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
Demise of an insular avifauna: the brown tree snake on Guam Demise of an insular avifauna: the brown tree snake on Guam
No abstract available.
Authors
J. Engbring, T. H. Fritts
Influence of the method of fluoride administration on toxicity and fluoride concentrations in Japanese quail Influence of the method of fluoride administration on toxicity and fluoride concentrations in Japanese quail
Young Japanese quail (Coturnix japonica) were administered NaF for 16 d either in their diet or by esophageal intubation. Based on the total fluoride ion (Σmg F−) intake over the 16-d experimental period, fluoride administered by intubation was at least six times more toxic than that fed in the diet. Dietary concentrations of 1,000 ppm F− (Σmg F− for 16 d = approx. 144) produced no...
Authors
W. James Fleming, C.A. Schuler
Heat exposure and the toxicity of one number four lead shot in mallards, Anas platyrhynchos Heat exposure and the toxicity of one number four lead shot in mallards, Anas platyrhynchos
No abstract available.
Authors
E. Srebocan, Barnett A. Rattner
Reproduction in black-crowned night-herons fed selenium Reproduction in black-crowned night-herons fed selenium
Agricultural and industrial practices can produce wastewater that contains high concentrations of selenium, a naturally-occurring trace element. Selenium entering aquatic systems through wastewater inflow can accumulate in aquatic food chains to levels that may be toxic to fish and wildlife species. Mallard reproduction is known to be adversely affected by 10 ppm selenium in the diet...
Authors
G. J. Smith, G. H. Heinz, D. J. Hoffman, J. W. Spann, A. J. Krynitsky
Effects of dietary fluoride on reproduction in eastern screech-owls Effects of dietary fluoride on reproduction in eastern screech-owls
Sixty-six eastern screech-owls (Otus asio) were paired and randomly assigned to dietary treatment groups of 0, 40, or 200 ppm (mg/kg) fluoride (as sodium fluoride) in November 1981. Hatching success was adversely affected at the 200 ppm (mg/kg) level, suggesting potential detrimental impacts to wild populations exposed to fluoride pollution. Eggshell thickness was unaffected. Although...
Authors
O. H. Pattee, Stanley N. Wiemeyer, D. M. Swineford
Food habits and distribution of wintering canvasbacks, Aythya valisineria, on Chesapeake Bay Food habits and distribution of wintering canvasbacks, Aythya valisineria, on Chesapeake Bay
Baltic clams (Macoma balthica) were the predominant food items of 323 canvasbacks (Aythya valisineria) collected throughout Chesapeake Bay during 1970–1979. Natural vegetation constituted 4% of the food volume. Widgeongrass (Ruppia maritima) and redhead grass (Potamogeton perfoliatus) constituted the greatest percent volume and frequency of occurrence among the plant species, whereas...
Authors
Matthew C. Perry, F.M. Uhler
Response of urinary hydroxyproline to dietary protein and fasting in white-tailed deer Response of urinary hydroxyproline to dietary protein and fasting in white-tailed deer
The effects of dietary protein, fasting, and refeeding on urinary hydroxyproline of nine captive female white-tailed deer (Odocoileus virginianus) were examined from 23 February to 3 May 1984 in northern Minnesota. In the fasted group, mean hydroxyproline: creatinine (OHP:C) was greater (P 0.05) at week 4 compared to baseline at week 0. Between fasted deer and deer fed high protein-high...
Authors
G. D. DelGiudice, U.S. Seal, L.D. Mech
The lost world of Venezuela. An African Connection The lost world of Venezuela. An African Connection
No abstract available.
Authors
V.A. Funk, R.W. McDiarmid
Simple, specific analysis of organophosphorus and carbamate pesticides in sediments using column extraction and gas chromatography Simple, specific analysis of organophosphorus and carbamate pesticides in sediments using column extraction and gas chromatography
A simple, specific procedure was developed for the analysis of organophosphorus and carbamate pesticides in sediment. The wet soil was mixed with anhydrous sodium sulfate to bind water and the residues were column extracted in acetonermethylene chloride (1:1, v/v). Coextracted water was removed by additional sodium sulfate packed below the sample mixture. The eluate was concentrated and...
Authors
A. A. Belisle, D. M. Swineford
Length of stay and fat content of migrant semipalmated sandpipers in eastern Maine Length of stay and fat content of migrant semipalmated sandpipers in eastern Maine
Semipalmated Sandpipers (Calidris pusilla) stop at coastal staging areas in the Canadian maritime provinces and northeastern United States to replenish fat reserves before initiating a nonstop transoceanic flight of at least 3,200 km to wintering areas in South America. The relationship between estimated fat content at capture and length of stay (days between marking and last observation...
Authors
P.O. Dunn, T.A. May, M.A. McCollough, M.A. Howe
The brown tree snake, Boiga irregularis, a threat to Pacific Islands The brown tree snake, Boiga irregularis, a threat to Pacific Islands
No abstract available.
Authors
T. H. Fritts