从有光珊瑚礁到中生珊瑚礁的无脊椎动物声音揭示了垂直分层和昼夜多样性。

IF 2.3 2区 环境科学与生态学 Q2 ECOLOGY
Oecologia Pub Date : 2024-06-01 Epub Date: 2024-06-03 DOI:10.1007/s00442-024-05572-5
Xavier Raick, Éric Parmentier, Cédric Gervaise, David Lecchini, Gonzalo Pérez-Rosales, Héloïse Rouzé, Frédéric Bertucci, Lucia Di Iorio
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引用次数: 0

摘要

虽然中生珊瑚生态系统约占珊瑚礁的 80%,但由于其难以接近,在很大程度上仍未得到开发。珊瑚礁内丰富的声学特征使科学家们认为被动声学监测是研究外生珊瑚礁和中生珊瑚礁的可靠方法。我们研究了底栖无脊椎动物声音(1.5-22.5 千赫)、深度和底栖覆盖物组成之间的关系,这些是决定藻生珊瑚礁和中生珊瑚礁之间差异的关键生态因素。还探讨了不同深度的骤响和峰值频率的昼夜模式,以评估生物节律的变化。在法属波利尼西亚的六个岛屿上,分别在 20 米、60 米和 120 米深处部署了声学记录器。结果表明,深度是造成宽带瞬态声(BTS)声景差异的主要原因,随着深度的增加,声强也在降低。在 20-60 米深处,夜间的声音更大。在水深 120 米处,底栖生物的活动节律表现出较低或极不稳定的昼夜变化水平,这可能是太阳辐照减少的结果。在三个岛屿上,每天晚上 7 点到 9 点之间,120 米水深处的底栖生物数量都会出现一个奇特的峰值,这表明存在特定物种的周期性活动。我们的研究结果支持了不同无脊椎动物群落或不同行为的存在,尤其是在深层中生代珊瑚礁中。总之,这项研究为越来越多的证据支持利用被动声学监测来描述和了解中生代珊瑚礁的生态模式提供了依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Invertebrate sounds from photic to mesophotic coral reefs reveal vertical stratification and diel diversity.

Invertebrate sounds from photic to mesophotic coral reefs reveal vertical stratification and diel diversity.

Although mesophotic coral ecosystems account for approximately 80% of coral reefs, they remain largely unexplored due to their challenging accessibility. The acoustic richness within reefs has led scientists to consider passive acoustic monitoring as a reliable method for studying both altiphotic and mesophotic coral reefs. We investigated the relationship between benthic invertebrate sounds (1.5-22.5 kHz), depth, and benthic cover composition, key ecological factors that determine differences between altiphotic and mesophotic reefs. Diel patterns of snaps and peak frequencies were also explored at different depths to assess variations in biorhythms. Acoustic recorders were deployed at 20 m, 60 m, and 120 m depths across six islands in French Polynesia. The results indicated that depth is the primary driver of differences in broadband transient sound (BTS) soundscapes, with sound intensity decreasing as depth increases. At 20-60 m, sounds were louder at night. At 120 m depth, benthic activity rhythms exhibited low or highly variable levels of diel variation, likely a consequence of reduced solar irradiation. On three islands, a peculiar peak in the number of BTS was observed every day between 7 and 9 PM at 120 m, suggesting the presence of cyclic activities of a specific species. Our results support the existence of different invertebrate communities or distinct behaviors, particularly in deep mesophotic reefs. Overall, this study adds to the growing evidence supporting the use of passive acoustic monitoring to describe and understand ecological patterns in mesophotic reefs.

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来源期刊
Oecologia
Oecologia 环境科学-生态学
CiteScore
5.10
自引率
0.00%
发文量
192
审稿时长
5.3 months
期刊介绍: Oecologia publishes innovative ecological research of international interest. We seek reviews, advances in methodology, and original contributions, emphasizing the following areas: Population ecology, Plant-microbe-animal interactions, Ecosystem ecology, Community ecology, Global change ecology, Conservation ecology, Behavioral ecology and Physiological Ecology. In general, studies that are purely descriptive, mathematical, documentary, and/or natural history will not be considered.
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