Fig 6. Network of pairs of microbes (phyla) where the co-occurence is less compared to random pairing.

The Actinobacteria—Proteobacteria link is only detected by the entropy shift (ESABO score ≤ − 1), the five-phyla chain is only detected by the co-occurence analysis. The first three links have high z-score values for both methods. As these links are to be interpreted as competition between the species, each subgraph describes a network of mutually suppressing microbes.