Table 5. Recruitment rate (number new plants during study/ number 

 of plants at start of study) for Centaurea maculosa removal 

 (treatment) and control plots at Birch Creek (1987-1990) and 

 Charley's Gulch (1987-1989). 



New Plants 

 Recruitment 



Birch Creek 

 Original Plants 



Total 



Control 195 

 Treatment 289 



106 

 76 



301 

 365 



1.84 

 3.80 



X z =17.21, p<0.001 



New Plants 

 Recruitment 



Charley's Gulch 

 Original Plants 



Total 



Control 29 

 Treatment 59 



72 



64 



X 2 =8.620, p=0.003 



101 

 123 



1.84 

 3.80 



