Alexis Roy
@powked.bsky.social
PhD. candidate, working on wetland evolution under climate change.
I like comic books, photography and terrible puns. When I am not doing scientific ecology, I read about political ecology.
I like comic books, photography and terrible puns. When I am not doing scientific ecology, I read about political ecology.
🎉 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.
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.
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...
esajournals.onlinelibrary.wiley.com
July 14, 2025 at 7:25 AM
🎉 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.
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.
Zimbabwe is a gem, home of one of the most welcoming people in the world.
From 23-31 July 2025, 172 governments will gather in Victoria Falls, Zimbabwe for the #WetlandsCOP15, a landmark conference to drive international action for wetland conservation.
🌍 The future of wetlands is the future of our planet!
🌍 The future of wetlands is the future of our planet!
April 3, 2025 at 6:43 AM
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.
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!
The opposition between social sciences and natural sciences is outdated. We need both to handle what's coming!
April 2, 2025 at 6:20 AM
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!
The opposition between social sciences and natural sciences is outdated. We need both to handle what's coming!
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.
March 30, 2025 at 8:45 PM
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
Musk's gremlins just using CTRL+F to cancel research is both horrifying and completely hilarious
We got a message from the university to remove any use of the "DEI", "diversity", "equity", or "inclusion" from all public-facing documents. They said that even "biodiversity" is being flagged by the federal government. We live in the dumbest timeline.
February 11, 2025 at 1:45 PM
We live in the dumbest timeline indeed.
Musk's gremlins just using CTRL+F to cancel research is both horrifying and completely hilarious
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.
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.
January 20, 2025 at 4:48 PM
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.
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.
Managing an intern relies on trust, commitment to transmission, and regular time dedication.
Still a hill I will die on: unpaid internships are classist, and whilst you might *think* you are "helping students gain experience" all you are doing is widening the gap between those that can afford to and those that cannot.
December 16, 2024 at 7:23 AM
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.
Managing an intern relies on trust, commitment to transmission, and regular time dedication.
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
Un (très) long et (très) fourni article de Tim Baxter un exemple de CCS en Australie
Gorgon CCS is the world's largest pure carbon capture and storage operation. Since 2019, it has been weakly sputtering away out on Barrow Island at Australia's highest emitting industrial facility.
You may have heard it's a failure. Do you know why it's a failure?
A long article and accompanying 🧵
You may have heard it's a failure. Do you know why it's a failure?
A long article and accompanying 🧵
Gorgon carbon capture and storage project: The failure of the world’s largest CCS facility
After decades of abject failure, these days even the most enthusiastic proponent of carbon capture and storage can at best mount a muted…
medium.com
December 1, 2024 at 7:47 AM
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
Un (très) long et (très) fourni article de Tim Baxter un exemple de CCS en Australie
Reposted by Alexis Roy
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...
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...
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 ...
www.nature.com
November 15, 2024 at 9:53 PM
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...
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.
I'd be interested to read such a study on biodiversity researchers.
"we found that climate researchers reported engaging in considerably more advocacy and activism on climate change and, to a lesser extent, high-impact lifestyle changes than non-climate researchers"
www.nature.com/articles/s44...
www.nature.com/articles/s44...
November 21, 2024 at 2:46 PM
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.
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.
Twitter facilitait la mise en relation des chercheur•euses, en poste comme en contrat court, voir bluesky reprendre le créneau est franchement rassurant.
November 21, 2024 at 12:16 PM
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.
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!
Camarades, collègues scientifiques, merci de m'avoir convaincu!
November 20, 2024 at 10:24 AM
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!
Camarades, collègues scientifiques, merci de m'avoir convaincu!