Song matching, overlapping, and switching in the banded wren: the sender's perspective.
Song matching, overlapping, and switching in the banded wren: the sender's perspective.
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带状鹪鹩的歌曲匹配、重叠和切换：发送者的视角。
DOI：
10.1093/beheco/arm054
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Dalziell,AnastasiaH
中科院分区：
文献类型：
--
作者：
Vehrencamp,SandraL;Hall,MichelleL;Bohman,ErinR;Depeine,CatherineD;Dalziell,AnastasiaH
解释接收器对攻击性信号的本地回放的响应是有问题的。一种解决方案是将这种接收者视角的实验与发送者视角的实验结合起来，让受试者展示他们对歌唱策略的选择如何与他们的接近行为相关联。在这里，我们报告了对带状鹪鹩（Thryothorus pleurostictus）进行的发送者视角研究的结果，并结合背景信息和先前接收者视角实验的结果来阐明功能。领地雄性会播放一段 5 分钟的回放，其中包含其曲目中存在的歌曲类型。我们评估了受试者的歌曲匹配率、重叠率和歌曲类型多样性与其接近潜伏期、接近程度、首次撤退潜伏期以及靠近说话者的时间的相关程度。雄性年龄、繁殖阶段和播放刺激的特征也被考虑在内。歌曲匹配与快速和近距离的接近相关，这与接收者视角对类型匹配作为攻击性动机的传统信号的解释是一致的。重叠与早期撤退有关，再加上接收者对我们之前的重叠播放实验的厌恶反应，表明重叠是一种防御性撤退信号。高多功能性与较慢的第一次从演讲者撤退以及主题和播放之间的高水平相互匹配相关。带着雏鸟的雄性唱歌的通用性特别低，并且侵略性地接近说话者，而带着雏鸟的雄性则重叠得更多并且很快撤退。最后，年长的雄性匹配更多，但重叠更少。
Interpreting receiver responses to on-territory playback of aggressive signals is problematic. One solution is to combine such receiver-perspective experiments with a sender-perspective experiment that allows subjects to demonstrate how their choice of singing strategies is associated with their approach behavior. Here we report the results of a sender-perspective study on the banded wren (Thryothorus pleurostictus) and combine information on context and results of previous receiver-perspective experiments to clarify function. Territorial males were presented with a 5-min playback consisting of song types present in their repertoire. We assessed the degree to which the subjects' song-matching rate, overlapping rate, and song-type versatility were correlated with their approach latency, closeness of approach, latency to first retreat, and time spent close to the speaker. Male age, breeding stage, and features of the playback stimuli were also considered. Song matching was associated with rapid and close approach, consistent with the receiver-perspective interpretation of type matching as a conventional signal of aggressive motivation. Overlapping was associated with earlier retreat and together with the aversive receiver response to our previous overlapping playback experiment suggests that overlapping is a defensive withdrawal signal. High versatility was associated with slower first retreat from the speaker and high levels of reciprocal matching between subject and playback. Males with fledglings sang with particularly low versatility and approached the speaker aggressively, whereas males with nestlings overlapped more and retreated quickly. Finally, older males matched more but overlapped less.
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