Prof. Madhav Gadgil Centre for Ecological Sciences Indian Institute of Science Bangalore 560012, India. and Chairman, Biodiversity Unit Jawaharlal Nehru Centre for Advanced Scientific Research Indian Institute of Science Bangalore 560064, India. Dr. Dana L. Jackson Dr. Norman (Mac) Chapin Associate Director Director, Centre for the Land Stewardship Project Support of Native Lands 14758 Ostlund Trail North 3240 Wilson Blvd., Room 220 Marine on St. Croix, MN 55047, USA. Arlington, VA 22201-4408, USA. Dr. S. Wesley Jackson Dr. Marcus Colchester President World Rainforest Movement The Land Institute 8 Chapel Row 2440 E. Water Well Road Chadlington Salina, KS 67401, USA. England OX7 3NA Dr. Rosamond L. Naylor Dr. Anil K. Gupta Stanford University Indian Institute of Management Institute for International Studies Vastrapur, Ahmedabad 380015 Encina Hall, Room 200 Gujarat, India. Stanford, CA 94305-6055, USA. Dr. Sandra L. Postel Dr. Jack R. Kloppenburg Global Water Policy Project Univ. of Wisconsin 107 Larkspur Drive Dept. of Rural Sociology Amherst, MA 01002, USA. 1450 Linden Drive Madison, WI 53706, USA. Dr. John Harte Dr. Gary P. Nabhan University of California at Berkeley Director of Science Energy and Resources Group Arizona-Sonora Desert Museum Building T-4, Room 100 2021 No. Kinney Road Berkeley, CA 94700, USA. Tucson, AZ 85743, USA. Dr. Mario J. Molina Dr. Bernard O. Nietschmann Massachusetts Insti. of Technology Univ. of California-Berkeley Dept. of Earth, Atmospheric and Dept. of Geography Planetary Sciences, Bldg. 54-13120 501 McCone Hall Cambridge, MA 02139, USA. Berkeley, CA 94720, USA. Dr. Terry L Root Dr. David W. Norton University of Michigan Arctic Sivunmun Ilisagvik College School of Natural Resources and Envi. Pouch 7337, Barrow 430 East University AK 99723-7337, USA. Ann Arbor, MI 48109-1115, USA. Dr. Constance I. Millar Dr. Ronald L. Trosper Institute of Forest Genetics Northern Arizona Univ. Pacific Southwest Forest and Range School of Forestry Expt. Station., P.O. Box 245 P.O. Box 15018 Berkeley, CA 94701, USA. Flagstaff, AZ 86011-5018, USA. Dr. G. David Tilman Dr. Vo Quy Univ. of Minnesota Director, Vietnam National Univ. Dept. of Ecology, Evol. and Behaviour Center for Natural Resources 100 Ecology Bldg., 1987 Upper Buford and Environmental Studies Circle, St. Paul, MN 55108-6097, USA. 19 Le Thanh Tong Street Dr. Peter M. Vitousek Dr. Enrique H. Bucher Dept. of Biology Director Stanford University Centro de Zoologia Aplicada Stanford, CA 94305, USA. Casilla de Correos 122 Cordoba 5000, Argentina. Dr. Michael J. Bean Dr. Richard M. Cowling Environmental Defense Fund Institute for Plant Conservation 1875 Connecticut Avenue, NW, Pvt. Bag., Univ. of Cape Town Washington, DC 20009, USA. Rondebosch, 7700 South Africa Dr. Russell S. Greenberg Dr. Malcom L. Hunter Jr. Director Dept. of Wildlife Ecology Smithsonian Migratory Bird Center University of Wildlife Ecology National Zoological Park Orono, ME 04469-5755, USA. Washington, DC 20008, USA. Dr. Georgina M. Mace Dr. Robert S. Seymour Zoological Society of London College of Natural Resources Institute of Zoology Forestry and Agriculture Regent's Park, London University of Maine NW1 4RY, UK. 5755 Nutting Hall Orono, ME 04469-5755, USA. Dr. Stuart L. Pimm Dr. Johanna H. Wald University of Tennesse Natural Resources Defense Council Dept. of Zoology 71 Stevenson, Suite 1825 Knoxville, TN 37996, USA. San Francisco, CA 94105, USA. Dr. Victor M. Sher, J.D. Dr. Dennis D. Murphy Sierra Club Legal Defence Fund, Inc. Centre for