Sebastien has worked on evaluating pest management strategies in France (mostly focusing on red fox) for the Entente de lute contre la rage et les zoonoses, in close collaboration with the French Agency for Food, Environmental and Occupational Health & Safety and the national and regional hunting and wildlife agencies. His interest in population dynamic and spatial ecology gave Sebastien the opportunity to move to Tasmania in 2014 to study the impact of the Devil Facial Tumour Disease on wild populations of the endangered Tasmanian devil in a multiscale framework, from individual to meta-population.

Over the years, Sebastien has gained extensive experience in the trapping and ethical handling of wild mammals including: voles, brown hare, red fox, Tasmanian devil, wild boar, deer and mountain ungulates.