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arthurobuntspecht.bsky.social
Arthur Gessler
@arthurobuntspecht.bsky.social
4.1K followers 6.9K following 350 posts

#Ecosystem Science and Impacts of #Climate Change; #Forest #Ecology; #Biodiversity.
| Ecosystem Ecology group at @wslresearch.bsky.social |
| Professor at @usyseth.bsky.social |
| Head of the @SwissForestLab.bsky.social | .. more

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arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 10
Scaling laboratory results with machine learning is no silver bullet to strengthen global (micro)plastic mitigation policy | PNAS
Scaling laboratory results with machine learning is no silver bullet to strengthen global (micro)plastic mitigation policy | PNAS
Scaling laboratory results with machine learning is no silver bullet to strengthen global (micro)plastic mitigation policy
www.pnas.org

Reposted by Joe R. Feagin, Arthur Geßler, Euan G. Ritchie , and 8 more

markhamillofficial.bsky.social
Mark Hamill @markhamillofficial.bsky.social · 9d
What he said: 💯 🎯

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · 10d
Das Baumsterben geht weiter – trotz besseren Erkenntnissen
Das Baumsterben geht weiter – trotz besseren Erkenntnissen
Das grossflächige Sterben von Bäumen ist und bleibt ein Problem. Was hat sich seit den Debatten der 1980er-Jahren getan?
www.srf.ch

Reposted by Sonia I. Seneviratne, Arthur Geßler

usyseth.bsky.social
Departement Umweltsystemwissenschaften (D-USYS), ETH Zürich @usyseth.bsky.social · 13d
Die @ethz.ch -Professorin @soniaseneviratne.bsky.social
hat als erste Schweizerin den renommierten Deutschen #Umweltpreis der Deutschen Bundesstiftung Umwelt (DBU) erhalten.

Ein Porträt von SRF nano (ab ca. Minute 16.40): www.srf.ch/play/tv/nano...
Schweizer Klimaforscherin erhält Deutschen Umweltpreis - nano - Play SRF
Die ETH-Forscherin Sonia Seneviratne wird für ihre bahnbrechende Forschung zur Bodenfeuchte und deren Einfluss auf Klimaextreme ausgezeichnet. EU-Klimaziele 2040 Der Konflikt zwischen Industrie und Kl...
www.srf.ch

Reposted by Arthur Geßler

wslresearch.bsky.social
WSL Umweltforschung @wslresearch.bsky.social · 20d
🍃🌳🍂 #PhDAlert! MSc in #ForestEcology, #PlantPhysiology or #EnvironmentalSciences? Eager to apply a wide range of approaches, from #ecophysiology and experimental fieldwork to #RemoteSensing and modelling🛰️? We offer a #PhD position in Tree #Phenology: apply.refline.ch/273855/1788/... #ScienceJobs
Job offer: The Swiss Federal Institute for Forest, Snow and Landscape Research WSL is part of the ETH Domain. Approximately 600 people work on the sustainable use and protection of the environment and on the handling of natural hazards. The Research Unit Forest and Soil Ecology, which investigates how changing environmental conditions affect forest ecosystem functioning, is seeking a candidate to join the Ecosystem Ecology group starting on 1 January 2026 (or upon appointment) as a PhD candidate in Tree Phenology and Ecophysiology You will be working within the SNF funded project “From leaf-out to senescence: integrating daylight and temperature dynamics into phenological process-based models to enhance autumn phenology modelling”. Unlike leaf-out timing, leaf senescence is particularly challenging to predict, partly because many internal factors are involved and remain poorly understood. You will investigate how changing environmental conditions — including variations in temperature, daylight, and water availability — affect leaf senescence, with the goal of improving phenological models. To achieve this, you will combine manipulative experiments, long-term phenological observations, and large-scale remote sensing data. You will also apply both statistical and mechanistic modelling approaches and contribute to publishing results in international scientific journals. You hold a Master’s degree in in forest ecology, ecology, plant physiology, environmental science, or a related field. You are eager to apply a wide range of approaches, from ecophysiology and experimental fieldwork to remote sensing and modelling. You have a good command of English, work in a structured and independent manner, enjoy collaborating within a team and are comfortable using statistical software, preferably R. The workplace will be at WSL in Birmensdorf (approximately 20 minutes outside of Zurich), and the PhD enrolment will be at the University of Bern.

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · 21d
Age‐Dependent Variations in Xylem Hydraulic Efficiency and Safety of Abies fabri
Age‐Dependent Variations in Xylem Hydraulic Efficiency and Safety of Abies fabri
The impact of aging on the hydraulic functions of entire trees is crucial for accurately forecasting the productivity and expansion of mature forests. Nevertheless, it is not well understood whether ...
onlinelibrary.wiley.com

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · 21d
We found that variations in hydraulic traits of A. fabri as they age serves an adaptive purpose: they enable trees to achieve greater heights and enhance their hydraulic threshold.

