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
Founder & CEO of we.are.tohorā, creating a community that cares about whales, the environment and each other.
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- @bumbleben
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Junior dev in a bioacoustics startup, interested in all forms of remote sensing and biologging
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IBM
Software Engineer for last 20 years and running a conservation organization for last 3 years, looking for more opportunities to implement tech skills for conservation
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- @Gathoni
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PhD Candidate at Nottingham Trent University, UK. Ecologist with a passion for wildlife conservation and conservation technology with foundational training in BSc and MSc Rangeland Management (Ecology option). Current project: Use of acoustics to monitor ecosystem restoration.
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University of Pittsburgh
Studying macroecology and conservation using bioacoustics
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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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Society for Conservation GIS
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- @Thomas_Luypaert
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Norwegian University of Life Sciences (NMBU)
Ecological monitoring enthusiast with a focus on ecological and conservation research
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Wildlife Drones
Wildlife Drones has developed the world’s most innovative radio animal-tracking system using drones so you can track your radio-tagged animals like never before.
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I'm a wildlife ecologist with interests in a range of technology.
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CIBIO-InBio
I am a PhD student working on wolf bioacoustics. I am combining Audiomoths and Deep Learning into more efficient wolf monitoring protocols. My main field of interest is population ecology.
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Sarab Sethi is looking for a PhD student (Sept 24) to investigate real time insect pollinator monitoring with acoustics. Sensor design, ML, lab and field experiments, and more !
16 November 2023
Join the Rainforest Connection & Arbimon team to develop software for biodiversity monitoring!
14 November 2023
Yale University & Map of Life Rapid Assessments - XPRIZE
8 November 2023
Baker Consultants has released new ecoacoustic research assessing the benefits of using automated detectors alongside transect bird survey methods.
30 October 2023
Article
Five #tech4wildlife people, projects and updates that caught my attention this month. This issue is a naturetech, biodiversity startup edition! Featuring a living map of the biodiversity startup scene, is nature data...
27 October 2023
Careers
The Institute for Bird Populations (IBP) seeks a California-based acoustic monitoring specialist to collect, manage, and process avian acoustic data from multiple research and conservation projects across California...
26 October 2023
With the rising threats to biodiversity such as wildlife crime, climate change and human-wildlife conflict today, wildlife monitoring technologies have become vital to study movement ecology, behaviour patterns, changes...
25 October 2023
To study song evolution in time and space, we will use individual acoustic monitoring (IAM) - a non-invasive method that allows the identification of individuals based solely on their vocalisations. In this project, we...
20 October 2023
The Marie Skłodowska-Curie PhD Fellowship in Bioacoustic AI for wildlife protection. The PhD position advertised here will be based at the KU Leuven Electrical Engineering Department (ESAT), under the supervision of...
20 October 2023
FLOATERS: Using individually distinct vocalizations to estimate breeding and non-breeding population of a species. Apply for the fully funded PhD position now!
20 October 2023
The Kitzes Lab at the University of Pittsburgh (http://kitzeslab.org) is seeking applications for a Postdoctoral Scholar, Research Assistant, and Graduate Student to work in the areas of bioacoustics, quantitative...
28 September 2023
Careers
Island Conservation's Innovation Team is dedicated to developing innovative, data-driven tools to increase the scale, scope, and pace of island restorations around the world. As the Conservation Innovation Manager, you...
