Who: Master students interested in a multidisciplinary approach combining ecology and statistical physics, and the link between theoretical models and real data. The internship is typically for 6 months, with a salary. With whom : Estelle Pitard (L2C, Département de Physique, Montpellier, France, estelle.pitard@umontpellier.fr). The student will be mainly located in Laboratoire Charles Coulomb (L2C, Montpellier) and will interact with the supervisor, as well as other researchers in ecology and remote-sensing science in Montpellier. What problem : Of fundamental and applied interest in ecology is the study of how populations from the same species are distributed in space as a result of colonization and extinction processes. Such processes depend on the spatial configuration of the habita