Sheep and Goat farming systems of the PACA region of France are facing relatively severe threats given the various changes the region is facing (urbanization, change of nature of the agricultural land, market uncertainty..) . Given their system's high reliance to the use of land for feeding animals, be it by direct use of grazing land (alpine meadows etc..) or through cropping cereals for feeding animals, any change in land use or land cover and land-related policy measures expose farmers to drastic challenges. The paper analyses the vulnerability of small ruminant farmers to land-related changes occurring in the PACA region using the DPSIR framework (driver pressure state impact response). The paper firstly studies the land cover changes at regional level that occurred from 1999 to 2006 overlaid on a partition of the region by Geo Terroirs. Secondly it focuses on one small region in the Haut Var to study at a larger scale the changes (ecological dimension and farming systems) and how farmers use the different spatial entities at their disposal to feed their animal therefore designing a complex adaptation response. It raises question on the co-evolution of farming systems and the land they use, the importance of flexible mobility and land access policies to tackle uncertainty. GIS Data used for the regional analysis originated from a pool of catalogued layers from the CRIGE PACA and from various data providers. We used the Corine Land Cover layer with 44 categories of land cover to study changes occurring during the time frame. Categories of changes were scrutinized to extract and assess only those that may have a direct impact on livestock farming. Data used for the large scale analysis at local level originated from field surveys using the agrarian survey methods. By combining results from large scale and small scale analysis the paper shows the importance of macro and micro adaptations for farmers to adapt to global changes. (Texte integral)