Reference : Anthropogenic effects on African Landscapes: Spatial Structure, Typologies, Ecologica...
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Life sciences : Multidisciplinary, general & others
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Anthropogenic effects on African Landscapes: Spatial Structure, Typologies, Ecological Impact
[fr] Anthropisation des paysages d'Afrique: structure spatiale, typologies, impact écologique
Vranken, Isabelle mailto [Université de Liège - ULiège > Forêts, Nature et Paysage > Biodiversité et Paysage >]
National Symposium on Applied Biological Sciences
7 février 2014
KUL, UCL, Universiteit Antwerpen, ULg, Ugent, ULB, Belspo, FNRS, Vlaamse Overheid, Richting Morgen, Vlaanderen in Actie, Capital Croissance
[en] Anthropogenic effect ; heterogeneity ; landscape ecology ; DPSIR framework ; intermediate disturbance hypothesis ; habitat heterogeneity hypothesis ; Pattern/Process Paradygm
[en] The problematique of anthropogenic disturbance on African landscapes is studied within the double framework of DPSIR (Drivers Pressures States Impact Response) and Pattern/Process Paradygm (Landscape Ecology). 20 landscae images from D.R. Congo, Ivory Coast and Benin were studied using indexes of spatial (compositional and configurational) heterogeneity and anthropogenic disturbance in order to highlight the relationship between spatial structure and disturbance intensity. The results show maximal heterogeneity at intermediate anthropogenic disturbances and fasten the triangular relationship between anthropogenic effect, biodiversity and spatial heterogeneity, that had been partially theoretised with the intermidiate disturbance and habitat heterogeneity hypotheses.
Université Libre de Bruxelles; Gembloux Agro-Bio-Tech (ULg)
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Students

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