There are multiple observations around the globe showing that in many avian species, both
the timing of migration and breeding have advanced, due to warmer springs. Here, we …

Timing is a crucial aspect for survival and reproduction in seasonal environments leading to
carefully scheduled annual programs of migration in many species. But what are the exact …

Physiological Adaptations for Breeding in Birds is the most current and comprehensive
account of research on avian reproduction. It develops two unique themes: the consideration …

Movement, dispersal, and migration on land, in the air, and in water, are pervading features
of animal life. They are performed by a huge variety of organisms, from the smallest …

The “paradox of the great speciators” has puzzled evolutionary biologists for over half a
century. A great speciator requires excellent dispersal propensity to explain its occurrence …

Individuals often considerably differ in the timing of their life-cycle events, with major
consequences for individual fitness, and, ultimately, for population dynamics. Phenological …

Background In diverse taxa, photoperiodic responses that cause seasonal physiological and
behavioural shifts are controlled by genes, including the vertebrate Clock orthologues, that …

Dissecting phenotypic variance in life history traits into its genetic and environmental
components is at the focus of evolutionary studies and of pivotal importance to identify the …

Recent studies exploring the molecular genetic basis for migratory variation in animals have
identified polymorphisms in two genes (CLOCK and ADCYAP1) that are linked to circadian …

Bird migration has long been a subject of fascination for humankind and is a behavior that is
both intricate and multifaceted. In recent years, advances in technology, particularly in the …