Results of the survey of Federal and State land management 

 units are given in tables 1, 2, and 3; and the shrub species 

 damaged are summarized in table 4. Within the survey area, 

 which corresponds generally to the distributional range of big 

 sagebrush, there were large areas with no reported winter in- 

 jur>'. These were primarily almost all of Montana and the east- 

 em two-thirds of Wyoming and Colorado. The areas with the 

 most severe winter injury were most of southern Idaho; south- 

 western Wyoming; northwestern Colorado; northeastern Utah, 

 Nevada, and California; and south-central Oregon. (Refer to 

 tables 1 through 3 for more specific locations.) At least 36 

 species in 21 genera were reported damaged. Artemisia tri- 



Table 1.— Winter injury of western wildland shrubs on National 



dentata injury was reported to occur in 190 localities through- 

 out the survey area, followed by Ceanothus (118), Arcto- 

 staphylos (49), and Purshia (33). Based on the survey estimate, 

 almost entire kill of sagebrush occurred in locations totaling 

 340,000 acres (138 000 ha), with spotty kill in 80 additional 

 locations. The actual area of winter kill was undoubtedly much 

 greater. Injury to other species occurred in a much lesser 

 number of locations (table 4). This is probably a reflection of 

 the relative abundance of the various species at least for those 

 at elevations higher than 6,000 ft (1 800 m). We suspect that 

 the lower elevation desen shrubs, Alriplex, Ceratoides, Grayia, 

 Sarcobatus, and especially Coleogyne were probably killed or 

 injured by drought alone. 



lands 



No. of 



locations' Approximate 



of winter elevation Intensity 



Shrub species injury (1,000 ft) of injury' Symptoms^ 



CALIFORNIA 



Eldorado 



Arctostaphylos spp. 



Ceanothus leucodermis 



Ceanothus integerrimus 

 Inyo 



Arctostaphylos spp. 



Ceanothus velutinus 

 Modoc 



Arctostaphylos patula 



Artemisia tridentata 



Ceanothus velutinus 



Cercocarpus ledifolius 



Juniperus occidentalis 



Purshia tridentata 

 Plumas 



Arctostaphylos spp. 



Artemisia tridentata 



Ceanothus cordulatus 



Ceanothus cuneatus 



Ceanothus velutinus 

 Stanislaus 



Ceanothus cordulatus 

 Tahoe 



Arctostaphylos patula 



Ceanothus cordulatus 



Ceanothus velutinus 



Prunus emarginata 

 COLORADO 



Arapaho-Roosevelt 



None reported 

 Gunnison-Grand Mesa Uncomphagre 



Artemisia tridentata 



Purshia tridentata 

 Rio Grande 



None reported 

 Routt 



Ceanothus spp. 



Juniperus spp. 



Quercus spp. 

 San Juan 



None reported 

 White River 



Quercus gambelii 



Symphoricarpos oreophilus 



3 

 1 

 3 



1 



1 



4 

 1 

 1 

 1 

 1 

 1 



1 

 1 



'l 

 1 

 1 



5.2 

 2.0-3.0 

 3.2-6.0 



7.0-8.5 

 7.0-8.5 



4,6-7.0 

 5.0 

 4.5 

 5.0 



4.2-4.8 



5.0 

 5.0 

 5.0 

 5.0 

 5.0 



6.0 



5.0-7.0 

 6.0-7.0 

 4.0-5.5 



6.9 



9.4 

 9.0 



6.8- 

 8.2- 

 6.8- 



11.0 

 11.0 



7.0 



1 



2 



1- 2 



2 

 2 



2- 3 

 2 



2-3 

 3 

 3 



1-2 



2 

 2 

 2 

 2 

 2 



2 

 2 

 2 

 2 



7.5 

 7.5 



1- 3 

 2 



2- 3 



2 

 2 



1- 2 

 1 



2- 4 



2-4 

 1-3 



1-2 



1- 3 



2- 3 



1- 2 

 1,3 



2 



1.3 

 2 



1,3 

 1,3 

 2,3 



2,3 



2- 3 



1- 3 



2- 3 

 2 



2,4 

 2,3 



2,3 

 1,3 

 2-3 



2 

 2 



(con.) 



6 



