As a plant ecologist and conservation biologist, the biotic and abiotic processes that govern plant growth, survival and reproduction lie at the heart of my interests. Most tropical ecosystems are threatened by human induced perturbations and shifting environmental conditions. My research focuses on the non-linear response of ecosystem states to these threats. At a local scale, I set up field experiments to understand plant-pollinator, plant-disperser and plant-plant interactions in the African tropics to better predict the impact of perturbations. By designing methodological tools for the analysis of remote sensing data, I also study the broader scale spatio-temporal patterns generated by, and retroacting with ecological processes. Together, this knowledge would allow us to inform strategies for a more sustainable use of natural resources.