Reposted by Arthur Geßler

pplplantarum.bsky.social
Physiologia Plantarum @pplplantarum.bsky.social · 21d
🌲How do hydraulic properties of subalpine conifers evolve as they age? The impact of aging on the hydraulic functions of entire trees is crucial for accurately forecasting the productivity and expansion of mature forests.
@arthurobuntspecht.bsky.social

Read more https://bit.ly/3KVteAc

Reposted by Arthur Geßler, Ben Bond‐Lamberty

vargaslab.bsky.social
Rodrigo Vargas @vargaslab.bsky.social · 26d
🌎 Support for Long-Term Ecological Studies Matters Now More Than Ever

I am excited to share our new paper: “Long-term ecological studies must continue: insights from a dryland transition zone” co-authored with Huong LE, Ph.D. and Scott Collins.

link.springer.com/article/10.1...

1/5

Reposted by Michael E. Mann, Arthur Geßler, Ben Bond‐Lamberty , and 2 more

rahmstorf.bsky.social
Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 29d
High resolution images from satellite and from eddy-resolving ocean circulation models point to an ongoing decline of the Atlantic overturning circulation, a key ocean current for our climate. Read more about it in my new blog article. 🌊
www.realclimate.org/index.php/ar...
RealClimate: High-resolution ‘fingerprint’ images reveal a weakening Atlantic Ocean circulation (AMOC)
The #AMOC is the reason for Europe’s mild climate. Evidence that it is slowing has been piling up over the years – it now is likely at its weakest in at least a millennium, and it may even be approach...
www.realclimate.org

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 10
This makes science not really credible. I see nevertheless that approaches such as the ones of Zhu et al are important - as micro- and nanoplastics are likely a global threat. But we - the scientists- need to put our results into a realistic context - this is our core responsibility.

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 10
This paper is a perfect example how trying to get newspapers-citable into the focus of a paper invalidates the really important findings (microplastics can reduce photosynthesis but we do not know how this might scale to our ecosystems - just because we have no data at all.

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 10
Just imagine you go with machine learning from scarce lab data with almost no information on plastic pollution under real world conditions to crop and fishery yield losses as a result of that given pollution. I acknowledge that this is a first step - but you need to name the shortcomings.

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 10
They (1) extrapolate plastic impact measurements on photosynthesis under controlled and highly artificial conditions to the real world (2) without valid data on global plastic pollution and (3) without any baseline for their model.

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 10
We still feel that this later statement in their response letter is not congruent with the alarming statements in the original text: „These findings underscore the urgency of integrating plastic mitigation into global hunger and sustainability initiatives“ which seem to be targeted to press coverage

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 10
In their response (www.pnas.org/doi/10.1073/...) some authors of the original paper state that „[they] believe it is scientifically sound and responsible to use currently available—albeit limited evidence—for preliminary assessments and to stimulate broader scientific and policy dialog“
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 10
This is our critical assessment of www.pnas.org/doi/10.1073/... These authors claimed that they can calculate quite exact MP-induced real world global photosynthesis losses translating in a reduction of 22.15 to 115.73 MT·y−1 in main crop production and 0.32 to 7.39 MT·y−1 in seafood production.
A global estimate of multiecosystem photosynthesis losses under microplastic pollution | PNAS
Understanding how ecosystems respond to ubiquitous microplastic (MP) pollution is crucial for ensuring global food security. Here, we conduct a mul...
www.pnas.org

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 6
Nighttime Warming Enhances Tree Growth in Temperate Tree Species
Nighttime Warming Enhances Tree Growth in Temperate Tree Species
Moderate night warming (+2°C) enhances radial growth via faster cell expansion, but daytime(night +4°C) warming weakens benefits. Ring-porous, arbuscular mycorrhizal and isohydric species show heig...
onlinelibrary.wiley.com

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 5
Rooting for function: community‐level fine‐root traits relate to many ecosystem functions
Rooting for function: community‐level fine‐root traits relate to many ecosystem functions
Humans are driving biodiversity change, which also alters community functional traits. However, how changes in the functional traits of the community alter ecosystem functions—especially belowground...
nph.onlinelibrary.wiley.com

Reposted by Arthur Geßler

aliraza6.bsky.social
Ali Raza @aliraza6.bsky.social · Oct 3
Excited to share our review is on the Cover of @cp-trendsplantsci.bsky.social (Vol 30, Issue 10)🤩🎉😍

👉 #Panomics to manage combined #abiotic stresses in plants

🔗 www.cell.com/trends/plant...

Congratulations to all authors @agbioworld.bsky.social👏

@plantteaching.bsky.social @cellpress.bsky.social
In this work, together with my wonderful co-authors (Yiran Li, Channapatna Prakash, and Zhangli Hu), we discuss how climate change-driven combined abiotic stresses threaten global crop productivity, and how panomics, AI-driven breeding, single-cell omics, and advanced phenotyping can guide the way for stress-smart crops of the future🌱 🔑 𝙆𝙚𝙮 𝙞𝙣𝙨𝙞𝙜𝙝𝙩𝙨: Panomics + AI = unlocking novel molecular targets & pathways Field-level validation + spatial/single-cell omics for real-world solutions Synthetic biology and epigenome editing as next-gen breeding strategies Crop wild relatives as hidden reservoirs of resilience Designing "genetic circuits" and "full-gene packages" for enhanced tolerance Ultimately, we propose panomics as a “social insurance” for crops, equipping them to withstand real-world stress combinations and secure sustainable agriculture in a changing climate 🌍✨

