Figure 3

Impacts of elevated CO2 on pollen nutrition in Experiment 2. Pollen nutrition (both rounds pooled) from experiment 2 including %N (a), %C (b), and C:N ratio (c) for all studied plant species. Model details are in Table 2 with effect size and post-hoc comparisons in Tables S5 and S6, respectively. Significant differences between CO2 treatments are marked with a red asterisk (*).