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Intégration de fonctions topologiques du paysage dans le calcul des distances-coût

Abstract : Distance is a basic concept in the issue of animal species motion. Cost distances are more and more used, in order to measure a realistic distance, by means of resistance values given for each landscape types. Here, we propose a method to compute resistance values by using 'topological functions of landscape', i. e. by taking account of proximity to habitat/ non habitat edges. We used a data set concerning the spreading of the fossorial water vole outbreak in the Franche-Comté region, and we tested several functions. The results show that statistical correlations clearly increase in comparison with usual cost-distances.
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Jean-Christophe Foltête, Karine Berthier, Jean-François Cosson. Intégration de fonctions topologiques du paysage dans le calcul des distances-coût. Cybergeo : Revue européenne de géographie / European journal of geography, UMR 8504 Géographie-cités, 2007, 394, ⟨10.4000/cybergeo.9262⟩. ⟨hal-00731627⟩



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