Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16759
VEMAP Phase 2 bioclimatic database. I. Gridded historical (20th century) climate for modeling ecosystem dynamics across the conterminous USA VEMAP Phase 2 bioclimatic database. I. Gridded historical (20th century) climate for modeling ecosystem dynamics across the conterminous USA
Analysis and simulation of biospheric responses to historical forcing require surface climate data that capture those aspects of climate that control ecological processes, including key spatial gradients and modes of temporal variability. We developed a multivariate, gridded historical climate dataset for the conterminous USA as a common input database for the Vegetation/Ecosystem...
Authors
T.G.F. Kittel, N.A. Rosenbloom, J. Andrew Royle, Christopher Daly, W.P. Gibson, H.H. Fisher, P. Thornton, D.N. Yates, S. Aulenbach, C. Kaufman, R. McKeown, D. Bachelet, D. S. Schimel, R. Neilson, J. Lenihan, R. Drapek, D.S. Ojima, W.J. Parton, J. M. Melillo, D. W. Kicklighter, H. Tian, A. D. McGuire, M.T. Sykes, B. Smith, S. Cowling, T. Hickler, I. C. Prentice, S. Running, K.A. Hibbard, W.M. Post, A.W. King, T. Smith, B. Rizzo, F.I. Woodward
Spatially quantitative seafloor habitat mapping: Example from the northern South Carolina inner continental shelf Spatially quantitative seafloor habitat mapping: Example from the northern South Carolina inner continental shelf
Naturally occurring hard bottom areas provide the geological substrate that can support diverse assemblages of sessile benthic organisms, which in turn, attract many reef-dwelling fish species. Alternatively, defining the location and extent of bottom sand bodies is relevant for potential nourishment projects as well as to ensure that transient sediment does not affect reef habitats...
Authors
G.Y. Ojeda, P. T. Gayes, R. F. Van Dolah, W. C. Schwab
Floodtide pulses after low tides in shallow subembayments adjacent to deep channels Floodtide pulses after low tides in shallow subembayments adjacent to deep channels
In shallow waters surface gravity waves (tides) propagate with a speed proportional to the square root of water depth (c=g(h+η)). As the ratio of free surface displacement to mean depth (η/h) approaches unity the wave will travel noticeably faster at high tide than at low tide, creating asymmetries in the tidal form. This physical process is explained analytically by the increased...
Authors
J.C. Warner, D. H. Schoellhamer, C.A. Ruhl, J.R. Burau
Accuracy of a pulse-coherent acoustic Doppler profiler in a wave-dominated flow Accuracy of a pulse-coherent acoustic Doppler profiler in a wave-dominated flow
The accuracy of velocities measured by a pulse-coherent acoustic Doppler profiler (PCADP) in the bottom boundary layer of a wave-dominated inner-shelf environment is evaluated. The downward-looking PCADP measured velocities in eight 10-cm cells at 1 Hz. Velocities measured by the PCADP are compared to those measured by an acoustic Doppler velocimeter for wave orbital velocities up to 95...
Authors
J.R. Lacy, C. R. Sherwood
Organochlorine pesticides and thiamine in eggs of largemouth bass and American alligators and their relationship with early life-stage mortality Organochlorine pesticides and thiamine in eggs of largemouth bass and American alligators and their relationship with early life-stage mortality
Thiamine deficiency has been linked to early mortality syndrome in salmonids in the Great Lakes. This study was conducted to compare thiamine concentrations in American alligators (Alligator mississippiensis) and Florida largemouth bass (Micropterus salmoides floridanus) eggs from sites with high embryo mortality and high exposure to organochlorine pesticides (OCPs) (Lakes Apopka and...
