Marx et al.|American Journal of Botany 2019 { Appendix S8 Table Appendix S8: Phylogenetic α-diversity output statistics. Table summarizes: the number of taxa (N taxa), the observed phylogenetic diversity (obs), the mean phylogenetic diversity from the phylogeny shuffle randomization (rand mean), the standard deviation of phylogenetic diversity from the phylogeny shuffle randomization (rand sd), the rank of the observed metric compared to the metric calculated after the phylogeny shuffle randomization (obs rank), the z-score or standardized effect size (SES) of the observed metric compared to the phylogeny shuffle randomization (obs z) , the P-value (quantile) of observed metric compared to the phylogeny shuffle randomization (obs p = obs rank / runs; runs = 10,000), if the P-value was significant (sig), the phylogenetic diversity metric calculated (metric), the clade the metric was calculated for (clade), and the species pool considered (species pool; All Alpine = species collected above treeline, Talus = only species collected on the talus slopes, Meadow = only species collected in alpine meadows). summit N taxa obs rand mean rand sd obs rank obs z P-value sig metric clade species pool Summit N taxa obs rand mean rand sd obs.rank obs.z obs.p sig metric clade Species Pool 1 Braxon Peak 26 89.3779 136.5775 32.5507 630 -1.4500 0.0630 0 MNTD Tracheophyta All Alpine Castle Peak 53 114.5959 95.3984 16.9686 8580 1.1314 0.8579 0 MNTD Tracheophyta All Alpine D.O. Lee Peak 51 73.0399 97.5590 17.5086 863 -1.4004 0.0863 0 MNTD Tracheophyta All Alpine Horstmann Peak 35 112.1795 118.8406 25.2802 4149 -0.2635 0.4149 0 MNTD Tracheophyta All Alpine Hyndman Peak 72 63.0396 78.9784 11.8366 943 -1.3466 0.0943 0 MNTD Tracheophyta All Alpine Mount Cramer 37 110.2914 115.3402 23.9894 4368 -0.2105 0.4368 0 MNTD Tracheophyta All Alpine Salzburger Spitzl 63 105.7344 86.1402 13.8716 9149 1.4125 0.9148 0 MNTD Tracheophyta All Alpine Snowyside Peak 35 128.1712 118.8494 25.2884 6411 0.3686 0.6410 0 MNTD Tracheophyta All Alpine Thompson Peak 45 77.1166 104.0580 19.9201 921 -1.3525 0.0921 0 MNTD Tracheophyta All Alpine Braxon Peak 7 40.8640 49.6899 16.9383 3178 -0.5211 0.3178 0 MNTD Asterales All Alpine Castle Peak 17 22.1824 28.2572 6.7988 1948 -0.8935 0.1948 0 MNTD Asterales All Alpine D.O. Lee Peak 10 36.3680 39.9922 12.1452 3933 -0.2984 0.3933 0 MNTD Asterales All Alpine Horstmann Peak 7 55.0830 49.5895 17.1291 6313.5 0.3207 0.6313 0 MNTD Asterales All Alpine Hyndman Peak 19 22.9034 26.1052 5.9286 2972 -0.5401 0.2972 0 MNTD Asterales All Alpine Mount Cramer 10 25.7797 39.9039 12.1888 1304 -1.1588 0.1304 0 MNTD Asterales All Alpine Salzburger Spitzl 14 32.2669 32.1369 8.4271 5100 0.0154 0.5099 0 MNTD Asterales All Alpine Snowyside Peak 11 14.0646 37.7263 11.0318 115 -2.1449 0.0115 1 MNTD Asterales All Alpine Thompson Peak 9 30.5281 42.5440 13.4830 2003 -0.8912 0.2003 0 MNTD Asterales All Alpine Braxon Peak 5 71.7160 74.1883 20.5021 4980.5 -0.1206 0.4980 0 MNTD Caryophyllales All Alpine Castle Peak 5 74.3753 74.0911 20.3489 5424.5 0.0140 0.5424 0 MNTD Caryophyllales All Alpine D.O. Lee Peak 9 52.9309 50.2240 11.0123 5933 0.2458 0.5932 0 MNTD Caryophyllales All Alpine Horstmann Peak 4 38.2158 87.0519 24.9079 369.5 -1.9607 0.0369 1 MNTD Caryophyllales All Alpine Hyndman Peak 11 41.1182 43.9117 8.7269 3692 -0.3201 0.3692 0 MNTD Caryophyllales All Alpine Mount Cramer 4 106.1159 86.1643 25.0035 7677 0.7980 0.7676 0 MNTD Caryophyllales All Alpine Salzburger Spitzl 8 55.6063 54.2422 12.6123 5389 0.1082 0.5388 0 MNTD Caryophyllales All Alpine Snowyside Peak 4 76.6994 86.9738 24.8415 3445.5 -0.4136 0.3445 0 MNTD Caryophyllales All Alpine Thompson Peak 6 53.3127 65.3245 17.0438 2336 -0.7048 0.2336 0 MNTD Caryophyllales All Alpine Braxon Peak 5 92.0851 115.0876 35.1084 2681.5 -0.6552 0.2681 0 MNTD Poales All Alpine Castle Peak 7 74.1700 86.7589 22.3736 2779.5 -0.5627 0.2779 0 MNTD Poales All Alpine D.O. Lee Peak 7 102.0781 86.7149 22.2303 7467 