Simon Garnier

swaRmverse: An R package for the comparative analysis of collective motion Collective motion, that is the coordinated spatial and temporal organisation of individuals, is a core element in the study of collective animal behaviour. The self-organised properties of how a g...

with @shoalgroup.bsky.social and @lostintheswarm.bsky.social ✨
Link to the paper here: doi.org/10.1111/2041...

Made possible by an @asab.org Conference Attendance Grant 🥰🙏

Poster with the workshop's title on the left: "Into the Swarm-Verse: a new R package to analyse trajectories of animals on the move". The speaker's name is indicated as 'Marina Papadopoulou' and the date/time as "Tuesday 26th of August, 2025, 1:10-2:40 PM.". On the right there is an example of a swarm space (points of different colors in 3 dimensions), the pictures of the animal groups that they represent, and the logo of the R package. At the bottom, there is the reference to the paper: "Papadopoulou M., Garnier S., & King A.J. (2024) swaRmverse: An R package for the comparative analysis of collective motion. Methods in Ecology and Evolution"

📢Coming up, workshop at #Behaviour2025 on our swaRmverse package!

🗓️Tue 26/8, 13:10–14:40
💻Theory & R practical (feel free to bring your data)
🎯Discussion on comparative analysis & metrics

🙏Come & recommend features for version 2.0!

👉RSVP on the app
More info: behaviourindia2025.in/workshops.html

Decentralised construction of a global coordinate system in a large swarm of minimalistic robots - Swarm Intelligence Collective intelligence and autonomy of robot swarms can be improved by enabling individual robots to become aware that they are the constituent parts of a larger whole and to identify their role with...

Super excited to announce that my work with @joefresna.bsky.social and @lostintheswarm.bsky.social has just been published in the Swarm Intelligence journal. We show how a swarm of minimalistic robots can self-localize and construct a global coordinate system.
link.springer.com/article/10.1...

Argentine ants drinking from a droplet of sugar water

Meal time

#ants

Call for Projects : Postdoctoral Study grants Apply online until Monday, March 31, 2025. Opening on Monday, February 3 www.fondationfyssen.fr

Call for projects - Postdoctoral Study Grants 2025

I'm so looking forward to it! This will be a fantastic event. Join us in Venice next year, it will be fun!

Fool’s Errand: Looking at April Fools Hoaxes as Disinformation Through the Lens of Deception and Humour Every year on April 1st, people play practical jokes on one another and news websites fabricate false stories with the goal of making fools of their audience. In an age of disinformation, with Faceboo...

Serious paper about a silly day:

Dearden E, Baron A. Fool’s Errand: Looking at April Fools Hoaxes as Disinformation Through the Lens of Deception and Humour. Computational Linguistics and Intelligent Text Processing. doi:10.1007/978-3-031-24337-0_32

link.springer.com/chapter/10.1...

Top: an image showing moderate barrel distortion. Bottom: the same image after lens calibration (the distortion is corrected).

Rvision 0.8.0 is here! Its toolbox now includes camera calibration tools, ORB keypoint detection & matching, pyramid resampling, and much more. It also accepts GStreamer pipelines to read feeds from a wide range of cameras. More info at swarm-lab.github.io/Rvision/inde...

#computervision #rstats 🧪

5. Bailey, J. D., Wallis, J., & Codling, E. A. (2018). Navigational efficiency in a biased and correlated random walk model of individual animal movement. Ecology, 99(1), 217–223. doi.org/10.1002/ecy....

6/6

4. Burford, B. P., & Robison, B. H. (2020). Bioluminescent backlighting illuminates the complex visual signals of a social squid in the deep sea. Proceedings of the National Academy of Sciences of the United States of America, 117(15), 8524–8531. doi.org/10.1073/pnas...

5/6

Handwriting but not typewriting leads to widespread brain connectivity: a high-density EEG study wit... As traditional handwriting is progressively being replaced by digital devices, it is essential to investigate the implications for the human brain. Brain electrical activity was recorded in 36 univers...

3. Van der Weel, F. R. (ruud), & Van der Meer, A. L. H. (2024). Handwriting but not typewriting leads to widespread brain connectivity: a high-density EEG study with implications for the classroom. Frontiers in Psychology, 14. doi.org/10.3389/fpsy...

4/6

2. Gardner, M. J., & Altman, D. G. (1986). Confidence intervals rather than P values: estimation rather than hypothesis testing. British Medical Journal , 292(6522), 746–750. doi.org/10.1136/bmj....

3/6

Scanning behaviour in ants: an interplay between random-rate processes and oscillators - Journal of ... At the start of a journey home or to a foraging site, ants often stop, interrupting their forward movement, turn on the spot a number of times, and fixate in different directions. These scanning bouts...

1. Deeti, S., Cheng, K., Graham, P., & Wystrach, A. (2023). Scanning behaviour in ants: an interplay between random-rate processes and oscillators. Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology, 209(4), 625–639. doi.org/10.1007/s003...

2/6

Lightning over a pile of scientific papers

Each week, we share research that tickled our brains at our #LightningJournalClub. Fascinating, intriguing, even outright infuriating - these papers got us buzzing. This is the Jan. 29, 2024 edition!

