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Helena Vallicrosa

@vallicrosah.bsky.social
763 followers 749 following 22 posts

Did you say plant nutrients? Count me in! 🌳 Plant ecologist at EPFL and WSL, 🇨🇭 ECS | 🏳️‍🌈 | Catalan helenavallicrosa.github.io

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Helena Vallicrosa @vallicrosah.bsky.social · 01/10/2026
Excellent PhD position in our lab in Ecophysiology and Remote Sensing! Great lab, an even better team of supervisors 😉. We are looking forward your applications!
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Charlotte Grossiord @charlottegrossiord.bsky.social · 18/08/2026
📢 We’re hiring a Postdoctoral Researcher in Plant Ecophysiology at EPFL/WSL in Lausanne! 🌿 Study physiological mechanisms of leaf browning under heat & drought stress 🔬 Experimental plant ecophysiology 🎓 Mentoring/teaching opportunities Please share! Apply here: apply.refline.ch/273855/1893/...
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Dr. Jonathan Foley @globalecoguy.bsky.social · 28/06/2026
What *actually* works — right here, right now — to address climate change? Here you go. This is the result of thousands of hours of painstaking research and analysis from the Project Drawdown team.
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Guille Peguero @guillepeguero.bsky.social · 05/05/2026
It’getting hot in here! In full swag @vallicrosah.bsky.social takes the floor at #EGU26 and shows which are the main drivers of T50 values at a global scale. Great talk and outstanding paper incoming!
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Dr. Dominic Royé @drxeo.eu · 04/05/2026
On my way to #EGU26, perfect time to drop a new post! 🗺️ Something I've been wanting to write about: Mercator projections still showing up in high-profile journals. So here it is: projections you should stop using (for most things) 👇 #gis #rstats #dataviz dominicroye.github.io/blog/map-pro...
dominicroye.github.io
Map projections: a practical guide to common mistakes and how to fix them
Researcher in climate science at MBG-CSIC
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ReCLEAN @reclean.bsky.social · 13/04/2026
🌱 New ReCLEAN publication 🙌 @wslresearch.bsky.social and EPFL colleagues show how drought and warming threaten nitrogen stability in grasslands, especially under intensive management. Thanks to @vallicrosah.bsky.social and @charlottegrossiord.bsky.social ! 🔬💡 ▶️ Publication here: lnkd.in/dByaM6nx
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Helena Vallicrosa @vallicrosah.bsky.social · 20/03/2026
It turns out that drought and warming enhance the risk of nitrogen losses in intensively managed grasslands. Extensively managed ones, on the other hand, stay strong and stable! 😮‍💨Check our new publication rdcu.be/e88Cm @charlottegrossiord.bsky.social @pierremariotte.bsky.social
rdcu.be
Drought and warming enhance the risk of nitrogen losses in intensively managed grasslands
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Helena Vallicrosa @vallicrosah.bsky.social · 23/02/2026
How far-reaching is the human impact on the chemistry of all the Earth's compartments? That's what we explored in this Synthesis Action led by @burriach.bsky.social and Estela Romero at @creaf.cat. Products coming soon! 😄
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Michał Filipiak @michalfilipiak.bsky.social · 09/12/2025
🧵1/5 🌍🔬 Our new paper is out! We identify the global mechanisms shaping the elemental composition of organisms — and the results overturn long-standing assumptions in ecology. 👇 Thread ↓ doi.org/10.1038/s414...
doi.org
Nitrogen deposition reveals global patterns in plant and animal stoichiometry - Nature Communications
Organisms vary in their nitrogen and phosphorus content, shaping ecological and evolutionary processes. This study shows that nitrogen deposition is a consistent global factor associated with plant an...
