The importance of meat, particularly salmon, to body size, population productivity, and conservation of North American brown bears

  title={The importance of meat, particularly salmon, to body size, population productivity, and conservation of North American brown bears},
  author={Grant V. Hilderbrand and Charles C. Schwartz and Charles T. Robbins and Michael E. Jacoby and Thomas A. Hanley and Stephen M Arthur and Christopher Servheen},
  journal={Canadian Journal of Zoology},
We hypothesized that the relative availability of meat, indicated by contribution to the diet, would be positively related to body size and population productivity of North American brown, or grizzly, bears (Ursus arctos). Dietary contributions of plant matter and meat derived from both terrestrial and marine sources were quantified by stable-isotope analysis (δ13C and δ15N) of hair samples from 13 brown bear populations. Estimates of adult female body mass, mean litter size, and population… 

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