Factors affecting diversity and distribution of threatened birds in Chitwan National Park, Nepal
Main Article Content
Abstract
Factors affecting diversity and distribution of globally threatened birds were studied by dividing Chitwan National Park (CNP) into five study blocks consisting of 17 birding routes. CNP provides major habitats for the feeding and breeding of a large number of migratory birds from many parts of the globe and also plays a vital role in the conservation of threatened species. We recorded a total of 437 individuals of globally threatened birds belonging to 19 species of nine families and eight orders. There was considerable variation (F=2.94, df=44.43, p=0.05) in species diversity of threatened birds in different study blocks: the highest diversity was in Block E (Pithauli, Amaltari, and Narayani Island area; H=2.108), followed by Block C (Kasara to Sukibhar area; H=2.047), Block B (Barandabhar Corridor Forest; H=2.033), Block A (Khagendra Malli, Kathar, Sauraha to Old Padampur; H=1.744), and Block D with the least diversity (Madi area; H=1.69). The higher dominance index was found in blocks A (D=0.2407) and D (0.2361) compared to other blocks. The lower diversity of threatened birds was reported in those blocks (A & D) located nearer to human settlements that experienced higher disturbance. Presence of livestock and people caused significantly negative effects on species richness and abundance of threatened birds, mainly in Block A. Distance from roads and villages also had a negative effect on the diversity and abundance of most of the threatened birds. This study suggests that human disturbance caused a significantly negative impact on the presence, distribution, diversity, and abundance of threatened birds in CNP and adjoining areas.
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References
Baral, H.S., U.R. Regmi, L.P. Poudyal & R. Acharya (2012). Status and conservation of birds in Nepal, pp61–90. In: Biodiversity Conservation in Nepal, A Success Story. DNPWC.
Baral, H.S., U.R. Regmi, L.P. Poudyal & R. Acharya (2013). Status and conservation of birds in Nepal. Biodiversity Conservation in Nepal, a success story. DNPWC, 61–90pp.
Basnet, T.B., M.B. Rokaya, B.P. Bhattarai & Z. Münzbergová (2016). Heterogeneous landscapes on steep slopes at low altitudes as hotspots of bird diversity in a hilly region of Nepal in the central Himalayas. PLoS ONE 11: e0150498. https://doi.org/10.1371/journal.pone.0150498
BCN & DNPWC (2011). The State of Nepal’s Birds 2010. Bird Conservation Nepal and Department of National Parks and Wildlife Conservation, Kathmandu, 110pp.
BES (2018). An official checklist of birds of Chitwan National Park, Bird Education Society, Sauraha, Chitwan, Nepal.
Bett, M., C.M. Muchai & C. Waweru (2016). Avian species diversity in different habitat types in and around North Nandi Forest, Kenya. African Journal of Ecology 54(3): 342–348. https://doi.org/10.1111/aje.12338
Bhattarai, B.P. & P. Kindlmann (2012). Habitat heterogeneity as the key determinant of the abundance and habitat preference of prey species of tiger in the Chitwan National Park, Nepal. Acta Theriologica 57(1): 89–97. https://doi.org/10.1007/s13364-011-0047-8
Bhattarai, B.R., W. Wright, B.S. Poudel, A. Aryal, B.P. Yadav & R. Wagle (2017). Shifting paradigms for Nepal’s protected areas: history, challenges and relationships. Journal of Mountain Science 14(5): 964–979. https://doi.org/10.1007/s11629-016-3980-9
Bhattarai, B.P. (2012). Distribution and diversity of storks in the adjoining areas of Chitwan National Park, Nepal, pp97–114. In: Kindlmann, P. (ed.). Himalayan Biodiversity in the Changing World. Springer, Dordrecht.
Bibby, C.J., N.D. Burgress & D.A. Hill (2000). Birds Census Techniques. Birdlife International Academic Press, London, 215pp.
