Table 5. Effect of shrub coverage on relative abundances (%) of bacterial genera in ruminal samples of yaks grazing in alpine meadows¹⁾

Phylum	Family	Genus	Shrub coverage				SEM	p-value
Phylum	Family	Genus	Control	Low	Middle	High	SEM	p-value
Bacteroidetes	Prevotellaceae	Prevotellaceae UCG-001	2.09^a	1.99^a	1.54^ab	1.07^b	0.142	0.020
Firmicutes	Christensenellaceae	Christensenellaceae R-7 group	6.08^b	7.09^b	6.87^b	10.59^a	0.638	0.037
	Ruminococcaceae	Ruminococcaceae NK4A214 group	5.14^b	6.24^b	7.00^b	12.65^a	0.990	0.014
		Ruminococcus 1	0.64^b	0.63^b	1.07^a	1.18^a	0.087	0.021
		Ruminococcaceae UCG-002	0.35^b	0.24^b	0.39^b	0.75^a	0.073	0.043
		Ruminococcaceae UCG-005	0.80^b	0.84^b	1.74^b	4.12^a	0.439	0.006
	Erysipelotrichaceae	Erysipelotrichaceae UCG-004	1.09^ab	1.76^a	0.50^b	0.24^b	0.200	0.015
	Lachnospiraceae	Pseudobutyrivibrio	0.72^b	0.66^b	1.53^a	1.11^ab	0.121	0.019
		Lachnospiraceae XPB1014 group	0.67^ab	1.24^a	1.08^a	0.43^b	0.124	0.048
		Lachnospiraceae AC2044 group	0.50^ab	0.71^a	0.49^ab	0.25^b	0.061	0.041
		Lachnospiraceae NK4A136 group	0.24^b	0.26^ab	0.36^a	0.16^b	0.025	0.011
		Oribacterium	0.21^b	0.31^b	0.54^a	0.40^ab	0.041	0.013
		Lachnospiraceae UCG-008	0.09^b	0.07^b	0.12^b	0.26^a	0.027	0.047
		Lachnospiraceae FCS020 group	0.07^bc	0.14^a	0.12^ab	0.05^c	0.012	0.012
Synergistetes	Synergistaceae	Fretibacterium	0.49^a	0.22^bc	0.44^ab	0.10^c	0.057	0.020

Only bacterial genera (accounting for ≥ 0.1% in at least one of the samples) that were affected by shrub coverage are listed.
Values within a row with different superscripts differ significantly at p < 0.05.
SEM, standard error of the mean.