Fig. 5

Dead-reckoned lion track in relation to GPS positions [a uncorrected and b corrected—approx. every 30 min (black circles)]. The start of the track (lo and la) is denoted with a black x. Three corresponding sections of each track are denoted with the same number and the finishing positions denoted with a circle (coloured according to its reference track). Note that the horizontal straight-line sections (cf. yellow arrow) result from the lion following the Botswana boundary fence (which this individual eventually crossed). Mean net error between (corrected) dead-reckoned positions and all available GPS fixes was higher for tracks resolved using a VeDBA threshold (0.11 g), than for tracks advanced only at times of depicted movement using the MVF method