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

Spatial and temporal fluctuations in resource availability have led to the evolution of varied
migration patterns. In order to appropriately time movements in relation to resources …

Light at night (LAN) negatively impacts the behaviour and physiology; however, very little is
known about molecular correlates of LAN-induced effects in diurnal animals. Here, we …

Simple Summary Circadian clocks are evolutionarily adaptive internal clocks that regulate
cycles of activity, behavior, and physiological processes. In this study, we used the circadian …

The transition to a migratory state involves coordinated changes in physiology and
behaviour. In species with regular, predictable (obligate) migrations, increasing day length …

Atmospheric variability can impact biological populations by triggering facultative migrations,
but the stability of these atmosphere-biosphere connections may be vulnerable to climate …

Facultative migrations are observed across vertebrate taxa, include irruptive and nomadic
movements, and occur in response to ephemeral and unpredictably variable resources …

Background Many birds species range over vast geographic regions and migrate seasonally
between their breeding and overwintering sites. Deciding when to depart for migration is …

The final stage of migration, when animals terminate migratory movements and transition to
a more sedentary state, remains the least understood phase of migration. Whereas migrants …

Highlights•We investigated how cues are integrated in facultative migratory decisions.•Pine
siskins integrated social and food cues in an additive manner.•Temperature and food cues …