IUCN / SSC Cat Specialist Group - Digital Cat Library |
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| Singh, R.; Pandey, P.; Saxena, L.; Qureshi, Q.; Sankar, K.; Goyal, S.P. | |
| Comparison of tiger population estimated using noninvasive techniques of pug mark, camera trap and DNA based analysis of hair and scat in Ranthambhore Tiger Reserve | |
| 2012 Full Book | |
The population estimation of large carnivores has always been controversial. Several methods have been employed to estimate tiger populations in India; "the pugmark" based expert system and "Camera Trapping" in a mark-recapture framework being the most widely used. However, methods used for population estimation of large carnivores have always been marred with one or the other problem. Thus in present study, we aimed to (i). determine tiger population employing pugmark, camera trap (sight and re-sight) and non-invasive DNA based techniques using scat and remotely collected hair in intensive study area of ca. 300-400 sq. km of Ranthambhore Tiger Reserve, Rajasthan, and (ii). compare tiger estimates determined by various methods and seasons with respect to precision and accuracy and suggest appropriate protocols which are practical, suitable at variety of scales, and cost effective for estimating tiger numbers for dry tropical habitats. Information on population demographic such as survival rate and sex ratios studies needed to understand social structure is lacking for Bengal tiger, therefore it is proposed for a need to collect information for their population for a period of another four year to get such information for 10 years which is needed for understand population demographic processes and use of species by tiger individuals in respect to their social relationship. |
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