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• Total average vegetation cover, for first hits, was 35.8 percent. Total average vegetation cover, <br />for all hits, was 38.2 percent. Standing dead, litter, bare soil, and rock each had 0.5, 18.7, 42.2, <br />and 2.8 percent cover, respectively (first hits). Average species density was 36.1 species per 100 <br />sq.m. <br />Production <br />(Table 5) <br />Total average production was 1,281.2 Ibs per acre. Introduced annual and biennial (orbs <br />contributed the majority with an average production of 392.6 Ibs per acre. Native perennial cool <br />season grasses and introduced annual grasses contributed moderate amounts (306.9 and 276.6 <br />Ibs per acre respectively). Native annual and biennial forbs, native perennial forbs, introduced <br />perennial forbs and introduced perennial cool season grasses were also present, each with less <br />than 110 Ibs per acre. <br />Woody Plant Density <br />(Table 6) <br />Total average density of woody plants was 659.6 stems per acre, entirely composed of native <br />shrubs. Big sagebrush (Seriphidium tridentatum) and bitterbrush (Purshia tridentata) were the <br />dominant species contributing 437.1 and 186.2 stems per acre, respectively. Other native shrubs <br />present included mountain snowberry (Symphoricarpos rotundifolius) and Saskatoon serviceberry <br />(Amelanchier alnifolia) with 16.2 and 20.2 stems per acre, respectively. <br />Reference Areas <br />HAUL ROAD REFERENCE AREA <br />(Photographs 27-30) <br />Cover <br />(Table 7) <br />Introduced perennial cool season grasses were the predominant lifeform observed in the Haul <br />Road Reference Area, contributing 30.7 percent toward total all-hit vegetation cover. Within this <br />group, smooth brome (Bromopsis inermis) was the dominant species contributing 29.1 percent <br />toward total vegetation all-hit cover. Native shrubs was the second most observed litetorm with <br />all the percent cover coming from big sagebrush (Seriphidium tridentatum) contributing 8.1 <br />toward total vegetation all-hit cover. Native perennial cool season grasses were the third most <br />encountered lifeform with 1.5 percent total all-hit vegetation cover. <br />• <br />8 <br />