John M. Pearce, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 42
Goose Research
The USGS Alaska Science Center has had a focus on addressing science questions related to geese in Alaska for decades. Information on these species is critical because all are important resources for subsistence and sport hunters in the state and outside of Alaska where these birds spend the winter. The large majority of goose populations in Alaska breed on national wildlife refuges (managed by...
Wildlife Disease and Environmental Health in Alaska
Environmental health is defined by connections between the physical environment, ecological health, and human health. Current research within the U.S. Geological Survey (USGS) recognizes the importance of this integrated research philosophy, which includes study of disease and pollutants as they pertain to both wildlife and humans. Due to its key geographic location and significant wildlife...
Dabbling and Diving Duck Research
Dabbling and diving ducks, such as mallards, pintails and scaup, are widespread species throughout North America. Additionally, their migratory flyways pass through Asia and North America overlap in Alaska. Population trends of these species are closely tracked through aerial surveys by management agencies. Results from these and other surveys are then used to formulate management actions to...
Swan Research
USGS research on swans in Alaska has focused on pathogens, contaminants, and demographic rates in each of the different breeding areas of Alaska. The vastly different migration patterns of swans in Alaska means that there are multiple factors on the wintering grounds and during migration that may influence population size and trends.
Q&A: The Role of USGS Ecosystems Science in Alaska
The USGS is the science arm of the Department of the Interior (DOI) with a mission to provide timely and impartial science information to decision-makers, industry, and others. Topics of USGS research and monitoring in Alaska include Ecosystems, Energy and Minerals, Geology, Water Resources, and Natural Hazards. At the Ecosystems Office of the USGS Alaska Science Center, research and monitoring...
Q&A: USGS Ecosystems Science Provides Information on Subsistence and Hunter-Harvested Food Resources in Alaska
The USGS is the science arm of the Department of the Interior with a mission to provide timely and impartial science information to decision-makers, industry, tribal entities and others. In Alaska, subsistence and hunter-harvested foods are kitchen table issues for the public. The annual subsistence harvest per rural resident is 295 pounds of wild food. USGS science is responsive to subsistence...
Science and Products
Filter Total Items: 42
Goose Research
The USGS Alaska Science Center has had a focus on addressing science questions related to geese in Alaska for decades. Information on these species is critical because all are important resources for subsistence and sport hunters in the state and outside of Alaska where these birds spend the winter. The large majority of goose populations in Alaska breed on national wildlife refuges (managed by...
Wildlife Disease and Environmental Health in Alaska
Environmental health is defined by connections between the physical environment, ecological health, and human health. Current research within the U.S. Geological Survey (USGS) recognizes the importance of this integrated research philosophy, which includes study of disease and pollutants as they pertain to both wildlife and humans. Due to its key geographic location and significant wildlife...
Dabbling and Diving Duck Research
Dabbling and diving ducks, such as mallards, pintails and scaup, are widespread species throughout North America. Additionally, their migratory flyways pass through Asia and North America overlap in Alaska. Population trends of these species are closely tracked through aerial surveys by management agencies. Results from these and other surveys are then used to formulate management actions to...
Swan Research
USGS research on swans in Alaska has focused on pathogens, contaminants, and demographic rates in each of the different breeding areas of Alaska. The vastly different migration patterns of swans in Alaska means that there are multiple factors on the wintering grounds and during migration that may influence population size and trends.
Q&A: The Role of USGS Ecosystems Science in Alaska
The USGS is the science arm of the Department of the Interior (DOI) with a mission to provide timely and impartial science information to decision-makers, industry, and others. Topics of USGS research and monitoring in Alaska include Ecosystems, Energy and Minerals, Geology, Water Resources, and Natural Hazards. At the Ecosystems Office of the USGS Alaska Science Center, research and monitoring...
Q&A: USGS Ecosystems Science Provides Information on Subsistence and Hunter-Harvested Food Resources in Alaska
The USGS is the science arm of the Department of the Interior with a mission to provide timely and impartial science information to decision-makers, industry, tribal entities and others. In Alaska, subsistence and hunter-harvested foods are kitchen table issues for the public. The annual subsistence harvest per rural resident is 295 pounds of wild food. USGS science is responsive to subsistence...