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Date / lieu : du 3 au 5 février 2019 / ParisUne session intitulée "Apport des recherches sur les milieux biophysiques passés (Quaternaire à historiques) à la gestion et la restauration contemporaines des écosystèmes"est organisée à l’occasion du colloque Q12 qui aura lieu à Paris du 3 au 5 février 2019."Palaeoecological, palaeoenvironmental and geoarchaeological records provide valuable long-term perspectives on the dynamics of contemporary ecosystems. The hybridity or the novelty of the contemporary ecosystems prevent past systems from being used as a target for restoration projects. However, long-term studies contribute to the reconstitution of trajectories of biodiversity and/or the state and the functions of the ecosystems which support them. As such, they can contribute to the ontological reflexion of “what is natural” today. Furthermore, they are not simply useful to tell the story of ecosystem’s degradation under human pressure, but they are also useful to understand the role of legacies and anticipate tipping points in a context of climate and land use changes. Thus, the knowledge of ecosystem trajectories is crucial to characterize the recovery potential, the range of potential future dynamics and to open the discussion on expected functioning as well as the sustainability of ecological management and restorations. In this session, we would like to welcome researchers working on ecosystem trajectories and using them to develop reflections on sustainable management and restoration. All palaeo-records and environments are welcome (lakes, rivers, wetlands, forests, meadows, moors and heath…) as well as all regions of the world (temperate, tropical, polar, mountains...). The reference period can be the Quaternary, the Holocene but can also be focused on the last centuries (from modern times to the present).Laurent Lespez – LGP / Meudon, Didier Galop – GEODE / Toulouse, Laurent Schmitt – LIVE / Strasbourg et Axel Beauchamp – LETG / Caen"La date de soumission des résumés est fixée au 15 octobre.Pour en savoir plus...