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Daniela Rößler

@roesslerdaniela.bsky.social
1.9K followers 1.5K following 97 posts

Behavioral & Evol Ecologists | Emmy Noether Group Leader Uni Bonn | @sleeblab.bsky.social | Spider Sleep🕷️💤 | Pred-Prey Interactions | Sens Ecol | LGBTQ+ 🌈 | firstgen | she/her | danielaroessler.weebly.com Prev: Harvard, Uni Konstanz & MPI-AB

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Daniela Rößler @roesslerdaniela.bsky.social · 30/09/2026
sweet!!! Congrats!!!
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Jolyon Troscianko @jtroscianko.bsky.social · 30/09/2026
🦋 Butterfly wing patterns create motion illusions that protect them from predators! Our new study (8 years in the making) is out in Nature today doi.org/10.1038/s415... @grahancock.bsky.social @esbriolat.bsky.social @scienceanna.bsky.social @lauraakelley.bsky.social @uniexecec.bsky.social
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Daniela Rößler @roesslerdaniela.bsky.social · 26/09/2026
This is beautiful!!
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Daniela Rößler @roesslerdaniela.bsky.social · 25/09/2026
🙏🏻🙃🥰
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Daniela Rößler @roesslerdaniela.bsky.social · 25/09/2026
Next time you see a garden spider hanging a bit droopy in its web, it might be asleep. #staycurious @asab.org @unibonn.bsky.social @mpi-animalbehav.bsky.social Read "Increased response latency in Araneus diadematus (Araneidae) during putative sleep in the wild" here: tinyurl.com/uznvv58y 🧵5/5
tinyurl.com
Increased response latency in Araneus diadematus (Araneidae) during putative sleep in the wild
Sleep is a seemingly universal behaviour across the animal kingdom, yet for the majority of species, experimental evidence of sleep is still lacking. …
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Daniela Rößler @roesslerdaniela.bsky.social · 25/09/2026
Why this matters: A. diadematus is a common, accessible, #nonmodel species. If a backyard orb‑weaver shows clear sleep‑like arousal patterns in the wild, we suddenly have a powerful system for studying how sleep evolved, outside the lab, in real ecological contexts. 🧵4/5
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Daniela Rößler @roesslerdaniela.bsky.social · 25/09/2026
A subset didn’t respond at all until gently touched awake. Thus, we found a very strong behavioural marker of sleep: increased arousal threshold. 🧵3/5
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Daniela Rößler @roesslerdaniela.bsky.social · 25/09/2026
We tested wild Araneus diadematus with an auditory stimulus: a 400 Hz sound triggering a stereotyped "leg raising" reaction. Active spiders reacted fast irrespective of night or day. Immobile spiders during the day? Also fast. Immobile spiders at night? Much slower! 🧵2/5
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Daniela Rößler @roesslerdaniela.bsky.social · 25/09/2026
🚨New paper🚨 Garden #spiders are everywhere right now—big, beautiful ladies, still in the hub of their 🕸️ But they are not just waiting, at night they also 💤! We found behavioral signatures of sleep in the wild. Out in #AnimalBehaviour w/ @mherberstein.bsky.social tinyurl.com/uznvv58y 🧵1/5
Adult female garden spider (Araneus diadematus) sitting at the center of her orb web, with orange‑brown legs and a patterned abdomen. The web’s radial and spiral threads are sharply visible, catching the light. The background is blurred green foliage with soft circular highlights, making the spider and web stand out in clear focus.
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Daniela Rößler @roesslerdaniela.bsky.social · 23/09/2026
🥰🥰🥰
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Claudia Wascher @wascherclaudia.bsky.social · 23/09/2026
I'm so excited to finally see the special issue "Addressing Biases in Animal Behaviour" fully published: www.sciencedirect.com/special-issu.... Huge thanks to my brilliant co-editors @viveknityananda.bsky.social & @nicolakoyama.bsky.social. Special issue grew from @asab.org's 2024 Winter Meeting 🧵
sciencedirect.com
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Rosemary Mosco @rosemarymosco.com · 18/09/2026
Humaning.
A four-panel comic. In panel 1, a Northern Cardinal and American Goldfinch perch above a busy crowd in a city, looking down. The cardinal says "It's a nice day to go humaning." The goldfinch says "Just look at them. Majestic." In panel 2, a close-up of the two birds. The cardinal says "Nobody tells you that you'll reach a certain age and suddenly get into humaning. I hit 3 years old, and then bam."The birds are looking out over the crowd scene. In panel 3, the cardinal says "Their calls sound funny to us, but each one has a unique meaning." Below, people are saying various things: "I'm tired." "Where's my phone?" "I'd murder a burrito." In panel 4, the birds look down excitedly at a man walking by. The cardinal says "Wait, is that a guy who got dressed in the dark and put his shirt on inside out and backwards?" And the goldfinch exclaims, "Holy... that's a lifer!"
