Morphological impacts of extreme storms on sandy beaches and barriers
R.A. Morton, A. H. Sallenger Jr.
2003, Journal of Coastal Research (19) 560-573
Historical extreme storms that struck the Gulf Coast and Atlantic Coast regions of the United States caused several different styles of morphological response and resulted in a wide range of washover penetration distances. The post- storm erosional responses included dune scarps, channel incisions, and washouts, whereas depositional responses included perched...
Mercury and methylmercury contents in mine-waste calcine, water, and sediment collected from the Palawan Quicksilver mine, Philippines
J. E. Gray, I.A. Greaves, D.M. Bustos, D. P. Krabbenhoft
2003, Conference Paper, Environmental Geology
The Palawan Quicksilver mine, Philippines, produced about 2,900 t of mercury during mining of cinnabar ore from 1953 to 1976. More than 2,000,000 t of mine-waste calcines (retorted ore) were produced during mining, much of which were used to construct a jetty in nearby Honda Bay. Since 1995, high Hg...
Volcanic debris flows in developing countries - The extreme need for public education and awareness of debris-flow hazards
J. J. Major, S. P. Schilling, C.R. Pullinger
Rickenmann D.Chen C.L., editor(s)
2003, Conference Paper, International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings
In many developing countries, volcanic debris flows pose a significant societal risk owing to the distribution of dense populations that commonly live on or near a volcano. At many volcanoes, modest volume (up to 500,000 m 3) debris flows are relatively common (multiple times per century) and typically flow at...
Hankin and Reeves' approach to estimating fish abundance in small streams: Limitations and alternatives
W.L. Thompson
2003, Transactions of the American Fisheries Society (132) 69-75
Hankin and Reeves' (1988) approach to estimating fish abundance in small streams has been applied in stream fish studies across North America. However, their population estimator relies on two key assumptions: (1) removal estimates are equal to the true numbers of fish, and (2) removal estimates are highly correlated with...
A stepwise regression tree for nonlinear approximation: applications to estimating subpixel land cover
C. Huang, J.R.G. Townshend
2003, International Journal of Remote Sensing (24) 75-90
A stepwise regression tree (SRT) algorithm was developed for approximating complex nonlinear relationships. Based on the regression tree of Breiman et al . (BRT) and a stepwise linear regression (SLR) method, this algorithm represents an improvement over SLR in that it can approximate nonlinear relationships and over BRT in that...
A multi-level pore-water sampler for permeable sediments
J.B. Martin, K.M. Hartl, D.R. Corbett, P.W. Swarzenski, J.E. Cable
2003, Journal of Sedimentary Research (73) 128-132
The construction and operation of a multi-level piezometer (multisampler) designed to collect pore water from permeable sediments up to 230 cm below the sediment-water interface is described. Multisamplers are constructed from 1 1/2 inch schedule 80 PVC pipe. One-quarter-inch flexible PVC tubing leads from eight ports at variable depths to a 1 1/2 inch tee fitting at the top of the PVC pipe....
Sampling designs for carnivore scent-station surveys
G.A. Sargeant, Douglas H. Johnson, W. E. Berg
2003, Journal of Wildlife Management (67) 289-299
Scent stations usually are deployed in clusters to expedite data collection and increase the number of stations that can be operated for a given cost. Presumed benefits of cluster sampling may not be realized, however, unless cluster sizes are chosen with respect to sampling variation within and among clusters. To encourage and facilitate the use...
Starvation resistance in lake trout fry
Thomas A. Edsall, Bruce A. Manny, Gregory W. Kennedy
2003, Journal of Great Lakes Research (29) 375-382
Newly hatched fry were acclimated to 7 or 12°C and either fed daily (controls) or denied food for varying lengths of time and then fed daily until the end of the study (day 91 at 7°C and day 43 at 12°C). Growth was reduced by delays in the onset of feeding of 27 or...
Current versus future reproduction: an experimental test of parental investment decisions using nest desertion by mallards (Anas platyrhynchos)
Joshua T. Ackerman, J.M. Eadie
2003, Behavioral Ecology and Sociobiology (54) 264-273
Past investment in offspring may be important in determining a parent's ability to reproduce in the future and, hence, should affect the relative value of current offspring. However, there have been surprisingly few clear tests of whether animals actually adjust parental care in response to diminished opportunities for future reproduction....
Elemental chemistry of four lichen species from the Apostle Islands, Wisconsin, 1987, 1995 and 2001
J. P. Bennett, C. M. Wetmore
2003, Science of the Total Environment (305) 77-86
Four lichen species sampled three times over a 15-year time span at four of the Apostle Islands, Wisconsin were analyzed for 16 chemical elements in order to determine time trends and spatial patterns. Factor analyses of the data revealed that elements associated with soils (Al, Cr, Fe, Na, Ni and...
US Atlantic coast striped bass: Issues with a recovered population
K.J. Hartman, F.J. Margraf
2003, Fisheries Management and Ecology (10) 309-312
Striped bass, Morone saxatilis (Walbaum), is an anadromous species naturally occurring along the US Atlantic coast, which historically supported valuable commercial and recreational fisheries. In response to a near order-of-magnitude decline in landings, the Atlantic States Marine Fisheries Commission enacted a management plan in 1981 protecting fish until they could...
Approaches to developing sediment quality guidelines for PAHs: Chapter 17
David R. Mount, Christopher G. Ingersoll, Joy A. McGrath
2003, Book chapter, PAHs: An ecotoxicological perspective
No abstract available....
