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Matina Donaldson-Matasci

@matinadonaldson

Associate Professor of Biology at Harvey Mudd College. Studies ants & bees in the lab, the field, and the alternate reality of mathematics.

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26.08.2023
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Latest posts by Matina Donaldson-Matasci @matinadonaldson

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What Vision Reveals About Intelligence A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

How does vision shape our understanding of the world? Research student Bonnie writes about the architecture of the brain & how it inspires #ComputerVision: allowing computers to not only identify & categorize objects, but also interact with the world. hmcbee.blogspot.com/2026/03/what... @hmc.edu

09.03.2026 16:52 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Ecology Underfoot A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

Here's the second post in my students' #NaturalHistory blog series! Anna writes about "Ecology Underfoot" -- the surprising plant diversity to be found in a tiny patch of seemingly bare ground: hmcbee.blogspot.com/2026/03/ecol... @hmc.edu

04.03.2026 20:23 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
A mug of tea held in front of a white sage plant. Photo by Taylor Baugh.

A mug of tea held in front of a white sage plant. Photo by Taylor Baugh.

If you've ever walked through a California native shrubland, you might have noticed how good you smell afterwards. Sagescrub is incredibly aromatic -- but does it make good tea? Read Taylor's latest student blog post to find out! hmcbee.blogspot.com/2026/02/smel...

24.02.2026 22:47 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Ant Maps? A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

What's *your* Ant Navigation style? When you're lost, do you make like an Argentine ant and follow the crowd, or like a desert ant and look for landmarks? Read more about the different ways ants find their way in Paul's latest student blog post: hmcbee.blogspot.com/2025/12/ant-... @hmc.edu

18.12.2025 21:03 πŸ‘ 6 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Picture of a snowman saying "Have a great winter break" with a pencil drawing of an "ant-snowman" next to it.

Picture of a snowman saying "Have a great winter break" with a pencil drawing of an "ant-snowman" next to it.

I always appreciate the first-year students' comments & drawings on the final exam, but *this* one especially 😍 🐜!

18.12.2025 02:34 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Antchitecture: The Building of Harvester Ant Nests A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

From the surface, ant nests don't look like much. But underground, there's *a lot* going on! Learn about the complex structure & construction of ant nests, and what we have to learn from it all, in Pranay's new blog post: "Antchitecture"! hmcbee.blogspot.com/2025/12/antc... @hmc.edu

15.12.2025 22:51 πŸ‘ 6 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Tripping on Ants A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

California harvester #ants have a powerful sting -- so powerful that Indigenous people of the region ingested hundreds of them to induce visions. Read more in Ananya's latest blog post: hmcbee.blogspot.com/2025/12/trip... (Don't try this at home!!) @hmc.edu

02.12.2025 16:27 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Hold Your Horses: Ants farm too? A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

What makes humans "special"? Well, it isn't farming... ants have been doing it a lot longer than we have! Read more about fungus farming ants in Diya's latest student blog post: hmcbee.blogspot.com/2025/11/hold... @hmc.edu

26.11.2025 00:29 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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The Ants of Harvey Mudd: Which Ones are You Seeing? A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

Students in my lab have been observing interactions b/w native and invasive ants in our local field station. First-year student Su writes about the different species they've encountered in the process, including our fave, the California harvester ant! hmcbee.blogspot.com/2025/11/the-... @hmc.edu

19.11.2025 17:50 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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We've seen our turtle ants, after being bitten, stung and thrown by twig ants, just walk away all nonchalant. What makes them so hard core? Read about our latest exploratory project in Lexie's new blog post: hmcbee.blogspot.com/2025/11/knig... @hmc.edu

17.11.2025 20:22 πŸ‘ 15 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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Never Gonna Give You Up: Twig Ant Mandibles A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

