SM2在无人值守录音机监测松鸡求偶活动中的应用
Abstract
Capsule: Automated acoustic recording can be used as a valuable survey technique for Capercaillie Tetrao urogallus leks, improving the quality and quantity of field data for this endangered bird species. However, more development work and testing against traditional methods are needed to establish optimal working practices.
Aims: This study aims to determine whether Capercaillie vocalizations can be recognized in lek
recordings, whether this can be automated using readily available software, and whether the
number of calls resulting varies with location, weather conditions, date and time of day.
Methods: Unattended recording devices and semi-automated call classification software were used to record and analyse the display calls of Capercaillie at three known lek sites in Scotland over a twoweek period.
Results: Capercaillie calls were successfully and rapidly identified within a data set that included the vocalizations of other bird species and environmental noise. Calls could be readily recognized to species level using a combination of unsupervised software and manual analysis. The number of calls varied by time and date, by recorder/microphone location at the lek site, and with weather conditions. This information can be used to better target future acoustic monitoring and
improve the quality of existing traditional lek surveys.
Conclusion: Bioacoustic methods provide a practical and cost-effective way to determine habitat
occupancy and activity levels by a vocally distinctive bird species. Following further testing alongside traditional counting methods, it could offer a significant new approach towards more effective monitoring of local population levels for Capercaillie and other species of conservation concern.
摘要：
胶囊：自动声学记录可以作为一种有价值的调查技术，用于调查四头乌鸡，提高这种濒危鸟类的野外数据的质量和数量。然而，需要更多的开发工作和对传统方法的测试来建立最佳的工作实践。
目的：本研究旨在确定是否可以在lek录音中识别Capercailie发声，是否可以使用现成的软件自动识别，以及产生的呼叫数量是否因位置、天气条件、日期和时间而异。
方法：使用无人值守记录设备和半自动呼叫分类软件，在两周内记录和分析显示苏格兰三个已知求偶地点的松鸡的呼叫。
结论：生物声学方法提供了一种实用且经济高效的方法来确定具有声音特征的鸟类的栖息地占有率和活动水平。在与传统计数方法一起进行进一步测试后，它可以为更有效地监测松鸡和其他受保护物种的当地种群水平提供一种重要的新方法。
关键词：SM2+，鸟类鸣叫记录，野生动物声学监测，无人值守声学记录器
