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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 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, 2009

Identification of CD3+ T lymphocytes in the green turtle Chelonia mydas Identification of CD3+ T lymphocytes in the green turtle Chelonia mydas

To understand the role of the immune system with respect to disease in reptiles, there is the need to develop tools to assess the host's immune response. An important tool is the development of molecular markers to identify immune cells, and these are limited for reptiles. We developed a technique for the cryopreservation of peripheral blood mononuclear cells and showed that a...

Authors

F.A. Munoz, S. Estrada-Parra, A. Romero-Rojas, Thierry M. Work, E. Gonzalez-Ballesteros, I. Estrada-Garcia

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2009

Experimental infection of Hawai'i 'Amakihi (hemignathus virens) with West Nile virus and competence of a co-occurring vector, culex quinquefasciatus: potential impacts on endemic Hawaiian avifauna. Experimental infection of Hawai'i 'Amakihi (hemignathus virens) with West Nile virus and competence of a co-occurring vector, culex quinquefasciatus: potential impacts on endemic Hawaiian avifauna.

Introduced mosquito-borne avian disease is a major limiting factor in the recovery and restoration of native Hawaiian forest birds. Annual epizootics of avian pox (Avipoxvirus) and avian malaria (Plasmodium relictum) likely led to the extinction of some species and continue to impact populations of susceptible Hawaiian honeycreepers (Drepanidinae). The introduction of a novel pathogen...

Authors

Dennis A. LaPointe, Erik K. Hofmeister, C. T. Atkinson, R.E. Porter, Robert J. Dusek

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2009

Prevalence of West Nile virus in migratory birds during spring and fall migration Prevalence of West Nile virus in migratory birds during spring and fall migration

To investigate the role of migratory birds in the dissemination of West Nile virus (WNV), we measured the prevalence of infectious WNV and specific WNV neutralizing antibodies in birds, principally Passeriformes, during spring and fall migrations in the Atlantic and Mississippi flyways from 2001-2003. Blood samples were obtained from 13,403 birds, representing 133 species. Specific WNV

Authors

Robert J. Dusek, R. G. McLean, L.D. Kramer, S. R. Ubico, A.P. Dupuis, G.D. Ebel, S.C. Guptill

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2009

Parasites of the mink frog (Rana septentrionalis) from Minnesota, U.S.A. Parasites of the mink frog (Rana septentrionalis) from Minnesota, U.S.A.

Twenty-two mink frogs, Rana septentrionalis, collected from two locations in Minnesota, United States, were examined for helminth and protozoan blood parasites in July 1999. A total of 16 parasite taxa were recovered including 5 larval digenean trematodes, 7 adult digenean trematodes, 3 nematodes, and 1 Trypanosoma species. Infracommunities were dominated by the digeneans in terms of...

Authors

Anna M. Schotthoefer, M. G. Bolek, Rebecca A. Cole, Val R. Beasley

Ecosystems Mission Area, National Wildlife Health Center

December 31, 2008

Confirming field assessments and measuring disease impacts Confirming field assessments and measuring disease impacts

No abstract available.

Authors

Thierry M. Work, Cheryl M. Woodley, L. Raymundo

Ecosystems Mission Area, National Wildlife Health Center

December 31, 2008

Coral and crustose coralline algae disease on the reefs of American Samoa Coral and crustose coralline algae disease on the reefs of American Samoa

Surveys for lesions in corals were conducted at seven sites around Tutuila in June 2004 and January 2005. The objectives of the study were to document the distribution and prevalence of disease in the major genera of corals and crustose coralline algae, systematically describe gross and microscopic morphology of lesions in reef corals and determine whether there are seasonal differences...

Authors

G. Aeby, Thierry M. Work, D. Fenner, Eva DiDonato

Ecosystems Mission Area, National Wildlife Health Center

December 31, 2008

A coral disease handbook: Guidelines for assessment, monitoring, and management A coral disease handbook: Guidelines for assessment, monitoring, and management

No abstract available.

Authors

L. Raymundo, Thierry M. Work, A.W. Bruckner, B. Willis

Ecosystems Mission Area, National Wildlife Health Center

December 12, 2008

Amidostomum and Epomidiostomum Amidostomum and Epomidiostomum

No abstract available.

Authors

Alan M. Fedynich, Nancy J. Thomas

Ecosystems Mission Area, National Wildlife Health Center

November 6, 2008

Protecting Black-Footed Ferrets and Prairie Dogs against sylvatic plague Protecting Black-Footed Ferrets and Prairie Dogs against sylvatic plague

Scientists at the USGS National Wildlife Health Center (NWHC), in collaboration with colleagues at other federal agencies and the University of Wisconsin, are developing and testing vaccines that can be used to protect black-footed ferrets and prairie dogs against plague. The black-footed ferret is commonly regarded as the most endangered mammal in North America, and sylvatic plague is a...

Authors

Tonie E. Rocke

Ecosystems Mission Area, National Wildlife Health Center

September 2, 2008

Mortality of ducklings of the black-bellied whistling duck (Dendrocygna autumnalis) during their premier swim in a hypersaline lake in south Texas Mortality of ducklings of the black-bellied whistling duck (Dendrocygna autumnalis) during their premier swim in a hypersaline lake in south Texas

Adult black-bellied whistling ducks (Dendrocygna autumnalis) were observed leaving islands with recently hatched young in a South Texas hypersaline lake during summer 2003. We counted 216 ducklings from 20 broods attempting to make their first swim to the mainland, presumably heading for suitable rearing habitat. Of these, 144 (67%) either died in the water or on the salt-encrusted...

Authors

D. S. Stolley, Samuel T. Edmonds, Carol U. Meteyer

Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, National Wildlife Health Center

July 1, 2008