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Lars Bejder

@lbejder1971.bsky.social
1.6K followers 288 following 63 posts

Professor at the Hawaii Institute of Marine Biology. Marine mammal conservation biologist. I work with management agencies to optimize conservation outcomes. Proud Dad! www.mmrphawaii.org

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Lars Bejder @lbejder1971.bsky.social · 26/08/2026
New paper out in Marine Ecology Progress Series by Nemeth et al: Energetic scaling of propulsive costs across body sizes in humpback whales. www.int-res.com/abstracts/me...
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Lars Bejder @lbejder1971.bsky.social · 12/08/2026
Will Shrinking Spinner Dolphin Populations Spur More Protections? www.civilbeat.org?p=1801995&ut...
civilbeat.org
Will Shrinking Spinner Dolphin Populations Spur More Protections?
Researchers from the University of Hawaiʻi found that the number of young spinner dolphins is only half of what it needs to be to maintain a healthy population.
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Lars Bejder @lbejder1971.bsky.social · 01/08/2026
How off the press: Hollers et al. quantify the energetic consequences of going from rest to non-resting in humpback whales. Super helpful when evaluating impacts of disturbance academic.oup.com/conphys/arti... www.mmrphawaii.org/post/new-pub... @conphysjournal.bsky.social
mmrphawaii.org
New publication: Energetic benefits of resting behaviour in humpback whale mother–calf pairs revealed by biologging and UAS-photogrammetry
We are excited to share our newest publication in Conservation Physiology on humpback whale mother-calf energetics written by PhD candidate Gussie Hollers and coauthors! Link to the full paper: doi.or...
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Conservation Physiology @conphysjournal.bsky.social · 30/07/2026
🐋 New #BioLogging article: Human disturbance and ecosystem changes are driving higher energy depletion in humpback whale mother–calf pairs, raising concerns for whale health and population recovery. Read here⬇️ academic.oup.com/conphys/arti...
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Alecburslem @alecburslem.bsky.social · 28/07/2026
New paper! Lead author @noemiefreymond.bsky.social used a hybrid approach combining tag data & physical modelling to show that the timing & hydrodynamic effects of bubble releases by sperm whales during drift dives indicate deliberate & active buoyancy regulation, even during sleep.
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Lars Bejder @lbejder1971.bsky.social · 06/07/2026
Despite years (!) of pushing for time area closures by researchers, the Marine Mammal Commission and the independent Scientific Review Group, NOAA has not acted. This is what happens when management does not act...
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Lars Bejder @lbejder1971.bsky.social · 06/07/2026
New publication by Vivier et al - concerning results: Drone photogrammetry reveals age-structure shifts with potential consequences for the viability of spinner dolphins in Hawai'i www.int-res.com/journals/esr...
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Stephanie Stack @stephaniestack.bsky.social · 12/06/2026
Hawaii’s humpback whales like to steal the spotlight, but their cousins the false killer whales desperately need our help. www.iflscience.com/nutritional-... #marmam
iflscience.com
False Killer Whales In One Of The Last Groups On Earth Are Declining Fast At 3.5 Percent Per Year – Heatwaves And Prey Shortages To Blame
The first-ever study of body condition in these whales had some concerning findings, including one individual that lost over 200 kilograms in just 10 weeks.
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Lars Bejder @lbejder1971.bsky.social · 03/06/2026
Thank you for your question. No, the are non-invasive and stick on whales with suction-cups. Pretty neat, actually! Thank you.
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Lars Bejder @lbejder1971.bsky.social · 03/06/2026
Recently we have transitioned to tagging whales from the sky…. Yes, recent technological advances are allowing us to tag whales via our drones. This method has several advantages: it is safer for the whales and safer for us humans. See blog for further details: www.mmrphawaii.org/post/suction...
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Trevor A. Branch @trevorabranch.bsky.social · 05/05/2026
If you are interested in working with me on a PhD on the effects of killer whale fear on baleen whale ecology, behavior, and evolution... and you would be eligible for the fellowship below... contact me! www.simonsfoundation.org/grant/simons...
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Dan Garisto @dangaristo.bsky.social · 23/04/2026
NEW: NSF has been funding research at a fraction of its historic rate. Last week, the agency finally began distributing money to its directorates and is now likely to pick up the grantmaking pace. But these allocations also amount to substantial cuts across the sciences. My reporting:
nature.com
Delays have kept new NSF grants to a trickle — that could be about to change
The agency is finally ready to distribute a spate of new grants, but it is also preparing substantial cuts to areas such as biological and social sciences.
