Sreedhar Vijayakrishnan

Research Scholar, Western Ghats

Sreedhar 20vijayakrishnan

M.Sc. Wildlife Biology and Conservation

I’m interested in elephant behaviour especially in human-modified landscapes and in conflict situations. I’ve been captivated by the species since I can remember, and it was this admiration to elephants that led me to pursue a Masters in Wildlife Biology and Conservation. For my Masters dissertation, I investigated the behavioural and physiological responses in Asian elephants in a human-dominated landscape in the Western Ghats. I believe in multidisciplinary approaches involving behaviour, physiology, genetics, and a wide range of other areas in dealing with larger-than-life issues such as conflict and this is what got me particularly interested in the Anamalai Elephant Programme of the Nature Conservation Foundation.

I am currently pursuing a PhD from the National Institute of Advanced Studies, Bengaluru.



The Elephant Hills

From conflicts to coexistence in the Anamalai hills


  • Journal Article
    Physiological stress responses in wild Asian elephants Elephas maximus in a human-dominated landscape in the Western Ghats, southern India
    General and Comparative Endocrinology

    PDF, 749 KB

    Increasing anthropogenic pressures on forests, especially in the tropical regions of the world, have restricted several large mammalian species such as the Asian elephant to fragmented habitats within human-dominated landscapes. In this study, we assessed the effects of an anthropogenic landscape and its associated conflict with humans on the physiological stress responses displayed by Asian elephants in the Anamalai Hills of the Western Ghats mountains in south India. We have quantified faecal glucocorticoid metabolite (FGM) concentrations in focal individual elephants within and across herds, inhabiting both anthropogenic and natural habitats, and evaluated their physiological responses to different socio-ecological situations between November 2013 and April 2014. Physiological stress responses varied significantly among the tested elephant age- and sex categories but not across different types of social organisation. Adults generally showed higher FGM concentrations, even in the absence of stressors, than did any other age category. Males also appeared to have higher stress responses than did females. Although there was no significant variation in mean stress levels between elephants on the plateau in the absence of human interactions and those in adjacent, relatively undisturbed forest habitats, FGM concentrations increased significantly for adult and subadult individuals as well as for calves following drives, during which elephants were driven off aggressively by people. Our study emphasises the general importance of understanding individual variation in physiology and behaviour within a population of a seriously threatened mammalian species, the Asian elephant, and specifically highlights the need for long-term monitoring of the stress physiology and behavioural responses of individual elephants across both human-dominated and natural landscapes. Such studies would not only provide comprehensive insights into the adaptive biology of elephants in changing ecological regimes but also aid in the development of effective management and conservation strategies for endangered populations of the species.

  • Popular Article
    Varttamānakāla Gajasanrakṣaṇaṁ
    Aranyam Monthly

    PDF, 9.81 MB

  • Journal Article
    Whose habitat is it anyway? Role of natural and anthropogenic habitats in conservation of charismatic species
    Tropical Conservation Science 11: 1-5.

    PDF, 493 KB

    Developmental activities have been one of the major drivers of conversion of natural forest areas into mosaics of forest fragments, agriculture, and plantations, threatening the existence of wildlife species in such altered landscapes. Most conservation research and actions are protected area centric and seldom addresses the importance of landscape matrices around these protected areas in providing habitats to a wide range of species. In this article, we bring out the crucial role of natural and anthropogenic habitats for the existence of three charismatic species, namely, Asian elephants, leopard, and lion-tailed macaques. The larger public perception of where the animals should be and where the animals actually are is also discussed. We emphasize that, while habitat generalists often adapt behaviorally and ecologically to modified landscapes, habitat specialists, such as the lion-tailed macaques could find survival harder, with increasing anthropogenic pressures and loss of their habitats.

  • Book Chapter
    Primates in Urban Settings
    International Encyclopedia of Primatology

    PDF, 115 KB

  • Popular Article
    Pachyderm Problems
    Saevus September 2015

    PDF, 4.67 MB

  • Popular Article
    Before the Last Trumpet
    Down to Earth 15 April 2013

    PDF, 183 KB

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