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Helena Vallicrosa

@vallicrosah.bsky.social

470 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/

helenavallicrosa.github.io

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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

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Helena Vallicrosa @vallicrosah.bsky.social · Sep 5

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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Reposted by Helena Vallicrosa

Charlotte Grossiord @charlottegrossiord.bsky.social · Aug 20

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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Reposted by Helena Vallicrosa

Luca Santini @lsantinieco.bsky.social · Aug 14

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

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Reposted by Helena Vallicrosa

Charlotte Grossiord @charlottegrossiord.bsky.social · Aug 14

🌳🔥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

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Helena Vallicrosa @vallicrosah.bsky.social · Jul 28

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

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Reposted by Helena Vallicrosa

Global Change Biology @globalchangebio.bsky.social · Jul 15

A Global Meta‐Analysis of Passive Experimental Warming Effects on Plant Traits and Community Properties

🔗 buff.ly/Xsgk5EI

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Reposted by Helena Vallicrosa

ESA Journals @esajournals.bsky.social · Jul 7

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 · Jun 30

Plants are not only cute and fascinating, they are also crucial to cool down our cities and adapting them to climate change!

WSL Biodiversity Center @wslbiodiversity.bsky.social · Jun 30

☀️🌳🌇 Even in extreme heat above 39 °C, plane trees keep cooling our streets by evaporating water!
Link to the paper: doi.org/10.1016/j.uf...
www.wsl.ch/en/news/city...

City trees provide cooling even in extreme heat

Urban trees transpire much more than expected at temperatures above 39°C. This questions previous assumptions about heat regulation.

www.wsl.ch

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Reposted by Helena Vallicrosa

Uriel Menalled @urielmenalled.bsky.social · Jun 23

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 · Jun 24

Interesting summary to reflect on “what’s the point” of science, and how the publication system will interfere on the science we need.

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 ->

Reposted by Helena Vallicrosa

Fernando T. Maestre @ftmaestre.bsky.social · Jun 12

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 · Jun 12

Excellent approach using the elementome. Very recomended read!

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...

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Reposted by Helena Vallicrosa

Kate Johnson @kateplantphys.bsky.social · Jun 6

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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Reposted by Helena Vallicrosa

Kate Johnson @kateplantphys.bsky.social · Jun 6

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

You have to enable JavaScript in your browser's settings in order to use the eReader.

tinyurl.com

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Helena Vallicrosa @vallicrosah.bsky.social · Jun 5

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!

Reposted by Helena Vallicrosa

Borja Jiménez-Alfaro @borjajimalf.bsky.social · Jun 3

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

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Reposted by Helena Vallicrosa

Brian J. Enquist @bjenquist.bsky.social · Jun 2

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

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Reposted by Helena Vallicrosa

Ido Rog @idorog.bsky.social · May 22

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

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Reposted by Helena Vallicrosa

Laynara F. Lugli @laylugli.bsky.social · May 20

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

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Reposted by Helena Vallicrosa

Tropical Root Trait (TropiRoot) @tropiroot.bsky.social · May 19

🎉 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

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Helena Vallicrosa @vallicrosah.bsky.social · Apr 29

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

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Helena Vallicrosa @vallicrosah.bsky.social · Apr 28

Thanks a lot. Please do!

Helena Vallicrosa @vallicrosah.bsky.social · Apr 28

Thank you, Tom! We are interested in your feedback and happy to discuss!

Reposted by Helena Vallicrosa

WSL Umweltforschung @wslresearch.bsky.social · Apr 25

#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 · Apr 23

@newphyt.bsky.social @wslresearch.bsky.social