Authors
M. S. Sepulveda, J.J. Wiebe, D. C. Honeyfield, H.R. Rauschenberger, J. P. Hinterkopf, W.E. Johnson, T. S. Gross
Influence of northwest Pacific productivity on North Pacific Intermediate Water oxygen concentrations during the Bølling-Ållerød interval (14.7-12.9 ka) Influence of northwest Pacific productivity on North Pacific Intermediate Water oxygen concentrations during the Bølling-Ållerød interval (14.7-12.9 ka)
Elevated productivity in the northwest Pacific is suggested as a new possible control driving past intervals of low-O2 intermediate water along the western continental margin of North America. According to this mechanism, O2 consumption would occur near the site of formation of North Pacific Intermediate Water (NPIW), due to increased respiration of organic carbon in response to a high
Authors
John Crusius, Thomas F. Pedersen, Stephanie Kienast, Lloyd D. Keigwin, Laurent Labeyrie
Stress interaction between subduction earthquakes and forearc strike-slip faults: Modeling and application to the northern Caribbean plate boundary Stress interaction between subduction earthquakes and forearc strike-slip faults: Modeling and application to the northern Caribbean plate boundary
Strike-slip faults in the forearc region of a subduction zone often present significant seismic hazard because of their proximity to population centers. We explore the interaction between thrust events on the subduction interface and strike-slip faults within the forearc region using three-dimensional models of static Coulomb stress change. Model results reveal that subduction...
Authors
Uri S. ten Brink, J. Lin
Isolation and characterization of mycobacteria from striped bass Morone saxatilis from the Chesapeake Bay Isolation and characterization of mycobacteria from striped bass Morone saxatilis from the Chesapeake Bay
Mycobacteriosis in striped bass Morone saxatilis of Chesapeake Bay, USA, was first diagnosed in 1997 based on the presence of granulomatous inflammation and acid-fast bacteria in skin and spleen. To confirm histopathology, bacteriological detection and identification of mycobacteria were begun using splenic tissue from fish with and without skin ulcerations. On the basis of initial...
Authors
M. W. Rhodes, H. Kator, I. Kaattari, D. Gauthier, W. Vogelbein, C. A. Ottinger
Role of a large marine protected area for conserving landscape attributes of sand habitats on Georges Bank (NW Atlantic) Role of a large marine protected area for conserving landscape attributes of sand habitats on Georges Bank (NW Atlantic)
Mobile fishing gear reduces seafloor habitat complexity through the removal of structure-building fauna, e.g. emergent organisms that create pits and burrows, as well as by smoothing of sedimentary bedforms (e.g. sand ripples). In this study, we compared the relative abundance of microhabitat features (the scale at which individual fish associate with seafloor habitat) inside and outside...
Authors
J. Lindholm, P. Auster, P. Valentine
The effect of nitrogen loading on a brackish estuarine faunal community: A stable isotope approach The effect of nitrogen loading on a brackish estuarine faunal community: A stable isotope approach
Coastal ecosystems worldwide face increased nutrient enrichment from shoreline and watershed development and atmospheric pollution. We investigated the response of the faunal community of a small microtidal estuary dominated by Ruppia maritima (widgeon grass) in Maine, United States, to increased nitrogen loading using an in situ mesocosm enrichment experiment. Community response was
Authors
R.A. Keats, L.J. Osher, H.A. Neckles
Detection of Ehrlichia chaffeensis in adult and nymphal stage lone star ticks (Amblyomma americanum) from Long Island, New York Detection of Ehrlichia chaffeensis in adult and nymphal stage lone star ticks (Amblyomma americanum) from Long Island, New York
The lone star tick, Amblyomma americanum (L.), has increased in abundance in several regions of the northeastern United States, including areas of Long Island, NY. Adult and nymphal stage A. americanum collected from several sites on Long Island were evaluated for infection with Ehrlichia chaffeensis, the causative agent of human monocytic ehrlichiosis (HME), by using a nested polymerase...
Authors
T.R. Mixson, H. S. Ginsberg, S.R. Campbell, J.W. Sumner, C.D. Paddock
Capture-recapture analysis for estimating manatee reproductive rates Capture-recapture analysis for estimating manatee reproductive rates
Modeling the life history of the endangered Florida manatee (Trichechus manatus latirostris) is an important step toward understanding its population dynamics and predicting its response to management actions. We developed a multi-state mark-resighting model for data collected under Pollock's robust design. This model estimates breeding probability conditional on a female's breeding...
Authors
W. L. Kendall, C.A. Langtimm, C.A. Beck, M.C. Runge