Mark K. Sogge, J.C. Owen, Eben H. Paxton, S.M. Langridge
2001, Western Birds (32) 167-172
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Page 3078, results 76926 - 76950
Publication Extents
Not all publications have extents, not all extents are completely accurateHarry R. Carter, Ulrich W. Wilson, Roy W. Lowe, M.S. Rodway, David Allen Manuwal, Jean E. Takekawa, Julie L. Yee
David Allen Manuwal, Harry R. Carter, Tara S. Zimmerman, Dennis L. Orthmeyer, editor(s)
2001, Information and Technology Report 2000-0012-2
Population trends for the common murre (Uria aalge californica) were determined from available whole-colony counts of murres in California, Oregon, Washington, and British Columbia from 1800 to 1995.From 1800 to 1978, historical counts were sporadic and not standardized. From 1979 to 1995, standardized whole-colony counts from aerial photographs were conducted...
J. Garcia-Hernandez, Kirk A. King, A.L. Velasco, E. Shumilin, M.A. Mora, E. P. Glenn
2001, Journal of Arid Environments (49) 65-89
Concentrations of selenium (Se) in bottom material ranged from 0.6 to 5.0 μg g−1, and from 0.5 to 18.3 μg g−1in biota; 23% of samples exceeded the toxic threshold. Concentrations of DDE in biota exceeded the toxic threshold in 30% of the samples. Greater concentrations of selenium in biota were...
F. A. Fitzpatrick
Hayes D.F.Hayes D.F., editor(s)
2001, Conference Paper, Proceedings of the 2001 Wetlands Engineering and River Restoration Conference
A geomorphic study for North Fish Creek, a northern Wisconsin tributary to Lake Superior was analyzed to determine the hydrologic and geomorphic changes caused by clear-cut logging and agricultural activity. Discharge magnitude estimated with HEC-2 for full-channel capacities indicate that modern full-channel discharges are about twice as large as pre-1946...
Diane E. Moore, S. Hickman, D.A. Lockner, P.F. Dobson
2001, Geological Society of America Bulletin (113) 1179-1192
Detailed study of core samples of silicic tuff recovered from three geothermal wells along the strike-slip Great Sumatran fault zone near Silangkitang, North Sumatra, supports a model for enhanced hydrothermal circulation adjacent to this major plate-boundary fault. Two wells (A and C) were drilled nearly vertically ∼1 km southwest of...
L. Keszthelyi, A. S. McEwen, C. B. Phillips, M. Milazzo, P. Geissler, E. P. Turtle, J. Radebaugh, D.A. Williams, D.P. Simonelli, H.H. Breneman, K.P. Klaasen, G. Levanas, T. Denk, Galileo SSI Team
2001, Journal of Geophysical Research E: Planets (106) 33025-33052
The Solid-State Imaging (SSI) instrument provided the first high- and medium-resolution views of Io as the Galileo spacecraft closed in on the volcanic body in late 1999 and early 2000. While each volcanic center has many unique features, the majority can be placed into one of two...
A. M. Hohnstock-Ashe, S.M. Plummer, R. M. Yager, P. Baveye, E.L. Madsen
2001, Environmental Science & Technology (35) 4449-4456
A recent article presented geochemical and microbial evidence establishing metabolic adaptation to and in-situ reductive dechlorination of trichloroethene (TCE) in a fractured dolomite aquifer. This study was designed to further explore site conditions and microbial populations and to explain previously reported enhancement of reductive dechlorination by the addition of pulverized...
R. Stottlemyer
2001, Journal of Environmental Quality (30) 1990-1998
Since 1950, mean annual temperatures in northwestern Alaska have increased. Change in forest floor and soil temperature or moisture could alter N mineralization rates, production of dissolved organic carbon (DOC) and organic nitrogen (DON), and their export to the aquatic ecosystem. In 1990, we began study of nutrient cycles in...
Hugh H. Kieffer, Timothy N. Titus
2001, Icarus (154) 162-180
The Mars Global Surveyor thermal emission spectrometer has made observations of Mars' north polar region for nearly a full martian year. Measurements of bolometric emission and reflectance, as well as brightness temperatures in specific bands synthesized from thermal radiance spectra, are used to track the behavior of surface and atmospheric temperatures, the...
S.L. Beauvais, S.B. Jones, J.T. Parris, S.K. Brewer, E. E. Little
2001, Ecotoxicology and Environmental Safety (49) 84-90
Pesticides and heavy metals are common environmental contaminants that can cause neurotoxicity to aquatic organisms, impairing reproduction and survival. Neurotoxic effects of cadmium and carbaryl exposures were estimated in larval rainbow trout (RBT; Oncorhynchus mykiss) using changes in physiological endpoints and correlations with behavioral responses. Following exposures, RBT were videotaped...
Water Resources Division, U.S. Geological Survey
2001, Report
A list of USGS publications and articles by U.S. Geological Survey personnel in non-U.S. Geological Survey journals and books that were published in July to September of the year 2001....
C.-C. Huang, Y.-H. Lee, Huaibao P. Liu, D. K. Keefer, R.W. Jibson
2001, Bulletin of the Seismological Society of America (91) 953-958
The 1999 Chi-Chi, Taiwan, earthquake triggered numerous landslides throughout a large area in the Central Range, to the east, southeast, and south of the fault rupture. Among them are two large rock avalanches, at Tsaoling and at Jih-Feng-Erh-Shan. At Jih-Feng-Erh-Shan, the entire thickness (30-50 m) of the Miocene Changhukeng Shale...
