Trophic cascades from wolves to grizzly bears or changing abundance of bears and alternate foods?

Publisher： John Wiley & Sons Inc

E-ISSN： 1365-2656|84|3|647-651

ISSN： 0021-8790

Source： JOURNAL OF ANIMAL ECOLOGY, Vol.84, Iss.3, 2015-05, pp. : 647-651

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