Marion Cordonnier did her thesis at LEHNA (Université de Lyon), then spent a year at ESE (Université Paris-Saclay) as a Research Engineer. She is now a post-doctoral fellow at the University of Regensburg, Germany, in a laboratory whose themes revolve mainly around the ecology and evolution of social insects, in the au Département de zoologie / biologie évolutive. In recent years, his research has focused on the impact of global changes (urbanization, climate change and biological invasions) on interactions between species, including in particular genetic exchanges, predation relationships and competitive interactions. His work mobilized a variety of tools, combining for example landscape genetics, behavioral biology, and chemical ecology. His research mainly concerned ants, and occasionally other biological models (birds, mammals).