Figure 3. Thermal performance curves estimated from the non-linear
models applied to the raw maximum locomotory speed data for P.
latiscutatus and E. quadrivirgata . Curves in panel A are based
on racetrack sprint speeds of P. latiscutatus individuals from
Hachijo-Kojima (blue solid line), where E. quadrivirgata is
absent, and Kozu (orange solid line), where it is present. Panel B shows
the curves based on P. latiscutatus open field sprint speeds on
Kozu (solid grey line) and E. quadrivirgata maximum crawling
speeds on Niijima and Kozu (black dotted line). The plotted points
represent individual speed measurements for Hachijo-Kojima (blue) and
Kozu (orange) P. latiscutatus in panel A, as well as for E.
quadrivirgata (black) and open field P. latiscutatus (grey) in
panel B. The vertical bands in both panels represent foraging body
temperatures for P. latiscutatus measured on Hachijo-Kojima
(blue) and Kozu (orange) islands, where the middle line is the mean, and
the shaded range the standard error. The descending portion of theP. latiscutatus open field sprint speed curve (solid grey line)
in panel B was removed for visual clarity.