2020 Volume 18 Issue 2 Pages 3-9
I reviewed recent trends of acoustic surveys of wildlife. The following six topics are summarized. 1. Characteristics of animal call, 2. Equipment for collecting acoustic data, 3. Visualization of acoustic data, 4. Detection of animal calls from recorded data, 5. Classification of taxa by machine learning, 6. Application of automated recording technology to wildlife research. Autonomous recording units and automated processing are promising tools for objective and efficient wildlife surveys in environmental impact assessment.