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- Standing dead, litter, bare soil, and rock covered 9.0%, 31.0%, 22.4%, and 1.6% respectively of <br />. the sampled areas. Total vegetation cover was 36.0%; species density averaged 18.7 <br />species/100sq.m. <br />Production <br />(Table 9) <br />Total production in the PECOCO pasture in 2002 was 919 Ibs/acre. Alfalfa averaged 12.5 <br />Ibs/acre while all other herbaceous species added up to 908 Ibs/acre. <br />Woody Plant Density <br />(Table 10) <br />An average of six hundred and twenty-seven stems of native shrubs per acre were observed in <br />2002. The most abundant shrub observed was big sagebrush with 348 adult stems/acre. <br />Mountain snowberry was also common with an average of 262 stems/acre. Saskatoon <br />serviceberry, Douglas rabbitbrush (Chrysothamnus viscidiflorus), Woods' rose, and tall threetip <br />sagebrush (Seriphidium tripartitum) each contributed 3 stems per acre to the total. <br />Wadge Pasture Reclaimed Area <br />(Photographs 17-20) <br />• Cover <br />(Table 11) <br />Introduced perennial cool season grasses, comprising five species, averaged over 61 % of total <br />vegetation cover in the Wadge Pasture in 2002. Two-thirds of the lifeform total was provided by <br />smooth brome while one-third of the total was attributable to intermediate wheatgrass. Russian <br />wildrye was a minor quantitative contributor and orchard grass and timothy were also present. <br />Introduced perennial forbs were also abundant in the area, occupying an average of 27% of total <br />vegetation cover, mostly by alfalfa (22% of total vegetation cover) and cicer milkvetch. Whitetop <br />(Cardaria chalepensis) was present on one of the ten sample transects. Native perennial cool <br />season grasses averaged 8% of total vegetation cover, over half of which was attributable to <br />Rocky Mountain fescue. One quarter of this I'rfeform's cover was composed of basin wildrye and <br />the balance consisted of western wheatgrass and Aggasii bluegrass. Native shrubs averaged <br />somewhat less than 4% of total vegetation cover; big sagebrush was the only species making <br />quantitative contribution, while Saskatoon serviceberry and mountain snowberry were also noted <br />as present. Native perennial forbs accounted for less than 0.5% of the total, American vetch the <br />only species observed quantitatively although six other species were also present. Introduced <br />annual and biennial forbs, specifically salsify, provided 0.2% of total vegetation cover in 2002. In <br />11 <br />