When surveying 70 m 2, the species accumulation curve is still steep (Fig. 3), but when we extrapolate to a 210 effort, it begins to stabilize (Fig. 4). Using the Col well et al. (2012, Eq. (20)) sample based extrapolation, we estimated that to collect 80% of the asymptotic richness, we would need 100 plots, and 195 plots to collect 90%of the asymptotic richness, which seems to be a realistic sampling effort.