PROGRAM TITLE: Tropical Biological Diversity Program (TROBID) ACTIVITY STREAM: Assessment SCIENCE ELEMENT:Ecological Systems and Dynamics SMITHSONIAN INSTITUTION NATIONAL MUSEUM OF NATURAL HISTORY (NMNH) Smithsonian Tropical Research Institute (STRI) SCIENTIFIC MERIT: Tropical ecosystems undoubtedly house a large percentage of the world's total biological diversity, but millions of species remain to be discovered and identified and the distributions of most described species are very poorly known. The future of these important areas is threatened by human alteration, i.e. burning and fragmentation, and global climate change which will cause widespread distributional changes, including the extinction of many species of ecological and economic importance. TROBID is geared to 1) inventory the biodiversity and document species distributions in these vanishing habitats, especially tropical forests, 2) monitor changes in biodiversity through repeated standardized sampling of flora and fauna at permanent sites and to 3) identify the physical and biological processes of growth and decline and 4) identify the physical and biotic consequences resulting from habitat fragmentation. As a natural outgrowth of these areas of inquiry and the program's linkages an active program of workshops and training of local biologists in biodiversity inventory methods is included. TROBID is composed of four subprograms: the Biological Dynamics of Forest Fragments (BDFF) program based in Manaus, Brazil which conducts investigations into the microclimatic and biotic changes that take place in isolated forest fragments of various sizes; the Biological Diversity of Latin America (BIOLAT) program which supports research on all aspects of biodiversity, including standardized inventory and monitoring at initial permanent stations in Peru and Bolivia; 3) the Biological Diversity of the Guianas (BDG) which inventories and documents the flora and fauna of the region a 4) Botanical Survey of Panama (BSP) which inventories and documents plant distributions in Panama. TROBID programs build on more than ten years' experience and hundreds of man months at a network of fixed-site research stations. Large data bases exist for species inventory, long-term monitoring and collections information. TROBID programs have contributed to the publication of the landmark Four Neotropical Rainforests documenting work at Pakitza, Manaus and Barro Colorado Island. STAKEHOLDERS: In addition to its linkages in the U.S. with public and private organizations, the program is firmly based in international cooperation, operating as a joint venture with INPA in Brazil, the Museo de Historia Natural in Peru, the University of Guyana, the University of Panama, and other universities and conservation and research entities in Latin America. A large and important part of the program is training and institutional and research support for host country students and scientists involved in biodiversity research. POLICY RELEVANCE: TROBID programs are directly related to the objectives of the proposed Global Change and Ecological complexity (GCEC) and the established Global Change and Terrestrial Ecosystems (GCTE) projects of the IGBP. Research objectives relate to ecosystem processes, fluxes and energy balance in tropical areas, species and ecosystem distribution, and threshold responses. In the short term, BIOLAT will focus on completing Pakitza studies and producing published results. BIOLAT will add additional sites to the program and refine data collection techniques producing a methods series in English and Spanish. BDFF will initiate collaborative work with researchers from other sites focusing on those in Four Neotropical Rainforests book. BDFF will also begin and OTS training course for Brazilian graduate students. PROGRAM CONTACTS:SI SGCR Representative: Ted A. Maxwell NASM MRC 315 Smithsonian Institution Washington, D.C. 20560 202 357 1424 FAX: 202 786 2566 Email: tmaxwell@ceps.nasm.edu Bureau Representative: Marsha Sitnik NMNH MRC 106 Smithsonian Institution Washington, D.C. 20560 202 357 2670 FAX: 202 786 2934 Email: nmhod004@sivm.si.edu