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Exclosure Analysis Results for 2007 - Exclosure 5 (most northerly) <br />Populus Populus + Salix <br />number 27 28 55 55 <br />mean height (in.) 78.852 70.357 74.257 74.257 <br />max height (in.) 121 168 168 168 <br />min height (in.) 47 29 29 29 <br />heightSSD** <br />(inches) 19.424 25.035 22.658 22.658 <br />cover 20.268 94.388 36.51 36.51 <br />density 1* <br />(plants/acre) 942 1388 1126 1126 <br />density 2* <br />(plants/acre) 1000 3696 1591 1591 <br />Salix <br />number none found none found none found <br />2006/2007 <br />changes <br />Populus Populus + Salix <br />number -9 5 -4 -4 <br />mean height (in.) 25.7 22.597 23.737 23.737 <br />max height (in.) 6.82 85.3188 53.82 53.82 <br />min height (in.) 31.25 9.314 13.25 13.25 <br />density 1* <br />(plants/acre) -162 404 -82 -82 <br />Sa[ix none in 2006 none in 2006 none in 2006 <br />* Density 1 is density for total length of transect; Density 2 is density on portion of transect occupied by woody species. <br />** SSD is the standard deviation for the sample =the amount of variation greater than and less than the mean normally <br />expected, based upon the sample data obtained. <br />Sa[ix includes Salix exigua and Salix amygdaloides combined, but mostly the former as few of the latter were <br />encountered. <br />CONCLUSIONS OF EXCLOSURE STUDIES FOR 2007 - <br />It is clear from the data taken, the five exclosures in this study have shown considerable <br />change in the last year. Plant height has increased considerably, especially among the older, well <br />established plants. But gains in the younger plants in Exclosures 1 and 2 have not been small. It also <br />2007 Annual Report Coal Creek Wetland Mitigation Permit DA 198811488 Page 23 <br />