Skip to main content Accessibility help
×
Home
  • Get access
    Check if you have access via personal or institutional login
  • Cited by 3
  • Print publication year: 2008
  • Online publication date: July 2010

17 - The Green Corridor Project: long-term research and conservation in Bossou, Guinea

Summary

The present chapter describes an ongoing reforestation program known as the “Green Corridor Project” that has grown out of 30 years of research into the Bossou chimpanzee community in Guinea. The Green Corridor Project aims to connect two forested habitats of chimpanzees by planting trees in the intervening savanna. The project was started in 1997 and has provided valuable data on reforesting savanna. It has had some success in extending the range of chimpanzees.

THE CHIMPANZEES OF BOSSOU

Bossou is a village located in the border of Guinea and Liberia, about 1000 km from the capital Conakry. A group of 13 chimpanzees occupies the small forests surrounding the village, into which about 2500 villagers and Liberian and Ivorian refugees are crowded. The core area of the chimpanzees (where they spend most of their time) is about 6 km2, while their total ranging area is about 30 km2. The core area consists of very small portions of primary forest, secondary forest, and riverine forest, surrounded by cultivated fields and savanna.

The Bossou chimpanzees were first described by French and Dutch scientists (Lamotte, 1942; Kortlandt, 1986). Since 1976, Japanese scientists and then an international team (KUPRI International) have been studying the chimpanzees at Bossou (Sugiyama and Koman, 1979; Matsuzawa, 2006a). The chimpanzees at Bossou are well known for their use of stone tools. Using mobile stones as hammers and anvils, they crack open the hard shells of oil-palm nuts to eat the kernels (Matsuzawa, 1994, Fig. 17.1).

REFERENCES
Emery Thompson, M., Jones, J. H., Pusey, A. E.et al. (2007). Aging and fertility patterns in wild chimpanzees provide insights into the evolution of menopause. Current Biology, 17, 1–7.
Granier, N., Huynen, M. C., and Matsuzawa, T. (2007). Preliminary surveys of chimpanzees in Gouéla area and Déré Forest. Pan Africa News, 14, 20–22.
Hirata, S., Morimura, N., and Matsuzawa, T. (1998). Green passage plan (tree-planting project) and environmental education using documentary videos at Bossou: a progress report. Pan Africa News, 5, 18–20.
Hockings, K. J., Anderson, J. R., and Matsuzawa, T. (2006). Road crossing in chimpanzees: a risky business. Current Biology, 16, R668–R670.
Hockings, K. J., Humle, T., Anderson, J. R.et al. (2007). Chimpanzees share forbidden fruit. PLoS ONE 2, e886. doi:10.1371/journal.pone.0000886.
Humle, T. and Matsuzawa, T. (2001). Behavioural diversity among the wild chimpanzee populations of Bossou and neighbouring areas, Guinea and Côte d'Ivoire, West Africa – a preliminary report. Folia Primatologica, 72, 57–68.
Humle, T. and Matsuzawa, T. (2004). Oil palm use by adjacent communities of chimpanzees at Bossou and Nimba Mountains, West Africa. International Journal of Primatology, 25, 551–581.
Koops, K. and Matsuzawa, T. (2006). Hand clapping by a chimpanzee in the Nimba Mountains, Guinea, West Africa. Pan Africa News, 13, 19–21.
Koops, K., Humle, T., Sterck, E. H. M., and Matsuzawa, T. (2007). Ground-nesting by the chimpanzees of the Nimba Mountains, Guinea: environmentally or socially determined?American Journal of Primatology, 69, 407–419.
Kortlandt, A. (1986). The use of stone tools by wild-living chimpanzees and earliest hominids. Journal of Human Evolution, 15, 77–132.
Lamotte, M. (1942). La faune mammalogique du Mont Nimba (Haute Guinée). Mammalia, 6, 114–119.
Matsuzawa, T. (1994). Field experiments on use of stone tools in the wild. In Chimpanzee Cultures, ed. Wrangham, R. W., McGrew, W. C., Waal, F. B. M., and Heltne, P.G.. Cambridge: Harvard University Press, pp. 351–370.
Matsuzawa, T. (2006a). Bossou 30 ans. Pan Africa News, 13, 16–19.
Matsuzawa, T. (2006b). Sociocognitive development in chimpanzees: a synthesis of laboratory work and fieldwork. In Cognitive Development in Chimpanzees, ed. Matsuzawa, T., Tomonaga, M., and Tanaka, M., Tokyo: Springer, pp. 3–33.
Matsuzawa, T. (2007). Assessment of the planted trees in the Green Corridor Project. Pan Africa News, 14, 27–29.
Matsuzawa, T. and Yamakoshi, G. (1996). Comparison of chimpanzee material culture between Bossou and Nimba, West Africa. In Reaching into Thought: The Mind of the Great Apes, ed. Russon, A. E., Bard, K. A., and Parker, S.. Cambridge: Cambridge University Press, pp. 211–232.
McGrew, W. (2004). The Cultured Chimpanzee: Reflections on Cultural Primatology. Cambridge: Cambridge University Press.
Ohashi, G. (2006). Behavioral repertoire of tool use in the wild chimpanzees at Bossou. In Cognitive Development in Chimpanzees, ed. Matsuzawa, T., Tomonaga, M., and Tanaka, M.. Tokyo: Springer, pp. 439–451.
Ohashi, G. (2007). Papaya fruit sharing in wild chimpanzees at Bossou, Guinea. Pan Africa News, 14, 14–16.
Shimada, M. K., Hayakawa, S., Humle, T.et al. (2004). Mitochondrial DNA genealogy of chimpanzees in the Nimba Mountains and Bossou, West Africa. American Journal of Primatology, 64, 261–275.
Sugiyama, Y. (2004). Demographic parameters and life history of chimpanzees at Bossou, Guinea. American Journal of Physical Anthropology, 124, 154–165.
Sugiyama, Y. and Koman, J. (1979). Social structure and dynamics of wild chimpanzees at Bossou, Guinea. Primates, 20, 323–339.
Sugiyama, Y. and Koman, J. (1987). A preliminary list of chimpanzees' alimentation at Bossou, Guinea. Primates, 28, 133–147.
Sugiyama, Y. and Koman, J. (1992). The flora of Bossou: its utilization by chimpanzees and humans. African Study Monographs, 13, 127–169.
Yamakoshi, G. (2001). Ecology of tool use in wild chimpanzees: toward reconstruction of early hominid evolution. In Primate Origins of Human Cognition and Behavior, ed. Matsuzawa, T., Tokyo: Springer. pp. 537–556.