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Relationship between traffic noise levels and song perch height in a common passerine bird

机译：普通雀形目鸟交通噪声水平与歌鲈高度之间的关系

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The man-made noise is one of the most serious problems that animals living in close contact with humans have to contend with, as it interferes with the transmission of information encoded in acoustic signals sent from emitter to receiver. Birds with their complex songs are particularly vulnerable to anthropogenic noise. This research analyses the selectivity of song posts of the robin Erithacus rubecula with respect to a number of habitat parameters and the traffic noise amplitude. The results indicate that the birds take active steps to avoid interference to their vocal communication in the vicinity of busy roads. The males in noisy territories sang from perches located higher above the ground. This is the first report to demonstrate the correlation between song post height and traffic noise levels in a common passerine bird. Very likely, the choice of perches situated higher up in the vegetation improves the robins' auditory perception of neighbouring rivals in an environment polluted by excessive noise levels. The differences in selectivity of song post location between areas with high and low intensities of noise may have serious consequences for the individuals concerned. (C) 2014 Elsevier Ltd. All rights reserved.
机译：人为噪声是与人类紧密接触的动物必须面对的最严重的问题之一，因为它会干扰从发射器发送到接收器的声音信号中编码信息的传输。鸟歌声复杂，特别容易受到人为噪音的影响。这项研究分析了栖息地参数和交通噪声幅度方面的知更鸟Erichacus rubecula的歌曲的选择性。结果表明，鸟类在繁忙道路附近采取了积极的措施，以避免干扰他们的声音交流。喧闹地区中的雄性从地面以上的栖息处唱歌。这是第一份证明一只普通雀形目鸟鸣叫高度与交通噪声水平之间相关性的报告。在高噪声水平污染的环境中，位于植被较高处的栖息地的选择很有可能会改善知更鸟对邻近竞争对手的听觉感知。高和低噪声强度区域之间的歌曲发布位置的选择性差异可能对相关个人造成严重后果。 （C）2014 Elsevier Ltd.保留所有权利。

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