Fig.1

Bacterial alpha- and beta-diversity at 97%-identity OTU resolution across Nacella spp. microenvironments. Colors are assigned to the microenvironment. Triangles and circles refer to N. concinna and N. deaurata, respectively. Squares represent interspecies pairwise dissimilarity of beta-diversity. Chao1 (a) and phylogenetic diversity (b) comparisons across microenvironments, independent of Nacella species. c Non-metric multidimensional scaling (NMDS) profiling revealing the bacterial community composition variations among Nacella microenvironments and species. d Comparisons of bacterial community dissimilarities among microenvironments. The effect of the microenvironment factor on sample grouping in the ordination and tested by PERMANOVA, as well as the p-values associated with the Wilcoxon test pairwise comparisons among microenvironments, are provided