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 …

1. Life-history decisions are strongly affected by environmental conditions. In birds,
incubation is energetically expensive and affected significantly by ambient temperature. We …

Investment in one life-history stage can have delayed effects on subsequent life-history
stages within a single reproductive bout. We experimentally heated tree swallow …

Individual variation in life-history trade-offs can be caused by differences in quality and age.
We tested for individual variation in parental investment in incubating tree swallows …

Birds have colonized almost every terrestrial habitat on the planet-from the poles to the
tropics, and from deserts to high mountain tops. Ecological and Environmental Physiology of …

There is growing interest in latitudinal effects on animal behaviour and life history. One
recent focus is on birdsong, which is hypothesized to be more elaborated or complex in the …

Avian embryos depend on the incubating parent to provide a thermal environment suitable
for embryogenesis, but as the maintenance of optimal incubation temperatures is …

A major component of sex‐allocation theory, the Trivers–Willard model (TWM), posits that
sons and daughters are differentially affected by variation in the rearing environment. In …

In biparental species, conflict between the sexes is expected when optimal levels of parental
care differ between males and females. We studied food provisioning in house wrens …

It has long been recognized that mass loss during breeding could be adaptive (eg, by
ameliorating the costs of increased parental activity). However, many studies still commonly …