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 1
Effects of Soil and Atmospheric Drought on Intra-Annual δ13C Patterns in Tree Rings https://dx.doi.org/10.1093/treephys/tpaf120

Reposted by Francis Martin, Dirk Nikolaus Karger

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Oct 1
New research reveals how to better monitor tree #drought #stress! We combined remote sensing data (greenness & photoprotection indicators) with leaf water potential measurements to track drought impacts across different tree species.
www.sciencedirect.com/science/arti...
Deciphering tree drought responses across species: linking leaf water potentials with remote sensing greenness and photoprotection dynamics
Monitoring forest drought stress requires indicators that capture tree water relations across species and scales. Remote sensing enables large-scale a…
www.sciencedirect.com

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Sep 29
Want to do disruptive science? Include more rookie researchers
Want to do disruptive science? Include more rookie researchers
www.nature.com

Reposted by Valerie M. Delmotte, Arthur Geßler, Wolfgang Crämer , and 5 more

zacklabe.com
Zack Labe @zacklabe.com · Sep 28
"After nearly 40 years, the Arctic Research Consortium of the United States, or ARCUS, will close September 30."

"The Arctic Research Consortium of the United States funded programs that aided Indigenous communities and tracked melting sea ice, among dozens of initiatives."
After Trump cut the National Science Foundation by 56 percent, a venerable Arctic research center closes its doors
The Arctic Research Consortium of the United States funded programs that aided Indigenous communities and tracked melting sea ice, among dozens of initiatives.
grist.org

Reposted by Arthur Geßler

wslresearch.bsky.social
WSL Umweltforschung @wslresearch.bsky.social · Sep 24
Die Unwetter 2024 forderten in der Schweiz 13 Todesopfer, 3 Vermisste und verursachten Schäden von 905 Mio. CHF. Es handelt sich um die fünfthöchste Jahresschadenssumme seit Beginn der Erhebungen 1972. www.wsl.ch/de/news/unwe... @bafu.admin.ch #Schweiz #WSL #Naturgefahren #Forschung
Unwetter 2024: viele Todesopfer und hohe Kosten
Dreizehn Todesfälle und 905 Mio. Franken Schäden: Das ist die Bilanz der Unwetter 2024, wie die jährliche Auswertung durch die WSL ergab.
www.wsl.ch

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Sep 23
Absorptive fine #roots drive substantial #forest #soil carbon accumulation over the long term: Substantial forest soil carbon accrual from absorptive fine roots over decadal timescales - Nature Geoscience
Substantial forest soil carbon accrual from absorptive fine roots over decadal timescales - Nature Geoscience
The accrual of soil carbon from absorptive fine roots exceeds that of leaf litter in forests despite lower productivity, according to an analysis of field observations from Northern Hemisphere forest sites.
www.nature.com

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Sep 17
Tree ring 14C and 13C content reveal reliance on fast cycling carbon for pine growth in semiarid montane forests
Tree ring 14C and 13C content reveal reliance on fast cycling carbon for pine growth in semiarid montane forests
Trees harbor large stores of nonstructural carbohydrates, some of which are quite old (> 10 yr), yet we know little of how these older stores may be used for woody growth. Crucially, the use of old ...
nph.onlinelibrary.wiley.com

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Sep 17
Air pollutants, biodiversity loss, and climate stress - the pressures on forests have changed. Long-term measurements are crucial for identifying impacts at an early stage. They are a basis for forest management and environmental policy. @waldwissen.bsky.social: www.waldwissen.net/en/technique...
Forest ecosystems in transition: the findings of 40 years of research
Air pollutants, biodiversity loss, climate stress - the pressures on forests have changed. Long-term measurements are essential to identify the effects at an early stage. The resulting data forms a ba...
www.waldwissen.net

arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · Sep 11
Our new paper reveals that tropical rainforests adapt to P limitation through microbially mediated strategies: www.sciencedirect.com/science/arti...
Decadal nutrient addition reveals phosphorus limitation and its adaptive mechanisms in tropical rainforests
Tropical rainforests on low-phosphorus soils are highly biodiverse and productive, playing a crucial role in climate change mitigation. However, the d…
www.sciencedirect.com

Reposted by Sonia I. Seneviratne, Arthur Geßler

usyseth.bsky.social
Departement Umweltsystemwissenschaften (D-USYS), ETH Zürich @usyseth.bsky.social · Sep 11
🔥🌍 New research led by Prof. @soniaseneviratne.bsky.social at @ethz.ch, with lead author @yannquilcaille.bsky.social, shows how greenhouse gas emissions from major fossil fuel and cement producers have significantly intensified global heat waves.

👉 Full article: go.ethz.ch/2u
Rising heat waves tied to fossil fuel and cement production
According to ETH Zurich climate researchers, greenhouse gas emissions from major fossil fuel and cement producers are significant contributors to the occurrence and intensity of heat waves. These find...
go.ethz.ch