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
Two hybrid common x roseate terns fledge at Falkner Island, Connecticut Two hybrid common x roseate terns fledge at Falkner Island, Connecticut
Although these two similarly-sized species are sympatric throughout much of their breeding range, there are few published records of hybridization between Roseate (Sterna dougallii) and Common (S. hirundo) Terns. Records include at least five from Europe (Witherby and Ticehurst 1908, Perry 1972, Robbins 1974, Burggraeve 1977, van den Berg 1980) and only one from North America (Hays 1975)...
Authors
James M. Zingo, Christopher A. Church, Jeffrey A. Spendelow
Methods for measuring the toxicity and bioaccumulation of sediment-associated contaminants with freshwater invertebrates Methods for measuring the toxicity and bioaccumulation of sediment-associated contaminants with freshwater invertebrates
No abstract available.
Authors
C.G. Ingersoll, G.T. Ankley, G.A. Burton, F.J. Dwyer, R.A. Hoke, T. J. Norberg-King, P. V. Winger
The natural history of Caroline Atoll, Southern Line Islands. Part II. Seabirds, other terrestrial animals, and conservation The natural history of Caroline Atoll, Southern Line Islands. Part II. Seabirds, other terrestrial animals, and conservation
conclusion: Lushly wooded Caroline Atoll, with the majority of its 39 islets (399 ha of land) either in near-pristine condition or having recovered remarkably from past disturbance, is one of the least spoiled atolls in the Pacific. Uninhabited, it harbors plant ecosystems and breeding seabirds (Pt. II) of national and international importance. Its marine and terrestrial ecosystems are...
Authors
C. B. Kepler, A.K. Kepler, D. H. Ellis
The natural history of Caroline Atoll, Southern Line Islands. Part I. History, physiography, botany, and isle descriptions The natural history of Caroline Atoll, Southern Line Islands. Part I. History, physiography, botany, and isle descriptions
conclusion: Lushly wooded Caroline Atoll, with the majority of its 39 islets (399 ha of land) either in near-pristine condition or having recovered remarkably from past disturbance, is one of the least spoiled atolls in the Pacific. Uninhabited, it harbors plant ecosystems and breeding seabirds (Pt. II) of national and international importance. Its marine and terrestrial ecosystems are...
Authors
A.K. Kepler, C. B. Kepler
Vector-host-pathogen relationships: transmission dynamics of tickborne infections Vector-host-pathogen relationships: transmission dynamics of tickborne infections
No abstract available.
Authors
T.N. Mather, H. S. Ginsberg
American woodcock American woodcock
No abstract available.
Authors
J.A. Straw, D.G. Krementz, M.W. Olinde, G.F. Sepik
Trace elements in canvasbacks (Aythya valisineria) wintering in Louisiana, USA, 1987-1988 Trace elements in canvasbacks (Aythya valisineria) wintering in Louisiana, USA, 1987-1988
We determined trace element concentrations in livers of canvasbacks (Aythya valisineria) collected at Catahoula Lake and the Mississippi River Delta, Louisiana during, the winter of 1987–1988. Forty percent of canvasbacks wintering at Lake Catahoula had elevated concentrations of lead (>6·7 μg g−1 dry weight) in the liver; 33% had concentrations consistent with lead intoxication (>26·7...
Authors
Thomas W. Custer, William L. Hohman
The ninety-fourth Christmas Bird Count: OC MD Ocean City, MD The ninety-fourth Christmas Bird Count: OC MD Ocean City, MD
No abstract available.
Authors
C.S. Robbins
Habitat use by an endangered riverine fish and implications for species protection Habitat use by an endangered riverine fish and implications for species protection
We investigated habitat specificity of the amber darter (Percina antesella Williams & Etnier 1977), an imperiled fish from restricted portions of 2 rivers in the southeastern United States. Foraging amber darters occupied a narrow range of riffle habitat, consistently avoiding areas 20 cm deep and with velocity 10 cm. s-1 near the substrate, occupying areas with cobble or gravel...
Authors
C.S. Robbins
Trail conditions and management practices in the National Park Service Trail conditions and management practices in the National Park Service
No abstract available.
Authors
J. L. Marion
Buffer zones of territories of gray wolves as regions of intraspecific strife Buffer zones of territories of gray wolves as regions of intraspecific strife
The locations of 22 territorial gray wolves (Canis lupus) killed by conspecifics in northeastern Minnesota were analyzed in a study involving radio-telemetry from 1968 through 1992. Twenty-three percent of the wolves were killed precisely on the borders of their estimated territories; 41%, within 1.0 km (16% of the radius of their mean-estimated territory) inside or outside the estimated...
Authors
L.D. Mech