Table 3.

Summary of the comparison between 1) OP vs. MED and 2) using the raw compositional table or a compositional table filtered by applying the BSM procedure.

Type of data	Rawa bundance		BSM
Method	OP	MED	OP	MED
Table name in the tutorials	TOP0	TM0	TOP_BSM	TM_BSM
Total number of OTs	17	21	3	3
Number of singleton OTs (%)	8 (47%)	3 (14%)	0 (0%)	0 (0%)
Total variance	974.2	543.0	953.3 (97.9%)$	472.1 (86.9%)$
RV Coefficient	rv: 0.9848*		rv: 0.9824*
Mantel test: Bray-Curtis, Euclidean index	r: 0.994*, r: 0.981*		r: 0.987*, r: 0.975*
Correlation of CA ordination plots (Procrustes rotation)	r: 0.787*		r: 0.879*
Number of OTs highly correlated (>0.8) to OTs produced with the other approach (% of the total number of OTs) (see Table 1)	11 (64.7%)	12 (57.1%)	2 (66.7%)	3 (100%)

^*P < 0.01.

^$percentage referring to the variance in the corresponding raw abundance table.