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REV92284
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REV92284
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Entry Properties
Last modified
8/25/2016 3:13:44 AM
Creation date
11/21/2007 11:20:05 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1980005
IBM Index Class Name
Revision
Doc Date
12/1/1993
Doc Name
RESPONSES TO PRELIMINARY ADEQUACY ISSUES SENECA II MINE C-80-005 TR 27
Type & Sequence
TR27
Media Type
D
Archive
No
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<br />sampling efforts. The contribution of high density areas to <br />the average density will be quickly reduced when zero or low <br />density plots are encountered. The average number of woody <br />plants per acre may not be high, but the large diversity in <br />stand density creates the potential for more edge and greater <br />heterogeneity in the pattern of shrub distributions. Over <br />time, shrubs will expand into low density areas, resulting in <br />greater variation in age class of the shrub stands. Wadge <br />pasture sampling in 1992 showed that 12 percent of the plots <br />had 0 shrubs, 60 percent had 40 to 400 shrubs per acre, 16 <br />percent had 400 to 800, 4 percent had 800 to 1000, and 8 <br />percent had greater than 1000. Sampling for shrubs in <br />reclaimed areas has historically resulted in standard <br />deviations that equal or are greater than mean values. <br />Therefore, the greater challenge may be to determine through <br />adequate sampling what the true density and distribution of <br />shrubs is on reclaimed lands. <br />PWCC is also puzzled by CDOW's statement that they do not <br />agree that reclaimed areas are beneficial to wildlife. <br />Ironically, the attraction of reclaimed areas to deer and elk <br />and in some cases marmots, rabbits, and porcupines, has been <br />somewhat detrimental to shrub establishment programs. By <br />CDOW's own admission, they are no longer concerned about big <br />game and mining (specific critical habitat issues excepted). <br />Contrast this to concerns in the late 1970's and early 1980's. <br /> Benefits of herbaceous dominated reclaimed areas to big game <br />• has been discussed in Tab 13. These areas provide good <br /> spring, summer, and fall range, especially when nutritional <br /> requirements for large ungulates is considered. Many other <br /> species of wildlife are observed in reclaimed areas on a daily <br /> basis. Raptors, passerine birds, grouse, reptiles, and a <br /> variety of mammals are present. Ferruginous hawks have been <br /> sighted over reclaimed areas occasionally, while golden eagles <br /> nest and are active in the mine vicinity. It is true that <br /> species requiring tall shrub habitat or denser stands of <br /> shrubs may be displaced or otherwise affected. Just as <br /> reclaimed habitat cannot provide thermal cover or browse <br /> during winter months, native shrublands may fall short in <br /> providing forage benefits equal to reclaimed areas in spring <br /> and early summer. However, on a regional scale, tall shrub <br /> and sagebrush habitat is much greater in aerial extent <br /> compared to reclaimed habitat. Do reclaimed areas fulfill a <br /> role in diversifying regional habitat? Fire as an <br /> environmental factor has been controlled; however, it is <br /> reasonable to assume that the aerial extent of native <br /> grasslands would be greater in its presence. If CDOW has <br /> specific concerns or target wildlife species in mind, then <br /> documentation and discussion should be provided in order to <br /> investigate specific mitigation measures if needed. Specific <br /> monitoring plans could then be developed to provide <br /> documentation. <br /> 6 <br />
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