Polar Oceans Research Group
Supporting Stations: ARSV Laurence M. Gould, Palmer Station
Research Locations: West Antarctic Peninsula
The core, long-term data associated with these Long Term Ecological Research (LTER) studies are derived primarily from local populations distributed over approximately 50 square kilometers near Palmer Station. At-sea surveys of abundance and distribution of seabirds over an area of approximately 80,000 square kilometers provide a larger-scale context for these studies. Spanning three decades, this data collection allows researchers to address a broad suite of ecological issues, including interactions between climate migration and community structure, the effects of landscape geomorphology on biological populations, the mechanics of source-sink population dynamics and the establishing of basic conceptual and empirical links between marine and terrestrial ecology.
Field Season Overview:
Based at Palmer Station from October to April, field team members will use Zodiacs to make day trips and possible overnights within the local boating area. Team members will concentrate on censusing and mapping seabird colonies, obtaining indices of reproductive success, determining diets and foraging ranges, and examining chick growth and energetics. In the lab, researchers will process GIS and telemetry data and analyze diet samples. During LTER’s annual cruise aboard the LMG, the “birders” group will establish a field camp of several days duration on Avian Island to census and map Adélie Penguin colonies, obtain diet samples and instrument birds with satellite transmitters and dive-depth recorders. Onboard the vessel they will conduct seabird observations from the bridge. If the conditions and logistics allow, a field party may disembark at stops between Anvers Island and Marguerite Bay to conduct penguin diet sampling.
Deploying Team Members:
Bill Fraser (PI)