Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5901613 | General and Comparative Endocrinology | 2011 | 12 Pages |
Abstract
⺠Fecal glucocorticoid (GC) assay (3α,11β-dihydroxy-CM) and fecal androgen assay (epiandrosterone) were biologically validated and used to measure 830 fecal samples from 112 orangutans housed in European zoos. ⺠Species differences in fecal GC levels were strongest in larger zoo groups, with Bornean orangutans showing higher stress hormone levels than Sumatran orangutans under these conditions. ⺠Fecal androgen levels were higher in captive Bornean than in Sumatran orangutan males. ⺠Species differences in glucocorticoid and androgen output are likely linked to ecological and behavioral differences between the two islands.
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Authors
Tony Weingrill, Erik P. Willems, Nina Zimmermann, Hanspeter Steinmetz, Michael Heistermann,