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Wild Dolphin Project @dolphinresearch.bsky.social · 24/04/2026
Did you hear the good news? The House has pulled the ESA Amendments Act (H.R. 1897) from the floor after facing unexpected opposition, including from several Republican members. The bill aimed to weaken parts of the Endangered Species Act, especially around how protections can impact development.
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Philip Patton @ptpatton.bsky.social · 20/04/2026
Job Alert: Smithsonian's National Zoo and Conservation Biology Institute is hiring a Data Scientist with robust quantitative skills, knowledge of best practices with data management, and an ability to collaborate across units. Based in Front Royal, VA. trustcareers.si.edu/postings/c63...
trustcareers.si.edu
Ecological Data Scientist, IS-1560-12
Job Opening: Ecological Data Scientist, IS-1560-12 at National Zoo and Conservation Biology Institute in Front Royal, VA.
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Alecburslem @alecburslem.bsky.social · 24/03/2026
New publication! 'Headbutting Behavior Between Sperm Whales Documented Using Unoccupied Aerial Vehicles' Out in @marinemammalogy.bsky.social in collaboration with @lrendell.bsky.social, @azwhlab.bsky.social and @asociaciontursiops.bsky.social. doi.org/10.1111/mms....
doi.org
Headbutting Behavior Between Sperm Whales Documented Using Unoccupied Aerial Vehicles
Click on the article title to read more.
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Philip Patton @ptpatton.bsky.social · 20/03/2026
New paper alert! Alexandra Vanderzee found that AnyDorsal can effectively identify Risso's dolphins. This is a fun result because a) AnyDorsal wasn't trained on Risso's and b) it shows AnyDorsal can balance scars dorsal notches as separate ID information onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Evaluating the Effectiveness of a Multispecies Matching Algorithm Applied to a Novel Species, Risso's Dolphins (Grampus griseus)
Automated matching algorithms are an increasingly valuable tool in marine mammal research. A multispecies matching algorithm, originally described in Patton et al. analyzes distinctive morphological ...
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Lars Bejder @lbejder1971.bsky.social · 20/03/2026
Congrats to all the authors. Great work.
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Stephanie L King @stephanielking.bsky.social · 15/02/2026
Fantastic opportunity to work with us at Shark Bay Dolphin Research 👇🏻
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Stephanie Stack @stephaniestack.bsky.social · 21/01/2026
Hawaii’s #falsekillerwhales are slipping closer to extinction… read more here: www.mauimagazine.net/false-killer... #marmam
mauimagazine.net
The Whales Between the Lines
False killer whales were listed as endangered in 2012. More than a decade later, the decline continues. It’s not too late.
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Lars Bejder @lbejder1971.bsky.social · 18/11/2025
Thanks for highlighting this work. Here is a link to the paper: journals.biologists.com/jeb/article-...
journals.biologists.com
Daily energetic expenditure and energy consumption of short-finned pilot whales
Summary: Multiple datastreams are combined to generate a complete energetics model for Hawaiian short-finned pilot whales.
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Lars Bejder @lbejder1971.bsky.social · 18/11/2025
Published! Gough et al: Daily energetic expenditure and energy consumption of short-finned pilot whales. Drones+tags+diet reveal pilot whales need ~142 squid/day @marinemammalogy.bsky.social @jexpbiol.bsky.social @acs-ps.bsky.social @uhmanoa.bsky.social journals.biologists.com/jeb/article-...
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Peter Corkeron @petercorkeron.bsky.social · 07/10/2025
Another great paper on baleen whales & calving 🐳🌍🦑🧪
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Lars Bejder @lbejder1971.bsky.social · 28/09/2025
Go Team Europe #RyderCup
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Trevor A. Branch @trevorabranch.bsky.social · 24/09/2025
New! Longer body size means more female calves in baleen whales! By Zoe Rand, Sarah Converse and myself Paper: royalsocietypublishing.org/doi/10.1098/... Press: www.washington.edu/news/2025/09...
washington.edu
Longer body size means more female calves for baleen whale moms
University of Washington researchers found, in historical whaling data, that longer baleen whale mothers were more likely to birth female calves than males. These results run contrary to a leading...
