Figure 2. Flight thermoregulatory behaviour of Scarabaeus sacer.

(A) Individual variation of T_thorax (in red) and T_abdomen (in blue). Environmental temperature (T_ambient) (in green) was maintained during each experiment. (B) Comparison of slopes of T_thorax, T_abdomen and T_ambient variation during flight (N = 27; Kruskal-Wallis test with the Conover-Inman post hoc test for pairwise comparisons, α<0.05); black dots indicate the median values; temperatures with the same letter did not differ significantly from each other. (C) Thermal image of S. sacer during flight showing the strong contrast between T_thorax and T_abdomen.