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    Assessment of habitat use by Black-necked crane (Grus nigricollis) and elflows of Nyamjang Chu Hydroelectric project in Tawang District, Arunachal Pradesh.
    (Wildlife Institute of India, Dehradun, 2018) Gopi, G.V.; Johnson, J.A.; Adhikari, B.S.; Bhattacharya, M.; Wattham, T.; Sivakumar, K.
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    A rapid field survey of tigers and prey in Dibang Valley district, Arunachal Pradesh
    (Wildlife Institute of India, Dehradun, 2014) Gopi, G.V.; Qureshi, Qamar; Jhala, Y.V.
    The Dibang valley district is the largest district of Arunachal Pradesh with an area of 9129 sq km and is also the least populated district of the country with approximately 1 person/sq km. The district shares international borders in the north, North West and Eastern sides with Tibet (China), the South Western region is bound by Upper Siang district and the Southern Side is bound by lower Dibang Valley district. This district was chosen to survey for tigers and their prey due to the recent rescue of tiger cubs from the district in Angrim valley during december 2012. Our survey confirms the occurrence of tigers in the district. We camera trapped the first ever image of an adult tiger from the Dibang valley Wildlife Sanctuary. We also observed 10 pubmarks and collected 11 scats in and around the WLS. All the 24 people whom we informally interviewed confirmed the presence of tigers in the WLS and reported either having had a direct sighting, observed indirect evidences or heard about livestock depredation incidents by the tigers. Preliminary assessment of prey suggest that the WLS holds a good diversity and abundance of prey like Takin Budorcis taxicolor taxicolor, wild pig Sus crofa, Goral Naemorhaedus goral, Musk deer Moschus fuscus, Barking deer Muntiacus muntjak, Himalayan Serow Capricornis thar and Mithun Bos frontalis which can sustain a good population of tigers in the DWLS. The DWLS has the potential of becoming a tiger reserve in future as it may harbour a very important source population of tigers in this region, However the next immediate priority must be to ensure that this vital tiger population is protected and continuously monitored. This can be achieved by a collaborative effort between NTCA, WII, GoAP and most importantly the local people by conducting long term research to establish robust ecological and genetic baselines that can aid in long term conservation and monitoring of tigers, co-predators, prey and their habitats in this unique landscape that in part of a global biodiversity hotspot.
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    Assessment of habitat use by black-necked crane (Grus nigricollis) and eflows of Nyamjang Chu Hydroelectric Project in Tawang district, Arunachal Pradesh
    (Wildlife Institute of India, Dehradun, 2018) Gopi, G.V.; Johnson, J.A.; Adhikari, B.S.; Bhattacharya, M.; Wattham, T.; Sivakumar, K.
    Nyamjang Chu River flowing in Zemithang valley of Tawang district, Arunachal Pradesh is on e of the only two known Black-necked crane wintering sites in India. In 2006, the Government of Arunachal Pradesh awarded the development of a hydropower project in the Nymjang Chu River at Zemithang valley to Bhilwara Energy Limited. On behalf of BEL WAPCOS ltd and RS Envirolink technologies pvt. limited carried out the EIA and EMP were strongly opposed and challenged by many scientific as well as social institutions. Citing flaws in the methods adopted for floral and faunal studies the baseline setting for the ecological aspects and prediciton of impacts on wildlife habitat and environment of the region. Recently the honorable National Green Tribunal (NGT) observed gross errors in the EIA and EMP such as omission of key, rare and threatened species such as omission of key, rare and threatened species such as the Black-necked crane in the report and ordererd that the WII to conduct a detailed study in this regard. The primary scope of the WII study was to assess the habitat requirements of the Black-necked crane and Assess the environmental flows requirement for protection and conservation of Black-necked crane habitats at the proposed Nyamjang Chu Hydroelectric project site in Zemithang valley
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    A rapid herpetofaunal assessment in Lower Subansiri and Papum-Pare district, Arunchal Pradesh, India survey report 2020
    (Wildlife Institute of India, Dehradun, 2020) Das, Abhijit; Boruah, Bitupan
    Present study yielded 36 species of herpetofauna, of which amphibians represented by 19 species and reptiles by 17 species. All recorded amphibian species are anuran of which, Amolops marmoratus, A. monticola, Raorchestes sp., Zhangixalus smaragdinus, Theloderma asperum, Ingerana borealis and Fejervarya sp. were commonly observed in Potin. In Lichi species such as Euphlyctis cyanophlyctis, Duttaphrynus melanostictus, Fejervarya sp. were commonly encountered. Species belonging to the genus Liurana were only recorded from Talle WLS. Among the recorded reptiles, snake represented by 11 species and lizards represented by six species. Psammodynastes pulverulentus, Cyrtodactylus sp., Sphenomorphus sp. and Calotes jerdonii were frequently recorded in Potin. Study also recorded rare species of reptiles such as Boiga quincunciata and Pseudocalotes austeniana from Potin and Talle WLS respectively. During the study period, species richness was high in Potin as maximum survey was carried out in Potin than that of Lichi and Talle WLS. Few species recorded in the present study are identified upto generic level or referred to closely related species as systematic study of those species is needed. However, the number of herpetofaunal species in the study region will increase with further study as the present study was carried out for a short period. Besides recorded species of herpetofauna, the present study also documents species that were either conferred to closely related species (e.g., Polypedates cf. himalayanus, Asymblepharus cf. sikimmensis) or their identity remains to be ascertained (e.g., Nanorana sp., Raorchestes sp., Cyrtodactylus sp.). However, the present study was carried out for a short period and it indicates the number of herpetofaunal species in the study region will increase with further systematic study. The record