Ape food density in the ground layer in Kibale Forest, Uganda
- 1 March 1993
- journal article
- Published by Wiley in African Journal of Ecology
- Vol. 31 (1) , 49-57
- https://doi.org/10.1111/j.1365-2028.1993.tb00517.x
Abstract
Summary: We measured stem density and food biomass density of the major species of groundlayer vegetation eaten by chimpanzees in Kibale Forest, Uganda. Measurements were made in eighteen 50 m2 transects in three areas of Parinari excelsa forest characterized as undisturbed, lightly felled, and more heavily felled. Stem densities and food biomass densities of species edible by chimpanzees varied little between the three areas, and were consistently low compared to previous measurements in habitats occupied by gorillas. Logging history did not have an obvious effect. The large variation in food biomass density in the ground layer of African forests is not currently understood. However, it is likely to be an important influence on the distribution of apes and other mammals.Résumé: Nous avons mesuré la densité des pousses et celle de la biomasse alimentaire des principales espèces de la végétation au niveau du sol, mangée par les chimpanzés dans la forêt de Kibale, en Ouganda. On a effectué des mesures dans 18 transects de 50 m2, dans 3 zones de forêt àParinari excelsa reconnues respectivement comme intactes, légèrement éclaircies et fort éclaircies. La densité des pousses et celle de la biomasse alimentaire des espèces comestibles pour les chimpanzés variaient peu dans les 3 zones et sont notablement basses, comparées aux mesures antérieures dans les habitats occupés par les gorilles. L'exploitation forestière passée n'a pas eu d'effet visible. La grande variation de densité de biomasse alimentaire de la végétation au sol des forêts africaines n'est pas encore expliquée. Cependant, il est probable qu'elle soit d'une grande importance pour la distribution des grands singes et des autres mammiféres.Keywords
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