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Songbird tap dancing produces non-vocal sounds

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タイトル: Songbird tap dancing produces non-vocal sounds
著者: Ota, Nao 著作を一覧する
Gahr, Manfred 著作を一覧する
Soma, Masayo 著作を一覧する
キーワード: Multimodal communication
mutual courtship display
socially monogamous songbird
Estrildid finch
sound amplitude
発行日: 2017年 5月 4日
出版者: Taylor & Francis
誌名: Bioacoustics : the international journal of animal sound and its recording
巻: 26
号: 2
開始ページ: 161
終了ページ: 168
出版社 DOI: 10.1080/09524622.2016.1231080
抄録: Vocalizations have been elucidated in previous songbird studies, whereas less attention has been paid to non-vocal sounds.In the bluecapped cordon-bleu (Uraeginthus cyanocephalus), both sexes perform courtship displays that are accompanied by singing and distinct body movements ( previous study revealed that their courtship bobbing includes multiple rapid steps.This behaviour is quite similar to human tap dancing, because it can function as both visual and acoustic signals.To examine the acoustic signal value of such steps, we tested if their high-speed step movements produce non-vocal sounds that have amplitudes similar to vocal sounds. We found that step behaviour affected step sound amplitude. Additionally, the dancing step sounds were substantially louder than feet movement sounds in a non-courtship context, and the amplitude range overlapped with that of song notes.These results support the idea that in addition to song cordon-bleus produce acoustic signals with their feet.
Rights: This is an Accepted Manuscript of an article published by Taylor & Francis in Bioacoustics on May 2017, available online:
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 相馬 雅代


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