Abstract: This data set contains measurements of nitrogen (δ15N) stable isotope values of twelve individual amino acids from breast feathers of gentoo penguins (Pygoscelis papua) and chinstrap penguins (Pygoscelis antarctica) collected from museum archives between the 1930s and 2010s. Stable isotope analyses were conducted using a gas chromatograph coupled to a continuous flow stable isotope ratio mass spectrometer. The data set also includes trophic positions of penguins calculated from individual amino acid δ15N values. The data set indexes each individual penguin with species, collection institution, catalog number, sex, locality, latitude, longitude, year of sample collection, nitrogen isotope ratios, and calculated trophic position. Details of the data set and all relevant methods are provided in McMahon et al. 2020 Proc Natl Acad Sci DOI: 10.1073/pnas.1913093116
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
Antarctic Peninsula
funderName:NSF:GEO:OPP:Antarctic Organisms and Ecosystems awardNumber:1443386 awardTitle:Collaborative Research: Investigating Holocene Shifts in the Diets and Paleohistory of Antarctic Krill Predators
funderName:NSF:GEO:OPP:Antarctic Organisms and Ecosystems awardNumber:1443424 awardTitle:Collaborative Research: Investigating Holocene Shifts in the Diets and Paleohistory of Antarctic Krill Predators
funderName:NSF:GEO:OPP:Antarctic Organisms and Ecosystems awardNumber:1443585 awardTitle:Collaborative Research: Investigating Holocene Shifts in the Diets and Paleohistory of Antarctic Krill Predators
funderName:NSF:GEO:OPP:Antarctic Organisms and Ecosystems awardNumber:1826712 awardTitle:Collaborative Research: Investigating Holocene Shifts in the Diets and Paleohistory of Antarctic Krill Predators