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Guillaume Fried @g-fried.bsky.social · 05/08/2026

Many thanks to all co-authors, and to FRB, CESAB and ITTECOP for making this collaborative research possible.

Guillaume Fried @g-fried.bsky.social · 05/08/2026

Beyond these results, this study highlights the power of macroecological synthesis: combining heterogeneous datasets across countries allows us to move beyond local particularities and reveal robust European-scale patterns that would remain hidden in isolated studies.

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Guillaume Fried @g-fried.bsky.social · 05/08/2026

Trait-based analyses revealed contrasting strategies: invasive species were generally taller and associated with nutrient-rich environments, whereas threatened species were often smaller and sensitive to eutrophication.

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Guillaume Fried @g-fried.bsky.social · 05/08/2026

• Roadsides supported similar species richness but lower functional diversity, dominated by generalist species. • Field margins hosted fewer invasive species and provided refuge for several threatened arable plants.

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Guillaume Fried @g-fried.bsky.social · 05/08/2026

• About 25% of species were shared among the three habitats, while each habitat also hosted a distinct species pool. • Riparian corridors emerged as hotspots of taxonomic and functional diversity, but also as major hotspots for invasive species.

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Guillaume Fried @g-fried.bsky.social · 05/08/2026

Through extensive harmonisation, we built a unique database to analyse the taxonomic and functional diversity of three major linear habitats across temperate Europe.

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Guillaume Fried @g-fried.bsky.social · 05/08/2026

These datasets were not originally designed for comparison: they differed in sampling objectives, protocols, taxonomic references and abundance measurements.

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Guillaume Fried @g-fried.bsky.social · 05/08/2026

To address these questions at the European scale, we faced a major challenge: integrating vegetation surveys independently collected in France, Catalonia (Spain) and the United Kingdom.

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Guillaume Fried @g-fried.bsky.social · 05/08/2026

but do they support similar communities? Which habitats contribute most to the conservation of threatened species — and which ones facilitate the spread of invasive plants?

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Guillaume Fried @g-fried.bsky.social · 05/08/2026

Riparian corridors, roadsides and field margins are among the most widespread linear habitats in agricultural landscapes. They act as important refuges for plant biodiversity...

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Guillaume Fried @g-fried.bsky.social · 05/08/2026

🌿 New publication in Diversity and Distributions! onlinelibrary.wiley.com/doi/10.1111/... I am delighted to see this new outcome from the BRIDGE project, which I had the pleasure to co-lead with Eric Tabacchi (CNRS, CRBE) between 2021 and 2024 at the CESAB in Montpellier.

onlinelibrary.wiley.com

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Guillaume Fried @g-fried.bsky.social · 22/03/2026

🚨 New paper out! “Weeds in a changing climate” is the result of a great collaboration between Montpellier and Wageningen, bringing together weed ecologists, functional ecologists, agronomists, and soil ecologists to explore the role of weeds in cropping systems under climate change.

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Reposted by Guillaume Fried

Christine N Meynard @cnmeynard.bsky.social · 16/03/2026

Reçu aujourd'hui, tous frais sortis de l'imprimante ! 😁 @cbgpmontpellier.bsky.social @g-fried.bsky.social @gkergoat.bsky.social

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Reposted by Guillaume Fried

Christine N Meynard @cnmeynard.bsky.social · 07/01/2026

And because one good news comes with another, this other excellent paper, also led by another great ♀️postdoc @cbgpmontpellier.bsky.social with @g-fried.bsky.social was also published today 🧪🌐on agricultural intensification & ecosystem services by 🌿 esajournals.onlinelibrary.wiley.com/doi/10.1002/...

esajournals.onlinelibrary.wiley.com

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Reposted by Guillaume Fried

Christine N Meynard @cnmeynard.bsky.social · 07/01/2026

This paper is far overdue, so I am very happy to finally see it published! We show that herbicides have noticeable impacts on plant communities in agroecological landscapes at the national level. Must read! @cbgpmontpellier.bsky.social 🧪🌐 kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...

kwnsfk27.r.eu-west-1.awstrack.me

ScienceDirect.com | Science, health and medical journals, full text articles and books.

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Guillaume Fried @g-fried.bsky.social · 17/10/2025

Which regions have the highest levels of invasion of plants in aquatic habitats? Which aquatic invasive plants are most widely distributed? Does the vulnerability of aquatic habitats to invasions differ in temperate vs. tropical regions? Find the answers in this new global synthesis just published.

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Guillaume Fried @g-fried.bsky.social · 08/10/2025

Very happy and proud to be part of this great collaborative work led by Alessandra Kortz et al., providing a global overview of naturalised and invasive plants in aquatic habitats! A global synthesis of naturalised and invasive plants in aquatic habitats neobiota.pensoft.net/articles.php...

neobiota.pensoft.net

A global synthesis of naturalised and invasive plants in aquatic habitats

Global databases have contributed to our understanding of alien, naturalised and invasive plant species distributions. Still, the role of species invasions in habitats, specifically in aquatic habitat...