Conservation Biology 180 Montgomery Street, Suite 1400 Dept. of Biological Sciences San Francisco, CA 94104, USA. Stanford University Stanford, CA 94305, USA. Dr. Ashok J. Gadgil Dr. Reed F. Noss Lawrence Berkeley Laboratory Editor, Conservation Biology 90-3058, 1.Cyclotron Road Oregon State University Berkeley, CA 94720, USA. Dept. of Fisheries and Wildlife Covallis, OR 97331, USA. Dr. Calestous Juma Dr. Paul K. Dayton C B D Secretariat Scripps Institution of Oceanography World Trade Centre Univ. of California, San Diego 413, St. Jacques Street La Jolla, CA 92093-0201, USA. Office 630, Montreal Quebec, Canada H2Y IN9 Dr. Susan Anderson Dr. Thomas J. Goreau Lawrence Berkeley Laboratory President Energy and Environment Division Global Coral Reef Alliance Bldg. 70-193A 1 Cyclotron Road 324 N. Bedford Road Berkeley, CA 94720, USA. Chappaqua, NY 10514, USA. Dr. Theodora E. Colborn Dr. Robert E. Johannes World Wildlife Fund Environmental Consultant 1250 Twenty Fourth Street, NW 8 Tyndall Court Washington, DC 20037-1175, USA. Bonnet Hill, Tasmania 7053 Australia Dr. Alexey V. Yablokov Dr. Jane Lubchenco Koltzoff Institute of Oregon State University Developmental Biology Dept. of Zoology 26, Valilov Street 3029 Cordley Hall Moscow 117808, Russia Corvallis, OR 97331-2914, USA. Dr. Mark Sagoff Dr. Judith E. McDowell Univ. of Maryland Woods Hole Oceanographic Insti. Institute for Philosophy and 193, Oyster Pond Road Public Policy, Room 3111 CRL 213, Woods Hole Van Munching Hall MA 02543-1525, USA. College Park, MD 20742, USA. Dr. Stephen R. Carpenter Dr. Charles H. Peterson Univ. of Wisconsin Univ. of North Carolina-Chapel Hill Centre for Limnology Institute of Marine Sciences 680 North Park Street 3431 Arendell Street Madison, WI 53706, USA. Morehead, NC 28557, USA. Dr. Leslie S. Kaufman Dr. Carl Safina Boston Univ. Marine Program Director, Living Oceans Program Boston University National Audubon Society 5 Cummington Street 306 South Bay Avenue Boston, MA 02215, USA. Islip, NY 11751, USA. Dr. David S. Wilcove Dr. Robert Costanza Wildlife Program Maryland Int'l Inst. for Environmental Defense Fund Ecological Economics 1875 Connecticut Avenue, NW Univ. of Maryland System Washington, DC 20009, USA. P.O. Box 38, Solomons MD 20688, USA. Dr. Gretchen C. Daily Dr. Philip M. Fearnside Stanford University National Institute for Research Dept. of Biological Sciences in the Amazon Stanford, CA 94305-5020, USA. Caixa Postal 478 69.011-970 Manaus Amazonas, Brasil. Dr. Carl B. Folke Dr. Stephen P. Hubbell Beijer Int.Insti.of Ecol. Economics Princeton University Royal Swedish Academy of Sciences Dept. of Ecology and Evol. Bioloy P.O. Box 50005, S-10405 Washington Road Stockholm, Sweden. Princeton, NJ 08544, USA. Dr. Donella H. Meadows Dr. Norman Myers Dartmouth College Upper Meadow, Old Road Environmental Studies Program Headington, Oxford OX3 8SZ 6182 Steele Hall England Hanover, NH 03755, USA. Dr. Tomasz Zylicz Dr. Daniel C. Nepstad Economics Department Woods Hole Research Center Warsaw University P.O. Box 296 44/50 Dluga Street 13 Church Street 00-241 Warsaw, Poland Woods Hole Dr. Kamaljit S. Bawa Dr. John W. Terborgh University of Massachusetts Duke University Dept. of Biology Center for Tropical Conservation Boston, MA 02125, USA. 3705-C Erwin Road Durham, NC 27705, USA. Dr. Rodolfo Dirzo Dr. Christopher F. Uhl Univ. Nacional Autonoma de Mexico Penn State University Centro de Ecologia 208 Mueller Lab Ap. Post. 70-275 University Park Ciudad Universitaria PA 16802, USA. 04510 Mexico D.F. , Mexico.