Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16731
Length of stay, survival, habitat use and migration characteristics of fall migrant Soras on the Patuxent River marsh as determined by radio telemetry Length of stay, survival, habitat use and migration characteristics of fall migrant Soras on the Patuxent River marsh as determined by radio telemetry
No abstract available.
Authors
G. Michael Haramis, Gregory D. Kearns
Proceedings of the marsh bird monitoring workshop Proceedings of the marsh bird monitoring workshop
No abstract available.
Authors
C.A. Ribic, S.J. Lewis, S. Melvin, J. Bart, B. Peterjohn
[Book review] A Neotropical Companion: An Introduction to the Animals, Plants, and Ecosystems of the New World Tropics,. second edition, by John Kricher, Princeton University Press, 1997 [Book review] A Neotropical Companion: An Introduction to the Animals, Plants, and Ecosystems of the New World Tropics,. second edition, by John Kricher, Princeton University Press, 1997
No abstract available.
Authors
C.S. Robbins
Sex determination of the Acadian Flycatcher using discriminant analysis Sex determination of the Acadian Flycatcher using discriminant analysis
I used five morphometric variables from 114 individuals captured in Arkansas to develop a discriminant model to predict the sex of Acadian Flycatchers (Empidonax virescens). Stepwise discriminant function analyses selected wing chord and tail length as the most parsimonious subset of variables for discriminating sex. This two-variable model correctly classified 80% of females and 97% of...
Authors
R.R. Wilson
Birds and the Animal Welfare Act Birds and the Animal Welfare Act
No abstract available.
Authors
Glenn H. Olsen
Preliminary survey for entomopathogenic fungi associated with Ixodes scapularis (Acari: Ixodidae) in southern New York and New England, USA Preliminary survey for entomopathogenic fungi associated with Ixodes scapularis (Acari: Ixodidae) in southern New York and New England, USA
Free-living larval, nymphal, and adult Ixodes scapularis Say were collected from scattered locales in southern New England and New York to determine infection rates with entomopathogenic fungi. Infection rates of larvae, nymphs, males, and females were 0% (571), 0% (272), 0% (57), and 4.3% (47), respectively. Two entomopathogenic fungi were isolated from field-collected I. scapularis...
Authors
Elyes Zhioua, Howard S. Ginsberg, Richard A. Humber, Roger A. LeBrun
Aspects of chick growth in Gull-billed Terns in coastal Virginia Aspects of chick growth in Gull-billed Terns in coastal Virginia
Because of concerns about apparent population declines and low productivity of Gull-billed Terns (Sterna nilotica) along the coast of Virginia, we investigated whether food limitations may result in retarded growth rates of young. Several colonies of Gull-billed Terns were monitored from May to July each year from 1994 to 1996 on both sandy barrier islands and marsh/shellpile islands in...
Authors
R.M. Erwin, T.B. Eyler, Daniel B. Stotts, Jeff S. Hatfield
Ground-water system, estimation of aquifer hydraulic properties, and effects of pumping on ground-water flow in Triassic sedimentary rocks in and near Lansdale, Pennsylvania Ground-water system, estimation of aquifer hydraulic properties, and effects of pumping on ground-water flow in Triassic sedimentary rocks in and near Lansdale, Pennsylvania
Ground water in Triassic-age sedimentary fractured-rock aquifers in the area of Lansdale, Pa., is used as drinking water and for industrial supply. In 1979, ground water in the Lansdale area was found to be contaminated with trichloroethylene, tetrachloroethylene, and other man-made organic compounds, and in 1989, the area was placed on the U.S. Environmental Protection Agency's (USEPA)...
Authors
Lisa A. Senior, Daniel J. Goode
Summary of hydrogeologic and ground-water-quality data and hydrogeologic framework at selected well sites, Adams County, Pennsylvania Summary of hydrogeologic and ground-water-quality data and hydrogeologic framework at selected well sites, Adams County, Pennsylvania
Rapid population growth in Adams County has increased the demand for ground water and led Adams County planning officials to undertake an effort to evaluate the capabilities of existing community water systems to meet future, projected growth and to begin wellhead-protection programs for public-supply wells. As part of this effort, this report summarizes ground-water data on a countywide...
Authors
Dennis J. Low, Diana L. Dugas
Use of computer programs STLK1 and STWT1 for analysis of stream-aquifer hydraulic interaction Use of computer programs STLK1 and STWT1 for analysis of stream-aquifer hydraulic interaction
Quantifying the hydraulic interaction of aquifers and streams is important in the analysis of stream base fow, flood-wave effects, and contaminant transport between surface- and ground-water systems. This report describes the use of two computer programs, STLK1 and STWT1, to analyze the hydraulic interaction of streams with confined, leaky, and water-table aquifers during periods of...
Authors
Leslie A. DeSimone, Paul M. Barlow