Predictors and variance parameter for the selected area level models.

For each MU, Elev_P75_m is the mean of the 75th percentile of the elevation of LiDAR returns for the pixels within the MU; Slope_m and Slope_s are the mean and variance of DTM-derived slopes; all_1st_co_2m_m and Elev_ave_sq_m are the average of the pixel level percentage of first returns above 2m and the pixel level values of the square of the mean elevation of LiDAR returns; Elev_P01_v Elev_P80_v and Elev_P99_v, are the variance of the pixel level values of the 1st, 80th and 99th percentile of the LiDAR elevations; Elev_CV_v and Elev_max_v are the variance of the pixels interquartile range, coefficient of variation and maximum of LiDAR elevation heights; 1st_co_ab_2m_v is the variance of the pixel level values of the percentage of first returns above 2m; Slope_s and Slope r are the standard deviation and range of the pixel level slope; A_P10, A_P20, A_P30 and A_P60_are approximate percentiles of the LiDAR return height distribution within the MU. See S1 Appendix for the details on the computation of the LiDAR predictors.