BirdLife International (2018). Country Profile: Nepal, 110pp. Available online at https://www.birdlife.org/datazone/country/nepal. Accessed on 14 March 2018.
Chaudhari, U.K., G. Kafle & H.S. Baral (2009). Avifaunal diversity of Khata Corridor Forest. Journal of Wetlands Ecology 2(1&2): 48–56. https://doi.org/10.3126/jowe.v2i1.1857
Chhetri, M.B.P. & A. Shakya (2016). Environmental Degradation in Nepal. Ministry of Physical Planning and Works, Government of Nepal.
CNP (2018). Biodiversity of Chitwan National Park. Available online at https://chitwannationalparkgovnp/indexphp/biodiversity. Accessed on 17 February 2018.
Department of National Parks and Wildlife Conservation and Bird Conservation Nepal (2018). Birds of Nepal: An Official Checklist, Kathmandu, Nepal, 40pp.
DMG (2007). Geological Maps of Exploration Block 1, Dhangadi, far western Nepal. Petroleum Promotion Exploration Project, Department of Mines and Geology, Kathmandu.
DNPWC (1973). National Parks and Wildlife Conservation Act, 1973. Department of National Parks and Wildlife Conservation, Ministry of Forestry and Soil Conservation, Kathmandu, Nepal.
DNPWC (2018). CITES Listed Endangered Flora and Fauna of Nepal. Department of National Parks and Wildlife Conservation, Nepal, 62pp.
Fisher, R.A. & F. Yates (1943). Statistical Tables for Biological, Agricultural and Medical Research. Oliver & Boyd Ltd., London, 155pp.
Giri, B. & M.K. Chalise (2008). Seasonal diversity and population status of water birds in Phewa Lake, Pokhara, Nepal. Journal of Wetlands Ecology 1(2): 3–7. https://doi.org/10.3126/jowe.v1i1.1568
Grimmett, R., C. Inskipp & T. Inskipp (2000). Birds of Nepal. Helm Field Guide. Prakash Books, New Delhi.
Grimmett, R., C. Inskipp & T. Inskipp (2011). Birds of Indian Subcontinent. Helm Field Guide. Oxford University Press, India.
Grimmett, R., C. Inskipp, T. Inskipp & H.S. Baral (2016). Birds of Nepal. Christopher Helm, London.
Hammer, Ø., D.A.T. Harper & P.D. Ryan (2001). Past: Paleontological Statistics Software Package for Education and Data Analysis. Palaeontologia Electronica 4(1): 1–9. Available online at https://palaeo-electronica.org.
Inskipp, C., H.S. Baral, T. Phuyal, R. Bhatt, M. Khatiwada, T. Inskipp, A. Khatiwada, S. Gurung, P.B. Singh, L. Murray, L. Poudyal & R. Amin (2016). The Status of Nepal’s Birds: The National Red List Series. Zoological Society of London, UK.
Inskipp, C., H.S. Baral, T. Inskipp, A.P. Khatiwada, M.P. Khatiwada, L. Poudyal & R. Amin (2017). Nepal’s National Red List of Birds. Journal of Threatened Taxa 9(1): 9700–9722. https://doi.org/10.11609/jott.2855.9.1.9700-9722
Inskipp, C., T. Inskipp, R. Grimmett & H.S. Baral (2003). Birds of Nepal. Bird Conservation, Nepal, 288pp.
IUCN (2018). The IUCN Red List of Threatened Species. Version 2017-3. Available online at www.iucnredlist.org. Accessed on 24 February 2018.