Sulfur geochemistry of hydrothermal waters in Yellowstone National Park, Wyoming, USA. III. An anion-exchange resin technique for sampling and preservation of sulfoxyanions in natural waters
G.K. Druschel, M.A.A. Schoonen, D.K. Nordstorm, J.W. Ball, Y. Xu, C.A. Cohn
2003, Geochemical Transactions (4) 12-19
A sampling protocol for the retention, extraction, and analysis of sulfoxyanions in hydrothermal waters has been developed in the laboratory and tested at Yellowstone National Park and Green Lake, NY. Initial laboratory testing of the anion-exchange resin Bio-Rad??? AG1-X8 indicated that the resin was well suited for the sampling, preservation,...
The Sohagpur Coalfield Project - A collaborative study of potential coking coal resources by the Geological Survey of India and the U.S. Geological Survey
Robert C. Milici, Abhijit Mukhopadhyay, Peter D. Warwick, S. Adhikari, Edwin R. Landis, S.K. Mukhopadhyay
Ajoy K. Ghose, L.K. Bose, editor(s)
2003, Conference Paper, Mining in the 21st century - Quo vadis? Proceedings of the 19th World Mining Congress
The Geological Survey of India (GSI), Coal Wing, and the U.S. Geological Survey (USGS), Energy Resources Team, conducted a collaborative study of the potential for coking coal resources within the Sohagpur coalfield, Madhya Pradesh, India from 1995 to 2001. The coalfield is located within an extensional basin that contains Permian-...
Assessment of sampling methods to estimate horseshoe crab (Limulus polyphemus L.) egg density in Delaware Bay
P.S. Pooler, D. R. Smith, R.E. Loveland, M.L. Botton, S.F. Michels
2003, Fishery Bulletin (101) 698-703
[No abstract available]...
Geology of the Ivanhoe Hg-Au district, northern Nevada: Influence of Miocene volcanism, lakes, and active faulting on epithermal mineralization
A. R. Wallace
2003, Economic Geology (98) 409-424
The mercury-gold deposits of the Ivanhoe mining district in northern Nevada formed when middle Miocene rhyolitic volcanism and high-angle faulting disrupted a shallow lacustrine environment. Sinter and replacement mercury deposits formed at and near the paleosurface, and disseminated gold deposits and high-grade gold-silver veins formed beneath the hot spring deposits. The lacustrine environment provided abundant meteoric water; the rhyolites heated the water; and...
The importance of spatial scale in the modeling of aquatic ecosystems: Chapter 24
Donald L. DeAngelis, Wolf M. Mooij, A. Basset
2003, Book chapter, Handbook of scaling methods in aquatic ecology: Measurement, analysis, simulation
No abstract available...
Modeling manatee response to restoration in the Everglades and Ten Thousand Islands
Bradley Stith, James P. Reid, Dean E. Easton, Susan M. Butler
2003, Conference Paper, Proceedings of Joint Conference on the Science and Restoration of the Greater Everglades and Florida Bay Ecosystem, April 13-18, 2003, Palm Harbor, Florida
No abstract available....
A media-based assessment of damage and ground motions from the January 26th, 2001 M 7.6 Bhuj, India earthquake
Susan E. Hough, Stacey Martin, Roger Bilham, Gail M. Atkinson
2003, Journal of Earth System Science (112) 353-373
We compiled available news and internet accounts of damage and other effects from the 26th January, 2001, Bhuj earthquake, and interpreted them to obtain modified Mercalli intensities at over 200 locations throughout the Indian subcontinent. These values are used to map the intensity distribution using a simple mathematical interpolation method....
Migration and thermoregulation strategies of hoary bats (Lasiurus cinereus) in North America
Paul M. Cryan
2003, Thesis
No abstract available....
Possible Juventae Chasma subice volcanic eruptions and Maja Valles ice outburst floods on Mars: Implications of Mars Global surveyor crater densities, geomorphology, and topography
M. G. Chapman, M.T. Gudmundsson, A.J. Russell, T.M. Hare
2003, Journal of Geophysical Research E: Planets (108) 2-1
This article discusses image, topographic, and spectral data from the Mars Global Surveyor (MGS) mission that provide new information concerning the surface age, geomorphology, and topography of the Juventae Chasma/Maja Valles system. Our study utilizes data from two instruments on board MGS: images from the Mars Orbiter Camera (MOC) and...
Distribution and characteristics of Southwestern Willow Flycatcher breeding sites and territories: 1993 - 2001
Mark K. Sogge, Susan J. Sferra, Tracy McCarthey, Sartor O. Williams, Barbara E. Kus
2003, Studies in Avian Biology (26) 5-11
No abstract available....
Evaluating the post-release success of rehabilitated manatees in Florida, 1973-2002
R. Bonde, L. Keith, L. Ward, J. Reid, T. Pitchford, C. Deutsch, M. Ross, J. Valade, N. Adimey
2003, Conference Paper
Abstract not supplied at this time...
Summary of recent research in Long Valley Caldera, California
M.L. Sorey, V.S. McConnell, E. Roeloffs
2003, Journal of Volcanology and Geothermal Research (127) 165-173
Since 1978, volcanic unrest in the form of earthquakes and ground deformation has persisted in the Long Valley caldera and adjacent parts of the Sierra Nevada. The papers in this special volume focus on periods of accelerated seismicity and deformation in 1980, 1983, 1989-1990, and 1997-1998 to delineate relations between...
Epizootiology and histopathology of Parvicapsula sp. in coho salmon Oncorhynchus kisutch
William T. Yasutake, Diane G. Elliott
2003, Diseases of Aquatic Organisms (56) 215-221
The epizootiology and histopathology of the myxosporean Parvicapsula sp. was studied during monthly health surveys of 4 groups of coho salmon Oncorhynchus kisutch at a commercial farm in Puget Sound, Washington, USA, from 1984 to 1986. No Parvicapsula sp. was detected in histological samples taken from juvenile fish in fresh water, but the parasite was detected...
