SRCE: Rivers providing connections between biodiversity reservoirs in Pays de la Loire

This table lists the different ecological corridors that ensure connections between biodiversity reservoirs, providing species with favourable conditions for their displacement and completion of their life cycle. (Article R. 317-19 III of the Environmental Code). The entire hydrographic hair was considered a potential corridor for aquatic inferno species. __Origin__ Ecological corridors resulting from the consultation in the second wave workshop of the actors of the region. It was agreed that “mesh envelopes” will be used as a medium for the identification of ecological corridors. However, level 4 forest envelopes are not retained by the expert committee. In addition, Level 3 envelopes are displayed in hatches to transcribe the diffuse character of the subtrame. The biodiversity reservoirs are represented of the same color, whether they belong to the Green Trame or the Blue Trame. Regarding the Blue Trame, CARTHAGE© BD watercourses and wetlands of national importance are proposed as ecological corridors. Fragmentation is represented in two ways: linear fragmentation (levels 1 to 3) and surface fragmentation (urban task) for the Green Trame. For the Blue Trame, it is the Referential of the Obstacles to the Flow that is used. __Partner organisations__ Biotope, DREAL Pays de la Loire [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/d94d64529a60f4cd7b20086751ec9728713ff0ac)