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. 2020 Jul 31;11:1154. doi: 10.3389/fpls.2020.01154

Figure 4.

Figure 4

Richness of VOCs in the floral scents of plant species pollinated by insects (N = 221), birds (N = 21), and bats (N = 13): (A) total VOC richness, (B) fatty acid derivative richness, (C) benzenoid richness, (D) monoterpene richness, (E) terpenoid richness, (F) nitrogen-containing compound richness, and (G) sulphur-containing compound richness. Error bars indicate standard errors of the means. Different letters indicate significant differences between groups (Kruskal-Wallis test, α = 0.0056).