Institut de Mathématiques de Toulouse

Les événements de la journée


2 événements


  • Rough paths

    Jeudi 15 juin 10:30-11:30 - Coutin Laure - IMT

    Rough paths

    [En savoir plus]


  • GdT Mathématiques pour la biologie

    Jeudi 15 juin 15:30-16:30 - Robin Aguilée - Laboratoire Evolution et diversité biologique, UPS

    Some predictions on the responses of plants to climate change

    Résumé : Facing climate changes, species can survive through migration allowing
    them to track the spatial redistribution of their favorables
    environmental conditions (spatial range shift) or/and through species
    adaptation to the new local environmental conditions (ecological niche
    shift). Using quantitative genetics models, we showed that because of
    pollen dispersal, plant populations may escape from extinction thanks to
    both a spatial range shift and an ecological niche shift. This may allow
    plants to survive under a faster climate change than expected when
    species only migrate. We then included our prediction of the magnitude
    of the ecological niche shift into simRShift, a process-based model
    allowing to predict the spatial distribution of species under climate
    change in an explicit landscape. We simulated the spatial distribution
    of 8 tree species in France over the 21st century. We showed that unless
    the adaptive potential is very high, the demographic processes and the
    structure of the landscape affect much more the spatial distribution
    changes than adaptation induced by climate change.

    [En savoir plus]