National Wildlife Health Center

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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 Fact Sheets

Wildlife Disease Fact Sheets

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Filter Total Items: 1,474
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Year Published: 1992

Brucellosis: a political disease

With the challenges confronting North America's elk herds today, a bacteria that causes a nonfatal disease in a few elk herds seems an unlikely addition to the list. Fragmentation of habitat, dwindling bull-cow ratios, grazing competition from livestock on public rangelands, or the crowding of favorite hunting spots all seem like far more urgent...

Smith, B.; Roffe, T.J.
Brucellosis: a political disease; 1992; Article; Journal; Bugle; Smith, B.; Roffe, T. J.

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Year Published: 1992

Case report: epithelial intracytoplasmic herpes viral inclusions associated with an outbreak of duck virus enteritis

Several muscovy ducks from a free-roaming flock of 65 muscovy and mallard ducks died over a 3-week period. Three muscovy ducks were necropsied. Gross and microscopic changes were compatible with duck virus enteritis, and the virus was isolated. In addition to intranuclear viral inclusion bodies in several tissues, intracytoplasmic inclusion bodies...

Barr, B.C.; Jessup, David A.; Docherty, Douglas E.; Lownestine, L.J.
Case report: epithelial intracytoplasmic herpes viral inclusions associated with an outbreak of duck virus enteritis; 1992; Article; Journal; Avian Diseases; Barr, B. C.; Jessup, D. A.; Docherty, Douglas E.; Lownestine, L. J.

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Year Published: 1992

Causes of mortality in common loons

Summarized are necropsy results from 222 carcasses of Common Loons (Gavia immer) submitted to the National Wildlife Health Research Center from 1976 through 1991.  The carcasses were from 18 states, and 10 or more birds each were from Minnesota, Florida, Virginia, Michigan, Wisconsin, Maine, and North Carolina.  Seventy-three (33%)...

Franson, J. Christian; Cliplef, David J.

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Year Published: 1992

Duck virus enteritis

Castro, A.E.; Heuschele, W.P.; Docherty, D.E.; Franson, J. C.
Duck virus enteritis; 1992; Book chapter; Book; Veterinary Diagnostic Virology: A Practitioner's Guide.; Docherty, D. E.; Franson, J. C.

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Year Published: 1992

Environmental influences on major waterfowl diseases

The decline of North American waterfowl resources since the 1960s is well-known to this audience and need not be detailed to establish that population numbers for several key waterfowl species are at or near their lowest levels since records have been kept. Loss of habitat is an accepted major cause for the decline of waterfowl numbers and the...

Friend, M.
Environmental influences on major waterfowl diseases; 1992; Article; Journal; Transactions of the North American Wildlife and Natural Resources Conference; Friend, M.

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Year Published: 1992

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...

Samuel, M.D.; Steinhorst, R.K.; Garton, E.O.; Unsworth, J.W.
Estimation of wildlife population ratios incorporating survey design and visibility bias; 1992; Article; Journal; Journal of Wildlife Management; Samuel, M. D.; Steinhorst, R. K.; Garton, E. O.; Unsworth, J. W.

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Year Published: 1992

Implanting radio transmitters in wintering canvasbacks

To conduct telemetry studies of wintering canvasbacks (Aythya valisineria) on Chesapeake Bay, we needed to devise a suitable method of radio transmitter attachment. We describe an aseptic, intra-abdominal surgical technique, using the inhalation anesthetic isoflurane, to implant 20-g radio transmitters in free-ranging canvasbacks. We evaluated the...

Olsen, G.H.; Dein, F.J.; Haramis, G.M.; Jorde, Dennis G.
Implanting radio transmitters in wintering canvasbacks; 1992; Article; Journal; Journal of Wildlife Management; Olsen, G. H.; Dein, F. J.; Haramis, G. M.; Jorde, D. G.

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Year Published: 1992

Lead exposure and recovery rates of black ducks banded in Tennessee

American black ducks (Anas rubripes) wintering in Tennessee during 1986 to 1988 were tested for exposure to lead. Twelve percent of the birds had blood lead concentrations exceeding 0.2 ppm. Significant differences in the prevalence of lead exposure were found for adults (14.4%) and juveniles (8.2%). Exposed birds had higher blood lead...

Samuel, Michael D.; Bowers, E. Frank; Franson, J. Christian
Lead exposure and recovery rates of black ducks banded in Tennessee; 1992; Article; Journal; Journal of Wildlife Diseases; Samuel, M. D.; Bowers, E. F.; Franson, J. C.

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Year Published: 1992

Lead poisoning of avian species other than waterfowl

No abstract available.

Locke, Louis N.; Friend, Milton

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Year Published: 1992

Polychlorinated biphenyl residues and egg mortality in double-crested cormorants from the Great Lakes

We evaluated the overall potency of polychlorinated biphenyl (PCB)-containing extracts from double-crested cormorant (Phalacrocorax auritis) eggs with an in vitro bioassay system, the H4IIE rat hepatoma cell bioassay. Results from the H4IIE bioassay were strongly correlated with the hatching success of eggs in the colonies, whereas conventional...

Tillitt, D.E.; Ankley, G.T.; Giesy, J.P.; Ludwig, J.P.; Kurita-Matsuba, H.; Weseloh, D. V.; Ross, P.S.; Bishop, C.A.; Sileo, L.; Stromborg, K. L.; Larson, J.; Kubiak, T.J.
Polychlorinated biphenyl residues and egg mortality in double-crested cormorants from the Great Lakes; 1992; Article; Journal; Environmental Toxicology and Chemistry; Tillitt, D. E.; Ankley, G. T.; Giesy, J. P.; Ludwig, J. P.; Kurita-Matsuba, H.; Weseloh, D. V.; Ross, P. S.; Bishop, C. A.; Sileo, L.; Stromborg, K. L.; Larson, J.; Kubiak, T. J.

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Year Published: 1992

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...

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

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Year Published: 1992

Quarterly Wildlife Mortality Report January 1992-March 1992

No abstract available. 

Kidd, G.
Quarterly Wildlife Mortality Report; 1992; Article; Journal; Supplement to the Journal of Wildlife Diseases; Kidd, G.