Fig. 8

Crawling speed of larval locomotion in the 11 Drosophila species at 32 °C. A Crawling speed of the 11 species at 24 °C and 32 °C. The data at 24 °C were the same as in Fig. 3D. Sample numbers at 32 °C were as follows: Dvir: n = 25; Dmel: n = 20; Dmoj: n = 29; Dper: n = 27; Dpse: n = 25; Dsec: n = 20; Dwil: n = 21; Dere: n = 24; Dmau: n = 17; Dana: n = 23; and Dyak: n = 19. p values presented the results of the Mann-Whitney U test. B Scatter plot of the crawling speed at 32 °C against the minimum habitat temperature Tmin. C Scatter plot of the difference of the crawling speed between at 32 and at 24 °C (crawling speed at 32 °C − crawling speed at 24 °C) against the minimum habitat temperature Tmin. In B and C, the median ± sem was shown. The red lines showed the linear regression functions, and the shaded areas represented the 95% confidence bands. The point estimates of the Pearson correlation and their 95% confidence intervals were 0.67 and [0.12, 0.91] in B and 0.07 and [− 0.56, 0.64] in C, respectively