Membership Preview Become a member? Friday, March 15, 2002 indicates audio link (M) indicates member section (To order, click on image) Review 47 in the United States... U.N. Biosphere Reserves These 411 U.N. Biosphere Reserves are located in 90 nations that agree to manage the sites according to policies set forth in the Seville Strategy and the Statutory Framework, both created by UNESCO. (Detailed maps by continent - List of Biosphere Reserves) Each of these Biosphere Reserves, and new reserves yet to be designated, are to be connected by corridors of wilderness, surrounded by "buffer zones," which are surrounded...