Fast carnivores and slow herbivores: differential foraging strategies among grizzly bears in the Canadian Arctic

Categorizing animal populations by diet can mask important intrapopulation variation, which is crucial to understanding a species' trophic niche width. To test hypotheses related to intrapopulation variation in foraging or the presence of diet specialization, we conducted stable isotope analysi...

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Veröffentlicht in:	Oecologia 2011-04, Vol.165 (4), p.877-889
Hauptverfasser:	Edwards, Mark A, Derocher, Andrew E, Hobson, Keith A, Branigan, Marsha, Nagy, John A
Format:	Artikel
Sprache:	eng
Schlagworte:	Analysis Animal and plant ecology Animal feeding behavior Animal populations Animal, plant and microbial ecology Animals Bears BEHAVIORAL ECOLOGY Behavioral ecology - Original Paper Biological and medical sciences Biomedical and Life Sciences Canada Carbon Isotopes - analysis Carbon Isotopes - metabolism Carnivora - physiology Carnivores Carnivory Claws Diet Diet specialization Ecology Feeding Behavior - physiology Female Food Food Chain Foraging Foraging behavior Fundamental and applied biological sciences. Psychology General aspects Grizzly bear Grizzly bears Hair Herbivores Herbivory Hydrology/Water Resources Isotopes Life Sciences Male Mammalia Marine ecology Niche width Niches Nitrogen Isotopes - analysis Nitrogen Isotopes - metabolism Plant Sciences Plants Population Dynamics Stable isotopes Time Factors Toy industry Trophic position Ursidae - physiology Ursus arctos Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
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