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Charlotte Grossiord @charlottegrossiord.bsky.social · 27/10/2025
🌿 Join us at #EGU26 for session BG3.37 – Impacts of climatic extremes on plants & ecosystems! 🔥 We welcome studies on heat, drought & variability from leaf to landscape 🌍 Submit your abstract 👉 meetingorganizer.copernicus.org/EGU26/sessio... @kateplantphys.bsky.social @alyssakullberg.bsky.social
meetingorganizer.copernicus.org
Session BG3.37
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ReCLEAN @reclean.bsky.social · 23/10/2025
Dr. Helena Vallicrosa (WSL and EPFL) gave a seminar entitled 'The role of plant–soil–microbe interactions on nitrogen cycling under drought and warming in grasslands' at the New Phytologist Symposium. Learn more about this seminar: reclean.epfl.ch/grassland-ni... @vallicrosah.bsky.social
reclean.epfl.ch
Grassland nitrogen cycling under climate stress: Insights from ReCLEAN member Helena Vallicrosa
Helena Vallicrosa presented new experimental findings on how climate extremes shape nitrogen cycling in grasslands during her seminar “The role of plant–soil–microbe interactions on nitrogen cycling u...
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Helena Vallicrosa @vallicrosah.bsky.social · 05/09/2025
Sampling success at the @arnoldarboretum.bsky.social with @alyssakullberg.bsky.social and Thibaut. What an amazing place to work! If you have temperature thresholds data and want to join forces, let us know! You'll make us and @charlottegrossiord.bsky.social happy.
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Charlotte Grossiord @charlottegrossiord.bsky.social · 20/08/2025
New PhD position in Plant Ecophysiology🌳 Study how atmospheric & soil drought shape tree carbon & water relations at the VPDrought experiment in Switzerland. Start Jan 2026. Apply here: m.refline.ch/273855/1759/... @wslresearch.bsky.social
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Luca Santini @lsantinieco.bsky.social · 14/08/2025
Important paper! nsojournals.onlinelibrary.wiley.com/doi/full/10....
nsojournals.onlinelibrary.wiley.com
Correcting environmental sampling bias improves transferability of species distribution models
Sampling bias is an inherent problem in widely available biodiversity data, undermining the robustness of correlative species distribution models (SDMs). To some extent, subsampling occurrence data c...
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Charlotte Grossiord @charlottegrossiord.bsky.social · 14/08/2025
🌳🔥Out now: Our review on compound droughts and forest responses - from leaf to ecosystem. Featuring a stunning 20-yr map of canopy temperatures variation across European forests. @chriswernerlab.bsky.social @simonhaber.bsky.social @vallicrosah.bsky.social onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Impact of emerging compound droughts on forests: A water supply and demand perspective
This review examines the physiological and ecological responses of trees to emerging compound droughts from a water demand and supply perspective, as well as the role of acclimation and consequences ...
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Helena Vallicrosa @vallicrosah.bsky.social · 28/07/2025
How much nitrogen are plants taking up from the soil? How efficient are they at building biomass with it? Are models doing a good job assessing it? Find your answers in our last publication (open access!): esd.copernicus.org/articles/16/...
esd.copernicus.org
Nitrogen deposition and climate drive plant nitrogen uptake while soil factors drive nitrogen use efficiency in terrestrial ecosystems
Abstract. The role of plants in sequestering carbon is a critical component in mitigating climate change. A key aspect of this role involves plant nitrogen (N) uptake (Nup) and N use efficiency (NUE),...
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Global Change Biology @globalchangebio.bsky.social · 15/07/2025
A Global Meta‐Analysis of Passive Experimental Warming Effects on Plant Traits and Community Properties 🔗 buff.ly/Xsgk5EI
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ESA Journals @esajournals.bsky.social · 07/07/2025
Seeking Data Editors! Are you an ecologist or environmental scientist with a keen interest in open research? We're looking for Data Editors to work with our journals & implement our Open Research Policy. Honorarium provided! 🚨Applications due 7/18🚨 Learn more: shorturl.at/3qzIu
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Helena Vallicrosa @vallicrosah.bsky.social · 30/06/2025
Plants are not only cute and fascinating, they are also crucial to cool down our cities and adapting them to climate change!
