Have you ever wondered what #narwhals 🐬🦄 do when the fjords of #Greenland are frozen solid ❄️? Our researchers including @juli827g.bsky.social have been listening underwater using #passiveacousticmonitoring 🎧 to find out: www.nature.com/articles/s41... #bioacoustics #marinemammals #Arctic

Novel insights on #spermwhale communication 🐋🔈: Male Sperm Whales may use slow clicks to maintain information over extreme distances, and these long-range signals may offer honest advertisement through slow-rhythm-keeping to distant receivers. #marinebioacoustics doi.org/10.1111/nyas...

#Bats in not so dark and not so quiet night skies 🦇🔉🔦 Caspersen et al. show that Daubenton's bats are vulnerable to #lightpollution and #noisepollution, but they also show the bat's ability to recover within minutes of the stressor being removed. #bioacoustics doi.org/10.1038/s415...

Exciting new insights on #echolocation in #bats 🦇🔉 Mortensen et al. report the first documented case of aerial hawking in bats without the three griffin phases of echolocation, highlighting that a fast-updating buzz is not necessary for aerial prey capture. #bioacoustics doi.org/10.1242/jeb....

Eavesdropping on #beakedwhales in great depths In January, some of our colleagues went to #ElHierro The goal: To quantify the click parameters of endangered beaked whales at 1 km depth, successfully testing a #deepwater #acousticarray system that can be deployed from small boats! #bioacoustics

#PHD #summerschool in #bioacoustics 🦇🐬🐦🐘🔉- Application open NOW If your PhD studies 🧑‍🎓👩‍🎓involve #acousticcommunication in terrestrial or marine animals, we highly recommend participating in this biennial international 14-days intensive graduate course by @sdu.dk www.sdu.dk/en/forskning...

What an incredible #rescuemission in #greenland ! When the #bowhead 🐋 spotting drone ran out of battery & made an emergency landing on an iceberg, our master's student Oliver & the amazing Greenland Institute of Natural Resources team sent the larger #whale #tagging drone to successfully salvage it!

🐬 #GasExchange Dynamics In #BottlenoseDolphins Around 2 Min Apneas Conform To Values For Terrestrial Mammals 🐘🐄 Researchers from our lab found a long-needed answer studying bottlenose dolphins. #marinemammals #physiology #research #divingphysiology doi.org/10.1242/jeb....

Gas exchange dynamics in bottlenose dolphins around 2 min apneas conform to values for terrestrial mammals

Summary: When recovering from apnea, bottlenose dolphins have very high oxygen extractions, but only for very few breaths, highlighting that marine mammals probably have similar acid–base physiology t...

doi.org

New publication 🐋 fresh out of our #bioacoustics lab! Congratulations to our dedicated colleague @beeden.bsky.social & co-authors 🥳 HIGH FREQUENCY #VESSELNOISE 🛥️ MASKS ECHOLOCATION AND COMMUNICATION 🔉 IN #HARBOURPORPOISES 🐬 Read the full article here: doi.org/10.1121/10.0...

🥂Last month, we hatched 2 new Master’s graduates 👨‍🎓👩‍🎓 who both successfully defended their theses: 🦇 Sebastian Mortensen: Aerial hawking by a gleaning specialist bat (Trachops cirrhosus) does not involve a resolution buzz 🎤 🦭 Naja Christensen: Field metabolic rate of Harbour seals ⚡ Congratulations 🥳

Last week, our 2 PhD students & colleagues successfully conducted a full turnover of 8 #acousticrecording stations 🎧 out in Aarhus Bay 🌊. The data feeds into a year-round #marinesoundscape monitoring programme to assess #noisedisturbance for #harbourporpoises 🚢🐬(funded by AVJ Naturfond).

🎙️🔊🐬 ALL IS WELL IF YOU KNOW YOUR RECORDING CHAIN🎙️🔊🦇 A few days ago we had our annual walkthrough of recording chain essentials, to all remind ourselves what it requires to make trustworthy and high-quality recordings! That is always useful for both aspiring and seasoned bioacousticians 🧐

Last week, our lab successfully tested a new hydrophone 🎙️calibration ⚖️ method out in the port of #Aarhus ⚓. Tests like these will allow for more accurate sound measurements - such as noise levels from shipping 🚢 and other maritime activities.  #bioacoustics #marineacoustics

It's live! Please see my new paper in Ecological Informatics on the #detection and #categorization of frequency notched echolocation from wild recordings. 🐬🔊👇 www.sciencedirect.com/science/arti...

Molly the #bioacoustics #corgi joined, too!

AU Bioacoustics@bioacousticsau.bsky.social · 9mo ago

🦇🌙⛏ IT'S SPOOKY SEASON 🎃💀🕷 When you study #bioacoustics and #bats, there is always an appropriate Halloween outing! This year, we went to the Mønsted limestone mine, a 60-km-long man-made cave system and THE place to be for winter hibernation (9000 bats surely can't be wrong!).