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Lars Bejder @lbejder1971.bsky.social · 24/09/2025
Looking forward to reading his !
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Darren Croft @darrencroft.bsky.social · 24/09/2025
We are hiring (Post number 2) - join us as a graduate research assistant to support killer whale research. Collaboration with @samellisq.bsky.social @drwhale.bsky.social Prof Dan Franks (York) start 1st Nov (or ASAP) end 31st Oct 2028. Apps close on 19th Oct. jobs.exeter.ac.uk/hrpr_webrecr...
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Alecburslem @alecburslem.bsky.social · 28/07/2025
It's official! I'm now the newest postgraduate research fellow at the marine mammal research program at the University of Hawaii at Mānoa. Bio and blog post with more details here: www.mmrphawaii.org/alec-burslem www.mmrphawaii.org/post/shippin...
mmrphawaii.org
Shippin' out from Scotland
Written by MMRP PostDoc Alec BurslemFor a while it looked like I was going to be a chef. It was 2009, and after a couple of disappointing A-level results in biology and chemistry had shaken my confide...
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Lauren Eckert, Ph.D. @laureneeckert.bsky.social · 21/08/2025
New collaborative research out today with @raincoast.org explores the deep-roots of conflict over killer whale and Chinook management in the Salish Sea - proposing new approaches to transform intractable conflicts. www.timescolonist.com/environment/...
timescolonist.com
Study reveals anglers, conservationists share surprising common ground in orca-chinook fight
Amid debate over protecting chinook salmon for southern resident killer whales, a study found anglers and conservationists share key values, which could resolve the conflict.
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Lars Bejder @lbejder1971.bsky.social · 19/08/2025
Impressive work by Cam Nemeth (not on BlueSky). We hypothesized that the significant lift force produced by the humpback whale’s large pectoral flippers result in them being the only species executing tight, high-speed, sustained turns characteristic of bubble-net feeding doi.org/10.1242/jeb....
doi.org
The key to bubble-net feeding: how humpback whale morphology functionally differs from other baleen whales
Summary: Humpback whale turning performance during solitary bubble-net feeding exceeds the observed capabilities of other baleen whales.
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Journal of Experimental Biology @jexpbiol.bsky.social · 19/08/2025
You can find the first JEB additional language abstract by Cameron Nemeth and colleagues in #Hawaiian accompanying their paper, The key to bubble-net feeding: how humpback whale morphology functionally differs from other baleen whales at journals.biologists.com/jeb/article/...
Screenshot of the Research Article, The key to bubble-net feeding: how humpback whale morphology functionally differs from other baleen whales, by Cameron Nemeth, William T. Gough, Paolo S. Segre, Frank E. Fish, Andrew Szabo et al. The publishing information states: © 2025. Published by The Company of Biologists | Journal of Experimental Biology (2025) 228, jeb249607. doi:10.1242/jeb.249607. The first line of the Abstract reads, 'Maneuverability in cetaceans is facilitated by pectoral flippers, flukes and spinal flexibility, features that are pronounced in humpback whales (Megaptera novaeangliae).'. The Research article includes an Additional Language Abstract, in Hawaiian. The first sentence of the Additional Language Abstract reads, 'Kōkua ʻia ka huli ʻana o nā cetaceans e ka ʻēheu, hiʻu a me ka palupalu o ka iwikuamoʻo, ahuwale nō kēia mau mea i ke koholā (Megaptera novaeangliae)'.
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Lars Bejder @lbejder1971.bsky.social · 08/06/2025
Happy World Oceans day : youtu.be/xmrksxoTYEk
youtu.be
In the Wake of Whales: New Discoveries That Could Change Ocean Conservation
YouTube video by Dolphin Quest
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Lars Bejder @lbejder1971.bsky.social · 22/05/2025
Am intrigued!
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Corey Bradshaw @conservbytes.bsky.social · 07/05/2025
Journal editors struggling to find reviewers — there are some bloody good reasons why conservationbytes.com/2025/05/07/j...
