Bonus: these methods preserve the stability properties of evolutionary equilibria as well. The projection method preserves Fisher's reproductive value (though only to the first order of selection).
Matrix calculus makes biology so easy!
Key result 2: low-dimensionalize the system. You can arbitrarily simplify the class-structure, which is simply a projection onto a reduced dimensional space. Meanwhile, this is mathematically identical to separating the timescales (i.e., quasi-equilibrium approximation).
Key result 1: determinant is great. The invasion condition R_0>1 is immensely simplified in a scalar form: -det(I–G)>0, where G is the next-generation matrix, and R_0=(spectral radius of G).
*dynamics 🥹
New preprint out with Troy Day!
www.biorxiv.org/content/10.6...
We unify numerous methodologies of adaptive dynamocs into a single framework we term “structural evolutionary invasion analysis.” If you have a class structure in your evolutionary model, consider applying this method!
Really amazing to see this out! Thanks to such dynamic researchers!
Thanks to @ryosukeiritani.bsky.social and iTHEMS @RIKEN for hosting us while we were working on this manuscript. 🙏🏽🇯🇵❤️🇬🇧
Final version just published of our review on the ecological and evolutionary consequences of cooperation www.journals.uchicago.edu/doi/10.1086/... @ryosukeiritani.bsky.social @annadewar.bsky.social @asgriffin.bsky.social @lauriebelch.bsky.social
@asn-amnat.bsky.social
After reviewing nearly 200 applications from prospective grad students and postdocs over the past few months for a couple different 🧪⚒️ postings, here are some tips, at least as they apply to North American positions. I hope they help future applicants. Share with your networks. 🧵
As you know, Hiragino Mincho is kept updating. But I realized the latest version looks quite different from the previous one. Now pretty much resembles Haranoaji Mincho (which is also a nice font).
A paper critiquing post-publication peer review has numerous made-up references, including a @nature.com article falsely attributed to our Ivan Oransky.
link.springer.com/article/10.1...
The evolutionary and ecological consequences of cooperation
-in American Naturalist by @stuwest.bsky.social, @annadewar.bsky.social, @ryosukeiritani.bsky.social, Laurence Belcher, and @asgriffin.bsky.social
www.journals.uchicago.edu/doi/abs/10.1...
香害で苦しんでいるひとたちがたくさんいることや、原因に身近にある柔軟剤などが影響していることがもっと知られて欲しい
わたしも洗剤や柔軟剤は無香料に変えました。比較的安価で手に入りやすいのはサラヤ、シャボン玉、ミヨシあたり。
香害は誰もが当事者。個人の問題じゃなくて、社会の問題だと思う
小中10%、「香害」で体調不良
消費者団体などが対策要望:東京新聞デジタル
www.tokyo-np.co.jp/article/429816
入国の検疫手続きや、各地のサービスなどを見ると妥当かなと思いました。日本も頑張れよと。
#PlasticsTreaty
Plastics "recycling" is largely bullshit & has been for >50 years
NO "last chance" for human, climate, biodiversity & ocean-harming plastics—REGULATE plastic production
figure showing nine data points (each for a distinct publisher) in a graph where Y-axis is our open science index and X-axis is academia friendliness (=proportion of published journals co-owned by an academic entity); strong positive relationship
Non-profit publishers (PLoS, Oxford, Cambridge) and publishers partnering a lot with academia (Wiley) are much more committed to open science than the others - MDPI being the worst by large. (4/5)
TREEより出たばかりの記事から。
「Global North（北半球の先進国）の研究者、特に資金が豊富な研究室の研究者は科学の最先端を開拓しているとみなされるが、Global South（南半球の新興国や途上国）の研究者は事例研究の実施、ロジスティクスの支援、データ提供者とみなされることが多い 。 GS 研究者として自身の経験から、GS の GN 科学者が主導する研究には GS 研究者の参加が含まれることが多いが、共著や共同リーダーシップの手段としての彼らの貢献が不当に認められていないことを知っています。」
www.sciencedirect.com/science/arti...
Thank you to everyone attending the "Writing and DEI Workshop" at RIKENS, organized by @ryosukeiritani.bsky.social. Gender equality in STEM is a global issue and we need to share our experiences and learn from one another. Thank you for sharing your stories and enthusiasm! 🙏 and @ITHEms, @JSPS 🇯🇵❤️
Group Photo
Discussion in groups
1/3 I was just lucky enough to get to do a couple of sessions on scientific writing in a DEI & Writing Workshop at Riken, Tokyo. Huge thank you to @ryosukeiritani.bsky.social for organising such an open and supportive workshop, and all the attendees for being so engaged and interactive.
New papers!
- Beta-diversity doi.org/10.1002/ecog.07737
- Cultural dynamics doi.org/10.1016/j.evolhumbehav.2025.106693
- Sex allocation & coexistence doi.org/10.1002/oik.11133
w/ students:
- Phytoplankton doi.org/10.1101/2025.06.03.657605
- Parasitoid lifehistory doi.org/10.1101/2025.02.22.639661
