PhD Theses (WII)

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Author: search.filters.author.Sathyakumar, S.Subject: search.filters.subject.Habitat

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    An assessment of abundance, habitat use and prey selection by carnivores in Khanchendzonga Biosphere Reserve, Sikkim
    (Wildlife Institute of India, Dehradun, 2013) Bashir, Tawqir; Sathyakumar, S.
    The present study conducted for about five years (2008-2012) was therefore designed to generate some baseline information on the carnivores of the least explored part of the eastern Himalayan biodiversity hotspot i.e., the Khangchendzonga Biosphere Reserve (BR~2,620 km²) with an attempt to assess their diversity, distribution, abundance, space use, food habits, activity patterns and the nature and extent of human-carnivore conflict, if any. An effort was also made to use this information in predicting suitable and priority areas for conservation action and in developing a protocol for long-term population monitoring of these species. Reconnaissance surveys were conducted in seven watersheds of the Khangchendzonga BR and the Prek chu watershed (182 km²) was selected for intensive field work. The study confirmed the presence of 19 species of carnivores from the KBR including 11 species of global conservation significance. In order to understand the factors that govern the co-existence of carnivores in the area their spatial, dietary and temporal patterns of recourse use were also assessed. This study provides the first scientific information on the ecology of carnivores in the Khangchendzonga BR and is of high significance to managers for efficient conservation and management of these ecologically important species and their habitats in such intricate habitats where accessibility and data collection is a limiting factor.
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    Ranging Patterns of Asiatic Black Bear (Ursus thibetanus) with reference to food availability in Dachigam National Park, Kashmir
    (wildlife Institute of India, 2012) Sharma, Lalit Kumar; Sathyakumar, S.
    Asiatic black bear are threatened due to poaching for gall bladder (medicine), skin (ornamental), retaliatory killings to reduce bear-human conflicts, and due to large scale habitat degradation or loss. The present study was carried out during 2007-2011 to address the issues related to movement patterns of black bear in relation to food availability in Dachigam landscape and to understand the food and feeding habits of black bear in different seasons. Habitat characterization and mapping were carried out to assess habitat quality and to understand the level of fragmentation and composition of Dachigam landscape. The forest fragmentation analysis in the present study suggested intermediate level of fragmentation and it is likely to increase because of human encroachment on the forest land. The forested fragmentation can adversely impact the movement of bear in the landscape which may lead to demographic as well as genetic isolation of species, hence leading to population fragmentation and extirpation.
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    Asiatic Black Bear (Ursus thibetanus) Abundance, Habitat Occupany Patterns, and Conflicts with Humans in and around Dachigam National Park, Kashmir.
    (Wildlife Institute of India, Dehradun, 2012) Charoo, Samina Amin; Sathyakumar, S.
    The present study focused on the abundance estimation, habitat use patterns and human - bear interactions in Dachigam National Park and Dachigam Landscape, Jammu and Kashmir, India during the period 2007-2010. The abundance estimation is the basic information needed for any species. In this study abundance estimation of black bears was tried out through various methods: sign surveys, camera trapping and non- invasive genetic method. Sign surveys were carried out to understand the encounter rates of black bears within Dachigam National Park.