Genetic variation, which is generated by mutation, recombination and gene flow, can reduce
the mean fitness of a population, both now and in the future. This 'genetic load'has been …

Invasive species that successfully establish, persist, and expand within an area of
introduction, in spite of demographic bottlenecks that reduce their genetic diversity …

Animal and plant species around the world are being challenged by the deleterious effects
of inbreeding, loss of genetic diversity, and maladaptation due to widespread habitat …

Genetic rescue has now been attempted in several threatened species, but the contribution
of genetics per se to any increase in population health can be hard to identify. Rescue is …

Evolutionary biologists have long trained their sights on adaptation, focusing on the power of
natural selection to produce relative fitness advantages while often ignoring changes in …

Decades of theoretical work on the evolution of adaptive prezygotic isolation have led to an
interesting finding—namely that stable partial reproductive isolation is a relatively common …

Cross‐fertilisation predominates in eukaryotes, but shifts to self‐fertilisation are common and
ecologically and evolutionarily important. Reproductive assurance under outcross gamete …

Darwin spent years investigating the effects of self-fertilization, concluding that “nature
abhors perpetual self-fertilization.” Given that selection purges inbred populations of strongly …

Genetic rescue can reduce the extinction risk of inbred populations, but it has the poorly
understood risk of 'genetic swamping'—the replacement of the distinctive variation of the …

As one of only two surviving groups of ancient jawless vertebrates, lampreys are of enduring
evolutionary interest. Study of lamprey biology, for example, continues to provide invaluable …