South-South Co-operation Programme on Environmentally Sound Socioeconomic Development in the Humid Tropics WORKING PAPERS N” 25,1999 BlOSPHERE RESERVE IAWLEMENTAT~ON: THE LATIN AMERICAN EXPERIENCE Claudio DANIELE, Marcel0 ACERBI and Sebastih CARENZO ProMAB -Argentina “‘5 -. . . . . ,:... *.. . :*.-% :;.. > _. ..s-..‘.. . . A UNITED NATIONS EDUCATIONAL, SCIENTIFIC THIRD WORLD ANO CULTURAL ACADEMY ORGANIZATION PROGRAMME OF SCIENCES