Rosalie Bruel

Average temperature per compartment and how 2022 temperature compared. We see that 2022 (colored lines) was systematically warmer. The 4 indicators used in the study are labeled.

We found anomalies in all three compartments but mountain lakes in particular amplify the heat wave signal from the atmosphere.
In 2022, the atmospheric temperature (average July-August temperature) at the sites we studied was +1.62 degC warmer than our reference period. Lakes were 4.1 degC warmer 🥵

Climate change is not only threatening the future of Winter Olympics in the Alps.

We studied thermal response of mountain compartments (rockwalls, soils and lakes) to summer heat waves, focusing on 2015 and 2022, two years with record heat and early snow melt-out date.

Different temperature responses of mountain rockwalls, soils, and lakes to summer heat waves - Regional Environmental Change Mountain ecosystems are highly sensitive to climate variations. At fine spatial scales, high-elevation microclimates play a critical role in shaping biodiversity, hydrological processes, and ecosystem...

🌡️⛰️ New publication! Temperature responses of mountain rockwalls, soils, and lakes to summer heat waves
Data from different observatories were compiled to analyze how mountain compartments responded to two recent heatwaves. Read the full study in Open Access: link.springer.com/article/10.1...

📰 Check out our recent paper, led by Najwa Sharaf!

We computed mixing regimes for 170 lakes and reservoirs in France over 60 years, and investigated whether any shift occurred in the dominant mixing regimes 🔄.

Wave-buoy about to be deployed in > 2 m Hs. Small boat visible. Anchors.

Screenshot from Ohoi / Barentswatch showing the measured wave-height.

New wave-buoys deployed with the help of the coast-guard in Fedjeosen (outside Bergen)! Rougher conditions than expected, but all safely deployed. Data is open, and can be seen in real-time on BarentsWatch (www.barentswatch.no/ohoi/point/4...)! #waves 🌊 @met.no | github.com/gauteh/sfy #opensource

Great that @rosaliebruel.bsky.social is visiting me this week and we are working on #ZooSize together to finalize the dataset thanks to the IMAN mobility grants from @urjc.bsky.social @biodiversosurjc.bsky.social @iicg-urjc.bsky.social

URJC department, Mostoles Campus

Statue of King Juan Carlos I

Meeting rooms with two computers and a whiteboard in the back.

Working this week on the #ZooSize project at the @urjc.bsky.social with @zzeynepersoy.bsky.social.

We are getting close to the final dataset structure: 6 tables that will allow users to cross informations on lake’s characteristics, water quality, zooplankton size and biomass for 400+ lakes.

One of the best scenery I experienced 😊!

Stand d’accueil des journées portes ouvertes, devant l’un des bâtiments de l’UMR Carrtel

Atelier chimie, et présentation d’échantillons pris à 20 profondeurs le long de la colonne d’eau du Leman, pour doser l’oxygène.

Stand Pôle ECLA / OFB - à la découverte des Ecosystèmes aquatiques

Maquette d’un dispositif du Réseau National de suivi de la Temperature des plans d’eau, stand Pôle ECLA / OFB

Journées Portes ouvertes pour la fête de la science 2025 d’ @umrcarrtel.bsky.social

💧🐟🔬🧑‍🔬

A scientific data visualization showing two sets of graphs tracking global trends from 1970 to 2020: Section A: "Examples of Indicators of Indirect Drivers" displays six graphs: GDP (showing exponential growth) Trade (merchandise exports increasing) Population (steady growth) Urbanization (gradual increase) Environmental regulations (sharp increase) Renewable energy (recent rapid growth) Section B: "Examples of Indicators of Nexus Elements" shows six graphs: Index of ecosystem conditions (declining trend) Freshwater availability (decreasing) Food supply (increasing) Index of species survival (declining) Life expectancy (improving) Climate-related disasters (increasing) Each graph shows data lines for different income levels: low income, lower middle income, upper middle income, high income, and world average. The trends generally show environmental decline alongside economic and social development. All graphs use consistent color coding and clear labeling.

What are the indicators of the nexus elements according to the new @ipbes.net #Nexus Report?🤔

Check this graphic to find out!

And if you haven't yet, access the Summary for Policymakers already available in English. Other UN languages coming soon ⤵️
www.ipbes.net/nexus/...

We identified 6 narratives that vary in how French & Dutch 🐄 farmers conceptualise #biodiversity, perceive and value interactions between farming & biodiversity, & define problems & solutions in relation to biodiversity

Paper is led by V. Oostvogels 👉 doi.org/10.1002/pan3...

#dairy #NFF #pluralism

August 27 is the World Lake Day. Lakes have critical importance, delivering a wide range of ecosystem services - at least 58 of the 90 ecosystem services defined by the Common International Classification of Ecosystem Services (CICES, v5.1) are applicable to lakes #CARRTEL #INRAE #USMB

Human and climate impacts on the alpine Critical Zone over the past 10,000 y | PNAS Agropastoral activities have impacted the habitable part of our planet—the “Critical Zone”—for thousands of years, triggering a major increase in s...

