Ordination of samples based on weighted and unweighted phylogenetic dissimilarity in community composition. (A,
B) depict principal coordinate (PCoA) plots for all samples in the study based on pairwise weighted UniFrac distance between samples, with sample points colored by surface and person, respectively. (C, D) are similarly colored by surface and person but are based on unweighted UniFrac distance. (E, F) depict UPGMA clustering of pooled and evenly rarified sample groupings based on weighted and unweighted UniFrac distance, respectively. Branches are highlighted to reflect person of origin (colors as in B and D) and group names at branch tips are colored by surface as in A and C.