Standardized slopes, standard error, and 95% CI for effects of the four environmental predictors (dots and thick/thin bars) from multiple linear regressions and GAMs that accounted for spatial autocorrelation with a spline-based trend surface term of geographical coordinates. Note that predictors were z-scaled for comparison and range size values (km2) were square root-transformed for normality. Detailed model estimates shown in (D) are provided inTables 1andS2. For the effects of interactions between environmental drivers and the proportion of burrowing species on range size seeTable S3.
