不掩盖噪音可以抑制鸟儿的歌声
Isaac Muñoz-Santos1, José Roberto Sosa-López2, Alejandro Ariel Ríos-Chelén3
1Doctorado en Ciencias Biológicas. Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Carretera Tlaxcala-Puebla Km 1.5, Tlaxcala, Tlaxcala 90062, Mexico.
Behavioural processes
|July 24, 2025
概括
人类制造的噪音会扰乱鸟类的歌声,即使它没有掩盖声音. 黄金捕鸟在接触到非掩盖噪音时减少了唱歌,影响了沟通和潜在的繁殖.
科学领域:
- 动物行为 动物行为
- 生物声学是一种生物声学.
- 环境声学环境声学
背景情况:
- 人为噪音影响动物的声学交流,主要是为了掩盖效果而研究.
- 以前的研究表明,鸟类改变声调以避免掩盖噪音.
- 非掩盖噪音对动物声乐行为的影响仍然不太清楚.
研究的目的:
- 为了研究非掩盖交通噪音对红飞 (Pyrocephalus rubinus) 的唱歌行为的影响.
- 为了确定鸟类是否会因响应与其发声频率不重叠的噪音而改变唱歌行为.
- 为了测试假设,掩盖释放是鸟类在噪音事件中停止唱歌所必需的.
主要方法:
- 暴露了21个自由生活的雄性鸟对模拟的非掩盖交通噪音 (1kHz和2kHz过).
- 记录并比较了焦点男性在噪音播放之前,期间和之后唱歌的歌曲数量.
- 分析了在噪音开始时立即停止唱歌的男性比例.
主要成果:
- 一部分男性在暴露于1kHz (4/21) 和2kHz (8/21) 过噪声后停止唱歌.
- 与基线相比,在2kHz噪音暴露期间,没有观察到歌曲数量的显著差异.
- 男性在暴露于1kHz噪音后唱歌的次数明显减少,这表明暴露后的效应.
结论:
- 非掩盖噪音可以干扰鸟儿的歌声,独立于掩盖释放.
- 紫金可能会停止唱歌,以应对非掩盖噪音,这表明对声乐行为的影响更广泛.
- 通过非掩盖噪音扰乱鸟歌可能会对性选择和繁殖成功产生影响.
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