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Shadscale Shrubland sample mean: 661 lb/ac. <br />Standazd (90% of mean): 595 lb/ac. <br />Juniper Woodland sample mean: 3891b/ac. <br />Standazd (90% of mean): 3501b/ac. <br />The diversity standard is specified on page 3-17, and requires that a minimum of three <br />perennial species shall each provide a minimum of 3% relative cover. At least two of these <br />species shall be cool season perennial grasses. No individual species shall represent more <br />than 60% relative cover. This standazd was amended by RN-04, from the previous standard <br />which mentioned perennial forbs and warm season grasses as counting towazd the diversity <br />standazd, but identified no minimum relative cover level for any particular life form. Neither <br />warm season grasses nor perennial forbs were significant components of the affected <br />vegetation types. The relatively small number of species required to meet the diversity <br />standard reflects the fact that the total disturbance is only 9.2 acres, and the largest <br />distwbance in any one vegetation type is less than 5 acres. The 60% upper limit is also <br />reflective of the small disturbance azea, and the fact that relative cover of the dominant <br />species in the three affected vegetation types ranged from 40% to 58%. <br />The woody plant density standards previously established by the Division in consultation <br />with the Division of Wildlife aze: <br />Greasewood Shmbland: 500 stems per acre <br />Shadscale Shrubland: 500 stems per acre <br />Juniper Woodland: 1,500 stems per acre <br />The Division fords that a density standazd lower than 90 percent of the density of the <br />approved reference azea is appropriate (4.15.8(7)). <br />IX. PROTECTION OF FISH, WILDLIFE AND RELATED ENVIItONMENTAL VALUES <br />Fish and wildlife information and the fish and wildlife plan are presented in Section 4.3 of the <br />application. The Colorado Division of Wildlife (DOW) and U.S. Fish and Wildlife Service <br />(LJSFWS) were both notified of the RN-OS renewal application, but neither agency submitted <br />comments on the application. The DOW did comment on the RN-04 application in 1996, and <br />noted in their letter that elk use of the permit and adjacent area had increased substantially in the <br />years since the original application had been prepared in the early 1980's. The Lazge Mammal <br />section of the Wildlife Inventory narrative in the permit application was updated to reflect the <br />increased elk use described by DOW. <br />A noxious weed control plan to include the use of 2,4-D, a soil persistent, broadleaf herbicide, and <br />glyphosate (Roundup), anon-persistent, non-selective herbicide, was added to Section 4.5.14 of <br />the application during the RN-04 review, to control noxious weeds such as whitetop, field <br />bindweed and Canada thistle along roads, stockpiles, and other disturbed areas in the permit area. <br />The following specific findings are required. <br />A. The applicant has proposed the use of persistent pesticides on the site during mining and/or <br />reclamation operations. The Division proposes to approve this usage (4.18(5)(g)). <br />23 <br />