History of Marine Animal Populations (HMAP)
As part of the History of Marine Animal Populations program of the Census of Marine Life, we studied historical examples of population and ecosystem recoveries around the world. Also, in an interdisciplinary effort with archaeologists, historians, and ecologists, we reconstructed the ecological history of human-induced and natural changes in the Wadden Sea, southern North Sea, and the consequences of these changes on diversity, food-web structure, and ecosystem functions and services. HMAP has now grown into the Oceans Past Initiative (OPI; http://hmap.sea.ee/).