Publications

View citations of publications by National Wildlife Health Center scientists since our founding in 1975. Access to full-text is provided where possible.

Wildlife Health Bulletins

Wildlife Health Bulletins are distributed to natural resource/conservation agencies to provide and promote information exchange about significant wildlife health threats.

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Wildlife Disease Case Definitions

Case definitions provide a standardized, science-based set of criteria for diagnosing disease and pathogens. This manual provides case definitions for selected diseases of importance to wildlife in Canada and the United States.

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Additional Resources

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January 1, 1991

Lead exposure in Canada geese of the eastern prairie population Lead exposure in Canada geese of the eastern prairie population

We monitored lead exposure in Eastern Prairie Population Canada geese during summer-winter, 1986-1987 and 1987-1988 at 5 areas. Blood lead concentrations in geese trapped during summer at Cape Churchill Manitoba were below levels indicative of recent lead exposure (0.18 ppm). Geese exposed to lead (≥0.18 ppm blood lead) increased to 7.6% at Oak Hammock Wildlife Management Area (WMA)...

Authors

S. DeStefano, C. J. Brand, D. H. Rusch, Daniel L. Finley, Murray M. Gillespie

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1991

Brain acetycholinesterase activity in botulism-intoxicated mallards Brain acetycholinesterase activity in botulism-intoxicated mallards

Brain acetylcholinesterase (AChE) activity in captive-reared mallards (Anas platyrhynchos) that died of botulism was compared with euthanized controls. AChE levels for both groups were within the range reported for normal mallards, and there was no significant difference in mean AChE activity between birds that ingested botulism toxin and died and those that did not.

Authors

Tonie E. Rocke, M.D. Samuel

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1991

Effects of lead shot ingestion on selected cells of the mallard immune system Effects of lead shot ingestion on selected cells of the mallard immune system

The immunologic effects of lead were measured in game-farm mallards (Anas platyrhynchos) that ingested lead shot while foraging naturally, mallards intubated with lead shot, and unexposed controls. Circulating white blood cells (WBC) declined significantly in male mallards exposed to lead by either natural ingestion or intubation, but not females. Spleen plaque-forming cell (SPFC) counts...

Authors

Tonie E. Rocke, M.D. Samuel

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1991

Concluding remarks: Disease ecology and the conservation of avian species Concluding remarks: Disease ecology and the conservation of avian species

No abstract available.

Authors

M. Friend, G. Wobeser

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1991

Disease prevention and control in endangered avian species: Special considerations and needs Disease prevention and control in endangered avian species: Special considerations and needs

No abstract available.

Authors

M. Friend, N. J. Thomas

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1991

Research center analyzes health problems of endangered species Research center analyzes health problems of endangered species

No abstract available.

Authors

R. Windingstad

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1991

Poisoning of Canada geese in Texas by parathion sprayed for control of Russian wheat aphid Poisoning of Canada geese in Texas by parathion sprayed for control of Russian wheat aphid

Approximately 200 Canada geese (Branta canadensis) died at a playa lake in the Texas Panhandle shortly after a winter wheat field in the basin adjacent to the lake was treated with parathion to control newly invading Russian wheat aphids (Diuraphis noxia). No evidence of infectious disease was diagnosed during necropsies of geese. Brain ChE activities were depressed up to 77% below...

Authors

Edward L. Flickinger, Gary Juenger, Thomas J. Roffe, Milton R. Smith, Roy J. Irwin

Ecosystems Mission Area, National Wildlife Health Center, Eastern Ecological Science Center

January 1, 1991

Introductory remarks: Disease ecology and the conservation of avian species Introductory remarks: Disease ecology and the conservation of avian species

No abstract available.

Authors

Milton Friend

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1991

Quarterly Wildlife Mortality Report Quarterly Wildlife Mortality Report

No abstract available.

Authors

G. Kidd

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1991

Quarterly Wildlife Mortality Report Quarterly Wildlife Mortality Report

No abstract available.

Authors

G. Kidd

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1991

Effects of resighting errors on capture-resight estimates for neck-banded Canada geese Effects of resighting errors on capture-resight estimates for neck-banded Canada geese

Biologists who study neck-banded Canada Geese (Branta canadensis) have used capture and resighting histories to estimate annual resighting rates, survival rates and the number of marked birds in the population. Resighting errors were associated with 9.4% (n = 155) of the birds from a sample of Canada Geese neckbanded in the Mississippi flyway, 1974-1987, and constituted 3.0% (n = 208) of...

Authors

Nondor T. Weiss, M.D. Samuel, D. H. Rusch, F. Dale Caswell

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1991

Diseases of whooping cranes seen during annual migration of the Rocky Mountain flock Diseases of whooping cranes seen during annual migration of the Rocky Mountain flock

Diagnosis and treatment of ill whooping cranes of the Rocky Mountain flock was provided by a zoological facility. Cases of avian cholera, lead poisoning and avian tuberculosis were encountered. The zoo efforts were an adjunct to the U.S. Fish and Wildlife Service, Whooping Crane Recovery Plan.

Authors

S. Bret Snyder, Michael J. Richard, Roderick C. Drewien, Nancy J. Thomas, John P. Thilsted

Ecosystems Mission Area, National Wildlife Health Center