A comprehensive review of observational and site evaluation data of migrant whooping cranes in the United States, 1943-1999
Jane E. Austin, Amy L. Richert
2001, Report
This report is a comprehensive analysis of existing observational data (1943–99) and site evaluation data (1977–99) for locations used by whooping cranes (Grus americana) during migration through the United States portion of the Wood Buffalo–Aransas flyway. The apparent migration path, as outlined by the distribution of whooping crane observations, is...
Data acquisition
Thomas J. Stohlgren
Mark E. Jensen, Patrick S. Bourgeron, editor(s)
2001, Book chapter, A guidebook for integrated ecological assessments
No abstract available....
Pathology of Amphibia
David E. Green
K.M. Wright, B.R. Whitaker, editor(s)
2001, Book chapter, Amphibian Medicine and Captive Husbandry
The distribution of MVT-related metals in ground water of the Ozark Plateaus region of the United States
Lopaka Lee, Martin B. Goldhaber
2001, Open-File Report 2001-171
No abstract available....
Compilation of post-wildfire runoff-event data from the Western United States
Erica R. Bigio, Susan H. Cannon
2001, Open-File Report 2001-474
No abstract available....
Florida manatees: Perspectives on populations, pain, and protection
Thomas J. O’Shea, Lynn W. Lefebvre, Cathy A. Beck
Leslie A. Dierauf, Frances M. D. Gulland, editor(s)
2001, Book chapter, Handbook of marine mammal Medicine: Health, disease, and rehabilitation
This overview has three related objectives. First, it provides simple documentation, descriptive summaries, and anecdotal accounts that demonstrate the extent to which maiming, and likely pain and suffering, occur in wild manatees as a result of strikes by boats. The chapter calls attention to the issues wounding raises for policy...
MAUP: Modifiable Areal Unit Problem in raster GIS datasets. Raster pixels as modifiable areas
Usery E. Lyn
2001, GIM International (15) 43-45
The Modifiable Areal Unit Problem (MAUP) is a well-studied aspect of geographic phenomena. It is usually associated with socio-economic data collected by census enumeration units. This problem also applies directly to geographic data in raster formats, including both GIS categorical data layers and remotely sensed images. The author briefly provides...
Vertical tectonics in northern Escanaba Trough as recorded by thick late Quaternary turbidites
W. R. Normark, F. Serra
2001, Journal of Geophysical Research B: Solid Earth (106) 13793-13802
Escanaba Trough, the southernmost segment of the Gorda Ridge, is filled by as much as 500 m of late Quaternary turbidite and hemipelagic sediment. Coring at Deep Sea Drilling Project Site 35 and Ocean Drilling Program (ODP) Sites 1037 and 1038 together with 4.5-kHz deep-tow and 3.5-kHz surface-ship seismic reflection...
pH dependence of iron photoreduction in a rocky mountain stream affected by acid mine drainage
Diane M. McKnight, B. A. Kimball, R.L. Runkel
2001, Hydrological Processes (15) 1979-1992
The redox speciation of dissolved iron and the transport of iron in acidic, metal‐enriched streams is controlled by precipitation and dissolution of iron hydroxides, by photoreduction of dissolved ferric iron and hydrous iron oxides, and by oxidation of the resulting dissolved ferrous iron. We examined the...
Conserving large-river fishes: Is the highway analogy an appropriate paradigm?
D.L. Galat, I. Zweimuller
2001, Journal of the North American Benthological Society (20) 266-279
A tenet of the flood pulse concept, the highway analogy, states that the main channel of large floodplain rivers is used by fishes mainly as a route for gaining access to floodplain habitats. We examined this proposition by analyzing habitat use for freshwater fishes in 4 large rivers in the United States...
Earthquake triggering by seismic waves following the landers and hector mine earthquakes
J. Gomberg, P.A. Reasenberg, P. Bodin, R.A. Harris
2001, Nature (411) 462-466
The proximity and similarity of the 1992, magnitude 7.3 Landers and 1999, magnitude 7.1 Hector Mine earthquakes in California permit testing of earthquake triggering hypotheses not previously possible. The Hector Mine earthquake confirmed inferences that transient, oscillatory 'dynamic' deformations radiated as seismic waves can trigger seismicity rate increases, as proposed...
Holocene vegetation history from fossil rodent middens near Arequipa, Peru
C.A. Holmgren, J.L. Betancourt, K.A. Rylander, J. Roque, O. Tovar, H. Zeballos, E. Linares, Jay Quade
2001, Quaternary Research (56) 242-251
Rodent (Abrocoma, Lagidium, Phyllotis) middens collected from 2350 to 2750 m elevation near Arequipa, Peru (16??S), provide an ???9600-yr vegetation history of the northern Atacama Desert, based on identification of >50 species of plant macrofossils. These midden floras show considerable stability throughout the Holocene, with slightly more mesophytic plant assemblages...
Subglacial sediments: A regional geological template for iceflow in West Antarctica
M. Studinger, R.E. Bell, D. D. Blankenship, C. A. Finn, R.A. Arko, D. L. Morse, I. Joughin
2001, Geophysical Research Letters (28) 3493-3496
We use aerogeophysical data to estimate the distribution of marine subglacial sediments and fault-bounded sedimentary basins beneath the West Antarctic Ice Sheet (WAIS). We find that significant ice flow occurs exclusively in regions covered by subglacial sediments. The onsets and lateral margins of ice streams coincide with the limit of...
A method for mapping apparent stress and energy radiation applied to the 1994 Northridge earthquake fault zone-revisited
Art McGarr, Joe B. Fletcher
2001, Geophysical Research Letters (28) 3529-3532
McGarr and Fletcher (2000) introduced a technique for estimating apparent stress and seismic energy radiation associated with small patches of a larger fault plane and then applied this method to the slip model of the Northridge earthquake (Wald et al., 1996). These results must be revised because we did not...
