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F' • <br />Anaconda proposes to combine cover and production estimates by <br />growth form to yield importance values for use in the similarity <br />indices. Because of the ambiguity in meaning inherent to importance <br />values, I recommend that the Company use only cover values in the <br />similarity indices. Cover estimates are more typically used in <br />assessing diversity, regardless of the evaluation methods proposed. <br />Lastly. the minimum acceptable similarity value still needs to be <br />set. As Anaconda's data indicates that similarity values generally <br />range between approximately 7096 and 90%. I recommend that 7096 be <br />used as the minimum value. <br />If there are any questions or if I can be of further assistance, <br />feel free to call me at 837-5656. <br />Sincerely yours. <br />~~~~~ <br />Thomas J. Guobis <br />cc~ Richard Dominque <br />