Table 1. ANCOVA results for the effects of vegetation type (site) and cover of Larrea and Bouteloua on the population and community stability of subdominants.

Factors	Estimates						Whole model
	Term	d.f.	Estimate	SE	t -ratio	P	r2	P
Population stability	Intercept		0.454	0.009	50.29	<0.001	0.06	0.012
	site	1	−0.006	0.004	−1.4	0.163
	cover	1	−0.0004	0.0002	−1.83	0.068
	site x cover	1	0.001	0.0002	3.03	0.002
Cover stability	Intercept		1.283	0.061	21.1	<0.001	0.10	<0.001
	site	1	0.059	0.028	2.05	0.041
	cover	1	−0.006	0.001	−3.49	<0.001
	site x cover	1	0.001	0.001	0.85	0.394
Compositional stability (log)	Intercept		0.04	0.095	0.42	0.672	0.14	<0.001
	site	1	−0.001	0.045	−0.02	0.986
	cover	1	−0.001	0.002	−0.53	0.594
	site x cover	1	−0.01	0.002	−3.7	<0.001
Turnover	Intercept		0.63	0.013	46.05	<0.001	0.32	<0.001
	site	1	−0.056	0.006	−8.76	<0.001
	cover	1	−0.0002	0.0003	−0.53	0.593
	site x cover	1	0.001	0.0003	2.74	0.006
Colonization	Intercept		0.331	0.01	36.72	<0.001	0.27	0.004
	site	1	−0.032	0.004	−7.66	<0.001
	cover	1	−0.0001	0.0002	−0.71	0.48
	site x cover	1	0.0007	0.0002	2.85	0.004
Extinction	Intercept		0.297	0.007	40.62	<0.001	0.25	<0.001
	site	1	−0.027	0.003	−7.87	<0.001
	cover	1	−0.0001	0.0002	−0.34	0.735
	site x cover	1	0.0002	0.0002	1.4	0.163

Compositional stability was logarithmically (log) transformed.