Yaffa Epstein1, José Vicente López-Bao2, Arie Trouwborst3, Guillaume Chapron4. 1. Faculty of Law, Uppsala University, 753 09 Uppsala, Sweden. yaffa.epstein@jur.uu.se. 2. Research Unit of Biodiversity (UO/CSIC/PA), Oviedo University, E-33600 Mieres, Spain. 3. Department of European and International Law, Tilburg University, 5000 LE Tilburg, The Netherlands. 4. Department of Ecology, Swedish University of Agricultural Sciences, 73091 Riddarhyttan, Sweden.