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Uriel Menalled @urielmenalled.bsky.social · 23/06/2025
Shout out to the #rstats {performance} package. Its check_model() function is super helpful for model evaluation. #statistics #STEM
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Helena Vallicrosa @vallicrosah.bsky.social · 24/06/2025
Interesting summary to reflect on “what’s the point” of science, and how the publication system will interfere on the science we need.
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Fernando T. Maestre @ftmaestre.bsky.social · 12/06/2025
What if plant N & P cycles aren’t as linked as we thought?🤔Our new @journalofecology.bsky.social paper shows that global change decouples them, challenging existing asumptions & showing the need 2 incoporate this decoupling into models to predict global change responses doi.org/10.1111/1365...
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Helena Vallicrosa @vallicrosah.bsky.social · 12/06/2025
Excellent approach using the elementome. Very recomended read!
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Kate Johnson @kateplantphys.bsky.social · 06/06/2025
Showing off our figure of global conifer leaf-widths & leaf silhouettes highlighting that conifers can be broad-leaved & angiosperms can be narrow/ needle-leaved! 🍃 Our paper: tinyurl.com/mss2me7v @newphyt.bsky.social @vallicrosah.bsky.social @botanykat.bsky.social & Matilda Brown
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Kate Johnson @kateplantphys.bsky.social · 06/06/2025
Do you define trees as either needle- or broad-leaved? Are you doing this correctly? Read our OA paper: Cones & Consequences @newphyt.bsky.social tinyurl.com/mss2me7v @vallicrosah.bsky.social @botanykat.bsky.social @creaf.cat @wslresearch.bsky.social @rbgkew.bsky.social @coeplantsuccess.bsky.social
tinyurl.com
Cones and consequences: the false dichotomy of conifers vs broad‐leaves has critical implications for research and modelling
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Helena Vallicrosa @vallicrosah.bsky.social · 05/06/2025
Some time ago, @polete97.bsky.social and I started this very cool project mixing elemental composition, genome size and species distribution. We gathered Anna on the way and yesterday it finally saw the light in front of the the @sibecol-aeet-25.bsky.social audience. What an excelent welcoming!
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Borja Jiménez-Alfaro @borjajimalf.bsky.social · 03/06/2025
We offer a postdoc position for developing global analyses on seed germination data using SEEDARC. See the job alert on our website and contact us! www.jimenezalfaro.net
jimenezalfaro.net
VEGETATION & BIODIVERSITY LAB
Vegetation & Biodiversity Lab
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Brian J. Enquist @bjenquist.bsky.social · 02/06/2025
Amazon rainforest adjusts to long-term experimental drought ..."After elevated tree mortality during the first 15 years, ecosystem-level structural changes resulted in the remaining trees no longer experiencing drought stress." 🧪🌐🌾 www.nature.com/articles/s41...
nature.com
Amazon rainforest adjusts to long-term experimental drought - Nature Ecology & Evolution
Drought is a growing issue in tropical rainforests. Here, the authors revisit a long-term rainfall manipulation experiment in the Amazon to show that tree mortality was followed by community-level adj...
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Ido Rog @idorog.bsky.social · 22/05/2025
New paper! The Increased Environmental Niche of Dual‐Mycorrhizal Woody Species. Ecology Letters: onlinelibrary.wiley.com/doi/10.1111/... Dual-host woody species occupy a broader geographical range and environmental niche space compared to those associating exclusively with either AM or EM.
onlinelibrary.wiley.com
The Increased Environmental Niche of Dual‐Mycorrhizal Woody Species
Abiotic factors influence the global distribution of mycorrhizal host plants (ectomycorrhizal fungi and arbuscular mycorrhizal fungi), raising the possibility that dual associations with both mycorrh...
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Tropical Root Trait (TropiRoot) @tropiroot.bsky.social · 19/05/2025
🎉 Our collaborative TropiRoot data paper “TropiRoot 1.0: Database of tropical root characteristics across environments” is out in Ecology! Explore 8,000+ standardized tropical root trait records from 104 studies across 25 countries. Data are freely available ! 🌿 doi.org/10.1002/ecy.... #tropiroots
doi.org
TropiRoot 1.0: Database of tropical root characteristics across environments
Tropical ecosystems contain the world's largest biodiversity of vascular plants. Yet, our understanding of tropical functional diversity and its contribution to global diversity patterns is constrain...
