Institution: | Institute for Ecological Economics, University of Maryland, P.O. Box 38, Solomons, MD 20688–0038, U.S.A., email; Istituto Centrale per la Ricerca Applicata al Mare, Via di Casalotti 300, Roma, Italy ; Conservation International, 2501 M Street NW, Washington, D.C. 20037, U.S.A. |