Exotic Brome-Grasses in Arid and Semiarid Ecosystems of the Western US

49

support for the Cold Desert and Warm Desert models, but encourage others to
develop studies to test the predictions of all fi ve ecoregional models. The refi nement
and validation of these models would improve their reliability and utility in evaluat-
ing the relative potential for invasion and ecological impact of Bromus in the west-
ern United States.

Appendix

See Table 2.2.

Table 2.2 GrassPortal ( http://www.grassportal.org , accessed 16 Feb 2015, Osborne et al. 2011 ) site
localities used to construct Fig. 2.2

B. arvensis

(= japonicus ) B. hordeaceus

B. diandrus

(= rigidus )

B.

madritensis

B.

rubens

B.

tectorum

Arizona 82 36 108 4 377 183

California 104 979 934 220 1109 664

Colorado 59 3 1 0 1 121

Idaho 31 16 2 0 10 48

Kansas 220 7 0 0 0 266

Montana 45 14 0 0 0 77

Nebraska 50 0 0 0 0 98

Nevada 8 7 9 0 4 25

New Mexico 45 1 9 0 11 61

North Dakota 0 0 0 0 0 34

Oklahoma 36 0 0 0 0 22

Oregon 40 55 71 2 35 141

South Dakota 7 1 0 0 0 36

Texas 89 8 6 0 4 30

Utah 31 10 9 0 13 45

Washington 27 12 92 0 4 113

Wyoming 23 39 0 0 0 40

Sum 897 1188 1241 226 1568 2004

Data Provider Dataset

USDA PLANTS USDA PLANTS Database

Consortium of California Herbaria Consortium of California Herbaria

University of Arizona Herbarium UA Herbarium

Arizona State University, International

Institute for Species Exploration

Arizona State University Vascular Plant

Herbarium

University of Connecticut CONN GBIF data

Berkeley Natural History Museums University and Jepson Herbaria DiGIR

provider

New Mexico Biodiversity Collections

Consortium

New Mexico Biodiversity Collections

Consortium database

(continued)

2 Exotic Annual Bromus Invasions: Comparisons Among Species and Ecoregions...