Range overlap between the sword-billed hummingbird and its guild of long-flowered species: An approach to the study of a coevolutionary mosaic - Fig 4

Relationship between 51 records of (A) bill length and (B) species richness of the long-flowered guild of plants with latitude. Shaded bands represent 95% confidence intervals around the solid line. Distribution of the values of (C) bill length and (D) richness across five latitudinal ranges.