Endogenous programs that regulate annual cycles have been shown for many taxa,
including protists, arthropods, fish, mammals and birds. In migration biology, these programs …

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 …

Billions of nocturnally migrating birds move through increasingly photopolluted skies, relying
on cues for navigation and orientation that artificial light at night (ALAN) can impair …

In 2007, the first miniature light-level geolocators were deployed on small landbirds,
revolutionizing the study of migration. In this paper, we review studies that have used …

The populations of migratory bird species that breed in Europe and overwinter in sub-
Saharan Africa are declining considerably faster than those of nonmigratory resident …

Many species migrate long distances annually between their breeding and wintering areas.
Although global change affects both ranges, impact assessments have generally focused on …

The wide range of wildlife tracking and surveillance technologies (radio and satellite
tracking, cameras, and audio) that are being deployed in conservation have important …

Long-distance migratory organisms are under strong selection to migrate quickly. Stopovers
demand more time than flying and are used by individuals to refuel during migration, but the …

Migratory species can experience limiting factors at different locations and during different
periods of their annual cycle. In migratory birds, these factors may even occur in different …

Climate change has caused a clear and univocal trend towards advancement in spring
phenology. Changes in autumn phenology are much more diverse, with advancement …