. Assessing big sagebrush at multiple spatial scales : an example in southeast Oregon. Big sagebrush; Sagebrush; Sage grouse; Habitat (Ecology); Vegetation monitoring; Vegetation dynamics; Range ecology. Class 5: Greater than 25 Percent Sagebrush Canopy Cover (Shrubland) Rangelands that exhibit a shrubland aspect are characteristic of this class (Figure 8). Sagebrush canopy cover greater than 25 percent can provide security, cover, and food for wildlife species. Research conducted on Steens Mountain in eastern Oregon by Sheehy (1978) demonstrated the value of this class of cover for fawning mu
. Assessing big sagebrush at multiple spatial scales : an example in southeast Oregon. Big sagebrush; Sagebrush; Sage grouse; Habitat (Ecology); Vegetation monitoring; Vegetation dynamics; Range ecology. Class 5: Greater than 25 Percent Sagebrush Canopy Cover (Shrubland) Rangelands that exhibit a shrubland aspect are characteristic of this class (Figure 8). Sagebrush canopy cover greater than 25 percent can provide security, cover, and food for wildlife species. Research conducted on Steens Mountain in eastern Oregon by Sheehy (1978) demonstrated the value of this class of cover for fawning mule deer. Pygmy rabbits are often associated with canopy cover of 25 percent or more. This level of canopy cover hides the rabbits and provides them with their primary source of food (Weiss and Verts 1984). Connelly et al. (2000) reported nesting use by sage-grouse in class 5 habitats. Depending on ecological site potential and past and present use, grass and forb cover can be highly variable. Use of these canopy cover classes is integral to the sagebrush assessment process and will be discussed frequently in this example. The geo- graphic extent of these canopy cover classes at the pasture level forms the basis for: 1) character- izing habitat conditions at the pasture level and at the GMA level, and 2) ascertaining achieve- ment or nonachievement of Oregon's Standard 5 for Rangeland Health, when combined with understory herbaceous species composition data from range surveys. â. Figure 8. An example of class 5, mid-seral vegetation with shrub cover dominated by mountain big sage- brush and with perennial forbs and grasses present in the understory. Photo taken by Jon Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Karl, Michael G; Sadowski, Jon; United States. Bureau of Land Management; National
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