27 September 2023
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Description | Activity | Replies | Groups | Updated |
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Oh wow, thank you so much!!!I will keep that four advices in mind! |
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Acoustics | 2 hours 55 minutes ago | |
Very interesting project! I had a few questions or things to consider. Funny enough, I work next to the Elephant Listening Project (ELP) in Central Africa. They've tried a few... |
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Acoustics | 1 hour 7 minutes ago | |
You won't get any audio if you don't allow enough time for the hydromoth/audiomoth to write. So when you do a continuous recording you need to experiment a little. I'm sure there... |
+3
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Acoustics | 1 day 3 hours ago | |
Same issues here. A MEMS is a great idea to pot, but you really need a piezoelectric element for this to work and not a MEMS based on capacitance (btw they're all capacitance,... |
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Acoustics, Biologging | 1 day 1 hour ago | |
Congratulations! My first hydromoth was just arrived yesterday and so excited! Looking forward for the update from your project!!! |
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Acoustics, Biologging, Climate Change, Conservation Tech Training and Education, Data management and processing tools, Emerging Tech, Open Source Solutions, Protected Area Management Tools, Sensors, Software and Mobile Apps | 1 day 3 hours ago | |
Also some other bat experts I'd recommend reaching out to, if you haven't already (for this and any bat acoustic questions) - Adrià López-Baucells, Nils Bouillard, Kate Jones,... |
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Acoustics | 1 day 12 hours ago | |
If you have the resources, I would suggest testing the sensitivity and directionality of the system at relevant frequencies both with and without an external mic, and let the... |
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Acoustics | 1 day 23 hours ago | |
Thank you Robyn. Sure I will send more information to your email |
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Citizen Science, Acoustics, Conservation Tech Training and Education, Human-Wildlife Conflict | 1 week 1 day ago | |
Hey Sol, No problem at all. Depending on your configuration, the Audiomoth software would have to work on a PCB with an ESP32 chip which is the unit on the audiomoth/... |
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Acoustics, AI for Conservation, Data management and processing tools, Emerging Tech, Sustainable Fishing Challenges | 1 week 3 days ago | |
Totally agree.Inititally sceptical until I saw Helena and Graeme were involved.MJ |
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Acoustics, Citizen Science, Community Base, Human-Wildlife Conflict | 1 week 5 days ago | |
Thanks Carly! I will keep anyone interested in this project posted on this platform. Cheers |
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Acoustics, AI for Conservation | 2 weeks 1 day ago | |
'Most importantly, we have to make it play a MIDI version of the DoctorWho theme song when you arm the device. That has to be the #1 feature if you ask me!' Seconded! |
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Acoustics, Biologging, Emerging Tech, Open Source Solutions, Sensors | 2 weeks 2 days ago |
New paper: Benthic animal-borne sensors & citizen science combine to validate ocean modelling
10 October 2022 4:15pm
"We develop the use of benthic species as animal oceanographers by combining archival (depth, temperature) data from animal-borne tags, passive acoustic telemetry & citizen-science mark-recapture records for the flapper skate in Scotland."
The Smart Biosphere: How Technology can provide regenerative resources at scale
10 October 2022 12:06pm
Open Position at Cornell - Software/Firmware Developer
6 October 2022 5:10pm
Multi-day workshop: Machine Learning Advances for Marine Acoustics & Imagery Data
4 October 2022 5:20pm
Audio Across Domains Workshop 2022
3 October 2022 7:54pm
11 October 2022 2:05pm
New paper - Rookognise: Acoustic detection & identification of individual rooks in field recordings using multi-task neural networks
3 October 2022 2:35pm
Authors developed system to acoustically identify individual animals (under varying conditions) using combo of multi-scale information integration, multi-channel audio & multi-task learning. Tested on captive group of rooks.
New paper: Battery-free wireless imaging of underwater environments
29 September 2022 3:22pm
'The low-power camera uses power from harvested acoustic energy and communicates colour images wirelessly via acoustic backscatter.' - https://twitter.com/NaturePortfolio/status/1574863768714100738?s=20&t=d…
New paper: Seasonal swarming behavior of Myotis bats revealed by integrated monitoring, involving passive acoustic monitoring with automated analysis, trapping & video monitoring
27 September 2022 3:22pm
Authors 'examined effectiveness of acoustic monitoring compared to capture-based & video monitoring of seasonal swarming behavior among Myotis bats in UK. The 3 approaches have advantages & disadvantages for different tasks, but can be highly complementary methods.'
Conservation Tech Directory - new update!
29 August 2022 2:38pm
23 September 2022 5:26pm
Congrats on the milestone Carly and Gracie!
26 September 2022 10:07pm
Thanks so much!!
Audio Data Across Domains (AudioXD) Workshop
6 June 2022 3:52pm
1 September 2022 11:46am
Great minds Alice!! I'd actually sent your workshop to justin separately this morning because of the alignment with audioxd.
As for joining things up globally, I think you're right. Looking at all that's happening in the bioacoustics community right now, seeing all these sort of events, what's happening with the bioacoustics stack exchange, and hearing the conversations that are happening - and it feels like such an opportune time to find a way to support all of these efforts link up and join forces. We have some plans on this front that will mean we'll be able to provide coordination support to help, and I'm interested to hear what people think is needed.
Steph
1 September 2022 3:21pm
Thanks Alice, and great to hear from you and Steph about the work that you all are leading. It would be great to follow up on the idea of doing more international collaboration in the ecoacoustics/bioacoustics space. If you're interested, feel free to drop me a line to catch up sometime about ideas.
Also, something of a side note, but we'll also have a Wildlabs blog post up summarizing the AudioXD meeting soon, hopefully.
