Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16746
Predicting bird response to alternative management scenarios on a ranch in Campeche, Mexico Predicting bird response to alternative management scenarios on a ranch in Campeche, Mexico
We developed models to predict the potential response of wintering Neotropical migrant and resident bird species to alternative management scenarios, using data from point counts of birds along with habitat variables measured or estimated from remotely sensed data in a Geographic Information System. Expected numbers of occurrences at points were calculated for 100 species of birds, under...
Authors
P.A. Wood, D.K. Dawson, J.R. Sauer, M.H. Wilson
Residential street-dirt accumulation rates and chemical composition, and removal efficiencies by mechanical- and vacuum-type sweepers, New Bedford, Massachusetts, 2003-04 Residential street-dirt accumulation rates and chemical composition, and removal efficiencies by mechanical- and vacuum-type sweepers, New Bedford, Massachusetts, 2003-04
No abstract available.
Authors
Robert F. Breault, Kirk P. Smith, Jason R. Sorenson
Delineation of surf scoter habitat in Chesapeake Bay, Maryland: macrobenthic and sediment composition of surf scoter feeding sites Delineation of surf scoter habitat in Chesapeake Bay, Maryland: macrobenthic and sediment composition of surf scoter feeding sites
Surveys of surf scoters (Melanitta perspicillata) along the Atlantic coast of the United States have shown population declines in recent decades. The Chesapeake Bay has traditionally been a key wintering area for surf scoters. Past and present research has shown that bivalves constitute a major food item for seaducks in the Chesapeake Bay, with surf scoters feeding primarily on hooked...
Authors
D.M. Kidwell, Matthew C. Perry
Use of survey data to define regional and local priorities for management on National Wildlife Refuges Use of survey data to define regional and local priorities for management on National Wildlife Refuges
National Wildlife Refuges must manage habitats to support a variety of species that often have conflicting needs. To make reasonable management decisions, managers must know what species are priorities for their refuges and the relative importance of the species. Unfortunately, species priorities are often set regionally, but refuges must develop local priorities that reconcile regional
Authors
J.R. Sauer, John F. Casey, H. Laskowski, J.D. Taylor, J. Fallon
Wetland restoration and birds: lessons from Florida, San Francisco Bay, and Chesapeake Bay Wetland restoration and birds: lessons from Florida, San Francisco Bay, and Chesapeake Bay
Many wetland restoration projects are underway across the North American landscape, ranging from small, community - based projects of less than 1 ha, to thousands of ha, as in San Francisco Bay or the Everglades. The goals of small projects are generally focused on replanting and sustaining native wetland vegetation, while larger projects often incorporate populations of birds and other
Authors
R.M. Erwin, P. C. Frederick
Oceanic Pb-isotopic sources of Proterozoic and Paleozoic volcanogenic massive sulfide deposits on Prince of Wales Island and vicinity, southeastern Alaska Oceanic Pb-isotopic sources of Proterozoic and Paleozoic volcanogenic massive sulfide deposits on Prince of Wales Island and vicinity, southeastern Alaska
Volcanogenic massive sulfide (VMS) deposits on Prince of Wales Island and vicinity in southeastern Alaska are associated with Late Proterozoic through Cambrian volcanosedimentary rocks of the Wales Group and with Ordovician through Early Silurian felsic volcanic rocks of the Moira Sound unit (new informal name). The massive sulfide deposits in the Wales Group include the Big Harbor...
Authors
Robert A. Ayuso, Susan M. Karl, John F. Slack, Peter J. Haeussler, Peter E. Bittenbender, Gregory A. Wandless, Anna Colvin
Sidescan-sonar imagery and surficial geologic interpretation of the sea floor off Bridgeport, Connecticut Sidescan-sonar imagery and surficial geologic interpretation of the sea floor off Bridgeport, Connecticut
No abstract available.
Authors
Elizabeth Beaulieu, L.J. Poppe, V.F. Paskevich, E. F. Doran, B.E. Chauveau, J.M. Crocker, A. L. Beaver, P.T. Schattgen
Early to middle Jurassic salt in Baltimore Canyon trough Early to middle Jurassic salt in Baltimore Canyon trough
A pervasive, moderately deep (5-6 s two-way traveltime), high-amplitude reflection is traced on multichannel seismic sections over an approximately 7500 km² area of Baltimore Canyon Trough. The layer associated with the reflection is about 25 km wide, about 60 m thick in the center, and thins monotonically laterally, though asymmetrically, at the edges. Geophysical characteristics are...
Authors
B. Ann McKinney, Myung W. Lee, Warren F. Agena, C. Wylie Poag
Simulating the evolution of coastal morphology and stratigraphy with a new morphological-behaviour model (GEOMBEST) Simulating the evolution of coastal morphology and stratigraphy with a new morphological-behaviour model (GEOMBEST)
A new morphological-behaviour model is used to simulate evolution of coastal morphology associated with cross-shore translations of the shoreface, barrier, and estuary. The model encapsulates qualitative principles drawn from established geological concepts that are parameterized to provide quantitative predictions of morphological change on geological time scales (order 10 3 years), as...
Authors
D. Stolper, J. H. List, E.R. Thieler
Toxic Alexandrium blooms in the western Gulf of Maine: The plume advection hypothesis revisited Toxic Alexandrium blooms in the western Gulf of Maine: The plume advection hypothesis revisited
The plume advection hypothesis links blooms of the toxic dinoflagellate Alexandrium fundyense in the western Gulf of Maine (GOM) to a buoyant plume derived from river outflows. This hypothesis was examined with cruise and moored-instrument observations in 1993 when levels of paralytic shellfish poisoning (PSP) toxins were high, and in 1994 when toxicity was low. A coupled physical...
Authors
D.M. Anderson, B.A. Keafer, W.R. Geyer, R. P. Signell, T.C. Loder
Wallace and Savage: heroes, theories, and venomous snake mimicry Wallace and Savage: heroes, theories, and venomous snake mimicry
No abstract available.
Authors
H.W. Greene, R.W. McDiarmid
The herpetofauna of the Guayana Highlands: amphibians and reptiles of the Lost World The herpetofauna of the Guayana Highlands: amphibians and reptiles of the Lost World
No abstract available.
Authors
R.W. McDiarmid, M.A. Donnelly