The origin, distribution, and function of biological diversity are fundamental themes of
ecology and evolutionary biology. Research on birds has played a major role in the history …

Human impact is noticeable around the globe, indicating that a new era might have begun:
the Anthropocene. Continuing human activities, including land‐use changes, introduction of …

Abstract According to Haldane's Rule, the heterogametic sex will show the greatest fitness
reduction in a hybrid cross. In birds, where sex is determined by a ZW system, female …

Background Geese are among the most important poultry species in the world. The current
generally accepted hypothesis is that the European domestic geese originated from greylag …

Hybridization—the interbreeding of different species—plays an integral role in the evolution
of numerous bird species. However, it remains unclear how widespread this phenomenon is …

A current debate within population genomics surrounds the relevance of patterns of genomic
differentiation between closely related species for our understanding of adaptation and …

Background Domestic goose breeds are descended from either the Swan goose (Anser
cygnoides) or the Greylag goose (Anser anser), exhibiting variations in body size …

Speciation is fundamental for building and maintaining biodiversity. The formation of the
highly differentiated genomic regions between diverging taxa has been interpreted as a …

Understanding how gene flow influences adaptive divergence is important for predicting
adaptive responses. Theoretical studies suggest that when gene flow is high, clustering of …

Our ability to define the population status, migration routes and seasonal distribution of Bean
Geese Anser fabalis throughout the annual cycle in East Asia is severely compromised by …