TABLE 2.
SDM model performance and relative importance of environmental predictors for Mojave Desert native plant species
| Species | n | Model performance | Relative importance of model terms | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AUC | TSS | AHM | CMD | WP | SP | T max | T min | T range | HLI | Slope | TPI | Text | AMP/MAXN b | SWS | ||
| Cacti | ||||||||||||||||
| Echinocereus engelmannii | 505 | 0.901 | 0.699 | 13.68 | 3.71 | 7.13 | 7.60 | 7.69 | 5.53 | 14.24 | 0.00 | 0.91 | 9.92 | 14.60 | 10.80 | 4.17 |
| Opuntia basilaris | 967 | 0.852 | 0.571 | 5.82 | 11.81 | 9.25 | 7.14 | 5.56 | 8.60 | 12.28 | 0.00 | 8.96 | 10.25 | 14.66 | 2.17 | 3.52 |
| Forbs a | ||||||||||||||||
| Acmispon humistratus | 196 | 0.888 | 0.678 | 6.95 | 7.04 | 2.22 | 2.08 | 12.99 | 13.60 | 11.50 | 0.48 | 6.55 | 9.00 | 0.46 | 27.14 | 0.00 |
| Acmispon strigosus | 352 | 0.902 | 0.677 | 7.72 | 3.70 | 14.98 | 14.82 | 8.09 | 10.58 | 18.85 | 0.00 | 6.95 | 5.50 | 3.60 | 5.21 | 0.00 |
| Amsinckia tessellata | 889 | 0.828 | 0.538 | 9.82 | 0.00 | 7.21 | 17.46 | 9.68 | 12.69 | 10.35 | 0.94 | 3.78 | 7.13 | 4.65 | 14.95 | 1.33 |
| Asclepias erosa | 108 | 0.894 | 0.733 | 8.26 | 2.62 | 15.25 | 7.85 | 5.79 | 16.67 | 14.05 | 6.93 | 11.43 | 2.16 | 7.56 | 0.81 | 0.64 |
| Astragalus didymocarpus | 152 | 0.884 | 0.694 | 9.48 | 0.96 | 6.79 | 22.75 | 17.84 | 12.29 | 7.65 | 3.93 | 0.75 | 5.29 | 8.86 | 2.69 | 0.71 |
| Astragalus layneae | 168 | 0.922 | 0.76 | 18.14 | 3.20 | 4.96 | 16.89 | 22.43 | 1.07 | 3.54 | 0.64 | 3.89 | 9.66 | 6.78 | 4.35 | 4.45 |
| Baileya multiradiata | 242 | 0.902 | 0.688 | 8.40 | 7.58 | 5.64 | 29.67 | 8.11 | 12.56 | 6.78 | 1.67 | 3.19 | 9.29 | 4.92 | 2.19 | 0.00 |
| Chylismia brevipes | 806 | 0.858 | 0.611 | 14.38 | 4.99 | 10.89 | 21.51 | 6.00 | 7.00 | 5.18 | 0.48 | 6.27 | 4.91 | 13.35 | 3.09 | 1.94 |
| Cryptantha micrantha | 513 | 0.857 | 0.594 | 8.87 | 3.39 | 16.92 | 10.92 | 8.45 | 12.80 | 13.95 | 0.55 | 3.23 | 6.97 | 6.17 | 7.79 | 0.00 |
| Cryptantha nevadensis | 880 | 0.837 | 0.549 | 8.24 | 6.12 | 13.61 | 22.87 | 4.55 | 10.99 | 7.58 | 1.09 | 9.67 | 7.35 | 0.00 | 6.12 | 1.81 |
| Descurainia pinnata | 740 | 0.86 | 0.602 | 5.91 | 4.92 | 13.29 | 8.08 | 6.53 | 11.00 | 16.63 | 0.19 | 7.62 | 6.49 | 5.28 | 14.08 | 0.00 |
| Eriogonum inflatum | 1395 | 0.858 | 0.584 | 6.51 | 7.45 | 7.71 | 10.35 | 6.50 | 6.27 | 5.79 | 1.61 | 21.25 | 6.28 | 6.88 | 4.99 | 8.40 |
| Euphorbia albomarginata | 484 | 0.886 | 0.659 | 8.83 | 4.09 | 14.55 | 8.76 | 9.70 | 14.06 | 19.35 | 4.15 | 2.98 | 3.94 | 3.67 | 3.27 | 2.65 |
| Lepidium lasiocarpum | 1210 | 0.863 | 0.606 | 3.11 | 11.16 | 5.87 | 19.39 | 8.81 | 11.87 | 13.00 | 2.79 | 3.48 | 2.86 | 7.96 | 9.70 | 0.00 |
