Fig. 5.

Inferring relative abundances under the models presented in Box 3. A–B: Posterior estimates of abundances from data simulated for five visits per location with $N_1=100$ and $N_2=200$ and detection probability $p=0.2$ (dashed vertical lines). B: Posterior distribution of the relative abundance of $N_2/N_1$ from the data of A. C–F: Posterior distributions on $N_0$ (C), $p_0$ (D) and the relative abundances ${\rho }_l$ (E and F, mean and 90% quantile, true values as orange dots) for each location $l$ under the multi-location relative abundance model outlined in Box 3 and from data simulated with $N_0=100$, ${\sigma }_{\rho }^2=0.2$, $p_0=-1$ and ${\sigma }_{\pi }^2=0.5$ and either $L=J=20$ (black, E) or $L=J=100$ (blue, F)