Fig. 6

Relationship between the kinematics of larval locomotion and habitat temperature of the Drosophila species. A A world map of minimum habitat temperature. B–D Scatter plot of the bend probability of the 11 species at 24 °C against the average (B), maximum (C), and minimum (D) habitat temperatures. E–G Scatter plot of the crawling speed of the 11 species at 24 °C against the average (E), maximum (F), and minimum (G) habitat temperatures. In B–G, the median ± sem was shown, and the source locomotion data are the same as in Fig. 3C, D. 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 − 0.73 and [− 0.93, − 0.23] in B, 0.37 and [− 0.30, 0.79] in C, and − 0.81 and [− 0.95, − 0.41] in D, 0.66 and [0.09, 0.90] in E, − 0.31 and [− 0.77, 0.36] in F, and 0.74 and [0.25, 0.93] in G. H Left: a scatter plot of intraspecific comparison (the same as Fig. 4); right: a map of Japan representing the minimum habitat temperatures of the six strains shown in the left panel