PhD Theses (WII)

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    Impact of iron ore mining on the elephant habitat of Singhbhum forest, Bihar.
    (Wildlife Institute of India, Dehradun, 2000) Singh, Rakesh Kumar
    In the present study Impact of mining on several ecological and environmental aspects were documented. The legal framework policy guideline related to environment forest and wildlife are also discussed. The Mining landuse in Saranda Forest Division is quantified and mapped. Waste disposal through wet circuit ore processing by Kiriburu iron ore mine have been a reason for Koina river water pollution.
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    Understanding sioth bear (Melursus ursinus) Genetic Connectivity across Vidarbha Landscape, Maharashtra, India
    (Wildlife Institute of India, Dehradun, 2024) Gomes, Lynett; Habib, Bilal
    The goal of this thesis is to use non-invasive DNA sampling to study how sloth bears roam throughout the Vidarbha region of Maharashtra, India. Maharashtra's Vidarbha Landscape is a quickly changing area. The great biodiversity that lives there is under risk from the quick changes in the landscape. It's vital to note that there are about 200 instances of deadly human-sloth bear interactions in Maharashtra alone each year, and that number could increase in the years to come due to increased development activities in the area. Wide ranging or long dispersing species who have extensive movements across a landscape are the ones most affected by range contraptions and fragmentation of the habitat. The broad objectives of this thesis were 1. Understand Genetic Structure, Variation and relatedness amongst sloth bear populations in Vidharbha Landscape and 2. Evaluate genetic relatedness with respect to permeability of the landscape and connectivity. The functional corridor obtained for sloth bears is the main result of this thesis. This can be used in a number of ways by managers, planning bodies, and stakeholders. First, the occupancy and connection would assist indicate key movement regions and areas of concern when evaluated in conjunction with the documented incidents of sloth bear attacks. The pinch points could be focused upon and conserved as intact corridors. Secondly, the movement areas could be modelled with documented bear attacks to highlight the probable corridors or movement areas that need awareness to avoid bear attacks
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    Understanding the impacts of ecological and anthropogenic factors on stress physiology of wild tiger (Panthera tigris tigris) and leopard (Panthera pardus fusca) in Terai-Arc landscape, India
    (Wildlife Institute of India, Dehradun, 2023) Patel, Shivkumari; Mondol, Samrat
    This study was conducted on Indian part of TAL, which can be further categorized as western, central and eastern TAL. Western TAL consists of Rajaji-Corbett TCU (level I) with Rajaji tiger reserve (RTR) at the westernmost boundary and Corbett tiger reserve (CTR) towards east as major source population connected and surrounded by reserve forest areas. Rajaji-Corbett TCU with multiple core protected areas connected by forest lands is a macro reserve harboring the largest tiger population in this landscape. I conducted my study with following objectives: Objective 1: Assessing effects of faecal inorganic content variability on quantifying glucocorticoid and thyroid hormone metabolites in large felines. Objective 2: Evaluating the impacts of ecological and anthropogenic factors on tiger stress physiology within Terai-Arc landscape, India. Objective 3: Spatio-temporal analyses of leopard physiological responses to varying tiger density in Rajaji Tiger Reserve, Uttarakhand, India. The present study quantified various fine and broad scale ecological and anthropogenic factors that can potentially impact physiological health measures of tigers at landscape level and evaluated impact of each factor and discussed the factors, areas and population in immediate need of conservation attention. In this study discussed the need for species specific standardization and validation of hormone extraction and quantification procedure. I looked at a potential factor that can confound hormone metabolite measures from faecal samples and provided solutions to control that factor in free ranging large carnivores. Study quantified physiological responses of leopard to changing competition intensity from dominant predators (tigers). I assessed and discussed the reasons of past and present physiological status of leopard in light of diet quality, competition intensity and habitat productivity. This study with its methodological improvement, landscape level approach and an attempt to provide physiological evidence of cost of interspecies competition (first for tiger-leopard dynamics) is an important contribution in the field of conservation physiology