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 …

Although the pedigree-based inbreeding coefficient F predicts the expected proportion of an
individual's genome that is identical-by-descent (IBD), heterozygosity at genetic markers …

The fitness of immigrants and their descendants produced within recipient populations
fundamentally underpins the genetic and population dynamic consequences of immigration …

Understanding the evolutionary dynamics of inbreeding and inbreeding depression requires
unbiased estimation of inbreeding depression across diverse mating systems. However …

The forces driving extra-pair reproduction by socially monogamous females, and the
resulting genetic polyandry, remain unclear. A testable prediction of the hypothesis that extra …

The ability to secure food for offspring and withstand the cost of reproduction favors high-
quality mothers that overproduce the larger sex, typically sons, only if they will receive …

Quantifying sex‐specific additive genetic variance (VA) in fitness, and the cross‐sex genetic
correlation (rA), is prerequisite to predicting evolutionary dynamics and the magnitude of …

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 …

The ratio of males to females among an individual's offspring at birth (offspring sex ratio) has
long been of great interest to evolutionary biologists. The human offspring sex ratio is …

Extra-pair reproduction is widely hypothesized to allow females to avoid inbreeding with
related socially paired males. Consequently, numerous field studies have tested the key …