Cooperative Ecosystem Studies Unit, North Atlantic Coast CESU

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The U.S. Geological Survey (USGS), Alaska Science Center (ASC) is offering a funding opportunity to a CESU partner for research to support an evaluation of how changes to foraging behavior may be influencing contaminant exposure of polar bears in the southern Beaufort Sea. Specifically, the objective is to use adipose tissue samples to estimate polar bear diets and quantify exposure to polycyclic aromatic hydrocarbons. The southern Beaufort Sea subpopulation of polar bears has experienced sea ice loss leading to an increasing trend of polar bears spending time on land during summer and possibly increased divergent foraging strategies with differential exposure to contaminants. A characterization of dietary influence on exposure may reveal whether changing behavior has the potential to mediate declines in polar bear health.

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