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Distribution fragmentation and current status of the chimpanzee Pan troglodytes verus at its distribution boundary in Senegal Fragmentation de la distribuzione et statut actuel du chimpanze Pan troglodytes verus en limite daire de repartition au Senegal



Distribution fragmentation and current status of the chimpanzee Pan troglodytes verus at its distribution boundary in Senegal Fragmentation de la distribuzione et statut actuel du chimpanze Pan troglodytes verus en limite daire de repartition au Senegal



African Primates. 1999- ( ); 41-2: 71-72



Data on the distribution of chimpanzees Pan troglodytes verus, in Senegal, at the extreme northwest of their distribution, come only from the Parc National du Niokolo Koba. Formore than 20 years, it was said that chimpanzees were only located in the Park. Data collected during IRD 's (French Institute of Research for Development) ('Perturbations and Large Wild Fauna' program update the distribution of this species in Senegal. Field surveys, inside and outside of the Park, together with local inquiries of inhabitants (more than 100 villages since 1996) were carried out from 1988 through 2000. Direct observations and indirect indices of the presence of chimpanzees were recorded and a map of the distribution of the chimpanzee in Senegal was compiled. Though the main refuge of chimpanzees in Senegal is the Niokolo Koba National Park, chimpanzees are still relatively abundant outside the protected area. Chimpanzees occur in the Bassari country south of the Park, and south of the Faleme Hunting Area. Inhabitants of 26 villages of the Kedougou department regularly see or hear chimpanzees. Our findings indicate that the estimation of the number of chimpanzee in Senegal should be revised and doubled. Figures in the literature vary from 150 to 200, but a more realistic figure is about 300 individuals, one half of which are living in the Park. The distribution area of the chimpanzees in Senegal, as well as the population estimate, are larger than has been said for 20 years. However, chimpanzee populations are fragmented.

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