View abstract data
Abstract title Eco-evolutionary dynamics of colonization rate, patch occupancy and food chain length in model metacommunities
Author Francois Massol, CNRS, Villeneuve d'Ascq, France (Presenting Author)
Co-author(s) Vincent Calcagno, INRA, Sophia-Antipolis, France
Topic 24. Eco-evolutionary dynamics
Abstract text

Metapopulation dynamics, i.e. the dynamics of population growth, extinction and re-colonization at a large spatial scale, has been a useful concept to explain signatures of genetic differentiation or to understand the persistence of species in environments submitted to random perturbations. However, the ecological consequences of adaptive evolutionary changes in metapopulations, or on the contrary the evolutionary changes induced by environmental modifications in habitat patches, have garnered less interest from both theoreticians and empiricists. Here, I will present some recent results that have emerged from applying models of trait evolution to patch-occupancy metapopulation models. I will show that, when species colonization rates are allowed to evolve, the combination of ecological constraints on suitable habitat (e.g. the presence of suitable prey in food webs) and trade-offs, linking the species’ ability to colonize new patches, resist perturbations and compete with other colonizing species, leads to eco-evolutionary feedbacks and predictions on metacommunity occupancy, food chain length and experienced extinction rates varying in response to trade-off slopes and perturbation rate. I will discuss some of the testable predictions emerging from these metapopulation models in the context of recent experimental findings on metacommunity dynamics.