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Fig. 1. (a) Redundancy analysis of polar lipid fatty acid (PLFA) abundance from transects away from four shrubs (a, b, c, d). Distance from the shrub main stem is shown as 0, 1, 2, or 3. Each point represents three replicate PLFA analyses. Ellipses identify samples collected at equal distances from shrubs. (b) Redundancy analysis for PLFA variables. Fatty acids that lie close to samples in plot (a) above if plot origins were superimposed would probably have a high relative abundance in those samples.
