I am interested in the effect of global change, and in particular the loss and fragmentation of natural habitats, on biodiversity and ecological processes. My research combines modelling approaches (spatial prioritisation, graph theory, individual-centred models) and empirical approaches in the laboratory and in the field. In particular, through various projects, including my ERC SCALED, I am attempting to dissociate the effects of the loss of natural habitats from the effects of their fragmentation into several disjoint spaces. To do this, we have set up experimental systems in mini-landscapes (MINILANDS, thesis Karolina Argote) in the laboratory, where we are monitoring populations of F. candida, and in meso-landscapes (MESOLANDS) in the Crau plain, where we are monitoring communities of non-flying arthropods, as well as monitoring landscape genetics and the movement of red squirrels in life-size landscape windows (MACROLANDS).