Career
He is a specialist on tropical rainforests and of tree architecture. He is best known for the first "Radeau des cimes" ("Navigating the peaks") he initiated with an aerostatic balloon in 1986. He is a Professor Emeritus of the University of Montpellier.
In 2010, he and Luc Jacquet started to collaborate for a Wild-Touch film project, Louisiana Forêt des pluies, a documentary about primary forests.