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
The ninety-fifth Christmas Bird Count. OC MD. Ocean City, MD The ninety-fifth Christmas Bird Count. OC MD. Ocean City, MD
No abstract available.
Authors
C.S. Robbins, J.M. Sheppard
Sediment toxicity in Savannah Harbor Sediment toxicity in Savannah Harbor
Savannah Harbor, located near the mouth of the Savannah River, Georgia and South Carolina, is impacted by industrial and municipal effluents. Potential release of contaminants stored in harbor sediments through dredging and shipping operations requires that contaminated areas be identified for proper management of the system and protection of wildlife resources. During 1991, Hyalella...
Authors
P. V. Winger, P. J. Lasier
The reconstruction of Kenilworth Marsh, the last tidal marsh in Washington, D.C. The reconstruction of Kenilworth Marsh, the last tidal marsh in Washington, D.C.
No abstract available.
Authors
S.W. Syphax, R.S. Hammerschlag
Acephate affects migratory orientation of the white-throated sparrow (Zonotrichia albicollis) Acephate affects migratory orientation of the white-throated sparrow (Zonotrichia albicollis)
Migratory white-throated sparrows (Zonotrichia albicollis) were exposed to acephate (acetylphosphoramidothioic acid O, S-dimethyl ester), an organophosphorus pesticide, to determine its effects on migratory orientation and behavior. Birds were also exposed to polarizer sheets to determine the mechanism by which acephate may affect migratory orientation. Adult birds exposed to 256 ppm...
Authors
N.B. Vyas, E. F. Hill, J.R. Sauer, Wayne J. Kuenzel
Application of brain cholinesterase reactivation to differentiate between organophosphorus and carbamate pesticide exposure in wild birds Application of brain cholinesterase reactivation to differentiate between organophosphorus and carbamate pesticide exposure in wild birds
Brain cholinesterase activity was measured to evaluate pesticide exposure in wild birds. Thermal reactivation of brain cholinesterase was used to differentiate between carbamate and organophosphorus pesticide exposure. Brain cholinesterase activity was compared with gas chromatography and mass spectrometry of stomach contents. Pesticides were identified and confirmed in 86 of 102...
Authors
W. R. Smith, N. J. Thomas, C. Hulse
Assessing ground-based counts of nestling bald eagles in northeastern Minnesota Assessing ground-based counts of nestling bald eagles in northeastern Minnesota
We present evidence that the bald eagle (Haliaeetus leucocephalus) productivity survey in the Boundary Waters Canoe Area Wilderness of northeastern Minnesota may have underestimated the number of nestlings during 1986-1988. Recommendations are provided to achieve more accurate ground-based counts. By conducting ground-based observations for up to 1 hour/nest, an accurate count of the...
Authors
M.R. Fuller, Jeff S. Hatfield, E. L. Lindquist
Distribution and abundance of Emoia slevini (Scincidae) in the Mariana Islands Distribution and abundance of Emoia slevini (Scincidae) in the Mariana Islands
No abstract available.
Authors
M. J. McCoid, G.H. Rodda, T. H. Fritts
Composition, abundance, biomass, and production of macrofauna in a New England estuary: Comparisons among eelgrass meadows and other nursery habitats Composition, abundance, biomass, and production of macrofauna in a New England estuary: Comparisons among eelgrass meadows and other nursery habitats
Quantitative suction sampling was used to characterize and compare the species composition, abundance, biomass, and secondary production of macrofauna inhabiting intertidal mud-flat and sand-flat, eelgrass meadow, and salt-marsh-pool habitats in the Nauset Marsh complex, Cape Cod, Massachusetts (USA). Species richness and abundance were often greatest in eelgrass habitat, as was...
Authors
K.L. Heck, K.W. Able, C. T. Roman, M.P. Fahay
Effects of polychlorinated dibenzo-p-dioxins and dibenzofurans on nesting wood ducks (Aix Sponsa) at Bayou Meto, Arkansas Effects of polychlorinated dibenzo-p-dioxins and dibenzofurans on nesting wood ducks (Aix Sponsa) at Bayou Meto, Arkansas
Wood ducks (Aix sponsa) nesting along Bayou Meto downstream from a hazardous waste site in central Arkansas were contaminated with polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs). Residues in eggs, based on 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalents (TCDD-EQ), ranged up to 611 parts per trillion (ppt), and egg arithmetic means were 90-fold higher at the site...
Authors
Donald H. White, David J. Hoffman
Texas rat snake (Elaphe obsoleta lindheimeri) eggs and hatchlings from a communal nest Texas rat snake (Elaphe obsoleta lindheimeri) eggs and hatchlings from a communal nest
No abstract available.
Authors
D. R. Clark, G.W. Pendleton
North American migratory bird management issues North American migratory bird management issues
As human population and industry have grown in North America, land-use practices have greatly altered the landscape. As a result of this changed landscape, several migratory bird populations have declined in recent years. For waterbirds, there have been several milestones: the 1986 North American Waterfowl Management Plan (NAWMP) and the 1989 North American Wetlands Conservation Act. As...
Authors
M.H. Wilson, D.A. Ryan
Preliminary raptor surveys in western Mongolia Preliminary raptor surveys in western Mongolia
Raptors were observed on a 5200 km expedition from Ulaan Baatar through the Hangay Mountains to the Russian Altay Mountains with return through the Gobi Altay Mountains. The focus of the expedition was on nesting ecology of the Saker (Falco cherrug) and Altay falcons (F. altaicus) (25 eyries were located), but nests were also found for seven other species including more than 30 nests...
Authors
D. H. Ellis, Merlin H. Ellis, Pu Tsengeg