Autonomous recording units in avian ecological research: current use and future applications
Autonomous recording units in avian ecological research: current use and future applications
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DOI：
10.5751/ace-00974-120114
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发表时间：
2017-06-01
影响因子：
1.4
通讯作者：
Bayne, Erin M.
中科院分区：
文献类型：
--
作者：
Shonfield, Julia;Bayne, Erin M.
声学调查是生态研究和监测中广泛使用的取样工具。它们被用来监测种群和生态系统，并研究动物行为的各个方面。自主录音装置（ARU）可以在大多数环境中记录声音，越来越多的研究人员使用它来对鸟类进行声学调查。本文综述了ARU在鸟类生态学研究中的应用，并对ARU技术的优点和缺点进行了总结。ARU使研究人员能够在实地花费更少的时间进行更多的重复访问，并具有永久记录所收集数据和减少观察员偏见的额外好处。它们在偏远地区和针对稀有物种非常有用。ARU在物种丰富度方面大多与人类观察者相当，但在某些情况下，它们探测到的物种较少，距离较短。ARU的缺点包括设备成本、记录存储、单元故障时的数据丢失以及空间与时间覆盖范围之间的潜在采样权衡。ARU生成大量的音频记录数据集，但自动物种识别和声学处理技术的进步有助于使处理时间易于管理。ARU的未来应用包括生物多样性监测和研究栖息地利用，动物运动，以及基于发声活动的各种行为生态学问题。ARU有可能在鸟类生态研究方面取得重大进展，并以更创新的方式使用，而不仅仅是作为该领域人类观察员的替代品。
Acoustic surveys are a widely used sampling tool in ecological research and monitoring. They are used to monitor populations and ecosystems and to study various aspects of animal behavior. Autonomous recording units (ARUs) can record sound in most environments and are increasingly used by researchers to conduct acoustic surveys for birds. In this review, we summarize the use of ARUs in avian ecological research and synthesize current knowledge of the benefits and drawbacks of this technology. ARUs enable researchers to do more repeat visits with less time spent in the field, with the added benefits of a permanent record of the data collected and reduced observer bias. They are useful in remote locations and for targeting rare species. ARUs are mostly comparable to human observers in terms of species richness, but in some cases, they detect fewer species and at shorter distances. Drawbacks of ARUs include the cost of equipment, storage of recordings, loss of data if units fail, and potential sampling trade-offs in spatial vs. temporal coverage. ARUs generate large data sets of audio recordings, but advances in automated species recognition and acoustic processing techniques are contributing to make the processing time manageable. Future applications of ARUs include biodiversity monitoring and studying habitat use, animal movement, and various behavioral ecology questions based on vocalization activity. ARUs have the potential to make significant advances in avian ecological research and to be used in more innovative ways than simply as a substitute for a human observer in the field.