Fig. 3From: A pilot study to estimate the population size of endangered Galápagos marine iguanas using dronesGraphic showing comparisons of methods used against marine iguana abundance. A Bar plot comparing the marine iguana abundance (number of individuals estimated/counted) among the three sampling methods used for all sites sampled; B Box plot comparing the numbers of marine iguanas counted (as percentages) during surveys using aerial and simple counts approaches as compared to estimates gained using the capture mark-resight (CMR) methodBack to article page