Data from: Transcontinental latitudinal variation in song performance and complexity in House Wrens (Troglodytes aedon)

We circumvent these limitations using a transcontinental sample of 358 songs from House Wrens (Troglodytes aedon) at 281 locations spanning more than 100O of latitude (52 O N - 55 O S) across the Americas. We found a significant latitudinal gradient in several basic elements of song performance and complexity between north temperate and tropical populations. Further, we document convergence in song patterns between populations at higher latitudes in the northern and southern hemispheres.

Effects were strongest for the number of elements in a song, and the rate of element production, both increasing towards the poles, with similar but weaker effects for other song dimensions (e.g., number of unique elements, trills, and trill rate). We consider possible causes related to variable habitats and morphology, concluding that the shorter breeding seasons at higher latitudes in both hemispheres may favor greater song elaboration to mediate territory competition and mate choice.

Usage notes

Transcontinental latitudinal variation in House Wren songs-Data set Data set used for analysis of latitudinal variation in complexity and performance measures of House Wren songs. This contains data of 358 male House Wren songs collected from 281 locations across Americas. Songs were analysed using Praat.

Statistical analysis was done using SPSS 23. Kaluthotaetal.xlsx