Acoustic variation in alarm calls of Corvidae-effect of morphology, ecology and phylogeny.

ABSTRACT: Bioacoustic parameters of vocalization are generally well adapted to the environment that the species inhabits and are influenced by the morphology and life history of the species. These effects are frequently studied on bird songs; however, little is known about how ecology, phylogeny and morphology affect alarm calls. We investigated these factors in the crow family (Corvidae, Passeriformes) that exhibits extensive distribution around the world and is well known for their variable, conspicuous alarm calls. Using a free database of sounds (xeno-canto) as well as own recordings, we collected alarm calls of 66 species representing 21 out of 24 genera within the family. We measured four vocal characteristics, which showed high variability among the family and low mutual correlation - peak fr

SUBMITTER: Kovarova E 

PROVIDER: S-EPMC12549722 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature