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. 2015 Dec 22;6:1457. doi: 10.3389/fmicb.2015.01457

FIGURE 3.

FIGURE 3

Non-metric multidimensional scaling (NMDS) plot of Bray–Curtis dissimilarities between groundwater communities and vector fitting of hydrogeochemical variables to community ordination. Arrows represent fitted hydrogeochemical variables with p ← 0.001. Recent groundwater samples are represented by closed symbols and old groundwater samples by open symbols. Abbreviations: B-R, Betton-Recent; P-R1, Ploemeur-Recent 1; P-R2, Ploemeur-Recent 2; SB-O1, Saint-Brice-Old 1; SB-O2, Saint-Brice-Old 2; B-O, Betton-Old; Fe(total), total disssolved iron.