Title
Long-term ecological impacts of harvesting non-timber forest products on tree species diversity at the periphery of Mbam and Djerem National Park, Cameroon
Author(s)
Konsala, S.;Akoa, A.;Elvire-Hortense, B.;Roger-Corneille, F.
Published
2012
Publisher
Journal of Ecology and the Natural Environment
Abstract
Non-timber forest products (NTFPs) strongly contribute to livelihood security of forest-adjacent
communities. This study examined the impacts of their harvesting on tree species diversity at the
periphery of Mbam and Djerem National Park (Cameroon). Tree species diversity, with diameter at
breast height (dbh) ≥ 10 cm, was analyzed in small plots (10 × 100 m) along seven 1-ha transects.
Species diversity and floristic composition of undisturbed and disturbed sites were compared in order
to obtain an indication of the impact of harvesting NTFPs. A total of 1294 stems was recorded,
representing 99 species, 96 genera and 36 families. Shannon diversity index values were highest in
undisturbed sites (H’ > 3.5 bits), and lower in disturbed sites (H’ < 3.5 bits). Analysis of variance showed
significant differences in mean diversity measures between the two sites (p = 0.047). Mean number of
stems cut within the disturbed sites was 15.5 ± 5.5 stems ha-1. The park’s region was found to be rich in
Euphorbiaceae, Caesalpiniaceae and Annonaceae. The survey highlighted the effectiveness of
harvesting NTFPs in the region and its impacts on tree species diversity. Efforts should be made more
in order to improve the protection of the park, and the development of a suitable regional conservation
of biodiversity.
Access Full Text
A full-text copy of this article may be available. Please email the WCS Library to request.
![]()
Back
PUB14127