Yellow-Billed Loons are Exposed to Mercury on their Wintering Grounds
Detailed Description
Yellow-billed loons are exposed to mercury on their wintering grounds in Asia before migrating to Alaska for breeding.
Sources/Usage
Public Domain.
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Satellite Tracking of Birds in Alaska Points to Distant Sources of Lead and Mercury Exposure
U.S. Geological Survey (USGS) scientists measured lead in blood from tundra swans that nest in Alaska and then followed the migration of these birds using satellite telemetry. Levels of lead in blood were higher in adults than young swans,suggesting exposure to lead occurs on wintering areas and/or during migration, rather than on the summer breeding grounds in Alaska. The lowest blood levels were...
Related
Satellite Tracking of Birds in Alaska Points to Distant Sources of Lead and Mercury Exposure
U.S. Geological Survey (USGS) scientists measured lead in blood from tundra swans that nest in Alaska and then followed the migration of these birds using satellite telemetry. Levels of lead in blood were higher in adults than young swans,suggesting exposure to lead occurs on wintering areas and/or during migration, rather than on the summer breeding grounds in Alaska. The lowest blood levels were...