Fig. 3.

Alpha and beta diversity for the faecal samples. A scatter plot of the diversities; red whiskers designate the median and interquartile ranges. a Alpha diversity as Simpson’s reciprocal index. The Simpson reciprocal index describes how many OTUs prevail in each sample [36]. b The observed species index describes the sample richness, i.e. how many OTUs are detected in each sample. c The beta diversity as Bray-Curtis Distance describes the between-sample diversity from 0 to 1