Fig. 2: Some plant genera are disproportionately important for supporting host plant- Lepidoptera interaction networks.
From: Few keystone plant genera support the majority of Lepidoptera species

a Mean importance scores for the top 20 plant genera (plants with the highest scores that are also present in three or more counties) and all other plants combined. Importance scores were calculated as the standardized rank score that combined (1) the number of Lepidoptera species hosted, (2) the number of specialized Lepidoptera species supported (species that only use one plant genus), and (3) the effect on network stability. b Mean importance scores for the 198 woody plant genera that support at least one Lepidoptera species included in the keystone plant network analysis. 10 plant genera were identified as outliers (>1.5* interquartile range). Plant genera not known to support any Lepidoptera species were excluded from this graph (n = 90). All box plots show the median (center line), first and third quartile (upper and lower hinges), and 1.5 * interquartile range (whiskers).