Tootfinder

my phone has a “memes” folder
for years, that folder has had exactly one image
this is that one image.

This https://arxiv.org/abs/2402.19388 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

A minimal model of pan-immunity maintenance by horizontal gene transfer in the ecological dynamics of bacteria and phages
Bacteria and phages have been in an ongoing arms race for billions of years. To resist phages bacteria have evolved numerous defense systems, which nevertheless are still overcome by counter-defense mechanisms of specific phages. These defense/counter-defense systems are a major element of microbial genetic diversity and have been demonstrated to propagate between strains by Horizontal Gene Transfer (HGT). It has been proposed that the totality of defense systems found in microbial communities …

Neutral theory of cooperators
Jordi Pi\~nero, Artemy Kolchinsky, Sidney Redner, Ricard Sol\'e
https://arxiv.org/abs/2506.09737 https://

Neutral theory of cooperators
Mutualistic interactions are widespread in nature, from plant communities and microbiomes to human organizations. Along with competition for resources, cooperative interactions shape biodiversity and contribute to the robustness of complex ecosystems. We present a stochastic neutral theory of cooperator species. Our model shares with the classic neutral theory of biodiversity the assumption that all species are equivalent, but crucially differs in requiring cooperation between species for repli…