R. W. Ness

Does urbanization lead to parallel demographic shifts across the world in a cosmopolitan plant?

This study examines the demographic effects of urbanization on white clover populations globally, finding increased gene flow and no reduction in genetic diversity in urban areas.

Salt stress alters the spectrum of de novo mutation available to selection during experimental adaptation of Chlamydomonas reinhardtii

This study examines how salt stress affects mutation rates and patterns in Chlamydomonas reinhardtii during adaptation, finding increased indel mutations and clustering under selection.

The distribution of fitness effects of spontaneous mutations in Chlamydomonas reinhardtii inferred using frequency changes under experimental evolution

The paper infers the distribution of fitness effects of mutations in Chlamydomonas reinhardtii by analyzing frequency changes under experimental evolution and finds a leptokurtic distribution with equal positive and negative effects.

Competition for access to mates predicts female-specific ornamentation and polyandry

The paper examines how competition for mates influences female ornamentation and polyandry in dance flies, finding that higher female ornamentation correlates with female-biased sex ratios and increased polyandry.

Predicting the strength of urban-rural clines in a Mendelian polymorphism along a latitudinal gradient

The paper examines urban-rural clines in a Mendelian trait of white clover across cities, finding that winter conditions influence HCN frequency changes, with snow reducing selection pressure in colder cities.

Consequences of recombination for the evolution of the mating type locus in Chlamydomonas reinhardtii

The paper examines recombination's role in the evolution of the mating type locus in Chlamydomonas reinhardtii, finding that gene conversion reduces differentiation and prevents degeneration.

The genomic landscape of recombination rate variation in Chlamydomonas reinhardtii reveals effects of linked selection

The paper infers recombination rate variation in Chlamydomonas reinhardtii using LD patterns, finding hotspots, GC-content correlations, and evidence of linked selection.

Modern spandrels: The roles of genetic drift, gene flow and natural selection in the formation of parallel clines

The paper uses simulations to show that genetic drift can create phenotypic clines in urban environments, mimicking adaptive changes when traits have non-additive genetic bases.

The recombination landscape in wild house mice inferred using population genomic data

This study constructs a recombination map for M. m. castaneus and finds conservation of recombination rate variation with M. m. domesticus, along with a positive correlation between recombination rate and genetic diversity.