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• reclaimed areas was within the range observed in the reference and/or Native Study Area <br />sampling, while introduced annual and biennial (orbs densities in the reclaimed areas <br />almost always continue fo exceed those of the reference areas. Introduced perennial forb <br />species were rather uniformly present at about 1.8 to 3.0 species per 100 m', except in <br />the reference areas where they were less than one species per 100 m'. Native perennial <br />forb density was greatest in the 1983 Wolf Creek and 1986 Wadge Fall areas 18.8 and 9.2 <br />species per 100 m', respectivelyl• These figures compared to 12.1 and 13.8 species per <br />100 m' in the Mountain Brush and Sagebrush Reference Areas, respectively. Wadge <br />Pasture was observed to have 4.8 native perennial forb species per 100 m', compared to <br />4.2 species per 100 m' in the Wadge Pasture Comparison Area. <br />Total species density of perennial graminoids (introduced and native) in the Mountain Brush <br />and Sagebrush Reference Areas was 3.9 and 6.4 species per 100 m'. This total is equaled <br />and exceeded in all reclaimed areas except the 1986 Wadge Spring area. Shrub species <br />density in the Mountain Brush and Sagebrush Reference areas was 3.6 to 5.6 species per <br />100 m'. In the reclaimed areas, shrub species density varied rather narrowly between 1.0 <br />and 1.6 species per 100 m' ,except in the 1983 Wadge area where observed shrub <br />• species density was only 0.2 species per 100 m'. <br />In all reclaimed areas, introduced species provided the bulk of vegetation cover. In eight of <br />the ten reclaimed areas evaluated, a single lifeform of introduced plant species (variably <br />introduced perennial forbs, introduced perennial grasses, or introduced annual forbs) <br />provided 45 percent or more of the vegetation cover. The dominant lifeform was <br />introduced annual forbs in the 1988 Wadge and 1988 Wolf Creek areas, introduced <br />perennial forbs in the 1983 Wadge, 1986 Wadge Spring, Wadge Pasture, and Wadge <br />Pasture Comparison areas, and introduced perennial grasses in the 1983 Wolf Creek and <br />1986 Wadge Fall areas. <br />Native perennial species' contribution to vegetation cover (Table 401 varied from 5.3 to <br />27.7 percent. The lowest levels were in the the 1988 Wadge, 1986 Wadge Spring, and <br />Wadge Pasture 15.3 to 9.9 percent of vegetation cover), while the highest levels were in <br />the 1986 Wadge and 1986 Wadge Fall areas (25.3 and 27.7 percent of vegetation cover, <br />respectively). <br />• <br />11 <br />