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Methodological variability in microbial community level physiological profiles

^a Dep. of Soil Science, 1525 Observatory Dr., Univ. of Wisconsin-Madison, Madison, WI 53706
^b Dep. of Earth and Planetary Science, Univ. of California, Berkeley, CA 94720
^c Dep. of Environmental Science, Policy, and Management, Univ. of California, Berkeley, CA 94720

View larger version (13K): [in a new window]   Fig. 1. Ordinate plot from principal components analysis on BiOLOG data from the grassland site, showing the profile from intact soil compared with that from the particulate and supernatant microbial communities in the soil. The ANOVA with the first principal component (PC1) as the dependent variable and community type as independent has an R2 = 0.413 (P < 0.025). The community types do not separate out significantly along the second principal component (PC2) by community type.