Global warming, fragmentation, habitat destruction, atmospheric pollution, overexploitation of resources and biological invasions are among the factors that induce global change that disrupts climates and biodiversity in Mediterranean ecosystems. Each of them acts on a different scale, from local to global over a more or less medium to long time. The Mediterranean natural spaces but also the agro-systems suffer terrible impacts. The main objective of this seminar is to bring together a set of theories and conservatory and innovative notions, nourished or inspired by the knowledge of restorative ecology or agro-ecology.