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A study spanning 3.7 years on the butterflies of Gibbon Wildlife Sanctuary GWS (21km2), a semi-evergreen forest, in Jorhat District of Assam, northeastern India revealed 211 species of butterflies belonging to 115 genera including 19 papilionids and seven â€˜rareâ€™ and â€˜very rareâ€™ species as per Evans list of the Indian sub-continent (Great Blue Mime Papilio paradoxa telearchus; Brown Forest BobScobura woolletti; Snowy Angle Darpa pteria dealbatahas; Constable Dichorragia nesimachus; Grey Baron Euthalia anosia anosia; Sylhet Oakblue Arhopala silhetensis; Branded Yamfly Yasoda tripunctata). The butterflies showed a strong seasonality pattern in this forest with only one significant peak during the post monsoon (September-October) when 118 species were in flight inside the forest which slowly declined to 92 species in November-December. Another peak (102 species) was visible after winter from March to April. Species composition showed least similarity between pre-monsoon (March-May) and post-monsoon (October-November) seasons. The number of papilionid species were greater from July to December as compared from January to June. The findings of this study suggest that the pattern of seasonality in a semi-evergreen forest in northeastern India is distinct from that of the sub-tropical lowland forest in the Himalaya. Favourable logistics and rich diversity in GWS points to its rich potential in promoting â€˜butterfly inclusive ecotourismâ€™ in this remnant forest.
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Barua, K.K., J.K.S. Slowik & M. Muehlenberg (2010). Correlations of rainfall and forest type with papilionid assemblages in Assam in northeast India. Psyche: A Journal of Entomology2010, Article ID 560396, 10pp; http://dx.doi.org/10.1155/2010/560396
Barua, K.N. & P.K. Khatri (2010). Floristic wealth, life formand biological spectrum of Gibbon Wildlife Sanctuary, Assam. Journal of Economic and Taxonomic Botany 34(1): 72â€“86.
Barua, K.N. & G. Gogoi (2012). Observations on feeding and lodging behaviour of Hoolock hoolock (Western Hoolock Gibbon) in Gibbon Wildlife Sanctuary, Assam. Journal of Nature and Environment 4&5: 29â€“35.
Bhattacharjee, S. (2012). The scenario of man-elephant conflict in Hoollongapar Gibbon Wildlife Sanctuary of Assam, India. International Journal of Scientific and Research Publications 2(8): 1â€“3.
Boonratana, R., M. Chalise, J. Das, S. Htun & R.J. Timmins (2008).Â Macaca assamensis. The IUCN Red List of Threatened Species. Version 2014.3. . Downloaded onÂ 20 January 2015.
Boonratana, R., J. Das, L. Yongcheng, S. Htun & R.J. Timmins (2008).Â Macaca leonina. The IUCN Red List of Threatened Species. Version 2014.3. . Downloaded on20 January 2015.
Bordoloi, P.K. (2010). Gibbon Wildlife Sanctuary. Catalogue published by Jorhat Division, Assam. Genesis Printers, 6pp.
Brockelman, W., S. Molur & T. Geissmann (2008).Â Hoolock hoolock. The IUCN Red List of Threatened Species. Version 2014.3. . Downloaded onÂ 20 January 2015.
Challender, D., J. Baillie, G. Ades, P. Kaspal, B. Chan, A. Khatiwada, L. Xu, S. Chin, R. KC, H. Nash & H. Hsieh (2014).Â Manis pentadactyla. The IUCN Red List of Threatened Species. Version 2014.3. . Downloaded onÂ 20 January 2015.
Champion, S.H.G. & S.K. Seth (1968). A Revised Survey of The Forest Types of India. Manager of Pb.Govt. of India, New Delhi, 404pp.
Choudhury, A., D.K.L. Choudhury, A. Desai, J.W. Duckworth, P.S. Easa, A.J.T. Johnsingh, P. Fernando, S. Hedges, M. Gunawardena, F. Kurt, U. Karanth, A. Lister, V. Menon, H. Riddle, A. RÃ¼bel & E. Wikramanayake (IUCN SSC Asian Elephant Specialist Group) (2008).Â Elephas maximus. The IUCN Red List of Threatened Species. Version 2014.3. . Downloaded onÂ 20 January 2015.
Das, J., S. Molur & W. Bleisch (2008).Â Trachypithecus pileatus. The IUCN Red List of Threatened Species. Version 2014.3. . Downloaded onÂ 20 January 2015.