J.S. Stewart, L. Wang, J. Lyons, J.A. Horwatich, R. Bannerman
2001, Journal of the American Water Resources Association (37) 1475-1487
Multivariate analyses and correlations revealed strong relations between watershed and riparian-corridor land cover, and reach-scale habitat versus fish and macroinvertebrate assemblages in 38 warmwater streams in eastern Wisconsin. Watersheds were dominated by agricultural use, and ranged in size from 9 to 71 km2 Watershed land cover was summarized from satellite-derived data...
D.G. Elliott, R.J. Pascho
2001, Journal of Aquatic Animal Health (13) 181-193
Binary coded wire tags (CWTs) are used extensively for identification and management of anadromous salmonid populations. A study of bacterial kidney disease (BKD) in two brood year groups of hatchery-reared spring chinook salmon Oncorhynchus tshawytscha provided strong evidence that horizontal transmission of Renibacterium salmoninarum, the causative agent of BKD, might...
M.W. Davis, B.L. Olla, C.B. Schreck
2001, Journal of Fish Biology (58) 1-15
In a series of laboratory studies designed to simulate bycatch processes, sablefish Anoplopoma fimbria were either hooked for up to 24 h or towed in a net for 4 h and then subjected to an abrupt transfer to elevated sea water temperature and air. Mortality did not result from hooking...
A. Frankel, D. Carver, E. Cranswick, T. Bice, R. Sell, S. Hanson
2001, Bulletin of the Seismological Society of America (91) 1-12
We installed a dense array of 41 digital seismographs in San Jose, California, to evaluate in detail the effects of a deep sedimentary basin and shallow sedimentary deposits on earthquake ground motions. This urban array is located near the eastern edge of the Santa Clara Valley and spans the Evergreen...
C.R. Tobias, J. W. Harvey, I.C. Anderson
2001, Limnology and Oceanography (46) 604-615
Because groundwater discharge along coastal shorelines is often concentrated in zones inhabited by fringing wetlands, accurately estimating discharge is essential for understanding its effect on the function and maintenance of these ecosystems. Most previous estimates of groundwater discharge to coastal wetlands have been temporally limited and have used only a...
Anthony J. Tesoriero, F.E. Loffler, H. Liebscher
2001, Environmental Science & Technology (35) 455-461
A shallow aquifer with different redox zones overlain by intensive agricultural activity was monitored for the occurrence of 1,2-dichloropropane (DCP) to assess the fate and origin of this pollutant. DCP was detected more frequently in groundwater samples collected in aerobic and nitrate-reducing zones than those collected from iron-reducing zones. Simulated...
Marsha A. Sovada, R. Michael Anthony, Bruce D.J. Batt
2001, Wildlife Society Bulletin (29) 6-15
Predation is a natural component of waterfowl population biology, but environmental alterations have changed the magnitude and importance of predation on waterfowl breeding areas. We reviewed the status of waterfowl populations, adaptations of waterfowl that minimize impacts of predation, and the impacts of predation on waterfowl populations in 2 major...
James Landmeyer
2001, International Journal of Phytoremediation (3) 61-85
At contaminated groundwater sites, poplar trees can be used to affect ground-water levels, flow directions, and ultimately total groundwater and contaminant flux to areas downgradient of the trees. The magnitude of the hydrologic changes can be monitored using fundamental concepts of groundwater hydrology, in addition to plant physiology-based approaches, and...
R. Donohue, W.A. Davidson, N.E. Peters, S. Nelson, B. Jakowyna
2001, Hydrological Processes (15) 2411-2434
Temporal wet-season trends from 1987 to 1998 of total N and total P concentrations (TN and TP, respectively) in 14 tributaries to the Swan-Canning Estuary in Western Australia were evaluated using the Mann-Kendall or Seasonal kendall tests. Six of the catchments drained clay soils primarily on the Darling Plateau, which...
Brad Griffith, David C. Douglas, Donald E. Russell, Robert G. White, Thomas R. McCabe, Kenneth R. Whitten
Rhys E. Green, Mike Harley, Mark Spalding, Christoph Zockler, editor(s)
2001, Book chapter, Impacts of climate change on wildlife
Migratory Barren-Ground Caribou Rangifer tarandus granti are the most important subsistence resource for northern indigenous peoples. They are likely to respond to global climatic changes that affect the distribution of their forage resources and the availability of forage through the year. The Porcupine Caribou herd is a large, internationally migratory...
J.W. Beeman, A.G. Maule
2001, North American Journal of Fisheries Management (21) 455-463
The amount of time radio-tagged juvenile spring chinook salmon Oncorhynchus tshawytscha and juvenile steelhead O. mykiss spent within a gatewell and the juvenile collection channel at McNary Dam, Columbia River, USA, was measured to determine the diel passage behavior and residence times within these portions of the juvenile bypass system....
Roderick F. Ortiz, Sheryl A. Ferguson
2001, Water-Resources Investigations Report 2000-4170
A comprehensive water-quality sampling network was implemented by the U.S. Geological Survey from 1995 through 1997 at 12 tributary sites to the Alamosa River. The network was designed to address data gaps identified in the initial ecological risk assessment of the Summitville Superfund site. Tributaries draining hydrothermally altered areas had...
Jonathan Bart, Daniel S. Battaglia, Nathan R. Senner
2001, Journal of Field Ornithology (72) 521-526
Effects of color bands on adult birds have been investigated in many studies, but much less is known about the effects of bands on birds banded at hatch. We captured Semipalmated Sandpiper (Calidris pusilla) chicks at hatch on the Alaskan North Slope and attached 0–3 bands to them. The chicks...