Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16731
The issue of scale in selecting and designing biological reserves The issue of scale in selecting and designing biological reserves
No abstract available.
Authors
J. M. Scott, E. A. Norse, H. Arita, A. Dobson, J. A. Estes, M.S. Foster, B. Gilbert, D.B. Jesen, R.L. Knight, D. Mattson, M. E. Soule
Present and future of scientific bird ringing Present and future of scientific bird ringing
In 1999 scientific bird ringing will celebrate its first century of existence. Started mainly to investigate bird movements, bird ringing has become a much more flexible method to study different aspects of bird biology. Bird ringing can only be properly organised if an effective international co-operation exists. In Europe, this co-ordination is ensured by EURING, made of 35 national...
Authors
F. Spina, J. Tautin
Characterization of mine waste at the Elizabeth Copper Mine, Orange County, Vermont Characterization of mine waste at the Elizabeth Copper Mine, Orange County, Vermont
No abstract available.
Authors
J. M. Hammarstrom, A. L. Meier, J.C. Jackson, Ryan Barden, P.J. Wormington, J.D. Wormington, R.R. Seal
Analysis of geophysical logs, at North Penn Area 6 Superfund Site, Lansdale, Montgomery County, Pennsylvania Analysis of geophysical logs, at North Penn Area 6 Superfund Site, Lansdale, Montgomery County, Pennsylvania
The U.S. Geological Survey (USGS), as part of technical assistance to the U.S. Environmental Protection Agency (USEPA), collected borehole geophysical log data in 34 industrial, commercial, and public supply wells and 28 monitor wells at the North Penn Area 6 Superfund Site, in Lansdale, Pa., from August 22, 1995, through August 29, 1997. The wells range in depth from 50 to 1,027 feet...
Authors
Randall W. Conger
Calculation and error analysis of a digital elevation model of Hofsjokull, Iceland, from SAR interferometry Calculation and error analysis of a digital elevation model of Hofsjokull, Iceland, from SAR interferometry
Two ascending European Space Agency (ESA) Earth Resources Satellites (ERS)-1/-2 tandem-mode, synthetic aperture radar (SAR) pairs are used to calculate the surface elevation of Hofsjokull, an ice cap in central Iceland. The motion component of the interferometric phase is calculated using the 30 arc-second resolution USGS GTOPO30 global digital elevation product and one of the ERS tandem...
Authors
Jonathan S. Barton, Dorothy K. Hall, Oddur Sigurdsson, Richard S. Williams, Laurence C. Smith, James B. Garvin
Anatomy of the Dead Sea transform: Does it reflect continuous changes in plate motion? Anatomy of the Dead Sea transform: Does it reflect continuous changes in plate motion?
A new gravity map of the southern half of the Dead Sea transform offers the first regional view of the anatomy of this plate boundary. Interpreted together with auxiliary seismic and well data, the map reveals a string of subsurface basins of widely varying size, shape, and depth along the plate boundary and relatively short (25–55 km) and discontinuous fault segments. We argue that this...
Authors
Uri S. ten Brink, M. Rybakov, A. S. Al-Zoubi, M. Hassouneh, U. Frieslander, A.T. Batayneh, V. Goldschmidt, M.N. Daoud, Y. Rotstein, J.K. Hall
Plate deformation at depth under northern California: Slab gap or stretched slab? Plate deformation at depth under northern California: Slab gap or stretched slab?
Plate kinematic interpretations for northern California predict a gap in the underlying subducted slab caused by the northward migration of the Pacific-North America-Juan de Fuca triple junction. However, large-scale decompression melting and asthenospheric upwelling to the base of the overlying plate within the postulated gap are not supported by geophysical and geochemical observations...
Authors
Uri S. ten Brink, N. Shimizu, P.C. Molzer
Hosts of Pyganodon cataracta (eastern floater) and Strophitus undulatus (squawfoot) from the Upper Susquehanna River basin, Pennsylvania Hosts of Pyganodon cataracta (eastern floater) and Strophitus undulatus (squawfoot) from the Upper Susquehanna River basin, Pennsylvania
No abstract available at this time
Authors
E. van Snik Gray, W.A. Lellis, J. C. Cole, C.S. Johnson
Clathrate eustasy: Methane hydrate melting as a mechanism for geologically rapid sea-level fall Clathrate eustasy: Methane hydrate melting as a mechanism for geologically rapid sea-level fall
Although submarine methane hydrates or clathrates have been highlighted as potential amplifiers of modern global climate change and associated glacio-eustatic sea-level rise, their potential role in sea-level fall has not been appreciated. Recent estimates of the total volume occupied by gas hydrates in marine sediments vary 20-fold, from 1.2 × 1014 to 2.4 × 1015 m3. Using a specific...
Authors
J.F. Bratton
A review of early mortality syndrome (EMS) Great Lakes salmonids: relationship with thiamine deficiency A review of early mortality syndrome (EMS) Great Lakes salmonids: relationship with thiamine deficiency
No abstract available.
Authors
J.D. Fitzsimons, S.B. Brown, D. C. Honeyfield, J.G. Hnath
Channel catfish response to ultraviolet-B radiation Channel catfish response to ultraviolet-B radiation
Fingerling channel catfish Ictalurus punctatus exposed to simulated ultraviolet-B radiation at an average daily dose of 2.9 J/cm2 were quite sensitive to the radiation. After a 24-h exposure, thinning of the most dorsal epidermis frequently was accompanied by edema. Compared with epidermis of unexposed fish, mucous cells in exposed fish were less superficial and club cells were less...
Authors
M. S. Ewing, V. S. Blazer, D. L. Fabacher, E. E. Little, K. M. Kocan