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Ollie Wearn

@olliewearn

Conservationist & scientist w/ Snow Leopard Trust. Wildlife monitoring | Data analytics | Camera traps | Conservation tech | Cats | Carnivores | Primates | Tropical forests | Asia

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08.02.2024
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Latest posts by Ollie Wearn @olliewearn

You can now add (for $20) an AI agent to your RStudio sessionโ€ฆ

Any support for non-profits @posit.co? This could help to speed up analyses in wildlife conservation.

05.03.2026 16:27 ๐Ÿ‘ 5 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Broadly agree, Zack, & really important to hold Starmer to account for his own words! But not sure I agree with the last sentence, at least on current evidence. It doesnโ€™t seem to be the case that Starmerโ€™s doing anything T wants, more that heโ€™s playing the long game.

02.03.2026 09:53 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Birds are vanishing from tropical forests. Is another โ€˜silent springโ€™ coming? As mysterious bird declines crop up in the Amazon and beyond, scientists suspect climate change may be to blame

Although we have known this for many yearsโ€”e.g. @neobirdconserve financed early work by Vitek Jirinekโ€”this should have been the top news headline last week. These declines in 'pristine' tropical forests are well-documented, poorly understood and continue apace. www.science.org/content/arti...

28.02.2026 08:47 ๐Ÿ‘ 2 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

I didnโ€™t notice anywhere that it said it was AI, but also didnโ€™t notice the name of an author either, which is a bit of a red flag

26.02.2026 16:36 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Estimating Sunda Clouded Leopard Lifespans From Minimum Residence Times via Longโ€Term Photoโ€Tracking How long do Sunda clouded leopards live in the wild? Detectability challenges and transient behavior make this elusive species difficult to track. Based on compiled photographic records, we report th....

The oldest known wild Sunda clouded leopard is a 6.51-year-old female! Similar to the oldest known mainland leopard cat too.

Pretty neat what long-term camera trap studies can tell us.

onlinelibrary.wiley.com/doi/10.1111/...

26.02.2026 04:10 ๐Ÿ‘ 10 ๐Ÿ” 7 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Hi Laura, this write-up is AI generated I think? Just flagging this for others.

25.02.2026 16:40 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Yep I agree, SCR certainly not easy, but the statistical foundations are solid, and itโ€™s easier than the โ€˜unmarkedโ€™ route (REM/REST etc.)! Thereโ€™s no reason why it shouldnโ€™t be being applied across lynx populations in Europe in a standardised way.

Interesting study, too, thanks for sharing!

23.02.2026 14:01 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Some argue protected areas in fire-prone landscapes can undermine forest carbon (fuel build-up โ†’ higher fire risk). This paper shows Spanish protected areas consistently outperform comparable unprotected lands, strongest in National Parks.

iopscience.iop.org/article/10.1...

17.02.2026 15:36 ๐Ÿ‘ 31 ๐Ÿ” 12 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Lynx (including Eurasian) are actually one of the โ€œeasierโ€ ones, since you can identify individuals (unlike for, say, deer). Done with good survey design (and that doesnโ€™t mean throwing a few cameras up and hoping for the best ๐Ÿค“) and analysis, you can get an accurate & precise population estimate.

19.02.2026 13:05 ๐Ÿ‘ 6 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

I donโ€™t know what this is, but I am here for the team names

18.02.2026 22:35 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Remoteโ€Control Science in Ecology: A Hidden Face of Scientific Neocolonialism We introduce the concept of โ€œremote-control scienceโ€ as a modern form of scientific neocolonialism in ecology, where researchers, preferably from the Global North, control projects in the Global Sout...

Essential reading for conservation scientists & ecologists (in fact anyone doing science across borders!) ๐ŸŒ๐Ÿงชhttps://onlinelibrary.wiley.com/doi/10.1111/ele.70227?af=R

Remote-control science is an internet-enabled form of "parachute" science

FWIW, I see a lot of this in AI and macroecology research

18.02.2026 12:03 ๐Ÿ‘ 27 ๐Ÿ” 9 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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Podemos vivir sin lobos; viviremos peor Matar 100 ejemplares, como ya ha sucedido en los montes asturianos y cรกntabros, es una muestra de populismo rural que desprecia el conocimiento cientรญfico y la รฉtica

"Podemos vivir sin lobos (...) como estuvimos a punto de vivir sin linces, como posiblemente podamos vivir en pocos aรฑos sin urogallos, salmones y anguilas (...). Pero somos muchas las personas que no queremos vivir sin ellos"
Lรฉete estoy de @ernestodmartin.bsky.social
elpais.com/clima-y-medi...

13.02.2026 17:45 ๐Ÿ‘ 18 ๐Ÿ” 12 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
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๐Ÿ“ฃ NEW! Iโ€™ve just released the BIGGEST and perhaps most creative project Iโ€™ve ever worked on!

โ€œSearching for Birdsโ€ searchingforbirds.visualcinnamon.com ๐Ÿค

A project, an article, an exploration that dives into the data that connects humans with birds, by looking at how we search for birds.

