Drones for large-scale wildlife surveys: Raw data to support manuscript - Hodgson et al

We conducted trial ScanEagle drone surveys of dugongs in Shark Bay, Western Australia, covering the full extent of the drone’s range (~ 100 km), concurrently with observer surveys, with drone flying above or just behind the piloted aircraft. We aimed to test the assumption that drone imagery could provide comparable detection rates of dugongs to human observers when influenced by same environmental conditions. Data in "All data for analysis - Shark Bay Hodgson et al" include a summary of the sightings from both platforms per transect segment, including associated environmental covariates. Also included are details of each dugong group sighted by each platform. "Comparison between reviewers - Shark Bay Hodgson et al" contains details of the drone image sightings recorded for a subset of drone images that were reviewed by three reviewers. These data were used to compare the reviewers and calculate perception bias for the manual review of the drone images. "Perception bias data - Shark Bay Hodgson et al" contains the data used to calculate the perception bias for the observers onboard the piloted aircraft.