Helena Vallicrosa
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vallicrosah.bsky.social
Helena Vallicrosa
@vallicrosah.bsky.social
560 followers 730 following 18 posts
Did you say plant nutrients? Count me in! 🌳
Plant ecologist at EPFL and WSL, 🇨🇭
ECS | 🏳️‍🌈 | Catalan
https://helenavallicrosa.github.io/
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vallicrosah.bsky.social
Helena Vallicrosa @vallicrosah.bsky.social · Apr 23
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....
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...
nph.onlinelibrary.wiley.com
Reposted by Helena Vallicrosa
michalfilipiak.bsky.social
🧵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...
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...
doi.org
December 9, 2025 at 2:32 PM
Reposted by Helena Vallicrosa
charlottegrossiord.bsky.social
🌿 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
Session BG3.37
meetingorganizer.copernicus.org
October 27, 2025 at 2:07 PM
Reposted by Helena Vallicrosa
reclean.bsky.social
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
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...
reclean.epfl.ch
October 23, 2025 at 6:25 AM
vallicrosah.bsky.social
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.
September 5, 2025 at 1:27 PM
Reposted by Helena Vallicrosa
charlottegrossiord.bsky.social
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
August 20, 2025 at 12:38 PM
Reposted by Helena Vallicrosa
lsantinieco.bsky.social
Important paper!
nsojournals.onlinelibrary.wiley.com/doi/full/10....
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...
nsojournals.onlinelibrary.wiley.com
August 14, 2025 at 5:04 PM
Reposted by Helena Vallicrosa
charlottegrossiord.bsky.social
🌳🔥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/...
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 ...
onlinelibrary.wiley.com
August 14, 2025 at 4:24 AM
vallicrosah.bsky.social
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/...
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),...
esd.copernicus.org
July 28, 2025 at 11:45 AM
Reposted by Helena Vallicrosa
globalchangebio.bsky.social
A Global Meta‐Analysis of Passive Experimental Warming Effects on Plant Traits and Community Properties

🔗 buff.ly/Xsgk5EI
July 15, 2025 at 4:59 PM
Reposted by Helena Vallicrosa
esajournals.bsky.social
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
July 7, 2025 at 4:02 PM
vallicrosah.bsky.social
Plants are not only cute and fascinating, they are also crucial to cool down our cities and adapting them to climate change!
June 30, 2025 at 12:04 PM
Reposted by Helena Vallicrosa
urielmenalled.bsky.social
Shout out to the #rstats {performance} package. Its check_model() function is super helpful for model evaluation.

#statistics #STEM
June 23, 2025 at 2:52 PM
vallicrosah.bsky.social
Interesting summary to reflect on “what’s the point” of science, and how the publication system will interfere on the science we need.
selfdz.bsky.social Selene FeRNAndez @selfdz.bsky.social · Jun 23
I enjoyed Carl Bergstrom's @carlbergstrom.com talk today @unswbabs.bsky.social on the current 'Peer review meltdown' phenomenon. Misery loves company, so I was glad to find out I'm not the only editor struggling to find reviewers. Carl et al. have narrow it down to a few factors including ->
June 24, 2025 at 2:08 AM
Reposted by Helena Vallicrosa
ftmaestre.bsky.social
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...
June 12, 2025 at 9:32 AM
vallicrosah.bsky.social
Excellent approach using the elementome. Very recomended read!
globalecounit.bsky.social globalecounit.bsky.social @globalecounit.bsky.social · Jun 12
🧪🌋 New study tracks 2,000 years of ecosystem change in Azores lakes using elementome trajectories — revealing climate & human impacts over time.
J de la Casa @sandranogue.bsky.social ‪@spr-bcn.bsky.social
@jpreixach.bsky.social @csic.es @creaf.cat @iec.cat
www.sciencedirect.com/science/arti...
June 12, 2025 at 3:54 PM
Reposted by Helena Vallicrosa
kateplantphys.bsky.social
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
June 6, 2025 at 10:27 AM
Reposted by Helena Vallicrosa
kateplantphys.bsky.social
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
Cones and consequences: the false dichotomy of conifers vs broad‐leaves has critical implications for research and modelling
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tinyurl.com
June 6, 2025 at 9:26 AM
vallicrosah.bsky.social
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!
June 5, 2025 at 7:55 AM
Reposted by Helena Vallicrosa
borjajimalf.bsky.social
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
VEGETATION & BIODIVERSITY LAB
Vegetation & Biodiversity Lab
www.jimenezalfaro.net
June 3, 2025 at 9:39 AM
Reposted by Helena Vallicrosa
bjenquist.bsky.social
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...
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...
www.nature.com
June 2, 2025 at 9:48 AM
Reposted by Helena Vallicrosa
idorog.bsky.social
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.
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...
onlinelibrary.wiley.com
May 22, 2025 at 4:39 PM
Reposted by Helena Vallicrosa
laylugli.bsky.social
Please delight yourselves in the magic of belowground research! wur.yuja.com/V/Video?v=89... Amazing video produced by the team of @moniqueweemstra.bsky.social from Wageningen University
Riddles in the Dark
In the dense and biodiverse San Emilio ForestGEO plot of Costa Rica, every tree tells a story. Not just above ground, but deep below the surface. Discover how different trees adapt to their environmen...
wur.yuja.com
May 20, 2025 at 11:59 AM
Reposted by Helena Vallicrosa
tropiroot.bsky.social
🎉 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
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...
doi.org
May 19, 2025 at 1:39 PM
vallicrosah.bsky.social
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-...
Abstract EGU25-2870
meetingorganizer.copernicus.org
April 29, 2025 at 8:14 AM
Reposted by Helena Vallicrosa
wslresearch.bsky.social
#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.
April 25, 2025 at 9:34 AM