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Maartje van Denderen @maartjevandenderen.bsky.social · 02/09/2026
Read my latest newsletter here! Where I talk a bit about my thesis projects, and what the future holds for me now, after graduation. maartjevandenderen.substack.com/p/long-overd...
maartjevandenderen.substack.com
Long Overdue
An update on my thesis and life after graduation
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Lauren Sumner-Rooney @laurensr.bsky.social · 29/07/2026
📢 JOB ALERT! 📢 I am recruiting a 30-month postdoc to work on modelling the vision of trilobites @hfspo.bsky.social ! If you like 3D data, fossils, and functional morphology, this is the one for you! 📆Deadline 27. Aug Pls contact me with any Qs and share widely! www.bristol.ac.uk/jobs/find/de...
bristol.ac.uk
Details | Working at Bristol | University of Bristol
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Daniela Rößler @roesslerdaniela.bsky.social · 24/07/2026
🙏🏻❤️
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Daniela Rößler @roesslerdaniela.bsky.social · 24/07/2026
❤️🙏🏻
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Daniela Rößler @roesslerdaniela.bsky.social · 24/07/2026
❤️🙏🏻
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Daniela Rößler @roesslerdaniela.bsky.social · 23/07/2026
💤 Tired from #ISBE2026???? No!! Just a bunch of people excited about #animal #sleep ;) Great to connect all the sleep people - and hope to see this group grow at future ISBEs 💤 Hope to see you all tomorrow morning! @nityamohanty.bsky.social @nadjageiger.bsky.social @justmathieu.bsky.social
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Bob Wong @bbmwong.bsky.social · 20/07/2026
So excited for day 1! #ISBE2026 🥰
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Vivek Nityananda @viveknityananda.bsky.social · 13/07/2026
Great advice for an academic jobs as well! Rejection and criticism is constant but it helps to remind yourself "That’s what I do, that’s not what I am".
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Mikkel Roald-Arbøl @roald-arboel.com · 07/07/2026
We do an awful lot of looooong video recordings in our lab and have long wanted an easy way to clip, compress and combine videos for our workflows. So here's #croppy! 🦀 I hope others will find it useful too - I'd love to hear if you do! And would appreciate if you give it a star on Github! 🌟
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bioRxivpreprint @biorxivpreprint.bsky.social · 30/05/2026
ctSpyderFields: A Python package for visual field reconstruction in spiders www.biorxiv.org/content/10.64898/20…
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Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026
It really is 🔥
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Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026
Happy Croppy’ing! Use, share and give the project a star on Github! 🌟🦀
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Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026
Should you have any questions, you can hopefully find answers in our documentation at roald-arboel.com/croppy/. And if you find bugs or have suggestions for new features, please open an issue on Github at github.com/roaldarbol/c....
roald-arboel.com
Croppy - Croppy
Common video chores — cropping, trimming, joining, and compressing — in one window.
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Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026
Installing is also easy! Simply install Pixi (pixi.prefix.dev/latest/insta...) and then run: `pixi global install croppy`
pixi.prefix.dev
Installation - Pixi
Pixi Documentation — Next-gen package manager for reproducible development setups
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Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026
“Jobs” is where you manage all the jobs you’ve created. You can start or stop jobs and monitor their progress. If your computer has multiple GPU/CPU cores, you can even choose to run jobs in parallel for a nice speed-up.
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Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026
“Combine” allows you to concatenate multiple videos while adjusting the encoding settings in one go. Optimal if - like us - your cameras start new recordings every hour.
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Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026
“Compress” allows you to change the encoding of a file, which often means compressing to save space. But it can e.g. also be used to change your “.mov” file to “.mp4” or lower your frame rate.
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Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026
“Clip” allows you to clip in both space and time! You can make cropped regions and/or choose time intervals, and get all the combinations.
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Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026
When you’re happy with your settings, simply add them to the queue, click “Start” and off you go!
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Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026
Don’t want to use expensive video editing software or use ffmpeg in the terminal? Croppy is for YOU! For all actions, you choose where the new files go, what they’ll be called, and how they’re encoded. If you have a GPU, then Croppy detects it automatically to allow you to speed things up-no fuzz.
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Daniela Rößler @roesslerdaniela.bsky.social · 07/07/2026
Our postdoc @roald-arboel.com made a thing! #Croppy is #free and awesome for fast and effective #video #editing and it has a #GUI! Need to crop a part of a video? Need to trim a video? Need to combine videos? Need to compress a video? roald-arboel.com/croppy/
Icon of the software with a crab holding scissors cutting a video strip
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Daniela Rößler @roesslerdaniela.bsky.social · 06/07/2026
Loving the vibe! 💪🏼💪🏼💪🏼
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Atal Pande @atal-pande.bsky.social · 03/07/2026
Really excited to share that my first PhD chapter is now out in @currentbiology.bsky.social! 🕷️👀 We show that visually hunting spiders have repeatedly evolved forward-facing eyes, highlighting the remarkable evolutionary flexibility of their modular visual system. doi.org/10.1016/j.cu...
cell.com
Hunting ecology predicts eye arrangements in the modular visual system of spiders
Pande et al. show that visually hunting spiders have convergently evolved forward-facing eyes. The positions and orientations of the eyes show the greatest morphological disparity and fastest evolutio...
