Lars Gamfeldt

@gamfeldt.bsky.social

3.4K followers 640 following 130 posts

Marine ecologist, interested in biodiversity change and its functional consequences. Much into algae. Professor at University of Gothenburg, Sweden, and coordinate the project KelpIT (@kelpit.bsky.social).
Avoids flying. Enjoys music, very much!
He/him .. more

Videos

Environmental science 47%

Geography 16%

Posts Replies Media Videos

Reposted by Lars Gamfeldt

Thomas Dahlgren @mucofloris.bsky.social · 18h

www.deepseareporter.com/sv/kosterhav...
Har du 11 min över idag så ägna dem åt denna film. Lågmäld men slagkraftig information om en marin jätteskandal.

Kosterhavets nationalpark – en papperspark? - Deep Sea Reporter

Deep Sea Reporter granskar bottentrålning i marina skyddade områden – del två.Som nationalpark omfattas Kosterhavet av Sveriges starkaste naturskydd. På pappret. I praktiken pågår omfattande bottentrå...

www.deepseareporter.com

Reposted by Lars Gamfeldt, Vojtěch Brlík, Pieter Vantieghem , and 1 more Lars Gamfeldt, Vojtěch Brlík, Pieter Vantieghem, Marcus W. Rhodes

Butterfly Conservation Europe @europebutterfly.bsky.social · 1d

The latest European Grassland Butterfly Indicator is out. It shows that grassland butterflies have declined by 47% since 1991, indicating a huge loss of grassland biodiversity. The data come from 16,150 transects & 15,000 volunteers. We are calling for urgent action. www.bc-europe.eu/documents/69...

Phengaris teleius (Scarce Large Blue) in a French meadow. One of the 17 species in the European Grassland Butterfly Index. Photo: Martin Warren)

Reposted by Jonathan A. Eisen, Lars Gamfeldt

ellenclark.bsky.social @ellenclark.bsky.social · 9d

Thank God for Bruce youtu.be/wWKSoxG1K7w

Reposted by Anne Applebaum, Mariana Mazzucato, Stephen M. Walt , and 181 more Anne Applebaum, Mariana Mazzucato, Stephen M. Walt, Michael E. Mann, Joanna Bryson, Anna O. Law, Marc Lynch, Kim L. Scheppele, Elizabeth Saunders, Rebecca Solnit, Archon Fung, Nandita Sharma, Matthew Bunn, Nancy Kanwisher, Yadvinder Malhi, Michael Wagner, John T. Jost, Stephan Lewandowsky, Robbert Sanderman, David M. Schultz, Simon Burgess, Marco Festa‐Bianchet, David M. Farrell, Will Jennings, Ashish Arora, Peter Thorne, Martin J. Attrill, Jesse M. Shapiro, Christina C. Hicks, Richard Betts, Richard J. Butler, Mattias Hallquist, Patrick A. Jansen, Jonathan A. Foley, Michael T. Meyer, Joshua S. Weitz, John R. Hutchinson, Mieke Van Houtte, Steve Peers, John McLaren, Andrew Watt, Andreas Ortmann, Tim Bale, Tom Shakespeare, Valerie P. Hans, Mark D. White, Victor Asal, Steven S. Smith, Jill Marshall, Rosemary A. Joyce, Caroline Krafft, Jürgen Maier, Leigh Sparks, Marina Jirotka, David Rothschild, Martin Gaynor, Elizabeth Stokoe, Melissa Johnson, Vincent Tiberj, Michael J. Allen, Rupert Read, Christian E. Weller, Ian M. Kinchin, Dawn J. Wright, Joseph Schafer, Hester Blum, Markus Jäntti, Anders Nilsson, Alison Phipps, Dominik Wiedenhofer, Ramón López Facal, Gerard H. Kuper, Libby Robin, David S. Cohen, Joni Lovenduski, Alan Stewart, Patrick Walsh, Sanford F. Schram, Kevin Carey, Shelly Lundberg, Inderjeet Parmar, Göran Bolin, Jussi T. Eronen, Marta Mìrazón Lahr, Raffaella Ravinetto, Smith, Peter Schöttler, Andrew Leyshon, Melanie C. Green, Janet Murray, Steven High, Jo Barraket, David R. Miller, Robert Wolfe, Duncan Bell, Jesús Rodríguez Pomeda, Patrick Svensson, Wilson McLeod, Stephen D. Murphy, Gerald Friedman, Stacy D. VanDeveer, Fabio Giglietto, Beatriz Gallardo Paúls, Lyndsey Stonebridge, Juan Moreno‐Cruz, Todd Pugatch, Howard Stevenson, Stephen Ryan, Elizabeth Stevenson, Michael D. McDonald, Anne Norton, Josef Früchtl, Manuel Puppis, Graeme Warren, Talia Schaffer, Graham Dutfield, Marco Haan, Antoine Bernard de Raymond, Fredrik Albritton Jonsson, Paul Fisher, Michelle Williams, Alberto Corsín Jiménez, Christian Fisch, Lisa Diedrich, Nicola Carr, Enrique Fatás, Philipp Sarasin, Jessica Silbey, Feargal Cochrane, Stuart White, Mary Jane Curry, Susan Strasser, Marko Lindroos, Claire L. Adida, Sharon Erickson Nepstad, Caterina Froio, Andrew Guthrie Ferguson, Patrick Meier, Vaughan S. Roberts, Raúl Pacheco-Vega, Ryan K. Brook, Florian Keusch, Andrew Rudalevige, James Connelly, Olivier Jourdan, Hisham Zerriffi, Sean P. Corcoran, Patrick Stokes, Cullen S. Hendrix, Jon Dean, Eric J. Sundquist, Guillaume Allègre, Eric J. Segall, Melanie O’Brien, Jason A. Heppler, Karen O’Leary, Uwe M. Martens, Almut Schulze, Alexander Woywodt, Thomas D. Carroll, David S. Tanenhaus, Kate Jackson, Pam Jarvis, Suzanne Conklin Akbari, Mary McAuliffe, Aviel Roshwald, Pepper D. Culpepper, Émilien Ruiz, Nathan P. Kalmoe, Ryan Calo, Jaap Kooijman, Aidan O’Sullivan, Dan Immergluck, Jeannette Sutton, Fiona Armstrong, Beth Tellman, Lorna Hughes, Fabian Holt, Ernesto Castañeda, David Spurrett, Dunlap, Stuart Shapiro, David Darmofal, Lars Gamfeldt