Our last publication in PNAS :
Agropastoral activity responsable for soil erosion and degradation in the Alps for the past 3800 years.

We reconstruct 10 000 y of soil evolution using sediment from Lake le Bourget àd the Lithium isotopes signature.

@edytem.bsky.social

www.pnas.org/doi/10.1073/...

Unprecedented continental drying, shrinking freshwater availability, and increasing land contributions to sea level rise Drying continents, extreme drought, and groundwater depletion are shrinking water availability and increasing sea level rise.

After a long absence from Twitter, I'm now on Bluesky. Looking forward to sharing thoughts, research, and rants about the lack of attention paid to water. Let's kick this off with a new paper alert. Please share widely. Title says it all. Please help me grow followers www.science.org/doi/10.1126/...

The DAFNEE database of academia-friendly journals is now using OpenAlex instead of PubMed to find your papers for the author index.
That's great especially for #archaeology since most are not indexed in PubMed.
Go see the second tab on dafnee.isem-evolution.fr !
@nicolasgaltier.bsky.social 🏺🧪

Daphnia lumholtzi is a water flea with a small circular body and long thin spines coming out of its head and the tail end of its carapace

some water fleas have a little spike on their head or carapace to make it difficult/painful for predators to eat them. currently crying over Daphnia lumholtzi which dials this up to 11. killing you and stabbing you and killing you and death and kill

📣Post-doc opportunity in thermal ecology & species interactions with Arnaud Sentis at INRAE Aix-en-Provence, France.
🌡️Explore how antagonistic interactions shape thermal tolerance in freshwater organisms.
📆 Start: Nov. 2025 | Duration: 2 years
📩 Sept. 8, 2025
Info 👉 www.inrae.fr/en/news/erc-...
🌐🧪🌍

Balcony over Lake Geneva, with some natural shade from trees.

View of Lake Geneva on a sunny day.

Sunny day on Lake Geneva

Five years ago today, most historical UK monthly rainfall observations were not available to scientists.

But the 66,000 pieces of paper containing the data had been scanned.

With covid lockdown approaching we saw an opportunity to transcribe the data.

#RainfallRescue began... 🧵

See here a report in @theguardian.com about our study in Nature, led by @francoiskeck.bsky.social @eawag.bsky.social & #UZH on "The global human impact on biodiversity": www.nature.com/articles/s41...

Suivi de la variabilité de la température dans cette étang de la Dombes, dont le niveau fluctue du quitte au double dans l’année.
📊 ces données seront traitées dans le cadre d’un stage ce printemps.

Rappel pour les parisiens : si vous voulez plus de verdure à la place de places de parking, c'est aujourd'hui qu'on vote. Tous les détails sur www.paris.fr/pages/nouvel...

How do audiences follow news on climate change?

This is the question at the heart of a report by @waqasejaz.bsky.social @mitalilive.bsky.social @richardfletcher.bsky.social based on survey data from 🇧🇷 🇫🇷 🇩🇪 🇮🇳 🇯🇵 🇵🇰 🇬🇧 🇺🇸

Read here: buff.ly/4jwvTNG
7 findings in thread

Bonsoir,

Le 3ème Plan national d'adaptation au changement climatique (PNACC3) vient d'être publié, après plusieurs années de concertations et consultations :

www.ecologie.gouv.fr/actualites/g...

Voici l'avis du @hc-climat.bsky.social qui s'est auto-saisi :

1/...

Picture showing the back of the banner we used in 2025: it’s the banner from 2017 we reused ♻️

Front of the 2025 banner “Stand up for science”: letters were taped onto the 2017 banner.

In fact, the 2017 banner proved itself to be a very useful support once again…

♻️ Reduce, Reuse, Rally against Science deniers ♻️

2017 - 2025
We stand in solidarity with scientists and citizens around the world whose ability to engage in or benefit from Science is under threat.
#StandUpForScience

📍Thonon, France

#StandUpForScience @standupforscience.bsky.social
@standupforscifr.bsky.social
📍Thonon-les-bains

Défendre la science avec mes formidables collègues français. Merci USMB-INRAE-CARRTEL pour votre hospitalité et votre soutien! @inrae-france.bsky.social @rosaliebruel.bsky.social @herverogissart.bsky.social @jean-guillard.bsky.social @cyanophage.bsky.social @allanraffard.bsky.social

Learning from a large-scale calibration effort of multiple lake temperature models Abstract. Process-based lake temperature models, formulated on hydrodynamic principles, are commonly used to simulate water temperature, enabling one to test different scenarios and draw conclusions a...

Your model is your hypothesis. So, why not use multiple of them? Championed by Feldbauer & Mesman, in our fresh-off-the-press paper we highlight the performance of temperature models across the globe, and discuss the path forward to get better projections!

hess.copernicus.org/articles/29/...

Merci aux organisateurs pour la démarche !

Vu le temps imparti, suggérez vous de rejoindre les rassemblements dans les plus grandes villes ou d’en créer malgré tout dans des petites villes ? Il n’y a pas d’université ici, et pas sûre qu’un vendredi on croise beaucoup de personnes…
Merci !