Figure 2

Shannon Evenness based on the aggregated transect data for each study site by treatment and year fitted with a trend line. Higher values indicate higher plant diversity within each treatment. The treatment abbreviations are as follows: those beginning with C are Cache Creek, and M are Mokelumne River; followed by the treatment codes of C = control, FB = fall burn, SPB = spring burn, and SUB = summer burn; and calendar year (2002–2005).