Ollie Wearn

@olliewearn.bsky.social

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

There’s a certain poetic neatness to the Pacific Swifts nesting on the State Ballet & Opera Theatre in the centre of Ulaanbaatar, Mongolia. I bloody love swifts, whether seen high on a mountain top or in the heart of a capital city. Don’t their screams in Summer bring everyone a bit of joy?

Neoclassical style column of the state ballet & opera theatre, with a Pacific swift nest in the light fittingClose up of the nests around the light fittingFront view of the theatre lit up at night

There are more than 11,000 kinds of birds. I evaluated them all and made a definitive list of the 100 greatest names. I consider myself a bird name connoisseur but these blew me away. Over the next 10 days I'll add them to this thread. This is the hardest thing I’ve ever done.

Spotted a #wildcat, my 1st in broad daylight! 📍 Las Ubiñas-La Mesa Natural Park, Asturias, north of Spain Hybridisation likely an issue for the species in the park (as elsewhere); cat colonies are present in most villages. This one at least looks relatively pure bred to me (but genetics needed).

NSF LTER program “archived”. LTER=“Long Term Ecological Research”. This program has been incredibly successful, incredibly frugal for what they accomplish, and…of course…targeted by evil know-nothings. My heart is breaking.

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And as an extension of this: BirdNet and other global AI classifiers are not useful, generally, for biodiversity research. Despite the #AIhype 😏 For example, I saw a recent paper in PNAS using BirdNet concluding that bird diversity was higher in pasture and agriculture than in old-growth forest 🙃

Chris Sharpe@sharpebirder.bsky.social · 5mo ago

I am a human non-passive acoustic monitor for biodiversity research and I approve this message! 😉 doi.org/10.1111/2041... #ornithology

Surprising piece of information: on average, European eel reach sexual maturity at large age than any whale species. And certainly much older than any other exploited fish species. That's why short-term measures are not useful. Eels need a moratorium mimicking the whaling ban (see below)

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Celebrated #WorldRewildingDay looking for brown bear signs in a wild corner of northern Spain. Success! Evidence of a bear enjoying last autumn’s beech mast. We also found clues of other interactions with the beech tree: some glistening inkcaps, and a dormice’s cache of hazelnuts inside a treehole

A lone hiker is in the mid distance, traversing heather & gorse, with a beech forest behind. In the distance a snow capped ridge of mountains A series of bear dung boluses filled with beech seed husks sits in a crack in a rock surrounded by soft dry mossA wonderful ent of a beech tree, its centre completely rotted out and three tripod legs left holding it up. All the “legs” and branches a shooting out a twisting at different anglesA cluster of glistening inkcap mushrooms growing inside a tree hole, surrounded by mulch filled with beech seeds and hazelnuts

I've had this from a journal: "Print your figure in a a letter size paper, place it *on the floor*, stand next to the page. Any text or number that you can´t read from that distance needs to be enlarged" Who is reading papers like this?! Also, I haven't had access to a printer since about 2007...

At the sharp edge of defending nature across the planet, rangers suffer. That’s for sure. They are also largely overlooked and undervalued. Hence, the importance of this call for urgent mental health support for rangers👇 Now that we can’t claim we didn’t know, what are we all going to do about it?

David Roberts@drdavidlroberts.bsky.social · 5mo ago

🚨New Paper🚨'Conservation Rangers Urgently Need Mental Health Provision' in @consletters.bsky.social by Soofi et al. inc @drdavidlroberts.bsky.social @dice-kent.bsky.social Great work by Soofi bringing this paper together!!! doi.org/10.1111/con4...

My kind of paper: tech (collars/tags), cool movement data, a hypothesis rooted in field observations, and a surprising finding!

Matthias Loretto@matthiasloretto.bsky.social · 5mo ago

For decades biologists assumed ravens follow wolves to their kills. Our paper @science.org shows something different: ravens rarely follow wolves far. Instead they remember areas where wolf kills are common and return to them—sometimes from >150 km away. doi.org/10.1126/science.adz9467 📷Dan Stahler

Incredibly shortsighted decision by our govt to cut development funding, including taking an axe to nature recovery projects. It diminishes us a country, both at home & abroad. And so we slip inexorably ever closer to the little Britain dream of Farage and his billionaire mates.

Damian Carrington@dpcarrington.bsky.social · 5mo ago

UK slashes climate aid programmes for developing countries #climatecrisis Story by @fionaharvey.bsky.social www.theguardian.com/environment/...

Although we have known this for many years—e.g. @neobirdconserve financed early work by Vitek Jirinek—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...

Birds are vanishing from tropical forests. Is another ‘silent spring’ coming?

As mysterious bird declines crop up in the Amazon and beyond, scientists suspect climate change may be to blame

science.org