Distance-based redundancy analysis (Bray-Curtis distance) ordination on grassland and alien species on 67 plots in electric power line corridors.

<p>Panels A and B show only the plots and panels C and D the 20 environmental features used as explanatory variables. Red arrows indicate statistically significant variables after 500 permutations. For abbreviations, see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0142236#pone.0142236.t001" target="_blank">Table 1</a>.