Alice Mulga Acoustic Data Collection - TERN

This dataset contains audio files for Alice Mulga SuperSite. Alice Mulga SuperSite was established in 2010 at Pine Hill Cattle Station with research plots located in low open woodland mulga (Acacia aneura) and non-acacia, hummock grassland, and river red gum forest. The core 1 ha plot is located in a dense mulga woodland (cover 70–80%). For additional site information, see Alice Mulga SuperSite

In 2013 an acoustic recorder was set up in mulga woodland to collect audio data for a total of 12 hours per day, split between six hours around dawn and six hours around dusk. The recording schedule aimed at capturing morning and evening bird choruses while minimizing memory and battery requirements. A long-term spectrogram has been generated for each audio file to aid in data exploration. The sensor also recorded temperature, minimum- maximum- and mean-sound pressure levels.

Acoustic indices and false colour spectrograms were created for the recordings. Acoustic indices are summaries of the distribution of the acoustic energy in a recording. They are particularly useful for the analysis of long-term recordings of the environment and can be used to identify sound sources of interest, characterise the soundscape, aid in the assessment of fauna biodiversity, monitor temporal trends and track environmental changes. False colour spectrograms are visual representation of individual acoustic indices or combination of multiple indices. They can highlight the presence of specific sound sources, e.g. birds, insects or weather events, providing a tool for navigating long-term recordings.

Data are made available through the data link. For downloading large amount of data, please follow these instructions How to download TERN's acoustic data in bulk