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Daniela Rößler @roesslerdaniela.bsky.social · 02/07/2026
Amazing!! Congrats to all! Especially @atal-pande.bsky.social ! 🥳🥳🥳
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Lauren Sumner-Rooney @laurensr.bsky.social · 02/07/2026
Beyond proud of @atal-pande.bsky.social, whose first PhD chapter is out now in @currentbiology.bsky.social! Atal shows that spiders that use their vision to hunt have convergently evolved similar eye arrangements, which imply lots of resampling of frontal space www.sciencedirect.com/science/arti...
sciencedirect.com
Hunting ecology predicts eye arrangements in the modular visual system of spiders
Vision is one of the most important senses used by animals and contributes to fundamental behaviors, including foraging, navigation, and mate detectio…
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Evolutionary Biomechanics lab Greifswald @evoimec.bsky.social · 02/07/2026
Spider running performance varies enormously. We joined forces with David Labonte's Evolutionary Biomechanics lab in London for the broadest spider speed assay so far: 258 spp / 139 families Preprint: doi.org/10.64898/202... Press coverage by the New Scientist: www.newscientist.com/article/2532...
newscientist.com
The world's fastest spider tops 3.5 metres per second
The most comprehensive database ever compiled of how fast arachnids can run has shown how leg anatomy and evolutionary history influence spiders’ running speed
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Daniela Rößler @roesslerdaniela.bsky.social · 25/06/2026
Please spread this talented and wonderful human’s name and work. Maartje @maartjevandenderen.bsky.social just finished her Scientific Illustration Master and is leaping into freelancing next. Got 💰 and #illustration needs? Look no further!! www.maartjevandenderen.nl
maartjevandenderen.nl
Maartje van Denderen
Maartje van Denderen is a Scientific Illustrator, interested in insects, mushrooms, and plants.
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Daniela Rößler @roesslerdaniela.bsky.social · 25/06/2026
Oh - and: f%#! AI for scientific illustrations!!!
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Daniela Rößler @roesslerdaniela.bsky.social · 25/06/2026
Massive congrats to @maartjevandenderen.bsky.social for defending her fantastic thesis! 🥳 Maartje did her scientific illustration thesis with us on #spider #sleep @sleeblab.bsky.social Super cool experience & a pleasure to advise her. 👀 to hire an #illustrator >>> 💻 📞 Maartje!!! Colored pencil 🤯:
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Evolutionary Biomechanics lab Greifswald @evoimec.bsky.social · 24/06/2026
The #Australian ballista #spider (Propostira sp.) uses its silk's elastic energy storage capacity to build the most powerful snare and selective in the #animal kingdom. Read about our discovery here: doi.org/10.1016/j.cu... Video by Ajay Narendra. Recorded with 3,000 fps, playback 100x slowed down!
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Daniela Rößler @roesslerdaniela.bsky.social · 24/06/2026
🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳🥳
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SLEEB Lab Bonn @sleeblab.bsky.social · 23/06/2026
Off to the caves! We’re finally back in the field: filming sleepy cave spiders! 🕷️🕸️ Let’s see what we find! #fieldwork #animalsleep #caves @roald-arboel.com @nadjageiger.bsky.social @roesslerdaniela.bsky.social @unibonn.bsky.social
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Nadja Geiger @nadjageiger.bsky.social · 01/06/2026
New paper alert!🕷️✨ Tiny spider. Shiny abdomen. Suspiciously wiggly bum. In our new study, we asked what abdomen bobbing in this jumping spider is really all about: Cute? Yes. Meaningful? Let’s find out...! [1/8] @unibonn.bsky.social link.springer.com/article/10.1007/s00265-026-03745-1
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Daniela Rößler @roesslerdaniela.bsky.social · 01/06/2026
🧵 Summary thread on our latest #spider #research. No time to read the #study ? But dying to know why spiders may twerk? This is for you: 🧵
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Daniela Rößler @roesslerdaniela.bsky.social · 01/06/2026
Thanks! Yes, unfortunately they did :/
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Daniela Rößler @roesslerdaniela.bsky.social · 31/05/2026
Super creeps!! I love them!!!! Thanks for sharing this one 🥰
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Daniela Rößler @roesslerdaniela.bsky.social · 31/05/2026
Thank YOU for posting all the good jumpies out there!! Love seeing others doing the wiggles :))
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