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Dates

Year
2006

Citation

Krebs, Charles J., Kielland, Knut, Bryant, John, O'Donoghue, Mark, Doyle, Frank, McIntyre, Carol, DiFolco, Donna, Berg, Nathan, Carrière, Suzanne, Boonstra, Rudy, Boutin, Stan, Kenney, Alice J., Reid, Donald G., Bodony, Karin, Putera, Judy, Timm, Henry K., and Burke, Toby, 2013, Synchrony in the snowshoe hare (Lepus americanus) cycle in northwestern North America, 1970-2012: Canadian Journal of Zoology/Revue Canadienne de Zoologie, v. 91, no. 8, p. 562-572.

Summary

We measured stable carbon and nitrogen isotope ratios in guard hair of 81 populations of grizzly bears (Ursus arctos L., 1758) across North America and used mixing models to assign diet fractions of salmon, meat derived from terrestrial sources, kokanee (Oncorhynchus nerka (Walbaum in Artedi, 1792)), and plants. In addition, we examined the relationship between skull size and diet of bears killed by people in British Columbia. The majority of carbon and nitrogen assimilated by most coastal grizzly bear populations was derived from salmon, while interior populations usually derived a much smaller fraction of their nutrients from salmon, even in areas with relatively large salmon runs. Terrestrial prey was a large part of the diet where [...]

Contacts

Tags

Provenance

Data source
File Processing
File Process
Type
End Note
Reference Item
NWBLCC Test to validate 3364 records in xml format
Reference File
NWBLCC-20160527b.xml

Additional Information

Identifiers

Type Scheme Key
ISSN http://sciencebase.gov/vocab/identifierScheme 0008-4301

Citation Extension

journalCanadian Journal of Zoology/Revue Canadienne de Zoologie
parts
typeNotes
value670
typePages
value473-489
typeVolume
value84
typeNumber
value3
citationTypeJournal Article

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