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
Net photosynthesis and respiration of sago pondweed (Potamogeton pectinatus) exposed to herbicides Net photosynthesis and respiration of sago pondweed (Potamogeton pectinatus) exposed to herbicides
We determined net photosynthesis and respiration rates for sago pondweed (potamogeton pectinatus) exposed to various concentrations of 11 herbicides widely used in Maryland during the past decade. Net photosynthesis and respiration were determined by measuring changes in the. oxygen content of solutions containing dilutions of technical grade herbicides. At 20-22? C and 58 umol/m2/sec of
Authors
W. James Fleming, M.S. Ailstock, J.J. Momot
Puerto Rican parrots and potential limitations of the metapopulation approach to species conservation Puerto Rican parrots and potential limitations of the metapopulation approach to species conservation
No abstract available.
Authors
M.H. Wilson, C. B. Kepler, N.F.R. Snyder, S.R. Derrickson, F. J. Dein, J. W. Wiley, J.M. Wunderle, A.E. Lugo, D.L. Graham, W.D. Toone
Waterfowl population trends in the Chesapeake Bay area Waterfowl population trends in the Chesapeake Bay area
No abstract available.
Authors
Matthew C. Perry, A.S. Deller
[Book review] Aquatic Toxicology: Molecular, Biochemical and Cellular Perspectives, edited by Donald C. Malins and Gary K. Ostrander [Book review] Aquatic Toxicology: Molecular, Biochemical and Cellular Perspectives, edited by Donald C. Malins and Gary K. Ostrander
No abstract available.
Authors
R. Eisler
A colored leg banding technique for Amazona parrots A colored leg banding technique for Amazona parrots
A technique for individual identification of Amazona was developed using plastic leg bands. Bands were made from 5- and 7-mm-wide strips of laminated PVC coiled 2.5 times with an inside diameter 4-5 mm gt the maximum diameter of the parrot's leg. Seventeen parrots were captured in Puerto Rico, marked with individual plastic leg bands, and observed for 204-658 d with only one lost or...
Authors
J.M. Meyers
Environmental auditing: Capabilities and management utility of recreation impact monitoring programs Environmental auditing: Capabilities and management utility of recreation impact monitoring programs
A recreation impact monitoring system was developed and applied in 1984?1986 and in 1991 to all backcountry river-accessed campsites within Delaware Water Gap National Recreation Area, Pennsylvania and New Jersey. Results suggest that actions implemented by park managers in response to problems identified by the initial survey were highly effective in reducing resource degradation caused...
Authors
J. L. Marion
What is Falco Altaicus Menzbier? What is Falco Altaicus Menzbier?
The systematics of the Altay falcon (Falco altaicus/lorenzi) remains enigmatic. First reported in 1811, it has been treated as a gyrfalcon (F. rusticolus), a saker (F. cherrug), and two separate species (F. lorenzi and F. altaicus). Of 53 'altaicus' specimens examined, at least two are misidentified gyrfalcons, many are typical sakers, but 34 (the core group) are considered to be the...
Authors
D. H. Ellis
Organochlorine pesticides Organochlorine pesticides
the discovery of the insecticidal properties of DDT, which led to its subsequent use in pest control,w as hailed as a tremendous scientiffic achievement. Initial success with DDT in controlling human health pests during World War II, and subsequent success in agricultural pest control, stimulated the synthesis and development of related organochlorine pestidices; their use increased...
Authors
Lawrence J. Blus
Electroplating wastes in marine environments: A case history at Quonset Point, Rhode Island Electroplating wastes in marine environments: A case history at Quonset Point, Rhode Island
All U.S. Navy electroplating and metal-finishing wastes are now required to pass through industrial-wastewater treatment plants and other treatment facilities for the removal of heavy metals and other potentially hazardous materials. In 1984 a total of 235,191 metric tons (t) of electroplating and metal-finishing wastes from 70 U.S. Navy installations - primarily shipyards, aviation...
Authors
Ronald Eisler
Colonial waterbirds Colonial waterbirds
Colonial waterbirds, that is, seabirds (gulls, terns, cormorants, pelicans) and wading birds (herons, egrets, ibises), have attracted the attention of scientists, conservationists, and the public since the turn of the century when plume hunters nearly drove many species to extinction. The first national wildlife refuge at Pelican Island, Florida, was founded to conserve a large nesting...
Authors
R. Michael Erwin