Within the Materials and Methods, there is an error in the hand-wing index equation in the section titled "Morphological data." The published article incorrectly refers to the secondary length (SL) when intending to refer to the wing length (WL) in the denominator. Please view the complete, correct equation here: hand-wing index = 100 x (WL − SL)/WL
Reference
- 1.Smith BT, Seeholzer GF, Harvey MG, Cuervo AM, Brumfield RT (2017) A latitudinal phylogeographic diversity gradient in birds. PLoS Biol 15(4): e2001073 doi:10.1371/journal.pbio.2001073 [DOI] [PMC free article] [PubMed] [Google Scholar]