Fig. 4

Boxplot of functional diversity of the gut bacterial microbiota (OTUs) of C. convexus females and males from rural and urban habitats expressed by the Rao’s quadratic entropy using the traits related to functional roles and respiratory types of the OTUs. In boxplots horizontal lines represent median values, boxes show the interquartile ranges, whiskers represent the minimum and maximum values, while points outside the whiskers are outliers.