Social interactions and the life history of femalePan paniscus in Wamba, Zaire

Abstract

The unit-group of Pan paniscustends to form one large mixed party consisting of most of its members. Females usually stay in the party irrespective of their estrous state. They aggregate in the center of the party; and, older females stay in the most central part. Adult and adolescent sons of the old adult females stay in the central part more than males without mothers in the unit-group do. Females leave their natal unit-groups as older juveniles or in early adolescence and. settle in another unit-group after visiting several. Newly immigrated young females are eager to have social interactions with senior females to improve their social positions. Females become less eager to interact socially with other females when they have their own offspring. The strong bond between mother and son continues into his adulthood; and, females in old age become important members of the unit-group, both as the targets of association for younger females and as the mothers of highranking males. High social status of females seems related to their cohesive grouping tendency. The consistency of the multimale/multifemale party and the existence of prominent mother-offspring subunits are unique characteristics of P. paniscusamong the Pongidae. This social structure may provide a feasible model of the basic society from which human society evolved.

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References

  1. Andelman, S. J. (1987). Evolution of concealed ovulation in vervet monkeys (Cercopithecus aethiops).Am. Nat. 129: 785–799.

    Article  Google Scholar 

  2. Badrian, A., and Badrian, N. (1984). Social organization ofPan paniscus in the Lomako Forest, Zaire. In Susman, R. L. (ed.),The Pygmy Chimpanzee, Plenum Press, New York, pp. 325–346.

    Google Scholar 

  3. Dahl, J. F. (1986). Cyclic perineal swelling during the intermenstrual intervals of captive female pygmy chimpanzees (Pan paniscus).J. Hum. Evol., 15: 369–385.

    Article  Google Scholar 

  4. Dahl, J. F. (1987). Sexual initiation in a captive group of pygmy chimpanzees (Pan paniscus).Primate Report 16: 43–53.

    Google Scholar 

  5. de Waal, F. B. M. (1987). Tension regulation and nonreproductive functions of sex in captive bonobos (Pan paniscus).Natl. Geogr. Res. 3: 318–335.

    Google Scholar 

  6. Faruichi, T. (1984). Symmetrical patterns in non-agonistic social interactions found in unprovisioned Japanese macaques.J. Ethol. 2: 109–119.

    Article  Google Scholar 

  7. Faruichi, T. (1987). Sexual swelling, receptivity, and grouping of wild pygmy chimpanzee females at Wamba, Zaire.Primates 28: 309–318.

    Article  Google Scholar 

  8. Furuichi, T. (1988a).Biliano Sumu Moride (In the Forest of Pygmy Chimpanzees), Tokyo Kagaku Dohjin, Tokyo (in Japanese).

    Google Scholar 

  9. Furuichi, T. (1988b). Matriarchal dominance structure and its change in a wild group of pygmy chimpanzees. Paper presented at 4th annual meeting of Primate Society of Japan, Tsukuba.

  10. Goodall, J. (1983). Population dynamics during a fifteen-year period in one community of freeliving chimpanzees in the Gombe National Park, Tanzania.Z. Tierpsychol. 61: 1–60.

    Google Scholar 

  11. Goodall, J. (1986).The Chimpanzees of Gombe: Patterns of Behavior, Belknap Harvard, Cambridge, Mass.

    Google Scholar 

  12. Idani, G. (in preparation). Wamba pygmy chimpanzee (Pan paniscus) immigrant females’ social relationships with specific senior resident females.

  13. Ihobe, H. (1988). Male relationships in pygmy chimpanzees (Pan paniscus): The case of E2-group. Paper presented at 4th annual meeting of Primate Society of Japan, Tsukuba.

  14. Kano, T. (1980). Social behavior of wild pygmy chimpanzees (Pan paniscus) of Wamba: A preliminary report.J. Hum. Evol. 9: 243–260.

    Article  Google Scholar 

  15. Kano, T. (1982). The social group of pygmy chimpanzees (Pan paniscus) of Wamba.Primates 23: 171–188.

    Article  Google Scholar 

  16. Kano, T.(1986).Saigono Ruijinen (The Last Ape), Dohbutsusha, Tokyo (in Japanese).

    Google Scholar 

  17. Kano, T. (1989). The sexual behavior of pygmy chimpanzees. In Heltne, P. G., and Marquardt, L. (eds.),Understanding Chimpanzees, Harvard University Press, Cambridge, Mass.

    Google Scholar 

  18. Kano, T., and Mulavwa, M. (1984). Feeding ecology of the Pygmy chimpanzees (Pan paniscus) of Wamba. In Susman, R. L. (ed.),The Pygmy Chimpanzee, Plenum Press, New York, pp. 233–274.

