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Science. 2015 Jul 10;349(6244):177-80. doi: 10.1126/science.aaa7031.

CLIMATE CHANGE. Climate change impacts on bumblebees converge across continents.

Author information

1
Department of Biology, University of Ottawa, Ottawa, ON, Canada, K1N6N5. jkerr@uottawa.ca.
2
Department of Biology, University of Ottawa, Ottawa, ON, Canada, K1N6N5.
3
Faculty of Environmental Design, University of Calgary, Calgary, Alberta, Canada.
4
Department of Biology, York University, Toronto, Ontario, Canada.
5
School of Agriculture, Policy and Development, The University of Reading, Reading, UK.
6
Department of Zoology, Université de Mons, Mons, Belgium.
7
Department of Community Ecology, Helmholtz Centre for Environmental Research, Halle, Germany.
8
Wildlife Preservation Canada, Guelph, Ontario, Canada.
9
Gund Institute, University of Vermont, Burlington, VT, USA.
10
Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA.
11
Peabody Museum of Natural History, Entomology Division, Yale University, New Haven, CT, USA.
12
University of Alaska Museum, University of Alaska Fairbanks, Fairbanks, AK, USA.
13
United States Department of Agriculture, Agricultural Research Service, Subarctic Agricultural Research Unit, Fairbanks, AK, USA.

Abstract

For many species, geographical ranges are expanding toward the poles in response to climate change, while remaining stable along range edges nearest the equator. Using long-term observations across Europe and North America over 110 years, we tested for climate change-related range shifts in bumblebee species across the full extents of their latitudinal and thermal limits and movements along elevation gradients. We found cross-continentally consistent trends in failures to track warming through time at species' northern range limits, range losses from southern range limits, and shifts to higher elevations among southern species. These effects are independent of changing land uses or pesticide applications and underscore the need to test for climate impacts at both leading and trailing latitudinal and thermal limits for species.

PMID:
26160945
DOI:
10.1126/science.aaa7031
[Indexed for MEDLINE]
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