Parents affect offspring fitness by propagule size and quality, selection of oviposition site,
quality of incubation, feeding of dependent young, and their defence against predators and …

Egg size is a widely-studied trait and yet the causes and consequences of variation in this
trait remain poorly understood. Egg size varies greatly within many avian species, with the …

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 …

This paper reviews the use of seabirds in fisheries management around the world, and
provides a comprehensive overview of the many factors that should be considered in order …

Summary 1 Understanding the interactions between different periods of the annual cycle in
migratory animals has been constrained by our inability to track individuals across seasons …

We experimentally increased the number of eggs laid by Lesser Black‐backed Gulls and
examined the relationship between egg number and egg quality. Egg quality was measured …

Food availability influences multiple stages of the breeding cycle of birds, and
supplementary feeding has helped in its understanding. Most supplementation studies have …

The fitness–related consequences of egg mass, independent of confounding influences
associated with parental quality, remain poorly understood for wild birds in general and for …

Androgenic hormones occur naturally in bird egg yolk and are known to enhance growth in
canary and gull chicks. Gil et al.(1999, Science, 286, 126–128) have recently proposed that …

Despite evidence that some individuals achieve both superior reproductive performance
and high survivorship, the factors underlying variation in individual quality are not well …