Table 4.

Linear mixed models for analyses of the relationships between the ratio of reproductive to vegetation mass (RM/VM) of Artemisia species occuring in at least three sites and environmental gradients

Species name		Climate				Soil
		Estimate	SE	t-value	p	Estimate	SE	t-value	P
A.sacrorum	Intercept	0.07	0.05	1.45	0.28	0.16	0.11	1.53	0.27
	PC1	0.03	0.02	1.34	0.31	0.00	0.05	0.08	0.94
	PC2	0.04	0.03	1.39	0.30	-0.03	0.08	-0.31	0.79
A.ordosica	Intercept	0.23	0.09	2.66	0.06	0.12	0.12	0.98	0.38
	PC1	-0.05	0.03	-1.49	0.21	-0.03	0.04	-0.67	0.54
	PC2	-0.04	0.02	-1.81	0.14	-0.10	0.10	-0.95	0.40
A.scoparia	Intercept	0.52	0.04	4.13	< 0.001	0.45	0.05	9.34	< 0.001
	PC1	-0.02	0.01	-1.32	0.21	0.03	0.02	1.30	0.21
	PC2	0.07	0.02	4.52	< 0.001	0.07	0.04	1.92	0.07
A.edgeworthii	Intercept	2.91	28.02	0.10	0.92	4.22	5.06	0.83	0.43
	PC1	-4.81	37.31	-0.13	0.90	-1.09	1.93	-0.56	0.59
	PC2	2.93	35.63	0.08	0.94	-0.63	2.47	-0.26	0.80
A.sieversiana	Intercept	0.40	0.14	2.88	0.02	0.42	0.07	5.68	< 0.001
	PC1	0.03	0.05	0.74	0.48	0.09	0.05	1.79	0.08
	PC2	0.01	0.05	0.24	0.82	0.06	0.06	0.94	0.35
A.capillaris	Intercept	0.40	0.04	9.64	< 0.001	0.39	0.04	9.57	< 0.001
	PC1	0.01	0.02	0.46	0.66	0.01	0.04	0.36	0.73
	PC2	0.04	0.03	1.45	0.19	0.07	0.05	1.38	0.21
A.annua	Intercept	0.29	0.09	3.12	0.05	0.32	0.10	3.18	0.05
	PC1	-0.02	0.02	-0.93	0.42	-0.04	0.05	-0.87	0.45
	PC2	0.02	0.33	0.07	0.95	0.04	0.21	0.17	0.87
A.frigida	Intercept	0.24	0.38	0.64	1.00	0.05	0.22	0.25	0.81
	PC1	0.06	0.19	0.33	1.00	0.15	0.16	0.95	0.36
	PC2	0.20	0.26	0.77	1.00	0.25	0.15	1.60	0.14
A.lavandulaefoliada	Intercept	0.20	0.03	6.01	< 0.001	0.17	0.04	3.85	< 0.001
	PC1	0.01	0.01	1.14	0.28	0.00	0.02	0.04	0.97
	PC2	0.01	0.01	1.17	0.27	0.01	0.02	0.60	0.56
A.giraldii	Intercept	0.53	0.19	2.86	0.02	0.21	1.12	0.19	0.85
	PC1	0.11	0.07	1.50	0.17	-0.06	2.10	-0.03	0.98
	PC2	0.19	0.08	2.38	0.04	0.18	2.45	0.07	0.94

The bold values mean the effects of environmental gradients are significant