Fig. 4

Boxplot of habitat elevation in different provinces. SH Shanghai, JS Jiangsu, ZJ Zhejiang, AH Anhui, FJ Fujian, JX Jiangxi, HB Hubei, HN Hunan, GD Guangdong, GX Guangxi, SC Sichuan, YN Yunnan. The boxplot whiskers represent the 2.5 and 97.5%. The blue belts indicated four clusters as described in text