Jankowski, J.E., A.L. Ciecka, N.Y. Meyer & K.N. Rabenold (2009). Beta diversity along environmental gradients: implications of habitat specialization in tropical montane landscapes. Journal of Animal Ecology 78(2): 315-327. https://doi.org/10.1111/j.1365-2656.2008.01487.x
Jia, Q., X. Wanga, Y. Zhangb, L. Caoa & A.D. Foxd (2018). Drivers of water bird communities and their declines on Yangtze River floodplain lakes. Biological Conservation 218: 240–246. https://doi.org/10.1016/j.biocon.2017.12.029
Kandel, P., I. Thapa, N. Chettri, R. Pradhan & E. Sharma (2018). Birds of the Kangchenjunga landscape, the eastern Himalaya: status, threats and implications for conservation. Avian Research 9(1): 9. https://doi.org/10.1186/s40657-018-0100-2
Katuwal, H.B., K. Basnet, B. Khanal, S. Devkota, S.K. Rai, J.P. Gajurel, C. Scheidegger & M.P. Nobis (2016). Seasonal changes in bird species and feeding guilds along elevational gradients of the central Himalayas, Nepal. PLoS ONE 11: e0158362. https://doi.org/10.1371/journal.pone.0158362
Lamichhane, S., R.C. Kandel, C.P. Pokheral, T.P. Dahal & S. Bhattarai (2016). Biodiversity Profile of Beeshazar and Associated Lakes, Chitwan. DNPWC, CNP, NTNC, Norad, Ramsar, 55pp.
Ministry of Forests and Environment (2018). National Ramsar Strategy and Action Plan, Nepal (2018–2024). Ministry of Forests and Environment, Singha Durbar, Kathmandu, Nepal, 30pp.
Nicholas, J.G. & C. Anne (2013). Measuring and estimating species richness, species diversity, and biotic similarity from sampling data, pp195–211. In: Levin, S.A. (ed.). Encyclopedia of Biodiversity, Vol. 5, 2nd Edition. Academic Press, Waltham, MA.
Poudyal, L.P., P.B. Singh & S. Maharjan (2008). Bengal Florican Houbaropsis bengalensis in Nepal: an update. BirdingAsia (10): 43–47.
Quintero, I. & W. Jetz (2018). Global elevational diversity and diversification of birds. Nature 555(7695): 246–250. https://doi.org/10.1038/nature25794
Sharma, H.K. (2004). Diversity of Threatened Birds and Their Conservation Threats in Barandabhar Corridor Forest, Chitwan. MSc Thesis. Central Department of Zoology, Tribhuwan University, Kirtipur, Kathmandu, 47pp.
Shrestha, T.K. (2016). Wildlife of Nepal. B. Shrestha Publication, Kathmandu, Nepal, 720pp.
Siegel, R.B. (2009). Methods for Monitoring Land birds. A Review Commissioned by Seattle City Light’s Wildlife Research Advisory Committee (2000). Natural Resource Report NPS/NCCN/NRR—2009/074. National Park Service. Fort Collins, Colorado
Simpson, E.H. (1949). Measurement of diversity. Nature 163: 688. https://doi.org/10.1038/163688a0
ter Braak, C.J. & P. Smilauer (2002). CANOCO reference manual and CanoDraw for Windows user’s guide: software for canonical community ordination (version 4.5). Available online at http://library.wur.nl/WebQuery/wurpubs/341885
Thapa, J.B. & T.B. Saund (2012). Water quality parameters and bird diversity in Jagdishpur Reservoir, Nepal. Nepal Journal of Science and Technology 13(1): 143–155. https://doi.org/10.3126/njst.v13i1.7453
Thapa, T.B. (2011). Habitat Suitability Evaluation for Leopard (Panthera pardus) using Remote Sensing and GIS in and around Chitwan National Park, Nepal. PhD Thesis. Saurashtra University, Rajkot, Gujarat, 228pp.
Tokeshi, M. & P.E. Schmid (2002). Niche division and abundance: an evolutionary perspective. Population Ecology 44(3): 189–200. https://doi.org/10.1007/s101440200022
White, R.L. & P.M. Bennett (2015). Elevational distribution and extinction risk in birds. PloS One 10(4): e0121849. https://doi.org/10.1371/journal.pone.0121849