Bruce Springsteen @brucespringsteen.net · 9d

I wrote this song on Saturday, recorded it yesterday and released it to you today in response to the state terror being visited on the city of Minneapolis. It’s dedicated to the people of Minneapolis, our innocent immigrant neighbors and in memory of Alex Pretti and Renee Good.

Stay free

Bruce Springsteen - Streets Of Minneapolis (Official Audio)

YouTube video by Bruce Springsteen

youtu.be

Reposted by Lars Gamfeldt

Jarrett Byrnes @jebyrnes.bsky.social · 17d

Kiddo’s first randomized controlled blocked design. Gotta start ‘em right.

A cute kiddo standing with a plant experiment. There are four blocks in the table, with each block having one replicate of three treatments. Blocks are labeled and ivy pots are labeled with treatment and pot number with labels varying by color matching treatment. Treatments are randomized within blocks. Heck yeah. She’s doing it right for the science fair!

Reposted by Lars Gamfeldt

Victor Galaz @vgalaz.bsky.social · Dec 17

“[M]otsvarande produktionen från fem kärnkraftsreaktorer”.

Alla de organisationer som hajpat användningen av AI i Sverige får hemskt gärna återkomma med en plan på hur detta ska gå ihop med mänskliga elpriser och klimatmål.

sverigesradio.se/play/artikel...

Varningen: Stora datacenter kan höja elpriset - Ekot

I år är ansökningarna om stora datacenter i Sverige som vill ansluta sig till elnätet fem gånger högre än förra året.”Vi har ansökningar på över 5000 megawatt ...

sverigesradio.se

Reposted by Anne Ebeling, Lars Gamfeldt

Helmut Hillebrand @hillebr1.bsky.social · Dec 12

More than a year ago researchers from @hifmb.de and @icbm-uol.bsky.social started to write about different perspectives on marine biodiversity change from natural and social science perspectives. This morphed into a review paper that was published online today link.springer.com/article/10.1... 🧪

Towards a broader perspective on marine biodiversity change - Marine Biodiversity

Biodiversity decline jeopardizes the foundation of natural ecosystems and human well-being, a concern that prompted major global agreements aiming to bend the curve towards a net positive biodiversity...

link.springer.com

Reposted by Lars Gamfeldt

ALOK @alokvmenon.bsky.social · Dec 11

i love people!

