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Socioecology of the Guianan bearded saki, Chiropotes sagulatus

Gregory, L Tremaine
http://rave.ohiolink.edu/etdc/view?acc_num=kent1300284081

Abstract Details

2011, PHD, Kent State University, College of Arts and Sciences / School of Biomedical Sciences.
Bearded sakis (genus Chiropotes) are among the least studied primates in the world. This study documented social behavior, ecology, habitat use, and responses to seasonal changes in the Guianan bearded saki (Chiropotes sagulatus) in continuous forest in Brownsberg Nature Park, Suriname. The results of this study provide further support for existing information about this genus and make new contributions to our knowledge of these elusive animals. Social behavioral data demonstrated highly affiliative relationships between males within groups. There was a strong bias towards male-male partnerships during social interactions, and interactions were affiliative in 100% of cases. There was also initial documentation of all-male (sub)groups, and higher rates of affiliative behaviors between males when in all-male groups suggest that these times are potential opportunities for bond reinforcement. Results of the ecological data set demonstrate a response to seasonal changes in resource availability, and during the long dry season group size decreased, and activity patterns and diet composition changed. Group size also interacted with travel distance during the dry season resulting in smaller groups and shorter travel distances. While other primate species use some of these strategies to withstand periods of lower resource production in the forest, this study demonstrates that, similar to fission-fusion in Ateles and Pan, flexibility in group size is also used frequently by Chiropotes. In this study, innovative spatial ecological analyses using GIS technology showed preference patterns in habitat use. Sakis tended to use the forests on the slopes of the mountain, and they demonstrated patterns of slope use that showed initial indications of strategies to increase navigation efficiency. This study not only provides insight into bearded saki behavior, but it also expands our knowledge of patterns of male-male affiliativeness and potential ecological responses to seasonal resources changes in a genus characterized by seed predation and large group size.
Marilyn Noconk, PhD (Committee Chair)
Richard Meindl, PhD (Committee Member)
Chris Vinyard, PhD (Committee Member)
Oscar Rocha, PhD (Committee Member)
Raymond Craig, PhD (Committee Member)
214 p.
Ecology; Geographic Information Science; Physical Anthropology; Zoology
Bearded saki; Suriname; primate socioecology; platyrrhine; spatial ecology; Chiropotes sagulatus

Recommended Citations

Citations

  • Gregory, L. T. (2011). Socioecology of the Guianan bearded saki, Chiropotes sagulatus [Doctoral dissertation, Kent State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=kent1300284081

    APA Style (7th edition)

  • Gregory, L. Socioecology of the Guianan bearded saki, Chiropotes sagulatus. 2011. Kent State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=kent1300284081.

    MLA Style (8th edition)

  • Gregory, L. "Socioecology of the Guianan bearded saki, Chiropotes sagulatus." Doctoral dissertation, Kent State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=kent1300284081

    Chicago Manual of Style (17th edition)

kent1300284081
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© 2011, all rights reserved.
This open access ETD is published by Kent State University and OhioLINK.
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