环境变量对非洲企声乐活动的影响:用于声学普查的含义
Franziska Hacker1, Francesca Terranova2, Gavin Sean Petersen3
1ENES Bioacoustics Research Team, University of Saint-Etienne, 42100 Saint-Etienne, France.
Biology
|September 28, 2023
概括
通过分析它们的呼叫,被动声学监测 (PAM) 可以有效地估计非洲企种群. 这种非侵入性方法有助于追踪危的海鸟,并为保护策略提供信息.
科学领域:
- 海洋生物学 海洋生物学
- 生物声学是一种生物声学.
- 保护科学 保护科学
背景情况:
- 全球生物多样性正在下降,海鸟面临重大威胁.
- 有效的保护需要了解种群动态,需要非侵入性监测工具.
研究的目的:
- 调查被动声学监测 (PAM) 对于估计非洲企 (Spheniscus demersus) 繁多的实用性.
- 为了实现高效的数据分析,自动检测狂喜显示曲目 (EDS).
主要方法:
- 在南非的一个非洲企殖民地部署了PAM设备.
- 开发了EDS的自动检测算法.
- 与企的视觉计数相关联的声学数据.
主要成果:
- 自动化EDS检测促进了大数据集分析.
- 企的呼叫率受到环境因素 (风速,湿度,温度) 的影响.
- 声学数据 (EDS计数) 与直接视觉计数显示出正相关性,使密度估计成为可能.
结论:
- PAM是一种可行的,非侵入性的工具,用于监测危非洲企种群.
- 环境因素,特别是温度,可能会影响企的行为和种群动态.
- 这种方法支持了对受威胁的海鸟物种的关键保护工作.
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