瓶鼻海豚 (Tursiops truncatus) 的被动电感受:对微观和大规模定向的影响
Tim Hüttner1,2, Lorenzo von Fersen2, Lars Miersch1
1Institute for Biosciences, University of Rostock, Albert-Einstein-Strasse 3, 18059 Rostock, Germany.
The Journal of experimental biology
|November 30, 2023
概括
玻璃鼻海豚拥有电感应,检测弱电场,类似于圭亚那海豚和鱼. 这种感官能力有助于捕食物检测和使用地球磁场进行潜在的大规模导航.
科学领域:
- 海洋生物学 海洋生物学
- 感官生理学 感官生理学
- 动物行为 动物行为
背景情况:
- 圭亚那海豚和瓶鼻海豚的振动密室作为电感受器起作用.
- 这两种海豚物种都对弱电场表现出敏感性.
研究的目的:
- 为了比较评估玻璃鼻海豚的电感受灵敏度.
- 确定直流 (DC) 和交流 (AC) 电场的检测值.
主要方法:
- 使用去/不去范式的心理物理实验被采用.
- 训练了两只玻璃鼻海豚以对电场刺激做出反应.
主要成果:
- 玻璃鼻海豚检测到直流电场的低值为2.4和5.5μV cm-1,与其他物种相比.
- 交流场的检测值高于直流场,随着频率的增加 (1,5,25 Hz) 而下降.
结论:
- 海豚的电感受,虽然不如弹性树枝那么敏感,但支持微观和宏观的方向.
- 电感应可能有助于近距离捕食的检测和食的目标导向在谷底寻食海豚.
- 这种感觉模式可以通过诱导实现磁感应来进行大规模导航.
相关概念视频
Equilibrium and Balance
4.7K
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
4.7K
The Vestibular System
39.6K
The vestibular system is a set of inner ear structures that provide a sense of balance and spatial orientation. This system is comprised of structures within the labyrinth of the inner ear, including the cochlea and two otolith organs—the utricle and saccule. The labyrinth also contains three semicircular canals—superior, posterior, and horizontal—that are oriented on different planes.
39.6K