#ShowMeTheSource #Science #CollectiveBehavior #CollectiveIntelligence

1/6

The left side shows two pieces of filter paper with dried slime mold on it. The right side shows one of these pieces a few days later. The slime mold has restarted its biological activity and is now a giant, bright yellow cell.

The #blob has awaken!

The dried "snot" on the left spent 3 years in the drawer. A little bit of humidity and food turned it into the sprawling yellow goo on the right :-)

#Science 🧪 #SlimeMold #Myxomycetes

Petri dishes containing cultures of slime mold, Physarum polycephalum, in an incubator.

Will the #blob wake up? Answer on Monday.
#Science 🧪 #SlimeMold #Myxomycetes

Body Size Differences between Foraging and Intranidal Workers of the Monomorphic Ant Lasius niger The association between the division of labour and worker body size of ants is typical for species that maintain physical castes. Some studies showed that this phenomenon can be also observed in the a...

6. Okrutniak, M., Rom, B., Turza, F., & Grześ, I. M. (2020). Body Size Differences between Foraging and Intranidal Workers of the Monomorphic Ant Lasius niger. Insects, 11(7). doi.org/10.3390/inse...

7/7

5. Adamatzky, A. (2019). A brief history of liquid computers. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 374(1774), 20180372. doi.org/10.1098/rstb...

6/7

An experimental assessment of social tolerance and den ecology in a high-density octopus population ... Long held notions of the universally asocial octopus are being challenged due to the identification of high-density and interacting octopus populations in Australia, Indonesia, Japan and the deep sea....

4. O’Brien, D. A., Taylor, M. L., Masonjones, H. D., Boersch-Supan, P. H., & O’Shea, O. R. (2021). An experimental assessment of social tolerance and den ecology in a high-density octopus population. Marine Biology, 168(5), 61. doi.org/10.1007/s002...

5/7

Interactive robots for communication-care: a case-study in autism therapy The paper proposes possible use of interactive robots in the remedial practice for children with autism, who have difficulties mainly in interpersonal communication. For this purpose, we built a small...

3. Kozima, H., Nakagawa, C., & Yasuda, Y. (2005). Interactive robots for communication-care: a case-study in autism therapy. ROMAN 2005. IEEE International Workshop on Robot and Human Interactive Communication, 2005., 341–346. doi.org/10.1109/ROMA...

4/7

Evolution of self-organised division of labour driven by stigmergy in leaf-cutter ants - Scientific ... Scientific Reports - Evolution of self-organised division of labour driven by stigmergy in leaf-cutter ants

2. Di Pietro, V., Govoni, P., Chan, K. H., Oliveira, R. C., Wenseleers, T., & van den Berg, P. (2022). Evolution of self-organised division of labour driven by stigmergy in leaf-cutter ants. Scientific Reports, 12(1), 21971. doi.org/10.1038/s415...

3/7

replicAnt: a pipeline for generating annotated images of animals in complex environments using Unrea... Deep learning-based computer vision tools are transforming animal behavioural research; however, many challenges remain. Here, Plum et al. present replicAnt, a novel tool for generating synthetic...

1. Plum, F., Bulla, R., Beck, H. K., Imirzian, N., & Labonte, D. (2023). replicAnt: a pipeline for generating annotated images of animals in complex environments using Unreal Engine. Nature Communications, 14(1), 7195. doi.org/10.1038/s414...

2/7

Each week, we share research that tickled our brains at our #LightningJournalClub. Fascinating, intriguing, even outright infuriating - these papers got us buzzing. This is the Jan. 22, 2024 edition!

#ShowMeTheSource #Science #CollectiveBehavior #CollectiveIntelligence

1/7

The "Remote - Tunnels" extension in #vscode might be the feature that will make me move all my cross-platform #rstats development away from RStudio and toward Visual Studio Code. This thing works brilliantly (so far) and is so much easier to set up than a RStudio Server. Thoughts?

ROpenCVLite 4.90.0 is now available on CRAN. It brings the latest release of OpenCV (4.9.0) and more robustness to the installation process on Windows. However, please note that this update deprecates support for R < 4.0
#rstats #computervision #opensource

swarm-lab.github.io/ROpenCVLite/

Army ants forming hanging chains

Army ants use collective intelligence to build bridges. Robots could learn from them: www.npr.org/2023/11/21/1...

🧪 #ALife #neuroskyence #CollectiveIntelligence

Ants that build bridges? Isabella Muratore, our postdoc extraordinaire, explained to @npr.org All Things Considered the work on this topic she presented at the last @entsocamerica.bsky.social meeting. You can listen to the recording here: www.npr.org/2023/11/14/1...
🧪

Support me on Patreon: http://www.patreon.com/emilygraslieShop prints + Original artwork! http://www.emilygraslie.com/printsGot funding for a video? thebrain... 📣🦝 The Brain Scoop RELAUNCH!

Stop everything you are doing, the Brain Scoop is back!!! youtu.be/Z7oFZogr99s?...

Thanks!

Damnit, where was that position 11 years ago? ;-)