Visiting Scientist, Division of Global Collaborations and Research Talent Development, RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS)
Main: Project Associate Professor, Graduate School of Science, The University of Tokyo
Ryosuke Iritani
Ph.D.
- Research Fields
- Mathematical Biology, Evolution, Ecology
- Appointment History
- 2019/03/01 - 2023/03/31Research Scientist, RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS)
- 2023/04/01 - 2025/03/31Senior Research Scientist, RIKEN Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS)
- 2025/04/01 - 2026/03/31Senior Research Scientist, Division of Fundamental Mathematical Science, RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS)
- 2026/05/01 - Visiting Scientist, Division of Global Collaborations and Research Talent Development, RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS) Main: Project Associate Professor, Graduate School of Science, The University of Tokyo
Self-introduction
Hi, what’s up! I’m Ryosuke (Ryo) Iritani. I’m originally from Kobe and did my biology and math undergrad at Kyoto University in Japan. I started my Ph.D. with Yoh Iwasa at Kyushu University in 2011 and worked as a research fellow (DC1) from 2013, visiting Lausanne (Switzerland) and Montpellier (France) to improve my theoretical skills. I then received Ph.D. in 2016 and started my postdoc at the University of California, Berkeley (as a fellow at the University of Exeter, the UK).
I am broadly interested in the theory of ecology and evolution, and mathematics underpinning it. Specifically, I am passionate about (i) evolution of complex life cycles; (ii) cooperation among organisms; and (iii) developing and applying the ecologically driven theory in mathematical sciences.
I like soccer, typographical fonts, math, and living organisms (with a special passion for insects).
Related Events
Synthesizing the evolutionary invasion analysis for high-dimensional population dynamics
September 4 (Thu) 13:00 - 14:00, 2025 Seminar iTHEMS Biology Seminar
iTHEMS-TheoryCenter(KEK) Scientific Writing and DEI Workshop
June 24 (Tue) - 25 (Wed) 2025 Workshop
Effective size and dimension, in biology and beyond
January 30 (Thu) 16:00 - 17:00, 2025 Seminar iTHEMS Biology Seminar
RIKEN AIP-Suri-joshi Joint Seminar
January 29 (Sat) 15:00 - 16:40, 2022 External Event
Generalized Bernoulli process and computation of proportional areas for Venn diagram
December 8 (Wed) 16:00 - 18:00, 2021 Seminar iTHEMS Math Seminar
Kullback-Leibler divergence and stochastic dynamics
May 6 (Thu) 10:00 - 11:00, 2021 Seminar iTHEMS Biology Seminar
Information theory in ecology: Markov chain, Venn diagram, Kronecker (and Cartesian graph) products, and Tsallis entropy
January 20 (Wed) 13:00 - 14:00, 2021 Seminar Information Theory Seminar
Nara Women's University, Faculty of Science, Continuous Lecture Series: Forefront of Modern Science - Frontiers in Mathematics, Astronomy, Physics, Biology and Computation
October 2 (Fri) 16:20 - 17:50, 2020 Lecture
The hitch-hiker’s guide to the concept of adaptive dynamics
September 2 (Wed) 10:00 - 10:30, 2020 Seminar iTHEMS Biology Seminar
iTHEMS x academist Online open to the public "World of Mathematical Sciences"
April 18 (Sat) 10:00 - 17:00, 2020 Special Lecture
Related News
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Farewell message from Ryosuke Iritani
2026-03-31 Hot Topic
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Developing a framework for inferring spatial biodiversity: quantifying the "beta-diversity" patterns
2025-06-12 Press Release
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Toward Developing Unifying Theories of Biology, Mathematics, and Society - Ryosuke Iritani
2024-11-18 Researches & Researchers
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RIKEN NEWS: Unraveling the Puzzle of Complex Ecosystems with Mathematical Models
2023-06-12 Research News
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Ryosuke Iritani gave a scientific outreach talk at Mathcafe on May 14, 2023
2023-05-22 Hot Topic
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The paper co-authored by Dr. Ryosuke Iritani has been selected as "Editors' Choice" of OIKOS
2023-03-29 Award
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Behavioral Ecology of Plants: their sensory system, communication, memory, and response
2023-01-30 Book
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Ryosuke Iritani wrote an essay for The Big Issue Japan 445
2022-12-27 Hot Topic
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Ryosuke Iritani was interviewed by The Big Issue of Japan
2022-06-06 Hot Topic
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Common Laws of Evolution and Ecological Dynamics
2022-06-06 Press Release
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"RIKEN AIP-Suri-joshi Joint Seminar" was held on January 29, 2022
2022-02-09 Hot Topic
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SSH Seminar "When high-school mathematics is useful in biology" was held on February 4, 2022
2022-02-08 Hot Topic
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Evolutionary Ecology of Parasites
2022-02-02 Book
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Reading the World through the Window of Math
2021-12-21 Book
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A New Mechanism to Explain Multispecies Coexistence in Plants - Evolutionary Rescue Caused by the Evolution of Self-Fertilization before Flowering
2021-09-17 Press Release
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iTHEMS research activities and researchers were featured in "RIKEN 2021"
2021-07-27 Research News
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Mystery of Wasps That Produce Few Males Solved
2021-05-11 Press Release
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Biology and mathematics: What it would be like to be crazy about both
2021-03-02 Hot Topic
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Dr. Ryosuke Iritani and Dr. Takashi Okada received 15th Young Scientist Award of JSMB
2020-09-29 Award
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When adaptation promotes coexistence
2020-07-10 Press Release
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Dr. Ryosuke Iritani received Suzuki Prize of The Ecological Society of Japan
2020-03-24 Award
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Dr. Iritani receives the Best English Presentation Award
2019-03-26 Award
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Self-introduction: Ryosuke Iritani
2019-03-11 Person of the Week