Table 31. Taxa noted throughout our analysis.

Level	Taxon	Observation
Genus	Adlercruetzia	Role change from Control (Bacteroidetes cooperation) to ADHD (E. dolichum cooperation). Competition with different Firmicutes (in ADHD,).
Genus	Bacteroides	Centroid (with nearly 100% connectivity) of cluster BB in ADHD.
Genus	Bifidobacterium	Higher participation in Control (mostly competition). Competition with all Bacteroidetes or Proteobacteria taxa is entirely exclusive to Control, including multiple members and centroid of cluster BB. Cooperation (small amount) is entirely exclusive to ADHD.Ranked higher in Control than ADHD nearly 100% of the time, including a #1 ranking at the lowest taxonomic level.
Genus	Coprobacillus	DESeq2-elevated ADHD taxon, and ranked #1 for ADHD in two MCNs (genus and lowest possible). Competes with multiple Lachnospiraceae taxa, including the most abundant.
Family	Enterobacteriaceae	Involved with Firmicutes-Proteobacteria shifts. Only ranked in ADHD.
Species	F. prausnitzii	Probiotic species only ranked in Control
Family	Lachnospiraceae	Most abundant family, generally ranked higher in ADHD
Genus	Phascolarctobacterium	Only FT member connected to another Firmicute-dominant cluster (competition). Only ranked in ADHD.
Family	Porphyromonadaceae	#1 ADHD family, only cluster BB member to compete with FL/FR.
Family	Rikenellaceae	Previously reported as ADHD-elevated. Ranked by ATria as important in all six lower level MCNs, and always higher in ADHD.
Genus	Ruminococcus [L]	#1 Control genus, involved in FL-FR competition (only observed in Control).
Species	R. gnavus	Produces inflammatory biosaccharide, only ranked in ADHD
Family	Ruminococcaceae	Second-most abundant family, generally ranked higher in Control
Genus	Turicibacter	Reported as differentially abundant (Control) by three methods (LEfSe, DESeq and ALDEx2), core member (centroid in ADHD) of FT.

Summary of notable taxa throughout our ecological analyses, and observations.