Table 3.
Linear mixed models for analyses of the relationships between plant size 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 | 1.31 | 0.14 | 9.13 | 0.01 | 1.54 | 0.20 | 7.68 | 0.02 |
PC1 | 0.07 | 0.06 | 1.16 | 0.37 | 0.01 | 0.10 | 0.13 | 0.91 | |
PC2 | -0.04 | 0.09 | 0.46 | 0.69 | -0.21 | 0.16 | -1.36 | 0.31 | |
A.ordosica | Intercept | 1.43 | 0.45 | 3.20 | 0.03 | 1.13 | 0.49 | 2.29 | 0.08 |
PC1 | -0.01 | 0.16 | -0.04 | 0.97 | 0.15 | 0.18 | 0.86 | 0.44 | |
PC2 | 0.05 | 0.11 | 0.41 | 0.70 | 0.17 | 0.43 | 0.39 | 0.72 | |
A.scoparia | Intercept | 0.80 | 0.06 | 12.28 | < 0.001 | 0.81 | 0.07 | 12.14 | < 0.001 |
PC1 | -0.05 | 0.02 | -2.03 | 0.06 | -0.03 | 0.03 | -0.87 | 0.40 | |
PC2 | -0.06 | 0.03 | -2.26 | 0.04 | -0.10 | 0.05 | -1.93 | 0.07 | |
A.edgeworthii | Intercept | -2.62 | 6.48 | -0.40 | 0.70 | 1.07 | 0.79 | 1.35 | 0.21 |
PC1 | -3.21 | 8.63 | -0.37 | 0.72 | -0.17 | 0.30 | -0.57 | 0.58 | |
PC2 | 3.35 | 8.24 | 0.41 | 0.69 | -0.39 | 0.39 | -1.00 | 0.34 | |
A.sieversiana | Intercept | 1.08 | 0.09 | 11.88 | < 0.001 | 1.05 | 0.06 | 17.01 | < 0.001 |
PC1 | -0.08 | 0.03 | -2.55 | 0.03 | -0.11 | 0.04 | -2.60 | 0.03 | |
PC2 | -0.05 | 0.03 | -1.36 | 0.21 | -0.15 | 0.05 | -2.85 | 0.02 | |
A.capillaris | Intercept | 0.87 | 0.08 | 10.95 | < 0.001 | 0.91 | 0.08 | 10.84 | < 0.001 |
PC1 | -0.10 | 0.03 | -3.19 | 0.02 | -0.21 | 0.08 | -2.76 | 0.03 | |
PC2 | -0.08 | 0.05 | -1.38 | 0.21 | -0.10 | 0.11 | -0.94 | 0.38 | |
A.annua | Intercept | 0.97 | 0.18 | 5.46 | 0.01 | 0.87 | 0.18 | 4.89 | 0.02 |
PC1 | 0.02 | 0.04 | 0.48 | 0.66 | 0.07 | 0.09 | 0.81 | 0.48 | |
PC2 | 0.24 | 0.63 | 0.39 | 0.72 | -0.26 | 0.37 | -0.71 | 0.53 | |
A.frigida | Intercept | -2.08 | 0.61 | -3.38 | 0.01 | 0.16 | 0.38 | 0.41 | 0.69 |
PC1 | 1.35 | 0.31 | 4.28 | < 0.001 | -0.02 | 0.28 | -0.07 | 0.95 | |
PC2 | 2.18 | 0.41 | 5.26 | 0.00 | 1.46 | 0.27 | 5.46 | < 0.001 | |
A.lavandulaefoliada | Intercept | 0.94 | 0.09 | 9.97 | < 0.001 | 0.91 | 0.13 | 7.25 | < 0.001 |
PC1 | -0.03 | 0.02 | -1.57 | 0.15 | -0.06 | 0.04 | -1.41 | 0.19 | |
PC2 | -0.06 | 0.04 | -1.70 | 0.12 | -0.02 | 0.05 | -0.39 | 0.71 | |
A.giraldii | Intercept | 1.69 | 0.39 | 4.37 | 0.00 | 1.64 | 1.28 | 1.28 | 0.23 |
PC1 | 0.30 | 0.15 | 2.06 | 0.07 | 1.40 | 2.41 | 0.58 | 0.58 | |
PC2 | 0.30 | 0.16 | 1.85 | 0.10 | 1.67 | 2.82 | 0.59 | 0.57 |
The bold values mean the effects of environmental gradients are significant