@Article{taiwania200853130, AUTHOR = {P. C. Abhilash, Nandita Singh, V. P. Sylas, B. Ajay Kumar, John C. Mathew, R. Satheesh and A. P. Thomas}, TITLE = {Eco-distribution Mapping of Invasive Weed Limnocharis flava (L.) Buchenau Using Geographical Information System: Implications for Containment and Integrated Weed Management for Ecosystem Conservation}, JOURNAL = {Taiwania}, VOLUME = {53}, YEAR = {2008}, ISSUE = {1}, PAGES = {30-41}, URL = {https://taiwania.ntu.edu.tw/abstract/702}, ABSTRACT = {Exotic weed invasion has been identified as one of the serious environmental problem impacting the structure, composition and function of biological diversity. They are aggressive colonizers, which have flexible habitat requirement and ability to outcompete native species. The present paper describes the distribution and autecology of an exotic weed Limnocharis flava (L.) Buchenau (an emergent aquatic weed of ‘Limnocharitaceae’) in Kumarakom Grama Panchayat, one of the well known tourist spot of South India famous for its vast stretches of paddy fields, wetlands and backwaters. The mapping of L. flava in the entire study area has been done using Geographical Information System (Arc-info 8.3 version). The growth and distribution pattern of L. flava were studied quantitatively. Data on distribution, abundance, biomass, ecological associations and root zone nutrient quality of water and sediment samples were collected from different sampling points of Kumarakom. The study reflected that nutrients, water depth and land use patterns were the major factors responsible for the growth and proliferation of this exotic weed. The strategies for controlling L. flava invasion are discussed in detail. If early steps are not taken to eradicate this weed, it will become a problematic weed in the same way as other noxious aquatic weeds like Salvinia molesta D. Mitch and Eichhornia crassipes (C. Martius) Solms-Laub.}, DOI = {10.6165/tai.2008.53(1).30} }