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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
High chimpanzee and gorilla densities in a non-protected area on the northern periphery of the Dja Faunal Reserve, Cameroon
ORYX, Volume 38, No. 2, Year 2004
Notification
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Description
Information on the densities of threatened species in non-protected areas is crucial for assessing the degree of isolation of adjacent protected areas and consequently their potential for preserving species from extinction. Relatively few studies, however, provide such information. We present the results of a survey of the densities of two great ape species, the gorilla Gorilla gorilla gorilla and chimpanzee Pan troglodytes troglodytes, in a non-protected area on the northern periphery of Dja Faunal Reserve, Cameroon. Densities of chimpanzees and gorillas were estimated to be 1.1 and 3.8 weaned individuals per km 2, respectively. The results confirm that gorillas prefer building nests in vegetation types with limited visibility, and that within preferred vegetation types for nesting, gorillas select patches that are the most difficult to penetrate, resulting in less conspicuous nests. Although the opposite tendencies were exhibited by chimpanzees, no firm conclusions could be drawn from our data. Despite its non-protected status and past and ongoing logging activities in the area, the densities of gorillas and chimpanzees on the northern periphery of Dja Faunal Reserve are comparable to those found within the reserve itself, indicating the need for developing alternative conservation action to protect these important populations. The creation of a Communal Wildlife Zone in this area is legislatively possible, and could be an effective conservation tool because it has to originate from the local people. © 2004 FFI.
Authors & Co-Authors
Dupain, Jef
Belgium, Antwerpen
Royal Zoological Society of Antwerp
Democratic Republic Congo
Royal Zoological Society of Antwerp Rzsa
Kenya, Nairobi
African Wildlife Foundation
Guislain, Patrick
Belgium, Leuven
Strijdersstraat 65
Nguenang, Guy Merlin
Cameroon, Yaounde
Université de Yaoundé I
De Vleeschouwer, K.
Belgium, Antwerpen
Royal Zoological Society of Antwerp
Belgium, Antwerpen
Universiteit Antwerpen
Brazil, Salvador
Una Biological Reserve
Van Elsacker, Linda
Belgium, Antwerpen
Royal Zoological Society of Antwerp
Belgium, Antwerpen
Universiteit Antwerpen
Statistics
Citations: 94
Authors: 5
Affiliations: 7
Identifiers
Doi:
10.1017/S0030605304000365
ISSN:
00306053
e-ISSN:
13653008
Study Design
Cross Sectional Study
Study Approach
Quantitative
Study Locations
Cameroon