The Effects of Breeder Loss on Wolves
作者： Scott M. Brainerd , Henrik Andrén , Edward E. Bangs , Elizabeth H. Bradley , Joseph A. Fontaine
DOI: 10.2193/2006-305
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摘要: Abstract Managers of recovering wolf (Canis lupus) populations require knowledge regarding the potential impacts caused by loss territorial, breeding wolves when devising plans that aim to balance population goals with human concerns. Although ecologists have studied extensively, we lack an understanding this phenomenon as published records are sparse. Therefore, pooled data (n = 134 cases) on 148 territorial (75 M and 73 F) from our research accounts assess breeder pup survival, reproduction, social groups. In 58 71 cases (84%), ≥1 survived, number or sex remaining breeders (including multiple breeders) did not influence survival. Pups survived more frequently in groups ≥6 (90%) compared smaller (68%). Auxiliary nonbreeders benefited pups surviving 92% where auxiliaries were present 64% they absent. Logistic regression a...
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