a. 9 m2 grain
Variable Estimate Estimate p-value p-value
Intercept Intercept 4.221 4.221 <0.001
Presence of A. selago Presence of A. selago 0.315 0.315 0.032
Distance to nearest drainage Distance to nearest drainage -0.001 -0.001 0.005
Elevation Elevation -0.004 -0.004 <0.001
Hillshade Hillshade -0.006 -0.006 0.036
Northness Northness 0.345 0.345 <0.001
Slope Slope 0.020 0.020 0.002
b. 1 m2 grain
Variable Estimate Estimate p-value p-value
Intercept Intercept 2.553 2.553 <0.001
Elevation Elevation -0.004 -0.004 <0.001
Hillshade Hillshade -0.005 -0.005 0.021
Northness Northness 0.013 0.013 0.899
Slope Slope 0.020 0.020 <0.001
Topographical wetness index Topographical wetness index 0.092 0.092 <0.001
Elevation*Northness Elevation*Northness 0.001 0.001 0.037
c. Difference in species richness between grains (native Δ9-1) c. Difference in species richness between grains (native Δ9-1) c. Difference in species richness between grains (native Δ9-1) c. Difference in species richness between grains (native Δ9-1) c. Difference in species richness between grains (native Δ9-1)
Variable Estimate Estimate p-value p-value
Intercept Intercept 1.273 1.273 <0.001
Distance to nearest drainage Distance to nearest drainage -0.001 -0.001 0.069
Elevation Elevation -0.001 -0.001 0.080
Northness Northness 0.140 0.140 0.016
Topographical wetness index Topographical wetness index -0.042 -0.042 0.041