Duckworth, J.W., C. Wozencraft, W. Yin-xiang, B. Kanchanasaka & B. Long (2008). Viverra zibetha. The IUCN Red List of Threatened Species. Version 2014.3. . Downloaded onÂ 20 January 2015.
Evans, W.H. (1932). The Identification of Indian Butterflies-Second Edition. Bombay Natural History Society, Bombay, 464pp.
Gogoi, M.J. (2013). A preliminary checklist of butterflies recorded from Jeypore-Dehing forest, eastern Assam, India. Journal of Threatened Taxa 5(2): 3684â€“3696; http://dx.doi.org/10.11609/JoTT.o3022.3684-96
Haribal, M. (1992). The Butterflies of Sikkim Himalayas and their Natural History. Sikkim Nature Conservation Foundation. Sikkim, 217pp.
Henschel, P., L. Hunter, U. Breitenmoser, N. Purchase, C. Packer, I. Khorozyan, H. Bauer, L. Marker, E. Sogbohossou & C. Breitenmoser-Wursten (2008).Â Panthera pardus. The IUCN Red List of Threatened Species. Version 2014.3. . Downloaded on20 January 2015.
Htun, S., R.J. Timmins, R. Boonratana & J. Das (2008).Â Macaca arctoides. The IUCN Red List of Threatened Species. Version 2014.3. . Downloaded onÂ 20 January 2015.
Karthikeyan, S. & V. Venkatesh (2011). â€œSnowy Angle Darpa pteriaâ€. The Wild Wanderer, 07 September 2011 (Retrieved on 09/July 2013 from http://www.wildwanderer.com/journal/?p=435).
Kehimkar I. (2008). The Book of Indian Butterflies. BNHS, Oxford University, Delhi Press, 497pp.
New,T.R. & N.M. Collins (1991). Swallotail Butterflies - An Action Plan for their Conservation. IUCN, Gland, Switzerland.
Norman, T. (1956). Notes on the Lepidoptera of Assam-III. Further additions to the Indian list and other notes. Journal of the Bombay Natural History Society 53: 738â€“740.
Pollard, E. & T.J. Yates (1993). Monitoring Butterflies for Ecology and Conservation. Chapman & Hall, London, 274pp.
Senthilkumar, N., S. Trivedi, P.K. Khatri, N.D. Borthakur & N.J. Borah (2006). Butterflies of Gibbon Wildlife Sanctuary, Assam: a preliminary survey. Annals of Forestry 14(1): 86â€“91.
Singh, A.P. (2012). Lowland forest butterflies of the Sankosh River catchment, Bhutan. Journal of Threatened Taxa 4(12): 3085â€“3102; http://dx.doi.org/10.11609/JoTT.o2625.3085-102
Singh, A.P. & R. Pandey (2004). A model for estimating butterfly species richness of areas across the Indian subcontinent: species proportion of family Papilionidae as an indicator. Journal of the Bombay Natural History Society 101(1): 79-89.
Smith, C. (1989). Butterflies of Nepal (Central Himalaya). Tecpress Service L.P., Bangkok, 352pp.
Smith, C. (2006). Illustrated Checklist of Nepalâ€™s Butterflies. Craftman press, Bangkok, 129pp.
Sondhi, S., K. Kunte, G. Agavekar, R. Lovalekar & K. Tokekar (2013). Butterflies of the Garo Hills. Samrakshan Trust (New Delhi), Titli Trust (Dehradun), and Indian Foundation for Butterflies (Bengaluru), xvi+200pp.
Sorensen, T.A. (1948). A method of establishing groups of equal amplitude in plant sociologybased on similarity of species content, and its application to analyses of the vegetation on Danish commons. Kongelige Danske Videnskabernes Selskabs Biologiske Skrifter 5: 1â€“34.
Streicher, U., M. Singh, R.J. Timmins & W. Brockelman (2008).Â Nycticebus bengalensis. The IUCN Red List of Threatened Species. Version 2014.3. . Downloaded on20 January 2015.
Walston, J., J.W. Duckworth & S. Molur (2008).Â Ratufa bicolor. The IUCN Red List of Threatened Species. Version 2014.3. . Downloaded onÂ 20 January 2015.
Wynter-Blyth, M.A. (1957). Butterflies of the Indian Region. Bombay Natural History Society, Bombay, 523pp.