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

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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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October 1, 1992

Estimation of wildlife population ratios incorporating survey design and visibility bias Estimation of wildlife population ratios incorporating survey design and visibility bias

Age and sex ratio statistics are often a key component of the evaluation and management of wildlife populations. These statistics are determined from counts of animals that are commonly plagued by errors associated with either survey design or visibility bias. We present age and sex ratio estimators that incorporate both these sources of error and include the typical situation that...

Authors

Michael D. Samuel, R. Kirk Steinhorst, Edward O. Garton, James W. Unsworth

Ecosystems Mission Area, National Wildlife Health Center

February 28, 1992

Quarterly Wildlife Mortality Report April 1992- June1992 Quarterly Wildlife Mortality Report April 1992- June1992

No abstract available.

Authors

G. Kidd

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1992

Influence of disease on a population model of mid-continent mallards Influence of disease on a population model of mid-continent mallards

No abstract available.

Authors

Michael D. Samuel

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1992

Prevalence of lead exposure among age and sex cohorts of Canada geese Prevalence of lead exposure among age and sex cohorts of Canada geese

We examined the prevalence of lead exposure from ingestion of waste lead shot among age and sex cohorts of Canada geese (Branta canadensis) on the breeding, migration, and wintering grounds of the Eastern Prairie Population. Blood samples from 6963 geese were assayed for lead concentration by atomic absorption spectrophotometry. On the breeding grounds, no goslings and

Authors

S. DeStefano, C. J. Brand, D. H. Rusch

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1992

Lead poisoning of avian species other than waterfowl Lead poisoning of avian species other than waterfowl

No abstract available.

Authors

Louis N. Locke, Milton Friend

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1992

Tuberculosis: Will it infect wild elk? Tuberculosis: Will it infect wild elk?

Tuberculosis! Just the name conjures up images of a devastating, chronic, debilitating disease. And so it is in both humans and animals. Tuberculosis (TB) is not known to be present to any significant degree in the free-ranging elk herds of North America. But increasing reports of TB in deer species-including elk-on game ranches prompt grave concern.

Authors

T.J. Roffe, B. Smith

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1992

Quarterly Wildlife Mortality Report October 1991- December 1991 Quarterly Wildlife Mortality Report October 1991- December 1991

No abstract available.

Authors

G. Kidd

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1992

The National Wildlife Health Research: A Program for Wildlife Health in the United States The National Wildlife Health Research: A Program for Wildlife Health in the United States

No abstract available.

Authors

C. J. Brand

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1992

A stochastic population model of mid-continental mallards A stochastic population model of mid-continental mallards

No abstract available.

Authors

Rolf R. Koford, J.R. Sauer, Douglas H. Johnson, J.D. Nichols, M.D. Samuel

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1992

Implanting radio transmitters in wintering canvasbacks Implanting radio transmitters in wintering canvasbacks

To conduct telemetry studies of wintering canvasbacks (Aythya valisineria) on Chesapeake Bay [Maryland, USA], we needed to devise a suitable method of radio transmitter attachment. We describe as aseptic, intraabdominal surgical technique, using the inhalation anesthetic isoflurane, to implant 20-g radio transmitters in free-ranging canvasbacks. We evaluated the technique over 3 winters...

Authors

Glenn H. Olsen, F. Joshua Dein, G. Michael Haramis, Dennis G. Jorde

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

January 1, 1992

Duck virus enteritis Duck virus enteritis

No abstract available.

Authors

D. E. Docherty, J. C. Franson

Ecosystems Mission Area, National Wildlife Health Center

January 1, 1992

Control of avian influenza: Philosophy and perspectives on behalf of migratory birds Control of avian influenza: Philosophy and perspectives on behalf of migratory birds

Aquatic birds are considered the primary reservoir for influenza A viruses (Nettles et al., 1987). However, there is little concern about avian influenza among conservation agencies responsible for the welfare of those species. IN contrast, the poultry industry has great concern about avian influenza and view aquatic birds as a source for infection of poultry flocks. In some instances

Authors

Milton Friend

Ecosystems Mission Area, National Wildlife Health Center