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Article
Energetic consequences of contrasting winter migratory strategies in a sympatric Arctic seabird duet
Jérôme Fort, Auteur ; Harald Steen, Auteur ; Hallvard Strom, Auteur ; Yann Tremblay, Auteur ; Eirik Gronningsaeter, Auteur ; Emeline Pettex, Auteur ; Warren P. Porter, Auteur ; David Grémillet, AuteurAt the onset of winter, warm-blooded animals inhabiting seasonal environments may remain resident and face poorer climatic conditions, or migrate towards more favourable habitats. While the origins and evolution of migratory choices have been ex[...]
Article
Jorg Welcker, Auteur ; Ann M. A. Harding, Auteur ; Nina J. Karnovsky, Auteur ; Harald Steen, Auteur ; Hallvard Strom, Auteur ; Geir W. Gabrielsen, AuteurA bimodal foraging strategy has previously been described for procellariiform seabird species and is thought to have evolved in response to local resource availability being too low for adult birds to meet chick requirements and simultaneously m[...]
Article
Morten Frederiksen, Auteur ; Sebastien Descamps, Auteur ; Kjell Einar Erikstad, Auteur ; Anthony J. Gaston, Auteur ; H. Grant Gilchrist, Auteur ; David Grémillet, Auteur ; Kasper L. Johansen, Auteur ; Yann Kolbeinsson, Auteur ; Jannie F. Linnebjerg, Auteur ; Mark L. Mallory, Auteur ; Laura A. McFarlane Tranquilla, Auteur ; Flemming R. Merkel, Auteur ; William A. Montevecchi, Auteur ; Anders Mosbech, Auteur ; Tone K. Reiertsen, Auteur ; Gregory J. Robertson, Auteur ; Harald Steen, Auteur ; Hallvard Strom, Auteur ; Thorkell L. Thorarinsson, AuteurPelagic seabirds are exposed to an array of potential threats during the non-breeding period, and effective management of these threats on a large scale requires knowledge of which populations winter where. Thick-billed murres (Uria lomvia) are [...]
Article
Erlend Lorentzen, Auteur ; Remi Choquet, Auteur ; Harald Steen, AuteurBreeding success in cliff-nesting seabirds has until now been estimated through repeated nest checks by field workers during the breeding season. The use of automatic cameras offers a method for collecting mark-recapture data that can be modelle[...]
Article
Jorg Welcker, Auteur ; Harald Steen, Auteur ; Ann M. A. Harding, Auteur ; Geir W. Gabrielsen, AuteurSexual differences in foraging and provisioning behaviour have been observed in several size-dimorphic seabird species. These differences are usually thought to be driven by size-related mechanisms such as the ability to compete for food or defe[...]
