Visual courtship displays in birds are thought to play a similar role in mating, but, unlike birdsong, there is a lack of empirical evidence regarding the effects of within- and between- individual differences in visual displays on reproductive outcomes. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist.īird song is considered a classic example of a sexually selected behaviour, and is related to reproductive success. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: Data are available from the Dryad Digital Repository (doi: 10.5061/dryad.s6v4p).įunding: The work was supported by Japan Society for the Promotion of Science Grants-in-Aid for Young Scientists (Nos. Received: NovemAccepted: FebruPublished: March 8, 2017Ĭopyright: © 2017 Soma, Iwama. Etges, University of Arkansas, UNITED STATES These results conflict with the majority of past songbird research, which has interpreted songs as primary behavioural sexual signals.Ĭitation: Soma M, Iwama M (2017) Mating success follows duet dancing in the Java sparrow. This finding highlights an unexplored aspect of duetting behaviour in the process of mutual mate choice. Most females produced CSDs after duet dancing but before hearing the entire song, indicating that duet dancing played a crucial role in mating. However, the sex initiating the courtship did not affect mating success. In the current study, we observed higher mating success when courtship dances were mutually exchanged, and when males sang. These dances are typically terminated by female copulation solicitation displays (CSDs). However, both males and females perform courtship dances, often in a duet-like manner. When Java sparrows ( Lonchura oryzivora) court prospective mates, only males sing. The current study evaluated mutual interactions in an Estrildid species to explore the relative importance of duet dancing and male singing in mating success of pairs in a first encounter. Coordinated visual displays of mating pairs are thought to perform similar functions, but are less well understood. Duet singing in songbirds is related to mutual mate guarding, joint resource defence, and signalling commitment. Mutual interactions between sexes have multiple signalling functions.
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