Takuji Usui | 薄井拓路's Avatar

Takuji Usui | 薄井拓路

@usuitakuji

EEB Fellow at UofT. PhD with Angert Lab at UBC. Global change, Eco-evo dynamics, Species ranges, Coexistence, Thermal ecology 🦆🌱. 🏴󠁧󠁢󠁳󠁣󠁴󠁿🇯🇵 in 🇨🇦. he/him.

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01.09.2023
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Latest posts by Takuji Usui | 薄井拓路 @usuitakuji

Student Research Award <p>The ASN Student Research Awards support research by student members that advances the goals of the society: the conceptual unification of ecology, evolution, and behavior. Each award consists of a ...

Just a few days left to submit the ASN student research award (due March 13th)!!!! This is an AWESOME opportunity for students to get some grant writing experience!!! We LOVE reading your grants and giving feedback!!!!!!!!!!! Apply, Apply, Apply!!!!!!

www.amnat.org/announcement...

03.03.2026 14:38 👍 19 🔁 29 💬 0 📌 0
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In case you missed it: our review titled "Spatial structure: shaping the ecology and evolution of microbial communities" is out! 🚨

Let me hit you with some highlights on why spatial structure matters. (and why you should care!)

Sharing is appreciated 🙏 🧵👇

doi.org/10.1093/fems...

25.02.2026 13:06 👍 137 🔁 82 💬 3 📌 2
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Temperature variation and life history mediate nonlinearity in fluctuations of marine fish populations worldwide - Nature Ecology & Evolution A global analysis of marine fish populations involving 243 recruitment and 266 spawner time series across 143 species finds that nonlinear dynamics are widespread and that the degree of nonlinearity i...

New in @natecoevo.nature.com, we show that nonlinear dynamics like oscillations & chaos occur in 81% of marine fish populations worldwide. Nonlinearity was correlated with the magnitude of fluctuations & amplified by temperature variation & in fast-lived species. 🌍🌐

Link: doi.org/10.1038/s415...

09.02.2026 15:55 👍 17 🔁 7 💬 2 📌 1

Follow up to our work on eco-evolutionary dynamics of host parasite systems in complex landscapes up in Evolution @journal-evo.bsky.social. This work was done during Ruthvik's Erasmus M1 project @ruthvikpsi.bsky.social with me and @efronhofer.bsky.social. academic.oup.com/evolut/artic...

07.02.2026 05:33 👍 21 🔁 10 💬 0 📌 0

10 out of 10 bug

06.02.2026 17:02 👍 10 🔁 3 💬 0 📌 0

My annual "DO IT!" encouragement post!

Selfishly, my time on CSEE council was the highlight of my PhD, it opened doors and opportunities that research alone did not. And I think we accomplished some good things for the society! 🧪🌎

27.01.2026 21:29 👍 19 🔁 8 💬 0 📌 0
Photo of a large number of scarlet monkeyflower plants growing in southern California (photo by MC Moazed).

Photo of a large number of scarlet monkeyflower plants growing in southern California (photo by MC Moazed).

Excited to share the first two publications from our PERSIST (Predicting Evolutionary Rescue of a Species in Space and Time) project. Thanks to NSF-DEB for supporting this work! (1/3)

22.12.2025 18:13 👍 40 🔁 18 💬 2 📌 0

Incorporating realistic ecological interactions changes our understanding of which traits are optimal in different environments, including the temperature-size rule.

Awesome paper by David Anderson, outstanding former postdoc with me and Mary O'Connor.

17.12.2025 17:52 👍 29 🔁 15 💬 0 📌 0

Fabulous society. Join! And not just Canadians. The annual meeting is my favourite of all conferences and we love to have our non-Canadian friends join us.

16.12.2025 21:52 👍 7 🔁 6 💬 0 📌 1

Looking forward to the Modern Coexistence Theory workshop tomorrow.

Please repost :)

07.12.2025 21:54 👍 23 🔁 27 💬 0 📌 0
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Newly published in @globalchangebio.bsky.social, we look within seeds of historic herbarium specimens for changes in the prevalence of beneficial fungal symbionts in response to climate change drivers. onlinelibrary.wiley.com/doi/10.1111/...

30.10.2025 17:04 👍 5 🔁 4 💬 2 📌 0
Drawing of a researcher looking out thoughtfully at mountains, grasslands and intertidal study systems

Drawing of a researcher looking out thoughtfully at mountains, grasslands and intertidal study systems

New paper out today in Ecology Letters! In this synthesis we dive into the equilibrium assumption in ecology - why it's everywhere in ecological theory, the evidence for it in nature, when meeting the assumption is important, how to achieve it in empirical research, and more! tinyurl.com/yh6kyysm

03.11.2025 13:31 👍 103 🔁 40 💬 3 📌 3
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Signatures of local nitrogen adaptation in the Brachypodium distachyon root microbiome Plants associate with diverse microbiomes that impact their fitness, yet the contribution of the microbiome to plant adaptation is uncertain. As plant recruitment of its microbiome can be both highl...

My labmate @kevinricks.bsky.social and I decided to complete a side project during the last year of our doctorate programs, and I'm happy to say that it's finally been published in New Phytologist !! doi.org/10.1111/nph....