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Helena Vallicrosa @vallicrosah.bsky.social · 29/04/2025
We have 3 players in a grassland: plants, microbes and soils. Who is winning on the fight for N under drought and warming conditions? Should we adapt our management strategies? Come to my #EGU25 talk on Wed to find out! BG3.5 @reclean.bsky.social meetingorganizer.copernicus.org/EGU25/EGU25-...
meetingorganizer.copernicus.org
Abstract EGU25-2870
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WSL Umweltforschung @wslresearch.bsky.social · 25/04/2025
#PostDoc Alert! #PhD in #forest- or #environmental #sciences, good publication record & interest in #ecological development of forests? 🌳🌲 Excellent knowledge in #statistics and statistical #modelling? 🖥️ We are looking for a 2-year PostDoc in forest modelling! apply.refline.ch/273855/1730/...
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 group Resource Analysis of the research unit Forest Resources and Management analyses the state and development of forests. Therefore, we develop the empirical forest development model MASSIMO, which is based on data of the Swiss National Forest Inventory (NFI). In this new project, we will extend and/or adapt the functionality of MASSIMO to improve the simulation of forest development in accordance with relevant IPCC climate scenarios. We are therefore looking for two years (with the option of extension) for a
PostDoc in forest modelling 80 – 100% (f/m/d)

You develop a climate module that reflects the current knowledge about the climate responses of tree species groups under a wide range of site conditions in Switzerland. Climate change will be accounted for by expected changes in site conditions and phenology. To model demographic processes outside the current empirical range of climatic conditions, you link empirical functions of the demographic processes with process-oriented modelling approaches. Together with the MASSIMO-team you implement the new module in MASSIMO and apply the model under different forest management and climate scenarios. You publish your results in international scientific journals.

 

You hold a PhD in forest- or environmental sciences with a corresponding publication record and are interested in the ecological development of forests. Excellent knowledge in statistics (preferably in R) and experience in statistical modelling is mandatory. You like to work in a team. You exhibit very good command of the English language; good knowledge of the German language is advantageous.
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Helena Vallicrosa @vallicrosah.bsky.social · 23/04/2025
Did you ever wonder when to use "conifer", "gymnosperm", "needleleaf", "angiosperms" and "broadleaves"? Us too so we transformed the discussion into this viewpoint. I hope you enjoy the reading as much as we enjoyed the writing! @kateplantphys.bsky.social nph.onlinelibrary.wiley.com/doi/full/10....
nph.onlinelibrary.wiley.com
Cones and consequences: the false dichotomy of conifers vs broad‐leaves has critical implications for research and modelling
In plant science research and modelling, particularly from the northern hemisphere, the terms ‘needle-leaved’ and ‘conifer’ along with ‘broad-leaved’ and ‘angiosperm’ are often used synonymously, cre...
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Arthur Gessler @arthurobuntspecht.bsky.social · 21/04/2025
Forest productivity response to elevated CO2 in free‐air CO2 enrichment experiments: the 23 percent solution, revisited
nph.onlinelibrary.wiley.com
Forest productivity response to elevated CO2 in free‐air CO2 enrichment experiments: the 23 percent solution, revisited
A synthesis of free-air CO2 enrichment (FACE) experiments describing the response of forest net primary productivity (NPP) to elevated atmospheric CO2 published in 2005 has provided a valuable benchm...
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Helena Vallicrosa @vallicrosah.bsky.social · 16/04/2025
Our manuscript esajournals.onlinelibrary.wiley.com/doi/full/10.... got awarded #TopViewedArticle! Have you had the chance to learn about nutrients in tropical forests yet? Here we found evidence of some interesting nitrogen-phosphorus links!
esajournals.onlinelibrary.wiley.com
Phosphorus scarcity contributes to nitrogen limitation in lowland tropical rainforests
There is increasing evidence to suggest that soil nutrient availability can limit the carbon sink capacity of forests, a particularly relevant issue considering today's changing climate. This questio...
