![]() The Carnivores, Cornell University Press, Ithaca, NY.įerguson, R. Peacemaking Among Primates, Harvard University Press, Cambridge, MA.Įwer, R. The Hunters or the Hunted? An Introduction to African Cave Taphonomy, University of Chicago Press, Chicago.ĭe Waal, F. Comment on “Intergroup aggression in chimpanzees and humans”. The Chimpanzees of the TaÏ Forest: Behavioral Ecology and Evolution, Oxford University Press, Oxford.īoone, J. The effects of leopard predation on grouping patterns in forest chimpanzees. (eds.), Coalitions and Alliances in Humans and Other Animals, Oxford University Press, Oxford, pp. Segmentary ‘warfare’and the management of conflict: Comparison of East African chimpanzees and patrilineal-patrilocal humans. The Behavioural Biology of Aggression, Cambridge University Press, New York.īoehm, C. Infanticide in chimpanzees: Review of cases and a new within-group observation from the Kanyawara study group in Kibale National Park. Observational study of behavior: Sampling methods. (eds.), The Human Revolution, Edinburgh University Press, Edinburgh, pp. The attacks support the view that intergroup violence is a persistent feature of chimpanzee societies and that the primary benefit attackers gain from them is reduced competition for resources.Īlexander, R. The injuries inflicted on the Mitumba male together with circumstantial evidence suggest that Kasekela males killed him. In 2002, observers found the body of an adolescent male from Mitumba following an incursion by Kasekela males into the area. The intensity and duration of the attack are comparable to other attacks that resulted in fatal injuries. The victim was alive but severely injured by the end of the attack. Also in 1998, Kasekela males attacked an adolescent male from Kalande. In 1998, Kasekela males captured 2 infants (sex unknown) from Kalande, one of which escaped and the other was killed and eaten. In 1993, Kasekela males killed and ate a female infant from Mitumba. We observed (3 cases) or inferred (1 case) males from the Kasekela community to attack members of their 2 neighboring communities: Mitumba and Kalande. We report 4 cases of intergroup violence that occurred in Gombe National Park, Tanzania, between 19. Despite considerable attention to chimpanzee intergroup violence, the number of observed cases remains small. ![]()
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