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Ecology & Environment
Mahesh

11/03/22 15:28 PM IST

Tiger Density in India

In News 

  • Preliminary findings of a study by the Wildlife Institute of India (WII) suggest that the density of tigers in the Sunderbans may have reached the carrying capacity of the mangrove forests, leading to frequent dispersals and a surge in human-wildlife conflict.

    Density of Tiger in India 
  • In the Terai and Shivalik hills habitat — think Corbett tiger reserve, for example — 10-16 tigers can survive in 100 sq km.
  • This slides to 7-11 tigers per 100 sq km in the reserves of north-central Western Ghats such as Bandipur, and to 6-10 tigers per 100 sq km in the dry deciduous forests, such as Kanha, of central India.
  • A joint Indo-Bangla study in 2015 pegged the tiger density at 2.85 per 100 sq km after surveying eight blocks spanning 2,913 sq km across the international borders in the Sunderbans.
Tiger Corridors - Not a Solution 
  • But though vital for genes to travel and avoid a population bottleneck, wildlife corridors may not be the one-stop solution for conflict.
  • First, not all dispersing tigers will chance upon corridors simply because many will find territories of other tigers between them and such openings.
  • Even the lucky few that may take those routes are likely to wander to the forest edges along the way.
  • Worse, the corridors may not lead to viable forests in reserves such as Sunderbans, bounded by the sea and villages.
Source- Indian Express 

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