Hunting Decisions in Wild Chimpanzees

Hunting Decisions in Wild Chimpanzees HUNTING DECISIONS IN WILD CHIMPANZEES by CRAIG B. STANFORD1), JANETTE WALLIS2,3), ESLOM MPONG02) and JANE GOODALL1,4) (1Department of Anthropology, University of Southern California, Los Angeles, CA 90089 2 Gombe Stream Research Centre, Box 185, Kigoma, Tanzania 3 Dept. of Obstetrics and Gynecology, University of Oklahoma College of Medicine, Oklahoma City, OK 73190 4 Box 727, Dar es Salaam, Tanzania) (With 5 Figures) (Ace. 17-VI-1994) Summary While field studies of wild chimpanzees have investigated the proximate determinants of hunting success, little attention has been paid to the decision to hunt. We present evidence from Gombe National Park, Tanzania, showing that the social factors that most strongly influence the decision to hunt red colobus monkeys are the presence of female chimpanzees with anogenital sexual swellings in the foraging party, the number of adult and adolescent males in the party, and the total size of the foraging party. Of these, the presence of one or more swollen females was the best predictor of a decision to undertake hunts of red colobus groups at all but the smalles chimpanzee foraging party size. Two likely explanations for this pattern are discussed. First, swollen females may be a primary influence on male grouping patterns, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Behaviour Brill

Hunting Decisions in Wild Chimpanzees

Behaviour, Volume 131 (1-2): 1 – Jan 1, 1994

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Publisher
Brill
Copyright
© 1994 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0005-7959
eISSN
1568-539X
D.O.I.
10.1163/156853994X00181
Publisher site
See Article on Publisher Site

Abstract

HUNTING DECISIONS IN WILD CHIMPANZEES by CRAIG B. STANFORD1), JANETTE WALLIS2,3), ESLOM MPONG02) and JANE GOODALL1,4) (1Department of Anthropology, University of Southern California, Los Angeles, CA 90089 2 Gombe Stream Research Centre, Box 185, Kigoma, Tanzania 3 Dept. of Obstetrics and Gynecology, University of Oklahoma College of Medicine, Oklahoma City, OK 73190 4 Box 727, Dar es Salaam, Tanzania) (With 5 Figures) (Ace. 17-VI-1994) Summary While field studies of wild chimpanzees have investigated the proximate determinants of hunting success, little attention has been paid to the decision to hunt. We present evidence from Gombe National Park, Tanzania, showing that the social factors that most strongly influence the decision to hunt red colobus monkeys are the presence of female chimpanzees with anogenital sexual swellings in the foraging party, the number of adult and adolescent males in the party, and the total size of the foraging party. Of these, the presence of one or more swollen females was the best predictor of a decision to undertake hunts of red colobus groups at all but the smalles chimpanzee foraging party size. Two likely explanations for this pattern are discussed. First, swollen females may be a primary influence on male grouping patterns,

Journal

BehaviourBrill

Published: Jan 1, 1994

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