Julien Calas is a project engineer engaged with AFD and FFEM for almost 20 years in sustainable development and management of natural resources in developing countries. He’s got a master degree in biology and then graduated as agronomic engineer with a specialization in economics. He worked for 10 years in foreign countries and was in charge of fisheries, agriculture and biodiversity conservation portfolio for AFD in Senegal, Madagascar and Cambodia, with some investments in the banking systems and microfinance institutions. In August 2006 he moved as biodiversity program senior officer at the “Fonds Français pour l’Environnement Mondial” (the FFEM, a French facility for the global environment). He was managing a project portfolio in marine and terrestrial biodiversity, agrobiodiversity, conservation finance and the strengthening of civil society organization involved in conservation in developing countries. He contributed in 2010 to a global review of the last 15 years experiences of the FFEM’s projects on Marine Protected Areas and a recent review of comparative advantages of project approach and conservation trust funds for financing protected area systems.