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DOI of the published article https://doi.org/10.21275/SR201111231036
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Distribution and Threats of Rufous-necked Hornbill (Aceros nipalensis) in Bhutan

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Abstract

Hornbills (Bucerolidae) have a huge bill with a casque on upper mandible in some species. The casque is smaller in female in some species. Rufous-necked Hornbill (Aceros nipalensis), which belongs to Bucerolidae family, is a big bird measuring 90-100 cm long, with around 150 cm wingspan and weighing somewhat between a and 4 kg (4.4 to 8.8 lb). They are found in the Indian Subcontinent, East Asia and Southeast Asia. It is listed as Vulnerable in IUCN Red List, Appendix II of CITES and Schedule I (totally protected wild animals) species in Forest and Nature Conservation Act of Bhutan, 1995. It has high forest dependency and is mostly found between the altitude of 150 and 2,200 meters. Rufous-necked Hornbill mostly feeds on berries, drupes, fruits of Lauraceae spp., Moraceae spp., Annonaceae spp. and Meliaceae spp. In Bhutan, Rufous-necked Hornbill is reported from Samtse, Chhukha, Trashigang, Zhemgang, Monggar, Samdrup Jongkhar, Sarpang Districts, along Punatshang Chhu, and mostly from Wildlife Sanctuaries and National Parks. Though being vulnerable in nature and ecologically important species, it is poorly studied and documented in Bhutan. Therefore, this paper aimed to review published secondary sources related to Rufous-necked Hornbill in Bhutan. The result showed that there were no illegal killings of species in Bhutan. Habitats are threatened because of timber extraction, road construction, clearing of forest for power transmission lines and dying of nest trees.

Keywords:

Bucerotidae, Habitat loss, Vulnerable, Hornbill

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References

Banerjee, A., & Bandopadhyay, R. (2016). Biodiversity Hotspot of Bhutan and its Sustainability. Current Science, 110(4), 521-527.

Banerjee, A., & Duflo, E. (2011). Poor Economics. New York: PublicAffairs.

BBP. (2020). Rufous-necked Hornbill. Retrieved 2020, from Bhutan Biodiversity Portal: www.biodiversity.bt

Datta, A. (1998). Hornbill Abundance in Unlogged Forest, Selectively Logged Forest and a Forest Plantation in Arunchal Pradesh, India. Oryx, 32(4), 285-294.

Datta, A. (2009). Observations on Rufous-necked Hornbill Aceros nipalensis and Austen's Brown Anorrhinus austeni Hornbills in Arunchal Pradesh: Natural History, Conservation Status, and Threats. Indian BIRDS, 5(4), 108-117.

Datta, A., & Rawat, G. S. (2003). Foraging Patterns of Sympatric Hornbills During the Non-breeding Season in Arunachal Pradesh, Northeast India. Biotropica, 35(2), 208-218.

DoFPS. (2018). Forest Facts and Figures 2018. Thimphu, Bhutan: Department of Forest and Park Services, Ministry of Agriculture and Forest, Royal Government of Bhutan.

Dorji, S. (2013). Habitat Use and Conservation Status of Rufous-necked Hornbill in Jigme Singye Wangchuck National Park of Bhutan (Unpublished B.Sc. Thesis).

eBird. (2020). Rufous-necked Hornbill, Bhutan. Retrieved 2020, from eBird: www.ebird.org

Grimmett, R., Inskipp, C., Inskipp, T., & Sherub. (2019). Birds of Bhutan and the Eastern Himalayas. New Delhi: Bloomsbury Publishing India Pvt. Ltd.

iNaturalist. (2020). Rufous-necked Hornbill, Bhutan. Retrieved 2020, from iNaturalist: www.inaturalist.org

Inskipp, C., Inskipp, T., & Grimmett, R. (1999). Birds of Bhutan: Timeless Field Guide. London: Christopher Helm Ltd.

