P. T. Humphrey

Far From Home: Evolution of haploid and diploid populations reveals common, strong, and variable pleiotropic effects in non-home environments

The paper evolves haploid and diploid yeast populations in different environments and finds common, unpredictable pleiotropic effects of adaptive mutations in non-home environments.

Phenotypic and molecular evolution across 10,000 generations in laboratory budding yeast populations

This study tracks phenotypic and molecular evolution in 205 yeast populations over 10,000 generations, revealing patterns of declining adaptability, mutation accumulation, and genetic parallelism.

Competitive hierarchies, antibiosis, and the distribution of bacterial life history traits in a microbiome

The paper investigates competitive interactions among bacterial strains in a plant microbiome, finding that P. fluorescens outcompetes P. syringae through growth rate, lag time, and antibiotic production.

Insect herbivory reshapes a native leaf microbiome

This study shows insect herbivory increases bacterial abundance in leaf microbiomes and alters community composition, potentially influencing plant disease dynamics.

Habitat preference of an herbivore shapes the habitat distribution of its host plant

The paper investigates how herbivore habitat preference influences plant distribution, finding that herbivores prefer sunny habitats over shade plants, driving the plant's distribution into shaded areas.