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Living on the edge of a shrinking habitat: the ivory gull, Pagophila eburnea, an endangered sea-ice specialist.
Gilg, Olivier; Istomina, Larysa; Heygster, Georg; Strøm, Hallvard; Gavrilo, Maria V; Mallory, Mark L; Gilchrist, Grant; Aebischer, Adrian; Sabard, Brigitte; Huntemann, Marcus; Mosbech, Anders; Yannic, Glenn.
Afiliación
  • Gilg O; Université de Bourgogne Franche Comté, UMR 6282 Biogéosciences, 21000 Dijon, France olivier.gilg@gmail.com.
  • Istomina L; Groupe de Recherche en Ecologie Arctique (GREA), 21440 Francheville, France.
  • Heygster G; Institute of Environmental Physics (IUP), University of Bremen, Bremen, Germany.
  • Strøm H; Institute of Environmental Physics (IUP), University of Bremen, Bremen, Germany.
  • Gavrilo MV; Norwegian Polar Institute, Fram Centre, 9296 Tromsø, Norway.
  • Mallory ML; National Park Russian Arctic, 168000, Archangelsk, Russia.
  • Gilchrist G; Department of Biology, Acadia University, Wolfville, Nova Scotia, Canada B4P 2R6.
  • Aebischer A; Environment Canada, National Wildlife Research Centre, Carleton University, Ottawa, Ontario, Canada.
  • Sabard B; Groupe de Recherche en Ecologie Arctique (GREA), 21440 Francheville, France.
  • Huntemann M; Groupe de Recherche en Ecologie Arctique (GREA), 21440 Francheville, France.
  • Mosbech A; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany.
  • Yannic G; Department of Bioscience and Arctic Research Center, Aarhus University, 4000 Roskilde, Denmark.
Biol Lett ; 12(11)2016 11.
Article en En | MEDLINE | ID: mdl-27807248
The ongoing decline of sea ice threatens many Arctic taxa, including the ivory gull. Understanding how ice-edges and ice concentrations influence the distribution of the endangered ivory gulls is a prerequisite to the implementation of adequate conservation strategies. From 2007 to 2013, we used satellite transmitters to monitor the movements of 104 ivory gulls originating from Canada, Greenland, Svalbard-Norway and Russia. Although half of the positions were within 41 km of the ice-edge (75% within 100 km), approximately 80% were on relatively highly concentrated sea ice. Ivory gulls used more concentrated sea ice in summer, when close to their high-Arctic breeding ground, than in winter. The best model to explain the distance of the birds from the ice-edge included the ice concentration within approximately 10 km, the month and the distance to the colony. Given the strong links between ivory gull, ice-edge and ice concentration, its conservation status is unlikely to improve in the current context of sea-ice decline which, in turn, will allow anthropogenic activities to develop in regions that are particularly important for the species.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Migración Animal / Charadriiformes / Cubierta de Hielo Límite: Animals Idioma: En Revista: Biol Lett Asunto de la revista: BIOLOGIA Año: 2016 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Migración Animal / Charadriiformes / Cubierta de Hielo Límite: Animals Idioma: En Revista: Biol Lett Asunto de la revista: BIOLOGIA Año: 2016 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Reino Unido