12.02.2026 10:02 ๐Ÿ‘ 476 ๐Ÿ” 176 ๐Ÿ’ฌ 25 ๐Ÿ“Œ 49

Oh thatโ€™s good ๐Ÿ‘

11.02.2026 13:18 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

February: โ€œEven the land is tired. Most of the birds that can afford it have gone to Floridaโ€ ๐Ÿค“

11.02.2026 13:14 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Would be interesting to compare the results on more recent models - but this problem wonโ€™t go away. LLMs are always going to be extrapolating from what has already, and often, been thought, which is why they arenโ€™t windows to the future but anchors to the past.

07.02.2026 11:55 ๐Ÿ‘ 348 ๐Ÿ” 113 ๐Ÿ’ฌ 11 ๐Ÿ“Œ 9

And, bonus fact, it actually spells pretty good (unlike, say, cat pee!). A musky, sweet and sour smell.

In the dry climate of the Gobi (where our long-term study is), the smell doesnโ€™t last as long as in the wet Himalayas, so itโ€™s extra special when you find a strong scent mark - it must be fresh!

02.02.2026 23:23 ๐Ÿ‘ 4 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Welcome | Bayesian analysis of capture-recapture data with hidden Markov models This is a textbook on the analysis of capture-recapture data with hidden Markov models (HMM) implemented in the Bayesian framework with R and NIMBLE.

Ok, I will keep an eye out for future courses (in-person if possible)! And may I salute you for providing your physical book as an open online version, too ๐Ÿซก Everyone is able to learn more about these models, without needing to jump over a paywall oliviergimenez.github.io/banana-book/

02.02.2026 22:38 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Hi Olivier, looks very useful; will there be any training courses/workshops on the topics in the book?

02.02.2026 08:24 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

This has been my experience too. When I run out of brainpower, I sometimes turn to LLMs. But then comes the endless back-and-forth with the thing to actually make the code work; I guess thatโ€™s the vibe coding part ๐Ÿฅบ I canโ€™t imagine what this is doing to the skills of those newly learning codingโ€ฆ

01.02.2026 16:52 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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The 10th Annual #Tech4Wildlife Challenge is starting soon!๐Ÿ“ธ

Help us celebrate a decade of conservation technology by sharing how you use #Tech4Wildlife throughout next week.

Learn how to participate ๐Ÿ‘‰ wildlabs.net/article/join...

#conservation #conservationtech #naturetech

26.01.2026 21:40 ๐Ÿ‘ 3 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Cool! Carnivores help mycorrhizal fungi to disperse.

Paper is here for those interested (although paywalled so I canโ€™t actually read it): onlinelibrary.wiley.com/doi/10.1111/...

26.01.2026 08:24 ๐Ÿ‘ 4 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Coffee! โ˜•๏ธ ๐Ÿซ˜

For the UK: Kiss the Hippo has great credentials (direct sourcing, carbon neutral, organic) kissthehippo.com/pages/kiss-t...
For the Netherlands: Wakuli does some great work direct with suppliers www.wakuli.com/pages/mission

20.01.2026 17:38 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Ah I see. Yep monitoring is only useful when properly embedded in the conservation work and when communities (as in the link above โ˜๏ธ), managers, everyone involved, is invested in it, and it has a very clear purpose in project design. Monitoring (and especially AI ๐Ÿ˜) is not useful in and of itself.

20.01.2026 17:11 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Excuse me?

19.01.2026 22:44 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
The Himalayan women tracking Indiaโ€™s snow leopards | BBC News India
The Himalayan women tracking Indiaโ€™s snow leopards | BBC News India YouTube video by BBC News India

Love to see this: a womenโ€™s camera trapping group in the high mountains of Himachal Pradesh, western Himalaya. All power to them.

Exemplary data collection in the field shown as well, including proper testing of camera setup using โ€œwalk testโ€ ๐Ÿ˜‡

#cameratrap ๐ŸŒ๐Ÿงช

youtu.be/98Tigg7WXCg?...

19.01.2026 11:39 ๐Ÿ‘ 26 ๐Ÿ” 6 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Beautiful and incredible scenes from the centre of the Netherlands, a country with 1.5 times the density of people in the UK. A pack of 11 wolves roaming through the snow!

16.01.2026 12:11 ๐Ÿ‘ 66 ๐Ÿ” 16 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1

Alongside โ€œAI colonialismโ€, the other big worry with this is that modelling results are never confronted with reality, they exist in some kind of desk-based bubble. All models are wrong, only some are useful. Itโ€™s by going out & touching the grass that we can sort the useful from the nonsensical.

14.01.2026 11:17 ๐Ÿ‘ 30 ๐Ÿ” 8 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1

~0.2 snow leopards over that area ๐Ÿ˜‰

25.11.2025 21:28 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
A landscape view of the rugged and barren Tost Mountains in the South Gobi, Mongolia. Taken using a drone at around sunset, the mountains have an orange-green hue, and the scene would not look out of place on Mars!

A landscape view of the rugged and barren Tost Mountains in the South Gobi, Mongolia. Taken using a drone at around sunset, the mountains have an orange-green hue, and the scene would not look out of place on Mars!

A droneโ€™s-eye view of the South Gobi, Mongolia, at sunset. Home to our long-term study of snow leopards & the social-ecological system of ungulates, carnivores & livestock herders.

You might wonder if anything was living down there. But there are 20 snow leopards & 2000 ibex. Life finds a way! ๐ŸŒ

25.11.2025 10:17 ๐Ÿ‘ 22 ๐Ÿ” 4 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1