نتایج جستجو برای: black bear

تعداد نتایج: 159136  

2014
Heather M. Bryan Chris T. Darimont Paul C. Paquet Katherine E. Wynne-Edwards Judit E. G. Smits

Food availability can influence the nutritional and social dynamics within and among species. Our investigation focused on grizzly and black bears in coastal British Columbia, Canada, where recent and dramatic declines in their primary prey (salmon) raise concerns about potentially negative effects on bear physiology. We examined how salmon availability relates to stress and reproductive hormon...

2015
Liya Pokrovskaya Francesco Ferretti

In different groups of mammals the role of social learning in ontogeny of foraging behaviour is variable. Normally developed foraging skills are necessary for the survival of orphaned cubs, released into the wild after rehabilitation. The development of foraging behaviour in Asiatic black bears (Ursus thibetanus) has been poorly studied, and the role of learning from the mother remains undefine...

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