A global analysis of song frequency in passerines provides no support for the acoustic adaptation hypothesis but suggests a role for sexual selection
P. Mikula, M. Valcu, H. Brumm, M. Bulla, W. Forstmeier, T. Petruskova, B. Kempenaers, T. Albrecht
This study analyzes song frequency in 5,085 passerine species and finds no support for the acoustic adaptation hypothesis but links song frequency to body size and sexual selection.
bioRxiv · Jun 30, 2020Evolutionary Biology