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Looking into the pa...
Looking into the past : the reaction of three grouse species to climate change over the last million years using whole genome sequences
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- Kozma, Radoslav, 1987- (författare)
- Uppsala universitet,Zooekologi,Höglund lab
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- Melsted, Páll (författare)
- Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, Reykjavik, Iceland & deCODE Genetics/Amgen, Reykjavik, Iceland
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- Magnússon, Kristinn, P. (författare)
- The Icelandic Institute of Natural History, Borgir v. Nordurslod, Akureyri 600, Iceland & Department of Natural Resource Sciences, University of Akureyri, Borgir vid Nordurslod, Akureyri 600, Iceland & Biomedical Center, University of Iceland, Vatnsmyrarvegur 16, Reykjavik 101, Iceland
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- Höglund, Jacob (författare)
- Uppsala universitet,Zooekologi
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(creator_code:org_t)
- 2016-01-19
- 2016
- Engelska.
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Ingår i: Molecular Ecology. - : Wiley. - 0962-1083 .- 1365-294X. ; 25:2, s. 570-580
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Tracking past population fluctuations can give insight into current levels of genetic variation present within species. Analysing population dynamics over larger timescales can be aligned to known climatic changes to determine the response of species to varying environments. Here, we applied the Pairwise Sequentially Markovian Coalescent (PSMC) model to infer past population dynamics of three widespread grouse species; black grouse, willow grouse and rock ptarmigan. This allowed the tracking of the effective population size (Ne) of all three species beyond 1 Mya, revealing that (i) early Pleistocene cooling (~2.5 Mya) caused an increase in the willow grouse and rock ptarmigan populations, (ii) the mid-Brunhes event (~430 kya) and following climatic oscillations decreased the Ne of willow grouse and rock ptarmigan, but increased the Ne of black grouse and (iii) all three species reacted differently to the last glacial maximum (LGM) – black grouse increased prior to it, rock ptarmigan experienced a severe bottleneck and willow grouse was maintained at large population size. We postulate that the varying PSMC signal throughout the LGM depicts only the local history of the species. Nevertheless, the large population fluctuations in willow grouse and rock ptarmigan indicate that both species are opportunistic breeders while black grouse tracks the climatic changes more slowly and is maintained at lower Ne. Our results highlight the usefulness of the PSMC approach in investigating species’ reaction to climate change in the deep past, but also that caution should be taken in drawing general conclusions about the recent past.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Nyckelord
- climate change
- effective population size
- pairwise sequentially Markovian coalescent
- Pleistocene
- Tetraoninae
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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