Potential responses of riparian vegetation to dam removal
P.B. Shafroth, Jonathan M. Friedman, G.T. Auble, M. L. Scott, J.H. Braatne
2002, BioScience (52) 703-712
Throughout the world, riparian habitats have been dramatically modified from their natural condition. Dams are one of the principal causes of these changes, because of their alteration of water and sediment regimes (Nilsson and Berggren 2000). Because of the array of ecological goods and services...
Genetic structure of Columbia River redband trout populations in the Kootenai River drainage, Montana, revealed by microsatellite and allozyme loci
Kathy L. Knudsen, Clint C. Muhlfeld, George K. Sage, Robb F. Leary
2002, Transactions of the American Fisheries Society (131) 1093-1105
We describe the genetic divergence among 10 populations of redband trout Oncorhynchus mykiss gairdneri from the upper Columbia River drainage. Resident redband trout from two watersheds in the Kootenai River drainage and hatchery stocks of migratory Kamloops redband trout from Kootenay Lake, British Columbia, were analyzed using allele frequency data...
Mid-Holocene hydrologic model of the Shingobee watershed, Minnesota
S.K. Filby, Sharon M. Locke, M.A. Person, T. C. Winter, D.O. Rosenberry, J.L. Nieber, W.J. Gutowski, E. Ito
2002, Quaternary Research (58) 246-254
A hydrologifc model of the Shingobee Watershed in north-central Minnesota was developed to reconstruct mid-Holocene paleo-lake levels for Williams Lake, a surface-water body located in the southern portion of the watershed. Hydrologic parameters for the model were first estimated in a calibration exercise using a 9-yr historical record (1990-1998) of...
Preeruptive inflation and surface interferometric coherence characteristics revealed by satellite radar interferometry at Makushin Volcano, Alaska: 1993-2000
Z. Lu, J.A. Power, V.S. McConnell, C. Wicks Jr., D. Dzurisin
2002, Journal of Geophysical Research B: Solid Earth (107) ECV 1-1-ECV 1-13
Pilot reports in January 1995 and geologic field observations from the summer of 1996 indicate that a relatively small explosive eruption of Makushin, one of the more frequently active volcanoes in the Aleutian arc of Alaska, occurred on 30 January 1995. Several independent radar interferograms that each span the time...
Changes in population and agricultural land in conterminous United States counties, 1790 to 1997
Pamela J. Waisanen, Norman B. Bliss
2002, Global Biogeochemical Cycles (16) 84-1-84-19
We have developed a data set of changes in population and agricultural land for the conterminous United States at the county level, resulting in more spatial detail than in previously available compilations. The purpose was to provide data on the timing of land conversion as an input to dynamic models...
How many kilojoules does a Black-billed Magpie nest cost?
T.R. Stanley
2002, Journal of Field Ornithology (73) 292-297
Energetic costs of nest construction are difficult to estimate for birds, and currently estimates are available for only a handful of species. In this paper, I estimate the minimum cost of nest construction by a pair of Black-billed Magpies (Pica hudsonia). Data on the number of sticks and mud pellets...
The growth-temperature relation and preferred temperatures of juvenile lake herring
T.A. Edsall, T.J. Desorcie
2002, Advances in Limnology (57) 335-342
Lake herring, Coregonus artedi, were once extremely abundant in the Great Lakes where they functioned as a major trophic integrator, directly linking the planktonic crustacean resource to lake trout. Salvelinus namaycush. Lake herring populations in the Great Lakes collapsed during the middle third of the 20th century due to overfishing,...
Estimating terrestrial snow depth with the Topex-Poseidon altimeter and radiometer
F. Papa, B. Legresy, N. M. Mognard, E.G. Josberger, F. Remy
2002, IEEE Transactions on Geoscience and Remote Sensing (40) 2162-2169
Active and passive microwave measurements obtained by the dual-frequency Topex-Poseidon radar altimeter from the Northern Great Plains of the United States are used to develop a snow pack radar backscatter model. The model results are compared with daily time series of surface snow observations made by the U.S. National Weather...
Survival models for harvest management of mourning dove populations
David L. Otis
2002, Journal of Wildlife Management (66) 1052-1063
Quantitative models of the relationship between annual survival and harvest rate of migratory game-bird populations are essential to science-based harvest management strategies. I used the best available band-recovery and harvest data for mourning doves (Zenaida macroura) to build a set of models based on different assumptions about compensatory harvest mortality....
Rodent middens, a new method for Quaternary research in arid zones of South America
J.L. Betancourt, B. Saavedra
2002, Revista Chilena de Historia Natural (75) 527-546
In arid and semi-arid regions of South America, historical evidence for climate and vegetation change is scarce despite its importance for determining reference conditions and rates of natural variability in areas susceptible to modern desertification. Normal lines of evidence, such as pollen stratigraphies from lakes, are either rare or unobtainable...
Persistent organic pollutants in murre eggs from the Gulf of Alaska and Bering Sea
John R. Kucklick, Stacy S. Vander Pol, P.R. Becker, Rebecca S. Pugh, Kristin S. Simac, G.W. York, D.G. Rosenau
2002, Conference Paper, Proceedings: 22nd international symposium on halogenated environmental organic pollutants and persistent organic pollutants (POPs)
No abstract available....
Comparison of riparian plant communities under four land management systems in southwestern Wisconsin
L.K. Paine, C. A. Ribic
2002, Agriculture, Ecosystems and Environment (92) 93-105
Riparian plant community composition is influenced by moisture, erosion, original native plant communities, and current and past land use. This study compared riparian plant communities under four types of management: woody buffer strip, grassy buffer strip, rotational grazing, and continuous grazing. Study sites were located along spring-fed streams in the...
