Journal
MOLECULAR ECOLOGY
Volume 20, Issue 20, Pages 4346-4370Publisher
WILEY
DOI: 10.1111/j.1365-294X.2011.05226.x
Keywords
Beringia; ecological niche model; evolution; phylogeography; Pleistocene refugia; shrew
Funding
- American Society of Mammalogists
- National Park Service
- Sigma Xi
- UNM Biology Department
- US Geological Survey's Alaska Regional Executive DOI on the Landscape initiative
- [NSF0196095]
- [0415668]
- Division Of Environmental Biology
- Direct For Biological Sciences [0415668] Funding Source: National Science Foundation
Ask authors/readers for more resources
Environmental processes govern demography, species movements, community turnover and diversification and yet in many respects these dynamics are still poorly understood at high latitudes. We investigate the combined effects of climate change and geography through time for a widespread Holarctic shrew, Sorex tundrensis. We include a comprehensive suite of closely related outgroup taxa and three independent loci to explore phylogeographic structure and historical demography. We then explore the implications of these findings for other members of boreal communities. The tundra shrew and its sister species, the Tien Shan shrew (Sorex asper), exhibit strong geographic population structure across Siberia and into Beringia illustrating local centres of endemism that correspond to Late Pleistocene refugia. Ecological niche predictions for both current and historical distributions indicate a model of persistence through time despite dramatic climate change. Species tree estimation under a coalescent process suggests that isolation between populations has been maintained across timeframes deeper than the periodicity of Pleistocene glacial cycling. That some species such as the tundra shrew have a history of persistence largely independent of changing climate, whereas other boreal species shifted their ranges in response to climate change, highlights the dynamic processes of community assembly at high latitudes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available