Fig. 4
From: Maternal gut microbes shape the early-life assembly of gut microbiota in passerine chicks via nests
Microbial compositions of the finch and environmental microbiota. The average relative abundances of the most prevalent bacterial (a) phyla (bar length) and (b) families (circle size) in each sample type (indicated as above bubble plot) plotted for samples from the three rearing groups and feed. The indicator value index (shading of circle color) represents the strength of association between a taxon and a given sample type, with larger values indicating greater specificity