Biological Conservation71(1995),333–338; DOI10.1016/0006-3207(94)00057-W. Original byline K.Ullas Karanth verified in original paper; initial not expanded. Primary abstract: Nagarahole study1991–1992,31photographic captures of10individuals over9occasions,387trap-nights. Models allow individual detection heterogeneity. Indexed publisher abstract inspected; direct publisher403.