Waterfowl population biology, factors affecting reproductive performance, evolutionary determinants of life history strategies, and survival rate estimation.
Professional Experience
1993 - Present Research Wildlife Biologist, USGS, Alaska Science Center, Anchorage, Alaska
1987 - 1993 Graduate Research Associate, University of Alaska, Fairbanks, Fairbanks, Alaska
1985 - 1987 Biological Technician, University of Alaska, Fairbanks, Fairbanks, Alaska
Education and Certifications
Ph.D. 1993 University of Alaska Fairbanks, Fairbanks, AK Biology
B.S. 1986 University of Alaska Fairbanks, Fairbanks, AK Wildlife Biology
Affiliations and Memberships*
The Wildlife Society
Wilson Ornithological Society
Cooper Ornithological Society
Association of Field Ornithologists
American Ornithologists Union
Science and Products
Tracking Data for Long-tailed Ducks (Clangula hyemalis)
Available here are tracking data of long-tailed duck, a species of seaduck that breeds throughout the circumpolar Arctic and spends the winter in coastal areas of northern and mid latitudes. These data were collected to determine range-wide migratory routes, migratory timing, and stopover habitats of this species.
Tracking Data for Black Scoter (Melanitta americana)
Available here are tracking data of Black Scoter, a duck species that breeds throughout higher latitudes of Alaska and Canada and winters along coastal areas of North America. These data were collected to better understand the timing and patterns of migratory movements between breeding and wintering areas.
Spatial and Temporal Maps of Population Change of Waterbirds on Alaska's North Slope
A main objective of the USGS Changing Arctic Research Initiative is to quantify and provide projections of the responses of wildlife species and their habitats to ecosystem change in the Arctic. The following project provides information for Department of Interior agencies, industry, and other stakeholders related to this objective.
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...
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...
Avian Influenza Research
Since 2006, the USGS Alaska Science Center has been part of the State and Federal interagency team for the detection and response to highly pathogenic (HPAI) viruses in North America. Avian influenza or "bird flu" is a viral disease that primarily infects domestic poultry and wild birds. Avian influenza viruses are naturally occurring in wild birds such as ducks, geese, swans, and gulls. These...
Science and Products
- Science
Tracking Data for Long-tailed Ducks (Clangula hyemalis)
Available here are tracking data of long-tailed duck, a species of seaduck that breeds throughout the circumpolar Arctic and spends the winter in coastal areas of northern and mid latitudes. These data were collected to determine range-wide migratory routes, migratory timing, and stopover habitats of this species.Tracking Data for Black Scoter (Melanitta americana)
Available here are tracking data of Black Scoter, a duck species that breeds throughout higher latitudes of Alaska and Canada and winters along coastal areas of North America. These data were collected to better understand the timing and patterns of migratory movements between breeding and wintering areas.Spatial and Temporal Maps of Population Change of Waterbirds on Alaska's North Slope
A main objective of the USGS Changing Arctic Research Initiative is to quantify and provide projections of the responses of wildlife species and their habitats to ecosystem change in the Arctic. The following project provides information for Department of Interior agencies, industry, and other stakeholders related to this objective.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...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...Avian Influenza Research
Since 2006, the USGS Alaska Science Center has been part of the State and Federal interagency team for the detection and response to highly pathogenic (HPAI) viruses in North America. Avian influenza or "bird flu" is a viral disease that primarily infects domestic poultry and wild birds. Avian influenza viruses are naturally occurring in wild birds such as ducks, geese, swans, and gulls. These... - Data
- Publications
- News
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government