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Great Basin sagebrush communities are experiencing widespread degradation due to the introduction of invasive annual weeds and disturbances that promote weed expansion, including inappropriate grazing and fire. Many sites previously occupied by diverse communities of perennial grasses, forbs, and shrubs have been reduced to depauperate sagebrush stands that readily become dominated by invasive annuals following fire. Post-fire seeding may be necessary to prevent these areas from converting to annual grasslands.
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