Estimated population sizes, calculated using Huggins closed population models and densities of five populations of the Southern Darwin’s frog (Rhinoderma darwinii).

aNumber of counts.bModel selected (Model: letter codes indicate detection probability dependence: t = time; b = behaviour; and h = heterogeneity).cDetection probability. Recapture probability at Inio 1 showed a pattern of initially low values for the early capture occasions, higher values during the middle of the period, then low values, similar to those at the start. A simpler model with only two time periods (t1: early/late and t2: mid) was therefore preferred to a fully time varying model. h1 and h2 refer to recapture probabilities for heterogeneity mixtures, and p1 to the estimated proportion of the population in mixture 1.