The twenty-first century has witnessed an explosion in research on animal migration, in
large part due to a technological revolution in tracking and remote-sensing technologies …

Mechanisms governing the migratory decisions of birds have long fascinated ecologists and
sparked considerable debate. Identifying factors responsible for variation in migration …

Partial migration, in which migrant and resident members of a species spend part of the
annual cycle in the same habitat, is a widely-occurring strategy among animal species …

Avian migration is a widespread, complex behavior that has long fascinated both scientists
and the general public. Nonetheless, we have not identified the genetic and environmental …

Extreme cold events, which have become more frequent, can revert the direction of long-
term responses to climate change. In 2021, record snowstorms swept the United States …

Partial migration, where a portion of the population migrates between winter and summer
(breeding) areas and the rest remain year‐round resident, is a common phenomenon …

Migratory shorebirds show highly organized seasonal cycles in physiological and
morphological traits (body mass and composition, plumage, hormone levels, etc.), which in …

Given increasing evidence that climate change affects the annual cycles of birds, it is
important to understand the mechanisms underlying individual migration strategies and …

A key issue in evolutionary biology is whether selection acting at levels higher than the
individual can cause evolutionary change. If it can, then conceptual and empirical studies …

During the past centuries, researchers have been studying animal movements using a large
variety of methods, ranging from marking individuals to applying advanced biologging …