Reposted by Lars Gamfeldt

Stelios Katsanevakis @skatsanevakis.bsky.social · Nov 27

But what is the environmental status of European waters? Consult the following paper for an overview:
👇
conbio.onlinelibrary.wiley.com/doi/full/10....

Lars Gamfeldt @gamfeldt.bsky.social · Nov 19

Can someone point me to recent papers about the decline, and lack of recovery, for the #kelp Macrocystis in #Tasmania?
I have Butler et al 2020 MEPS.
#Ocean #warming. #Herbivory.
🧪🦑

Reposted by Erle C. Ellis, James M. Bullock, Tuomas Mattila , and 3 more Erle C. Ellis, James M. Bullock, Tuomas Mattila, Victor Galaz, Anthony Burke, Lars Gamfeldt

Zeke Hausfather @hausfath.bsky.social · Nov 13

A new Nature paper accompanying the Global Carbon Budget finds that the land and ocean sinks are 25% smaller and 7% smaller, respectively, than they would have been without the effects of climate change over 2015-24:

Emerging climate impact on carbon sinks in a consolidated carbon budget | Nature

Despite the adoption of the Paris Agreement ten years ago, fossil CO2 emissions continue to rise, pushing atmospheric CO2 levels to 423 ppm in 2024 and driving human-induced warming to 1.36°C, within years of breaching the 1.5°C limit 1,2. Accurate reporting of anthropogenic and natural CO2 sources and sinks is a prerequisite to tracking the effectiveness of climate policy and detecting carbon sink responses to climate change. Yet notable mismatches between reported emissions and sinks have so far prevented confident interpretation of their trends and drivers 1. Here, we present and integrate recent advances in observations and process understanding to address some long-standing issues in the global carbon budget estimates. We show that the magnitude of the natural land sink is substantially smaller than previously estimated, while net emissions from anthropogenic land-use change are revised upwards 1. The ocean sink is 15% larger than the land sink, consistent with new evidence from oceanic and atmospheric observations 3,4. Climate change reduces the efficiency of the sinks, particularly on land, contributing 8.3 ± 1.4 ppm to the atmospheric CO2 increase since 1960. The combined effects of climate change and deforestation turn Southeast Asian and large parts of South American tropical forests from CO2 sinks to sources. This underscores the need to halt deforestation and limit warming to prevent further loss of carbon stored on land. Improved confidence in assessments of CO2 sources and sinks is fundamental for effective climate policy.

www.nature.com

Lars Gamfeldt @gamfeldt.bsky.social · Nov 10

Question: Does anybody know of papers studying the connection between #yeast #biodiversity and #ecosystem #functioning?
Can coexisting yeast strains show complementarity and niche partitioning?
Any articles would be highly appreciated.
🧪

Lars Gamfeldt @gamfeldt.bsky.social · Nov 10

Description for the call can be found here.
www.vr.se/english/just...
I can communicate interested people to my Department (Dep. Marine Sciences) for potential nominations. (3) of (3)

The Swedish Research Council is setting up a programme for strategic recruitment of associate senior lecturers

In January 2026, the Swedish Research Council will issue a call for career support funding for associate senior lecturers. Higher education institutions are invited to nominate candidates whose resear...

www.vr.se

Lars Gamfeldt @gamfeldt.bsky.social · Nov 10

Nominations need to be via my department, and timeline is extremely short (a week from now). Scientific achievements need to be "Highly excellent" as defined by the Swedish Research Council. There will be further calls 2026. (2) of (3)
Please

Reposted by Simon Roux, Dustin J. Marshall

Lars Gamfeldt @gamfeldt.bsky.social · Nov 10

Opportunity!
Anybody knows of young marine ecologists (within 7 years from earned PhD) that would like to come to Gothenburg, Sweden, for a nationally funded Assistant Professorship? It is highly competitive but well funded. (1) of (3)

Lars Gamfeldt @gamfeldt.bsky.social · Oct 6

Amazing (and prestigious) opportunity in Sweden: The Crown Princess Victoria Professorship in Biodiversity.
The announcement can be found here: web103.reachmee.com/ext/I005/103...
I've heard that the position will come with a lot of resources.
🧪 #biodiversity

The Crown Princess Victoria Professorship in Biodiversity

Professorship in Biodiversity. The University of Gothenburg hereby announces a unique and prestigious position – the

web103.reachmee.com

Reposted by Lars Gamfeldt

Dr. Lauren L. Smith @laurenleealgae.bsky.social · Sep 26

Super excited to share this work looking at seaweed trait differences across microhabitat! Proud of this team of undergraduates for working so hard to make get this paper published. onlinelibrary.wiley.com/share/author...

