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Tap dancing birds: the multimodal mutual courtship display of males and females in a socially monogamous songbird
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| Title: | Tap dancing birds: the multimodal mutual courtship display of males and females in a socially monogamous songbird |
| Authors: | Ota, Nao Browse this author | | Gahr, Manfred Browse this author | | Soma, Masayo Browse this author →KAKEN DB |
| Issue Date: | 19-Nov-2015 |
| Publisher: | Nature Publishing Group |
| Journal Title: | Scientific reports |
| Volume: | 5 |
| Start Page: | 16614 |
| Publisher DOI: | 10.1038/srep16614 |
| Abstract: | According to classical sexual selection theory, complex multimodal courtship displays have evolved in males through female choice. While it is well-known that socially monogamous songbird males sing to attract females, we report here the first example of a multimodal dance display that is not a uniquely male trait in these birds. In the blue-capped cordon-bleu (Uraeginthus cyanocephalus), a socially monogamous songbird, both sexes perform courtship displays that are characterised by singing and simultaneous visual displays. By recording these displays with a high-speed video camera, we discovered that in addition to bobbing, their visual courtship display includes quite rapid step-dancing, which is assumed to produce vibrations and/or presumably non-vocal sounds. Dance performances did not differ between sexes but varied among individuals. Both male and female cordon-bleus intensified their dance performances when their mate was on the same perch. The multimodal (acoustic, visual, tactile) and multicomponent (vocal and non-vocal sounds) courtship display observed was a combination of several motor behaviours (singing, bobbing, stepping). The fact that both sexes of this socially monogamous songbird perform such a complex courtship display is a novel finding and suggests that the evolution of multimodal courtship display as an intersexual communication should be considered. |
| Rights: | http://creativecommons.org/licenses/by-nc-sa/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/60444 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 相馬 雅代
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