Cite this paper
nullN. Atnafu, E. Dejen and J. Vijverberg, "Assessment of the Ecological Status and Threats of Welala and Shesher Wetlands, Lake Tana Sub-Basin (Ethiopia)," Journal of Water Resource and Protection
, Vol. 3 No. 7, 2011, pp. 540-547. doi: 10.4236/jwarp.2011.37064
 Ethiopian Forestry Action Programme, “The Challenges for Development,” Vol. 2, EFAP, Addis Ababa, 1989.
 Y. D. Abebe and K. Geheb (Eds.), “Wetlands of Ethiopia,” 2003.
 W. J. Mitsch and J. G. Gosselink, “Wetlands,” 2nd Edition, John Wiley and Sons, New York, 1993.
 A. Moges, “Species Composition, Distribution, Relative Abundance and Habitat Association of Avian Fauna in Fogera Plain Wetland, Ethiopia,” M.Sc. Thesis, Addis Ababa University, Addis Ababa, 2008.
 S. Ayinalem, “Species Composition, Distribution, Relative Abundance and Habitat Association of the Bird Fauna of Bahir Dar, Zegie Peninsula and Nearby Islands,” M.Sc. Thesis, Addis Ababa University, Addis Ababa, 2007.
 M. McCartney, T. Alemayehu, A. Shiferaw and S. B. Awulachew, “Evaluation of Current and Future Water Resources Development in the Lake Tana Basin, Ethiopia,” IWMI Research Report 134, International Water Management Institute, Colombo, 2010.
 Improving Productivity and Market Success of Ethiopian Farmers, “Atlas: Fogera Wereda, Amahara,” Improving Productivity and Market Success of Ethiopian Farmers, Bahir Dar, 2007.
 American Public Health Association, “Standard Methods for the Examination of Water and Wastewater,” 20th Edition, American Public Health Association, Washington D.C., 1998.
 USEPA, “Sampling and Analytical Procedures for GLN- PO’s Open Lake Water Quality Survey of the Great Lakes; Chapter 4 - Biological Parameters; LG406 - Standard Operating Procedure for Benthic Invertebrate Field Sampling Procedure,” 7th Edition, EPA 905-R-03-002, March 2003.
 R. W. Bouchard Jr., “Guide to Aquatic Maro-Inverte- brates of the Upper Midwest,” Water Resources Centre, University of Minnesota, St. Paul, 2004.
 J. M. Edington and A.G. Hildrew, “A Key to the Caseless Caddis Larvae of the British Isles, with Notes on Their Ecology,” Freshwater Biological Association, Ambleside, 1981.
 T. T. Macan, “A Key to Nymphs of the British Species Ephemeroptera with Notes on Their Ecology,” Freshwater Biological Association, Ambleside, 1979.
 D. Mueller-Dombois and H. Ellenberg, “Aims and Methods of Vegetation Ecology,” John Wiley and Sons, New York, 1974.
 A. Kaur, “Laboratory Manual of Ecology and Environmental Studies,” Paragon International Publisher, New Delhi, 2004.
 A. B. Tesema, “Useful Trees and Shrubs for Ethiopia: Identification, Propagation and Management for 17 Agroclimatic Zones,” World Agroforestry Center, Nairobi, 2007.
 F. Beinhard and A. Adi, “Honeybee Flora of Ethiopia,” DED Weikersheim, Margraf Verlag, 1994.
 M. Kent and P. Coker, “Vegetation Description and Analysis, A Practical Approach,” Belhaven Press, London, 1992.
 M. Jones, “Study Design,” In: M. C. Bibby, M. Jones and S. Marsden, Eds., Expedition Field Techniques, Bird Surveys, The Expedition Advisory Centre, Royal Geographical Society, London, 1998, pp. 15-34.
 C. Bibby, M. Jones and S. Marsden (Eds.), “Expedition Field Techniques: Bird Surveys,” Expedition Advisory Centre, Royal Geographical Society, London, 1998.
 R. Howard and A. Moore, “A Complete Checklist of the Birds of the World” 2nd Edition, Christopher Helm Publisher, London, 1980.
 B. Perlo, “Collins Illustrated Checklist: Birds of East Africa,” Harper Collins Publisher, London, 1995.
 D. V. Chapman (Ed.), “Water Quality Assessments, a Guide to the Use of Biota, Sediments and Water in Environmental Monitoring,” 2nd Edition, Spon Press, Abingdon, 1996.
 Environmental Protection Authority of Ethiopia, “Provisional Emission Standard for Ethiopia,” EPA, Addis Ababa, 2003.
 U.S. Environmental Protection Agency, “The Quality of our Nation’s Water: A Summary of the 1988 National Water Quality Inventory,” EPA Report 440/4-90-005, Washington D.C., 1990.
 R. Dana and M. B. Susan, “A Field Guide to Common Aquatic Plants,” University of Chicago Press, Chicago, 2009.
 A. E. Magurran, “Ecological Diversity and Its Measurement,” Chapman and Hall, London, 1988.
 G. J. Wallace and H. D. Mahan, “An Introduction to Ornithology,” 3rd Edition, Macmillan Publisher, New York, 1975.
 Tonkin and Taylor International, “Environmental and Social Impact Assessment for the Ribb Dam,” Supplemental Work for Ministry of Water Resources, Ministry of Water Resources, Addis Ababa, 2009.
 A. Getahun, E. Dejen and W. Anteneh, “Fishery Studies of Ribb River, Lake Tana Basin, Ethiopia,” Vol. 2, Final Report E1573, Ethiopian Nile Irrigation and Drainage Project Coordination Office, Ministry of Water Resources, Addis Ababa, 2008.