Fig. 3.

Ordination of the gut microbial communities of the analysed bats. a Samples coloured by host species. b Samples coloured by taxonomic families. c Samples coloured according to the dietary groups set before the machine learning classification. Grey dots represent Myotis capaccinii individuals from colonies in which no piscivory has been reported. These samples were excluded from the machine learning model training process. d Samples coloured according to the dietary groups predicted by the machine learning classification. The green dot is the only M. capaccinii that was classified as an arthropodophage. The bat species abbreviations are Ebo = Eptesicus bottae, Har = Hypsugo ariel, Msc = Miniopterus schreibersii, Mca = Myotis capaccinii, Mda = M. daubentonii, Mem = M. emarginatus, Mmy = M. myotis, Mpi = M. pilosus, Mvi = M. vivesi, Nle = Noctilio leporinus, Pku = Pipistrellus kuhlii, Rbl = Rhinolophus blasii, Reu = R. euryale, Rhi = R. hipposideros, Rfe = R. ferrumequinum