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USGS at The Wildlife Society: From sea-ice change to contaminants to predators and prey

g a natural longitudinal gradient across the western and central Aleutian Islands (Buldir, Kiska, Amchitka, Adak), and additional seabird species representing different foraging and migratory bird groups from Buldir Island to evaluate westward increases in contaminant concentrations. Their study results suggest non-point source input, point source input from former military installations, and bioaccumulation in the food chain. Mark Ricca will discuss these contaminants analyses and what they indicate regarding contaminants sources and the increases in contaminants in animals higher in the food chain. Mark Ricca, Session 40, Tuesday, Sep 26, 2006, 3:50 p.m. - 4:10 p.m.

Glacial retreat, human-bear conflicts, and adaptive management in Glacier Bay National Park and Preserve:

Glacial retreat over the past 200 years in Glacier Bay, Alaska, has created lush upland meadows along the shoreline that are desirable to both humans and bears (Ursus arctos and Ursus americanus). As the number of backcountry campers has increased over the past 30 years, so have the number of bear-human conflicts. In response to these conflicts, including a human fatality in 1980, two large areas of shoreline have been closed to camping since the 1980's. In the 1990's, park managers joined with USGS bear researchers to identify key research needed to determine bear habitat characteristics and activity patterns in Glacier Bay with the goal of ultimately minimizing bear-human conflict. Two research projects have subsequently been conducted including a risk assessment of campsites in Glacier Bay, and an assessment of bear habitat and activity in areas of management concern, which included the areas closed to camping. As bear research commenced, park managers made changes to educational content and safety trainings based on preliminary findings from the field. For example, bear safety messages now encourage people to look for signs of recent bear activity, keep control of the
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Contact: Catherine Puckett
cpuckett@usgs.gov
352-264-3532
United States Geological Survey
25-Sep-2006


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