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Reproductive biology of captive and free‐ranging spider monkeys

Reproductive biology of captive and free‐ranging spider monkeys Records from 42 zoos and from long‐term studies of wild populations were analysed to describe the reproductive biology of spider monkeys (Ateles spp.). Both data sets suggested that spider monkey females typically have their first infant between 7 and 8 years of age with an interbirth interval of approximately 32–36 months. Infant sex ratio for zoo populations was approximately 1 male to 1 female; infant sex ratios from wild populations were variable. Zoo records provided adequate sample size to suggest that interbirth interval was not influenced by the sex of the infant produced, and that the sex ratio and the probability of infant survival did not change with the number of infants the mother had produced. The findings of this study have implications with respect to the conservation of New World primate species. Since spider monkeys take a long time to reach sexual maturity and their interbirth interval is longer than that expected based on their body size, their populations may be slow to recover following disturbances. Thus, particular care should be taken for the protection of these species. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Zoo Biology Wiley

Reproductive biology of captive and free‐ranging spider monkeys

Zoo Biology , Volume 9 (1) – Jan 1, 1990

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References (19)

Publisher
Wiley
Copyright
Copyright © 1990 Wiley Subscription Services
ISSN
0733-3188
eISSN
1098-2361
DOI
10.1002/zoo.1430090102
Publisher site
See Article on Publisher Site

Abstract

Records from 42 zoos and from long‐term studies of wild populations were analysed to describe the reproductive biology of spider monkeys (Ateles spp.). Both data sets suggested that spider monkey females typically have their first infant between 7 and 8 years of age with an interbirth interval of approximately 32–36 months. Infant sex ratio for zoo populations was approximately 1 male to 1 female; infant sex ratios from wild populations were variable. Zoo records provided adequate sample size to suggest that interbirth interval was not influenced by the sex of the infant produced, and that the sex ratio and the probability of infant survival did not change with the number of infants the mother had produced. The findings of this study have implications with respect to the conservation of New World primate species. Since spider monkeys take a long time to reach sexual maturity and their interbirth interval is longer than that expected based on their body size, their populations may be slow to recover following disturbances. Thus, particular care should be taken for the protection of these species.

Journal

Zoo BiologyWiley

Published: Jan 1, 1990

Keywords: ; ; ;

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