My work focuses on the relationship between biodiversity and ecosystem functioning. This young science (BEF) is rooted in the concern for biodiversity loss linked to global changes, with the accumulation of evidence of a generally negative impact on ecosystem functions. However, some aspects are still poorly understood or explored, among which :

  1. How does biodiversity affect the resilience of ecosystems facing of stress?
  2. What are the mechanisms that explain these effects of biodiversity, at what trophic levels?
  3. How do these changes affect the ecosystem services that affect people?
  4. How do urban green infrastructures and their diversity affect our health and the services on which we depend?

My model is typically the forest because of its importance on the surface of the Earth (climate, biodiversity) and to humans (livelihoods, services), and because they are still poorly documented, particularly because of the size and longevity of trees. I use forests in observational studies using inventories (GFBi), as well as controlled experiments (IDENT, TreeDivNet). I study tree systems wherever they are, but given my interest in ecosystem services, especially health, and the lack of literature on the effect of diversity in and around cities (where the majority of humans now live), I am increasingly integrating issues related to urban and peri-urban environments into my work.