Ontology, Collection Development and Library and Information Science: the case of Biodiversity. Shubhada Nagarkar Bioinformatics Center, University of Pune, Pune - 411 007 Maharashtra, India, shubha@bioinfo.ernet.in Harsha Parekh Retired Librarian and Prof. of Library Science, SNDT Women’s University, Mumbai - 400 020 harsha_parekh@vsnl.com Geoffrey Bowker Department of Communication, University of California, San Diego, La Jolla, USA. bowker@ucsd.edu This paper presents an overview of the collection and organization of biodiversity data. We analyze current trends in biodiversity informatics, including work on metadata for biodiversity databases. According to the Global Biodiversity Information Facility (GBIF), the museum world now holds an estimated two to three billion-biodiversity specimens, with 75% of these collections in developing countries. The two main obstacles in documenting and using the biodiversity datasets are their heterogeneous nature and their scattered distribution over the world. National and international initiatives are underway in organizing and documenting these vast datasets housed in natural history museums as well as in botanical and zoological surveys. Much of this data is not yet digitized, and so is available only to individuals or small groups working largely in isolation - especially data from the species-rich developing world. Because of the scattered and diverse nature of the biodiversity data, existing worldwide efforts of digitization are not much satisfactory to provide right information to right user. Appropriate management of information and collection development in this area is the challenging tasks and is new research area for Library and Information Science (LIS) professionals. They can play a key role in organizing this information because they are trained in cataloguing and indexing data systematically. They can contribute in the areas like data standardization, metadata, thesaurus, terminologies and data interoperability issues etc. Most biodiversity research is associated with organisms in the field, which must be properly identified. Species identification tools can and must be delivered for field and laboratory research. A process of formal scientific description, and the terminology used and ontology needed for the description of organisms is very extensive. The current challenge for biodiversity informatics lies in the creation of descriptive systems (and identification tools based on these), which are useful for specialists as well as for nonspecialist (Berendsohn, 2001). Thesauri and ontologies can be used to control synonymous terms and also to show the relationship between concepts. A good example of a biodiversity thesaurus is the Biocomplexity Thesaurus by NBII (http://www.nbii.gov). The paper outlines the recent progress in ontology and and thesaurus development in the field of biodiversity and explores this as a new opening for LIS professionals in the organization of biodiversity data. References: Walter G. Berendsohn (2001) Biodiversity http://www.bgbm.org/BioDivInf/def-e.htm Informatics Available online at