TABLE 4.

OTU contribution to the dissimilarity in cecal microbial communities associated with diet^a

OTU	Avg abundance		i	i/SD(δi)	Individual contribution (%)	Cumulative contribution (%)
	BE diet	B diet
70*	1.51	0.04	2.64	2.56	4.03	4.03
96*	1.15	2.36	2.43	1.52	3.70	7.73
224*	1.24	0.42	1.88	1.32	2.86	10.59
212*	0.58	1.08	1.71	1.17	2.61	13.20
286*	1.47	0.69	1.68	1.28	2.56	15.76
548*	0.46	1.13	1.62	1.30	2.47	18.23
222*	0.76	1.02	1.56	1.27	2.38	20.61
188*	1.21	0.61	1.54	1.26	2.35	22.96
496*	0.79	0.60	1.49	1.16	2.26	25.22
94*	0.31	0.79	1.43	1.03	2.18	27.40
214*	0.74	1.18	1.37	1.19	2.09	29.49
198*	0.80	0.51	1.34	1.14	2.05	31.54
92	0.12	0.72	1.33	0.97	2.03	33.56
522*	0.05	0.72	1.27	1.07	1.94	35.50
158*	0.20	0.78	1.27	1.34	1.93	37.43
146*	0.76	0.26	1.22	1.20	1.86	39.29
580*	0.55	0.64	1.19	1.10	1.82	41.10
300*	0.52	0.50	1.17	1.02	1.78	42.88
590*	0.58	0.46	1.15	1.02	1.75	44.63
318*	0.97	0.60	1.11	1.09	1.69	46.32
530*	0.59	0.35	1.09	1.05	1.65	47.97
290*	0.60	0.29	1.08	1.02	1.65	49.62

^aAverage abundances of important OTUs in cecal microbial communities of birds fed either a barley (B) diet or barley-plus-enzyme (BE) diet are shown. OTUs are listed in order of their contribution (_i) to the average dissimilarity δ (= 65.64%) between diets. The percent contribution of individual OTUs and the cumulative percent contribution to the top 50% of average dissimilarities are shown. OTUs identified as being good discriminators between diets are marked with an asterisk.