Alexis Roy

Landsat‐based remote sensing of surface water dynamics in southern African wetlands in drylands from 1986 to 2022 Wetlands in drylands represent distinct ecosystems characterized by unique assemblages of fauna and flora that coexist in a fluctuating hydrological regime. These habitats provide essential resources...

🎉 First PhD paper out!

Using 37 years of Landsat data, we tracked monthly water presence in savanna "wetlands in drylands" (Hwange NP, Zimbabwe).

Key result? A 2-month lag between rainfall and wetland filling, and a simple method (no ML!) to assess ecological drought and wetland resilience.

I've been working on Zimbabwean wetlands for the past three years, and despite the significant challenges Zimbabwe faces, I'm still really pleased to see Victoria Falls at the forefront of international biodiversity diplomacy!
Zimbabwe is a gem, home of one of the most welcoming people in the world.

The more I read about political ecology, the more it helps my research on wetlands.
The opposition between social sciences and natural sciences is outdated. We need both to handle what's coming!

Bravo à toutes les deux!!

As an ecology scientist, I'm constantly wondering how to be useful and efficient with the short time we have. I'm convinced that it is not a lack of understanding that block pro climate and biodiversity policies. But the implications of that statement are somehow even scarier.

We live in the dumbest timeline indeed.
Musk's gremlins just using CTRL+F to cancel research is both horrifying and completely hilarious

Quitter twitter était une nécessité éthique autant que politique.
Rester, au delà de légitimer, c'était surtout fournir des bouc émissaires au projet des fascistes à travers le monde. Rappelons nous que nous sommes leur ennemi commun, parce que nous représentons tout ce qu'ils abhorrent.

Fully agree. It also applies to using an internship to fill a recruitment shortage. Interns are here to learn and should not be expected to meet any objectives.
Managing an intern relies on trust, commitment to transmission, and regular time dedication.

Merci Nathan Abou de poser les questions qui fâchent sans concessions.

C'était très très bien

Le captage de carbone, ça ne marche vraiment pas bien pour l'instant.
Un (très) long et (très) fourni article de Tim Baxter un exemple de CCS en Australie

Systematic assessment of the achieved emission reductions of carbon crediting projects - Nature Communications Carbon markets are key in climate strategies, but only 16% of carbon credits represent real emission reductions, based on a study of 2,346 projects. Reforms are needed to improve the effectiveness of ...

Encore une étude qui montre que compensation carbone et projets de crédit carbone sont des arnaques.
Ces mécanisme permettent de donner "bonne conscience » aux acteurs qui se dédouanent de leur responsabilité dans l’artificialisation.
A quand des engagements honnêtes?
www.nature.com/articles/s41...

I am, to be honest, quite surprised by these results, as I thought it would be less significant!
I'd be interested to read such a study on biodiversity researchers.

Intéressant, en particulier dans un contexte de precarisarisation de la recherche.
Twitter facilitait la mise en relation des chercheur•euses, en poste comme en contrat court, voir bluesky reprendre le créneau est franchement rassurant.

Et beh pas fâché d'être venu ici! Ça parle climat, biodiversité, politique sans se faire alpaguer par les climatosceptiques, les rassuristes et les intolérant•es de tous bords.
Camarades, collègues scientifiques, merci de m'avoir convaincu!

Good to see you here Valérie