0.6911 0.7466 0 MNTD Poales All Alpine Horstmann Peak 6 131.3819 98.8513 27.6845 8631.5 1.1750 0.8631 0 MNTD Poales All Alpine Hyndman Peak 12 56.4683 54.4196 8.5025 5769 0.2409 0.5768 0 MNTD Poales All Alpine Continued on next page Table Appendix S8 { continued from previous page summit N taxa obs rand mean rand sd obs rank obs z P-value metric sig clade species pool Mount Cramer 6 81.7166 99.1719 27.5571 2512.5 -0.6334 0.2512 0 MNTD Poales All Alpine Salzburger Spitzl 9 77.8023 69.6869 14.9941 6894 0.5412 0.6893 0 MNTD Poales All Alpine Snowyside Peak 5 110.7906 114.7125 35.2844 3906.5 -0.1112 0.3906 0 MNTD Poales All Alpine Thompson Peak 8 79.5126 77.4276 18.2364 5218.5 0.1143 0.5218 0 MNTD Poales All Alpine Braxon Peak 2 27.3270 64.8363 23.5725 944.5 -1.5912 0.0944 0 MNTD Lamiales All Alpine Castle Peak 3 46.0146 53.6315 17.6642 4379 -0.4312 0.4379 0 MNTD Lamiales All Alpine D.O. Lee Peak 1 NA NA NA NA NA NA NA MNTD Lamiales All Alpine Horstmann Peak 1 NA NA NA NA NA NA NA MNTD Lamiales All Alpine Hyndman Peak 4 58.2130 45.3287 13.3879 8451.5 0.9624 0.8451 0 MNTD Lamiales All Alpine Mount Cramer 3 28.5633 53.5661 17.6071 976.5 -1.4200 0.0976 0 MNTD Lamiales All Alpine Salzburger Spitzl 6 37.0270 34.6959 8.6687 5491.5 0.2689 0.5491 0 MNTD Lamiales All Alpine Snowyside Peak 0 NA NA NA NA NA NA NA MNTD Lamiales All Alpine Thompson Peak 2 74.9335 65.3875 23.4935 3872.5 0.4063 0.3872 0 MNTD Lamiales All Alpine Braxon Peak 0 NA NA NA NA NA NA NA MNTD Brassicales All Alpine Castle Peak 5 6.8700 16.1856 4.4808 454 -2.0790 0.0454 1 MNTD Brassicales All Alpine D.O. Lee Peak 4 22.4763 18.5564 5.9810 7908 0.6554 0.7907 0 MNTD Brassicales All Alpine Horstmann Peak 2 40.8734 29.9076 14.4183 6458 0.7606 0.6457 0 MNTD Brassicales All Alpine Hyndman Peak 5 20.0737 16.1252 4.5244 7633 0.8727 0.7632 0 MNTD Brassicales All Alpine Mount Cramer 2 26.0531 29.7091 14.5076 3365 -0.2520 0.3365 0 MNTD Brassicales All Alpine Salzburger Spitzl 3 37.3539 22.7391 8.9096 9134 1.6403 0.9133 0 MNTD Brassicales All Alpine 2 Snowyside Peak 3 37.3539 22.9042 9.0033 9082.5 1.6049 0.9082 0 MNTD Brassicales All Alpine Thompson Peak 3 14.1084 22.7698 8.8733 1348.5 -0.9761 0.1348 0 MNTD Brassicales All Alpine Braxon Peak 0 NA NA NA NA NA NA NA MNTD Ericales All Alpine Castle Peak 2 60.7213 129.0351 56.3919 2524 -1.2114 0.2524 0 MNTD Ericales All Alpine D.O. Lee Peak 5 96.8332 66.8543 21.8421 9461.5 1.3725 0.9461 0 MNTD Ericales All Alpine Horstmann Peak 2 165.6447 129.2357 56.4174 5340.5 0.6454 0.5340 0 MNTD Ericales All Alpine Hyndman Peak 6 51.8334 58.3211 15.3555 3208 -0.4225 0.3208 0 MNTD Ericales All Alpine Mount Cramer 3 23.4240 101.1867 38.4455 85 -2.0227 0.0085 1 MNTD Ericales All Alpine Salzburger Spitzl 4 114.3768 80.7064 27.6733 9153 1.2167 0.9152 0 MNTD Ericales All Alpine Snowyside Peak 3 84.3417 100.0933 38.3413 2826 -0.4108 0.2826 0 MNTD Ericales All Alpine Thompson Peak 5 38.3429 66.9372 21.5914 1404.5 -1.3243 0.1404 0 MNTD Ericales All Alpine Braxon Peak 26 334.7769 319.2831 53.6715 6352 0.2887 0.6351 0 MPD Tracheophyta All Alpine Castle Peak 53 327.0381 319.5218 33.1867 5917 0.2265 0.5916 0 MPD Tracheophyta All Alpine D.O. Lee Peak 51 258.2889 319.1821 33.8738 318 -1.7977 0.0318 1 MPD Tracheophyta All Alpine Horstmann Peak 35 414.1554 319.6092 44.6160 9770 2.1191 0.9769 1 MPD Tracheophyta All Alpine Hyndman Peak 72 279.1681 319.0366 25.6854 630 -1.5522 0.0630 0 MPD Tracheophyta All Alpine Mount Cramer 37 323.0130 319.6096 42.5737 5502 0.0799 0.5501 0 MPD Tracheophyta All Alpine Salzburger Spitzl 63 309.4804 318.6932 28.5608 3806 -0.3226 0.3806 0 MPD Tracheophyta All Alpine Snowyside Peak 35 390.6137 319.0642 44.2550 9380 1.6168 0.9379 0 MPD Tracheophyta All Alpine Thompson Peak 45 323.9410 318.1121 37.1511 5778 0.1569 0.5777 0 MPD Tracheophyta All Alpine Braxon Peak 7 88.3251 90.4796 12.0288 4011.5 -0.1791 0.4011 0 MPD Asterales All Alpine Castle Peak 17 86.8631 90.6804 5.8198 2545 -0.6559 0.2545 0 MPD Asterales All Alpine D.O.