Statement of Concern by Tiger Biologists on the WWF-GTF Report

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On Sunday, April 10th, the World Wildlife Fund (WWF) and Global Tiger Forum (GTF) issued a report stating that the world’s wild tiger population was on the rise, and on track for a doubling in a decade. We do not find this report1 and its implications scientifically convincing.

  1. Having devoted years of our lives to trying to understand and save wild tigers, we believe their conservation should be guided by the best possible science. Using flawed survey methodologies can
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Man-eaters — When Caring Less May Actually Help

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Conservationists should be concerned about saving the species, rather than every individual tiger.

The shooting of a man-eating tiger, as it happened recently in the Nilgiris, Tamil Nadu — barely two weeks after two other tigers preyed on four people in neighbouring Karnataka — invariably polarises public opinion. Locals, whose lives are at risk, want maneaters shot. Animal lovers, on the other hand, demand their “safe capture.” Caught in the middle, officials have to confront increasingly angry mobs, while authorities … Read More

Counting Tigers Reliably — Combining Information From Multiple Sources

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Authors Arjun M. Gopalaswamy, K. Ullas Karanth, Andy Royle, Mohan Delampady, James D. Nichols and David W. Macdonald demonstrate innovative approaches that integrate information from photographic capture-recapture and genetic data to derive more robust estimates of tiger densities in Bandipur Tiger Reserve, India. These are the highlights of their study published in the journal Ecology in 2012.

In landscapes where wildlife occurs in low densities, gathering information from a single method often does not allow accurate estimation of population densities … Read More