Use of sulfur and nitrogen stable isotopes to determine the importance of whitebark pine nuts to Yellowstone grizzly bears

Author: Felicetti Laura A   Schwartz Charles C   Rye Robert O   Haroldson Mark A   Gunther Kerry A   Phillips Donald L   Robbins Charles T  

Publisher: NRC Research Press

ISSN: 1480-3283

Source: Canadian Journal of Zoology, Vol.81, Iss.5, 2003-05, pp. : 763-770

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