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<br />TABLE 10 <br />ELK PRODUCTIVITY (COW:CALF RATIOS) <br /> 1982 1983 1984 1985 <br /> TOTAL TOTAL TOTAL TOTAL <br />AREA COUNT RATIO COUNT RATIO COUNT RATIO COUNT RATIO <br /> <br />Colorado Yampa Coal Company Mine 90:73 100:81 89:56 100:63 91:47 100:52 52:28 100:54 <br />Pittsburg Midway Edna Mine 69:47 100:68 108:65 100:60 126:63 100:50 69:27* 100:39 <br />Peabody Seneca Mine 114:63 100:55 209:99 100:47 80:40 100:50 135:57 100:42 <br />T07AL MINE 273:183 100:67 406:220 100:54 297:150 100:51 256:112 100:44 <br />Thorpe Mountain & Deerwood Park 82:53 100:64 129:57 100:44 95:47 100:50 65:35 100:54 <br />Quarry Mountain & Cow Creek 68:34 100:50 81:47 100:58 107:49 100:46 66:35 100:53 <br />Middle Creek & Rattlesnake Butte 128:69 100:54 106:57 100:54 105:50 100:48 77:41 100:53 <br />TOTAL CONTROL 278:156 100:56 316:161 100:51 307:146 100:48 208:111 100:53 <br />Little Flat Tops 158:56 100:35 265:131 100:49 193:73 100:38 291:141 100:48 <br />Dunckley Flat Tops 46:15 100:33 27:14 100:52 53:20 100:38 43:21 100:49 <br />TOTAL SUMMER MIGRANTS 204:71 100:35 292:145 100:50 246:93 100:38 334:162 100:49 <br />OVERALL AVERAGE MINE CONTROL SUMMER MIGRANTS <br /> 100:55 100:52 100:43 <br />Statistical analysis using Analysis of Variance and Duncan's Multiple Range Test indicate no significant <br />differences between mine and control elk; however, summer migrants had significantly lower ratios. <br />*Poor counts obtained on nursery groups of calves due to cover. Ground counts by P & M biologist indicated <br />a ratio of 100:50. <br />All counts represent minimum ratios due to calves being more easily missed than cows and yearling bulls <br />occasionally being classified as cows. <br />-66- <br />