Nestling growth and survival of marine birds are influenced by multiple factors. Oceanic
conditions influence food availability and energy value of the diet and affect nestling …

Parents might use signals of need or of quality to decide food provisioning among their
offspring, while the use of one or another signal might depend on food availability. Begging …

Egg laying is one of the most important phases in a female bird's breeding cycle. Its cost is
high because eggs contain all the resources needed for the development of an embryo …

Rationale Food provisioning is considered one of the main traits affecting offspring fitness.
Differences in food provisioning between sexes, particularly in dimorphic species, could …

In birds, possible explanations for a bias in brood sex ratio include differential cost of rearing
nestlings of different sexes, and different parental fitness returns related to offspring sex. We …

Brood reduction is a within-brood partial mortality due to sibling rivalry and has been
observed in a large number of bird species from diverse taxa. Here, I summarize several …

La etapa de crecimiento posnatal es clave en el ciclo de vida de los individuos ya que la
variación en las trayectorias de crecimiento y los fenotipos juveniles resultantes pueden …

Molecular studies have shown that, although most avian species are socially monogamous,
they can exhibit different reproductive strategies, such as extra-pair paternity (EPP) and …

Sex-ratio is an important demographic parameter, however, the literature surrounding bird
and mammal sex-ratio is incredibly inconsistent. Some bird and mammal species provide …

Rationale: Food provisioning is considered one of the main traits affecting offspring fitness.
Differences in food provisioning between sexes, particularly in dimorphic species, could …