Ricaut’s research is multidisciplinary, combining ancient DNA analysis, archaeological excavations, and population genetic approaches to study populations from archaeological remains, ancient and modern cultural identities and biological markers. He addresses several main questions: What are the links between these different information on human population history and the chronology of human occupation in the region studied? Can we identify changes related to environmental, cultural or demographic pressures? What cultural/biological adaptations are related to settlement in a new environment?