Late Quaternary evolution of the San Antonio Submarine Canyon in the central Chile forearc (∼33°S)
Jane Laursen, William R. Normark
2002, Marine Geology (188) 365-390
Hydrosweep swath-bathymetry and seismic-reflection data reveal the morphology, sedimentary processes, and structural controls on the submarine San Antonio Canyon. The canyon crosses the forearc slope of the central Chile margin for more than 150 km before it empties into the Chile Trench near 33°S latitude....
Spatial and temporal deformation along the northern San Jacinto fault, southern California: Implications for slip rates
K.J. Kendrick, D. M. Morton, S. G. Wells, R.W. Simpson
2002, Bulletin of the Seismological Society of America (92) 2782-2802
The San Timoteo badlands is an area of uplift and erosional dissection that has formed as a result of late Quaternary uplift along a restraining bend in the San Jacinto fault, of the San Andreas fault system in southern California. This bend currently is located in a region where late...
Presence of organoarsenicals used in cotton production in agricultural water and soil of the Southern United States
A.J. Bednar, J.R. Garbarino, J. F. Ranville, T.R. Wildeman
2002, Journal of Agricultural and Food Chemistry (50) 7340-7344
Arsenicals have been used extensively in agriculture in the United States as insecticides and herbicides. Mono- and disodium methylarsonate and dimethylarsinic acid are organoarsenicals used to control weeds in cotton fields and as defoliation agents applied prior to cotton harvesting. Because the toxicity of most organoarsenicals is less than that...
Lake evolution of the terminal area of Shiyang River drainage in arid China since the last glaciation
Q. Shi, F.-H. Chen, Y. Zhu, D. Madsen
2002, Quaternary International (93-94) 31-34
Investigations of geomorphology and sedimentology, and analyses of radiocarbon dates, grain size and carbonate of the sediment at the present-dry closed basin in the terminal area of Shiyang River in arid China were conducted to recover the history of palaeolake change since the last glacial. The terminal area was covered...
San Andreas fault zone, California: M≥5.5 earthquake history
Tousson R. Toppozada, D.M. Branum, M.S. Reichle, C.L. Hallstrom
2002, Bulletin of the Seismological Society of America (92) 2555-2601
The San Andreas fault zone has been a very significant source of major California earthquakes. From 1812 to 1906 it generated four major earthquakes of M ∼7 or larger in two pairs on two major portions of the fault. A pair of major earthquakes occurred on the central to southern region, where...
Patterns of food abundance for breeding waterbirds in the San Luis Valley of Colorado
James H. Gammonley, Murray K. Laubhan
2002, Wetlands (22) 499-508
We measured the amount and distribution of macroinvertebrates and seeds in four wetland habitats (short emergent, seasonal open water, semipermanent/permanent open water, and saltgrass [Distichlis spicata]) used by breeding ducks and shorebirds at a wetland complex in the San Luis Valley, Colorado, USA. Density of macroinvertebrates did not differ among...
Aphanomyces invadans in Atlantic Menhaden along the East Coast of the United States
Vicki S. Blazer, J. H. Lilley, W. B. Schill, Y. Kiryu, Christine L. Densmore, V. Panyawachira, S. Chinabut
2002, Journal of Aquatic Animal Health (14) 1-10
The cause of deeply penetrating ulcers of Atlantic menhaden Brevoortia tyrannus has been the subject of significant research efforts in recent years. These lesions and the associated syndrome termed ulcerative mycosis have been observed along the East Coast of the United States since at least the early 1980s. Although Aphanomyces spp. were isolated from...
Feasibility of using 3D acoustic telemetry to assess the response of resident salmonids to strobe lights in Lake Roosevelt, WA
R.W. Perry, M.J. Farley, T.J. Darland, G.S. Hansen, D.H. Feil, D.W. Rondorf, R. LeCaire
2002, Report
Abstract not available ...
Field and laboratory investigations of inactivation of viruses (PRD1 and MS2) attached to iron oxide-coated quartz sand
Joseph N. Ryan, Ronald W. Harvey, David W. Metge, Menachem Elimelech, Theresa Navigato, Ann P. Pieper
2002, Environmental Science & Technology (36) 2403-2413
Field and laboratory experiments were conducted to investigate inactivation of viruses attached to mineral surfaces. In a natural gradient transport field experiment, bacteriophage PRD1, radiolabeled with 32P, was injected into a ferric oxyhydroxide-coated sand aquifer with bromide and linear alkylbenzene sulfonates. In a zone of the aquifer contaminated by secondary...
Evaluate status of coastal cutthroat trout in the Columbia River above Bonneville Dam, Portland, Oregon
P.J. Connolly, C.S. Sharpe, S. Sauter
2002, Report
Abstract not available ...
Predator-prey interactions in The Dalles Dam tailrace
I.N. Duran, T.L. Liedtke, J.H. Petersen
2002, Report
Abstract not available ...
Passage behavior of radio-tagged yearling Chinook salmon and steelhead at Bonneville Dam 2002
S.D. Evans, L.S Wright, C. D. Smith, R.E. Wardell, N.S. Adams, D.W. Rondorf
2002, Report
Abstract not available ...
White sturgeon mitigation and restoration in the Columbia and Snake rivers upstream from Bonneville Dam. Report C
D.M. Gadomski, M.J. Parsley, D.G. Gallion, P. Kofoot
2002, Report
Abstract not available ...
