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Publications

This is a list of publications written by Patuxent employees since Patuxent opened in 1939.  To search for Patuxent's publications by author or title, please click below to go to the USGS Publication Warehouse.

Filter Total Items: 8128

Differences in mortality among bobwhite fed methylmercury chloride dissolved in various carriers Differences in mortality among bobwhite fed methylmercury chloride dissolved in various carriers

Twelve-day-old bobwhite chicks were fed a diet containing 0, 5.4 or 20 ppm methylmercury chloride. The methylmercury chloride was added to the diet either in a dry, pulverized form or dissolved in acetone, propylene glycol or corn oil. Mortality was measured for 6 weeks, and samples of liver were saved for mercury analysis. Mortality was significantly lower in birds fed 20 ppm...
Authors
J. W. Spann, G. H. Heinz, M.B. Camardese, E. F. Hill, John F. Moore, H. C. Murray

Reproduction and health of mallards fed endrin Reproduction and health of mallards fed endrin

Concentrations of 0, 1 and 3 ppm endrin in dry duck mash were fed to mallards (Anas platyrhynchos) starting in December, and health and reproduction were measured the following spring and summer. One male fed 3 ppm endrin died with 2.0 ppm endrin (wet weight), a diagnostically lethal level, in its brain. Birds fed 1 ppm endrin reproduced as well as, if not better than, controls. Birds...
Authors
J. W. Spann, G. H. Heinz, C.S. Hulse

Depression of plasma luteinizing hormone concentration in quail by the anticholinesterase insecticide parathion Depression of plasma luteinizing hormone concentration in quail by the anticholinesterase insecticide parathion

1. To examine the effects of parathion on basal plasma luteinizing hormone (LH) concentration, male Japanese quail (Coturnix japonica) were orally intubated with 0, 5 or 10 mg/kg parathion and sacrificed after 4, 8 and 24 hr. 2. At the 5 mg/kg dose, plasma LH levels were reduced at 4 and 8 hr, but returned to control values by 24 hr. Brain acetylcholinesterase activity was substantially...
Authors
Barnett A. Rattner, R.N. Clarke, M. A. Ottinger

Trap-related injuries to gray wolves in Minnesota Trap-related injuries to gray wolves in Minnesota

Gray wolves (Canis lupus) captured in traps with toothed jaws offset 1.8 cm incurred fewer injuries than those captured in 3 other types of steel traps. Few wolves seriously damaged canine or carnassial teeth while in traps.
Authors
David W. Kuehn, Todd K. Fuller, L. David Mech, William J. Paul, Steven H. Fritts, William E. Berg

Boiga irregularis in Guam Boiga irregularis in Guam

No abstract available.
Authors
T. H. Fritts, N.J. Scott

Mercury, cadmium, lead, and selenium in three waterbird species nesting in Galveston Bay, Texas, USA Mercury, cadmium, lead, and selenium in three waterbird species nesting in Galveston Bay, Texas, USA

Heavy metal and selenium concentrations were determined in Olivaceous Cormorants (Phalacrocorax olivaceus ), Laughing gulls (Larus atricilla ), and Black Skimmers (Rynchops niger ) nesting in Galveston Bay, Texas, during 1980-81. Lead was detected at low levels in a small proportion of the liver samples. Mercury was present in all livers sampled, the highest levels being found in...
Authors
Kirk A. King, E. Cromartie

Effects of liberalized harvest regulations on wood ducks in the Atlantic Flyway Effects of liberalized harvest regulations on wood ducks in the Atlantic Flyway

Beginning in 1977the FWS provided southern Atlantic Flyway states the opportunity to liberalize wood duck harvest regulations. Harvest subsequently increased throughout the flyway but appeared to be more a function of population growth than changes in regulations. In the South, harvest rate increased only slightly for young males and no decline in average survival was detected. We found...
Authors
Fred A. Johnson, J.E. Hines, Frank Montalbano, J.D. Nichols
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