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Biodiversité potentielle dans les forêts du Vercors : une approche hiérarchique pour la conservation des espaces forestiers

Abstract : There is a general consensus that as pressures on natural resources increase, biodiversity is being lost, and the rate of loss is not sustainable. Within the present situation is become a critical need to develop methods and tools for biodiversity monitoring and conservation. In particular, we need spatially-explicit tools and rapid assessment methods that are relatively easy to implement at different scales and at a relatively low cost. One of the basic assumptions in ecology is that there are positive relationships at different spatial scales between landscape heterogeneity and species richness in a given landscape mosaic. In this thesis, we focus on this assumption in order to build a Potential Species Biodiversity Index. Our aim was to assess potential biodiversity within a forest landscape mosaic, considering the Vercors' mountain range as a case study. The index encompasses indirect biodiversity indicators and criteria as a surrogate to biodiversity potential present for a given area. This approach allows a better understanding of the relationships between forests stand structure, forest landscape characteristics and species richness or geographical distribution. The main steps of the method and its evaluation are presented in scientific papers. The analysis of geographical distribution of the index at different spatial scales provides practical applications for conservation planning and multifunctional forest management related fields.
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Submitted on : Friday, March 23, 2012 - 12:02:23 PM
Last modification on : Wednesday, May 27, 2020 - 1:51:24 AM
Long-term archiving on: : Sunday, June 24, 2012 - 2:22:29 AM


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  • HAL Id : tel-00682041, version 1



Mathilde Redon. Biodiversité potentielle dans les forêts du Vercors : une approche hiérarchique pour la conservation des espaces forestiers. Médecine humaine et pathologie. Université de Grenoble, 2012. Français. ⟨NNT : 2012GRENS002⟩. ⟨tel-00682041⟩



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