30.10.2025 14:13 👍 11 🔁 4 💬 1 📌 0

The deadline is one week away! Don't miss out on submitting your symposium and workshop proposals 🎉

27.10.2025 13:24 👍 1 🔁 1 💬 0 📌 0
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A universal thermal performance curve arises in biology and ecology | PNAS Temperature has strong impacts on all biological and ecological processes, and thermal performance curves (TPCs) have been employed recurrently to ...

A universal thermal performance curve arises in biology and ecology doi.org/10.1073/pnas...

25.10.2025 12:14 👍 37 🔁 11 💬 0 📌 0

Fun to synthesize some exciting future directions for spatiotemporal genomics in this Tansley perspective.

Check er out!

22.09.2025 13:03 👍 13 🔁 5 💬 0 📌 0
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Plasticity in climate change responses Recent research has shown that climate change can both induce and modulate the expression of plastic traits but our understanding of the role of phenotypic plasticity as an adaptive response to clima...

Plasticity in climate change responses - just published in Biological Reviews

What in the role of phenotypic plasticity as an adaptive response to climate change?

Looking at mechanisms from the subcellular to the community and ecosystem levels.

With Stollewerk, @davidboukal.bsky.social, et al.

03.08.2025 17:25 👍 44 🔁 20 💬 1 📌 1

Do you like to think about temporal niches and coexistence theory? Or perhaps you want to hear some really quirky natural history of marine insects & the moon? Or both? Read on: a mystery & its potential solution in two papers!

21.07.2025 05:44 👍 48 🔁 16 💬 1 📌 4
Too poor to science: How wealth determines who succeeds in STEM From student to researcher, a career in science can come with a high price tag. This Perspective explores how persistent financial barriers limit who can succeed in science, revealing how wealth shape...

"The myth of meritocracy in science collapses under the financial sacrifices expected at every career stage. From unpaid internships and self-funded conferences to underpaid positions, these hidden costs disproportionately exclude those without generational wealth, compounded by race and gender."

10.07.2025 13:00 👍 35 🔁 18 💬 0 📌 0

So excited to share our paper on facilitation thinking.
Facilitation Thinking for Coexistence Theory - James - 2025 - Ecology Letters - Wiley Online Library onlinelibrary.wiley.com/doi/10.1111/...

20.06.2025 05:45 👍 22 🔁 10 💬 0 📌 0
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maybe my favorite paper I've written, I have a synthesis out today early access in @asn-amnat.bsky.social today that attempts to answer a simple but slippery question: what is an elevational range? doi.org/10.1086/737130

11.06.2025 21:44 👍 118 🔁 43 💬 6 📌 2
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Macroecological patterns in experimental microbial communities Author summary Determining whether an empirical pattern can be manipulated is a crucial step towards building a predictive theory. Our study aimed to determine the extent that experimental manipulatio...

Macroecological patterns in experimental microbial communities, led by Will Shoemaker & Jacopo Grilli
journals.plos.org/ploscompbiol...

27.05.2025 18:23 👍 34 🔁 12 💬 0 📌 1

Preprint of our first manuscript from the PERSIST project (Predicting Evolutionary Rescue of a Species In Space and Time), with @lucasjalbano.bsky.social and many other co-authors not on BlueSky

26.05.2025 11:51 👍 26 🔁 11 💬 1 📌 0
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Limited evidence for range shift–driven extinction in mountain biota Mountain biodiversity reorganizes rapidly as species shift upslope to track temperatures. Pervasive species redistribution poses substantial threats to mountain ecosystems, a phenomenon sometimes desc...

really cool new paper showing species across the globe are NOT moving upslope any more than you'd expect based on a null model

www.science.org/doi/10.1126/...

15.05.2025 20:15 👍 14 🔁 5 💬 0 📌 0

A very nice and clean test of the meta-population theory for range limits!

13.05.2025 21:59 👍 3 🔁 0 💬 1 📌 0
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🗳️CSEE Election Voting is Now Open!🗳️
Voting runs from May 6–20. Candidate statements are available here: csee-scee.ca/elections/. All members with active memberships as of May 6 can vote.

How to Vote:
Check your inbox (and spam) for an email from ElectionBuddy with your voting link & instructions.

07.05.2025 17:00 👍 5 🔁 8 💬 1 📌 3
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Thanks to @idiv for funding and hosting our first working group meeting on range edge dynamics (sRED) @kemarshall.bsky.social @joeybernhardt.bsky.social @juancarvq.bsky.social @shaharchaikin.bsky.social @usuitakuji.bsky.social @emmamarjakangas.bsky.social @colingarroway.bsky.social

10.05.2025 12:49 👍 28 🔁 5 💬 2 📌 1
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Adaptation and gene flow are insufficient to rescue a montane plant under climate change Climate change increasingly drives local population dynamics, shifts geographic distributions, and threatens persistence. Gene flow and rapid adaptation could rescue declining populations yet are seld...

Even common plants with broad-scale distributions are going to feel the effects of climate change. We modeled plant responses using species distribution modeling and demographic surveys to find that B. stricta is at risk of decline. @science.org

www.science.org/doi/10.1126/...

01.05.2025 18:59 👍 30 🔁 15 💬 0 📌 1

Wow much congratulations to you too, Joey!! 🥳🎉🍾

29.04.2025 22:58 👍 1 🔁 0 💬 1 📌 0