Table 3. Analysis of similarity (ANOSIM) for bacterial community structures in ruminal samples of yaks grazed in alpine meadows.

Item	Control		Low		Middle
	R-value	p-value	R-value	p-value	R-value	p-value
Low	–0.250	0.934	-	-	-	-
Middle	0.073	0.330	–0.042	0.733	-	-
High	0.615	0.027	0.635	0.041	0.333	0.064

Control, group grazed in meadows lacking shrubs; Low, low shrub-coverage group; Middle, middle shrub-coverage group; High, high shrub-coverage group.