Journal
AMERICAN JOURNAL OF PRIMATOLOGY
Volume 71, Issue 8, Pages 680-686Publisher
WILEY
DOI: 10.1002/ajp.20704
Keywords
life history; Pongo; mortality; survival; great apes
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For managers of captive populations it is important to know whether their management provides a species with the physical and social environment that maximizes its survivorship. To determine this, survivorship comparisons with wild populations and long-term evaluations of captive populations are important. Here we provide both for orangutans. We show that survivorship has increased during the past 60 years for captive orangutan populations in zoos. In addition, we show that survivorship of captive orangutans in the past used to be lower than for wild orangutans, but that for recently born (1986-2005) orangutans survivorship is not significantly different from the wild. This indicates that captive management in the past was suboptimal for orangutan survivorship, but that modern management of captive orangutans has increased their survivorship. We discuss the possible factors of modern management that could have influenced this. Am. J. Primatol. 71:680-686, 2009. (C) 2009 Wiley-Liss, Inc.
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