Dr. Omar Defeo is a Titular Professor at the Universidad de la República in Uruguay. During the last 30 years, Defeo has worked on biodiversity conservation and the development of adaptive co-management approaches in artisanal shellfisheries, particularly on sandy beach ecosystems. His long-term research, which also includes experimental designs to better distinguish natural variability from anthropogenic impacts, showed that the threats to sandy beach ecosystems span a range from the local, such as trampling, through to the truly global, such as sea-level rise. His research also assesses the implementation of zoning strategies as tools for biodiversity conservation.