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<br /> <br /> <br />and can be expected to continue occurring on this site as it does on other areas such as inclusions of <br />croplands. The sage-grass site does not provide hiding or thermal cover to big game. Sage grouse <br />populations in the area are very low and no known alive leks for sage or sharp-tail grouse exist on or <br />near the mine plan area. <br />2) Range sites A and B, mountain shrub types, will be returned to spring-summer-fall mule deer habitat <br />and elk winter habdat with consideration for spring and fall livestock grazing and year-round water- <br />shed management. <br />Shrubs will be reestablished on range sites A and B in clumps approximately 1.6 acres in size. Since <br />critical deer winter range does not exist at Trapper Mine, the purpose of reestablished shrubs will be <br />to provide hiding and thermal cover to promote spring, summer, and fall use. These same shrub <br />Dumps will provide thermal cover and forage to wintering elk. Shrub Gump survival data is given in <br />Table 4.413. Mature shrub Dumps will be considered successfully established upon verification by a <br />CDMG representative that clump construction was accomplished according to permit agreements. <br />3) The distance between shrub Dumps (across open forage areas) will not generally exceed 1,400 feet. <br />State regulations require that a permittee demonstrate shrub seedlings are viable and showing growth. <br />This will be demonstrated from density measurements. Shrubs that do not show evidence of I'rfe will not <br />be counted. No actual measurements of stem height or woody plant cover are necessary. Individuals <br />that are alive at the time of evaluating reGamation success, i.e.. in the 10th year of liability will have <br />demonstrated vigor and production potential by virtue of the time elapsed. Further, palatable species <br />such as bitterbrush or mountain mahogany will probably be kept cropped back by grazing ungulates, <br />preGuding meaningful measurements of height and cover. <br />The goals of shrub re-establishment are to provide adequate wikllife cover and suitable forage, while <br />simurtaneousy maximizing the value of the land for IivestoGr use. Section 4.8.2.1 provides a discussion <br />of shrub cover and forage as required by deer and elk. Append'a O inGudes a paper 'Re-establishment <br />of Shrubs at the Trapper Mine' that provides a detailed discussion and justfication for the shrub re- <br />establishment goals at Trapper Mine. <br />The shrub re-establishment standani for Trapper Mine on range sites A and B will be a minimum of 400 <br />live stems per acre. Part of this standard will be accomplished through the establishment of mature <br />shrub Dumps as described earlier. As the Dumps are approximatey 1,400 feet apart, the clumps will <br />have an area of influence of neariy 48 acres. A minimum of 250 mature shrub pads are transplanted in <br />each 1.8 acre shrub Gump which will provide hiding and thermal cover in each 48-acre area of influence. <br />The major shrub species transplanted are Gambel's Oak, servicebery, chokecherry, and snowbery. <br />However, all shrub species will be counted to meet density requirements since all species provide some <br />measure of forage and/or cover (Table 4.414). The shrub density standard may also be met through <br />4-118 <br />