- Report2018Hornbill Nest Adoption Program - 2018 Breeding SeasonHNAP 2018 Report
- Report2018Understanding impacts of hornbill loss on plants.Final report submitted to Arunachal Pradesh Forest Department, Itanagar, Arunachal Pradesh towards completion of the research project titled “Understanding Impacts of Hornbill Loss on Plants”.Download
PDF, 21.2 MB
While large avian frugivores are known to be key dispersers for large-seeded plants, their role in the wider plant-disperser networks is still poorly known. In this study, we evaluate the role of large avian frugivores in plant-disperser communities using network and seed dispersal effectiveness approaches in a tropical forest site in north-east India. We systematically-collected tree watch data from 46 plant species, representing 85 percent of typically bird-dispersed plant species, spanning over 2055 h. We found that the plant-disperser community was modular with a distinct community of large-sized seed plants and frugivores. While intermediate-sized birds such as barbets and bulbuls were the most connected, large-sized dispersers such as hornbills and Imperial-pigeons were moderately well-connected. Imperial-pigeons consistently fed on large-sized fruits, highlighting their importance for dispersal of large-seeded plants. In addition to frugivore-fruit size matching, frugivore dietary choices might play an important role in governing the organization of modules. There was a gradient in qualitative and quantitative roles played by different dispersers, with hornbills removing significantly larger number of fruits and consistently swallowing larger proportions of fruits as compared to other avian groups. Under simulated extinction scenarios, observed networks were far less resilient to disperser loss along a gradient of body size from large to small as compared to extinctions that were random or based on rarity. Given the paucity of information on plant-disperser networks from the South Asian region and reported local extinctions of large frugivores like hornbills, this study is important in highlighting that loss of large avian frugivores might have irreplaceable quantitative and qualitative damages to plant communities.
- Report2017Hornbill Nest Adoption Program - 2017 Breeding SeasonHNAP 2017 Report
- Report2017Hornbill Watch Report June 2014 to February 2017June 2017, www.hornbills.in
- Report2016Hornbill Nest Adoption Program - 2016 breeding seasonHNAP 2016 Report
- Report2016NCF Annual Report 2016
- Report2015Hornbill Watch Report June 2014 to May 2015May 2015, www.hornbills.inDownload
PDF, 813 KB
An update that summarises the information obtained on Indian hornbills contributed by people on the Hornbill Watch website for one year (June 2014 to May 2015).
- Report2015Hornbill Nest Adoption Program - 2015 Breeding SeasonHNAP 2015 Report
- Report2014Density of Rufous-necked hornbills and their food plants in Eaglenest Wildlife SanctuaryReport to Arunachal Pradesh Forest Departmemt
- Report2014Hornbill Nest Adoption Program - 2014 breeding season2014 HNAP Report
- Report2013Hornbill Nest Adoption Program - 2013 Breeding seasonHNAP Report for 2013Download
PDF, 1.78 MB
2013 Report for Hornbill Nest Adoption Program
- Report2013Hornbills, rats, seeds and rainforest trees: plant-animal interactions and plant demographyFinal Report submitted to National Geographic Society, June 2013
- Report2012Protecting a hornbill haven: a community-run conservation initiative around Pakke Tiger ReserveHNAP Report for 2012Download
PDF, 2.11 MB
2012 Report for Hornbill Nest Adoption Program
- Report2011Conserving a hornbill havenHNAP Report for 2011Download
PDF, 1.83 MB
2011 Report for the Hornbill Nest Adoption Program
- Report2011Long-term hornbill nest and roost monitoring in Pakke Wildlife Sanctuary and Tiger Reserve (2003-2010).Unpublished Report. Submitted to Arunachal Pradesh Forest Department, Itanagar, Arunachal Pradesh, November 2011.
- Report2011Linking rural energy and nature conservation in a tribal village in Arunachal PradeshFinal Report submitted to DST, New Delhi, May 2011, 22 pp.
- Report2004The high altitude wildlife of Western Arunachal Pradesh: a survey reportTechnical Report No. 8, Nature Conservation Foundation, International Snow Leopard Trust, and Wildlife Conservation Society (India Program), Mysore, India.Download
PDF, 1.38 MB
The high altitude wildlife of Arunachal Pradesh, located in the Eastern Himalaya biodiversity hotspot, has remained unexplored and unprotected. Between August and October, 2003, we undertook a biological expedition in the high altitudes (> 3000 m) of Tawang and West Kameng Districts of Western Arunachal Pradesh, with the objective of inventorying wildlife and identifying areas for the establishment of wildlife reserves. The expedition documented the occurrence of a rich mammalian species assemblage (34 species), 12 of which are of global conservation importance. Our discovery of the Chinese goral Nemorhaedus caudatus represents a new addition to the list of large mammals of the Indian sub-continent. We also recorded a primate belonging to the sinica group of the genus Macaca, which is potentially a species new to science. We recorded 150 bird species, identified 140 plant species, and prepared a preliminary description of the high altitude vegetation. We also documented peoples’ dependence on natural resources (grazing, collection of timber and medicinal plants), and the threats to the region’s wildlife, including widespread hunting, and persecution of the snow leopard Uncia uncia and dhole Cuon alpinus in retaliation against livestock depredation. Preliminary vegetation maps were prepared using field data in conjunction with satellite imageries. Based on information about the wildlife assemblages, extent of high altitude habitat, and levels of anthropogenic disturbance, we identify and propose an important site (815 km²) for the creation of a wildlife reserve. Future conservation efforts need to focus on establishing the state’s first high altitude wildlife reserve, and garnering the support of indigenous people for wildlife conservation through community-based programs.