Community algorithms reveal song type themes in Adelaide’s warbler song type sequence networks

Bioacoustics, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 16

Published: Feb. 6, 2025

Language: Английский

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Sex differences in song syntax and syllable diversity in testosterone-induced songs of adult male and female canaries

Biology of Sex Differences, Journal Year: 2023, Volume and Issue: 14(1)

Published: Aug. 1, 2023

Behavioral sex differences are widespread in the animal world. These can be qualitative (i.e., behavior present one but not other, a true dimorphism) or quantitative (behavior is at higher rate quality compared to other). Singing oscine songbirds associated with both types of differences. In canaries, female rarely sing spontaneously they induced do so by treatments steroids. Song these females is, however, fully masculinized and exhibits relatively subtle as male song. We analyzed here syllable content use between singing canaries. Songs were recorded from three groups castrated photoregressed canaries that had received Silastic™ implants filled testosterone (T), T plus estradiol (E2), left empty (control). After 6 weeks hormone treatment, 30 songs each 47 subjects. segmented was annotated. Various metrics diversity extracted network analysis employed characterize sequences. Male characterized marked related use. Compared females, males larger syllable-type repertoire their contained more types. Network sequences showed follow fixed patterns transitions than females. Both sexes, produced song same duration containing number syllables similar rates (numbers per second). Under influence T, sexes able produce generally vocalizations nevertheless differ specific ways. The development during ontogeny appears very sophisticated process presumably based on genetic endocrine mechanisms also learning processes. data highlight importance detailed behavioral analyses identify many dimensions

Language: Английский

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Using networks to visualize, analyse and interpret multimodal communication

Animal Behaviour, Journal Year: 2023, Volume and Issue: 207, P. 295 - 317

Published: Nov. 30, 2023

Language: Английский

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Anthropogenic noise, song, and territorial aggression in southern house wrens

Journal of Avian Biology, Journal Year: 2021, Volume and Issue: 52(10)

Published: Sept. 14, 2021

Anthropogenic noise constrains the transmission of birdsong and alters behavior receivers. Many birds adjust their acoustic signals to minimize interference anthropogenic on signal transmission. Birds may also change exchange information during aggressive interactions. However, it is unclear how deal with a potential trade‐off between adjusting better transmit in noisy environments versus mediating Additionally, we do not know urbanization territorial We investigated interplay among song, aggression, urbanization, noise, males southern house wren Troglodytes aedon musculus , using recordings spontaneous songs (non‐aggressive context) playback experiment simulating male intrusion (aggressive context). found that urban wrens behaved more aggressively response intruder by singing spent time closer than rural regardless noise. Males produced lower minimum frequency trills wider bandwidth higher vocal performance under acute (playback) relaxed (post‐playback) encounters. These results suggest use communicate intent or fighting ability. Urban higher‐pitched irrespective context. noisiest territories highest‐pitched but only non‐aggressive Rural tended produce longest shortest Results affects behaviors wrens. this species seem primarily rather

Language: Английский

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

Marine Mammal Science, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 25, 2024

Abstract Song evolution and revolution events recorded through time are typical cultural features for humpback whale ( Megaptera novaeangliae ) populations worldwide. However, it is unknown if song dynamics equivalent among subpopulations or breeding stocks of the South Pacific Ocean. To contribute to understanding temporal off coast Ecuador, we analyzed acoustic richness repertoire composition based on unit, phrase, over consecutive seasons from 2012 2019. We observed incomplete revolutions (all themes were replaced except one) a nonsignificant variation in during study period. Our results show that years, singers incorporate material different such as Central (French Polynesia) western Atlantic (Brazil) into their repertoire. The contact migrating eastern may be reflected particular evolution. Off patterns point towards an alternative scenario evolution, indicating how transmission can alter specific grounds due lack geographical barriers surrounding southeastern region.

Language: Английский

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Testosterone treatment reveals marked sex differences in song diversity and syllable syntax in adult canaries

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: April 11, 2023

Background. Behavioral sex differences are widespread in the animal world. These can be qualitative (i.e., behavior present one but not other, a true dimorphism) or quantitative (behavior is at higher rate quality compared to other). Singing oscine songbirds associated with both types of differences. In canaries, female rarely sing spontaneously they induced do so by treatments steroids. Song these females however fully masculinized and exhibits relatively subtle as male song. We analyzed here syllable content use between singing canaries. Methods. Songs were recorded from 3 groups castrated photoregressed canaries that had received Silasticâ"¢ implants filled testosterone (T), T plus estradiol (E2), left empty (control). After 6 weeks hormone treatment, 30 songs each 47 subjects. segmented was annotated. Various metrics diversity extracted network analysis employed characterize sequences. Results. Male characterized marked related use. Compared females, males larger type repertoire their contained more types. Network sequences showed follow fixed patterns transitions than females. Both sexes produced song same duration containing number syllables similar rates (numbers per second). Conclusions. Under influence able produce generally vocalizations nevertheless differ specific ways. The development during ontogeny appears very sophisticated process presumably based on genetic endocrine mechanisms also learning processes. data highlight importance detailed behavioral analyses order identify many dimensions

Language: Английский

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Song repertoires, song type sharing, and sharing of preferred song transitions in male Bachman's Sparrows (Peucaea aestivalis)

The Wilson Journal of Ornithology, Journal Year: 2022, Volume and Issue: 134(3)

Published: Sept. 29, 2022

Los gorriones Peucaea aestivalis tienen repertorios de canto inusualmente grandes entre los del Nuevo Mundo. La respuesta a preguntas sobre su función, evolución y desarrollo requiere descripciones completas dichos en múltiples poblaciones. Aquí cuantificamos el tamaño repertorio, intercambio tipos secuencias —en específico, transiciones preferidas— cantos primarios al interior 2 poblaciones este gorrión extremos noreste sureste rango reproductivo esta especie. Grabamos 20 machos North Carolina (NC) 18 Florida (FL). El promedio repertorio fue 48–49 ambas Dentro cada población, compartieron muchos canto, con 80% traslape cualquiera NC 49% FL. Estos compartidos la población independiente distancia territorios machos. secuencia que cantaron diferentes no estereotipado o aleatorio, las preferidas fueron compartidas por todos mayoría (FL) pares Las tampoco estuvieron correlacionadas territorios, lo sugiere aves ajustan sus edad adulta para concordar más cercanamente vecinos territorio. función ontogenia características documentamos aquí —repertorios gran parte nos invitan realizar estudios. Palabras clave: bioacústica, aves, Passerellidae, vocales, variación especial.

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Song structure of male Northern House Wrens and patterns of song production and delivery across the nesting cycle

Journal of Ornithology, Journal Year: 2023, Volume and Issue: 165(1), P. 203 - 216

Published: Aug. 27, 2023

Language: Английский

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