NDLI: Female Competition over Core Areas in Pan troglodytes schweinfurthii, Kibale National Park, Uganda

Content Provider	Springer Nature Link
Author	Kahlenberg, Sonya M. Emery Thompson, Melissa Wrangham, Richard W.
Copyright Year	2008
Abstract	Aggression is rare among wild female chimpanzees. However, in the Kanyawara chimpanzee community in Kibale National Park, Uganda, stable use of food-rich core areas is linked to increased reproductive success, suggesting that contest competition might occur over access to the highest-quality ranges. To examine this hypothesis, we studied aggression and dominance relationships among Kanyawara females during a 10-yr period that included the immigration of 5 females into the community. We tested 2 predictions: 1) that female-female aggression should intensify when immigrants enter the community because this is when core area access is determined and 2) that the quality of core areas should reflect relative female dominance relationships. In support of the first prediction, female-female aggression increased 4-fold when new immigrants were in the community, with rates peaking when there were multiple immigrants. This pattern was due primarily to aggression by resident mothers toward immigrants and featured coalitionary aggression, a rare behavior among female chimpanzees. In support of the second prediction, females occupying core areas high in foraging quality ranked high overall and higher than expected for their ages, whereas females occupying low-quality core areas were lower-ranking and ranked lower than expected for their ages. Together, the data indicate that though female aggression does not regularly occur in chimpanzees, contest competition continues to play an important role in determining long-term access to resources, an important correlate of reproductive success.
Starting Page	931
Ending Page	947
Page Count	17
File Format	PDF
ISSN	01640291
Journal	International Journal of Primatology
Volume Number	29
Issue Number	4
e-ISSN	15738604
Language	English
Publisher	Springer US
Publisher Date	2008-07-24
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	chimpanzees dispersal dominance intrasexual aggression ranging Animal Genetics and Genomics Zoology Anthropology Human Genetics Evolutionary Biology
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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