, Volume 10, Issue 2, pp 103–148 | Cite as

An ecological study of chimpanzees in a savanna woodland

  • Akira Suzuki


From May, 1964, to September, 1965, the author made ecological and sociological studies of wild chimpanzees (Pan troglodytes) in Western Tanzania, East Africa. The vegetation of this area belongs to theBrachystegia andIsoberlinia savanna woodland. During the dry season, chimpanzees go out into the open forest and chiefly eat the hard seeds ofJulbernardia, Brachystegia, Isoberlinia, Pterocarpus, etc.

The continuity of the group of chimpanzees is not stable but temporary, as has been reported byGoodall, etc. The author termed such a temporary group “nomadic group.” A big nomadic group, such as that consisting of 43 individuals at Filabanga, seems to be one unit of a chimpanzee's society.

The nomadic range of the chimpanzees in the savanna woodland covers about 100 km2 (201 km2 in the Kasakati area). This is greater than that of the chimpanzees living in the forest, and such a large range has not been previously known among other non-human primates.


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  1. Azuma, S. &A. Toyoshima, 1961–62. Progress report of the survey of chimpanzees in their natural habitat, Kabogo point area, Tanganyika.Primates, 3(2): 61–70.Google Scholar
  2. —— & ——, 1965. Chimpanzees in Kabogo Point Area, Tanganyika. In:Monkeys and Apes,S. Kawamura &J. Itani (eds.), pp. 127–183, Chuokoron-sha, Tokyo.Google Scholar
  3. Carpenter, C. R., 1940. A field study in Siam of the behavior and social relations of the gibbon (Hylobates lar).Comparat. Psychol. Monogr., 16(5): 1–212.Google Scholar
  4. Cooke, H. B. S., 1963. Pleistocene mammal faunas of Africa, with particular reference to southern Africa. In:African Ecology and Human Evolution,F. C. Howell &F. Bourlière (eds.), pp. 65–116, Methuen & Co., Ltd., London.Google Scholar
  5. Dart, R. A., 1959.Adventures with the Missing Link. Harper & Brothers, New York.Google Scholar
  6. DeVore, I. &K. R. L. Hall, 1965. Baboon ecology. In:Primate Behavior,I. DeVore (ed.), pp. 20–110, Holt, Rinehart & Winston, Inc., New York.Google Scholar
  7. Eggeling, W. J., 1947. Observations on the ecology of the Budongo Rain-forest, Uganda.J. Ecol., 34: 28–87.Google Scholar
  8. Goodall, J., 1963. My life among wild chimpanzees.National Geographic, 124(2): 272–308.Google Scholar
  9. ——, 1965a. Chimpanzees of the Gombe Stream Reserve. In:Primate Behavior,I. DeVore (ed.), pp. 425–473, Holt, Rinehart & Winston, Inc., New York.Google Scholar
  10. ——, 1965b. New discoveries among African chimpanzees.National Geographic, 128(6): 802–831.Google Scholar
  11. Greenway, P. J., 1965.Second Draft Report on Vegetation Classification for the Approval of the Vegetation Committee. East African Agricultural Research Station.Google Scholar
  12. Hewes, G. W., 1961. Food transport and the origin of hominid bipedalism.Amer. Anthrop., 63: 687–710.Google Scholar
  13. Imanishi, K., 1961. The origin of human family: A primatological appraoch.Jap. J. Ethnol., 25: 119–130.Google Scholar
  14. ——, 1966.Formation of Human Society. Japan Broadcast Publishing Company, Ltd., Tokyo.Google Scholar
  15. Itani, J., 1964.Animals of Africa. Kawadeshobo-shinsha, Tokyo.Google Scholar
  16. ——, 1966. Social organization of chimpanzees.Shizen, 21(8): 17–30, Chuokoron-sha, Tokyo.Google Scholar
  17. ——, 1967. The social unit of chimpanzees.Primates, 8: 355–381.Google Scholar
  18. Ito, Y., 1963. Bipedalism and human evolution.Shiso, No. 468: 59–71.Google Scholar
  19. Izawa, K. &J. Itani, 1966. Chimpanzees in Kasakati Basin, Tanganyika. (I) Ecological study in the rainy season 1963–1964.Kyoto Univ. African Studies, 1: 73–156Google Scholar
  20. Kaufmann, H., 1910. Die Auin, Ein Beitrag zur Buschmann forschung.Mitteilungen aus den Deutschen Schutzgebieten, 23: 135–160.Google Scholar
