To better understand how fluctuations in prey abundance may impact seabird reproductive
success, we studied short-term changes in prey populations and their effect on prey selection …

We investigated the relative roles of bottom-up and top-down factors in limiting productivity
of an upper trophic level marine predator. Our primary working hypothesis was that the …

Food availability comprises a complex interaction of factors that integrates abundance,
taxonomic composition, accessibility, and quality of the prey base. The relationship between food …

Aim Anthropogenic activities alter and constrain the structure of marine ecosystems with
implications for wide‐ranging marine vertebrates. In spite of the environmental importance of …

Density‐dependent competition for food resources influences both foraging ecology and
reproduction in a variety of animals. The relationship between colony size, local prey depletion, …

Avian mortality events are common following large‐scale oil spills. However, the sublethal
effects of oil on birds exposed to light external oiling are not clearly understood. We found that …

The black-capped petrel Pterodroma hasitata is an endangered seabird with fewer than 2000
breeding pairs restricted to a few breeding sites in Haiti and the Dominican Republic. To …

The term ‘seabird’ is generally applied to avian species that forage in the marine environment
over open water. Seabirds typically nest in colonies and are long-lived species with low …

Variability in forage fish abundance strongly affects seabird behavior and reproductive success,
although details of this relationship are unclear. During 1997 and 1998, we measured (1…

Understanding how both quality and quantity of prey affect the population dynamics of marine
predators is a crucial step toward predicting the effects of environmental perturbations on …