Human‐induced biological invasions are common worldwide and often have negative impacts on wildlife and human societies. Several studies have shown evidence for selection on invaders after introduction to the new range. However, selective processes already acting prior to introduction have been largely neglected. Here, we tested whether such early selection acts on known behaviour‐related gene variants in the yellow‐crowned bi...

While genetic diversity is hypothesized to be an important factor explaining invasion success, there is no consensus yet on how variation in source populations or demographic processes affects invasiveness. We used mitochondrial DNA haplotypic and microsatellite genotypic data to investigate levels of genetic variation and reconstruct the history of replicate invasions on three continents in a globally invasive bird, the monk...

The comparison between neutral genetic differentiation ( F ST ) and quantitative genetic differentiation ( Q ST ) is commonly used to test for signatures of selection in population divergence. However, there is an ongoing discussion about what F ST actually measures, even resulting in some alternative metrics to express neutral genetic differentiation. If there is a problem with F ST , this could have repercussions for its com...