Camera-traps are a cost-effective method for surveying terrestrial squamates: A comparison with artificial refuges and pitfall traps
Fig 5
Cost ($’000) per squamate species detected as a function of survey protocol.
Black dot estimates are calculated from the average marginal cost over all values of RoR and hourly labour, and white dots are calculated from the average marginal cost for a realistic scenario whereby RoR is < 10% and hourly wage > $10. Survey protocols are: All-74, detections from all protocols during the 74 days; CT-74, detections from camera traps during the 74 days; All-16, detections from all using all protocols during the 16 days of the labour-intensive methods survey; CT-16, detections from camera traps during the 16 days of the labour-intensive methods survey; and LI, combined detections of artificial refuges (AR) and pitfall traps (PF). Central dots represent the mean of the posterior distribution and bars represent 95% credible intervals.