Individual and environmental factors associated with stereotypic behavior and fecal glucocorticoid metabolite levels in zoo housed polar bears
| Autor: | Shepherdson, David, Lewis, Karen D., Carlstead, Kathy, Bauman, Joan, Perrin, Nancy |
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| Zdroj: | In Applied Animal Behaviour Science August 2013 147(3-4):268-277 |
| Databáze: | ScienceDirect |
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