Lightnews — Scholar-powered news

Lars Gamfeldt @gamfeldt.bsky.social · 2d

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

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Reposted by Lars Gamfeldt

Dr. Lauren L. Smith @laurenleealgae.bsky.social · 12d

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.

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Reposted by Lars Gamfeldt

Dr. Brooke Weigel @brookeweigel.bsky.social · 26d

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

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Reposted by Lars Gamfeldt

Prof. Anna Metaxas @annamet.bsky.social · 29d

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

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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

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Reposted by Lars Gamfeldt

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

Woah!...

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Reposted by Lars Gamfeldt

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.

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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

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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.

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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

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Reposted by Lars Gamfeldt

Jeannette Eggers @jeannetteeggers.bsky.social · Aug 28

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

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Lars Gamfeldt @gamfeldt.bsky.social · Aug 27

That’s a lot of Ascophyllum!

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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...

DN Debatt. ”Färre regler och ökad tillväxt behövs i Sveriges skogar”

DN Debatt. Göran Örlander för Skogsutredningen: En ökad skogstillväxt kan realisera stora värden i form av klimatnytta, ekonomi och sysselsättning.

www.dn.se

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Lars Gamfeldt @gamfeldt.bsky.social · Aug 27

Ojoj, vilket inlägg i debatten om skogsbruk. Monokulturer och nya trädarter…

Jeannette Eggers @jeannetteeggers.bsky.social · Aug 27

Suck.

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

DN Debatt. ”Färre regler och ökad tillväxt behövs i Sveriges skogar”

DN Debatt. Göran Örlander för Skogsutredningen: En ökad skogstillväxt kan realisera stora värden i form av klimatnytta, ekonomi och sysselsättning.

www.dn.se

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Reposted by Lars Gamfeldt

Janne M. Korhonen @jmkorhonen.fi · Aug 26

Once again on the “achievements” of the most right wing government in the history of #Finland. Sigh.

To warn others to learn from our mistakes.

On the left, government projections of new jobs (blue) vs the reality (red); on the right, distribution of tax cuts by income decile.

On average, the poorest 10% will receive 17 euros per year, those in the middle of the distribution (deciles 4 to 6) 254-424 euros, and those in the top 10% 1553 euros per year.

The top 1% and 0.1% will get far, far more, but just how much is difficult to calculate.

From https://yle.fi/a/74-20179239

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Reposted by Lars Gamfeldt

Trine Bekkby @trinebekkby.bsky.social · Aug 25

Greetings from Arctic Norway, 70.7°N. Tomorrow we go to one of our Ascophyllum sites to measure Asco properties, identify all species in frames and associated with the rockweed. Or aim is to compare structure, function and biodiversity in harvested areas with the unharvested control.

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Reposted by Lars Gamfeldt

Nicole Dubilier @nicoledubilier.bsky.social · Aug 23

I missed this when it came out last September - excellent essay!
Not-so-mutually beneficial coral symbiosis: Current Biology www.cell.com/current-biol...

Not-so-mutually beneficial coral symbiosis

The partnership between corals and their intracellular algal symbionts has long been a textbook example of mutually beneficial association. In this essay, Mikhail Matz argues for an updated view in which the coral acts more as a farmer of algal cells to support its own growth.

www.cell.com

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Reposted by Lars Gamfeldt

Mazeson @mazeson.bsky.social · Aug 19

Läget är allvarligt för Sveriges biologiska mångfald.
Många av de arter och livsmiljöer som finns i Sverige är idag under stor press. Endast omkring 40 procent av arterna och 20 procent av livsmiljötyperna bedöms ha gynnsam bevarandestatus i hela landet.

www.naturvardsverket.se/om-oss/aktue...

Läget är allvarligt för Sveriges biologiska mångfald

2025-08-19 PRESSMEDDELANDE Många av de arter och livsmiljöer som finns i Sverige är idag under stor press. Endast omkring 40 procent av arterna och 20 procent av livsmiljötyperna bedöms ha gynnsam bev...

www.naturvardsverket.se

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Reposted by Lars Gamfeldt

Matt Bracken @brackenlab.bsky.social · Aug 19

Just out in @jexpbiol.bsky.social: Great work by @racinerangel.bsky.social documenting effects of a 6-month factorial field manipulation of warming X CO2 on intertidal mussel shell thickness, strength, & corrosion. #SitkaNSF @cascadejbs.bsky.social journals.biologists.com/jeb/article/...

CO2 X warming treatment in a tide pool. Black boxes on the high ledge hold batteries & circuit boards, with tubes leading to heating elements in the pool. The smaller black box generates CO2, which bubbles into the pool.

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Reposted by Lars Gamfeldt

Fernando P. Lima @fplima.bsky.social · Aug 17

Climate change threatens even the tough ones. Our new study shows that even Ascophyllum nodosum, a tough brown seaweed, struggles with rapid temperature swings during low tides, and populations across Europe vary in their heat tolerance.
Read more here: jecologyblog.com/2025/05/20/c...

Can Resilient Species Keep Up? Climate Change Threatens Even Tough Seaweeds

Fernando Lima, CIBIO/BIOPOLIS, University of Porto, Portugal, discusses his article: Simulated intertidal heat stress on the brown seaweed Ascophyllum nodosum demonstrates differential population s…

jecologyblog.com

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Reposted by Lars Gamfeldt

Fernando P. Lima @fplima.bsky.social · Aug 17

New paper out! 🌊 We show that southern populations of Fucus spp. are especially vulnerable to repeated low-tide heat stress — a key factor for their future under climate change.
👉 doi.org/10.1016/j.ma...

doi.org

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Reposted by Lars Gamfeldt

KelpIT @kelpit.bsky.social · Aug 14

Well this is worrying.

Institute for Marine and Antarctic Studies @imas-utas.bsky.social · Aug 14

A Trans-Tasman collaboration between IMAS & @aucklanduni.bsky.social researchers shows Longspined Sea Urchins are a huge threat to NE #NewZealand marine ecosystems. And as the region is at lower latitudes, the impact there could outstrip what we've seen in #Tasmania.

Study: doi.org/10.1016/j.je...

Urchin barrens in NE Tasmania. Credit: Matt Testoni IMAS

Urchin barrens in NE New Zealand. Credit: Crispin Middleton | SeacologyNZ

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Reposted by Lars Gamfeldt

The Perfect Specimen @perfect-specimen.bsky.social · Aug 13

How many ants??? 20 quadrillion!!! Here's the paper with the maths... www.pnas.org/doi/10.1073/... 🐜🐜🐜🐜🐜

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Lars Gamfeldt @gamfeldt.bsky.social · Aug 13

Hot take.
Conferences should be at locations where as many people as possible can get as easy as possible (minimizing transportation and CO2 footprint), not where people want to take vacation.

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Reposted by Lars Gamfeldt

Alf Norkko @alfnorkko.bsky.social · Aug 11

Check out our new review paper, championed by Lydia White, "A path towards appropriate degradation experiments for assessing carbon sequestration potential of macroalgae". Read it here: besjournals.onlinelibrary.wiley.com/doi/10.1111/... @coastclim.bsky.social @tvarminne.bsky.social #mCDR

A path towards appropriate degradation experiments for assessing carbon sequestration potential of macroalgae

We systematically reviewed literature on macroalgal degradation. To date, most degradation experiments are carried out in aquaria or shallow environments, span short timescales or rarely incorporate ....

besjournals.onlinelibrary.wiley.com

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