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Auteur Tore Slagsvold |
Documents disponibles écrits par cet auteur (9)
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Article
Tore Slagsvold, Auteur ; Karen L. Wiebe, AuteurAmong species that use similar resources, an individual may benefit by observing and copying the behavioural decision of a heterospecific. We tested the hypothesis of heterospecific social learning in passerine birds, namely that a migrant speci[...]Article
Marlene Gamelon, Auteur ; Vidar Grøtan, Auteur ; Anna L. K. Nilsson, Auteur ; Steinar Engen, Auteur ; James W. Hurrell, Auteur ; Kurt Jerstad, Auteur ; Adam S. Phillips, Auteur ; Ole W. Røstad, Auteur ; Tore Slagsvold, Auteur ; Bjørn Walseng, Auteur ; Nils C. Stenseth, Auteur ; Bernt-Erik Sæther, AuteurClimate change will affect the population dynamics of many species, yet the consequences for the long-term persistence of populations are poorly understood. A major reason for this is that density-dependent feedback effects caused by fluctuation[...]Article
Anna L. K. Nilsson, Auteur ; Endre Knudsen, Auteur ; Kurt Jerstad, Auteur ; Ole W. Rostad, Auteur ; Bjorn Walseng, Auteur ; Tore Slagsvold, Auteur ; Nils C. Stenseth, AuteurP>1. Climate change may have profound consequences for many organisms. We have studied fluctuations in a population of the white-throated dipper Cinclus cinclus during 31 years (1978-2008) in a river system in southern Norway in relation to both[...]Article
Ronny Steen, Auteur ; Geir A. Sonerud, Auteur ; Tore Slagsvold, AuteurIn altricial birds, parents are assumed to optimize the total food delivery to the brood given the time constraints set by self-feeding and food collecting. Older nestlings may require more food than younger ones, and nestlings may need more ene[...]Article
Prey delivery rates as estimates of prey consumption by Eurasian Kestrel Falco tinnunculus nestlings
Ronny Steen, Auteur ; Line M. Low, Auteur ; Geir A. Sonerud, Auteur ; Vidar Selås, Auteur ; Tore Slagsvold, AuteurIn altricial birds the type of prey selected by parents for their nestlings may affect the allocation of time and energy spent on hunting, preparing prey and feeding the nestlings, which in turn may affect the rate of provisioning. Raptors take [...]Article
Tore Slagsvold, Auteur ; Geir A. Sonerud, Auteur ; Helge E. Gronlien, Auteur ; Leif C. Stige, AuteurMost raptors take large prey for their size compared to other birds, but tear the prey apart into small morsels before swallowing. Little is known about how the efficiency of this prey handling varies among raptors, and how it relates to their f[...]Article
Tore Slagsvold, Auteur ; Geir A. Sonerud, AuteurCompared to other birds, most raptors take large prey for their size, and feeding bouts are extended. However, ingestion rate has largely been overlooked as a constraint in raptors' foraging and breeding ecology. We measured ingestion rate by of[...]