Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16904
Comparing protein and energy status of winter-fed white-tailed deer Comparing protein and energy status of winter-fed white-tailed deer
Although nutritional status in response to controlled feeding trials has been extensively studied in captive white-tailed deer (Odocoileus virginianus), there remains a considerable gap in understanding the influence of variable supplemental feeding protocols on free-ranging deer. Consequently, across the northern portion of the white-tailed deer range, numerous property managers are...
Authors
B.D. Page, H.B. Underwood
Addressing error in identification of Ambystoma maculatum (spotted salamanders) using spot patterns Addressing error in identification of Ambystoma maculatum (spotted salamanders) using spot patterns
No abstract available.
Authors
E.H.C. Grant, P. Nanjappa
Chemical and ecological health of white sucker (Catostomus Commersoni) in Rock Creek Park, Washington, D.C., 2003?04 Chemical and ecological health of white sucker (Catostomus Commersoni) in Rock Creek Park, Washington, D.C., 2003?04
Several classes of chemicals that are known or suspected contaminants were found in bed sediment in Rock Creek, including polyaromatic hydrocarbons (PAHs), phthalate esters, organochlorine pesticides, dioxins and furans, trace metals and metalloids (mercury, arsenic, cadmium, chromium, cobalt, copper, lead, nickel, silver, and zinc), and polychlorinated biphenyls (total PCBs and selected...
Authors
C.V. Miller, H.S. Weyers, V. S. Blazer, M.E. Freeman
Coastal wetland vulnerability to relative sea-level rise: wetland elevation trends and process controls Coastal wetland vulnerability to relative sea-level rise: wetland elevation trends and process controls
No abstract available.
Authors
Donald R. Cahoon, P.F. Hensel, Terri Spencer, D.J. Reed, K.L. McKee, N. Saintilan
Head-bobbing behavior in foraging Whooping Cranes Head-bobbing behavior in foraging Whooping Cranes
Many species of cursorial birds 'head-bob', that is, they alternately thrust the head forward, then hold it stiII as they walk. Such a motion stabilizes visual fields intermittently and could be critical for visual search; yet the time available for stabilization vs. forward thrust varies with walking speed. Whooping Cranes (Grus americana) are extremely tall birds that visually search...
Authors
T. Cronin, M. Kinloch, Glenn H. Olsen
Five years (2000-2004) of post-reconstruction monitoring of freshwater tidal wetlands in the urban Anacostia River, Washington, D.C. USA Five years (2000-2004) of post-reconstruction monitoring of freshwater tidal wetlands in the urban Anacostia River, Washington, D.C. USA
The Anacostia River in Washington, D.C. USA consisted of over 809 hectares (2000 acres) of freshwater tidal wetlands before mandatory dredging removed most of them in the first half of the 20th century. Much of this13 kilometer (8 mile) reach was transferred to the National Park Service (NPS). Planning processes in the 1980's envisioned a restoration (rejuvenation) of some wetlands for...
Authors
D. Hammerschlag, C. Krafft
Five-year post-reconstruction Kingman Marsh monitoring project: vegetation Five-year post-reconstruction Kingman Marsh monitoring project: vegetation
No abstract available.
Authors
R.S. Hammerschlag, C.C. Krafft
Determination of the δ15N and δ13C of total nitrogen and carbon in solids; RSIL lab code 1832 Determination of the δ15N and δ13C of total nitrogen and carbon in solids; RSIL lab code 1832
The purpose of the Reston Stable Isotope Laboratory (RSIL) lab code 1832 is to determine the δ(15N/14N), abbreviated as δ15N, and the δ(13C/12C), abbreviated as δ13C, of total nitrogen and carbon in a solid sample. A Carlo Erba NC 2500 elemental analyzer (EA) is used to convert total nitrogen and carbon in a solid sample into N2 and CO2 gas. The EA is connected to a continuous flow...
Authors
Kinga Revesz, Haiping Qi, Tyler B. Coplan
Hydratools manual version 1.0, documentation for a MATLAB®-based post-processing package for the Sontek Hydra Hydratools manual version 1.0, documentation for a MATLAB®-based post-processing package for the Sontek Hydra
The Sediment Transport Instrumentation Group (STG) at the U.S. Geological Survey (USGS) Woods Hole Science Center has a long-standing comitment to providing scientists with high quality oceanographic data. To meet this commitment, STG personnel are vigilant in checking data as well as hardware for signs of instrument malfunction. STG data sets are accompanied by processing histories to...
Authors
Marinna A. Martini, Chris Sherwood, Rachel Horwitz, Andree Ramsey, Fran Lightsom, Jessie Lacy, Jingping Xu
The Virginia Coastal Plain hydrogeologic framework The Virginia Coastal Plain hydrogeologic framework
A refined descriptive hydrogeologic framework of the Coastal Plain of eastern Virginia provides a new perspective on the regional ground-water system by incorporating recent understanding gained by discovery of the Chesapeake Bay impact crater and determination of other geological relations. The seaward-thickening wedge of extensive, eastward-dipping strata of largely unconsolidated...
Authors
E. Randolph McFarland, T. Scott Bruce
Organic Compounds, Trace Elements, Suspended Sediment, and Field Characteristics at the Heads-of-Tide of the Raritan, Passaic, Hackensack, Rahway, and Elizabeth Rivers, New Jersey, 2000-03 Organic Compounds, Trace Elements, Suspended Sediment, and Field Characteristics at the Heads-of-Tide of the Raritan, Passaic, Hackensack, Rahway, and Elizabeth Rivers, New Jersey, 2000-03
Concentrations of suspended sediment, particulate and dissolved organic carbon, trace elements, and organic compounds were measured in samples from the heads-of-tide of the five tributaries to the Newark and Raritan Bays during June 2000 to June 2003. The samples were collected as part of the New Jersey Department of Environmental Protection Toxics Reduction Workplan/Contaminant...
Authors
Jennifer L. Bonin, Timothy P. Wilson
Frontcountry recreation site and trail conditions: Haleakala National Park: Research Report Frontcountry recreation site and trail conditions: Haleakala National Park: Research Report
No abstract available.
Authors
Jeffrey L. Marion, K.A. Hockett