Data from: Age-related variation in non-breeding foraging behaviour and carry-over effects on fitness in an extremely long-lived bird ...

• Main Authors: Clay, Thomas A., Pearmain, Elizabeth J., McGill, Rona A.R., Manica, Andrea, Phillips, Richard A., McGill, Rona A. R.
• Format: Dataset
• Language: English
• Published: Dryad 2018
• Subjects: activity patterns; life history theory; sexual segregation; Diomedea exulans; wandering albatross; 2008-2010; Wandering Albatross
• Online Access: https://dx.doi.org/10.5061/dryad.cr266nb; https://datadryad.org/stash/dataset/doi:10.5061/dryad.cr266nb

1. Senescence has been widely documented in wild vertebrate populations, yet the proximate drivers of age-related declines in breeding success, including allocation trade-offs and links with foraging performance, are poorly understood. For long-lived, migratory species, the non-breeding period represents a critical time for investment in self-maintenance and restoration of body condition, which in many species is linked to fitness. However, the relationships between age, non-breeding foraging behaviour and fitness remain largely unexplored. 2. We performed a cross-sectional study, investigating age-related variation in the foraging activity, distribution and diet of an extremely long-lived seabird, the wandering albatross Diomedea exulans during the non-breeding period, and its links with subsequent reproductive performance. 3. We tracked the distributions of 82 adults aged 8 – 33 years with geolocator-immersion loggers and found an age-related decline in the number of landings (a proxy of foraging effort) ... : GLSImmersion+Isotopes_SummaryAverage values of carbon and nitrogen isotopes in body feathers and activity metrics from geolocator-immersion loggers for each individual albatross. Demographic information also included: age, sex, and previous and next breeding outcome.Clayetal2018_Activity_Isotopes.xlsxGLSLocationsFiltered locations from geolocator-immersion loggers including information on the age and sex of each bird.Clayetal2018_Locations.xlsx ...