PhD Theses (SACON)

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    Ecology of Indian Rock Python (Python molurus molurus Linn.1758) in Keoladeo National Park, Bharatpur, Rajasthan, India.
    (SACON, 2012) Ramesh, C.; Bhupathy, S.
    Snakes in India are one among the richest assemblages in the world with about 279 species reported so far. However, studies focusing on their ecology are scanty. In tropical ecosystems, it is important to understand ecology of large bodied snakes such as pythons for proposing measures to conserve them. In this context, assessment of the python habitat and understand burrow ecology, population ecology, diurnal activity, food and feeding habits and breeding biology were investigated. The results provided are based on visual observations on free ranging Indian python in Keoladeo National Park (KNP) Bharatpur, Rajasthan, India between October 2007 and April 2010.
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    Ecology and Conservation of the Spot-Billed Pelican Pelecanus Philippensis in Andhra Pradesh, India
    (SACON, 2011) Sheeba, N.; Bhupathy, S.
    Wetlands are the important bird h a habitats and birds use them as migratory resorts or for breeding, feeding and roosting. Birds are one of the best indicators of the s tatus of a wetland. Examining the environmental correlates of species distribution and life history traits is one of the best protocols to assess t he indicator properties of target species groups. The Spot · billed Pelican is one of the near threatened species found in India. The s tatus and colony size of the Spot-billed Pelican were studied in Andhra Pradesh . Nest surveys were carried out in Uppalapadu, Ramachandra palayam, Nela pattu and Telineelapuram. Birdcount and habitat use studies were done at Kolleru, Naupada Swamp and Kakara pally Creek, and Nelapattu, the three foraging sites. Recent population trends indicate increasing breeding population of the Spot-billed Pelican. To understand the habitat requirements and factors determining habitat selection, evaluation of breeding performance, distribution of the colony and adaptations were studied
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    Breeding Biology of Olive Ridley Sea Turtle, Lepidochelys olivacea (eschcholtz, 1829) along the Poompuhar Coast, Tamilnadu, South India
    (SACON, 2011) Gokulakrishnan, J.; Bhupathy, S.
    The Olive Ridleys is the most common marine turtle found in Indian waters, and is distributed on both east and west coasts including the offshore island s. Most of the ecological works on the Olive Ridleys in India have been carried out in mass nesting beaches of Orissa. This species nests sporadically all over India, but barring a anecdotal notes, information on the ecology of this species is scanty in sporadic nesting areas. Hence, the present study was carried out to, (1) Understand the nesting habitats of Olive Ridleys along the (Poompuhar) Tranquebar- Pazhaiyar coast (2) Study the breeding biology of Olive Ridleys including offshore activities along the southeast coast. Bay of Bengal (3) Study the mortality and other anthropogenic pressure on marine turtles along the Tranquebar- Pazhaiyar coast, and (4) Conservation of Olive Ridleys along the southeast coast, Bay of Bengal. The present study was conducted along the Poompuhar coast (51 km), Bay of Bengal, Tamil Nadu from November 2004 to May 2010. Fishing and agriculture are major occupations of the local inhabitants.
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    Distribution Pattern of Amphibians in Megamalai Landscape, Western Ghats, Tamil Nadu
    (SACON, 2011) Srinivas, G.; Bhupathy, S.
    Amphibians. in particular anurans, contribute a significant proportion or the vertebrate biomass in all the terrestrial and freshwater ecosystems. They function as important predator and prey species. However, studies focusing on ecology of these taxa in Indian subcontinent arc scanty. The present study had the following objectives: (1) understand the population of amphibians in the Megamalai landsc;lpe. (2) study the distribution pattern of amphibians with respect to elevation categories and vegetation types and (3) suggest conservation measures. The present study was carried out in Megamalai Hills of Theni Forest Division. From December 2006 November 2008. In the present study. three belt transects Mavadi,. Suruli and Vellimalai were laid from hilltop to the bottom stratified at 200m interval
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    Communities of small mammals and small carnivores in the Teesta River Basin, Sikkim Himalaya, India
    (SACON, 2008) Thapa, Jaya; Bhupathy, S.
    Differences in communities of plants and animals along environmental gradients have been the basis for many ecological theories. Among the first geographical patterns to be recognized in ecology was the climatic gradient in body size of animals, later formalized as the Bergmann 's rule. Latitudinal and altitudinal gradients in species richness are other geographical patterns that have long since been recognized. The different nature of gradients and the ecological factors that cause such gradients have both been subjects of considerable debate in recent decades. Community structure in animals can also be influenced by various factors such as vegetation, biological constraints and historical factors, which may not form gradients. In this dissertation I have examined the in fluence of altitude and vegetation on communities of small mammals and small carnivores in the 11 Himalayan mountain ranges in the Indian State of Sikkim. The sharp altitudinal gradient from 230 m to 8586 m and the variety of vegetation types in this small state,. The overall goal of this study was to examine the influence of altitude and vegetation on the organizalion of the small mammal community in Sikkim Himalaya, with respect to its species richness, composition. distribution, and abundance. The specific objectives of this study were: a. To test the hypothesis that the body weight of murid rodents and shrews should respond to the sharp altitudinal gradient; b. To identify the pattern of variation in the community structure of the murid rodents and shrews along an altitudinal gradient and among different vegetation types; c. To test the hypothesis that murids and shrews differ in microhabitat use in a manner that is consistent between vegetation types; and d. To examine the influence of altitude and vegetation types on the composition and relative abundance of the small carnivore community, as well as their diet. This study was carried out in the North and South Districts of Sikkim in the Teesta River Basin, between 230 m to 3700 m altitude, from June 2003 to April 2004 and from May 2005 to December 2005
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    Resource utilization patterns of reptiles in the Tropical Dry Mixed Deciduous Forest of Anaikatty Hills, Western Ghats, India.
    (SACON, 2007) Mukherjee, Debanik; Bhupathy, S.
    The western ghats is one of the 34 globally recognized biodiversity hot spots. Among the 506 species of reptiles reported distributed in India 165 are distributed in the Western ghats. The concept of a biotic community may be defined as tn assemblages of various organisms living together and interacting at all trophic levels. The present study was undertaken with the following objectives (1) to know the suitability of various techniques for sampling reptiles in tropical mixed dry forest (2) To study aspects of population of reptiles in the Anaikatty hills in terms of species richness, diversity and relative abundance (3) to understand the patterns of resource use by reptiles at various spatio-temporal level.