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阿尔巴特罗斯的运动表明,它对海上超声波信号的敏感性很强

Natasha Gillies¹, Lucía Martina Martín López^1,2, Olivier F C den Ouden^3,4

¹School of Environmental Sciences, University of Liverpool, Liverpool L3 5DA, United Kingdom.

Proceedings of the National Academy of Sciences of the United States of America

|October 9, 2023

概括

流浪阿尔巴特罗斯可能会使用超声波,一个远程的声音提示,以导航巨大的海洋距离. 这项研究表明,超声波有助于它们找到有利的风和寻找食物的区域,以有效飞行.

科学领域:

动物行为动物行为
生物声学是一种生物声学.
导航导航导航导航导航

背景情况:

海鸟在很长距离的航行是很难理解的.
嗅觉和视觉线索的范围有限 (100s公里) 对于像鱼这样的广泛的物种.
超声波,低频声音,可以传输数千公里,并可能信号环境条件.

研究的目的:

为了研究流浪鱼 (Diomedea exulans) 是否对海上微波罗姆超声波做出反应.
探索超声波作为海鸟潜在的远程导航线索.

主要方法:

利用全球定位系统 (GPS) 来追踪89只自由散居的鱼的数据.
采用声学建模来分析在食之旅期间的微波罗姆超声波水平.
与超声波源区域和风数据相关联的阿尔巴特罗斯运动模式.

主要成果:

导向于微波罗姆超声波水平较高的区域的鱼.
除了对当地的风的反应外,还发生了向超声波源的移动.
这表明对远距离的超声波线索有潜在的行为反应.

结论:

流浪阿尔巴特罗斯可能会使用超声波来评估有利于飞行的环境条件.
超声波线索可以帮助鱼精力优化长途飞行.
这项研究提供了关于海鸟在没有特征的海洋环境中的导航的见解.

关键词:

动物航行动物航行动物的运动动物的运动鸟类听证会的听证会是什么?运动生态学运动生态学海洋鸟类海鸟

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Echo

Echo

The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...