Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16731
Creating and managing wetland impoundments to provide habitat for aquatic birds Creating and managing wetland impoundments to provide habitat for aquatic birds
Patuxent Research Refuge, located in Central Maryland (USA), has approximately 140 ha of impoundments that were constructed for recreational and wildlife conservation purposes. Impoundments are of three major designs: dammed ravines, excavated basins, and diked ponds. Over 50 species of wetland plants were transplanted to impoundments of Patuxent from many parts of the United States...
Authors
Matthew C. Perry, P. Kangas, H.H. Obrecht
Conservation of herons Conservation of herons
No abstract available.
Authors
H. Hafner, R.V. Lansdown, J.A. Kushlan, Robert W. Butler, T. W. Custer, I.J. Davidson, R.M. Erwin, J.A. Hancock, A.M. Lyles, M. Maddock, L. Marion, G. Morales, T. Mundkur, C. Perennou, O. Pineau, D. Turner, P. Ulenaers, J. van Vessem, L. Young
Host selection in the forest interior: cowbirds target ground-nesting species Host selection in the forest interior: cowbirds target ground-nesting species
We investigated patterns of cowbird host selection in a large (1300 ha), unfragmented forest in eastern New York in 1992-3 to determine whether cowbird parasitism rates can be attributed to species-specific traits or to other features associated with nest sites. Nest height was significantly associated with parasitism (P = 0.003) in this community of 23 species (n = 430 nests, 23%...
Authors
D.C. Hahn, Jeff S. Hatfield
DC birdscape: a program for monitoring neotropical migrant birds in Washington, DC DC birdscape: a program for monitoring neotropical migrant birds in Washington, DC
Urban and suburban habitats often contain a variety of Neotropical migratory birds, but are poorly sampled by programs such as the North American Breeding Bird Survey. DC Birdscape was developed to inventory and monitor birds in Washington, D.C. Birds were surveyed using a systematic sample of point counts during 1993-1995. Results indicate that species richness of Neotropical migratory...
Authors
J.R. Sauer, J. Hadidian, C. Swarth, Sam Droege, P. Handly, G. Diddan, J. Huff
Streamflow Statistics for the Narraguagus River at Cherryfield, Maine Streamflow Statistics for the Narraguagus River at Cherryfield, Maine
Streamflow data have been collected for the Narraguagus River from 1948 to the present (2000) at the U.S. Geological Survey (USGS) streamgaging station at Cherryfield, Maine. This report describes a study done by the USGS to determine streamflow statistics using the streamflow record at the Narraguagus River station for use in total water use management plans implemented by State and...
Authors
Robert W. Dudley, Joseph P. Nielsen
Environmental Setting and Effects on Water Quality in the Great and Little Miami River Basins, Ohio and Indiana Environmental Setting and Effects on Water Quality in the Great and Little Miami River Basins, Ohio and Indiana
The Great and Little Miami River Basins drain approximately 7,354 square miles in southwestern Ohio and southeastern Indiana and are included in the more than 50 major river basins and aquifer systems selected for water-quality assessment as part of the U.S. Geological Survey's National Water-Quality Assessment Program. Principal streams include the Great and Little Miami Rivers in Ohio...
Authors
Linda M. Debrewer, Gary L. Rowe, David C. Reutter, Rhett C. Moore, Julie A. Hambrook, Nancy T. Baker
Altitude and configuration of the potentiometric surface in Upper Elk Creek watershed, Chester County, Pennsylvania, January through June 1999 Altitude and configuration of the potentiometric surface in Upper Elk Creek watershed, Chester County, Pennsylvania, January through June 1999
No abstract available
Authors
Abdul Mohammad
Altitude and configuration of the potentiometric surface in Warwick and East Nantmeal townships, Chester County, Pennsylvania, July through December 1998 Altitude and configuration of the potentiometric surface in Warwick and East Nantmeal townships, Chester County, Pennsylvania, July through December 1998
No abstract available
Authors
Cynthia J. Rowland
Techniques for estimating magnitude and frequency of peak flows for Pennsylvania streams Techniques for estimating magnitude and frequency of peak flows for Pennsylvania streams
Regression equations for estimating the magnitude and frequency of floods on ungaged streams in Pennsylvania with drainage areas less that 2,000 square miles were developed on the basis of peak-flow data collected at 313 streamflow-gaging stations. All streamflow-gaging stations used in the development of the equations had 10 or more years of record and include active and discontinued...
Authors
Marla H. Stuckey, Lloyd A. Reed