This data package is not the most recent revision of a series.  (View Newest Revision)

Data Package Summary    View Full Metadata

  • Structural size measurements and isotopic signatures of foraging among adult male and female Adélie penguins (Pygoscelis adeliae) nesting along the Palmer Archipelago near Palmer Station, 2007-2009
  • Gorman, Kristen
    Palmer Station Antarctica LTER
  • 2014-03-14
  • Gorman, K. and Palmer Station Antarctica LTER. 2014. Structural size measurements and isotopic signatures of foraging among adult male and female Adélie penguins (Pygoscelis adeliae) nesting along the Palmer Archipelago near Palmer Station, 2007-2009 ver 1. Environmental Data Initiative. https://doi.org/10.6073/pasta/6b3098369c7716bf7c4879580e6216d0 (Accessed 2024-03-29).

  • Sexual segregation in vertebrate foraging niche is often associated with sexual size dimorphism (SSD), i.e., ecological sexual dimorphism. We examined ecological sexual dimorphism among sympatric nesting Pygoscelis penguins near Palmer Station, Antarctica, asking whether environmental variability in the form of winter sea ice is associated with differences in male and female pre-breeding foraging niche. Each season, study nests, where pairs of adults were present, were individually marked and chosen before the onset of egg-laying, and consistently monitored. When study nests were found at the one-egg stage, both adults were captured to obtain blood samples used for molecular sexing and stable isotope analyses, and measurements of structural size and body mass. At the time of capture, each adult penguin was quickly blood sampled (~1 ml) from the brachial vein. After handling, individuals at study nests were further monitored to ensure the pair reached clutch completion, i.e., two eggs. Molecular analyses were conducted at Simon Fraser University following standard PCR protocols, and stable isotope analyses were conducted at the Stable Isotope Facility at the University of California, Davis using an elemental analyzer interfaced with an isotope ratio mass spectrometer

  • Data Use Policy The data available here are intended for scholarly use by the research community, with the express understanding that data users will properly acknowledge the originating investigator. Use or reproduction of any material herein for any commercial purpose is prohibited without prior written permission from the responsible party. Data Acknowledgment Policy Data accessible in the CCE LTER data repository supported by the Division of Ocean Sciences, NSF Grants OCE-0417616 and OCE-10-26607. Data Availability Policy Our goal is to release the long-term datasets associated with core research within 2 years of collection. Data together with their metadata will be available for download from our website. Other datasets relating to site research are prioritized and released as support permits.
  • https://doi.org/10.6073/pasta/6b3098369c7716bf7c4879580e6216d0
  • Analyze this data package using:           

EDI is proud to be affiliated with the following organizations: DataCite logo DataONE logo ESIP logo re3data logo