| Lupinus odoratus | 45 | 0.97 | 0.919 | 9.97 | 5.68 | 13.09 | 22.51 | 14.41 | 0.00 | 0.00 | 0.00 | 7.93 | 9.52 | 16.88 | 0.00 | 0.00 |
| Malacothrix glabrata | 744 | 0.837 | 0.554 | 14.33 | 3.47 | 14.26 | 13.97 | 5.72 | 7.97 | 11.64 | 1.73 | 2.87 | 10.59 | 3.88 | 5.89 | 3.67 |
| Mirabilis laevis | 341 | 0.893 | 0.669 | 6.93 | 10.60 | 3.57 | 13.25 | 11.70 | 0.48 | 18.76 | 0.00 | 10.92 | 1.82 | 14.05 | 5.09 | 2.83 |
| Oenothera cespitosa | 94 | 0.944 | 0.814 | 6.59 | 1.75 | 14.37 | 10.15 | 27.20 | 8.74 | 6.74 | 1.32 | 4.12 | 3.58 | 15.43 | 0.00 | 0.00 |
| Oenothera deltoides | 299 | 0.916 | 0.759 | 11.81 | 12.21 | 5.02 | 11.51 | 5.35 | 18.49 | 3.07 | 12.84 | 7.71 | 4.91 | 1.39 | 4.89 | 0.80 |
| Oenothera primiveris | 88 | 0.898 | 0.701 | 2.96 | 20.82 | 4.50 | 9.05 | 8.20 | 12.68 | 2.09 | 3.21 | 13.77 | 15.97 | 2.98 | 3.09 | 0.69 |
| Penstemon palmeri | 203 | 0.922 | 0.775 | 5.84 | 3.46 | 7.77 | 30.51 | 10.27 | 5.51 | 0.00 | 1.59 | 6.39 | 9.91 | 16.49 | 2.27 | 0.00 |
| Plantago ovata | 1208 | 0.862 | 0.588 | 10.68 | 6.81 | 6.34 | 7.59 | 22.63 | 10.58 | 4.39 | 2.06 | 5.70 | 9.93 | 6.70 | 2.36 | 4.23 |
| Salvia columbariae | 687 | 0.864 | 0.596 | 7.31 | 3.59 | 5.38 | 14.98 | 11.18 | 10.62 | 12.13 | 1.67 | 10.80 | 3.73 | 7.94 | 8.55 | 2.12 |
| Sphaeralcea ambigua | 1458 | 0.831 | 0.528 | 16.55 | 3.30 | 5.23 | 13.02 | 12.92 | 3.76 | 12.18 | 1.44 | 0.63 | 8.12 | 12.55 | 2.82 | 7.48 |
| Stephanomeria exigua | 222 | 0.899 | 0.712 | 1.32 | 4.81 | 16.84 | 10.56 | 5.41 | 6.57 | 28.60 | 0.88 | 3.32 | 15.71 | 1.76 | 3.48 | 0.74 |
| Grasses | ||||||||||||||||
| Achnatherum hymenoides | 530 | 0.836 | 0.57 | 8.76 | 4.19 | 5.13 | 4.38 | 10.80 | 16.22 | 17.96 | 4.05 | 5.65 | 11.21 | 6.32 | 3.99 | 1.34 |
| Hilaria rigida | 658 | 0.871 | 0.611 | 5.22 | 11.10 | 7.86 | 14.76 | 7.19 | 11.47 | 15.20 | 1.77 | 6.22 | 2.57 | 4.93 | 9.89 | 1.82 |
| Muhlenbergia porteri | 418 | 0.915 | 0.733 | 11.46 | 7.01 | 5.96 | 23.61 | 7.65 | 10.56 | 16.40 | 0.00 | 0.79 | 0.32 | 7.19 | 8.25 | 0.78 |
| Vulpia octoflora | 532 | 0.868 | 0.605 | 3.35 | 8.94 | 9.35 | 9.21 | 9.90 | 5.30 | 12.15 | 4.54 | 16.65 | 13.49 | 1.43 | 0.00 | 5.68 |
| Shrubs | ||||||||||||||||
| Ambrosia dumosa | 2524 | 0.822 | 0.496 | 21.45 | 6.53 | 7.71 | 15.43 | 5.98 | 4.60 | 8.27 | 2.61 | 7.62 | 9.30 | 4.44 | 6.07 | 0.00 |
| Ambrosia salsola | 1280 | 0.831 | 0.531 | 16.83 | 6.40 | 11.18 | 13.55 | 9.85 | 4.54 | 10.11 | 0.27 | 3.43 | 10.90 | 4.85 | 8.09 | 0.00 |
| Atriplex hymenelytra | 305 | 0.92 | 0.742 | 0.00 | 5.51 | 0.83 | 19.42 | 17.60 | 10.90 | 12.11 | 0.77 | 13.77 | 2.92 | 4.86 | 7.26 | 4.05 |
| Encelia farinosa | 892 | 0.896 | 0.659 | 0.00 | 14.74 | 3.56 | 9.66 | 5.97 | 9.23 | 6.93 | 2.49 | 11.54 | 6.00 | 22.34 | 4.87 | 2.66 |
