青中的超声波通信
Albert S Feng1, Peter M Narins, Chun-He Xu
1Department of Molecular and Integrative Physiology & Beckman Institute, University of Illinois, Urbana, Illinois 61801, USA. afeng1@uiuc.edu
Nature
|March 17, 2006
概括
超声波通信和听力是在洞耳朵的河 (Amolops tormotus) 中发现的,这是一种两动物. 这挑战了只有哺乳动物才能使用超声波进行通信的观念,它们很可能进化以克服杂的河流环境.
科学领域:
- 生物声学是一种生物声学.
- 动物沟通动物沟通
- 进化生物学 进化生物学
背景情况:
- 超声波声音的产生和检测 (>20 kHz) 之前仅在少数哺乳动物群体 (蝙蝠,鱼,动物) 中已知.
- 大多数两动物,爬行动物和鸟类的听力有限 (<12 kHz).
- 洞耳朵的河 (Amolops tormotus) 居住在杂的,快速流动的溪流中.
研究的目的:
- 为了研究两动物Amolops tormotus的超声波通信和听力.
- 为了确定超声波发声是否用于通信,或者是声音生产的副产品.
- 了解这种物种超声波能力的进化驱动因素.
主要方法:
- 在Amolops tormotus的自然息地进行现场声学回放实验.
- 对超声波组件的发声分析.
- 听觉中脑反应的电生理记录.
主要成果:
- 雄性Amolops tormotus以超声波频率发出类似鸟类的叫声.
- 呼叫的可听和超声波组成部分都引起了男性的声音反应.
- 听觉中脑证实了Amolops tormotus和一个同情物种的超声波听力能力.
结论:
- 两动物拥有超声波通信和听力能力,以前认为仅限于哺乳动物.
- 在Amolops tormotus中超声波能力的演变很可能是对强烈的低频环境噪声的反应.
- 这代表了超声波感知在一个独特的脊椎动物血统的独立进化.
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