Mangrove forest. Credit: Sergej Onyshko A study shows that if communities think outsiders are stealing their forest resources, they are more likely to want to increase their own harvest. The research, led by Imperial College London and Max Plank Institute of Evolutionary Anthropology researchers, shows why effective boundaries around a community’s common-pool resource are key to sustainable management of that resource. Common-pool resources, such as forests, fisheries, and groundwater, need to b...