Fig. 6

Co-occurrence network analysis based on correlation of the relative abundance of ASV reads for bacterial and archaeal profiles at genus or the closest classified taxonomic level. Bacterial and archaeal groups are shown by nodes in green and orange, respectively. Each edge represents significant correlations between a pair of nodes (p ≤ 0.001), where positive and negative correlations are colored in green and red, respectively. The thickness of the edge is proportional to the R value of the correlation (R ≥ 0.5)