Table 2.

Comparison of two distance matrices by Mantel tests

r statistic
Similarity index usedTaxonomy bins- (at 80%) based distance matrixTaxonomy bins- (at 50%) based distance matrixTaxonomy bins- (at 0%) based distance matrix
97% OTU-based distance matrixChao's adjusted
Sørensen0.779***0.803***0.817***
Jaccard0.863***0.860***0.787***
UniFrac distance matrixChao's adjusted
Sørensen0.737***0.732***0.737***
Jaccard0.866***0.873***0.873***
  • The Mantel statistic was based on Spearman's rank correlation. The correlation r reflects the relationship between two matrices. ***P < 0.001.

  • The permutations (n = 999) assessed for the significance.