Migratory birds regularly perform impressive long-distance flights, which are timed relative to
the anticipated environmental resources at destination areas that can be several thousand …

Despite its consequences for ecological processes and population dynamics, intra‐specific
variability is frequently overlooked in animal movement studies. Consequently, the …

In an era of climate change, understanding the genetic and physiological mechanisms
underlying flexibility in phenology and life history has gained greater importance. These …

Reproductive allochrony presents a potential barrier to gene flow and is common in
seasonally sympatric migratory and sedentary birds. Mechanisms mediating reproductive …

Avian long-distance migration requires refined programming to orchestrate the birds'
movements on annual temporal and continental spatial scales. Programming is particularly …

Divergent adaptation to new ecological opportunities can be an important factor initiating
speciation. However, as niches are filled during adaptive radiations, trait divergence driving …

To accommodate a migratory life history, migrants express a greater number of physiological
and behavioral stages per annum than residents and are thus considered to have higher …

All organisms must time their life cycles appropriately and organize life history stages into
temporal sequences that enhance fitness in a changing environment. The endocrine system …

Studies of Zugunruhe–the 'migratory restlessness' behaviour of captive birds–have been
integral to our understanding of animal migration, revealing an inherited propensity to …

Geographic variations in reproductive traits are important for evolutionary biology, but often
difficult to investigate because of the need for a large-scale survey and the ephemeral …