The team of (5) undergraduates that led this research project at an scenic lookout in Mo'orea, French Polynesia.

Reposted by Lars Gamfeldt

Dr. Brooke Weigel @brookeweigel.bsky.social · Sep 12

Fascinating dive in a kelp forest to urchin barren transition zone yesterday in Monterey! 🌊🤿

Reposted by Lars Gamfeldt

Prof. Anna Metaxas @annamet.bsky.social · Sep 9

How very disappointing and backwards…
www.theguardian.com/environment/...

Bottom trawling to continue in English protected waters, government rules

Defra says blanket ban on ‘destructive’ fishing practice disproportionate as MPs urge minister to reconsider

www.theguardian.com

Reposted by Lars Gamfeldt

Trine Bekkby @trinebekkby.bsky.social · Sep 5

No drones, no AI, not very high-tech at all, only hard working people shaking and rinsing Ascophyllum to get all associated fauna out for biodiversity analyses 💪🏼🌱 #PhycologyFriday

Lars Gamfeldt @gamfeldt.bsky.social · Sep 3

The importance of large herds of mega-herbivores. Interesting paper in Science. #EcosystemFunctioning
www.science.org/doi/10.1126/...
🧪

Yellowstone’s free-moving large bison herds provide a glimpse of their past ecosystem function

Although momentum is building to restore bison across North America, most efforts focus on small, managed herds, leaving unclear how large, migrating herds shape landscapes and whether their effects enhance or degrade ecosystems. We assessed carbon and ...

www.science.org

Reposted by Erle C. Ellis, Emily Grubert, Lars Gamfeldt , and 1 more Erle C. Ellis, Emily Grubert, Lars Gamfeldt, Julen Astigarraga

Markus Eichhorn @markuseichhorn.bsky.social · Sep 3

The achievable carbon uptake from planting trees is much lower than previous estimates, and even lower than many nations have committed to. New paper by Wang et al. in Science. www.science.org/doi/10.1126/... 🧪🌏🌳🌲🌐

Fig. 3. Estimated mitigation potential from forestation varies with land availability assumptions. (A) Global and regional ecosystem carbon sequestration. BA19 (10), GR17 (8), and Qin24 (24) refer to respective assumptions of land potentially available for forestation. The “committed” assumption considers only national commitments, and “achievable” shows currently achievable land limited by availability defined in Qin24 (see materials and methods section M3). (B) The currently achievable mitigation potential varies among countries and income groups. Country-specific data are available in data S3 (24). Country codes and corresponding income groups can be found in table S6.

Reposted by Richard S.J. Tol, Lars Gamfeldt

🍁🇨🇦Emotional Support Canadian🇨🇦🍁 @emosupportcanadian.bsky.social · Sep 3

Woah!...

Reposted by Lars Gamfeldt

Bryan White, MS Bio, MPH 🧬 @crvscience.com · Aug 31

Despite all my rage, I’m still just a kelp in a cage.

Lars Gamfeldt @gamfeldt.bsky.social · Aug 31

Smashing urchins.

www.theguardian.com/us-news/2025...
🦑🧪

‘The forgotten forest’: how smashing 5.6m urchins saved a California kelp paradise

Pollution, warm oceans and hungry urchins devastated Pacific kelp. Now, thanks to divers with hammers, one of the world’s most successful rehabilitation projects has helped it rebound

www.theguardian.com

Reposted by Lars Gamfeldt

Jeannette Eggers @jeannetteeggers.bsky.social · Aug 28

Vi måste avverka mer för att kunna skydda mer skog? 🙃

Lars Gamfeldt @gamfeldt.bsky.social · Aug 27

That’s a lot of Ascophyllum!

Lars Gamfeldt @gamfeldt.bsky.social · Aug 27

”Utan intäkter från ett aktivt skogsbruk saknas resurser för skogsvårdande åtgärder och för att utveckla den biologiska mångfalden.”
Vad menas med ”utveckla” tro?

Jeannette Eggers @jeannetteeggers.bsky.social · Aug 27

Suck.

www.dn.se/debatt/farre...