Fig. 5

Similarity of the bacterial communities (family level) and abundance of core lineages in the different gut compartments of five lignocellulose-feeding cockroaches. Community similarity (Morisita-Horn index) between consecutive gut compartments of the same species (red) and between homologous gut compartments of different species (blue) is indicated by the width and the opacity of the connecting arcs. The relative abundance of core lineages (families represented in all homologous gut compartments) is indicated by the size of the concentric filling (black) of the circles, which represent the crop (C), midgut (M), and hindgut (H) compartments of Ergaula capucina (Ec), Byrsotria fumigata (Bf), Pycnoscelus surinamensis (Ps), Panesthia angustipennis (Pa), and Salganea esakii (Se). For numerical values, see Additional file 2: Table S3