Acoustic sensors enable efficient and non-invasive monitoring of a wide range of species, including many that are difficult to monitor in other ways. Although they were initially limited in application scope largely due to cost and hardware constraints, the development of low-cost, open-source models like the Audiomoth in recent years has increased access immensely and opened up new avenues of research. For example, some teams are using them to identify illicit human activities through the detection of associated sounds, like gunshots, vehicles, or chainsaws (e.g. OpenEars).
With this relatively novel dimension of wildlife monitoring rapidly advancing in both marine and terrestrial systems, it is crucial that we identify and share information about the utility and constraints of these sensors to inform efforts. A recent study identified advancements in hardware and machine learning applications, as well as early development of acoustic biodiversity indicators, as factors facilitating progress in the field. In terms of limitations, the authors highlight insufficient reference sound libraries, a lack of open-source audio processing tools, and a need for standardization of survey and analysis protocols. They also stress the importance of collaboration in moving forward, which is precisely what this group will aim to facilitate.
If you're new to acoustic monitoring and want to get up to speed on the basics, check out these beginner's resources and conversations from across the WILDLABS platform:
Three Resources for Beginners:
- Listening to Nature: The Emerging Field of Bioacoustics, Adam Welz
- Ecoacoustics and Biodiversity Monitoring, RSEC Journal
- Monitoring Ecosystems through Sound: The Present and Future of Passive Acoustics, Ella Browning and Rory Gibb
Three Forum Threads for Beginners:
- AudioMoth user guide | Tessa Rhinehart
- Audiomoth and Natterjack Monitoring (UK) | Stuart Newson
- Help with analysing bat recordings from Audiomoth | Carlos Abrahams
Three Tutorials for Beginners:
- "How do I perform automated recordings of bird assemblages?" | Carlos Abrahams, Tech Tutors
- "How do I scale up acoustic surveys with Audiomoths and automated processing?" | Tessa Rhinehart, Tech Tutors
- Acoustic Monitoring | David Watson, Ruby Lee, Andy Hill, and Dimitri Ponirakis, Virtual Meetups
Want to know more about acoustic monitoring and learn from experts in the WILDLABS community? Jump into the discussion in our Acoustic Monitoring group!
Header image: Carly Batist
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nature nerd, leopard and eagle lover
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I am Brazilian and a software developer. I have 20 years of experience in the field and I am currently the CTO of Log Nature, a company specialized in creating solutions for the environmental sector.
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Interested in miniature VHF transmitters for bat research
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- @leonardoscarpa
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I'm Leonardo, I'm a biologist, and I'm passionate about movement ecology. Another of my hobbies is GIS. I have a master's degree in this topic, which I complement with the use of technology such as drones, camera traps and acoustic receivers
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Wildlife Conservation Society (WCS)
Working for wildlife conservation in Bangladesh since 2010.
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Conservation International
I graduated in Ms of Entomology, and currently I work with Conservation International Cambodia as Biodiversity and Science Senior Coordinator.
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PhD researcher at the University of East Anglia with the working title - "From landscape to soundscape: what drives spatial variation in natural soundscape characteristics?"
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Senior Lecturer in Biological Modelling. Interests in AI, spatial data, invertebrate ecology, species mapping
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University of Minnesota
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