Long-Term Acoustic Recordings from Calperum Mallee Ecosystem

Holding long-term environmental audio recordings from the TERN Calperum Mallee SuperSite in South Australia, established in 2010. Two acoustic recorders captured 12 hours of audio daily, split between dawn and dusk periods, starting in 2013. The data includes generated long-term spectrograms and sensor readings for temperature and sound pressure levels.

Use Cases

• Analyze long-term spectrograms to characterize the soundscape and identify temporal trends in environmental changes.
• Use audio recordings to identify sound sources of interest and aid in the assessment of fauna biodiversity, particularly bird choruses captured at dawn and dusk.
• Monitor environmental changes by correlating sensor-recorded temperature and sound pressure levels with audio data from the mallee woodlands.
• Track ecosystem recovery by comparing acoustic data from before and after the significant wildfire that burnt mallee woodlands in January 2014.

Strengths

• Long-term data collection established in 2010, providing over a decade of potential environmental monitoring.
• Structured recording schedule of 12 hours per day, specifically targeting six hours around dawn and six hours around dusk to capture key biological activity.
• Includes derived data products such as long-term spectrograms for each audio file to aid in data exploration.

Limitations

• The specific number of audio files, total data size, and recording duration beyond the start date are not provided.
• Data collection is geographically limited to a single SuperSite on Calperum Station in South Australia.
• The file formats listed (HTML, PNG) suggest metadata and visualizations are primary, not the raw audio files themselves, which may require separate access.

Provenance

Source

Terrestrial Ecosystem Research Network's Data Discovery

Collection Method

Two acoustic recorders set up in 2013, collecting audio data for 12 hours per day (six hours around dawn, six hours around dusk). Sensors also recorded temperature and sound pressure levels.

Time Range

Site established in 2010; acoustic recording began in 2013.

Freshness

null

Geography

Calperum Station, near Renmark, South Australia. The site includes mallee woodlands and riverine vegetation.