Figure 2.

95% confidence intervals for the track count CV approach and the traditional CV approach for regular surveys with a 60% intensity for both Kafue and Hwange. The dark blue vertical line represents the true population size. Missing confidence intervals are cases where the confidence interval could not be calculated because no lions were detected. The track count CV approach often did not contain the true population size, and bias in estimates was not consistent, while the traditional CV approach contained the true population size but with confidence intervals too broad to be biologically meaningful