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Reposted by Martin Philippe-Lesaffre

FRB｜Fondation pour la recherche sur la biodiversité @frbiodiv.bsky.social · 14d

🏝️ Saviez-vous que 3/4 des extinctions récentes ont eu lieu sur des îles ?

#FRB-Cesab #Rivage propose un cadre inédit pour évaluer cette vulnérabilité. Leur objectif : replacer les îles au cœur des priorités de conservation.

📌 bit.ly/4mrUBil

@celinebellard.bsky.social @claramarino.bsky.social

Les îles : joyaux de biodiversité en péril - Fondation pour la recherche sur la biodiversité

La théorie de l’évolution a fait ses premiers pas sur une île – et ce n’est pas un hasard. En 1835, lors de son voyage aux Galápagos, Charles Darwin observe des pinsons avec attention. Ce sont les dif...

bit.ly

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Reposted by Martin Philippe-Lesaffre

Nature Reviews Biodiversity @natrevbiodiv.nature.com · Jul 30

ICYMI: New online! Drivers and solutions to Southeast Asia’s biodiversity crisis

Drivers and solutions to Southeast Asia’s biodiversity crisis

Nature Reviews Biodiversity, Published online: 23 July 2025; doi:10.1038/s44358-025-00064-7The terrestrial ecosystems of Southeast Asia are both globally important reservoirs of biodiversity, and a provider of resources and livelihoods for millions of people across the region. This Review summarizes the threats to biodiversity in Southeast Asia, and the conservation solutions required to ensure successful outcomes for biodiversity and people.

bit.ly

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Jun 25

📣 We see this mapping as a step toward a more comprehensive threat landscape.

Thanks to all co-authors : @anabenlop.bsky.social @iagoferreiro.bsky.social @brodieecology.bsky.social Laura Maeso-Pueyo and Dominik Schüßler.

and to our academic support : @mncn-csic.bsky.social @mncn-bgcg.bsky.social

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Jun 25

🌎🌍🌏Hotspots and refuges:
🔥 Southeast Asia, West Africa, Atlantic Forest
🛡️ Remote areas of Borneo, Central Africa, Western Amazon

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Jun 25

📊 Findings:
🔻 Only ~11% of tropical forest shows low pressure (HP < 0.5)
🔻 ~9% qualifies as high-pressure hotspots (HP > 0.9)
🔻 Net global increase from 2000–2015, driven by increased access (notably Amazon, Southeast Asia)

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Jun 25

📈 Model performance:
High predictive performance + meaningful relationships between hunting probability and key drivers of hunting pressure (HP):
🔻Distance to the first human settlement
🔻Forest patch size
🔻Socioeconomic context
🔻Protected area

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Jun 25

👨‍💻👩‍💻 Our approach:
We built a species-agnostic machine learning approach using ecological and socio-economic :
🔻 2,463 geo-referenced sites (hunted & non-hunted)
🔻 Random forest classification to predict hunting prob.
🔻 Predictors: accessibility, habitat quality, human context
🔻 1 km² resolution

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Jun 25

💡Why a global map of hunting pressure?

Hunting is a leading cause of biodiversity loss, especially for tropical mammals and birds.
Yet, until now, we lacked spatially explicit, standardized metric across the tropics.
Previous efforts were species-specific, regional or relied on IUCN-based proxies.

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Jun 25

🖨️ New preprint out !

We present the first global, high-resolution, spatiotemporal maps of hunting pressure across tropical forests 🦜🐒🌴.

This long-standing blind spot in biodiversity threat mapping is now filled 😎:

ecoevorxiv.org/repository/v...

Hotspots, refuges, and rising risk: mapping tropical hunting pressure across space and time

ecoevorxiv.org

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Reposted by Martin Philippe-Lesaffre

Ana Benítez @anabenlop.bsky.social · May 18

New paper out! We present a framework for quantifying the vulnerability of terrestrial insular biota to multiple threats. This is the first output of the #RIVAGE project, funded by @frbiodiv.bsky.social & brilliantly led by @celinebellard.bsky.social.

peercommunityjournal.org/articles/10....

A framework to quantify the vulnerability of insular biota to global changes

peercommunityjournal.org

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Apr 15

⚠️Some birds rarely recorded as cat prey might still be highly vulnerable based on their traits alone.

Thanks to my co-author Elsa Bonnaud and to @univparissaclay.bsky.social for supporting this research.

Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Apr 15

🌍 When assemblages of species are similar, domestic cats consistently target birds with similar traits —size, behavior, and range matter everywhere.

🪶The trait-based approach offers the possibility of predicting the vulnerability of birds when data is insufficient.

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Apr 15

Our paper on 🐈 vs. 🐦 , an overview 🔐:
Ever wonder how domestic cats choose their prey? We combined citizen science and machine learning to find out what makes birds attractive to cats. Small size, generalist habits, and large range put birds at higher risk!
www.sciencedirect.com/science/arti...

Pinpointing bird species vulnerability to free-ranging domestic cats using trait-based predictive models

We developed a method to assess bird species’ vulnerability to predation by free-ranging domestic cats (Felis catus) using prey preference data from c…

www.sciencedirect.com

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Jan 21

I'm really happy to see that more and more articles on ecology are highlighting the fact that we really need to adopt more causal approaches or at least try !

Laura Dee @lauradee.bsky.social · Jan 20

Very excited this paper is now out in Ecology Letters onlinelibrary.wiley.com/doi/epdf/10.... #causalsky

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Reposted by Martin Philippe-Lesaffre

Nicolas Mouquet @nmouquet.bsky.social · Dec 5

🪱 Putting Earthworm conservation on the map!

Check out the last publication of our #CESAB LANDWORM and IMPACT groups by @sylvaingrd.bsky.social et al.

👉 bit.ly/4ij7sTg

🔑 They are soil keystones & face global threats, demanding broad-scale, multifaceted diversity indicators for conservation.

🧪🌐🌍🦤

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Nov 27

Many thanks to all the co-authors, (@conservbytes.bsky.social and @franckcourchamp.bsky.social already on Bluesky) and to the Université Paris-Saclay for making this study possible.

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Nov 27

It also improves knowledge of the species most likely to be depredated by cats on mainlands, something that has been little studied outside Australia. We hope these results will help to better understand the potential impacts of free-ranging cats on mainlands.

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Nov 27

The predation pattern showed a shift in favor of species with higher body mass, compared to Europe and North America. Our study showed that prey-predator relationships can change even on a macro-ecological scale, but the co-evolutionary context seems to strongly mediate this.

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Nov 27

We observed that the likelihood of being depredated by cats depended on traits and phylogenies, with some species being more likely to be depredated than others, and this dependence is similar between continents, with the exception of Australian mammals.

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Nov 27

Combining observed and predicted cat diet data from three continents, Australia, Europe and North America, we compared prey and non-prey species groups within and between continents. These comparisons were made on the basis of species characteristics and phylogenies.

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Martin Philippe-Lesaffre @mphilippelesaffre.bsky.social · Nov 27

Our new article, published in
@ecography.bsky.social, examines free-ranging domestic cat predation patterns on mainlands, focusing on how coevolutionary differences between continents might influence these patterns :
nsojournals.onlinelibrary.wiley.com/doi/full/10....

Differential predation patterns of free‐ranging cats among continents

Co-evolutionary relationships associated with biogeographical context mediate the response of native prey to introduced predators, but this effect has not yet been demonstrated for domestic cats. We ...

nsojournals.onlinelibrary.wiley.com

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