Want to learn about ant weaponry & wrestling moves? New undergrad student Phoebe interviewed collaborator Dr. Scott Powell to find out how the enemy species she's studying in the lab interact in the field. Read her blog post here: hmcbee.blogspot.com/2025/10/neve... #ants #wrestling @hmc.edu

20.10.2025 16:11 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Thesis Trailer for interspecific competition of Cephalotes varians and Pseudomyrmex gracilis
Thesis Trailer for interspecific competition of Cephalotes varians and Pseudomyrmex gracilis YouTube video by Marissa Douglas

Hey #ABS2025 are you excited to see some Ant Wrestling?? My undergrad Marissa Douglas made this fun trailer for her thesis presentation: youtu.be/MtBHG3XNVxY?... I'll be talking about it this afternoon at 4pm in Social Aggression.

11.07.2025 13:39 πŸ‘ 7 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Wrestling Ants, The Sequel! Why We Cannot Randomly Score Insect Aggression A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

Wanna read more about ant wrestling -- and learn how we make science replicable? First-year undergrad Hanna writes about her experience working in the lab this semester & what she learned about the importance of a detailed protocol w/ lots of examples hmcbee.blogspot.com/2025/05/wres... @hmc.edu

22.05.2025 20:25 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
β€œSay No to Weakening the Endangered Species Act” Endangered Fender's blue butterfly at a restoration site near Fern Ridge

β€œSay No to Weakening the Endangered Species Act” Endangered Fender's blue butterfly at a restoration site near Fern Ridge

Protecting habitat is perhaps THE most important conservation strategy. But a proposed change to the Endangered Species Act would stop doing so, allowing people & companies to destroy habitat that endangered species need to survive.
Join us in stopping this change ➑️ xerces.org/protect-the-esa

08.05.2025 21:50 πŸ‘ 82 πŸ” 52 πŸ’¬ 1 πŸ“Œ 6
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Wrestling Ants: How We Score Insect Aggression Like WWE Moves A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

"Have you ever watched a WWE wrestling match and wished you could see it at a fraction of the size? Ever wanted to see miniature body slams, tiny submission holds and even small aerial moves?" If so, read on in the latest student blog post by Lexie! hmcbee.blogspot.com/2025/05/wres... @hmc.edu #ants

12.05.2025 17:13 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Strong and weak environmental perturbations cause contrasting restructure of ant transportation networks | Proceedings of the Royal Society B: Biological Sciences Dynamic transportation networks are embedded in all levels of biological organization. Ever-growing anthropogenic disturbances and an increasingly variable climate highlight the importance of understa...

Work on the resilience of wood ant transport networks led by SandorPiross shows network dynamics that are highly effective in stable environments have limited capacity to cope with targeted disruption 2/2 @uoyopenres.bsky.social @matinadonaldson.bsky.social royalsocietypublishing.org/doi/10.1098/...

22.04.2025 13:20 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Floridian Ants: The true test of my patience A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

Meet the lab ants, part II! In this blog post, ChloΓ© introduces our three species (turtle ants, two kinds of twig ants) & the personality differences she's observed. Like me, she prefers turtle ants, but her reasons are different... hmcbee.blogspot.com/2024/12/flor... #ants @harveymudd.bsky.social

08.01.2025 19:39 πŸ‘ 6 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Up Close and Personal with the Ant Lab’s Current Residents! A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

Tavo joined my lab this semester because he loves insects, so he was super excited to learn how to use the lab's dissecting scope to get up close and personal with *live* turtle & twig ants 🐜🐜🐜. Read his blog post, w/ lots of pics: hmcbee.blogspot.com/2024/12/up-c... #ants @harveymudd.bsky.social

20.12.2024 17:53 πŸ‘ 7 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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When Hugs Meet Survival: The Science Behind Fire Ant Rafts A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

The Red Imported Fire Ant is a major invasive pest across much of the US, but it also accomplishes some really cool engineering feats. Read TJ's latest student blog post about fire ant rafts, which they use to survive floods: hmcbee.blogspot.com/2024/12/when... @harveymudd.bsky.social #ants

