Fig. 3: Visualization of the main three-dimensional fungal economics space in saprobic fungal isolates based on functional traits.

a Heatmap visualization of the main principal component analysis (PCA, Fig. S5), with loadings of individual traits on PC axes being displayed, as well as their groupings (shown as correlogram based on hierarchical cluster analyses of loadings). The column width corresponds to the eigenvalues of PC axes (insignificant axes are shown in gray scales), asterisks indicate significant loadings of traits on respective axes (based on PCAtest⁹³). Red colors indicate negative, blue colors positive loadings, with color intensity referring to respective loading values. The clustering groups of traits reflect their loadings on varimax rotated components (RC), highlighted by gray squares. Fungal economics space defined by PCA followed by varimax rotation, showing the rotated components (RC) RC1 and 2 (b) and RC2 and 3 (c). Arrows represent eigenvectors of traits on RC axes, dots individual isolates (shapes of dots indicate phylogenetic placement). For details on functional traits see Fig. 1 and Table S1; abbreviations are given in Figs. 1 and 2).