Figure 5

Functional acoustic gate/curtain example with (a) a 400-m maximum effective detection range and no CPDI effect considered and (b) a CPDI effect with a 200-m minimum effective detection range and a 400-m maximum effective detection range considered. In examples (a) and (b), i) shows the expected detection range, with gray areas showing the extent of minimum effective detection range, ii) shows the potential pathways the study animals could take as they cross the receiver gate, and iii) shows a plot of the distance (m) of transition across the gate within effective detection range at 50-m intervals from left to right (assuming a straight transition with no deviation).