the Centre d'Ecologie des Systèms Aquatiques Continentaux, CNRS et Université Toulouse 3 (1995-2001).Present National Responsibility:
- President of the "Groupement d'Intérêt Public: Ecosystèmes Forestiers - ECOFOR" (2000-
- President of several Scientific Committees at the French Ministry of the Environment.
Past International Responsibilities:
- President of the Scientific Committee of the programme MAB.UNESCO "Land-Inland Water interface: Research and Management" (1988-1996)
- President of the "Internaional Association for Landscape Ecology" (IALE) (1991-1995)
- Scientific coordinator of the programmes of the European Commission: 'European River Margins' et 'Floodplain Biodiversity and Restoration'.
Organization of the internationa symposia:
- "Quels Flueves pour demain?" Ministère de l'Environment et CNRS, Orléans, September 1991.
- "World Congress of the International Association for the Landscape Ecology (IALE)," Touslouse, July 1995.
- "Eighth International Symposium on Regulated Streams - EISORS," Toulouse, July 2000.
Teaching:
- University of Toulouse: Aquatic Ecology lectures at the PhD level (1990-1996).
- Univresity of Roskilde, Denmark: international seminars at the PhD level 'Landscape ecology and the dynamics of agricultural landscapes' (1997 and 2000).
- University de Sao Paulo, Brazil: Landscape Ecology lectures at the PhD level (1998).
