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    Singh, H.S. and Gibson, Luke 2011. A conservation success story in the otherwise dire megafauna extinction crisis: The Asiatic lion (Panthera leo persica) of Gir forest. Biological Conservation, Vol. 144, Issue. 5, p. 1753.


    Banerjee, Kausik and Jhala, Yadvendradev V. 2012. Demographic parameters of endangered Asiatic lions (Panthera leo persica) in Gir Forests, India. Journal of Mammalogy, Vol. 93, Issue. 6, p. 1420.


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Demographic structure and abundance of Asiatic lions Panthera leo persica in Girnar Wildlife Sanctuary, Gujarat, India

  • Kausik Banerjee (a1), Yadvendradev V. Jhala (a1) and Bharat Pathak (a2)
  • DOI: http://dx.doi.org/10.1017/S0030605309990949
  • Published online: 21 January 2010
Abstract
Abstract

Asiatic lions Panthera leo persica, once confined to the 1,883 km2 Gir Protected Area in Gujarat, India, have in the past 2 decades colonized the adjacent Girnar forest, coastal scrub and agro-pastoral areas covering c. 10,000 km2. In May 2008 the Government of Gujarat declared 180 km2 of the sacred Girnar forests a Wildlife Sanctuary. We obtained data on location, age, gender and group composition of lions in Girnar Wildlife Sanctuary from opportunistic sightings during March–May 2008 and from systematic surveys in April 2008 (six surveys of 3–4 days each), totalling 81 lions on 40 occasions. Of the 81 sightings 43% were in the recruitment age group. Adult sex ratio was 0.87 males : 1 female. In the systematic survey we made 26 sightings of nine individuals, identified from their vibrissae patterns and permanent body markings, and used these for population estimation using a capture–recapture analysis. The population estimate using the best fit null model Mo was 10 ± SE 1.2 giving an adult lion density of 5.6 ± SE 0.7 per 100 km2. Population viability analysis emphasized the importance of immigrants for the persistence of this small population. One immigrant in 2 years reduced the probability of extinction by 16%. Conservation of the habitat matrix to the south-east of the Sanctuary, used as a corridor for movement between Girnar and Gir, by declaring it an eco-sensitive zone would facilitate the long-term survival of the Girnar lion population.

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*Wildlife Institute of India, Dehra Dun, Uttarakhand, India. E-mail jhalay@wii.gov.in
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Oryx
  • ISSN: 0030-6053
  • EISSN: 1365-3008
  • URL: /core/journals/oryx
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