Fig 7. Linear discriminate analysis effect size (LEfSe) results showing bacterial lineages that differed significantly in a population before and after supplemental feeding with concentrated alfalfa pellets.

Each node in the tree represents a taxon from phylum level through genus level (tips). Nodes are colored red if they were enriched under the natural diet regime, and green if they were enriched under the pelleted feed regime. Yellow nodes did not differ significantly across regimes. Branches are highlighted red if they belong to phyla that were enriched under the natural diet regime, and green if they belong to phyla that were enriched in pellet-fed elk.