Mutations spawn genetic variation which, in turn, fuels evolution. Hence, experimental
investigations into the rate and fitness effects of spontaneous mutations are central to the …

Mutation is the primary source of variation in any organism. Without it, natural selection
cannot operate and organisms cannot adapt to novel environments. Mutation is also …

Temperature drives performance and therefore adaptation; to interpret and understand
these, thermal performance curves (TPC) are used, often through meta‐analyses, revealing …

Range expansions and biological invasions are prime examples of transient processes that
are likely impacted by rapid evolutionary changes. As a spatial process, range expansions …

Senescence, an organismal performance decline with age, has historically been considered
a universal phenomenon by evolutionary biologists and zoologist. Yet, increasing fertility …

At species' range edges, individuals often face novel environmental conditions that may limit
range expansion until populations adapt. The potential to adapt depends on genetic …

Adaptation depends greatly on the distribution of mutation fitness effects (DMFE), but the
phenotypic expression of mutations is often environment dependent. The environments …

Abiotic stress is a major force of selection that organisms are constantly facing. While the
evolutionary effects of various stressors have been broadly studied, it is only more recently …

We performed a mutation accumulation (MA) experiment in the social amoeba Dictyostelium
discoideum to estimate the rate and distribution of effects of spontaneous mutations affecting …

Experimental evolution has provided novel insight into a wide array of biological processes.
Species in the genus Tetrahymena are proving to be a highly useful system for studying a …