Canopy transformation from Evidence for human-mediated range expansion and gene flow in an invasive grass ArredondoTina M. MarchiniGina L. CruzanMitchell B. 2018 Figure S2. Transformation applied to canopy cover layer. Original data values for the canopy layer represented percent of canopy cover in 30-meter grid cells. Transformed values were found by ResistanceGA to optimize the relationship between genetic distance and commute distance between populations.