🦇🌙⛏ IT'S SPOOKY SEASON 🎃💀🕷 When you study #bioacoustics and #bats, there is always an appropriate Halloween outing! This year, we went to the Mønsted limestone mine, a 60-km-long man-made cave system and THE place to be for winter hibernation (9000 bats surely can't be wrong!).

🦇CARNIVOROUS BAT RIVALS BIG CATS 🦁 IN HUNTING ABILITY Researchers from our lab incl. Leonie Baier & @laurastidsholt.bsky.social discovered that the fringe-lipped bats of Panama hunt for prey near their own body size - similar to large cats! doi.org/10.1016/j.cu... Fotos: Grant Maslowski

Your 🎃 weekend read🦇☕🛋️: The fascinating story behind the latest work from @laurastidsholt.bsky.social , @elena-tena.bsky.social & colleagues @ebdonana.bsky.social covered by @nytimes.com !

Bats Catch Migratory Birds and Eat Them in Midair

nytimes.com

Paper & incredible science alert: Our assistant professor @laurastidsholt.bsky.social & a passionate team @elena-tena.bsky.social @ebdonana.bsky.social found proof for greater nocturnal #bats 🦇 preying on migratory birds 🐦 AND devouring them in flight! #bioacoustics www.science.org/doi/10.1126/...

Intense days for our PhD student @hejfabienne.bsky.social. In a joint effort @au.dk ,#ntnu PhD student @leayero.bsky.social & #UiB, have deployed 8 geophones + 2 soundtrap hydrophones along a #DAS enabled #fibercable in #Svalbard to compare #shipnoise measurements in an Arctic fjord 🚢🔊🐋 #seasounds

Breaking News 🚨: Our #bioacoustics 🔉🐬🦇lab seeks a permanent new colleague in a tenure-track assistant professor 🥷position. Excited? Then join our vibrant group of 15 researchers, postdocs and PhD students at AU who work with #marinemammal #acoustics, #conservation #physiology and #effectsofnoise!

Tenure-track Assistant Professor in Bioacoustic Physiology - Ledig stilling på Aarhus Universitet

Ledig stilling ved Institut for Biologi - Zoofysiologi, Aarhus Universitet

au.dk

Ready to join me for some #marineacoustics research in the #arcticocean ? ❄️⛴️🎧🦭🐳 Where am I going? @bioacousticsau.bsky.social @marinemammalsau.bsky.social

📢Exciting news 1: We just launched our new Center for Active Sensing with Sound 🎧🥳 📢Exciting news 2: We are looking for 2 new PhD students 👩‍🎓👨‍🎓 in “Echolocation in bats🦇 and toothed whales 🐬” – read more here:

Successful day out in Aarhus Bay 🇩🇰⛴️ for our PhDs @cmarcolin.bsky.social @hejfabienne.bsky.social & MSc Matthias ⬇️deployed 8 hydrophone 🎧 stations with @innovasea.com releases and ⬆️recovered 2 after 9 months! There #bioacoustics PhD project investigates #shippingnoise and impacts on porpoises 🐬.

🔊 Paper alert! 🐬🎧 Noise of high-speed vessels 🚤 impairs the #biosonar ability of #harbourporpoises 🐬 - making it more difficult for them to 🤯 sense surroundings, 🧭 navigate and 🐟 hunt prey within several hundred meters. 🥳Huge contribution to understanding masking effects! 🌐 doi.org/10.1242/jeb....

🌊🔊 Hi Bluesky! I’m Julie, a master’s student at @bioacousticsau.bsky.social, studying underwater noise, soundscapes, and narwhal behavior in Northwest Greenland. I’ve worked on bycatch mitigation and behavior in harbour porpoises, and humpback whale photo-ID in Greenland. 🐳❄️ #bioacoustics #arctic

THIS IS HOW WE DO IT 🐬🎧- (when conducting #acousticmonitoring at #windfarms, e.g. for #Energinet in the #NorthSea) - The equipment is deployed ⚓🎙️, - then, stays out at sea for months🌊📆, - then, we recover it using acoustic releases ⚓✨, - and analyse it back home 🖥️🔊. #appliedbioacoustics

POV: Mia & Jakob successfully recovered an 🔊 acoustic array at a #WindFarm in the #NorthSea 🌊 - part of our #AcousticMonitoring work for #Energinet. With the gear safely back, we can now look (& listen🎧🖥️) for #porpoise 🐬 vocalisations to learn more about how they move around the wind turbines.

Happy Monday. 😅 Some of us where out in the North Sea this weekend 🌊 #justhangingaround bioacousticians #bioacoustics

Hej, 🔊🐋🦇we are the group behind Prof. Peter T. Madsen at the #Bioacoustics Lab @au.dk . We eavesdrop 🎧🤫 on oceans 🌊 and night skies 🌙 - turning sound into science to understand & protect #marinemammals 🐬🦭 and #bats 🦇 🧛🏻‍♀️. Join us for insights from the secret lives of #bioacousticians.