BETWEEN A POLICY OF ENGAGEMENT AND POSITIVE NEUTRALITY: LIBYA TUNISIA ON THE ISSUE WESTERN SAHARA The unresolved issue of Western Sahara has been causing serious divisions in the Maghreb region for 48 years, which affects not only political relations, but also economic cooperation. division into states supporting independence and those backing Morocco’s position very strongly polarized region, ...

Aim The biogeographic history of the Sahara-Sahel desert is tightly linked to its extreme and fluctuating palaeoclimate diverse topography. For mesic species inhabiting region, coastal areas Nile Valley are perceived as main pathways disperse through habitats, but past connections may have also occurred throughout currently isolated mountain regions. Herein, we test trans-Sahara corridor hypoth...