  21. Kawabe, M., 1966. One observed case of hunting behavior among wild chimpanzees living in the savanna woodland of Western Tanzania.Primates, 7: 393–396.Google Scholar
  22. Kawai, M. &H. Mizuhara, 1958. An ecological study on the wild mountain gorilla (Gorilla gorilla beringei).Primates, 2: 1–42.Google Scholar
  23. ——, 1965. An ecological study on the wild mountain gorilla. In:Monkeys and Apes,S. Kawamura &J. Itani (eds.), pp. 71–126, Chuokoron-sha, Tokyo.Google Scholar
  24. Kortlandt, A., 1962. Observing chimpanzees in the wild.Scientific American, 206(5): 128–138.Google Scholar
  25. Kortlandt, A., 1965. Some results of a pilot study on chimpanzee ecology. Zoologisch Lab., Univ. van Amsterdam.Google Scholar
  26. Lebzelter, V., 1934. Eingeboren-Kulturen in Südwest- und Südafrika Vol. 2. Karl W. Hiersemann, Leipzig. pp. 301–306.Google Scholar
  27. McClure, H. E., 1964. Some observation of Primates in climax diptocarp forest near Kuala Lumpur, Malaya.Primates, 5(3–4): 39–58.Google Scholar
  28. Nissen, H. W., 1931. A field study of the chimpanzee.Comp. Psychol. Monogr., 8(1): 1–122.Google Scholar
  29. Oakly, K. P., 1957.Man the Tool-maker. University of Chicago Press, Chicago.Google Scholar
  30. ——, 1961. On man's use of fire, with comments on tool-making and hunting. In:Social Life of Early Man,S. L. Washburn (ed.), pp. 176–193. Viking Fund Publications in Anthropology, No. 31, Wenner-Gren Foundation, New York.Google Scholar
  31. Reynolds, V., 1963. An outline of the behavior and social organization of forest-living chimpanzees.Folia primat., 1(2): 95–102.Google Scholar
  32. ——, 1965. Chimpanzees of the Budongo forest. In:Primate Behavior,I. DeVore (ed.), pp. 368–424. Holt, Rinehart & Winston, Inc., New York.Google Scholar
  33. Robinson, J. T., 1958. The origin and adaptive radiation of theAustralopithecines.Am. J. Phys. Anthropol., 11(1): 120–138.Google Scholar
  34. Schaller, G., 1963.The Mountain Gorilla: Ecology and Behavior. Univ. of Chicago Press, Chicago.Google Scholar
  35. ——, 1965. The behavior of the mountain gorilla. In:Primate Behavior,I. DeVore (ed.), pp. 324–367. Holt, Rinehart & Winston, Inc., New York.Google Scholar
  36. Schapera, I., 1930.The Koisan Peoples of South Africa. London.Google Scholar
  37. Simons, E. L., 1963. Some fallacies in the study of Hominid phylogeny.Science, 141: 879–889.Google Scholar
  38. Story, R., 1958. Some plants used by the Bushmen in obtaining food and water.Botanical Survey Memoir No. 30, Department of Agriculture, Division of Botany, Pretoria.Google Scholar
  39. Suzuki, A., 1965. An ecological study of wild Japanese monkeys in snowy areas: Focused on their food habits.Primates, 6: 31–72.Google Scholar
  40. ——, 1966. On the insect-eating habits among wild chimpanzees living in the savanna woodland of Western Tanzania.Primates, 7(4): 481–487.Google Scholar
  41. Tomita, K., 1966. The sources of food for the Hadzapi tribe: The life of hunting tribe in East Africa.Kyoto Univ. African Studies, 1: 157–171.Google Scholar
  42. Trapnell, C. G., 1962. The natural vegetation of East Africa. In:The Natural Resources of East Africa,E. W. Russell (ed.), Hawkins Ltd., Nairobi.Google Scholar
  43. Warner, W. L., 1937.A Black Civilization: A Social Study of Australian Tribe. Harper & Brother, New York.Google Scholar
  44. Washburn, S. L. &I. DeVore, 1961. Social behavior of baboons and early man. In:Social Life of Early Man,S. L. Washburn (ed.), pp. 91–105. Viking Fund Publications in Anthropology, No. 31, Wenner-Gren Foundation, New York.Google Scholar

Copyright information

© Japan Monkey Centre 1969

Authors and Affiliations

  • Akira Suzuki
    • 1
  1. 1.Laboratory of Physical AnthropologyKyoto UniversityJapan

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