| Ephedra nevadensis | 1972 | 0.84 | 0.557 | 15.78 | 5.72 | 9.41 | 9.26 | 13.06 | 7.21 | 13.40 | 1.16 | 7.51 | 6.10 | 3.83 | 5.54 | 2.02 |
| Ericameria cooperi | 433 | 0.921 | 0.727 | 10.48 | 0.00 | 7.19 | 14.46 | 24.13 | 7.02 | 10.56 | 1.45 | 4.79 | 4.76 | 3.59 | 8.96 | 2.62 |
| Eriogonum fasciculatum | 1098 | 0.872 | 0.6 | 14.07 | 4.52 | 9.87 | 9.59 | 10.14 | 3.36 | 10.40 | 4.62 | 8.85 | 3.28 | 10.31 | 9.33 | 1.66 |
| Krameria bicolor | 272 | 0.92 | 0.732 | 3.75 | 13.60 | 9.45 | 8.08 | 7.26 | 12.26 | 12.89 | 1.10 | 9.29 | 3.39 | 18.93 | 0.00 | 0.00 |
| Krameria erecta | 798 | 0.885 | 0.637 | 8.25 | 12.89 | 5.38 | 14.47 | 6.84 | 11.69 | 8.83 | 0.00 | 8.17 | 3.86 | 8.76 | 10.86 | 0.00 |
| Larrea tridentata | 2337 | 0.833 | 0.521 | 17.52 | 8.65 | 11.66 | 14.03 | 7.49 | 4.01 | 3.10 | 1.82 | 7.85 | 10.97 | 4.78 | 8.12 | 0.00 |
| Lycium andersonii | 653 | 0.861 | 0.583 | 4.76 | 6.20 | 11.35 | 17.20 | 11.12 | 9.70 | 19.77 | 1.41 | 0.84 | 1.49 | 4.12 | 6.28 | 5.77 |
| Lycium cooperi | 306 | 0.88 | 0.638 | 10.85 | 12.39 | 1.83 | 14.40 | 19.09 | 11.44 | 14.18 | 0.51 | 5.41 | 6.01 | 0.00 | 3.89 | 0.00 |
| Lycium pallidum | 131 | 0.902 | 0.698 | 1.30 | 24.08 | 11.61 | 14.27 | 1.06 | 14.66 | 10.34 | 1.37 | 4.01 | 2.23 | 7.16 | 0.00 | 7.91 |
| Psorothamnus fremontii | 444 | 0.894 | 0.672 | 9.24 | 4.83 | 10.46 | 16.23 | 12.72 | 11.90 | 9.40 | 0.75 | 12.51 | 6.26 | 3.39 | 0.00 | 2.31 |
| Stephanomeria parryi | 100 | 0.926 | 0.815 | 8.29 | 3.34 | 5.07 | 19.68 | 21.26 | 0.00 | 20.69 | 0.00 | 8.14 | 2.14 | 5.65 | 2.31 | 3.42 |
| Trees/Arborescents | ||||||||||||||||
| Chilopsis linearis | 330 | 0.9 | 0.688 | 0.00 | 20.18 | 19.65 | 4.70 | 5.16 | 4.60 | 4.47 | 1.72 | 0.72 | 8.84 | 19.62 | 6.20 | 4.13 |
| Yucca brevifolia c | 1633 | 0.875 | 0.622 | 10.11 | 3.70 | 5.09 | 10.52 | 8.11 | 12.64 | 15.24 | 0.16 | 6.97 | 9.27 | 4.10 | 4.61 | 9.49 |
| Yucca schidigera | 1123 | 0.884 | 0.668 | 10.26 | 7.38 | 5.82 | 15.88 | 6.16 | 7.76 | 11.81 | 0.00 | 11.91 | 3.79 | 13.13 | 6.09 | 0.00 |
| Average | 0.881 | 0.652 | 8.78 | 7.17 | 8.74 | 13.84 | 10.46 | 9.06 | 11.11 | 1.73 | 6.89 | 6.73 | 7.62 | 5.68 | 2.20 | |
a
Perennial forbs are in bold.
b
MAXN was used to represent canopy photosynthetic activity in models including perennial species, while AMP was used to represent vegetation green‐up potential in models including annual species.
c
This species has two recognized varieties in the ITIS, var. brevifolia and var. jaegeriana, of which the former occurs predominantly in the western Mojave Desert and the latter in the eastern Mojave, with limited transitional areas in southern NV. However, Lenz (2007) reassessed Y. brevifolia and Y. jaegeriana as distinct species.