The influence of weather on Golden Eagle migration in northwestern Montana
R.E. Yates, B.R. McClelland, P.T. Mcclelland, C.H. Key, R.E. Bennetts
2001, Journal of Raptor Research (35) 81-90
We analyzed the influence of 17 weather factors on migrating Golden Eagles (Aquila chrysaetos) near the Continental Divide in Glacier National Park, Montana, U.S.A. Local weather measurements were recorded at automated stations on the flanks of two peaks within the migration path. During a total of 506 hr of observation,...
Seismic hazard in Hawaii: High rate of large earthquakes and probabilistics ground-motion maps
F. W. Klein, A.D. Frankel, C.S. Mueller, R. L. Wesson, P. G. Okubo
2001, Bulletin of the Seismological Society of America (91) 479-498
The seismic hazard and earthquake occurrence rates in Hawaii are locally as high as that near the most hazardous faults elsewhere in the United States. We have generated maps of peak ground acceleration (PGA) and spectral acceleration (SA) (at 0.2, 0.3 and 1.0 sec, 5% critical damping) at 2% and...
A geostatistical approach to predicting sulfur content in the Pittsburgh coal bed
W.D. Watson, L.F. Ruppert, L. J. Bragg, S.J. Tewalt
2001, International Journal of Coal Geology (48) 1-22
The US Geological Survey (USGS) is completing a national assessment of coal resources in the five top coal-producing regions in the US. Point-located data provide measurements on coal thickness and sulfur content. The sample data and their geologic interpretation represent the most regionally complete and up-to-date assessment of what is...
Compound-specific carbon isotope analysis of a contaminant plume in Kingsford, Michigan, USA
R. L. Michel, S. R. Silva, B. Bemis, E.M. Godsy, E. Warren
2001, IAHS-AISH Publication 311-316
Compound-specific isotope analysis was used to study a contaminated site near Kingsford, Michigan, USA. Organic compounds at three of the sites studied had similar 13C values indicating that the contaminant source is the same for all sites. At a fourth site, chemical and 13C values had evolved due to microbial...
Expression of connexin 43 mRNA and protein in developing follicles of prepubertal porcine ovaries
C.M. Melton, G.M. Zaunbrecher, G. Yoshizaki, R. Patio, S. Whisnant, A. Rendon, V.H. Lee
2001, Comparative Biochemistry and Physiology, Part B: Biochemistry and Molecular Biology (130) 43-55
A major form of cell-cell communication is mediated by gap junctions, aggregations of intercellular channels composed of connexins (Cxs), which are responsible for exchange of low molecular weight (< 1200 Da) cytosolic materials. These channels are a growing family of related proteins. This study was designed to determine the ontogeny...
Retention of internal anchor tags by juvenile striped bass
M.J. Van Den Avyle, J.E. Wallin
2001, North American Journal of Fisheries Management (21) 656-659
We marked hatchery-reared striped bass Morone saxatilis (145-265 mm total length) with internal anchor tags and monitored retention for 28 months after stocking in the Savannah River, Georgia and South Carolina. Anchor tags (with an 18-mm, T-shaped anchor and 42-mm streamer) were surgically implanted ventrally, and coded wire tags (1...
Summer diving behavior of male walruses in Bristol Bay, Alaska
C.V. Jay, Sean D. Farley, G.W. Garner
2001, Marine Mammal Science (17) 617-631
Pacific walruses (Odobenus rosmarus divergens) make trips from ice or land haul-out sites to forage for benthic prey. We describe dive and trip characteristics from time-depth-recorder data collected over a one-month period during summer from four male Pacific walruses in Bristol Bay, Alaska. Dives were classified into four types. Shallow...
Carbon dynamics within agricultural and native sites in the loess region of Western lowa
K.L. Manies, J.W. Harden, L. Kramer, W.J. Parton
2001, Global Change Biology (7) 545-555
In order to quantify the historical changes in carbon storage that result from agricultural conversion, this study compared the carbon dynamics of two sites in the loess region of Iowa: a native prairie and a cropland. Field data were obtained to determine present-day carbon storage and its variability within a...
Contrasting water quality from paired domestic/public supply wells, central High Plains
B. W. Bruce, G.P. Oelsner
2001, Journal of the American Water Resources Association (37) 1389-1403
Closely located domestic and public supply wells were sampled using identical sampling procedures to allow comparison of water quality associated with well type. Water samples from 15 pairs of wells with similar screened intervals completed in the central High Plains regional aquifer in parts of Kansas, Oklahoma, and Texas were...
Detection of buried targets using a new enhanced very early time electromagnetic (VETEM) prototype system
T.J. Cui, W.C. Chew, A.A. Aydiner, D.L. Wright, D.V. Smith
2001, IEEE Transactions on Geoscience and Remote Sensing (39) 2702-2712
In this paper, numerical simulations of a new enhanced very early time electromagnetic (VETEM) prototype system are presented, where a horizontal transmitting loop and two horizontal receiving loops are used to detect buried targets, in which three loops share the same axis and the transmitter is located at the center...
Characterization of the Mississippian chat in south-central Kansas
W. Lynn Watney, W. J. Guy, Alan Byrne
2001, American Association of Petroleum Geologists Bulletin (85) 85-113
To understand production from low resistivity-high porosity Mississippian chat reservoirs in south-central Kansas it is necessary to understand the nature of deposition and diagenesis, how tectonics is a factor, the lithofacies controls on petrophysical properties, and log response to these properties. The initial mudstones to sponge-spicule wacke-packstones were deposited...
