Cane toad dispersal rate

Dispersal data of cane toads radio-tracked in Australia. Toads are grouped in four categories; core (Northern QLD) toads tracked in 1992-1993 and front (NT) toads tracked in 2006, while resident and translocated (Northern NSW) toads were tracked in 2015-2016. Toads in the resident and translocated categories are additionally grouped by transport stress treatment (low or high), collection site and release site. Three dispersal-relevant parameters are calculated for each toad: (1) mean distance per move (cumulative distances travelled divided by the number of times a toad changed diurnal shelter site); (2) mean displacement per day (total linear distance between the release point and final position divided by the number of days; such that a toad that returned to its initial release point by the end of the five-day period would receive a score of zero); and (3) daily rate of changes in shelter-sites (the number of shelter sites divided by number of observations).