Table S3. Results of generalized linear mixed models set up to predict genetic divergence between populations of R. capensis with geographic and environmental predictor variables, as described in Table 3 of the main paper. The present versions of the models include GEO x ENV interaction terms (in grey shades). Inclusion of these interaction terms does not change the conclusion that ENV (bold italics) is the dominant driver of variation in the data. (1) plastid DNA: DIC deltaDIC DICweight null 207.5903759 42.12401218 2.49443E-10 geo 206.9991434 41.53277967 3.35239E-10 env 165.4663637 0 0.350012609 phy 199.8206117 34.35424804 1.21382E-08 geo_env 166.7356253 1.269261631 0.185552593 geo_env_interaction 167.8199221 2.353558383 0.107898394 geo_phy 201.7626472 36.29628346 4.5967E-09 env_phy 167.1577161 1.691352436 0.150248856 geo_env_phy 168.5839213 3.117557607 0.073640149 geo_env_phy_interaction 167.4069134 1.940549684 0.132647381 (2) RAD-seq / neutral: DIC deltaDIC DICweight null -223.7038565 28.82397037 1.76871E-07 geo -220.7178949 31.80993198 3.97432E-08 env -252.5278269 0 0.321145164 phy -236.5332321 15.99459481 0.000108024 geo_env -251.5842885 0.943538422 0.20036166 geo_env_interaction -249.6495319 2.87829493 0.0761531 geo_phy -240.4045074 12.12331949 0.000748438 env_phy -250.6402363 1.887590548 0.124973032 geo_env_phy -251.80524 0.722586853 0.223765767 geo_env_phy_interaction -248.9149631 3.612863772 0.052744598 (3) RAD-seq / outliers: DIC deltaDIC DICweight null -33.70297345 44.10413947 1.55412E-10 geo -34.58436286 43.22275005 2.41478E-10 env -77.80711292 0 0.586918868 phy -52.52181024 25.28530267 1.89646E-06 geo_env -75.45395123 2.353161687 0.180965382 geo_env_interaction -70.5628179 7.244295014 0.015685537 geo_phy -53.18264362 24.62446929 2.63902E-06 env_phy -75.6396043 2.167508619 0.198568134 geo_env_phy -70.42308359 7.384029322 0.014627041 geo_env_phy_interaction -67.4026145 10.40449841 0.003230502