Fig. 2
From: Age- and environment-dependent changes in chemical defences of larval and post-metamorphic toads
Number of bufadienolide compounds of common toad hatchlings, tadpoles and post-metamorphs during ontogeny (N = 199). Letters above boxplots indicate homogeneous subsets according to pairwise comparisons corrected for false discovery rate. In each boxplot, the thick horizontal line and the box represent the median and the interquartile range, respectively; whiskers extend to the upper and lower quartile ±1.5 × interquartile range; open circles represent outliers. Statistics for pairwise comparisons can be found in Additional file 1: Table S2