PhD Theses (WII)

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Author: search.filters.author.Gopi, G.V.Subject: search.filters.subject.Birds

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    Patterns of Avian Diversity in different land-use and forest patch size of Kumaon Himalayas, Uttarakhand
    (Wildlife Institute of India, Dehradun, 2021) Arya, Sumit Kumar; Gopi, G.V.
    The present study was conducted in the Pithoragarh districts of the Kumaon Himalayas in Uttarakhand. The point count method was performed in matrices of agriculture land and forests of the lower Pithoragarh district to assess bird diversity patterns in different land use, habitat types, and disturbance regimes. A multiscale landscape heterogeneity approach was performed for determining the impact of forest patch size and vegetation structure on bird diversity. For assessment of the seasonal changes in the bird diversity pattern, a village ecosystem was monitored in the landscape.
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    Nesting ecology of colonial waterbirds at Bhitarkanika mangroves, Orissa
    (Wildlife Institute of India, Dehradun, 2010) Gopi, G.V.; Pandav, Bivash
    Colonial nesting is an important feature among a majority of the members of Pelicaniformes and Ciconiiformes. The nesting colonies of these birds that represent spatial and temporal clumping of nests are popularly referred to as heronries. One of the largest heronries in India is located in the Bhitarkanika mangroves, along the east coast of India. Birds use five species of mangrove trees for nesting which include Excoecaria agallocha (Guan), Heritiera fomes (Bada Sundari), Cynometra iripa (Singada), Hibiscus tiliaceus (Bania), Tamarix troupii (Jagula) for nesting in the heronry. . The breeding birds in this mixed species colony are Asian Openbill, Great Egret, Intermediate Egret, Little Egret, Cattle Egret, Grey Heron, Purple Heron, Black-crowned Night Heron, Little Cormorant, Darter, and Black-headed Ibis. The heronry in Bhitarkanika is located in an island covered with mangrove vegetation. The availability of large number of nest trees in terms of the mangrove forest and foraging areas in terms of the wetlands inside the forest and the paddy fields surrounding the forest are believed to be the factors favouring such large congregation of breeding water birds in the heronry
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    Foraging ecology of Great-Slaty Woodpecker in and around Pawalgarh Conservation reserve in Western Himalaya
    (Wildlife Institute of India, Dehradun, 2024) Kaur, Sarabjeet; Gopi, G.V.; Uniyal, V.P.
    The Great Slaty Woodpecker (Mulleripicus pulverulentus, Temminck 1826) is an old-world woodpecker that prefers mature and old-growth dipterocarp forests (including Shorea robusta, Sal) across its known distribution range. The study reveals population demography, the social system and foraging behavior from logged forest and infer the distribution and home range of the Great Slaty Woodpecker, a cooperative breeding bird species, in and around the Pawalgarh Conservation Reserve in the western Himalaya of Uttarakhand state. This study presents the first census conducted for the Great Slaty Woodpecker, providing an ecological baseline for the species population estimation from its known distribution range. I inferred the home range size of each group based on 161 independent sightings of 11 family groups. These sightings represent behaviors such as foraging, nesting, roosting, vocalizations, and territory defense