Figure 2

Relative soil concentrations of elements that differed between the investigated metalliferous (M, black) and non-metalliferous (NM, grey) sites of Arabidopsis halleri. Each of these elements had a significantly different concentration in both metalliferous sites compared to both non-metalliferous sites (one-way ANOVA, P < 0.001). The outer perimeter indicates the maximum and the central perimeter the minimum value per indicated element.