Jinamoy, S. (2013). Estimating Density of Rufous-necked Hornbill (Aceros nipalensis) Using Distance Sampling in Thung Yai Naresuan (East) Wildlife Sanctuary. Journal of Wildlife in Thailand, 20(1).

Kannan, R., & James, D. A. (1999). Fruiting Phenology and the Conservation of the Great Hornbil (Buceros bicornis) in the Western Ghats of Southern Indial. Biotropica, 31(1), 167-177.

Mudappa, D., & Raman, T. (2009). A Conservation Status Survey of Hornbills (Bucerotidae) in the Western Ghats, India. Indian BIRDS, 5(4), 90-102.

NBC. (2019). Biodiversity Statistics of Bhutan 2017. Thimphu, Bhutan: National Biodiversity of Bhutan, Minister of Agriculture and Forest, Serbithang.

NBSAP. (2014). National Biodiversity Strategies and Action Plan. Thimphu, Bhutan: National Biodiversity Centre, Serbithang.

Pandit, M. K., & Grumbine, R. E. (2012). Potential Effects of Ongoing and Proposed Hydropower Development on Terrestial Biological Diversity in the Indian Himalaya. Conservation Biology, 26(6), 1061-1071.

Pandit, M. K., Manish, K., & Koh, L. P. (2014). Dancing on the Roof of the World: Ecological Transformation of the Himalaya Landscape. BioScience, 64(11), 980-992.

Poonswad, M. K., Kemp, A., & Strange, M. (2013). Hornbills of the World: A photographic Guide. Singapore: Draco Publishing & Distribution Pvt. Ltd.

Poonswad, P. (1998). The Asian Hornbills: Ecology and Conservation. Thai Studies in Biodiversity(2), 1-336.

Poonswad, P., & Kemp, A. (1993). Manual to the Conservation of Asian Hornbills. Bangkok: Sirvatana Interprint Co. Ltd.

RGoB. (1995). Forest and Nature Conservation Act of Bhutan, 1995. Thimphu: Royal Government of Bhutan.

Sadadev, B. M., Dhami, B., Bista, S., Neupane, B., Thapa, N., Rawat, Y. B., et al. (2020). Exploring Distributional Evidences and Threats to Initiate Conservation of Great Hornbill (Buceros bicornis) in Nepal. Archives of Agriculture Research and Technology, 1(3), 1011-1013.

Sherub, K., & Singh, A. P. (2020). Notes on the Food and Feeding Habits of Rufous-necked Hornbill Aceros nipalensis in Zhemgang Disstrict, Bhutan. Journal of Bombay Natural History Society, 117, 50-53.

Sherub, K., & Tshering, S. (2019). Rapid Assessment of Two Sympatric Hornbill Species Populations and Their Nesting Behavior in Zhemgang District, Bhutan. BirdingAsia, 31, 54-58.

Shukla, U., Naniwadekar, R., & Datta, A. (2016). Abundance Estimates of the Rufous-necked Hornbill, and Characterisation of a Montane Subtropical Forest in the Eastern Himalaya. Indian Birds, 12(4), 128-134.

Tella, R. D., & MacCulloch, R. (2008). Gross National Happiness as an Answer to the Easterlin Parodox? Journal of Development Economics, 86(1), 22-42.

Thongsikem, V., Poonswad, P., & Kemp, A. (2014). Predictive Distribution Modelling for Rufous-necked Hornbill Aceros nipalensis (Hodgson, 1829) in the Core of the Western Forest Complex, Thailand. Raffles Bulletin of Zoology, 62, 12-20.

Tobgay, S. (2015). The Constitution of Bhutan: Principles and Philosophies. Thimphu, Bhutan: Bhutan National Legal Studies.

UWICER. (2017). Hornbills: Connecting Environment, Economy and Culture in Bhutan. Lamai Goempa, Bumthang: Department of Forest and Park Services, Ministry of Agriculture and Forests, Royal Government of Bhutan.

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2020-10-30

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