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Thistle Species Density Summary* <br /> Reference Area#3 (Beltline Flat) <br /> Transect# #Thistles per belt** # Thistles per sq. meter <br /> 1 78 7.8 <br /> 2 49 4.9 <br /> 3 49 4.9 <br /> 4 60 6.0 <br /> 5 187 18.7 <br /> 6 61 6.1 <br /> 7 153 15.3 <br /> 8 161 16.1 <br /> 9 128 12.8 <br /> 10 145 14.5 <br /> * Carduus acanthoides and•Carduus nutans were lumped together, no other noxious <br /> species were present. <br /> ** 1 m x 10 m quadrat <br /> -------------------------------------------------------- <br /> Sample mean= 10.7 thistles per sq. meter nmin (2 tail, alpha=.2; 9df) =47 <br /> Std. deviation= 5.3 <br /> n= 10 <br /> 80% C.I. = 10.7 +/- 2.3 <br /> 90% C.I. = 10.7+/- 3.1 <br />