. 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. Figure 19. An example of subclass 2(D), a woodland dominated by western juniper. Western juniper is continuing to increase in density and canopy cover, and mountain big sagebrush and blue- bunch wheatgrass are declining in canopy cover. Photo taken by Jon Subclass 2(D): This subclass is a woodland dominated by species such as western juniper (Figure 19). Western juniper encroachment an
. 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. Figure 19. An example of subclass 2(D), a woodland dominated by western juniper. Western juniper is continuing to increase in density and canopy cover, and mountain big sagebrush and blue- bunch wheatgrass are declining in canopy cover. Photo taken by Jon Subclass 2(D): This subclass is a woodland dominated by species such as western juniper (Figure 19). Western juniper encroachment and increasing density can result in near total loss of sagebrush canopy cover, particularly in the mountain big sagebrush and low sagebrush dominated vegetation (Miller and Eddleman 2001). Subclass 2(D) vegetation is where western juniper is continuing to increase in density and canopy coverage and sagebrush species are on their way out. The vegetation does not provide habitat needs for sage-grouse and other wildlife that rely primarily on sagebrush and associated understory herbaceous species. Sage-grouse did not select western juniper dominated vegetation in central Oregon for nesting or winter habitat (Hanf et al. 1994). Excessive livestock grazing pressure and fire suppression since Euro-American settlement have been the main contributors to the formation of many of these woodlands (Eddleman et al. 1994). These vegetation types have depleted understory herbaceous vegetation in addition to depleted shrub canopy cover and may have depleted biological soil crusts if the sites are capable of supporting biological soil crusts. The depletion of the shrub, herbaceous, and biological soil crust cover may result in accelerated erosion in these vegetation types, as well as in documented declines in vegetation productivity, floral and faunal diversity, and wildlife habitat (Wilcox 2002). This vegetation is not desirable to sustain in its present state if the site has the potential to s
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