Amazon Forest Soundscapes Affected by Fire and Logging

Passive sound recorders were installed at the center of each degraded forest site to record one minute of sound every five minutes over 2-8 days during September-October 2016, totaling over 1100 hours of data. Sound detections were aggregated into three-dimensional soundscapes (site-level daily summaries of acoustic space used by the animal community) by binning signal detections into ‘acoustic niches’ defined by frequency (bin size: 83.13 Hz) and time.

2016年9月至10月期间，研究人员在每一处退化森林样地的中心布设被动声学记录仪（Passive sound recorder），以每5分钟录制1分钟音频的采样方式，连续开展2至8天的声学数据采集，最终累计获取总时长超1100小时的观测数据。研究人员通过将信号检测结果划分至由频率（频箱宽度：83.13 Hz）与时间定义的"声学生态位（acoustic niches）"中，将声音检测结果聚合为三维声景（three-dimensional soundscapes）——即针对单一样地尺度、反映动物群落所利用声学空间的每日统计汇总结果。