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• follows Dr. Weber's book Colorado Flora• Western SIoQe• ]987• Colorado Associated <br />University Press. Boulder. Co. <br />Statistical Evaluation: <br />The calculation of sample adequacy followed methods modified from those <br />outlined on page 15 of the Division's Vegetation Guidelines. Rather than simply using <br />1.64, sample adequacy was calculated using a t table value for atwo-tailed comparison <br />with n-1 degrees of freedom, where n was the number of samples collected. T-test <br />comparisons were consistent with the methodology described on page 16 of the <br />Vegetation Guidelines. <br />• RESULTS ----------------- <br />MAJOR COMMUNITIES <br />Three major communities were identified over the potential disturbed area. The <br />Disturbed Meadow community (Meadow) was the most unique. It was a <br />predominantly herbaceous community which had more than 50% of its total cover and <br />production contributed by annual or noxious species. The other two communities, <br />Juniper Woodland (JW) and Mixed Shrub (MS) were dominated by woody species, <br />though in both communities, more perennial fofi species were encountered than either <br />perennial grass or shrub species. The Juniper Woodland community had an important <br />amotmt of cover and production from annual plant species whereas the Mixed Shrub <br />community had greater than 95% relative cover and more than 85% production due to <br />perennial, non-noxious species. Annual and noxious species do not apply toward <br />• <br />7 <br />