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Guillaume Fried @g-fried.bsky.social · 30/07/2025

Thanks to the enthusiasm and expertise of invited contributors, we managed to keep a steady pace—nearly one monograph per year. The tenth is scheduled for 2026 and will focus on Humulus scandens. If you have ideas or would like to contribute to the series, feel free to reach out!

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Guillaume Fried @g-fried.bsky.social · 30/07/2025

These detailed evaluations deserved a second life in academic format, accessible to a wider audience. In the end, over half of the monographs (on Carpobrotus, Arundo donax, Asclepias syriaca, Rhododendron ponticum, Cortaderia selloana) came from other contexts.

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Guillaume Fried @g-fried.bsky.social · 30/07/2025

Nine years ago, as associate editor at Botany Letters, I launched this series. The initial idea was to give broader scientific visibility to risk assessments conducted by EPPO, many of which led to species being listed under EU Regulation No. 1143/2014.

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Guillaume Fried @g-fried.bsky.social · 30/07/2025

🌿 Just published: the ninth volume in our monograph series on invasive plants in Europe, this time focusing on Ageratina adenophora. Monographs on invasive plants in Europe: Ageratina adenophora (Spreng.) R.M. King www.tandfonline.com/doi/full/10....

tandfonline.com

Monographs on invasive plants in Europe: Ageratina adenophora (Spreng.) R.M. King & H. Rob

Ageratina adenophora (Spreng.) R.M. King & H. Rob. (Crofton weed) is a triploid, apomictic perennial herb or sub-shrub native to Mexico that is highly invasive in many parts of the world. This spec...

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Guillaume Fried @g-fried.bsky.social · 15/03/2025

A 2-year post-doc position to work on the Fellow project, about the response of arable plant communities to gradients in agricultural practices, and their role on agroecosystem functioning (particularly the link with pollinators and beneficial insects) 🌸🐝 Position based at Cesab, Montpellier

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Reposted by Guillaume Fried

INRAE_France @inrae-france.bsky.social · 06/03/2025

#RP_INRAE Étude avec @anses-fr.bsky.social de 500 parcelles agricoles françaises sur 10 ans : ↗️ de la température moyenne de 1,2 °C ↘️ de l’humidité des sols de 14% 🌱 Les bordures de champs incluent plus d’espèces végétales tolérantes à la chaleur et l’aridité ➡️ url.inrae.fr/3F5oDsh

Impact du changement climatique sur la végétation des bordures de champs. Photo d'un bord de champ enherbé.

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Guillaume Fried @g-fried.bsky.social · 09/12/2024

Let’s rethink weed management to design sustainable systems that benefit both plants and microbes! #Agroecology #Sustainability #SoilHealth #NitrogenCycle #Vineyards

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Guillaume Fried @g-fried.bsky.social · 09/12/2024

📝 Takeaway for farmers & researchers: Weed management strategies have cascading effects—from root traits to soil microbes—that shape agroecosystem sustainability. We demonstrate the need to measure the root traits of weeds to unravel how weed communities influence soil processes.

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Guillaume Fried @g-fried.bsky.social · 09/12/2024

💡 Why it matters: Our findings underline the need to limit herbicide use and embrace diverse management practices like mowing, which foster sustainable N cycling and healthy soil functions.

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Guillaume Fried @g-fried.bsky.social · 09/12/2024

• Mowed weed communities are a win-win: they support interrow plant diversity, act as organic amendments with high N content, and improve soil N retention.

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Guillaume Fried @g-fried.bsky.social · 09/12/2024

• While herbicides are associated with higher weed specific root length and increasing short-term N availability, they may contribute to higher N losses and lower efficiency in the long run due to their influence on weed root strategies

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Guillaume Fried @g-fried.bsky.social · 09/12/2024

Key Insights: • Mowing promotes biodiversity, boosts soil microbial biomass (+58% respiration compared to herbicides), and enhances weeds with a conservative strategy and high associations with AMF, which are more likely to mitigate N losses, especially in low-fertilised systems such as vineyards

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Guillaume Fried @g-fried.bsky.social · 09/12/2024

Our study explores how weed management practices (chemical weeding, tillage, mowing) shape the interactions between weed communities and soil microbes—key players in the nitrogen cycle.

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Guillaume Fried @g-fried.bsky.social · 09/12/2024

For my first post here, I'm excited to share our latest publication with Marie-Charlotte Bopp et al.: "Weed management modifies functional properties of both weeds and microbial nitrogen-cycling communities in Mediterranean vineyards." 🍇 🔗 doi.org/10.1111/1365...

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