16.12.2024 17:03 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Ant-agonists: The Line Between Betrayal and Cooperation A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

The prisoner's dilemma is a classic game that emphasizes conflict & shows how hard cooperation can be. In the latest student blog post, Julianne explains how red fire ant queens get around this problem using a green beard: hmcbee.blogspot.com/2024/12/ant-... @harveymudd.bsky.social #ants #gametheory

13.12.2024 22:47 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
drawing of a sleeping ant by Diya

drawing of a sleeping ant by Diya

Ever wonder: do ants sleep? In the latest student blog post, Diya writes about ants' sleeping habits -- and what college students have to learn from them! hmcbee.blogspot.com/2024/11/an-a... #ants @harveymudd.bsky.social

22.11.2024 16:38 πŸ‘ 7 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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If you missed Dr. Sue Chan’s poster on cucurbit pollen collection and use by squash #bees (Xenoglossa pruinosa) at #EntSoc24, feel free to check out the @jpollecol.bsky.social open access paper instead: doi.org/10.26786/192... @entsocamerica.bsky.social

11.11.2024 17:25 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Want to be my colleague? There are two tenure track Assistant Prof positions opening up at my university - month of 1st consideration is Jan 2025 πŸ˜„

One for Freshwater Fisheries Biology and the other for Animal Ecology! 😊

jobs.missouristate.edu/postings/78080
jobs.missouristate.edu/postings/78118

05.11.2024 20:58 πŸ‘ 13 πŸ” 28 πŸ’¬ 1 πŸ“Œ 1

Two Lichtenberg Lab student presentations at #EntSoc24 on Monday! At 9 in 129A, Avery Pearson is talking about how ranch management alters plant visitation networks. At 11:42 in 132A, Marie MuΓ±iz is talking about bees learning from lady beetles.

11.11.2024 05:58 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

From Day 1 of my Experimental Ecology class, Chan's been focused on 🌱(and avoiding πŸ•·οΈ). But in this new student blog post, he discovers that to really understand plants, you need to learn about other organisms too -- like πŸ„ & even (gasp)🐞! hmcbee.blogspot.com/2024/04/yerb... @harveymudd.bsky.social

12.04.2024 19:07 πŸ‘ 5 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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What a Waste: My Time Scouting for Coyotes (Canis latrans) A blog about social insect behavior, especially ants & honeybees, including field ecology, computer vision, and mathematical and simulation models.

In the third natural history blog post from my ecology class, Marissa writes about her seemingly fruitless search for coyotes, and how much she has learned about them from, well, their πŸ’©. hmcbee.blogspot.com/2024/03/what... @harveymudd.bsky.social #iTeachBio

21.03.2024 22:16 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Β IUSSI-NAS Spring Student Awards Β» IUSSI-NAS

Calling all grad students in N. America studying #ants, #bees, #wasps or #termites! We're accepting applications for IUSSI-NAS Spring Research Awards, plus nominations for Best Student Paper on behavior/evolution in social arthropods. For more info: iussi.cyberbee.net/2024/03/iuss...

13.03.2024 21:10 πŸ‘ 2 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
Image of bright blue scrub jay flying in front of green vegetation. Photo by Arman Khasru.

Image of bright blue scrub jay flying in front of green vegetation. Photo by Arman Khasru.

Here's the second student blog post about keeping a natural history notebook! This week, Josie writes about how she started out *looking* for birds -- but found that *listening* (along w/ Merlin Bird ID app) was more fruitful! hmcbee.blogspot.com/2024/03/the-... @harveymudd.bsky.social #iTeachBio

05.03.2024 23:11 πŸ‘ 9 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Let me know if you want to look at any of my prompts, happy to share!

04.03.2024 22:41 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I've done it for many years and always had good student buy in, but I also have the luxury of a small upper-division elective, so students are generally excited about the class

29.02.2024 18:58 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0