Figure 4

Taxonomic differences between sample types as predicted by PhyloSift. Lineages that are overrepresented in the old and middle groups are shown in orange, while those more prevalent in the young group are shown in green. Branches which have no difference in abundance between groups were pruned from the tree. Taxon branches are collapsed to family level where the significant overrepresentation is not to a specific species. Numbers within brackets are the count of taxa within that family.