    Google Scholar 

  19. Kawanaka, K. (1984). Association, ranging, and the social unit in chimpanzees of the Mahale Mountains, Tanzania.Int. J. Primstol. 5: 411–434.

    Article  Google Scholar 

  20. Kitamura, K. (1983). Pygmy chimpanzee association patterns in ranging.Primates 24: 1–12.

    Article  Google Scholar 

  21. Kuroda, S. (1979). Grouping of the pygmy chimpanzees.Primates 20: 161–183.

    Article  Google Scholar 

  22. Kuroda, S. (1980). Social behavior of the pygmy chimpanzees.Primates 21: 181–197.

    Article  Google Scholar 

  23. Kuroda, S. (1984). Interaction over food among pygmy chimpanzees. In Susman, R. L. (ed.),The Pygmy Chimpanzee, Plenum Press, New York, pp. 301–324.

    Google Scholar 

  24. Kuroda, S. (1989). Developmental retardation and behavioral characteristics in the pygmy chimpanzees. In Heltne, P. G., and Marquardt, L. (eds.),Understanding Chimpanzees, Harvard University Press, Cambridge, Mass.

    Google Scholar 

  25. Nishida, T. (1968). The social group of wild chimpanzees in the Mahale Mountains.Primates 9: 167–224.

    Article  Google Scholar 

  26. Nishida, T. (1979). The social structure of chimpanzees of the Mahale Mountains. In Hamburg, D. A., and McCown, E. R. (eds.),The Great Apes, Benjamin/Cummings, Menlo Park, Calif, pp. 73–121.

    Google Scholar 

  27. Nishida, T. (1989). Social conflicts among adult female chimpanzees, with special reference to interactions between resident and immigrant females. In Heltne, P. G., and Marguardt, L. (eds.),Understanding Chimpanzees, Harvard University Press, Cambridge, Mass.

    Google Scholar 

  28. Nishida, T., Hiraiwa-Hasegawa, M., Hasegawa, T., and Takahata, Y. (1985). Group extinction and female transfer in wild chimpanzees in the Mahale National Park, Tanzania.Z. Tierpsychol. 67: 284–301.

    Google Scholar 

  29. Pusey, A. (1979). Intercommunity transfer of chimpanzees in Gombe National Park. In Hamburg, D. A., and McCown, E. R. (eds.),The Great Apes, Benjamin/Cummings, Menlo Park, Calif., pp. 465–479.

    Google Scholar 

  30. Savage-Rumbaugh, E. S., and Wilkerson, B. J. (1978). Socio-sexual behavior inPan paniscus andPan troglodytes: A comparative study.J. Hum. Evol. 7: 327–344.

    Article  Google Scholar 

  31. Thompson-Handler, N., Malenky, R. K., and Badrian, N. (1984). Sexual behavior ofPan paniscus under natural conditions in the Lomako Forest, Equateur, Zaire. In Susman, R. L. (ed.),The Pygmy Chimpanzee, Plenum Press, New York, pp. 347–368.

    Google Scholar 

  32. White, F. J. (1988). Party composition and dynamics inPan paniscus.Int. J. Primatol. 9: 179–193.

    Google Scholar 

  33. White, F. J., and Wrangham, R. W. (1988). Feeding competition and patch size in the chimpanzee speciesPan paniscus andPan troglodytes.Behaviour 105: 148–164.

    Google Scholar 

  34. Wrangham, R. W. (1975).The Behavioural Ecology of Chimpanzees in Gombe National Park, Tanzania, Ph.D. dissertation, University of Cambridge, Cambridge.

    Google Scholar 

  35. Wrangham, R. W. (1979). Sex differences in chimpanzee dispersion. In Hamburg, D. A., and McCown, E. R. (eds.),The Great Apes, Benjamin/Cummings, Menlo Park, Calif., pp. 481–489.

    Google Scholar 

  36. Wrangham, R. W. (1986). Ecology and social relationships in two species of chimpanzee. In Rubenstein, D. I., and Wrangham, R. W. (eds.),Ecological Aspects of Social Evolution on Birds and Mammals, Princeton University Press, Princeton, N.J., pp. 354–378.

    Google Scholar 

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Correspondence to Takeshi Furuichi.

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Furuichi, T. Social interactions and the life history of femalePan paniscus in Wamba, Zaire. Int J Primatol 10, 173–197 (1989). https://doi.org/10.1007/BF02735199

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Key words

  • Pan paniscus
  • female life history
  • grouping pattern
  • social interaction
  • intergroup transfer