Multiresponse permutation procedure (MRPP) analysis of group dissimilarities, showing mean parasite dissimilarity between hosts and mean host dissimilarity between parasites in each compartment of the largest connected component of the tree-parasitic fungi network.

The chance-corrected agreement index (A) reflects within-group homogeneity and has a maximum value of 1 when there is no dissimilarity between the elements of any group. The p-value is the probability of obtaining, by chance, a value of A at least as high as the observed value.