Guillaume Fried

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.

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...

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...

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!

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.

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.

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...

🌿 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....

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

Recrutement - Fondation pour la recherche sur la biodiversité Créée en 2008, la FRB recherche régulièrement de nouveaux collaborateurs. Elle constitue un point de convergence entre la science et la société, autour des défis que doit aujourd’hui relever la recher...

[📢 #Recrutement] La FRB recrute :

◉ Un ou une post doctorant(e) qui animera le groupe de travail FRB-Cesab Fellow
◉ Un ou une manager opérationnel qui supervisera la gestion globale de @biodiversaplus.bsky.social

📝 rejoignez-nous : www.fondationbiodiversite.fr/la-fondation...

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

#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

Plant Species Better Adapted to Climate Change Need Agricultural Extensification to Persist Functional changes in plant communities over time are mostly driven by climate change. Trait covariations suggest that climate change and agricultural intensification act as opposing selective forces...

1/ Another great agroecology paper on the relationship between climate, agriculture, and biodiversity by @i-poinas.bsky.social, part of her PhD @cbgpmontpellier.bsky.social from a while ago with @g-fried.bsky.social and me, now published in Ecology Letters: 🧪🌐
onlinelibrary.wiley.com/doi/full/10....

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

📝 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.

💡 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.

• 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.

• 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

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

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.

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...