ESTIMATION OF STRIPED HYENA HYAENA HYAENA POPULATION USING CAMERA TRAPS IN SARISKA TIGER RESERVE, RAJASTHAN, INDIA

摘要

We used camera trap based capture-recapture method to estimate the population size of Striped Hyena Hyaena hyaena in Sariska Tiger Reserve. Twenty-five days of camera trapping was done with a sampling effort of 1,675 trap nights from January to April 2008. Camera traps yielded a total of 85 Hyena photographs of 26 individuals within an effective trapping area of 229.7 sq. km. Heterogeneous Jacknife model was best fit in estimating population with a capture probability of 0.31 P(hat). Population size was 34 +/-(SE 5.4) and density was estimated as 15.1 +/- 6.2 hyena/100 sq. km (spatially explicit model). The study revealed that camera based capture-recapture method is an effective tool for assessing the population size of Striped Hyena in Sariska.