Our group aims to better understand the functioning and dynamics of terrestrial ecosystems, and especially forests, in order to predict their response to global environmental changes and the resulting impacts. To do this, we focus on the study of: (i) functional traits as measurable attributes that can help us characterize and model the response of ecosystems, (ii) the biogeography of species considering their bioclimatic context, (iii) resilience and the monitoring of changes in the composition, structure and functioning of ecosystems, and (iv) the characterization of the functional diversity of ecosystems using molecular and metabolomic tools. These studies combine different approaches and scales, including observational and experimental work in the field, theoretical developments, the compilation and analysis of large databases using bioinformatics and big data tools, remote sensing and process-based modeling.