Multimodal duetting in magpie-larks: how do vocal and visual components contribute to a cooperative signal's function?
Multimodal duetting in magpie-larks: how do vocal and visual components contribute to a cooperative signal's function?
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DOI：
10.1016/j.anbehav.2016.04.024
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发表时间：
2016-07-01
期刊：
影响因子：
2.5
通讯作者：
Magrath, Robert D.
中科院分区：
文献类型：
--
作者：
Rek, Pawel;Magrath, Robert D.
许多动物使用多模态信号进行交流，这些信号同时处理不同的感官。当单独使用时，分量可以提示相似或不同的响应，而复合信号可以具有与一个或两个分量相似的含义，或者具有新颖的含义。我们用机器人模型来解剖的视觉和声乐组件的多模态二重奏的澳大利亚喜鹊，云雀，Gravaria cyanoleuca的作用。配对产生对唱的声乐二重奏，并协调他们与视觉二重奏，这通常需要交替的翅膀运动。先前的播放实验表明，纯粹的声乐二重奏有领土功能，但视觉显示的作用是未知的。我们测量领土的反应对每个组件独立，以及多模态信号，并分析了选择的歌曲和视觉显示的合作伙伴在二重唱。声学和多模态回放引起了相同的，强烈的领土反应，需要飞行和声乐二重奏的居民对。相比之下，纯粹的视觉回放并没有引起强烈的领土反应。此外，对使用相同的视觉显示内的多模态显示，独立的歌曲类型，这意味着鸟类观看他们的合作伙伴时，选择的视觉显示，并建议它可能是一个内对信号。我们的结论是，声乐成分的二重奏是一个领土信号，其他对，而视觉组件可能协调声乐二重奏内对，类似于一个指挥的指挥棒，或有一个限制的作用，在竞争对手对之间的通信，也许特别是在长距离。(C)2016动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
Many animals communicate using multimodal signals, which simultaneously address different senses. Components may prompt similar or different responses when used alone, whereas the composite signal may have a similar meaning to one or both components, or a novel meaning. We used robot models to dissect the roles of visual and vocal components in the multimodal duets of Australian magpie-larks, Grallina cyanoleuca. Mated pairs produce antiphonal vocal duets, and coordinate them with visual duets, which usually entail alternating wing movements. Previous playback experiments show that purely vocal duets have a territorial function, but the role of visual displays is unknown. We measured territorial responses by pairs to each component independently, as well as to the multimodal signal, and analysed the choice of song and visual display used by partners during duets. Acoustic and multimodal playbacks prompted the same, strong territorial response, entailing both flight and vocal duetting by the resident pair. By contrast, purely visual playbacks did not prompt a strong territorial response. Furthermore, pairs used the same visual display within multimodal displays, independent of song type, implying that birds watch their partners when choosing the visual display, and suggesting that it could be a within-pair signal. We conclude that the vocal component of duets is a territorial signal to other pairs, whereas the visual component might either coordinate vocal duets within pairs, analogous to a conductor's baton, or have a restricted role in communication between rival pairs, perhaps especially at long range. (C) 2016 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.