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首页> 外文期刊>Animal behaviour >Functions of duetting in the tropical boubou, Laniarius aethiopicus: territorial defence and mutual mate guarding
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Functions of duetting in the tropical boubou, Laniarius aethiopicus: territorial defence and mutual mate guarding

机译：在热带boubou，aethiopicus中二重奏的功能：领土防御和相互伴侣保护

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摘要

Duetting, found in many animal taxa, is still a poorly understood form of signalling behaviour despite numerous hypotheses to explain its function. One contentious issue is whether duetting is a cooperative endeavour or signals conflict between the sexes. We studied the function of duetting in the tropical boubou, using interactive playback experiments. We staged encounters by presenting paired birds with four variants of each of four duet types (neighbour and stranger solos and neighbour and stranger duets). Multiple lines of evidence suggest that both joint territorial defence and mutual mate guarding are important functions of duetting, and that both cooperation and conflict between males and females have shaped duetting behaviour. Of a repertoire of 12 duet types, eight were used for joint territorial defence. Two of these eight duet types were probably also used for mutual mate guarding, suggesting that individual duets can have multiple functions. We found an unusual response for duetting birds in that females often synchronized notes with male solo playback to form precise duets. In turn, males attempted to jam the song of rivals when females joined the song of male solo playback, providing further evidence for the importance of acoustic mate guarding. Song jamming by males has not previously been described for duetting species. Finally, we suggest that the repertoire of duet types is used to fine-tune territorial encounters in a network environment of multiple interactants.
机译：尽管存在许多假说来解释其功能，但在许多动物类群中发现的二重竞争仍然是人们对信号行为的一种鲜为人知的形式。一个有争议的问题是二重奏是一种合作努力，还是表明两性之间存在冲突。我们使用互动播放实验研究了热带boubou中二重唱的功能。我们通过呈现成对的鸟类以及四种二重体类型（邻居和陌生人独奏以及邻居和陌生人二重奏）中的每一种的四个变体来进行相遇。多方面的证据表明，共同的领土防御和相互的配偶守卫都是双人比赛的重要功能，而男女之间的合作与冲突都影响了双人比赛的行为。在12种二重唱类型的曲目中，有8种用于联合领土防御。这八种二重唱类型中的两种可能还用于相互配合，这表明单个二重唱可以具有多种功能。我们发现二重鸟类的反应很不正常，因为雌性经常将音符与雄性独奏同步，以形成精确的二重奏。反过来，当雌性加入雄性独奏播放的歌曲时，雄性试图阻塞对手的歌曲，这为保护声音伴侣提供了进一步的证据。以前没有针对雄性物种描述过雄性人为干扰的歌曲。最后，我们建议使用二重唱类型库来微调在多个交互对象的网络环境中遇到的领土。

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  • 来源
    《Animal behaviour》 |2004年第pt1期|p.193-201|共9页
  • 作者

    T. ULMAR CRAFE; JOHANNES H. BITZ;

  • 作者单位

    Zoologie 3, Biozentrum, Am Hubland, 97074 Wuerzburg, Germany;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 动物学;
  • 关键词

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