Figure 4. Correlation between maximum thermal tolerance range (°C) and log-transformed latitudinal range (A), and log-transformed longitudinal range (B).

The correlation coefficient (R²) is shown for each case. Symbols represent individual species' as follows: Dictyota cf. caribaea (car), Dictyota ciliolata (cil), Dictyota crenulata#1 (cre1), Dictyota crenulata#2 (cre2), Dictyota crenulata#3 (cre3), Dictyota crenulata#4 (cre4), Dictyota cymatophila (cym), Dictyota implexa (imp), Dictyota mertensii (mer), Dictyota sandvicensis (san).