10.1371/journal.pone.0081023.g005 Lee E. Brown Lee E. Brown Kerrylyn Johnston Kerrylyn Johnston Sheila M. Palmer Sheila M. Palmer Katie L. Aspray Katie L. Aspray Joseph Holden Joseph Holden (a) NMDS biplot of samples and significantly correlated environmental variable vectors (pH: R<sup>2</sup>=0.43, p=0.001; NO<sub>3</sub>: R<sup>2</sup>=0.20, p=0.014; Al: R<sup>2</sup>=0.27, p=0.001; Ca: R<sup>2</sup> = 0.39, p=0.001; Fe: R<sup>2</sup>=0.27, p=0.003; Mn: R<sup>2</sup>=0.46, p=0.001; Si: R<sup>2</sup>=0.42, p=0.001), and (b) taxa. Public Library of Science 2013 nmds biplot samples correlated vectors 2013-11-21 03:07:36 Figure https://plos.figshare.com/articles/figure/_a_NMDS_biplot_of_samples_and_significantly_correlated_environmental_variable_vectors_pH_R_2_0_43_p_0_001_NO_3_R_2_0_20_p_0_014_Al_R_2_0_27_p_0_001_Ca_R_2_0_39_p_0_001_Fe_R_2_0_27_p_0_003_Mn_R_2_0_46_p_0_001_Si_R_2_0_42_p_0_001_and_b_taxa_/859124 <p>(a) NMDS biplot of samples and significantly correlated environmental variable vectors (pH: R<sup>2</sup>=0.43, p=0.001; NO<sub>3</sub>: R<sup>2</sup>=0.20, p=0.014; Al: R<sup>2</sup>=0.27, p=0.001; Ca: R<sup>2</sup> = 0.39, p=0.001; Fe: R<sup>2</sup>=0.27, p=0.003; Mn: R<sup>2</sup>=0.46, p=0.001; Si: R<sup>2</sup>=0.42, p=0.001), and (b) taxa.</p>