呼吸对鸟类的贡献 - - 鸟歌进化考量和开放问题
Franz Goller1,2
1Institute for Integrative Cell Biology and Physiology, University of Münster, Münster 48149, Germany.
概括
鸟类的呼吸对于发声至关重要,它影响着各种鸟类的歌唱时间和声学. 需要进一步的研究来了解发声中的呼吸控制机制.
科学领域:
- 比较生理学比较生理学
- 生物声学是一种生物声学.
- 进化生物学是进化的生物学.
背景情况:
- 呼吸为鸟类声振动提供了空气流,控制了歌曲的时间和重要功能.
- 虽然在歌鸟 (oscines) 中进行了研究,但其他鸟类类的声音行为中的呼吸作用尚不清楚.
- 了解呼吸系统的演变需要广泛的分类学数据.
研究的目的:
- 为了研究呼吸在不同种类的鸟类声声行为中的作用.
- 探索鸟类呼吸系统在发声方面的进化专业化.
- 检查呼吸活动如何影响鸟类肺气囊系统中的声学特征和空气流.
主要方法:
- 未经研究的鸟类类的声学录音.
- 分析呼吸道肌肉活动及其与发声的相关性.
- 对鸟类呼吸控制现有文献的综述.
主要成果:
- 声学数据表明,快速呼吸肌动作是一种基底鸟类特征.
- 呼吸活动会影响声音的振幅和频率,非语音学习者的压力效应更强.
- 唱歌提供了关于鸟类肺气囊空气流动动学的见解.
结论:
- 呼吸控制与发声密切相关,影响时间模式和声学特性.
- 呼吸控制的关键方面,包括起器电路,语音启动输入和反,仍然不完全理解.
- 进一步的研究是必不可少的,以阐明进化和机械的基础的鸟类呼吸控制在声乐行为.
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