Dr Urska Demsar
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udemsar.bsky.social
Dr Urska Demsar
@udemsar.bsky.social

Associate Professor. GIScience, Movement Analytics and hiking/walking photos.

Environmental science 43%
Computer science 17%
Pinned
New paper with @beatezein.bsky.social & @jedalong.bsky.social:

⭐A new data-driven paradigm for the study of avian migratory navigation⭐

We propose how the multi-modal multi-scale nature of navigation could be studied w/ data mining, machine learning & AI.

link.springer.com/article/10.1...
A new data-driven paradigm for the study of avian migratory navigation - Movement Ecology
Avian navigation has fascinated researchers for many years. Yet, despite a vast amount of literature on the topic it remains a mystery how birds are able to find their way across long distances while ...
link.springer.com
“Uruguay did what most nations still call impossible: it built a power grid that runs almost entirely on renewables—at half the cost of fossil fuels. The physicist who led that transformation says the same playbook could work anywhere—if governments have the courage to change the rules.”
Uruguay’s Renewable Charge: A Small Nation, A Big Lesson For The World
Uruguay built a power grid that runs 99% on renewables—at half the cost of fossil fuels. Here’s how its bold energy overhaul became a global model.
www.forbes.com

I don't think that's possible without students acquiring context/knowledge without using LLMs. But I don't think that is realistic anymore.

Reposted by Urška Demšar

One possible (or even likely?) outcome of the LLM and genAI craze might not be the continued death of expertise, but its rebirth.

When nothing can be trusted as real, people will crave humanity, human-verified reporting, and human-generated information. The bullshit machines will be shunned.

Reposted by Urška Demšar

Happy new year! My all sky camera imaged the sky every 15 seconds and this picture shows what happened in the sky in 2025. It shows the length of the night and day with the hourglass shape, the monthly lunar cycle with the diagonal bands, the elevation of the Sun at local noon, and lots of clouds.

Reposted by Urška Demšar

Can you see fireworks from space? 🎆

If you get lucky you can, but nature always puts on the best show.

We're celebrating the #NewYear with this stunning sight from the International Space Station: a giant blue jet and red sprites shooting upwards from a thunderstorm.

www.esa.int/ESA_Multimed...

Very nice!!
Here's my favourite example - I was looking for information about a researcher named Vors, at U of Sydney many years ago. I love how the LLM got stuck in the alphabet - exactly what you'd expect from next-token prediction!

Reposted by Urška Demšar

Goat down! I repeat: Goat down! www.dn.se/sverige/stor...

Reposted by Urška Demšar

NEW JOB in #ornithology and #conservation with @rspb.bsky.social to plan and support #island restoration projects in the UK Overseas Territories: buff.ly/yQfjqWI
This is WILD.

Power goes out in San Francisco and the robot cars, needing the lights to "self" drive, all stop at once, blocking streets and emergency vehicles - which are needed more than ever in a black out!

We knew AI causes power outages. Turns out it also makes them worse by being stupid.
Waymo has halted service in San Francisco after numerous videos & images showed its autonomous cars snarling traffic during the blackout.

With traffic lights down, Waymos across the city stopped dead in their tracks at intersections.

missionlocal.org/2025/12/sf-w...
Waymo halts service during massive S.F. blackout after causing traffic jams
Waymo stopped its service across San Francisco on Saturday after numerous autonomous vehicles caused traffic jams in the city.
missionlocal.org

Reposted by Urška Demšar

The days will start getting longer…

…wait for it…

…now!

Winter solstice 2025, December 21st, 15:03 UTC

Reposted by Urška Demšar

Winter Solstice, frosty and a only few hours of daylight …

But flowers still bloom in my garden in the North of Scotland

#MyGarden
#bloomscrolling
#Hebe 💜

Reposted by Urška Demšar

A bit of solstice cheer from Arran. The "Christmas roses" in my garden are blooming, as is the gorse and more importantly the ivy. The sun didn't show it's face today but a faint glow appeared on the horizon at midday. It may be dark but there are points of light to hold on to.

Reposted by Urška Demšar

Happy Winter Solstice!

On midwinter’s day, the sun sets between the pair of stones that form the largest trilithon at #Stonehenge

Farewell to the shortest day of the year, as we look forward to lighter days ahead! ☀️

#StandingStoneSunday
#Archaeology
Closing out my year with a journal editor shocker 🧵

Checking new manuscripts today I reviewed a paper attributing 2 papers to me I did not write. A daft thing for an author to do of course. But intrigued I web searched up one of the titles and that's when it got real weird...
Do not cite an academic paper unless you’ve read it
AI Is Inventing Academic Papers That Don't Exist -- And They're Being Cited in Real Journals
Academic articles from authors using large language model are creating an ecosystem of fake research that threatens human knowledge itself.
www.rollingstone.com
Absolutely nobody asked for this BUT

English Anglican cathedrals that have burned down, fallen over, and sank into the swamp: a thread.

Reposted by Urška Demšar

In this Article, Battiston et al. discuss the emerging technique of higher-order network analysis, and its application to understanding social systems.
Higher-order interactions shape collective human behaviour - Nature Human Behaviour
Battiston et al. discuss the emerging paradigm of higher-order network science and its applications to social systems and human dynamics.
www.nature.com

Reposted by Urška Demšar

Are you at #BES2025? Come along to our popular annual social event from 16:00-19:30 on Tuesday at the Innis & Gunner Tap Room! #movecol @britishecologicalsociety.org
this field biologist does a great job highlighting the insidiousness of AI editing

these one-click AI edit buttons are incredibly appealing to many photographers, amateurs and professionals alike, and are framed as innocuous

this is worth sharing and educating people about
Is the over use of SatNavs causing potential future problems for the population. I discuss with writer Moheb Costandi in his section of this article on

Five voices on the future of human intelligence:

newhumanist.org.uk/articles/648...
Five voices on the future of human intelligence
How can we all stay smart in a changing world? We asked the experts
newhumanist.org.uk

Reposted by Urška Demšar

Mid-step Puffin. 😍
#birds 🪶

You can buy my exclusive Birds calendars here;
www.carlbovis.com/2026-birds-c...

True, but AGILE should reconsider moving this one to a later time.

Very unfriendly deadline...

Reposted by Urška Demšar

🚨NEW PUBLICATION!🛥

64% of vessels operating within Scotland’s Marine Protected Areas (MPAs) are not broadcasting AIS, meaning the majority of vessel activity within MPAs is invisible to the most frequently used monitoring and management systems.

This would allow posting pre-prints of papers that are submitted to journals with a double-blind review, which currently do not allow pre-prints.

A question for science bluesky, is there a pre-print service that would allow anonymous pre-prints? E.g. you could submit a pre-print at the same time as you submitted it as a manuscript to a journal, but the pre-print wouldn't have any names on it until later, when the paper was published. 1/2

Reposted by Urška Demšar

‘Game changer’: System to track small animals from space takes flight—again | Science | AAAS www.science.org/content/arti... #ornithology
‘Game changer’: System to track small animals from space takes flight—again
The project lost its data stream in 2022 after the war in Ukraine began
www.science.org