PhD Theses (WII)

Permanent URI for this collectionhttp://192.168.202.180:4000/handle/123456789/104

Browse

Author: search.filters.author.Hussain, S.A.Subject: search.filters.subject.Mammals

Search Results

Now showing 1 - 4 of 4
  • No Thumbnail Available
    Item
    Food habits of sympatric large herbivores in Kaziranga National Park, Assam, India
    (Wildlife Institute of India, Dehradun, 2023) Devi, Anita; Hussain, S.A.; Badola, Ruchi
    This study aims to a. address the welfare state of Asiatic lions (Panthera leo persica) based on environmental factors and individual-level differences, and b. propose a methodological framework for evaluation and improvement welfare in captive environments. In this chapter, I will set up the context for this study with a brief chronology of our understanding of the origin of animal welfare and the science of zoo biology and their relevance to the Asiatic lion conservation breeding programme (CBP)
  • No Thumbnail Available
    Item
    Assessment of genetic variation in Sambar deer (Rusa unicolor)
    (wildlife Institute of India, 2014) Gupta, Sandeep Kumar; Hussain, S.A.
    This study is focused on the examination of intra and inter-species genetic variation among Indian sambar (R. u. unicolor) populations using mitochondrial DNA (mtDNA) and nuclear DNA markers. Sequence variation in a partial fragment of mtDNA control region was examined from the biological samples collected from Western Ghats, Deccan Peninsula, Semi-arid and Gangetic plains. It is also essential to know the phylogenetic variations (if any) among sambar population in India for identification of population(s) for proper conservation management. Therefore, the following objectives were set forth: (a) to examine the intra-species relationship among sambar populations across various biogeographic zones in India, (b) to study the molecular systematic of sambar in order to understand its phylogenetic structure and its relationships with other cervids; and (c) to examine the genetic diversity and gene flow pattern among sambar populations. The key research questions were (a) is there any variation in phylogenic position of sambar across biogeographic zones of India? (b) what is the precise phylogenic position of sambar with respect to other cervids? (c) does the population genetic structure of sambar differ across biogeographic zones of India? and (d) what is the status of gene flow in sambar across biogeographic zones? In this study, one ancient evolutionary significant unit (ESU) of sambar was identified from Western Ghats.
  • No Thumbnail Available
    Item
    Demographic status and genetic variation of sangai in in Keibul Lamjao National Park, Manipur.
    (Wildlife Institute of India, Dehradun, 2012) Angom, Sangeeta; Hussain, S.A.
    The present study was intended to improve upon the existing ecological and genetic knowledge base of the severely fragmented and isolated population of sangai in the Keibul Lamjao National Park. The major objectives of the study were to estimate the abundance and demographic parameters of sangai and the associated cervids in the Park and to assess the genetic variability using mtDNA (cytochrome b and control region) genes and polymorphic microsatellite markers so as to develop appropriate measures for the conservation of this endangered species. The demographic status of sangai and hog deer in Keibul Lamjao National Park was determined by conducting the population estimation exercise during 2006 - 2008 using point count method. Deers were counted from eighteen bamboo machans and four observation points.
  • No Thumbnail Available
    Item
    Ecology of otters in Corbett Tiger Reserve.
    (Wildlife Institute of India, Dehradun, 2008) Nawab, Asghar; Hussain, S.A.
    Otters are obligately tied to aquatic environments and are recognized as one of the top predators in the freshwater systems. Major threats to otter survival are the loss of wetland habitats, reduction in prey biomass and pollution. Developmental projects such as dams and barrages, and aquaculture activities have taken their toll on wetlands and consequently on the otters. Poaching, however, remains a major threat to their survival. The study was envisaged to appraise the impacts of making of dams on the ecology of otters in Corbett Tiger Reserve, since it is believed that the habitat of otters got fragmented due to the creation of a dam on the Ramganga River under the Kalagarh Multipurpose Hydroelectric Project. It is generally believed that dams affect otter. In the Corbett Tiger reserve both smooth-coated and Eurasian otter have been reported. Our preliminary survey revealed that at the low lying areas such as the Ramganga, Mandal and Palain rivers, smooth-coated otter occurs. This study complies with smooth coated otter limited to the above mentioned areas only and data were collected for winter and summer seasons respectively between 2001 and 2004. The study was conducted with the following objectives: (a) To study the status and distribution pattern of otters in the Corbett Tiger Reserve and the adjacent aquatic ecosystems. (b) To examine the Resource use pattern of otters in relation to habitat and food availability. (c) To study the potential threats to otter populations in the study area.