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Taking the beat of the Arctic : are lemming population cycles changing due to winter climate?

Gauthier, Gilles (författare)
Department of Biology and Centre d'études nordiques, Université Laval, Québec city, Québec, Canada
Ehrich, Dorothée (författare)
Department of Arctic and Marine Biology, UiT-The Arctic University of Norway, Tromsø, Norway
Belke-Brea, Maria (författare)
Department of Geography, Takuvik Joint International Laboratory and Centre d'études nordiques, Université Laval, Québec city, Québec, Canada
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Domine, Florent (författare)
Department of Chemistry, Takuvik Joint International Laboratory and Centre d'études nordiques, Université Laval, Québec city, Québec, Canada; CNRS-INSU, Paris, France
Alisauskas, Ray (författare)
Wildlife Research Division, Environment and Climate Change Canada, SK, Saskatoon, Canada
Clark, Karin (författare)
Environment and Natural Resources, Government of Northwest Territories, NT, Yellowknife, Canada
Ecke, Frauke (författare)
Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vilt, fisk och miljö,Department of Wildlife, Fish and Environmental Studies,University of Helsinki,Department of Wildlife, Fish, Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden; Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
Eide, Nina E. (författare)
Department of Terrestrial Ecology, Norwegian Institute for Nature Research, Norway
Framstad, Erik (författare)
Department of Terrestrial Ecology, Norwegian Institute for Nature Research, Norway
Frandsen, Jay (författare)
Parks Canada, Western Arctic Field Unit, NT, Inuvik, Canada
Gilg, Olivier (författare)
UMR 6249 Chrono-Environnement, CNRS, Université de Bourgogne Franche-Comté, Francheville, France; Groupe de recherche en Écologie Arctique, Francheville, France
Henttonen, Heikki (författare)
Terrestrial Population Dynamics, Natural Resources Institute Finland, Helsinki, Finland
Hörnfeldt, Birger (författare)
Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vilt, fisk och miljö,Department of Wildlife, Fish and Environmental Studies,Department of Wildlife, Fish, Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
Kataev, Gennadiy D. (författare)
Laplandskiy Nature Reserve, Murmansk Region, Monchegorsk, Russian Federation
Menyushina, Irina E. (författare)
Retired, Moscow, Russia
Oksanen, Lauri (författare)
Department of Arctic and Marine Biology, UiT - The Arctic University of Norway, Alta, Norway; Department of Biology, Section of Ecology, University of Turku, Turku, Finland
Oksanen, Tarja (författare)
Department of Arctic and Marine Biology, UiT - The Arctic University of Norway, Alta, Norway; Department of Biology, Section of Ecology, University of Turku, Turku, Finland
Olofsson, Johan (författare)
Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
Samelius, Gustaf (författare)
Snow Leopard Trust, WA, Seattle, United States
Sittler, Benoit (författare)
Groupe de recherche en Écologie Arctique, Francheville, France; Chair for Nature Conservation and Landscape Ecology, University of Freiburg, Freiburg, Germany
Smith, Paul A. (författare)
Wildlife Research Division, Environment and Climate Change Canada, ON, Ottawa, Canada
Sokolov, Aleksandr A. (författare)
Arctic Research Station of Institute of Plant and Animal Ecology, Russian Academy of Sciences, Ural Branch, Labytnangi, Russian Federation
Sokolova, Natalia A. (författare)
Arctic Research Station of Institute of Plant and Animal Ecology, Russian Academy of Sciences, Ural Branch, Labytnangi, Russian Federation
Schmidt, Niels M. (författare)
Department of Ecoscience and Arctic Research Centre, Aarhus University, Roskilde, Denmark
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 (creator_code:org_t)
 
Royal Society, 2024
2024
Engelska.
Ingår i: Proceedings of the Royal Society of London. Biological Sciences. - : Royal Society. - 0962-8452 .- 1471-2954. ; 291:2016
Relaterad länk:
https://urn.kb.se/re...
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https://doi.org/10.1...
https://res.slu.se/i...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Reports of fading vole and lemming population cycles and persisting low populations in some parts of the Arctic have raised concerns about the spread of these fundamental changes to tundra food web dynamics. By compiling 24 unique time series of lemming population fluctuations across the circumpolar region, we show that virtually all populations displayed alternating periods of cyclic/non-cyclic fluctuations over the past four decades. Cyclic patterns were detected 55% of the time (n = 649 years pooled across sites) with a median periodicity of 3.7 years, and non-cyclic periods were not more frequent in recent years. Overall, there was an indication for a negative effect of warm spells occurring during the snow onset period of the preceding year on lemming abundance. However, winter duration or early winter climatic conditions did not differ on average between cyclic and non-cyclic periods. Analysis of the time series shows that there is presently no Arctic-wide collapse of lemming cycles, even though cycles have been sporadic at most sites during the last decades. Although non-stationary dynamics appears a common feature of lemming populations also in the past, continued warming in early winter may decrease the frequency of periodic irruptions with negative consequences for tundra ecosystems.

Ämnesord

NATURVETENSKAP  -- Biologi -- Ekologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Ecology (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)

Nyckelord

Arctic tundra
climate warming
melt–freeze events
population dynamics
small mammals
transient dynamics

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