For strategic and practical reasons, the Western Mediterranean has been divided into 14 sub-basins. For each of them, coordinators and a network of contributors have been associated for the work of capitalizing knowledge on the islands and writing the various partsof the Atlas.

This network of contributors also constitutes an essential pillar for the preparation of a conservation strategy at the scale of the sub-basin and its long-term implementation.

This strategy will serve to provide a framework and prioritize future actions to be carried out on the islands, but also serve as a reference for soliciting financial support for the implementation of the strategy (response to European and Mediterranean calls for projects, call for national and international donors ...).