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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Variable resource defense by the Tana River crested mangabey
Behavioral Ecology and Sociobiology, Volume 31, No. 2, Year 1992
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Description
Behavioral observations over 16 months of two groups of Tana River crested mangabeys (Cercocebus galeritus galeritus) in East Africa provide evidence, contrary to previous reports, for site-specific aggression and territorial exclusion. In addition, movements and vocal responses to neighboring group's long-call vocalizations vary temporally, reflecting seasonal variation in food availability and distribution. Patterns of response to neighboring groups are consistent with the hypothesis that resources should be defended only when it is economic to do so. When fruit resources are rare intergroup interactions are infrequent and groups use separate areas. As fruit availability increases, the distribution of diet species influences the type of interaction; peaceful intergroup interactions generally occur when mangabeys eat uniformly distributed species and aggressive interactions occur when mangabeys eat species with patchy distributions. Differences between male vocal responses and group spatial responses may reflect conflicting objectives of territorial defense by males and females. © 1992 Springer-Verlag.
Authors & Co-Authors
Kinnaird, Margaret F.
United States, Gainesville
University of Florida
Kenya, Nairobi
National Museums of Kenya
Statistics
Citations: 101
Authors: 1
Affiliations: 2
Identifiers
Doi:
10.1007/BF00166344
ISSN:
03405443
e-ISSN:
14320762
Research Areas
Food Security
Study Locations
Multi-countries
Participants Gender
Male
Female