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Circumpolar status of Arctic ptarmigan: Population dynamics and trends |
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| Authors: | Fuglei Eva Henden John-André Callahan Chris T Gilg Olivier Hansen Jannik Ims Rolf A Isaev Arkady P Lang Johannes McIntyre Carol L Merizon Richard A Mineev Oleg Y Mineev Yuri N Mossop Dave Nielsen Olafur K Nilsen Erlend B Pedersen Åshild Ønvik Schmidt Niels Martin Sittler Benoît Willebrand Maria Hørnell Martin Kathy |
| Institution: | 1.Norwegian Polar Institute, Fram Centre, Postbox 6606, Langnes, 9296, Troms?, Norway ;2.Dep. of Arctic and Marine Biology, University of Troms?, The Arctic University, 9019, Troms?, Norway ;3.Government of Newfoundland and Labrador, 117 Riverside Drive, Corner Brook, NL, A2H 0A2, Canada ;4.UMR 6249 Chrono-environnement, Université de Bourgogne Franche-Comté, 16 route de Gray, 25000, Besan?on, France ;5.Groupe de recherche en Ecologie Arctique, 16 rue de Vernot, 21440, Francheville, France ;6.Section of Ecosystem Ecology, Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000, Roskilde, Denmark ;7.IBPC SB RAS, Lenin Ave. 41, 677 980, Yakutsk, Russia ;8.Clinic for Birds, Reptiles, Amphibian and Fish, Justus-Liebig-University Giessen, Frankfurter Str. 91-93, 35392, Giessen, Germany ;9.US National Park Service, 4175 Geist Road, Fairbanks, AK, USA ;10.Alaska Department of Fish and Game, 1800 Glenn Highway, Suite 2, Palmer, AK, 99567, USA ;11.Komi Republic, Kommunisticheskaya 28, 167 982, Syktyvkar, Russia ;12.Yukon Research Ctr, Yukon College, PO Box 2799, Whitehorse, YT, Y1A 5K4, Canada ;13.Icelandic Institute of Natural History, Urridaholtsstr?ti 6-8, 210, Gardab?r, Iceland ;14.Norwegian Institute for Nature Research, 5685 Torgarden, 7485, Trondheim, Norway ;15.Arctic Research Centre, Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000, Roskilde, Denmark ;16.Chair for Nature Conservation and Landscape Ecology, University of Freiburg, Tennenbacherstra?e 4, 79106, Freiburg, Germany ;17.Inland Norway University of Applied Sciences, Postboks 400, 2418, Elverum, Norway ;18.Department of Forest and Conservation Sciences, University of British Columbia, 2424 Main Mall, Vancouver, V6T 1Z4, Canada ; |
| Abstract: | Rock ptarmigan (Lagopus muta) and willow ptarmigan (L. lagopus) are Arctic birds with a circumpolar distribution but there is limited knowledge about their status and trends across their circumpolar distribution. Here, we compiled information from 90 ptarmigan study sites from 7 Arctic countries, where almost half of the sites are still monitored. Rock ptarmigan showed an overall negative trend on Iceland and Greenland, while Svalbard and Newfoundland had positive trends, and no significant trends in Alaska. For willow ptarmigan, there was a negative trend in mid-Sweden and eastern Russia, while northern Fennoscandia, North America and Newfoundland had no significant trends. Both species displayed some periods with population cycles (short 3–6 years and long 9–12 years), but cyclicity changed through time for both species. We propose that simple, cost-efficient systematic surveys that capture the main feature of ptarmigan population dynamics can form the basis for citizen science efforts in order to fill knowledge gaps for the many regions that lack systematic ptarmigan monitoring programs. |
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