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21 <br /> Examole calculation for veaetation indices: <br /> The following example (Table A.5) demonstrates the <br /> calculation of the two indices used in assessinq tha <br /> veqetation. The Braun-Blanquet covar class and tha WIS <br /> values are used to calculate the these indicas. <br /> 1. Calculation of the percent of tha dominant spaciea that <br /> are rated FAC or wetter: <br /> 3 FAC or wetter speciea � y/x • 100 <br /> where, <br /> x e number of species classified as dominant. Dominant <br /> species being thosa specles with a cover class of 2 or <br /> greater according to the Braun-Blanquet methodoloqy. <br /> y � number of dominant apeciea and that have WIS <br /> ratings of FAC or wetter <br /> 2. Calculation of a Weiqhted Mean Index (WMI) : <br /> For the calculation of a wMI, the Braun-Blanquet cover <br /> abundance ratinga era converted to the mid-points of the <br /> cover class and the WIS assignmants ara converted to <br /> numerical values. Than tha calculation is dona accordinq to <br /> the following formula: <br /> WMI � sum of (CCM * WI51 <br /> sum of (CCM) <br /> where, <br /> CCM = percent cover claes midpoint for each species, <br /> Wis = Wetland Indicator Status value for each species. <br />