Abrupt recent shift in delta 13C and delta 15N values in Adelie penguin eggshell in Antarctica.

ABSTRACT: Stable isotope values of carbon (delta13C) and nitrogen (delta15N) in blood, feathers, eggshell, and bone have been used in seabird studies since the 1980s, providing a valuable source of information on diet, foraging patterns, and migratory behavior in these birds. These techniques can also be applied to fossil material when preservation of bone and other tissues is sufficient. Excavations of abandoned Adélie penguin (Pygoscelis adeliae) colonies in Antarctica often provide well preserved remains of bone, feathers, and eggshell dating from hundreds to thousands of years B.P. Herein we present an approximately 38,000-year time series of delta13C and delta15N values of Adélie penguin eggshell from abandoned colonies located in three major regions of Antarctica. Results indicate an abrupt sh

SUBMITTER: Emslie SD 

PROVIDER: S-EPMC1913849 | biostudies-literature | 2007 Jul

REPOSITORIES: biostudies-literature