Functional ecology, ecosystem functioning, biodiversity, food-webs, biological invasions, stable isotope analyses, freshwater fishes, inter-individual variability.

Research projects

ERADINVA                     SALMOINVADE                    ISOLAC

General interests

Understanding the relationships between biological diversity and ecosystem functioning is a central question of modern ecology. This problematic is even more crucial that human activities such as water abstraction, flow regulation, shifts in agricultural practices, climate changes and biological invasions are affecting simultaneously biodiversity, ecosystem functioning and their complex interactions.

Yet, our ability to determine how ecosystems may respond to such changes is limited, despite ecologists frequently being requested to provide policy makers and managers with predictions. Understanding the consequences of human activities is crucial to link theoretical and applied ecology to quantify and predict the effects of these activities on population, community and ecosystem-level processes.

Recent advances in theoretical ecology have demonstrated how biodiversity strongly affects the structural and functional characteristics of ecosystems, governing the amplitude of ecosystem processes such as primary productivity and nutrient cycling and acting as a source of stability for ecosystems facing natural and human perturbations.

Additionally, the alteration of biodiversity can affect the structure of food webs and create cascading effects that can impact ecosystem functioning. In this context, my research aims at understanding the relationship(s) between biological diversity (analyzed at different level of biological organization) and ecosystem functioning in fresh waters and on determining the interacting effects of human activities.