水下植物的声音:四种水下水生巨型植物的声学模式
Gea H van der Lee1, Camille Desjonquères2, Ivo Roessink1
1Wageningen Environmental Research, P.O. Box 47, 6700 AA Wageningen, the Netherlands.
The Science of the total environment
|July 6, 2025
概括
水生植物发出与光照相相关的滴答声. 这些声音可以通过声学复杂度指数检测到,它们显示出每日周期,在多种物种中,在下午晚些时候达到顶峰.
科学领域:
- 生态生态学 生态生态学
- 生物声学是一种生物声学.
- 水生植物学 水生植物学
背景情况:
- 被动声学监测是新鲜水环境的新兴技术.
- 未识别的滴答声是淡水声景的重要组成部分.
- 这些声音可能源于水生植物的初级生产,与光照下的气泡释放有关.
研究的目的:
- 研究不同水生植物物种的声学特征.
- 在自然阳光下分析这些植物的日常声学周期.
- 为了确定水生植物中光照和声音产生之间的关系.
主要方法:
- 记录了四种水生植物物种 (Callitriche sp., Elodea nuttallii, Myriophyllum spicatum, Potamogeton lucens) 在田间中等宇宙中的声音.
- 在自然阳光条件下,在13个夏天的夏天监测声音.
- 在0-2kHz频段使用声学复杂度指数 (ACI) 来量化滴答声.
主要成果:
- 所有四种研究的物种都在白天发出滴答声.
- 滴答声在研究物种中表现出类似的声学特征.
- 声学复杂度指数 (ACI) 有效地识别了滴答声的数量.
- 每天的声学周期显示,在17:00到19:00之间产生最大的声音,发生在阳光强度达到峰值后.
结论:
- 水生植物产生独特的滴答声音与一致的声学特性.
- 声学复杂度指数 (ACI) 是量化这些植物产生的声音的可靠指标.
- 需要进一步的研究来阐明复杂的淡水声景中的声音产生机制和生态意义.
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