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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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January 1, 2001

Quantitative analysis of herpes virus sequences from normal tissue and fibropapillomas of marine turtles with real-time PCR Quantitative analysis of herpes virus sequences from normal tissue and fibropapillomas of marine turtles with real-time PCR

Quantitative real-time PCR has been used to measure fibropapilloma-associated turtle herpesvirus (FPTHV) pol DNA loads in fibropapillomas, fibromas, and uninvolved tissues of green, loggerhead, and olive ridley turtles from Hawaii, Florida, Costa Rica, Australia, Mexico, and the West Indies. The viral DNA loads from tumors obtained from terminal animals were relatively homogenous (range...

Authors

S.L. Quackenbush, R.N. Casey, R.J. Murcek, T.A. Paul, Thierry M. Work, C.J. Limpus, A. Chaves, L. duToit, J.V. Perez, A.A. Aguirre, T.R. Spraker, J.A. Horrocks, L.A. Vermeer, G.S. Balazs, J.W. Casey

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2001

Diagnostic histological findings in Yosemite toads (Bufo canorus) from die-off in the 1970s Diagnostic histological findings in Yosemite toads (Bufo canorus) from die-off in the 1970s

Twelve adult and 25 larval Yosemite toad (Bufo canorus) specimens from the eastern Sierra Nevada of California were examined histologically for evidence of infectious, toxicological, and degenerative diseases. The preserved toads were selected from 21 that had been salvaged or collected during a die-off in 1976-1979 that immediately preceded a population decline. Causes of death of four...

Authors

D. Earl Green, Cynthia Kagarise Sherman

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2001

Book review: Ecological Indicators for the Nation, National Research Council, 2000 Book review: Ecological Indicators for the Nation, National Research Council, 2000

No abstract available.

Authors

James P. Bennett

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2001

Spontaneous neoplasia in amphibia Spontaneous neoplasia in amphibia

No abstract available.

Authors

David Earl Green, J.C. Harshbarger

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2001

Pleurochrysis pseudoroscoffensis (Prymnesiophyceae) blooms on the surface of the Salton Sea, California Pleurochrysis pseudoroscoffensis (Prymnesiophyceae) blooms on the surface of the Salton Sea, California

Dense populations of the coccolithophore Pleurochrysis pseudoroscoffensis were found in surface films at several locations around the Salton Sea in February–August, 1999. An unidentified coccolithophorid was also found in low densities in earlier studies of the lake (1955–1956). To our knowledge, this is the first record of this widespread marine species in any lake. Samples taken from...

Authors

Kristen M. Reifel, M. P. McCoy, M. A. Tiffany, Tonie E. Rocke, Charles Trees, S. B. Barlow, D. J. Faulkner, S. H. Hurlbert

Ecosystems Mission Area, National Wildlife Health Center, Salton Sea

January 1, 2001

Oral chytridiomycosis in the mountain yellow-legged frog (Rana muscosa) Oral chytridiomycosis in the mountain yellow-legged frog (Rana muscosa)

The chytrid fungus Batrachochytrium dendrobatidis was originally reported in wild frog populations in Panama and Australia, and from captive frogs in the U.S. National Zoological Park (Washington, DC). This recently described fungus affects the keratinized epidermis of amphibians and has been implicated as a causative factor in the declines of frog populations. We report here the...

Authors

G. M. Fellers, D. E. Green, J.E. Longcore

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2001

Immune status of free-ranging green turtles with fibropapillomatosis from Hawaii Immune status of free-ranging green turtles with fibropapillomatosis from Hawaii

Cell-mediated and humoral immune status of free-ranging green turtles (Chelonia mydas) in Hawaii (USA) with and without fibropapillomatosis (FP) were assessed. Tumored and non-tumored turtles from Kaneohe Bay (KB) on the island of Oahu and from FP-free areas on the west (Kona/Kohala) coast of the island of Hawaii were sampled from April 1998 through February 1999. Turtles on Oahu were...

Authors

Thierry M. Work, Robert Rameyer, George H. Balazs, Carolyn Cray, Sandra P. Chang

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2001

National Wildlife Health Center's Quarterly Mortality Report National Wildlife Health Center's Quarterly Mortality Report

No abstract available.

Authors

A. Schrader, K. Converse, Kimberli J.G. Miller, G. McLaughlin, Rex Sohn

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2001

National Wildlife Health Center's Quarterly Mortality Report National Wildlife Health Center's Quarterly Mortality Report

No abstract available.

Authors

Kimberli J.G. Miller, K. Converse, A. Schrader

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2001

Size characteristics of stones ingested by common loons Size characteristics of stones ingested by common loons

Common Loon (Gavia immer) carcasses recovered in New England had more stones of greater combined mass in their stomachs than loons from the southeastern United States. Stones retained in sieves with mesh sizes between 4.75 and 8.00 mm accounted for the greatest percentage (by mass) of grit in loon stomachs. The median longest dimension of the largest single stone in each stomach was 12.5...

Authors

J. Christian Franson, Scott P. Hansen, Mark Pokras, Rose Miconi

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2000

Lead exposure in American black ducks after implementation of non-toxic shot Lead exposure in American black ducks after implementation of non-toxic shot

Lead poisoning from the ingestion of spent shotgun pellets has been recognized as an important disease of North American waterfowl since Bellrose's (1959) research >40 years ago. Nation-wide regulations banning the use of lead shot for waterfowl hunting were established in 1991. We compared the prevalence of lead exposure in American black ducks (Anas rubripes) wintering on 2 areas in...

Authors

M.D. Samuel, E. Frank Bowers

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2000

Septicemic pasteurellosis in free-ranging neonatal pronghorn in Oregon Septicemic pasteurellosis in free-ranging neonatal pronghorn in Oregon

As part of a study to determine the cause(s) of population decline and low survival of pronghorn (Antilocapra americana) neonates on Hart Mountain National Antelope Refuge (HMNAR), Oregon (USA), 55 of 104 neonates captured during May 1996 and 1997 were necropsied (n = 28, 1996; n = 27, 1997) to determine cause of death. Necropsies were conducted on fawns that died during May, June, or...

Authors

Michael R. Dunbar, Mark J. Wolcott, R.B. Rimler, Brenda M. Berlowski

Ecosystems Mission Area, National Wildlife Health Center