26 September 2022 9:22pm
I love the idea of increasing international collaboration and inclusion within acoustic monitoring! I think there particularly needs to be more collab'ing between the terrestrial & aquatic/marine acoustic monitoring folks!
It would be great for more virtual/hybrid events to foster such international inclusion, so anything to facilitate that sort of online platform would be awesome!
There is also the new Bioacoustics Stack Exchange for Q&A. And the upcoming IBAC conference in Japan next October (2023).
Ecological Forecasting Initiative's data analysis webinar series
26 September 2022 6:50pm
New paper: A novel method for identifying coded tags recorded on aquatic acoustic monitoring systems
26 September 2022 2:11pm
Authors demonstrated "a low cost, simple method to support acoustic tag surveys by identifying tags both from direct acoustic recordings & by reconstructing code packets from processed C-POD data. Method was applied to decode tag detections from bass & Twaite shad."
Mangrove soundscape
27 August 2022 4:57pm
29 August 2022 2:47pm
You might check out the devices listed in the Conservation Tech Directory - you can search for 'acoustic recorder' or 'ARU' or something like that.
The most common off-the-shelf models (other than Frontier Labs' BARLTs mentioned above😊) are Open Acoustic Devices Audiomoths & Hydromoths (which may be particularly useful for you since they come in completely watertight cases that can be stuck underwater for deployments), Wildlife Acoustics' SongMeter series, and Cornell Lab of Ornithology's Swift units.
30 August 2022 10:10pm
Camilo--
Are you interested only in airborne sounds or do you want to deploy hydrophones? That decision would inform a lot of other decisions about your purchase of equipment, as would having a clearer picture of your budget.
23 September 2022 5:39pm
Hi there Camilo,
What an interesting project! If you are looking for a lower cost, but effective tools for acoustic monitoring you might want to look into two options:
SoundTraps - are very commonly used and perform quite well:
SonarPoints - these are also a great instrument option:
Senior Conservation Technology Expert Position (Consultancy) with the Global Wildlife Program
22 September 2022 5:35pm
New paper: Passive acoustic monitoring as a tool to investigate the spatial distribution of invasive alien species
21 September 2022 2:07am
Authors developed reproducible passive acoustic monitoring pipeline to rapidly provide baseline information on invasive alien species (IAS); found that IAS occurrence related to high levels of human disturbance.
New paper: Evaluation of a coastal acoustic buoy for cetacean detections, bearing accuracy and exclusion zone monitoring
20 September 2022 3:00pm
Authors "developed a three-hydrophone passive acoustic monitoring system that provides bearing information along with marine mammal detections to allow for informed management decisions in real-time."
New paper: Soundscapes show disruption across the diel cycle in human modified tropical landscapes
20 September 2022 2:40pm
Authors founds dawn & dusk choruses were lost/supressed in plantations, acoustic activity at dawn/dusk reduced in disturbed ecosystems compared to healthy forests.
WILDLABS Journal Club
15 September 2022 11:42am
15 September 2022 12:17pm
Ah Journal club - this was a lot of fun but a little chaotic. We've been wondering if we should bring it back with a slightly different format. ie we all agree on a paper to read before rather than bringing a mix of things to present. What does everyone think? Is anyone else keen? Is there a format you'd suggest we use?
15 September 2022 3:49pm
I have been waiting for journal club to come back!! 10000% down.
I agree with @StephODonnell, would love it to come back!!! And now that variety hour is happening, that's more of the "mix of things" that she mentioned anyways so I think that new format would be great.
Online Course – Introduction to Aquatic Acoustic Telemetry
14 September 2022 6:13pm
CFP - transnational biodiversity monitoring (from European Biodiversity Partnership)
14 September 2022 1:42pm
Join the BirdNET team!
9 September 2022 2:43pm
BOEM job openings
Postdoctoral Fellow in Soundscape Ecology at Purdue University
8 September 2022 4:12pm
Catch Up with the Variety Hour: September 2022
6 September 2022 12:31pm
Postdoc: Noise Impacts on Marine Animals
1 September 2022 9:25pm
New paper - 'soundClass: An automatic sound classification tool for biodiversity monitoring using machine learning'
1 September 2022 8:53pm
Silva et al -
- R package to train convolutional neural networks & employ them to classify sounds
- sound event classification pipeline, from annotating recordings to automating
trained networks
- case studies with bat & whale echolocation calls, bird songs
Solicitation of Interest: NAVFAC Atlantic Marine Resources
31 August 2022 7:28pm
Acoustics Modeler & Analyst, Marine Acoustics Inc
30 August 2022 9:45am
3 October 2022 11:40pm