Fig. 1: Temperature-induced trophic cascade.
From: Warming indirectly simplifies food webs through effects on apex predators

a,b, There was a reduction in the biomass of invertebrates over the course of the experiment (n = 60 biologically independent samples) (a) and a corresponding increase in the total biomass of diatoms (n = 56 biologically independent samples), but only in the presence of fish in the warm streams (b). Bars are mean ± standard error; for statistical comparisons between treatments, see Table 2; for a visualization of biomasses in each treatment before and after the experimental manipulation, see Supplementary Fig. 5.