Table 2.
Relative cover of selected species by elevational zone and time exposed. Relative cover is calculated at the transect level for each zone-year combination and then averaged across transects. All species with cover ranks among the top four in any zone-year combination are included. Dashes indicate absence
| Species | Characteristics | Relative Cover (%) by Years Exposed and Sampled Zone | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Duration | Nativity | Wetland indicator | 1 | 2 | 3 | 4 | Upland | ||||
| BTM01 | BTM02 | MID01 | MID02 | TOP01 | TOP02 | UPL01 | UPL02 | ||||
| Amaranthus albus | A | N | FACU | 2.2 | 7.1 | 3.7 | 2.6 | — | — | — | — |
| Ambrosia tomentosa | P | N | UPL | <0.1 | <0.1 | 4.6 | 9.3 | — | — | — | — |
| Bromus inermis | P | E | UPL | — | <0.1 | <0.1 | <0.1 | — | 0.3 | 13.0 | 11.0 |
| Bromus japonicus - B. tectorum | A | E | UPL | — | — | <0.1 | 0.2 | 1.7 | 4.3 | 24.7 | 18.7 |
| Cercocarpus montanus | P | N | UPL | — | — | — | — | 0.6 | 2.3 | 10.4 | 17.1 |
| Chenopodium glaucum | A | E | FACW | 57.8 | 56.1 | 15.8 | 0.4 | — | — | — | — |
| Cirsium arvense | P | E | FACU | 0.2 | 0.1 | 1.8 | 13.3 | 0.8 | 3.5 | 1.0 | 0.7 |
| Ericameria nauseosa | P | N | UPL | — | — | <0.1 | 0.2 | 10.3 | 9.2 | 1.7 | 1.8 |
| Lactuca serriola | A | E | FAC | — | — | 2.0 | 2.9 | 12.0 | 11.7 | — | — |
| Melilotus spp. | A/B | E | FACU | 0.2 | 0.1 | 9.5 | 5.9 | 15.1 | 0.7 | 0.5 | — |
| Panicum capillare | A | N | FAC | 10.4 | 10.3 | 26.2 | 7.2 | 8.0 | 1.2 | — | — |
| Populus deltoides subsp. monilifera | P | N | FAC | 4.4 | 1.8 | 2.4 | 3.5 | 0.4 | 0.5 | — | — |
| Rhus aromatica | P | N | UPL | — | — | — | — | — | — | 13.2 | 9.2 |
| Rorippa curvipes | A/B/P | E | FACW | 5.3 | 0.9 | <0.1 | — | — | — | — | |
| Salsola collina | A | E | UPL | — | — | 0.9 | 15.1 | 2.9 | 13.3 | — | 0.3 |
| Suckleya suckleyana | A | N | FACW | 3.5 | 7.2 | 0.1 | 0.2 | — | — | — | — |
| Verbascum thapsus | B | E | UPL | <0.1 | <0.1 | 1.3 | 2.5 | 11.1 | 11.7 | — | — |
| Verbena bracteata | A/P | N | UPL | 0.2 | 0.2 | 9.6 | 10.3 | 9.9 | 4.0 | <0.1 | — |
A = annual, B = biennial, P = perennial, N = native, E = exotic, W = wetland, FACW = facultative wetland, FAC = facultative, FACU = facultative upland, UPL = upland