Journal Article

2017

Lingaraja S. S.Swayam ChowdharyRashmi BhatSanjay Gubbi
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Evaluating a survey landscape for tiger abundance in the confluence of the Western and Eastern Ghats

Dueto the current depleting trends in tiger populations, range countries havecommitted to double tiger numbers by the year 2022. However, some of the areas,including source sites, across the range countries lack scientificallyestimated tiger numbers both at the larger landscape and at the protected arealevel. Here we report a population of tigers, from Biligirirangaswamy TempleTiger Reserve, using camera trap based capture-mark recapture in a spatiallyexplicit Likelihood and Bayesian analyses that yielded an estimate of ~55tigers with a density of about 6.8 tigers/100 km2. BiligirirangaswamyTiger Reserve nestled in a larger tiger landscape perhaps contributes dispersingindividuals to the adjoining forests calling for integrated monitoring andmanagement efforts for the entire landscape. This data set could help indesigning long-term, landscape level plans, and outcomes.

Current Science, Vol 113, No. 9, 1759-1763.