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It should be noted that because shrub sample data are so highly variable, the confidence limits <br />associated with these data are often from 100 to 200, or even more stems per acre. <br />Species Density and Species CORIDOS1110n <br />Tables 1 through 10 show species density data from each cover sample; these data are <br />summarized in Table 43 and are graphically depicted in Figure 4. Species composition, as <br />reflected in cover data, is present in Tables 1 through 10. Table 44 summarizes the relative <br />cover data from these tables by lifeform and provenance. Figure 5 graphically depicts these <br />same data. <br />Species and lifeform density data reflect both total species/lifeform richness and equitability. <br />The latter is incorporated by virtue of the fact that the occurrence of species is tallied within <br />fixed unit areas (100 m2), and thus frequency is addressed simultaneously with species <br />richness. The highest total species density of all reclaimed areas was observed in the 1988 <br />Wolf Creek reclaimed area because it had the highest complement of native species. <br />. Mountain Brush and Sagebrush References Areas' native species density of 33.9 and 24.6 <br />species per 100 m2, respectively, compared with 1990 figures of 22.9 and 25.9 native <br />species per 100 m2, respectively, and 1991 figures of 28.7 and 27.7, respectively. The <br />Sagebrush reference area data were actually approached in native species density by three <br />reclaimed areas sampled in 1992, in which the native species densities were 16.4 (1985 Wo <br />Creek), 16.8 (1985 Wadge), and 19.0 (1988 Wolf Creek) native species per 100 m2. <br />Total species density was greater than both the reference areas in none of the reclaimed areas; <br />however, total species density exceeded the Sagebrush (but not the Mountain Brush) Reference <br />If <br />Area in the 1985 Wadge, 1988 Wolt Creek, 1990 Wadge, and 1990 Wolf Creek areas. <br />Annual and biennial forbs were, as usual, most diverse in the youngest reclamation areas <br />(1990 Wadge and 1990 Wolf Creek); this was true for both introduced annuals and biennials <br />and native annuals and biennials. The level of native annual and biennial forbs present in <br />reclaimed areas was slightly above the range observed in the reference area sampling only in <br />• 12 <br />