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Independent evolution of song diversity and song motor performance in canaries, goldfinches and allies indicates clade-specific trade-offs in birdsong

Cardoso, Gonçalo C. ; Abreu, João M. ; Archer, John ; Crottini, Angelica ; Mota, Paulo G.

Evolution, 2020-06, Vol.74 (6), p.1170-1185 [Periódico revisado por pares]

United States: Wiley

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Título:
Independent evolution of song diversity and song motor performance in canaries, goldfinches and allies indicates clade-specific trade-offs in birdsong
Autor: Cardoso, Gonçalo C. ; Abreu, João M. ; Archer, John ; Crottini, Angelica ; Mota, Paulo G.
Assuntos: Acoustic communication ; Animals ; Biological Evolution ; Birds ; birdsong ; Body size ; Canaries - genetics ; clade‐specific evolutionary trade‐offs ; Evolution ; Frequency dependence ; Frequency modulation ; Intervals ; motor performance ; Motor task performance ; ORIGINAL ARTICLE ; Performance evaluation ; Phylogeny ; Psychomotor Performance ; sexual signals ; Sleep deprivation ; Song ; Species ; syllable diversity ; Syllables ; Vocalization, Animal
É parte de: Evolution, 2020-06, Vol.74 (6), p.1170-1185
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: The diversity and the motor performance of birdsongs can both be sexually selected. In wood warblers, most species with high motor performance sing a greater proportion of trills, presumably to advertise performance, and thus have lower syllable diversity. We tested if this trade-off between motor performance and syllable diversity extends to canaries, goldfinches and allies, a clade with much longer and more varied songs. We assembled a molecular phylogeny and inferred song motor performance based on the speed of frequency modulation either in trills or in within-song intervals. The two metrics of performance were positively, but only mildly, related across species. While performance evaluated in intervals had high phylogenetic signal, performance evaluated in trills changed independently of phylogeny and was constrained by body size. Species in densely vegetated habitats sang fewer trills, but did not differ in motor performance. Contrary to wood warblers, song motor performance did not predict the proportion of trilled syllables nor within-song syllable diversity, perhaps because large differences in the song duration of canaries, goldfinches and allies prevent trills from severely compromising syllable diversity. Opposed results in wood warblers and in these finches indicate the existence of clade-specific trade-offs in the evolution of birdsong.
Editor: United States: Wiley
Idioma: Inglês

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Independent evolution of song diversity and song motor performance in canaries, goldfinches and allies indicates clade-specific trade-offs in birdsong

Cardoso, Gonçalo C. ; Abreu, João M. ; Archer, John ; Crottini, Angelica ; Mota, Paulo G.

United States: Wiley

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