Figure 3: Interplot, intraplot, and temporally driven variance
in light penetration (calculated as 100 × ground-level light
intensity/above canopy light intensity; µmol s-1n-2). To quantify intraplot variation, variance was
calculated within each plot for each month (N=147, median=26.2). For
interplot variation, mean light penetration was calculated for each
plot, and variance in these means was calculated for each month (N=3,
median=77.3). Temporal variation was also quantified using mean light
penetration for each plot. Variance in individual plot means across
months (June, July, August) were calculated (N=49, median=57.4). Boxes
represent the 25th to 75th percentiles of the data, and whiskers
represent the 10th and 90th percentiles.