探索Pristidactylus valeriae的声音发射方法
Sebastián Díaz1, Antonieta Labra2
1Laboratorio de Ecología Geográfica, Facultad de Ciencias, Universidad de Chile, Santiago 7800003, Chile.
Animals : an open access journal from MDPI
|December 23, 2023
概括
声音,特别是Pristidactylus valeriae,在受到威胁时发出声. 声音特征,如持续时间和,可能标志着逃生能力和困境,这表明声音是家族的祖先.
科学领域:
- 伦理学 伦理学 伦理学
- 生物声学是一种生物声学.
- 脊椎动物动物学 脊椎动物动物学
背景情况:
- ,不包括,通常被认为是无声的,对声乐物种产生的声音的研究有限.
- 普里斯蒂达克提勒斯 (Pristidactylus) 属被称为"" (grunter lizards),主要在被掠夺的危险下发出口腔声音.
研究的目的:
- 为了研究Pristidactylus valeriae在受到威胁时发出的声音的声学特征.
- 探索这些发音的潜在功能和进化意义.
主要方法:
- 在模拟的掠食事件 (威胁和捕获) 中记录了17个成年和1个幼年Pristidactylus valeriae的口腔声音.
- 分析声音特征,包括持续时间,振幅,频率调制和.
主要成果:
- 成年人发出开口的声,缺乏振幅或频率调制,经常伴随着侵略性的姿势.
- 当受到威胁时,与捕获时相比,其呼声持续时间更长,这可能表明它们有逃脱能力.
- 男性的声表现出比女性的声更高的总,表明更大的痛苦.
结论:
- 在Pristidactylus valeriae的声音发射作为一种防御机制,声学特性可能传递诚实的信号.
- 在多个Leiosauridae属中出现声表明,声音的产生是这个家族中的一个祖先特征.
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