Fig. 6

Effect of user-defined movement speeds on GPE3 track reconstructions. a–e Maps showing movements for a single, long-distance tag reconstructed using user-defined movement speeds between 1 and 3 m s⁻¹. f Abacus plot of Mediterranean Sea occupation and movement speed for eight physically recovered tags that were placed within the Mediterranean Sea at the base run of 2.5 m s⁻¹. Vertical dotted line denotes the speed at which all tags were placed in the Mediterranean Sea. For 0.5 m s⁻¹, five model runs failed and these are shown as crosses