Vocal convergence and social proximity shape the calls of the most basal Passeriformes, New Zealand Wrens.

Autor: Moran IG; School of Biological Sciences, University of Auckland, Auckland, 1142, Aotearoa New Zealand. inesmoran.publications@gmail.com.; Centre for Biodiversity and Biosecurity, University of Auckland, Auckland, 1142, Aotearoa New Zealand. inesmoran.publications@gmail.com., Loo YY; School of Biological Sciences, University of Auckland, Auckland, 1142, Aotearoa New Zealand.; Centre for Biodiversity and Biosecurity, University of Auckland, Auckland, 1142, Aotearoa New Zealand., Louca S; Department of Biology, University of Oregon, Eugene, 97403-1210, OR, USA., Young NBA; Centre for eResearch, University of Auckland, Auckland, 1142, Aotearoa New Zealand., Whibley A; School of Biological Sciences, University of Auckland, Auckland, 1142, Aotearoa New Zealand., Withers SJ; School of Biological Sciences, University of Auckland, Auckland, 1142, Aotearoa New Zealand., Salloum PM; Department of Zoology, University of Otago, Dunedin, 9016, Aotearoa New Zealand., Hall ML; School of BioSciences, University of Melbourne, Melbourne, VIC, 3010, Australia.; Bush Heritage Australia, Melbourne, VIC, 3000, Australia.; School of Biological Sciences, University of Western Australia, Perth, WA, 6009, Australia., Stanley MC; School of Biological Sciences, University of Auckland, Auckland, 1142, Aotearoa New Zealand.; Centre for Biodiversity and Biosecurity, University of Auckland, Auckland, 1142, Aotearoa New Zealand., Cain KE; School of Biological Sciences, University of Auckland, Auckland, 1142, Aotearoa New Zealand.; Centre for Biodiversity and Biosecurity, University of Auckland, Auckland, 1142, Aotearoa New Zealand.
Jazyk: angličtina
Zdroj: Communications biology [Commun Biol] 2024 May 15; Vol. 7 (1), pp. 575. Date of Electronic Publication: 2024 May 15.
DOI: 10.1038/s42003-024-06253-y
Abstrakt: Despite extensive research on avian vocal learning, we still lack a general understanding of how and when this ability evolved in birds. As the closest living relatives of the earliest Passeriformes, the New Zealand wrens (Acanthisitti) hold a key phylogenetic position for furthering our understanding of the evolution of vocal learning because they share a common ancestor with two vocal learners: oscines and parrots. However, the vocal learning abilities of New Zealand wrens remain unexplored. Here, we test for the presence of prerequisite behaviors for vocal learning in one of the two extant species of New Zealand wrens, the rifleman (Acanthisitta chloris). We detect the presence of unique individual vocal signatures and show how these signatures are shaped by social proximity, as demonstrated by group vocal signatures and strong acoustic similarities among distantly related individuals in close social proximity. Further, we reveal that rifleman calls share similar phenotypic variance ratios to those previously reported in the learned vocalizations of the zebra finch, Taeniopygia guttata. Together these findings provide strong evidence that riflemen vocally converge, and though the mechanism still remains to be determined, they may also suggest that this vocal convergence is the result of rudimentary vocal learning abilities.
(© 2024. The Author(s).)
Databáze: MEDLINE
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