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Absolute c ver values ( first hits only) were used in the <br /> sample adequacy calcut Lions. <br /> 2.4 PLANT SPECIES COLLECTION AND IDENTIFICATION <br /> Plant species were collected throughout the 1981 growing season. <br /> Species were identified by field ecologists conducting the study and <br /> confirmed by Dr. Willia A. Weber, Curator of the Herbarium, University <br /> of Colorado. Taxonomic nomenclature follows Weber and Johnston (1979) . <br /> Nickerson et at . (1976)' and Beetle (1970) were consulted in an attempt <br /> to apply the most widely utilized common names. Primary selenium indi- <br /> cators are in accordance with WDEQ Guideline No. 2 as revised March 1980. <br /> Noxious weed designatorls follow Thornton et al . (1974) . Statements of <br /> origin follow Weber and Johnston (1979) . Voucher specimens have been <br /> preserved in a reference collection. <br /> 2.5 SPECIES DIVERSITY <br /> The diversity (equitabitity) index was determined using the formula <br /> n. /n. <br /> _ '_ l o g N' <br /> where n. equals the abs lute cover value for each species encountered <br /> in a community and N eq ats the total absolute vegetation cover in a <br /> community (Whittaker 1975) . <br /> 2.6 TIME OF SAMPLING <br /> Vegetation cover a d production data were collected in June and <br /> July 1981 and density w;rk started in July and finished in August 1981. <br /> 2.7 AGENCY COORDINATIO <br /> On 4 August 1981, David Johnson and Dr. David Buckner of <br /> Western Resource Development met with Ms. Sandy Emrich and Mr. Mike <br /> Savage to discuss produ Lion sample adequacy requirements. It was agreed <br /> that 79 samples (2 m2) OuId be adequate for the production baseline <br /> standard. It should be noted, however, that an additional 21 more produc- <br /> tion samples were taken before news of the 79 sample maximum could be <br /> conveyed to the field crews. <br /> On 17 August 1981, Mr. David Johnson again met with Ms. Sandy Emrich <br /> of CMLR to discuss problems of achieving sample adequacy for shrub <br /> density. Ms. Emrich co ctuded that 51 quadrats (1 x 50 m) would be <br /> sufficient to establisha baseline standard for the affected area vege- <br /> tation type. Also, during the meeting it was agreed that all trees <br /> -4- <br />