FIG. 5.
Chao1 richness estimates of Area 2 soil bacterial communities based on clone library sampling. Richness estimates were made using a 99% sequence homology group classification equivalent to array-defined OTUs. The dashed gray line denotes the mean number of OTUs detected by array in Area 2 samples. The dashed black line denotes the number of OTUs detected by clone sequence analysis in Area 2 samples.
