Journal of Research in Biology An ornithological survey in the vicinity of Agartala city of Tripura state, north-eastern India Keywords: Avifauna, biodiversity hotspot, Agartala, Tripura, north-east India . ABSTRACT: North-east India is a part of Indo-Burma hotspot and among the richest bird zones in India. Tripura lies in the border of Indo-Burma global biodiversity hotspot area but is poorly covered by ornithological works. Avifauna of Tripura state is known by 277 species but there is lack of information about their distribution, particularly in and around Agartala city, which is the capital of Tripura state and is a tourist destination along the border of Bangladesh for its natural landscapes, inland water species, and strong presence of green flora. With a view to enhance its value for tourist attraction and naturalists, a study was conducted to record the species of birds that occur in and around the City. In the present study 73 bird species were recorded from Agartala city and its adjacent areas belonging to 41 families and 14 orders. 852-860 | JRB | 2013 | Vol 3 | No 3 This article is governed by the Creative Commons Attribution License (http://creativecommons.org/ licenses/by/2.0), which gives permission for unrestricted use, non-commercial, distribution and reproduction in all medium, provided the original work is properly cited. www.jresearchbiology.com Journal of Research in Biology An International Scientific Research Journal Authors: Partha Pratim Bhattacharjee, Rahul Lodh, Dipten Laskar, Joydeb Majumder and Basant Kumar Agarwala. Institution: Ecology & Biodiversity Laboratories, Department of Zoology, Tripura University, Suryamaninagar-799 022, Tripura, India. Corresponding author: Basant Kumar Agarwala. Email: [email protected]Web Address: http://jresearchbiology.com/ documents/RA0328.pdf. Dates: Received: 28 Jan 2013 Accepted: 15 Feb 2013 Published: 10 Apr 2013 Article Citation: Partha Pratim Bhattacharjee, Rahul Lodh, Dipten Laskar, Joydeb Majumder and Basant Kumar Agarwala. An ornithological survey in the vicinity of Agartala city of Tripura state, north-eastern India. Journal of Research in Biology (2013) 3(3): 852-860 Journal of Research in Biology An International Scientific Research Journal Original Research
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Jou
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al of R
esearch
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Biology
An ornithological survey in the vicinity of Agartala city of Tripura state,
north-eastern India
Keywords: Avifauna, biodiversity hotspot, Agartala, Tripura, north-east India .
ABSTRACT:
North-east India is a part of Indo-Burma hotspot and among the richest bird zones in India. Tripura lies in the border of Indo-Burma global biodiversity hotspot area but is poorly covered by ornithological works. Avifauna of Tripura state is known by 277 species but there is lack of information about their distribution, particularly in and around Agartala city, which is the capital of Tripura state and is a tourist destination along the border of Bangladesh for its natural landscapes, inland water species, and strong presence of green flora. With a view to enhance its value for tourist attraction and naturalists, a study was conducted to record the species of birds that occur in and around the City. In the present study 73 bird species were recorded from Agartala city and its adjacent areas belonging to 41 families and 14 orders.
852-860 | JRB | 2013 | Vol 3 | No 3
This article is governed by the Creative Commons Attribution License (http://creativecommons.org/
licenses/by/2.0), which gives permission for unrestricted use, non-commercial, distribution and reproduction in all medium, provided the original work is properly cited.
Web Address: http://jresearchbiology.com/documents/RA0328.pdf.
Dates: Received: 28 Jan 2013 Accepted: 15 Feb 2013 Published: 10 Apr 2013
Article Citation: Partha Pratim Bhattacharjee, Rahul Lodh, Dipten Laskar, Joydeb Majumder and Basant Kumar Agarwala. An ornithological survey in the vicinity of Agartala city of Tripura state, north-eastern India. Journal of Research in Biology (2013) 3(3): 852-860
Journal of Research in Biology An International Scientific Research Journal
Original Research
INTRODUCTION
Avifauna contributes most significantly to the
diversity of terrestrial vertebrates, which have a special
role in conservation of biodiversity of a particular area
(Daniels, 1994). Birds are very good indicator
of environmental changes as they respond in the minute
change in habitat structure and composition
(Robert et al., 2001). Indian subcontinent harbour nearly
1300 species of birds, which is more than 13% of total
bird species of the world (Grimmet et al., 2004), and
more than 60% of Indian birds are found in north-east
India (Choudhury, 2010). North-east India is one of the
most significant biodiversity hotspots of the world and
among the richest bird zones in India because of
convergence of the Indo-Malayan, Indo-Chinese and
Indian biogeographical realms. As a result, it is unique in
providing an abundance of habitats that harbour diverse
biota with a high degree of endemism (Chatterjee et al.,
2006; Narwade et al., 2011). Tripura (22°56´- 24°32´ N
and 91°10´- 92°21´ E, with an area of 10,490 km2) is a
small state of north-east India bounded by Bangladesh
on three sides and with Assam and Mizoram on the other
side. It lies in the border of Indo-Burma global
biodiversity hotspot area (Myers et al., 2000) but
very poorly covered by ornithological works
(Choudhury, 2010). Although avifaunal checklist for
Tripura state listed 277 species (Choudhury, 2010) but
little is known regarding the bird species found in the
vicinity of Agartala city, situated by international
boundary of Bangladesh.
STUDY SITES
Agartala city is situated in the western region of
Tripura state with the latitude of 23°45' North and
longitude of 91°45' East and an average elevation of
20.36 m above sea level. It is the capital town of Tripura
with a mix of urban and semi urban complex and a rich
green cover. Forests and farms adjoin the town on three
sides, and therefore, it is also called ‘Green City’. The
total city area is 62.02 km2 and is delimited on the west
side by international boundary with Bangladesh.
Climatic condition is of tropical monsoon type with an
average annual rainfall of 220 cm. Average minimum
and maximum temperature recorded in the region are
6.8°C in January and 37.70°C in June, respectively.
Present study was carried out in eleven
different sites (viz., College Tilla lake area, Golbazar,