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Table 10• ver, frequency, and density for shrub species the affected area big sagebrush community. Ba ed <br />on data from 15 2m x lOm quadrats. Height Class I = 0.10-0.25m; Class II = 0.26-0.50m; Class III = <br />0.51-0.75m; Class IV = 0.76-I.DOm; Class V = >1.OOm. Importance Value (I.V.) = Relative Cover + <br />Relative Frequency + Relative Density. 1980 data. <br /> Height <br />Class Mean <br />Cover Relative <br />Cover Percent <br />Frequency Relative <br />Frequency Mean No. <br />per Hectare Relative <br />Density <br />I.V. <br />Rank <br />Artemisia nova Total 0.1 0.34 13.3 7.67 267 G.59 8.60 5 <br /> I 267 <br />Artemisia Total 27.2 92.52 100.0 57.70 42133 92.67 242.89 1 <br />tridentata I 24800 <br /> II 15233 <br /> III 2100 <br />Chrysothcmmus Total 1.8 6.12 20.0 11.54 1533 3.37 21.03 2 <br />nauseosus I 667 <br />~ II 867 <br /> <br />Chrysothamnus Total 0.2 0.68 13.3 7.67 733 1.61 9.96 4 <br />parryi I 167 <br /> II 567 <br />Chrysotnanmus Total 0.1 0.34 20.0 11.54 767 1.69 13.57 3 <br />viscidif'Zorus I 567 <br /> II 200 <br />Tetradyrria Total 6.7 3.87 33 0.07 3.94 6 <br />eaneseens I <br /> II 33 <br />