Quantitative morphology of a fringing reef tract from high-resolution laser bathymetry: Southern Molokai, Hawaii
C. D. Storlazzi, J.B. Logan, M.E. Field
2003, Geological Society of America Bulletin (115) 1344-1355
High-resolution Scanning Hydrographic Operational Airborne Lidar Survey (SHOALS) laser-determined bathymetric data were used to define the morphology of spur-and-groove structures on the fringing reef off the south coast of Molokai, Hawaii. These data provide a basis for mapping and analyzing morphology of the reef with a level of precision and...
The impact of a prominent rain shadow on flooding in California's Santa Cruz Mountains: A CALJET case study and sensitivity to the ENSO cycle
F.M. Ralph, P.J. Neiman, D.E. Kingsmill, P.O.G. Persson, A.B. White, E.T. Strem, E.D. Andrews, Ronald C. Antweiler
2003, Journal of Hydrometeorology (4) 1243-1264
Data from the California Land-Falling Jets Experiment (CALJET) are used to explore the causes of variations in flood severity in adjacent coastal watersheds within the Santa Cruz Mountains on 2-3 February 1998. While Pescadero Creek (rural) experienced its flood of record, the adjacent San Lorenzo Creek (heavily populated), attained only...
Response of birds to thinning young Douglas-fir forests
John P. Hayes, Jennifer M. Weikel, Manuela M. P. Huso, Janet L. Erickson
2003, Fact Sheet 033-03
As a result of recent fire history and decades of even-aged forest management, many coniferous forests in western Oregon are composed of young (20-50 yrs), densely stocked Douglas-fir stands. Often these stands are structurally simple - a single canopy layer with one or two overstory tree species - and have a relatively...
Long-term and large-scale perspectives on the relationship between biodiversity and ecosystem functioning
A.J. Symstad, F. S. Chapin III, D.H. Wall, K.L. Gross, L.F. Huenneke, G.G. Mittelbach, Debra P. C. Peters, D. Tilman
2003, BioScience (53) 89-98
In a growing body of literature from a variety of ecosystems is strong evidence that various components of biodiversity have significant impacts on ecosystem functioning. However, much of this evidence comes from short-term, small-scale experiments in which communities are synthesized from relatively small species pools and conditions are highly controlled....
Determination of PCBs in fish using enzyme-linked immunosorbent assay (ELISA)
J.A. Lasrado, C.R. Santerre, J.L. Zajicek, J.R. Stahl, D. E. Tillitt, D. Deardorff
2003, Journal of Food Science (68) 133-136
Polychlorinated biphenyls (PCBs) were determined in fish tissue using an enzyme-linked immunosorbent assay (ELISA). Standard curves for Aroclor 1248, 1254, and 1260 in catfish tissue were developed with ranges from 0.05 to 0.5 ppm and 0.5 to 5.0 ppm. Wild fish were initially analyzed using gas chromatography/electron-capture detection (GC/ECD) and...
Biological soil crusts in deserts: A short review of their role in soil fertility, stabilization, and water relations
Jayne Belnap
2003, Algological Studies (109) 113-126
Cyanobacteria and cyanolichens dominate most desert soil surfaces as the major component of biological soil crusts (BSC). BSCs contribute to soil fertility in many ways. BSC can increase weathering of parent materials by up to 100 times. Soil surface biota are often sticky, and help retain dust falling on the...
Geoarchaeological investigations at the Winger site: A Late Paleoindian bison bonebed in Southwestern Kansas, U.S.A
R.D. Mandel, J.L. Hofman
2003, Geoarchaeology (18) 129-144
The Winger site is a deeply buried Late Paleoindian bison bonebed in a playa basin on the High Plains of midcontinental North America. The site is one of few stratified, Late Paleoindian bison kills recorded in the region. The bonebed is exposed in the bank of an intermittent stream that...
IKONOS geometric characterization
Dennis Helder, Michael Coan, Kevin Patrick, Peter Gaska
2003, Remote Sensing of Environment (88) 69-79
The IKONOS spacecraft acquired images on July 3, 17, and 25, and August 13, 2001 of Brookings SD, a small city in east central South Dakota, and on May 22, June 30, and July 30, 2000, of the rural area around the EROS Data Center. South Dakota State University (SDSU)...
Interpreting tracer breakthrough tailing from different forced-gradient tracer experiment configurations in fractured bedrock
M.W. Becker, A.M. Shapiro
2003, Water Resources Research (39)
Conceptual and mathematical models are presented that explain tracer breakthrough tailing in the absence of significant matrix diffusion. Model predictions are compared to field results from radially convergent, weak-dipole, and push-pull tracer experiments conducted in a saturated crystalline bedrock. The models are based upon the assumption that flow is highly...
Effects of pore‐water ammonia on in situ survival and growth of juvenile mussels (;Lampsilis cardium); in the St. Croix Riverway, Wisconsin, USA
Michelle Bartsch, Teresa J. Newton, John W. Allran, Jonathan A. O’Donnell, William B. Richardson
2003, Environmental Toxicology and Chemistry (22) 2561-2568
We conducted a series of in situ tests to evaluate the effects of pore‐water ammonia on juvenile Lampsilis cardium in the St. Croix River (WI, USA). Threats to this river and its associated unionid fauna have accelerated in recent years because of its proximity to Minneapolis–St. Paul, Minnesota, USA. In 2000, caged...
