Conservation efforts are most effective when we have complete demographic information for
a species of concern. Nevertheless, fundamental gaps in our knowledge of demography still …

For altricial young, fledging is an abrupt step into an unknown environment. Despite
increasing numbers of studies addressing the post‐fledging period, our current knowledge …

Avian migration is one of Earth's largest processes of biomass transport, involving billions of
birds. We estimated continental biomass flows of nocturnal avian migrants across the …

Williams' evolutionary theory of senescence based on antagonistic pleiotropy has become a
landmark in evolutionary biology, and more recently in biogerontology and evolutionary …

Early survival is highly variable and strongly influences observed population growth rates in
most vertebrate populations. One of the major potential drivers of survival variation among …

The survival probability of birds during the juvenile period, between the end of parental care
and adulthood, is highly variable and has a major effect on population dynamics and …

Phenotypic traits developed in one life‐history stage can carryover and affect survival in
subsequent stages. For songbirds, carryover effects from the pre‐to post‐fledging period …

For oviparous species such as birds, conditions experienced while in the egg can have long‐
lasting effects on the individual. The impact of subtle changes in incubation temperature on …

Migratory animals face severe time and energy constraints during their annual cycle. These
constraints may be exacerbated in young animals by conditions experienced during …

Causes of evolved differences in clutch size among songbird species remain debated. I
propose a new conceptual framework that integrates aspects of traditional life-history theory …