RESULTS AND DISCUSSION 



Exclosures at the Quartz Hill and Thompson's Corner sites 

 were established in 1991; thus, a valid statistical analysis 

 cannot be performed until 1994. Nonetheless, examination of the 

 data is instructive. Grass cover increased more noticeably in 

 the exclosure plots compared to the control plots. At Quartz 

 Hill the number of A^ fecunda plants decreased in the exclosure 

 but increased outside of it between 1991 and 1993 (Table 1) . The 

 two ratios: 83/67 and 59/81 are significantly different (X-5.04, 

 "g"=0.025) . At Thompson's Corner there were more A^ fecunda 

 plants in both exclosure and control plots in 1993 compared to 

 1991, but the increase was much greater inside the exclosure 

 (Table 2) The ratios 26/116 and 25/42 are significantly different 

 (X^=8.91, "E"=0.003) . The statistical tests are invalid for 

 reasons given above; however, it appears that the treatment had 

 opposite effects at the two sites. 



LITERATURE CITED 



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Lesica, P. 1992. Vascular and sensitive plant species inventory 

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Lesica, P. and J. S. Shelly. 1992. The effects of cryptogamic 

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