There You Are! Automated Detection of Indris' Songs on Features Extracted from Passive Acoustic Recordings.

ABSTRACT: The growing concern for the ongoing biodiversity loss drives researchers towards practical and large-scale automated systems to monitor wild animal populations. Primates, with most species threatened by extinction, face substantial risks. We focused on the vocal activity of the indri (Indri indri) recorded in Maromizaha Forest (Madagascar) from 2019 to 2021 via passive acoustics, a method increasingly used for monitoring activities in different environments. We first used indris’ songs, loud distinctive vocal sequences, to detect the species’ presence. We processed the raw data (66,443 10-min recordings) and extracted acoustic features based on the third-octave band system. We then analysed the features extracted from three datasets, divided according to sampling year, site, and recorder t

SUBMITTER: Ravaglia D 

PROVIDER: S-EPMC9855168 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature