International Journal of Ecology and Environmental Sciences
Assessment of Waterbird Composition in Kalkundamaduwewa Tank at Vavuniya, Sri Lanka
Abstract
Changes in abundance of waterbirds reflect the habitat changes of a tank ecosystem. Ephemeral tanks in Vavuniya district are known as habitats for rich birds diversity during different periods of a year. A short-term field study was made to assess the pattern of waterbird distribution at Kalkundamaduwewa tank during June to August of the year 2015. Visual observations were made twice a week at predefined sampling blocks of the tank. Standard methods were employed to count and identify the species of waterbirds. Data obtained were subjected to compute Species richness index, Shannon-Wiener index, Species evenness, Simpson’s diversity index, and Species similarity. Results suggest that the study tank had species diversity and abundance attributable to a wide variety of habitat along the water body. Nearly 94% of the encountered birds belonged to only eight species out of the total 15 recorded bird species. No significant influence in the bird counts for the rainfall and ambient temperature during the study period. Higher number of waterbirds were encountered in the blocks with higher vegetation. The high correlation of vegetation with the Species evenness and Shannon index justifies the species abundance in the tank. The investigation shows that the tank should be maintained for the birds’ conservation.
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References
Akther, M.S., Mohideen, A.R., Tharani, G., Samith Indika Maddumage, M.R. and Naveendrakumar, G. 2015. Preliminary Assessment and Spatial distribution of selected water quality parameters at Kalmadu tank in Vavuniya district of Sri Lanka. International Journal of Development Research 5 (6): 4570-4576.
Barbour, M.G., Burk, J.H., Pitts, W.D., Gilliam, F.S. and Schwartz, M.W. 1998. Terrestrial Plant Ecology. 3rd edition. Benjarmin/ Cummings: Menlo Park, California. 688 pages.
Bibi, F. and Ali, Z. 2013. Measurement of diversity indices of avian communities at Taunsa Barrage wildlife sanctuary, Pakistan. The Journal of Animal and Plant Sciences 23(2): 469-474.
Buckton, S. 2007. Managing wetlands for sustainable livelihoods at Koshi Tappu. Danphe 16(1): 12-13.
Bull, J. 1974. Birds of New York State. Doubleday/Natural History Press, New York. 640 pages.
Custer, T.W. and Osborne, R.G. 1977. Wading Birds As Biological Indicators 1975 Colony Survey, US Fish and Wildlife Service, Washington, DC. 28 pages.
Dayawansa, P. and Wijesinghe, R. 2002. Waders in Sri Lanka, A guide to their identification and study. Colombo: National Science Foundation of Sri Lanka, Colombo. 69 pages.
Indika, J. and Mahaulpatha, D. 2015. Patterns of seasonal abundance and diversity in the waterbird community of Anavilundawa sanctuary. Wildlanka 3(1): 31-37.
Kishoran, S. and Luximini, K.P. 2015. Preliminary Observation on Bird Diversity in Vairavapuliyankulam Tank and Adjacent Paddy Land in Vavuniya, Sri Lanka. Proceedings of the First International Symposium on Environmental Management and Planning. Central Environmental Authority (CEA), Colombo, Sri Lanka.
Kotagama, S. 2012. Pictorial Pocket Guide to the Birds in Sri Lanka. Field Ornithology Group of Sri Lanka, Colombo, Sri Lanka. 123 pages.
Kumar, P. and Gupta, S. 2009. Diversity and Abundance of Wetland Birds around Kurukshetra. Our Nature 7: 212-217.
Leinster, T. and Cobbold, C.A. 2012. Measuring diversity: the importance of species similarity. Ecology 93(3): 477–489.
Mitsch, W.I. and Gosselink, J.G. 1986. Wetlands. Wiley, New York. 539 pages.
Samarakoon, N. 2004. Hydrogeological Assessment of the Precambrian Basement in the Area Around Vavuniya Town As Revealed From Existing Tubewell and Dug Well Data. MSc Project Report, PGIS, University of Peradeniya, Peradeniya.
Shanmuganathan, S., Manobavan, M. and Fernando, G. 2010. The importance of the small-tank cascade system for the sustainable production of water in the dry zone of Sri Lanka. Proceeding of the Asia-Pacific Round Table for Sustainable Consumption and Production. Open University of Sri Lanka, Nawala. 13 pages.
Shannon, C.E. and Weaver, W. 1964. The Mathematical Theory of Communication. The University of Illinois Press, Urbana, IL. 144 pages.
Simpson, E.H. 1949. Measurement of diversity. Nature 163: 688.
.
Sivanesan, K.S. and Anukulan, W. 2015. Impact of Land Use Changes on Bird Diversity: A Comparative Study of Disturbed and Undisturbed Tanks in The Vavuniya District. Proceedings of the International Symposium on Environment Management and Planning. Colombo: Central Environmental Authority (CEA), Sri Lanka. 5 pages.
Soini, M. 2006. The Relationship of Motivational Climate to Physical Activity Intensity and Enjoyment Within Ninth Grade Pupils in School Physical Education Lessons. Ph.D. thesis, Studies in Sport, Physical Education and Health. Jyväskylä: University of Jyväskyla. 138 pages.
Stirling, G. and Wilsey, B. 2001. Empirical Relationships between Species Richness, Evenness, and Proportional Diversity. The American Naturalist 158(3): 286-299.
Tucker, C.J. 1979. Red and photographic infrared linear combinations for monitoring vegetation. Remote Sensing of Environment 8(2): 127-150.
Turner, W.R. 2003. Citywide biological monitoring as a tool for ecology and conservation in urban landscapes: the case of the Tucson Bird Count. Landscape and Urban Planning 65(3): 149-166. doi:10.1016/S0169-2046(03)00012-4
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