Main Article Content
Background: Lower Damodar river basin is a densely populated area in the Howrah district, West Bengal state, India. There are incidences of water overflow in the region every year during monsoon. The area is chiefly dominated by agroecosystems and aquatic bodies of varied dimension. The region possesses rich diversity of birds fauna which is yet to be documented till date and thus need to be surveyed.
Aim: Prepare a checklist of the avifaunal diversity alongwith their habitat strata and feeding guilds.
Materials and methods: The avifaunal diversity using suitable birds count method in a small patch of 30 sq.km. area located in the lower Damodar river basin was documented.
Results and Discussion: 574 individuals of 62 species of birds belonging to 15 orders and 32 families were documented from the area. Order Passeriformes represented by 14 families, were the most abundant in the area followed by Pelecaniformes and Columbiformes. 10 different habitat types and 8 feeding guilds for the birds were identified in the region. The bird community in the region is dominated by insectivore (32%) followed by carnivore (14%), omnivore (13%), granivore and nectarivore (10% each), frugivore (9%), scavenger (7%) and piscivore (5%). Analysis of variance between the group means of the birds belonging to different habitat strata shows significant difference.
Conclusion: Biodiversity indices shows lesser dominance, good evenness and richness of bird species in the area. Spread of the human settlement across the pristine ecosystem, occasional hunting along with non-judicious uses of pesticides in the agricultural fields are the major threats to the bird diversity in the region that needs further detailed study.
Sharma A, Bhargava D, Vyas V and Khandai V. Study on diversity of birds in Barkatullah University campus. Journal of Entomology and Zoology Studies. 2021;9(2):1390-1394.
Oo SS, Aung NN, Khine AA, Win MS, Aung S, Myint TT, et al Distribution Pattern and Seasonal Variation of Bird Species from Semi-Urban Area of Taungoo Environs. American Journal of Operations Research. 2020;10:111-121.
Grimmett R, Inskipp C, Inskipp T. Birds of Indian Subcontinent. 2nd Ed. Oxford University Press, Mumbai. India. 2015;7-528.
Roy US, Banerjee P, Mukhopadhyay SK. Study on avifaunal diversity from three different regions of North Bengal, India. Asian Journal of Conservation Biology. 2012; 1(2):120-129.
Dubey SK, Chakraborty DC, Mitra M, Bhattacharya R and Neogy AB. Avifaunal assemblages at Gorumara and Jaldapara National Parks in India with reference to habitat association and feeding guild. Asian Journal of Conservation Biology. 2012;4(2).151-160.
Patra G, Chakrabarti S. Avian Diversity in and around Digha, District—East Midnapore (West Bengal, India), Advances in Bioscience and Biotechnology. 2014;5:596- 602.
Sen, K. and Mandal R. A Study on Avian Species Diversity in Chupi Lake, Purbasthali, West Bengal. International Journal of Science and Research. 2018;7(6):1544-1548.
Pramanik AK, Santra KB and Manna CK. Abundance and Diversity of Plants and Animals in the Kulik Bird Sanctuary, Raiganj, West Bengal, India. J Biodiversity. 2010;1(1):13-17.
Mistry J and Mukherjee S. Status and Threats of Water Birds in Ahiran Lake, Murshidabad, West Bengal, India. International Journal of Plant, Animal and Environmental Sciences. 2015;5(2):59-64
Chattopadhyay S, Acharya R and Sen AK. Analysis of Rainfall Trends in Damodar Valley Area. Vayu Mandal. 2020;46(2), 61-72.
Kumbar SM, Ghadage AB. Preliminary study on avian fauna of the Krishna River basin Sangli District, Western Maharashtra, India. Journal of Environmental Biology. 2014;35:1005-1011.
Sinha A, Hariharan H, Adhikari B and Krishnamurthy R. Bird diversity along riverine areas in the Bhagirathi Valley, Uttarakhand, India. Biodiversity Data Journal. 2019;7:1-30.
Rajput A, Yadav SS and Kori PK. Bird diversity of Narmada wetland area and its adjoining habitat of Mathwad Range Alirajpur Division, Madhya Pradesh, India. International Journal of Applied Research. 2021;7(8):184-191.
Haslem A, Bennett AF. Birds in Agricultural Mosaics: The Influence of Landscape Patterns Countryside Heterogeneity. Ecological Applications. 2008;18(1):185-196.
Bureau of Applied Economics & Statistics, Department of Planning and Statistics. District Statistical Handbook Howrah. Government of West Bengal; 2017. Accessed on 02.12.2021. Available:https://howrah.gov.in/document-category/statiscal/
Sutherland WJ. Ecological Census Techniques a handbook. 2nd Ed. Cambridge University Press. New York. 2006;308-344.
Mustoe S, Hill D. Birds. In. Hill D, Fasham M. Handbook of Biodiversity: Methods Survey, Evaluation and Monitoring. Cambridge University Press, New York. 2005;412-427.
Ali,S. The Book of Indian Birds. 13th Ed. Bombay Natural History Society, Oxford University Press, New York. 2012;1-366.
Lovette I.J and Fitzpatrick J.W. The Cornell lab of Ornithology: Handbook of bird biology. 3rd Ed. Cornell University Press, UK. 2016;265-307.
IUCN (International Union for the Conservation of Nature). 2021. The IUCN Red List of Threatened Species. Version 2017—3.1. Accessed Nov 2021. Available:http://www.iucnredlist.org/.
BirdLife International; 2021. Country profile: India. Accessed Nov 2021. Available:http://datazone.birdlife.org/country/india
Stiling PD. Ecology: global insights and investigations. The McGraw-Hill Companies. New York. 2012;352-372.
Dapke, Didolkar SR, Koushik S. Studies on diversity and abundance of avifauna in and around Laxminarayan Institute of Technology campus, Nagpur, Central India. Journal of Entomology and Zoology Studies. 2015;3(5):141-146.