La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Grass-dominated vegetation, not species-diverse natural savanna, replaces degraded tropical forests on the southern edge of the Amazon Basin (2011)
Auteurs :	Joseph W. Veldman, Auteur ; Francis E. Putz, Auteur
Type de document :	Article
Dans :	Biological Conservation (144(5) MAY 2011)
Article en page(s) :	1419-1429
Langues:	Anglais
Résumé :	Changes in land-uses, fire regimes, and climate are expected to promote savanna expansion in the Amazon Basin, but most studies that come to this conclusion fail to define "savanna" clearly or imply that natural savannas of native species will spread at the expense of forest. Given their different conservation values, we sought to differentiate between species-diverse natural savannas and other types of fire-maintained grass-dominated vegetation that replaced tropical forests between 1986 and 2005 in 22,500 km(2) of eastern lowland Bolivia. Analysis of Landsat

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