Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16759
Test for age-specificity in survival of the common tern Test for age-specificity in survival of the common tern
Much effort in life-history theory has been addressed to the dependence of life-history traits on age, especially the phenomenon of senescence and its evolution. Although senescent declines in survival are well documented in humans and in domestic and laboratory animals, evidence for their occurrence and importance in wild animal species remains limited and equivocal. Several recent...
Authors
I.C.T. Nisbet, E. Cam
Potential effects of structural controls and street sweeping on stormwater loads to the lower Charles River, Massachusetts Potential effects of structural controls and street sweeping on stormwater loads to the lower Charles River, Massachusetts
The water quality of the lower Charles River is periodically impaired by combined sewer overflows (CSOs) and non-CSO stormwater runoff. This study examined the potential non-CSO load reductions of suspended solids, fecal coliform bacteria, total phosphorus, and total lead that could reasonably be achieved by implementation of stormwater best management practices, including both...
Authors
Phillip J. Zarriello, Robert F. Breault, Peter K. Weiskel
Wisconsin aeromagnetic and gravity maps and data: A web site for distribution of data Wisconsin aeromagnetic and gravity maps and data: A web site for distribution of data
No abstract available.
Authors
David L. Daniels, Stephen L. Snyder
Investigations of potential bias in the estimation of lambda using Pradel's (1996) model for capture-recapture data Investigations of potential bias in the estimation of lambda using Pradel's (1996) model for capture-recapture data
Pradel's (1996) temporal symmetry model permitting direct estimation and modelling of population growth rate, u i , provides a potentially useful tool for the study of population dynamics using marked animals. Because of its recent publication date, the approach has not seen much use, and there have been virtually no investigations directed at robustness of the resulting estimators. Here...
Authors
James E. Hines, James D. Nichols
Sand wave fields beneath the Loop Current, Gulf of Mexico: Reworking of fan sands Sand wave fields beneath the Loop Current, Gulf of Mexico: Reworking of fan sands
Extensive fields of large barchan-like sand waves and longitudinal sand ribbons have been mapped by deep-towed SeaMARC IA sidescan sonar on part of the middle and lower Mississippi Fan that lies in about 3200 m of water. The area is beneath the strongly flowing Loop Current. The bedforms have not been adequately sampled but probably consist of winnowed siliciclastic-foraminiferal sands...
Authors
Neil H. Kenyon, A.M. Akhmetzhanov, D.C. Twichell
Environmentalism and natural aggregate mining Environmentalism and natural aggregate mining
Sustaining a developed economy and expanding a developing one require the use of large volumes of natural aggregate. Almost all human activity (commercial, recreational, or leisure) is transacted in or on facilities constructed from natural aggregate. In our urban and suburban worlds, we are almost totally dependent on supplies of water collected behind dams and transported through...
Authors
Lawrence J. Drew, William H. Langer, Janet Somerville Sachs
Measuring streamflow in Virginia (2002 revision) Measuring streamflow in Virginia (2002 revision)
The U.S. Geological Survey (USGS), U.S. Department of the Interior, is the Nation's largest Earth-science information agency. Among its many responsibilities, such as map making and providing information on earthquakes and other natural hazards, the USGS provides information on the Nation's water resources. The USGS has collected and analyzed hydrologic (water-related) information for...
Authors
Roger M. Moberg, Karen C. Rice, Eugene D. Powell
Ancient impact structures on modern continental shelves: The Chesapeake Bay, Montagnais, and Toms Canyon craters, Atlantic margin of North America Ancient impact structures on modern continental shelves: The Chesapeake Bay, Montagnais, and Toms Canyon craters, Atlantic margin of North America
Three ancient impact craters (Chesapeake Bay - 35.7 Ma; Toms Canyon - 35.7 Ma; Montagnais - 51 Ma) and one multiring impact basin (Chicxulub - 65 Ma) are currently known to be buried beneath modern continental shelves. All occur on the passive Atlantic margin of North America in regions extensively explored by seismic reflection surveys in the search for oil and gas reserves. We limit...
Authors
C. Wylie Poag, J. B. Plescia, P.C. Molzer
Forty-third supplement to the American Ornithologists' Union Check-list of North American birds Forty-third supplement to the American Ornithologists' Union Check-list of North American birds
This is the second Supplement since publication of the 7th edition of the Check-list of North American Birds (American Ornithologists' Union 1998). It summarizes decisions made by the AOU's Committee on Classification and Nomenclature between 1 January 2000 and 31 December 2001.
Authors
Richard C. Banks, C. Cicero, J.L. Dunn, A.W. Kratter, P.C. Rasmussen, J.V. Remsen, J.D. Rising, D.F. Stotz
Road log and stop descriptions; Day 1, Stop 1; Delaware Water Gap; geologic overview, stratigraphy, structure, formation of the gap, and glacial geology Road log and stop descriptions; Day 1, Stop 1; Delaware Water Gap; geologic overview, stratigraphy, structure, formation of the gap, and glacial geology
No abstract available.
Authors
Jack B. Epstein
Structural relations along the Taconic unconformity between New York, New Jersey, and Pennsylvania Structural relations along the Taconic unconformity between New York, New Jersey, and Pennsylvania
No abstract available.
Authors
Jack B. Epstein, Peter T. Lyttle
Structural geology of the Delaware Water Gap National Recreation Area Structural geology of the Delaware Water Gap National Recreation Area
No abstract available.
Authors
Jack B. Epstein