Migration conveys an immense challenge, especially for juvenile birds coping with enduring
and risky journeys shortly after fledging. Accordingly, juveniles exhibit considerably lower …

Soaring migrant birds exploit columns of rising air (thermals) to cover large distances with
minimal energy. Using social information while locating thermals may benefit such birds, but …

Animal movement is fundamental for ecosystem functioning and species survival, yet the
effects of the anthropogenic footprint on animal movements have not been estimated across …

There have been numerous recent observations of changes in the behavior and dynamics
of migratory bird populations, but the plasticity of the migratory trait and our inability to track …

Human‐induced changes in the climate and environment that occur at an unprecedented
speed are challenging the existence of migratory species. Faced with these new challenges, …

During the past century a decline has been noted in European bird populations, both in large
species [1] and possibly also in songbirds [2]. Today the “Red List”(of endangered species) …

Although large parts of bird migration behaviour, such as timing, duration and direction of
migration, are controlled on a genetic basis, countless recent observations give evidence for a …

… In Chapter3, Anders Møller and Wolfgang Fiedler provide a general overview of the
biological databases suitable for studying the effects of climate change. In Chapter 4, Vladimir …

Quantifying movement and demographic events of free‐ranging animals is fundamental to
studying their ecology, evolution and conservation. Technological advances have led to an …

Annual migratory movements can range from a few tens to thousands of kilometers, creating
unique energetic requirements for each specific species and journey. Even within the same …