Table 1. Variable importance and parameter estimates for the statistical models.
Relative Variable Importance using AICc (RVI), model-averaged standardized parameter estimates (MA standarized estimate), and their standard errors (MA standarized SE), the model-averaged parameter estimate (MA estimate) and their standard errors (MA SE) for explanatory variables used in each of the statistical models. Coefficient of variation in elevation (CV elevation), Average slope across facility extent (Slope), Nameplate capacity of turbines (Turbine size), nearest-neighbor distance (NN distance), density of new roads (New roads), proportion of developed land pre-construction (Pre-development), road density pre- construction (Pre-roads).
| Model and variables | RVI | MA standardized estimate | MA standardized SE | MA estimate | MA SE |
|---|---|---|---|---|---|
| Change in the proportion of undeveloped land | |||||
| Pre-development | 1 | −0.4615 | 0.05154 | −1.2299 | 0.1374 |
| Turbine Size | 0.5239 | 0.0435 | 0.0493 | 0.113 | 0.0486 |
| New Roads | 0.4629 | 0.038 | 0.0483 | 0.0344 | 0.0158 |
| Pre-roads | 0.3851 | −0.0267 | 0.0404 | −0.0081 | 0.0042 |
| Slope | 0.1464 | 0.0075 | 0.0229 | 0.0122 | 0.0088 |
| CV elevation | 0.1063 | −0.0041 | 0.0178 | −0.0033 | 0.0034 |
| No. of Turbines | 0.0680 | 0.0008 | 0.0105 | 0.0003 | 0.0011 |
| NN Distance | 0.0521 | 0.0017 | 0.0136 | 0.0003 | 0.0004 |
| Change CAI at 50 m | |||||
| Pre-development | 1 | −2.1373 | 0.2380 | −5.6963 | 0.6344 |
| New Roads | 0.9988 | 1.0814 | 0.2354 | 0.4534 | 0.0973 |
| Pre-roads | 0.7155 | −0.3693 | 0.2870 | −0.0602 | 0.0232 |
| No. of Turbines | 0.0833 | 0.0329 | 0.1296 | 0.0115 | 0.0071 |
| Slope | 0.0709 | −0.0261 | 0.1141 | −0.0881 | 0.0573 |
| Turbine size | 0.0233 | −0.0033 | 0.0395 | −0.1916 | 0.2944 |
| CV elevation | 0.0222 | −0.0028 | 0.0378 | −0.0108 | 0.0186 |
| NN Distance | 0.0182 | 0.0005 | 0.0351 | 0.0002 | 0.0023 |
| Change in Connectance Index | |||||
| Pre-development | 0.9999 | −0.9794 | 0.2064 | −2.6107 | 0.5495 |
| New Roads | 0.8925 | 0.4798 | 0.2271 | 0.2251 | 0.0685 |
| Slope | 0.6524 | −0.2908 | 0.2433 | −0.1067 | 0.0352 |
| NN Distance | 0.2004 | 0.0827 | 0.1821 | 0.0037 | 0.0015 |
| No. of Turbines | 0.09 | 0.0275 | 0.0996 | 0.0089 | 0.0047 |
| Pre-roads | 0.0557 | −0.0113 | 0.0568 | −0.0236 | 0.0163 |
| Turbine Size | 0.0351 | 0.007 | 0.0464 | 0.2676 | 0.2061 |
| CV elevation | 0.0185 | 0.0004 | 0.0246 | 0.0002 | 0.0152 |
| New Road Density | |||||
| Pre-development | 0.7021 | −0.580 | 0.5048 | −2.2028 | 1.0644 |
| No. of Turbines | 0.5819 | 0.5658 | 0.5692 | 0.0283 | 0.0117 |
| CV elevation | 0.3576 | 0.1823 | 0.3335 | 0.0431 | 0.032 |
| NN Distance | 0.3134 | −0.2861 | 0.4808 | −0.0081 | 0.0036 |
| Slope | 0.1542 | 0.0091 | 0.1758 | 0.0141 | 0.1063 |
| Pre-roads | 0.15 | −0.019 | 0.1528 | −0.0148 | 0.044 |
| Turbine Size | 0.1130 | 0.0291 | 0.1462 | 0.3471 | 0.4878 |