skip to main content
Idioma:
Primo Search
Clear Search Box
Search in: Busca Geral
Busca Avançada
Busca por Índices
Tipo de recurso Mostra resultados com: Mostra resultados com: Índice

Shift of song frequencies in response to masking tones

Goodwin, Sarah E. ; Podos, Jeffrey

Animal behaviour, 2013-02, Vol.85 (2), p.435-440 [Periódico revisado por pares]

London: Elsevier Ltd

Texto completo disponível

Citações Citado por
  • Título:
    Shift of song frequencies in response to masking tones
  • Autor: Goodwin, Sarah E. ; Podos, Jeffrey
  • Assuntos: Acoustics ; Animal behavior ; Animal communication ; Apoidea ; Birds ; black-capped chickadee ; communication ; field experimentation ; frequency ; interference ; males ; masking ; Noise ; overlap ; plasticity ; Poecile atricapillus ; song
  • É parte de: Animal behaviour, 2013-02, Vol.85 (2), p.435-440
  • Notas: http://dx.doi.org/10.1016/j.anbehav.2012.12.003
  • Descrição: Ambient noise can interfere with signal transmission and detection across many taxa and modalities. Evidence suggests that, over time, signals evolve to minimize interference from ambient noise and other signalling animals. Less well studied is the possibility of short-term behavioural responses to transient ambient noise, in which animals actively adjust signal parameters to recover signalling efficacy. Here we test animals' capacity to adjust vocal signal parameters in the face of transient acoustic interference. In field trials we monitored the songs of territorial male black-capped chickadees, Poecile atricapillus, determined the frequencies of their ‘fee-bee’ songs, and broadcast tones to closely mask subjects' ‘bee’ notes. We also presented control nonmasking tones of 5kHz, well above birds' song frequencies. Our main finding was that males responded to masking tones by shifting song frequencies after an average of 66.4s from tone onset, whereas frequency shifts in the presence of nonmasking tones occurred only after an average of 95.8s. The quicker shift in frequencies in the face of masking noise provides new evidence for vocal behavioural plasticity, and further reveals how behavioural plasticity together with evolutionary adaptations can minimize the detrimental effects of ambient noise on communication. ► We investigated song plasticity in wild black-capped chickadees. ► We presented males with tones that either overlapped their songs (masking) or were outside their singing range (control). ► Chickadees shifted their song frequencies more quickly in the presence of masking tones as compared to control tones. ► Chickadees can modulate their singing behaviour in response to the sound environment.
  • Editor: London: Elsevier Ltd
  • Idioma: Inglês
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.