to assess the processes structuring the clonal composition of species in the D. pulex species complex that have colonized periglacial habitats created by ice-sheet retreat in western Greenland. We analysed 61 populations from a young (<50 years) and an old cluster (>150 years) of lakes and ponds. We iden

SUBMITTER: Haileselasie TH 

PROVIDER: S-EPMC5737836 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature