Genetic and ecological drivers of molt in a migratory bird
- Biology, Environmental SciencebioRxiv
Integrative analysis suggests that molting is in part regulated by genes linked to feather development and structure and that genetic variation in these genes is associated with seasonal variation in precipitation and aridity.
Urbanization levels are associated with the start of the dawn chorus in vermilion flycatchers in Colombia
- Environmental Science
It is discussed that, for suboscines, another urban-related factor (ambient temperature) may be a key factor driving the onset of dawn chorus, including the start of the dawn chorus in birds.
High levels of natal philopatry and no difference in reproductive success between philopatric and non-philopatric songbirds breeding in a native forests of east-central Argentina
Rapid expansion and diversification into new niche space by fluvicoline flycatchers
- Environmental Science, Biology
It is provided evidence that a shift in foraging behaviour allowed the fluvicoline New World flycatchers to rapidly expand in a wide range of tropical and subtropical habitats in South America, and that four main clades expanded into and specialized to distinct habitats and climates.