Converging lines of inquiry from across the social and biological sciences target the adult
sex ratio (ASR; the proportion of males in the adult population) as a fundamental population …

Our understanding of migratory birds' year‐round ecology and evolution remains patchy
despite recent fundamental advances. Periodic reviews focus future research and inform …

Summary 1 Demographic data from both breeding and non‐breeding periods are needed to
manage populations of migratory birds, many of which are declining in abundance and are …

Behavioral Ecology of Tropical Birds, Second Edition provides the most updated and
comprehensive review on the evolution of behavior in tropical landbirds. The book reviews …

Life history theory predicts that parents should value their own survival over that of their
offspring in species with a higher probability of adult survival and fewer offspring. We report …

Life history theory attempts to explain why species differ in offspring number and quality,
growth rate, and parental effort. I show that unappreciated interactions of these traits in …

Viewing life–history evolution in birds based on an age–specific mortality framework can
explain broad life–history patterns, including the long incubation periods in southern …

A-has an eminent past (Moreau 1944; Lack 1948, 1954, 1968; Skutch 1949), because birds
played a critical role in the early development of life-history theory (Partridge and Harvey …

Estimation of demographic parameters is central to research questions in wildlife
management, conservation, and evolutionary ecology. I review the 7 major classes of mark …

1. Using data from a 20-year study of individually marked red-billed choughs, we examine
how reproductive performance varies with age in male and female breeders, and investigate …