35. Karanth, K.U., Nichols, J.D., Sen, P.K. & Rishi, V. (2002) Monitoring tigers and prey: conservation needs and managerial constraints. Monitoring Tigers and Their Prey: A Manual for Researchers, Managers and Conservationists in Tropical Asia (eds K.U. Karanth & J.D. Nichols), pp. 1–8. Centre for Wildlife Studies, Bangalore.