Antoine Cabon

Fig. 3 Resource (here C and water) uptake, transport, and consumption shape resource distribution along the leaf-to-root axis, influencing C partitioning and plant functional traits under changing environmental conditions.

#TansleyInsight | Distal to proximal: a continuum of drivers shaping tree growth and carbon partitioning

@acabon.bsky.social 👇

📖 nph.onlinelibrary.wiley.com/doi/10.1111/...

#LatestIssue #PlantScience #TansleyMedal

For the first time, independent monitoring data from #ICOSCities confirms that GHG emissions in Paris have decreased by 25% in the last decade, aligning almost perfectly with the 26% CO₂ reduction reported by Airparif (2015–2022).

👉 Read more in FLUXES: www.icos-cp.eu/fluxes/4/det...

🐟 La #anguila europea está al borde del colapso

👉 Urge actuar para protegerla:
→ Perseguir el tráfico ilegal
→ Incluir todas las especies en #CITES
→ Moratoria a su pesca
→ Eliminar obstáculos y restaurar la conectividad fluvial

💧 Cada río libre cuenta

[1/2] 📢 GLAMOS @scnat.ch press release out today: Swiss glaciers lost another 3% of their volume in 2025, the 4th-largest decline ever measured. In just 10 years, they’ve lost a quarter of their ice mass. Over 1k small glaciers have already vanished.

🔗 to press release: scnat.ch/en/uuid/i/9d...

45 ships of the Global Sumud Flotilla are approaching Gaza ... "We need your eyes & your pressure on international institutions to keep everyone safe and to help us achieve our goal of breaking the siege and opening a humanitarian corridor." globalsumudflotilla.org @freedomflotilla.bsky.social

Impresionante! Estos datos están accesibles para investigación?

Gracias por tus repartos, muy utiles! Que aplicación usas para consultar los datos de observaciones?

La asociación @sciencequeers.bsky.social busca ponentes su evento #OrgullEnCiències, que se celebrará en noviembre en Mataró y en Barcelona. Aceptan propuestas hasta el 10 de octubre.

Long‐Term Cambial Phenology Reveals Diverging Growth Responses of Two Tree Species in a Mixed Forest Under Climate Change We studied how climate change affects tree growth by monitoring wood formation in Scots pine (Pinus sylvestris) and Pyrenean oak (Quercus pyrenaica) over 11 years. We found that warmer winters lead t...

Climate change is reshaping forest growth 🌳🌡️💧
Water and temperature control growth timing.
Warmer winters make some species start growing earlier.
Hot, dry summers may shorten growing seasons.

New paper out @globalchangebio.bsky.social led by a former PhD student @csic.es shorturl.at/5Gn8a

The weak land carbon sink hypothesis Satellite-derived time series of vegetation carbon do not support a strong Northern Hemisphere net land carbon sink.

Maybe the land carbon sink is weaker than we thought. Big implications: "A lower-than-expected land carbon sink would also imply that the land biosphere may be closer to transitioning from a net carbon sink to a net source than current models predict" Randerson et al. www.science.org/doi/10.1126/...

Fig. 3 Resource (here C and water) uptake, transport, and consumption shape resource distribution along the leaf-to-root axis, influencing C partitioning and plant functional traits under changing environmental conditions.

✨ Paper spotlight ✨

(🧵 1/5) Distal to proximal: a continuum of drivers shaping tree growth and carbon partitioning
doi.org/10.1111/nph....

Distal to proximal: a continuum of drivers shaping tree growth and carbon partitioning The relationship between tree carbon (C) assimilation and growth is central to understanding tree functioning and forecasting forest C sequestration, yet remains unresolved. The long-standing debate ...

🌳 New Tansley Insight!
What really limits tree growth—carbon source or sink? 🤔
I argue it’s not either/or but a distal → proximal continuum: from photosynthesis to transport and cell division, drivers act together to shape C allocation & growth 🌱🌍
🔗 nph.onlinelibrary.wiley.com/doi/10.1111/nph.70516

@newphyt.bsky.social

Distal to proximal: a continuum of drivers shaping tree growth and carbon partitioning The relationship between tree carbon (C) assimilation and growth is central to understanding tree functioning and forecasting forest C sequestration, yet remains unresolved. The long-standing debate ...

🌳 New Tansley Insight!
What really limits tree growth—carbon source or sink? 🤔
I argue it’s not either/or but a distal → proximal continuum: from photosynthesis to transport and cell division, drivers act together to shape C allocation & growth 🌱🌍
🔗 nph.onlinelibrary.wiley.com/doi/10.1111/nph.70516

Our new article is out in @geoderma.bsky.social! Drylands, which cover 40% of Earth’s land, store ~30% of global soil organic carbon. But how do different carbon fractions support ecosystem services under rising aridity? 🏜️
📖 doi.org/10.1016/j.ge...

Almond orchard with Sierra Nevada in the background

Ready for a fresh start at @csic.es, in beautiful Granada, to study the impact of climate change on tree growth and the carbon cycle. Keep posted for PhD and postdoc position announcements!

🌳Plants adjust #hydraulics under #drought, but not enough.

