Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16731
Mineral resource of the month: iron oxide pigments Mineral resource of the month: iron oxide pigments
The article discusses iron oxide pigments, which have been used as colorants since human began painting as they resist color change due to sunlight exposure, have good chemical resistance and are stable under normal ambient conditions. Cyprus, Italy and Spain are among the countries that are known for the production of iron oxide pigments. Granular forms of iron oxides and nano-sized...
Authors
Water Resources Division U.S. Geological Survey
Reevaluation of mid-Pliocene North Atlantic sea surface temperatures Reevaluation of mid-Pliocene North Atlantic sea surface temperatures
Multiproxy temperature estimation requires careful attention to biological, chemical, physical, temporal, and calibration differences of each proxy and paleothermometry method. We evaluated mid-Pliocene sea surface temperature (SST) estimates from multiple proxies at Deep Sea Drilling Project Holes 552A, 609B, 607, and 606, transecting the North Atlantic Drift. SST estimates derived from...
Authors
Marci M. Robinson, Harry J. Dowsett, Gary S. Dwyer, Kira T. Lawrence
Hydrologic connections and dynamics of water movement in the classical Karst (Kras) aquifer: Evidence from frequent chemical and stable isotope sampling Hydrologic connections and dynamics of water movement in the classical Karst (Kras) aquifer: Evidence from frequent chemical and stable isotope sampling
A review of past researchon the hydrogeology of the Classical Karst (Kras) region and new information obtained from a two-year study using environmental tracers are presented in this paper. The main problems addressed are 1) the sources of water to the Kras aquifer resurgence zone—including the famous Timavo springs—under changing flow regimes; 2) a quantification of the storage...
Authors
Daniel H. Doctor
Wildlife feeding in parks: methods for monitoring the effectiveness of educational interventions and wildlife food attraction behaviors Wildlife feeding in parks: methods for monitoring the effectiveness of educational interventions and wildlife food attraction behaviors
Opportunities to view and interact with wildlife are often an important part of high quality recreational experiences. Such interactions frequently include wildlife feeding, resulting in food-conditioned behaviors that may cause harm to both wildlife and visitors. This study developed and applied efficient protocols for simultaneously evaluating wildlife feeding-related behaviors of...
Authors
Jeffrey L. Marion, Robert G. Dvorak, Robert E. Manning
Atlantic Flyway review: Region IV Piedmont-Coastal Plain, Fall 2007 Atlantic Flyway review: Region IV Piedmont-Coastal Plain, Fall 2007
Region IV welcomed another coastal station in 2007 with a report from Chris Snook at Charleston, South Carolina. The season was hot and dry throughout Region IV except in Florida where precipitation averaged above normal. Banders blamed their poor success on the lack of cold fronts in August, September, and the first half of October and on persistent strong east winds that blew the...
Authors
Chandler S. Robbins
Estimating species occurrence, abundance, and detection probability using zero-inflated distributions Estimating species occurrence, abundance, and detection probability using zero-inflated distributions
Researchers have developed methods to account for imperfect detection of species with either occupancy (presence-absence) or count data using replicated sampling. We show how these approaches can be combined to simultaneously estimate occurrence, abundance, and detection probability by specifying a zero-inflated distribution for abundance. This approach may be particularly appropriate...
Authors
S.J. Wenger, Mary C. Freeman
Annual recapture and survival rates of two non-breeding adult populations of Roseate Terns Stema dougallii captured on the Great Barrier Reef, Australia, and estimates of their population sizes Annual recapture and survival rates of two non-breeding adult populations of Roseate Terns Stema dougallii captured on the Great Barrier Reef, Australia, and estimates of their population sizes
Capture-recapture data from two disparate breeding populations of Roseate Terns (Sterna dougallii) captured together as non-breeding individuals from 2002 to 2007 in the southern Great Barrier Reef. Australia were analyzed for both survival rate and recapture rate. The average annual survival rate for the birds from the Asian population (S. d. bangsi) (0.901) is higher than that of the...
Authors
P. O’Neill, C.D.T. Minton, I.C.T. Nisbet, J.E. Hines
Evaluation of specimen preservatives for DNA analyses of bees Evaluation of specimen preservatives for DNA analyses of bees
Large-scale insect collecting efforts that are facilitated by the use of pan traps result in large numbers of specimens being collected. Storage of these specimens can be problematic if space and equipment are limited. In this study, we investigated the effects of various preservatives (alcohol solutions and DMSO) on the amount and quality of DNA extracted from bees (specifically...
Authors
M. Frampton, Sam Droege, T. Conrad, S. Prager, M.H. Richards
Use of inverse-modeling methods to improve ground-water-model calibration and evaluate model-prediction uncertainty, Camp Edwards, Cape Cod, Massachusetts Use of inverse-modeling methods to improve ground-water-model calibration and evaluate model-prediction uncertainty, Camp Edwards, Cape Cod, Massachusetts
Historical weapons testing and disposal activities at Camp Edwards, which is located on the Massachusetts Military Reservation, western Cape Cod, have resulted in the release of contaminants into an underlying sand and gravel aquifer that is the sole source of potable water to surrounding communities. Ground-water models have been used at the site to simulate advective transport in the...
Authors
Donald A. Walter, Denis R. LeBlanc
Interpolation of Reconnaissance Multibeam and Single-Beam Bathymetry Offshore of Milford, Connecticut Interpolation of Reconnaissance Multibeam and Single-Beam Bathymetry Offshore of Milford, Connecticut
This report releases echosounder data from the northern part of the National Oceanic and Atmospheric Administration (NOAA) hydrographic survey H11044 in Long Island Sound, off Milford, Connecticut. The data have been interpolated and regridded into a complete-coverage data set and image of the sea floor. The grid produced as a result of the interpolation is at 10-m resolution. These data...
Authors
L.J. Poppe, S.D. Ackerman, K.Y. McMullen, P.T. Schattgen, J.D. Schaer, E. F. Doran
Forty-ninth supplement to the American Ornithologists' Union Check-list of North American birds Forty-ninth supplement to the American Ornithologists' Union Check-list of North American birds
This is the eighth Supplement since the publication of the 7th edition of the Check-list of North American Birds (American Ornithologists’ Union [AOU] 1998). It summarizes decisions made by the AOU’s Committee on Classification and Nomenclature-North and Middle America between 1 January and 31 December 2007.
Authors
Richard C. Banks, R. Terry Chesser, Carla Cicero, Jon L. Dunn, Andrew W. Kratter, Irby J. Lovette, Pamela C. Rasmussen, J.V. Remsen, James D. Rising, Douglas F. Stotz, Kevin Winker