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WOODY PLANT DENSITY <br />"Background" Density <br />(Table A -3) <br />Total average "Background" woody plant density in BRB -5 was 554.4 stems per acre. Mountain <br />snowberry (Symphoricarpos rotundifolius) was the densest at 206.4 stems per acre followed by big <br />sagebrush (Seriphidium tridentatum) with 132.3 stems per acre. Four other species of shrub were <br />present, each with densities of 100 stems per acre or fewer. <br />Concentration Area Density <br />(Table A- 4) <br />Total average "Concentration Area" woody plant density in BRB -5 was 2035.6 stems per acre. Big <br />sagebrush was the densest at 1223.0 stems per acre followed by mountain snowberry with 433.0 stems <br />per acre. Six other species of shrub were present, each'with densities of fewer than 220 stems per acre. <br />2011 Mountain Brush Reference Area <br />(Photographs 9 through 12) <br />COVER <br />(Table A -5) <br />Native shrubs were the predominant lifeform observed in the Mountain Brush Reference Area, <br />contributing 62.9 percent total first) -hit vegetation cover. Of this, Gambel's oak (Quercus gambelii) <br />contributed 29.1 percent, mountain snowberry contributed 15.2 percent, and Saskatoon serviceberry <br />(Amelanchier alnifolia) contributed 13.9 percent. Native perennial forbs and native perennial cool season <br />grasses made moderate contributions to cover, with 10.9 and 7.3 percent, respectively. Also observed in <br />the area was the noxious weed hound's tongue. <br />Total average vegetation cover for first -hits was 85.3 percent. Allowable first -hit herbaceous cover was <br />21.0 percent. Cover by standing dead, litter, bare soil and rock averaged 0.5, 8.9, 5.3 and 0.0 percent, <br />respectively. Average species density was 40.0 species per 100sq. m. <br />14 <br />