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Research Article
Genetic evidence for dispersal by both sexes in the Central American Squirrel Monkey, Saimiri oerstedii citrinellus
Article first published online: 28 OCT 2011
DOI: 10.1002/ajp.21007
© 2011 Wiley Periodicals, Inc.
Additional Information
How to Cite
Blair, M.E. and Melnick, D.J. (2012), Genetic evidence for dispersal by both sexes in the Central American Squirrel Monkey, Saimiri oerstedii citrinellus. Am. J. Primatol., 74: 37–47. doi: 10.1002/ajp.21007
Publication History
- Issue published online: 21 NOV 2011
- Article first published online: 28 OCT 2011
- Manuscript Accepted: 2 SEP 2011
- Manuscript Revised: 16 AUG 2011
- Manuscript Received: 13 JUN 2011
Funded by
- NSF. Grant Number: BCS-0847912
- NSF IGERT program (NYCEP). Grant Number: DGE-0333415
- American Association of University Women
- the Margot Marsh Biodiversity Foundation
- the New York Consortium in Evolutionary Primatology
- Columbia University
- the International Primatological Society
- the American Society of Primatologists
- and the Northwest Primate Conservation Society
- Abstract
- Article
- References
- Cited By
Keywords:
- molecular ecology;
- sex-biased dispersal;
- Platyrrhini;
- Costa Rica
Abstract
Sex-biased dispersal (SBD) is common in many vertebrates, including primates. However, dispersal patterns in New World primates may vary among closely related taxa or populations in different local environments. Here, we test for SBD in an endangered New World primate, the Central American Squirrel Monkey (Saimiri oerstedii citrinellus). Previous studies of behavioral ecology suggest predominantly female dispersal in S.o. oerstedii in the Southern Pacific region of Costa Rica. However, our genetic data do not support strongly female-biased dispersal in S.o. citrinellus in the Central Pacific region. Our tests for SBD using microsatellite data including comparisons of isolation-by-distance, AIc, and FST values between males and females were not significant. Also, we found greater population genetic structure in mitochondrial markers than in microsatellite markers, indicative of predominantly male dispersal. We conclude that both sexes disperse in S.o. citrinellus, and that males probably disperse over longer distances. We discuss how spatial and temporal variation among local populations should be taken into account when studying dispersal patterns and especially sex bias. Am. J. Primatol. 74:37–47, 2012. © 2011 Wiley Periodicals, Inc.