Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16910
Diet and nutrition Diet and nutrition
No abstract available at this time
Authors
F.T. Barrows, W.A. Lellis
Water Resources Data, Virginia, Water Year 1995; Volume 2. Ground-Water-Level and Ground-Water-Quality Records Water Resources Data, Virginia, Water Year 1995; Volume 2. Ground-Water-Level and Ground-Water-Quality Records
No abstract available.
Authors
Water Resources Division U.S. Geological Survey
Water Resources Data, Virginia, Water Year 1995, Volume 1. Surface-Water Discharge and Surface-Water Quality Records Water Resources Data, Virginia, Water Year 1995, Volume 1. Surface-Water Discharge and Surface-Water Quality Records
No abstract available.
Authors
R.K. White, Donald C. Hayes, M.R. Eckenwiler, D.L. Belval, P.E. Herman
Nutrient and triazine-herbicide concentrations in streams of the Chickies Creek Basin, south-central Pennsylvania, during low-flow conditions Nutrient and triazine-herbicide concentrations in streams of the Chickies Creek Basin, south-central Pennsylvania, during low-flow conditions
Excessive nutrients and herbicides in surface and ground water can affect human health and the aquatic life in Chickies Creek. Potential sources of these contaminants are all around us—direct application of nutrients and herbicides on land, discharge from wastewater-treatment and septic systems, and even deposition from the atmosphere. However, by far the largest source in the Chickies...
Authors
Michael J. Langland, Lloyd A. Reed
Prevalence and histopathology of shell disease in turtles from Lake Blackshear, Georgia Prevalence and histopathology of shell disease in turtles from Lake Blackshear, Georgia
Turtles in Lake Blackshear, Crisp County, Georgia (USA) were evaluated for shell disease during intensive trapping efforts on 8 and 9 May 1990. The disease was most prevalent in Pseudemys concinna (74%) and Trachemys scripta (35%). The degree of necrosis on the carapace was significantly positively correlated with the degree of necrosis on the plastron in T. scripta (rs = 0.50), but not...
Authors
J.E. Lovich, S.W. Gotte, C.H. Ernst, J. Harshbarger, A.F. Laemmerzahl
Metal concentrations of tadpoles in experimental ponds Metal concentrations of tadpoles in experimental ponds
Anuran tadpoles are found in a variety of habitats, many of which are acidified or have high ambient concentrations of metals from anthropogenic sources. A few studies that have been conducted on metals in tadpoles demonstrate that they can contain high concentrations of some metals but have not demonstrated clear relationships between ambient conditions and metal concentrations. This...
Authors
D. W. Sparling, T. P. Lowe
Limitations of captive breeding in endangered species recovery Limitations of captive breeding in endangered species recovery
The use of captive breeding in species recovery has grown enormously in recent years, but without a concurrent growth in appreciation of its limitations. Problems with (1) establishing self-sufficient captive populations, (2) poor success in reintroductions, (3) high costs, (4) domestication, (5) preemption of other recovery techniques, (6) disease outbreaks, and (7) maintaining...
Authors
N.F.R. Snyder, S.R. Derrickson, S.R. Beissenger, J. W. Wiley, T.B. Smith, W.D. Toone, B. Miller
Cytochrome P450 and contaminant concentrations in nestling black-crowned night-herons and their interrelation with sibling embryos Cytochrome P450 and contaminant concentrations in nestling black-crowned night-herons and their interrelation with sibling embryos
Hepatic cytochrome P450-associated monooxygenase activities were measured in 11-d-old nestling black-crowned night-herons (Nycticorax nycticorax) collected from a reference site (next to Chincoteague National Wildlife Refuge, VA, USA) and three contaminated sites (Cat Island, Green Bay, WI, USA; Bair Island, San Francisco Bay, CA, USA; and West Marin Island, San Francisco Bay, CA, USA)
Authors
Barnett A. Rattner, Mark J. Melancon, Thomas W. Custer, Roger L. Hothem
Observations of a grooved anterior fang in Psammodynastes pulverulentus: Does the mock viper resemble a protoelapid? Observations of a grooved anterior fang in Psammodynastes pulverulentus: Does the mock viper resemble a protoelapid?
No abstract available.
Authors
Kate Jackson, Thomas H. Fritts
The proper name of the neotropical tree boa often referred to as Corallus enhydris (Serpentes: Boidae) The proper name of the neotropical tree boa often referred to as Corallus enhydris (Serpentes: Boidae)
Confusion regarding the application of the proper scientific name for the common Neotropical tree boa has existed since Linnaeus described Boa enydris and Boa hortulana in 1758. We review the nomenclatural history of the species and point out the misapplication of scientific names that have characterized this form. Our review indicates that the proper scientific name for this highly...
Authors
Roy W. McDiarmid, T’Shaka Toure, Jay M. Savage
Interlaboratory study of precision: Hyalella azteca and Chironomus tentans freshwater sediment toxicity assays Interlaboratory study of precision: Hyalella azteca and Chironomus tentans freshwater sediment toxicity assays
Standard 10-d whole-sediment toxicity test methods have recently been developed by the U.S. Environmental Protection Agency (EPA) for the amphipod Hyalella azteca and the midge Chironomus tentans. An interlaboratory evaluation of method precision was performed using a group of seven to 10 laboratories, representing government, academia, and environmental consulting firms. The test...
Authors
G.A. Burton, T. J. Norberg-King, C.G. Ingersoll, D.A. Benoit, G.T. Ankley, P. V. Winger, J. Kubitz, J.M. Lazorchak, M.E. Smith, E. Greer, F.J. Dwyer, D.J. Call, K.E. Day, P. Kennedy, M. Stinson
Index of biotic integrity applied to a flow-regulated river system Index of biotic integrity applied to a flow-regulated river system
No abstract available.
Authors
Z.H. Bowen, Mary C. Freeman, D.L. Watson