Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16785
Estuarine sediment transport by gravity-driven movement of the nepheloid layer, Long Island Sound
Interpretation of sidescan-sonar imagery provides evidence that down-slope gravity-driven movement of the nepheloid layer constitutes an important mode of transporting sediment into the basins of north-central Long Island Sound, a major US East Coast estuary. In the Western Basin, this transport mechanism has formed dendritic drainage systems characterized by branching patterns of low backscatter
Authors
L. J. Poppe, K.Y. McMullen, S.J. Williams, J.M. Crocker, E. F. Doran
Controls on coastal dune morphology, shoreline erosion and barrier island response to extreme storms
The response of a barrier island to an extreme storm depends in part on the surge elevation relative to the height and extent of the foredunes which can exhibit considerable variability alongshore. While it is recognized that alongshore variations in dune height and width direct barrier island response to storm surge, the underlying causes of the alongshore variation remain poorly understood. This
Authors
C. Houser, C. Hapke, S. Hamilton
Development of a three-dimensional, regional, coupled wave, current, and sediment-transport model
We are developing a three-dimensional numerical model that implements algorithms for sediment transport and evolution of bottom morphology in the coastal-circulation model Regional Ocean Modeling System (ROMS v3.0), and provides a two-way link between ROMS and the wave model Simulating Waves in the Nearshore (SWAN) via the Model-Coupling Toolkit. The coupled model is applicable for fluvial, estuar
Authors
J.C. Warner, C. R. Sherwood, R. P. Signell, C. K. Harris, H.G. Arango
Calculating wave-generated bottom orbital velocities from surface-wave parameters
Near-bed wave orbital velocities and shear stresses are important parameters in many sediment-transport and hydrodynamic models of the coastal ocean, estuaries, and lakes. Simple methods for estimating bottom orbital velocities from surface-wave statistics such as significant wave height and peak period often are inaccurate except in very shallow water. This paper briefly reviews approaches for es
Authors
P.L. Wiberg, C. R. Sherwood
Anti-tick biological control agents: assessment and future perspectives
Widespread and increasing resistance to most available acaracides threatens both global livestock industries and public health. This necessitates better understanding of ticks and the diseases they transmit in the development of new control strategies. Ticks: Biology, Disease and Control is written by an international collection of experts and covers in-depth information on aspects of the biology
Authors
M. Samish, H. S. Ginsberg, I. Glazer
North American Bird Banding and quantitative population ecology
Early bird-banding programs in North America were developed to provide descriptions of bird migration and movement patterns. This initial interest in description quickly evolved into more quantitative interests in two ways. There was (1) interest in quantifying migration and movement patterns, and (2) rapid recognition that re-observations of marked birds provided information about other paramete
Authors
J. D. Nichols, J. Tautin
Roles and contributions of banding organizations to the North American Banding Program
No abstract available.
Authors
S.R. Morris, B. Dale, M. Gustafson
Amphibians of the Neotropical Realm
No abstract available.
Authors
F. Bolaños, F. Castro, C. Cortez, I. De la Riva, T. Grant, B. Hedges, R. Heyer, R. Ibañez, E. La Marca, E. Lavilla, D. Leite Silvano, S. Lotters, G. Parra Olea, S. Reichle, R. Reynolds, L. Rodriguez, G. Santos Barrera, N. Scott, C. Ubeda, A. Veloso, M. Wilkinson, B. Young
Ticks
The most common vector-borne diseases in both Europe and North America are transmitted by ticks. Lyme borreliosis (LB), a tick-borne bacterial zoonosis, is the most highly prevalent. Other important tick-borne diseases include TBE (tick-borne encephalitis) and Crimean-Congo haemorrhagic fever in Europe, Rocky Mountain spotted fever (RMSF) in North America, and numerous less common tick-borne bac
Authors
H. S. Ginsberg, M.K. Faulde
Ecotoxicology: Lead
Lead (Pb) is a naturally occurring metallic element; trace concentrations are found in all environmental media and in all living things. However, certain human activities, especially base metal mining and smelting; combustion of leaded gasoline; the use of Pb in hunting, target shooting, and recreational angling; the use of Pb-based paints; and the uncontrolled disposal of Pb-containing products s
Authors
A.M. Scheuhammer, W. N. Beyer, C. J. Schmitt
Environmental contaminant hazards to wildlife at National Capital region and Mid-Atlantic National Park Service units
Pollutant data for air, water, soil and biota were compiled from databases and internet sources and by staff interviews at 23 National Park Service (NPS) units in 2005. A metric was derived describing the quality and quantity of data for each park, and in combination with known contaminant threats, the need for ecotoxicological study was identified and ranked. Over half of NP units were near Tox
Authors
Barnett A. Rattner, B.K. Ackerson
Bird response to silviculture induced change in forest structure within bottomland hardwood forests
Silvicultural treatments prescribed to encourage development of desired stand structure (i.e., wildlife-forestry) should result in increased abundance of many bird species of management concern, especially species using dense understory habitat. Desired forest conditions within bottomland vary among sites, but average 60-70% overstory canopy that is heterogeneously distributed with >5 dominant tr
Authors
D.J. Twedt, S.G. Somershoe