Theses and Dissertations

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Author: search.filters.author.Qureshi, QamarSubject: search.filters.subject.Occupancy

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    A geospatial framework to assess ecological connectivity & their persistence for Central India Landscape.
    (Wildlife Institute of India, Dehradun, 2019) Saini, Swati; Qureshi, Qamar
    The study explored the occupancy probability for carnivores in 100 sq km grids and at 25 sq.km for herbivore to surrogate, their habitat suitability. These models were further used to model corridors between protected areas using Circuit theory least cost pathway analysis and estimated the changes in land use land cover in and around the identified corridors using the time series and change detection technique. The region of central India comprising five states viz. Madhya Pradesh, Maharashtra, Chhattisgarh, Odisha and Jharkhand has been taken up as study area. . The research work was carried out with three objectives: 1. Mapping Ecological connectivity between source populations of representative species of central Indian Landscape. 2. Assessment of spatio-temporal land use /land cover changes using time series & predictive change modelling in and around corridor habitats of the central Indian Landscape. 3. To evaluate the macro drivers of change across major linkages and attempt to model their persistence.
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    Ecology of sympatric small carnivores in Mudumalai Tiger Reserve, Tamil Nadu
    (Wildlife Institute of India, Dehradun, 2013) Kale, Riddhika; Sarkar, K.; Qureshi, Qamar
    This study aimed to examine the abundance and occupancy of small carnivores with the application of photographic captures using camera traps and diet composition of small carnivores through faecal analysis, investigate seasonal species-habitat relationships from microhabitat (non-spatial) and remotely sensed features (spatial) to understand how these variables govern their occurrence pattern and predict the distribution of small carnivores in Mudumalai Tiger Reserve, Western Ghats. The study was conducted from 2009-2011 in Mudumalai Tiger Reserve (11°32' 11°43'N; 76°22'-76°45'E), Western Ghats. This study will critically improve our state of knowledge to protect lesser carnivores and aid the development of theory on their social structure, behavior and habitat preferences.Study species include jungle cat (Felis chaus), leopard cat (Prionailurus bengalensis), rusty spotted cat (Prionailurus rubiginosus), common palm civet (Paradoxurus hermaphroditus), small Indian civet (Viverricula indica), brown palm civet (Paradoxurus jerdoni), grey mongoose (Herpestes erdwardsii), ruddy mongoose (Herpestes smithii) and stripe-necked mongoose (Herpestes vitticollis). The objectives of this study area as follows:- 1. To determine the abundance and occupancy of small carnivores in Mudumalai Tiger Reserve. 2. To study the dietary pattern of small carnivores. 3. To determine spatial and non-spatial variables governing the occupancy of small carnivores and 4. To predict the distribution pattern of small carnivores through habitat suitability modeling in Mudumalai Tiger Reserve.
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    Factors affecting habitat occupancy of tiger in the Terai Arc landscape, India
    (Wildlife Institute of India, Dehradun, 2009) Rajapandian, K.; Goyal, S.P.; Qureshi, Qamar
    The goal of this study, therefore, was to identify the factors affecting the distribution of tiger and assess the distribution of suitable habitat patches and the connectivity between these patches for successful dispersal in the Indian part of TAL. In the present study developed GIS probability models for tiger and its prey species and a spatially explicit individual-based dispersal model (SEIBM) for tiger in order to identify and assess the factors which are affecting the occupancy of tiger and subsequently predict potential suitable habitats and estimate the connectivity between the fragmented subpopulations in the Indian as well as between Indian and Nepal part of TAL. Data were collected on presence/absence of four wild ungulates (sambar Cervus unicolor, chital Axis axis, nilgai Boselaphus tragocamelus, and wild pig Sus scrofa), which are important prey species of tiger in two phases during the period between 2002 and 2006. The results of this study, in addition to contributing to the knowledge on factors affecting suitable habitat distribution and dispersal of tiger, have many implications for conservation of tiger in the Indian part of TAL. This study has also identified critical areas needed for management initiatives for functional unit of tiger conservation in the TAL.