Data from: Paternal but not maternal age influences early-life performance of offspring in a long-lived seabird

Variability in demographic traits between individuals within populations
has profound implications for both evolutionary processes and population
dynamics. Parental effects as a source of non-genetic inheritance are
important processes to consider to understand the causes of individual
variation. In iteroparous species, parental age is known to influence
strongly reproductive success and offspring quality, but consequences on
offspring fitness component after independence are much less studied.
Based on a 37 years longitudinal monitoring of a long-lived seabird, the
wandering albatross, we investigate delayed effects of parental age on
offspring fitness components. We provide evidence that parental age
influences offspring performance beyond the age of independence. By
distinguishing maternal and paternal age effects, we demonstrate that
paternal age, but not maternal age, impacts negatively post-fledging
offspring performance.