📰New paper out in @natecoevo.nature.com led by @ramirezval.bsky.social

"Limited plastic responses in safety traits support greater hydraulic risk under drier conditions"
🔗👉http://t.ly/K-vdy

@irnase.bsky.social

Trees use exogenous sugars for growth, but excess triggers negative feedback reducing photosynthetic carbon gain Abstract. Plants’ non-structural carbohydrates (NSCs) serve as their capital for growth, reproduction, defense, and survival. To increase the NSC availabil

Excited to share our latest publication: Trees use exogenous sugars for growth, but excess triggers negative feedback reducing photosynthetic carbon gain. Many thanks to my supervisors Mai-He Li and @arthurobuntspecht.bsky.social and many collaborators
doi.org/10.1093/tree...

Come work with us! We are looking to fill a PhD (mountain forest management) and PostDoc position (forest adaptive capacity):
PhD: www.lss.ls.tum.de/fileadmin/w0...
Postdoc:
www.lss.ls.tum.de/fileadmin/w0...
Please feel free to share this opportunity with anyone who might be interested!

🧵Junio de 2025 ha pulverizado récords.

→ Temperatura media de 23.6 °C. Supera por 0.8 °C al anterior junio más cálido: el de 2017.

→ Su carácter ha sido extremadamente cálido. Supera en nada menos que 3.5 °C el promedio del período 1991-2020.

MANIFIESTO URGENTE POR GAZA Este manifiesto no es una súplica. Es un grito. Es un puño sobre la mesa de la indiferencia. Es un llamamiento urgente a la conciencia del mundo.

Este manifiesto no es una súplica.

Es un grito.

Es un puño sobre la mesa de la indiferencia.

Es un llamamiento urgente a la conciencia del mundo.

¿Qué futuro estamos construyendo, si ante un genocidio televisado, todavía no hemos hecho todo lo posible para conseguir paralizarlo?

$500 million is… less than 1.25% of the NIH’s 2024 budget.

When I say there is no capacity to absorb the shock, I mean it.

Solar farms can host up to three times as many birds as crop fields, study shows "We have a golden opportunity for finding multiple functions for land: generating clean energy while restoring biodiversity."

Solar farms can host up to three times as many birds as crop fields, study shows

theprogressplaybook.com/2025/03/22/s...

Welcome to the Bluesky account for Stand Up for Science 2025!

Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide!

#scienceforall #sciencenotsilence

This is a cartogram map of the United States depicting land use by different categories. The map distorts state shapes to represent proportional land usage. Key land use types include cow pasture/range (covering much of the central U.S.), private and federal timberland in the Pacific Northwest, corporate timberland in the Southeast, and urban housing/commercial areas in the Northeast. Other categories include agriculture (livestock feed, wheat exports, ethanol/biodiesel, cotton), protected lands (national parks, federal wilderness, state parks), and infrastructure (railroads, airports, highways). Additional specialized land uses include wildfires, golf courses, Christmas tree farms, and maple syrup production.

I think about this map a lot.

www.bloomberg.com/graphics/201...

Generalized Stomatal Optimization of Evolutionary Fitness Proxies for Predicting Plant Gas Exchange Under Drought, Heatwaves, and Elevated CO2

📄 https://buff.ly/3CAFh27
#photosynthesis

Successful sampling trip at @barbeau-fr-fon.bsky.social with colleagues from ESE lab as a part of a @snsf-ch.bsky.social project. Incredibly grateful to the tree climbers who took samples up to 20 m high! This will help understand how and why tree growth varies along the trees' vertical axis.

A graph of atmospheric carbon dioxide concentrations at the Mauna Loa observatory, Hawaii, from 1958 to 4th February 2025. It shows carbon dioxide levels rising at an accelerating rate over the decades. This is known to be due to emissions of carbon dioxide from human activity, mainly fossil fuel burning but also deforestation. The first CO2 concentration value in March 1958 was 315 parts per million (ppm). The latest daily value is 426 ppm. The graph also shows a seasonal cycle of a few ppm within each year, which is known to be linked to the growing season in the northern hemisphere causing a temporary uptake of carbon in spring and summer and release in autumn. The graph is produced routinely by the Scripps Institution of Oceanography, UC San Diego.

Although NOAA's page on atmospheric CO2 levels has vanished, you can still get this vital information from Ralph Keeling's team at the Scripps Institution of Oceanography, UC San Diego keelingcurve.ucsd.edu

Please follow bsky.app/profile/keel... for updates and share

Don't let science be hidden

Generalized Stomatal Optimization of Evolutionary Fitness Proxies for Predicting Plant Gas Exchange Under Drought, Heatwaves, and Elevated CO2 We develop a new generalized optimality theory of stomatal conductance that optimizes any non-foliar fitness proxy that requires water and carbon reserves, like growth, survival, and reproduction. We...

We develop a new, generalized optimality theory of stomatal conductance by incorporating the non-steady-state physics of water, carbon, and heat within a plant into an effectively instantaneous solution.

Congrats Aaron Potkay!!

doi.org/10.1111/gcb....

BREAKING NEWS: CDC orders mass retraction and revision of submitted research across all science and medicine journals. Banned terms must be scrubbed. Any unpublished manuscript mentioning certain topics, including gender and "LGBT," must be pulled or revised.

BREAKING NEWS: CDC orders mass retraction and revision of submitted research across all science and medicine journals. Banned terms must be scrubbed.

Goes beyond MMWR +other CDC pubs. Applies to research already submitted to top medical journals.

Take a look.
open.substack.com/pub/insideme...