Fig. 1

Taxonomic analysis of WW-grown stream biofilms. A Cladogram of the top 200 prokaryotic taxa based on relative abundance and shaded by significant differences in abundances between treatment groups. Node size corresponds to overall taxon abundance while node color indicates significant enrichment in a given experimental condition according to LefSE analysis. Branches are colored by phylum. B Barplot of relative taxonomic abundances of the significantly different phyla across treatments