Table 3 Results of Random Forest regression and LEfSe to identify OTUs that distinguish the three response groups

Low vs. enhanced

None identified

[OTU 7] _{during RS}

High vs. low

[OTU 4] _{before and during RS}

[OTU 4] _{before and during RS}

[OTU 3] _{before RS} ^‡

High vs. enhanced

[OTU 4] _{before and during RS}

[OTU 4] _{before and during RS}