- Book Chapter2013Dugongs in Asia. In Sirenian conservation: Issues and strategies in developing countries.Florida: University of Florida Press.
Ellen Hines. John Reynolds, Lemnuel Aragones, Antonio A. Mignucci- Giannoni, Miriam Marmontel. (Ed.)
- Journal Article2013First record of Tristram's Bunting Emberiza tristrami from IndiaIndian Birds 8:134-135
- Popular Article2013My books and their animalsThe Hindi in School, 23 January
- Popular Article2013The great crane projectThe Hindu in School, 20 February
- Popular Article2013The circle of lifeThe Hindu in School, 17 April
- Popular Article2013Rasgullas worth their tinThe Hindu in School, 13 March
- Popular Article2013Becoming one of themThe Hindu in School, 9 January
- Popular Article2013Securing Habitat of NemoFriday, April 12, Andaman Chronicles.
- Popular Article2013Bringing back a commonerThe Hindu in School, 27 February
- Journal Article2013Spatial and temporal variation in hornbill densities in Namdapha Tiger Reserve, Arunachal Pradesh, north-east IndiaTropical Conservation Science 6:734-748Download
PDF, 642 KB
Asian hornbill populations are declining across their ranges because of hunting and deforestation. Five of the 32 Asian hornbill species occur in north-east India. However, vital information on their abundance from the region remains scanty. Understanding spatiotemporal variation in densities provides crucial information for formulating effective conservation strategies based on species-specific abundance patterns and population trends. We examined spatiotemporal variation in densities of four hornbill species in the Namdapha Tiger Reserve, a site identified as an important site for hornbill conservation in Asia. We collected data through variable-width line transect sampling (effort=842.1 km) in the non-breeding season from 2009-12 to estimate hornbill densities. We had 458 detections of four hornbill species. We have estimated White-throated Brown Hornbill densities (7.9 birds/km2) for the first time throughout its entire range. The mean Rufous-necked Hornbill densities (6.9 birds/km2) were higher than those reported elsewhere. Great (3.9 birds/km2) and Wreathed Hornbill (16.1 birds/km2) densities were comparable with other sites. The peak densities of all hornbill species in November-December are among the highest reported from Asia. Wreathed Hornbill densities showed temporal variation peaking in November-December (68 birds/km2) and drastically declining by March-April (1.3 birds/km2), indicating seasonal altitudinal movement to low elevation areas outside the reserve during the breeding season. Our results underscored the spatial variation in hornbill distribution, with low densities of Great and the White-throated Brown hornbills in higher elevations. Our study demonstrates the global importance of Namdapha for hornbills, given its large area and high densities of four hornbill species.
- Journal Article2013Role of Tibetan Buddhist Monasteries in Snow Leopard ConservationConservation Biology. DOI: 10.1111/cobi.12135
- Popular Article2013Running into the rare brown mongooseThe Hindu in School, 27 March
- Popular Article2013Jalebis at the forest fenceThe Hindu in School, 6 March
- Journal Article2013An expedition to Narcondam: observations of marine and terrestrial fauna including the island-endemic hornbill.Current Science 105: 346-360.
- Newsletter2013Where have all the dugongs gone? A study on long-term occupancy trends in the Andaman and Nicobar archipelago, India,Sirenews, Newsletter of the IUCN Sirenia Specialist Group, Vol. 60.
- Book Chapter2013Bonnet macaque Macaca radiataPages 148-169 in A J T Johnsingh and N Manjrekar (editors) Mammals of South Asia, Volume 1, Universities Press, Hyderabad
- Popular Article2013Not so deserted, after all!The Hindu in School, 6 November
- Popular Article2013A morning with ‘Bloated Stomach’The Hindu in School, 8 May
- Popular Article2013THE resurrectionThe Hindu in School, 23 October
- Popular Article2013Three different voicesThe Hindu in School, 17 July