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| Last Updated:: 17/04/2019

Humans leaving little room for Bengal tiger






Indians are causing more stress to wild tigers than their counterparts in Russia. This has been established through a unique study by the Centre for Cellular and Molecular Biology’s Laboratory for Conservation of Endangered Species (La-CONES) of Hyderabad along with Russian researchers.




Scientists say that the human pressure of both tourists and local residents is much higher on Indian tigers. They fear the increased stress may even affect their reproductive abilities. The researchers also found that Indian tigers were more stressed out despite have a larger prey base and better climatic conditions.




The research titled ‘Comparison of tigers’ faecal glucocorticoids level in two extreme habitats’ was published in Plos One journal on April 10. It studied the Royal Bengal Tiger in Sariska, Kanha and Bandhavgarh in comparison to Amur tigers in Russia.




Govindhasawamy Umapathy, principal scientist with LaCONES said, “As part of an Indo-Russian bilateral research programme we have done the study by collecting faecal samples of the two sub-species over the past few years. We studied the levels of glucocorticoid hormone and found that Faecal Glucocorticoid Metabolite (FGCM) concentration is more in Indian tigers than in Amur tigers indicating that Indian tigers are subjected to more physiological stress.”




Scientists used non-invasive technology for testing hormone levels instead of collecting blood samples. Vinod Kumar of LaCONES and Sergey V Naidenko of the Insitute of Ecology and Evolution, Moscow were part of the research.





Source: Times of India, 17 April, 2019, Chennai.