Polar bear aerial survey in the eastern Chukchi Sea: A pilot study
Thomas J. Evans, Anthony S. Fischbach, Scott L. Schliebe, Bryan Manly, Susanne B. Kalxdorff, Geoff S. York
2003, Arctic (56) 359-366
Alaska has two polar bear populations: the Southern Beaufort Sea population, shared with Canada, and the Chukchi/Bering Seas population, shared with Russia. Currently a reliable population estimate for the Chukchi/Bering Seas population does not exist. Land-based aerial and mark-recapture population surveys may not be possible in the Chukchi Sea because...
Food habits of the southwestern willow flycatcher during the nesting season
Charles A. Drost, Eben H. Paxton, Mark K. Sogge, Mary J. Whitfield
2003, Studies in Avian Biology (26) 103
The food habits and prey base of the endangered Southwestern Willow Flycatcher (Empidonax traillii extimus) are not well known. We analyzed prey remains in 59 fecal samples from an intensively-studied population of this flycatcher at the Kern River Preserve in southern California. These samples were collected during the nesting season...
Developing a coordinated bird monitoring program for the intermountain west
Jonathan Bart
2003, Great Basin Birds (6) 56-62
No abstract available....
Habitat characteristics of polar bear terrestrial maternal den sites in northern Alaska
George M. Durner, Steven C. Amstrup, Anthony S. Fischbach
2003, Arctic (56) 55-62
Polar bears (Ursus maritimus) give birth to and nurture their young in dens of ice and snow. During 1999-2001, we measured the structure of 22 dens on the coastal plain of northern Alaska after polar bear families had evacuated their dens in the spring. During the summers of 2001 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...
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]...
Slip rate and earthquake recurrence along the central Septentrional fault, North American-Caribbean plate boundary, Dominican Republic
C.S. Prentice, P. Mann, L.R. Pena, G. Burr
2003, Journal of Geophysical Research B: Solid Earth (108)
The Septentrional fault zone (SFZ) is the major North American-Caribbean, strike-slip, plate boundary fault at the longitude of eastern Hispaniola. The SFZ traverses the densely populated Cibao Valley of the Dominican Republic, forming a prominent scarp in alluvium. Our studies at four sites along the central SFZ are aimed at...
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....
Fault interactions and large complex earthquakes in the Los Angeles area
Greg Anderson, Brad T. Aagaard, Ken Hudnut
2003, Science (302) 1946-1949
Faults in complex tectonic environments interact in various ways, including triggered rupture of one fault by another, that may increase seismic hazard in the surrounding region. We model static and dynamic fault interactions between the strike-slip and thrust fault systems in southern California. We find that rupture of the Sierra...
Review of techniques to prevent introduction of zebra mussels (Dreissena polymorpha) during native mussel (Unionoidea) conservation activities
W.G. Cope, T.J. Newton, C.M. Gatenby
2003, Journal of Shellfish Research (22) 177-184
Because of the declines in diversity and abundance of native freshwater mussels (superfamily Unionoidea), and the potential decimation of populations of native mussels resulting from the rapid spread of the exotic zebra mussel Dreissena polymorpha, management options to eliminate or reduce the threat of the zebra mussel are needed. Relocating...
Evaluation of airborne topographic lidar for quantifying beach changes
A. H. Sallenger Jr., W.B. Krabill, R.N. Swift, J. Brock, J. List, M. Hansen, R.A. Holman, S. Manizade, J. Sontag, A. Meredith, K. Morgan, J.K. Yunkel, E.B. Frederick, H. Stockdon
2003, Journal of Coastal Research (19) 125-133
A scanning airborne topographic lidar was evaluated for its ability to quantify beach topography and changes during the Sandy Duck experiment in 1997 along the North Carolina coast. Elevation estimates, acquired with NASA's Airborne Topographic Mapper (ATM), were compared to elevations measured with three types of ground-based measurements - 1)...
Geothermal GIS coverage of the Great Basin, USA: Defining regional controls and favorable exploration terrains
M.F. Coolbaugh, D. L. Sawatzky, G.L. Oppliger, T.B. Minor, G. L. Raines, L. Shevenell, G. Blewitt, J.N. Louie
2003, Conference Paper, Transactions - Geothermal Resources Council
A geographic information system (GIS) of geothermal resources, built last year for the state of Nevada, is being expanded to cover the Great Basin, USA. Data from that GIS is being made available to industry, other researchers, and the public via a web site at the Great Basin Center for...
American shad in the Columbia River
J.H. Petersen, R.A. Hinrichsen, D.M. Gadomski, D.H. Feil, D.W. Rondorf
2003, Book chapter, Biodiversity, status, and conservation of the world's shads
American shad Alosa sapidissima from the Hudson River, New York, were introduced into the Sacramento River, California, in 1871 and were first observed in the Columbia River in 1876. American shad returns to the Columbia River increased greatly between 1960 and 1990, and recently 2-4 million adults have been counted...
Studies of the environmental fate and effect of aircraft deicing fluids: Detection of 5-methyl-1H-benzotriazole in the fathead minnow (Pimephales promelas)
Devon A. Cancilla, J.C. Baird, S.W. Geis, Steven R. Corsi
2003, Environmental Toxicology and Chemistry (22) 134-140
This paper presents the results of a number of field and laboratory studies to evaluate the environmental impact of aircraft deicing and anti-icing fluids (ADAFs) on aquatic systems. Both 5-methyl-1H-benzotriazole (5-MeBt) and 4-methyl-1H-benzotriazole (4-MeBt), known additives to ADAFs, were found in whole-tissue extracts from minnows placed downstream of an effluent...
