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
Snail kite nesting ecology in Florida Snail kite nesting ecology in Florida
No abstract available.
Authors
C.S. Robbins
Relation of pH and other soil variables to concentrations of Pb, Cu, Zn, Cd, and Se in earthworms Relation of pH and other soil variables to concentrations of Pb, Cu, Zn, Cd, and Se in earthworms
Various soil treatments (clay, composted peat, superphosphate, sulfur, calcium carbonate, calcium chloride, zinc chloride, selenous acid) were added to experimental field plots to test the effect of different soil variables on the concentrations of 5 elements in earthworms (Pb, Cu, Zn, Cd. SE). Concentrations of the 5 elements were related to 9 soil variables (soil Pb, soil Cu, soil Zn...
Authors
W. Nelson Beyer, Gary L. Hensler, Jeff Moore
Parvovirus and heartworm found in Minnesota wolves Parvovirus and heartworm found in Minnesota wolves
No abstract available.
Authors
L.D. Mech, S. H. Fritts
Biogeochemical cycling of selenium in the San Joaquin Valley, California, USA Biogeochemical cycling of selenium in the San Joaquin Valley, California, USA
Subsurface agricultural drainage waters from western San Joaquin Valley, California, were found to contain elevated concentrations of the element selenium in the form of selenate. In 1978, these drainage waters began to replace previous input to Kesterson Reservoir, a pond system within Kesterson National Wildlife Refuge; this substitution was completed by 1982. In the 1983 nesting...
Authors
T. S. Presser, H. M. Ohlendorf
Seasonal variation in diagnostic enzymes and biochemical constituents of captive northern bobwhites and passerines Seasonal variation in diagnostic enzymes and biochemical constituents of captive northern bobwhites and passerines
1. A variety of biochemical measurements were taken periodically in captive northern bobwhite (Colinus virginianus L.), European starlings (Sturnus vulgaris L.), red-winged blackbirds (Agelaius phoeniceus L.) and common grackles (Quiscalus quiscula L.) to determine whether baseline values remain sufficiently stable throughout the year for general clinical use in the absence of concurrent...
Authors
E. F. Hill, H. C. Murray
Density fluctuations in a meadow vole population at the Patuxent Wildlife Research Center Density fluctuations in a meadow vole population at the Patuxent Wildlife Research Center
No abstract available.
Authors
David A. Jett, J.D. Nichols
Reproduction in mallards fed selenium Reproduction in mallards fed selenium
Mallards (Anas platyrhynchos) were fed diets containing 1, 5, 10, 25 or 100 ppm selenium as sodium selenite, a diet containing 10 ppm selenium as seleno-DL-methionine or a control diet. There were no effects of 1, 5 or 10 ppm selenium as sodium selenite on either weight or survival of adults or on reproductive success, and there did not appear to be a dose-response relationship at these...
Authors
G. H. Heinz, D. J. Hoffman, A. J. Krynitsky, D.M.G. Weller
Residues of organochlorine pesticides and polychloribiphenyls [sic] in starlings (Sturnus vulgaris), from the continental United States, 1982 Residues of organochlorine pesticides and polychloribiphenyls [sic] in starlings (Sturnus vulgaris), from the continental United States, 1982
Starlings were collected from 129 sites throughout the contiguous United States in the fall of 1982 and analyzed for organochlorine compounds as part of a nationwide monitoring program. Residues of 14 organochlorine compounds were found. Only DDE, polychlorobiphenyls (PCB), dieldrin, and heptachlor epoxide occurred in more than 50% of the 10-starling pools. Geographical variation in the...
Authors
C.M. Bunck, R. M. Prouty, A. J. Krynitsky
Cocoon formation in another hylid frog, Smilisca baudinii Cocoon formation in another hylid frog, Smilisca baudinii
No abstract available.
Authors
R.W. McDiarmid, M.S. Foster
Case histories of bald eagles and other raptors killed by organophosphorus insecticides topically applied to livestock Case histories of bald eagles and other raptors killed by organophosphorus insecticides topically applied to livestock
Since 1982 when secondary poisoning of a red-tailed hawk (Buteo jamaicensis) was documented following the recommended use of famphur applied topically to cattle, the Patuxent Wildlife Research Center has tested dead birds of prey for poisoning by famphur and other pouron organophosphorus (OP) insecticides. Brain cholinesterase (ChE) activity was first determined, then if ChE was...
Authors
Charles J. Henny, E. J. Kolbe, E. F. Hill, L. J. Blus
Effects of polychlorinated biphenyls on mourning dove reproduction and circulating progesterone levels Effects of polychlorinated biphenyls on mourning dove reproduction and circulating progesterone levels
No abstract available.
Authors
P.J. Koval, T.J. Peterle, J.D. Harder