Oskar Hallatschek

This study shows that genetic drift strength evolves over 50,000 generations in E. coli populations, with one population showing significantly stronger drift due to increased stochasticity.

The paper develops a method to infer directional migration rates from ancient DNA data using time-dependent F2 statistics, revealing an ancient pan-European migration network.

The paper tests the assumption of constant fitness effects in microbial populations and finds frequency-dependent effects are common, with negative frequency dependence and non-transitive fitness outcomes.

The paper shows that microbial populations can self-organize into segregated subpopulations in microcavities through interactions with surface features, maintaining diversity despite competition.

The paper shows that asynchronous abundance fluctuations can cause large genotype frequency changes in microbial populations, distinct from genetic drift.