Acoustic richness and composition changes of humpback whale (Megaptera novaeangliae) songs on breeding grounds off the coast of Ecuador

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dc.contributor.authorOña, Javier
dc.contributor.authorDenkinger, Judith
dc.contributor.authorSchall, Elena
dc.date.accessioned2026-10-22T17:53:28Z
dc.date.available2026-10-22T17:53:28Z
dc.date.issued2025
dc.description.abstractSong evolution and revolution events recorded throughtime are typical cultural features for humpback whale(Megaptera novaeangliae) populations worldwide. However,it is unknown if song dynamics are equivalent among sub-populations or breeding stocks of the South Pacific Ocean.To contribute to the understanding of the temporal songdynamics of humpback whale song off the coast ofEcuador, we analyzed acoustic richness and repertoire com-position based on unit, phrase, and song composition overconsecutive breeding seasons from 2012 to 2019. Weobserved incomplete song revolutions (all themes were rep-laced except one) and a nonsignificant variation in theacoustic richness during the study period. Our results showthat over the years, humpback whale singers incorporateacoustic material from different subpopulations such asCentral South Pacific (French Polynesia) and western SouthAtlantic (Brazil) into their song repertoire. The temporalacoustic contact of different subpopulations migratingthrough the eastern South Pacific may be reflected in theirparticular acoustic richness and temporal evolution. Off thecoast of Ecuador, humpback whale song patterns pointtowards an alternative scenario of song evolution, indicatinghow cultural transmission among subpopulations can alterthe song patterns in specific breeding grounds due lack ofgeographical barriers surrounding the southeastern Pacificregion.
dc.description.sponsorshipGalera San Francisco Reserve; Ocean Acoustics Group of the AWI; Rufford Foundation: Universidad San Francisco de Quito (USFQ); Professional Development Grant from WWF's Russel E. Train Education for Nature Program (EFN) 010-2013-IC-FLO-FAU-DPE-MA, MAE-DPAE-2014-0723, MAE-DPAE-2016-0850, Water and Ecological Transition Ministry, Ecuador (MAATE)
dc.identifier.doi10.1111/mms.13208
dc.identifier.issn0824-0469
dc.identifier.urihttps://repositorioabierto.uantof.cl/handle/uantof/797
dc.language.isoen
dc.publisherWiley
dc.relation.urihttps://onlinelibrary.wiley.com/doi/epdf/10.1111/mms.13208?getft_integrator=clarivate&src=getftr&utm_source=clarivate
dc.rights© 2024 Society for Marine Mammalogy
dc.sourceMarine Mammal Science
dc.subjectcultural transmission
dc.subjectEcuadorian coast
dc.subjecthumpback whale
dc.subjectsong patterns
dc.subjectsoutheastern Pacific region
dc.titleAcoustic richness and composition changes of humpback whale (Megaptera novaeangliae) songs on breeding grounds off the coast of Ecuador
dc.typeArticle
oaire.citation.volume41
oaire.citationIssue2
organization.identifier.rorUniversidad de Antofagasta
organization.legalNameUniversidad de Antofagasta
uantof.identificator.facultyFacultad de Ciencias del Mar y Recursos Biológicos
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