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Helena Vallicrosa @vallicrosah.bsky.social · 08/04/2025
We are polishing the last details before the publication of our Viewpoint at @newphyt.bsky.social . This is the first time in my career I am encouraged to provide an abstract written in another language other than English. How difficult but how refreshing at the same time! Very nice initiative!
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Angélica L. González @ecolgonzalez.bsky.social · 03/04/2025
I’m thrilled to finally share our new dataset paper-years in the making! This has been an incredible rewarding project, and it was a true pleasure to work with such an amazing team of researchers. Huge thanks to supported by @idiv for the support www.nature.com/articles/s41...
nature.com
StoichLife: A Global Dataset of Plant and Animal Elemental Content - Scientific Data
Scientific Data - StoichLife: A Global Dataset of Plant and Animal Elemental Content
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Helena Vallicrosa @vallicrosah.bsky.social · 03/04/2025
It turns out that plant acclimation is not gonna save us. Oh well. Big kudos for my friend's first paper!
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Charlotte Grossiord @charlottegrossiord.bsky.social · 08/01/2025
Interested in plants under climate extremes? 🍃🌡️💧❄️ Submit an abstract to our session at EGU in Vienna, 27th April- 2nd May 2025! meetingorganizer.copernicus.org/EGU25/sessio... Abstracts due Jan 15th @kateplantphys.bsky.social
meetingorganizer.copernicus.org
Browse by session
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Arthur Gessler @arthurobuntspecht.bsky.social · 22/12/2024
Researchers spend approximately 45% of their time on administrative activities related to #grants rather than actual #research. The current #competition in research #funding has significant drawbacks; evidence-based improvements of the funding system are required: www.pnas.org/doi/10.1073/...
pnas.org
The costs of competition in distributing scarce research funds | PNAS
Research funding systems fundamentally influence how science operates. This paper aims to analyze the allocation of competitive research funding fr...
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Marcos Fernández-Martínez @burriach.bsky.social · 16/12/2024
The Flow of Elements and the Functioning of the Biosphere Come and join our thematic session at SIBECOL 2025 (Pontevedra, Spain)! sibecol-aeet-meeting2025.org/Index/11/Cal... Deadline for submissions: 20 December!
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Emily Solly @plantsoilemily.bsky.social · 10/12/2024
Are you interested in soils, microbes and biogeochemistry? Join us at #EGU25 for session SSS4.5 ‚Soil microbial responses to climate change‘. With @loutsi.bsky.social @albertocanarini.bsky.social and Albert Brangarí we are thrilled to have @ashish-malik.bsky.social as solicited keynote speaker!
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Charlotte Grossiord @charlottegrossiord.bsky.social · 08/12/2024
🎄✨Wrapping up the year with laughter, good food and great company! Our Christmas party was the perfect way to celebrate our journey together ❄️🎉
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Helena Vallicrosa @vallicrosah.bsky.social · 04/12/2024
Yesterday I gave a talk at @wslbiodiversity.bsky.social and I was tipped with an excellent box of Swiss chocolate. Let’s tip our speakers with goodies a bit more often because it feels (and tastes) incredible!
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Helena Vallicrosa @vallicrosah.bsky.social · 03/12/2024
Interested in biogeochemistry and ecological stoichiometry? Submit your abstract to my colleagues session at the next SIBECOL Meeting! “The Flow of Elements and the Functioning of the Biosphere” Great discussions and better seafood! www.sibecol-aeet-meeting2025.org/Index/11/Cal...
sibecol-aeet-meeting2025.org
Call for Abstracts - III SIBECOL & XVII AEET meeting
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Helena Vallicrosa @vallicrosah.bsky.social · 21/11/2024
Happily migrated from that “olla de grills”. Nice to see that almost all of us is here! I expect to share and read scientific content (specially plant terrestrial ecology) and learn about what is going on in the scientific comunity. Stay connected!
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