Species richness

Number of Species in Plot

Site Invasive Non-Invasive Total
All Plots (n=18)
Treated 5.0 2.4 7.4
Control 4.6 2.6 7.2
1991 disturbance (n=12)
Treated 4.6 2.5 7.1
Control 4.4 2.8 7.2
1993 disturbance (n=6)
Treated 5.8 2.2 8.0
Control 4.8 2.2 7.0

Table 2: Comparison of average numbers of invasive and non-invasive species for the plots broken down into two categories: treatment vs. control plots and 1991 disturbance vs. 1993 disturbance plots. None were significantly different (P > 0.05).


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