Fig. 4

Pseudo-absence tracks (colors) and observed track (black). A–D Presence and pseudo-absence for track 160401201. E–H Presence and pseudo-absence for track 160700501. Tracks are overlaid on top of SST field for tag deployment day (November 15th 2004 for A–D, July 25th 2007 for E-H). Triangle pointing down marks track beginning (either true beginning or beginning of month), triangle pointing up marks track end (either true end or end of month), and dates are the dates corresponding to the beginning of tracks (either true beginning or beginning of month). A, E Brownian motion track in red, B, F Lévy flight in blue, C,G Correlated Random Walk in purple, D, H Joint Correlated Random Walk in green