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Alecburslem @alecburslem.bsky.social · 19/04/2025
Had a great time this week presenting at the Scottish oceans institute seminar series, giving an overview of my PhD work on sperm whale behavior and physiology. Recording here: universityofstandrews907-my.sharepoint.com/:v:/g/person... @seamammalresearch.bsky.social @uniofstandrews.bsky.social
universityofstandrews907-my.sharepoint.com
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Olivier Gimenez 🦦 @oaggimenez.bsky.social · 11/04/2025
🚨🎉 New paper "Ten quick tips to get you started with Bayesian statistics", hope you'll like it 😇🤗 ✍🏽 w/ Andy Royle, Marc Kéry and Chloé Nater 🔗 dx.plos.org/10.1371/jour... @plos.org @cnrsecologie.bsky.social @cnrsoccitanieest.bsky.social @umontpellier.bsky.social
Graphical summary of 10 quick tips to get started with Bayesian statistics and how they fit into a larger view of an analytical workflow with Bayesian models.
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Lars Bejder @lbejder1971.bsky.social · 08/04/2025
Just two more days to support Marine Mammal Research in Hawaii. Please join us: givingday.uhfoundation.org/giving-day/9...
givingday.uhfoundation.org
UH Giving Day : April 9, 2025
Join us for our opportunity to uplift every island, every campus, and every student in our UH ‘ohana.
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Lars Bejder @lbejder1971.bsky.social · 03/04/2025
We’d love your support to protect marine mammals in Hawaii givingday.uhfoundation.org/giving-day/9...
givingday.uhfoundation.org
UH Giving Day : April 9, 2025
Join us for our opportunity to uplift every island, every campus, and every student in our UH ‘ohana.
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Lars Bejder @lbejder1971.bsky.social · 02/04/2025
The Marine Mammal Research Program at the University of Hawaii needs your help. See link for donation page: lnkd.in/gzC5KCWZ #marinemammals
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AU Bioacoustics @bioacousticsau.bsky.social · 02/04/2025
📢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:
phd.nat.au.dk
Echolocation in bats and toothed whales
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Lars Bejder @lbejder1971.bsky.social · 22/02/2025
Looking forward to reading this. Thanks for posting !
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Lars Bejder @lbejder1971.bsky.social · 05/02/2025
A huge congratulations to Martin van Aswegen for successfully defending his PhD discussing on the energetic costs of pregnancy and growth in humpback whales ! #marinemammals
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Alex Knapp @thealexknapp.bsky.social · 02/02/2025
The National Science Foundation says that it is complying with Friday's court order and will resuming funding to grants and projects. new.nsf.gov/executive-or...
new.nsf.gov
NSF Implementation of Recent Executive Orders
Information for the NSF community regarding executive orders.
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Lars Bejder @lbejder1971.bsky.social · 30/01/2025
Could I please be added to this list? With thanks, Lars.
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Lars Bejder @lbejder1971.bsky.social · 17/01/2025
3/3: conbio.onlinelibrary.wiley.com/doi/full/10....
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Lars Bejder @lbejder1971.bsky.social · 17/01/2025
2/n: Incredible effort with >50 co-authors, across 39 photo-ID datasets representing 24 cetacean species.
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Lars Bejder @lbejder1971.bsky.social · 17/01/2025
1/n: New publication in Conservation Biology led by @ptpatton.bsky.social Title: Optimizing automated photo identification for population assessments. #marinemammals conbio.onlinelibrary.wiley.com/doi/full/10....
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Lars Bejder @lbejder1971.bsky.social · 16/01/2025
Looking forward to heading to Hawaii for field work soon ….
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Lars Bejder @lbejder1971.bsky.social · 14/01/2025
#marinemammals
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Lars Bejder @lbejder1971.bsky.social · 14/01/2025
Honor to present @aiasdk.bsky.social on collaborative humpback whale research seeking to understand pop. consequences of climate change. Included results from van Aswegen et al physoc.onlinelibrary.wiley.com/doi/10.1113/... physoc.onlinelibrary.wiley.com/doi/10.1113/... Thx @cjaw.bsky.social :sketch
physoc.onlinelibrary.wiley.com
Energetic cost of gestation and prenatal growth in humpback whales
Abstract figure legend This study estimated the energetic cost of gestation in humpback whales. First, relative birth size was estimated from body length measurements of mother–fetus pairs from histo...
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SMRU Ecophysiology Lab @smruecophys.bsky.social · 13/01/2025
Some of our group’s research published last November quantifying and reducing the costs from animal-borne tags on study animals #biologging royalsocietypublishing.org/doi/10.1098/...
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