Description du projet
Zoom sur la dynamique biodiversité-écosystèmes
La biodiversité joue un rôle vital à l’heure d’assurer le fonctionnement des écosystèmes (FE) et la stabilité des écosystèmes (SE). Si les mécanismes qui sous-tendent les relations biodiversité-FE (BFE) et biodiversité-SE (BSE) sont étudiés sous tous leurs angles, la relation entre le FE et la SE demeure nébuleuse. En outre, on ignore si les types de relations observés peuvent être adaptés et appliqués à des communautés multitrophiques. La plupart des recherches portaient sur des communautés monotrophiques et sur des échelles spatiales relativement petites. Le projet GorBEEa, financé par l’UE, fusionnera les recherches sur la BFE et la BSE à différentes échelles spatiales et organisationnelles dans des communautés multitrophiques. L’objectif est de comprendre la manière dont le déclin de la biodiversité influence la dynamique des écosystèmes naturels. Le projet tiendra compte de plusieurs échelles temporelles et analysera plusieurs fonctions du côté des ressources.
Objectif
The role of biodiversity in shaping ecosystem functioning (EF) and stability (ES) is a fundamental question in ecology. The mechanisms underlying biodiversity-EF (BEF) and biodiversity-ES (BES) relations have been extensively studied, but they have been approached separately, and we thus lack an understanding of how EF and ES relate, a particularly urgent task in the face of global environmental change. Further, most research has been conducted within single trophic communities and relatively small spatial scales, and whether the types of relations observed are scalable and applicable to multi-trophic communities is unknown.
To address these shortcomings, in GorBEEa I propose to merge BEF and BES research (i) within multi-trophic communities, in this case plant-pollinator interaction networks, (ii) across spatial and organizational scales (from local to regional scales, and from populations, to communities), (iii) taking a dynamic perspective that considers multiple temporal scales (within day, within season, between years), and (iv) following a multi-functional approach, analysing several functions on the resource side, but also considering the many times neglected impact on the consumer side. Further, (v) to understand aspects of stability beyond temporal invariability, I will introduce a perturbation to the system, to understand whether biodiversity in multi-trophic communities provides higher resistance and resilience values.
GorBEEa represents an ambitious research programme at the intersect of population, community, ecosystem, and conservation ecology, that will deliver an understanding of how declining biodiversity levels influence natural ecosystem dynamics. But it will also offer an applied angle, through collaborations with stakeholders to develop scientifically-informed management practices.
Champ scientifique
Mots‑clés
Programme(s)
- HORIZON.1.1 - European Research Council (ERC) Main Programme
Régime de financement
ERC - Support for frontier research (ERC)Institution d’accueil
48940 Leioa
Espagne