Théo is one of the technical agents of the association Dayu Biik. They take care of the management of the Mont Panié reserve, the highest point in New Caledonia and a biodiversity hotspot. They fight for the preservation of the services that the cloud forest of the Panié massif provides them but especially for the protection of the Kaori tree of Mount Panié (Dayu Biik in a local language), a micro-endemic species and important cultural symbol. He is a field agent for the RFT reserve extension project. His job is to consult local people around this project, diagnose the state of health of forests and rivers, and monitor invasive species and their associated threats on the Panié massif.