PhD Theses (WII)

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Author: search.filters.author.Rawat, G.S.Subject: search.filters.subject.Birds

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    Distribution of breeding Phylloscopus and Seicercus warblers in the Himalayas: Role of ecomorphology and competition.
    (Wildlife Institute of India, Dehradun, 2012) Ghosh, Mousumi; Rawat, G.S.; Price, Trevor
    Present study is carried out for the overarching goal of understanding the ecological and historical determinants of geographic and altitudinal distribution of sixteen breeding Phylloscopus and Seicercus species in the Himalayas. The broad research objectives were as follows: 1. Assess the availability of arthropod resources across the eastern and western Himalaya along the elevational gradients. 2. Identify the climatic correlates of the breeding distribution of Phylloscopidae. 3. Examine the geographic variation in foraging ecology of Phylloscopidae across the Himalayan bioclimatic gradient.
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    An ecological study on the pheasants of Great Himalayan National Park, Western Himalaya.
    (Wildlife Institute of India, Dehradun, 2003) Ramesh, K.; Rawat, G.S.
    The primary focus of the study was to describe the ecological and spatial distribution of three sympatric pheasant species, namely, Himalayan monal (Lophophorus impejanus), koklass (Pucrasia macrolopha) and western tragopan (Tragopan melanocephalus) in the Great Himalayan National Park (GHNP; 31 0 33' - 31 0 57' N and 770 17' - 770 52' E) in Himachal Pradesh, India. The specific were to: (i) review and test the currently available count techniques and provide estimates of relative abundance; (ii) document group size characteristics; (iii) describe habitat preference and investigate species coexistence; and (iv) develop a spatial model to predict availability of the potential habitats and the probability of occurrence of the study species. The study design included three broad approaches, namely, 1) field sampling, to estimate relative abundance and other behavioral and ecological parameters, 2) associative approach, to establish a relationship between the ecological distribution of the study species and habitat characteristics, and 3) Geographical Information System (GIS) based predictive spatial modelling. An area of 16 km2 was selected within GHNP, based on reconnaissance survey and literature, to serve as an intensive study area
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    An ecological study of sympatric hornbills and fruiting patterns in a tropical forest of Arunachal Pradesh.
    (Wildlife Institute of India, Dehradun, 2001) Datta, Aparajita; Rawat, G.S.
    The tropical forests in north-east India have a diverse assemblage of hornbills (Bucerotidae), ranging from the cooperatively breeding Brown hornbills (Anorrhinus spp.) to the monogamous and territorial Great hornbill (Buceros b{cornis). Focussing on three sympatric species, the Great hom bill (Buceros bicornis), the Wreathed hornbill (Aceros undulatus), and the Oriental Pied hornbill (Anthracoceros albirostris), in a lowland semievergreen forest of Arunachal Pradesh this study attempted. the dispersal syndromes of tree species were evaluated, and their patterns of flowering and fruiting examined. The study was conducted in the lowland semievergreen forests of Pakhui National Park, western Arunachal Pradesh.