Progress made in understanding Mount Rainier's hazards
T. W. Sisson, J.W. Vallance, P. T. Pringle
2001, Eos, Transactions, American Geophysical Union (82) 113-120
At 4392 m high, glacier-clad Mount Rainier dominates the skyline of the southern Puget Sound region and is the centerpiece of Mount Rainier National Park. About 2.5 million people of the greater Seattle-Tacoma metropolitan area can see Mount Rainier on clear days, and 150,000 live in areas swept by lahars...
Water quality assessment of the Eastern Iowa Basins: Basic water chemistry of rivers and streams, 1996-98
Kimberlee K. Barnes
2001, Conference Paper, Proceedings of the Agriculture and the Environment: State and Federal Water Initiatives Conference
The U.S. Geological Survey began data-collection activities in the Eastern Iowa Basins study unit of the National Water-Quality Assessment Program in September 1995 with the purpose of determining the status and trends in water quality of water from the Wapsipinicon, Cedar, Iowa, and Skunk River basins. From March 1996 through...
Lithologies of the basement complex (Devonian and older) in the National Petroleum Reserve - Alaska
Julie A. Dumoulin
David W. Houseknecht, editor(s)
2001, SEPM Core Workshop Notes (21) 201-214
Rocks of the basement complex (Devonian and older) were encountered in at least 30 exploratory wells in the northern part of the NPRA. Fine-grained, variably deformed sedimentary rocks deposited in a slope or basinal setting predominate and include varicolored (mainly red and green) argillite in the Simpson area, dark argillite...
Geographic variation of PCB congeners in polar bears (Ursus maritimus) from Svalbard east to the Chukchi Sea
M. Andersen, E. Lie, A.E. Derocher, S.E. Belikov, A. Bernhoft, Andrei N. Boltunov, G.W. Garner, J.U. Skaare, Øystein Wiig
2001, Polar Biology (24) 231-238
We present data on geographic variation in polychlorinated biphenyl (PCB) congeners in adult female polar bears (Ursus maritimus) from Svalbard eastward to the Chukchi Sea. Blood samples from 90 free-living polar bears were collected in 1987–1995. Six PCB congeners, penta to octa chlorinated (PCB-99, -118, -153, -156, -180,...
Reconnaissance geology north of the Hoholitna River, Taylor Mountains D-1 1:63,360-scale quadrangle, southwestern Alaska: A section in Geological studies in Alaska by the U.S. Geological Survey, 1999
Robert B. Blodgett, Frederic H. Wilson
2001, Professional Paper 1633
The lower Paleozoic (Silurian and Ordovician) carbonate stratal succession is divided into six unnamed stratigraphic units in the northern part of the Taylor Mountains D-1 1:63,360-scale quadrangle of southwestern Alaska. Several of these units have previously been recognized in the McGrath and Medfra quadrangles to the northeast in strata of...
Droughts, epic droughts and droughty centuries - lessons from a California paleoclimatic record: a PACLIM 2001 meeting report
M. D. Dettinger
2001, Interagency Ecological Program Newsletter (14) 51-53
During the early 1990s (but echoing studies by S.T. Harding at the University of California, from as early as the 1930s), several lines of paleoclimate evidence in and around the Sierra Nevada Range have provided the water community in California with some real horror stories. By studying ancient tree stumps...
A field and statistical modeling study to estimate irrigation water use at Benchmark Farms study sites in southwestern Georgia, 1995-96
Julia L. Fanning, Gregory E. Schwarz, William C. Lewis
2001, Water-Resources Investigations Report 2000-4292
A benchmark irrigation monitoring network of farms located in a 32-county area in southwestern Georgia was established in 1995 to improve estimates of irrigation water use. A stratified random sample of 500 permitted irrigators was selected from a data base--maintained by the Georgia Department of Natural Resources, Georgia Environmental Protection...
Simulating the impact of human land use change on forest composition in the Great Plains agroecosystems with the Seedscape model
W.E. Easterling, J.R. Brandle, C.J. Hays, Q. Guo, D.S. Guertin
2001, Ecological Modelling (104) 163-176
The expansion and contraction of marginal cropland in the Great Plains often involves small forested strips of land that provide important ecological benefits. The effect of human disturbance on these forests is not well known. Because of their unique structure such forests are not well-represented by forest gap models. In...
First finding of the amphipod Echinogammarus ischnus and the mussel Dreissena bugensis in Lake Michigan
Thomas F. Nalepa, Don W. Schloesser, Steve A. Pothoven, Darryl W. Hondorp, David L. Fanslow, Marc L. Tuchman, Guy W. Fleischer
2001, Journal of Great Lakes Research (27) 384-391
The first finding of the amphipod Echinogammarus ischnus and the mussel Dreissena bugensis in Lake Michigan is documented. These two species are widespread and abundant in the lower lakes, but had not yet been reported from Lake Michigan. E. ischnus is generally considered a warmwater form that is typically associated with hard substrates and Dreissena clusters in the...
Biological structure and dynamics of littoral fish assemblages in the eastern Finger Lakes
James E. McKenna Jr.
2001, Aquatic Ecosystem Health & Management (4) 91-114
Fish assemblages from three of the New York Finger Lakes were examined for structure within and between lakes and over time. Species-area relationships indicated that local fish assemblages are the result of recent, lake-specific events that altered the regional species pool. Fish assemblages varied among seasons and those occupying eutrophic...
West Nile virus transmission and ecology in birds
Robert G. McLean, S. R. Ubico, Douglas E. Docherty, Wallace R. Hansen, Louis Sileo, T. S. Mcnamara
2001, Annals of the New York Academy of Sciences (951) 54-57
The ecology of the strain of West Nile virus (WNV) introduced into the United States in 1999 has similarities to the native flavivirus, St. Louis encephalitis (SLE) virus, but has unique features not observed with SLE virus or with WNV in the old world. The primary route of transmission for...
Diagnostic histological findings in Yosemite toads (Bufo canorus) from die-off in the 1970s
D. Earl Green, Cynthia Kagarise Sherman
2001, Journal of Herpetology (35) 92-103
Twelve adult and 25 larval Yosemite toad (Bufo canorus) specimens from the eastern Sierra Nevada of California were examined histologically for evidence of infectious, toxicological, and degenerative diseases. The preserved toads were selected from 21 that had been salvaged or collected during a die-off in 1976-1979 that immediately preceded a...
Silent reminders: geologic wonders of the George Washington and Jefferson National Forests
Water Resources Division, U.S. Geological Survey, U.S. Forest Service
2001, Report
The iron industry played a vital role in the industrialization of the United States and in the development of the U.S. economy and society. Much of the early history of the iron industry took place in Virginia. The remains of 11 iron furnaces and nearby mines in the George Washington...
Diet composition and fish consumption of double-crested cormorants from the Little Galloo Island colony of eastern lake Ontario in 2000
J. H. Johnson, R. M. Ross, R.D. McCullough, B. Edmonds
2001, Report, New York State Department of Environmental Conservation 2000 Annual Report; NYSDEC Lake Ontario Annual Report 2000
No abstract available at this time...
Diet composition and fish consumption of double-crested cormorants from the Pigeon and Snake Island colonies of eastern Lake Ontario in 2000
J. H. Johnson, R. M. Ross, R.D. McCullough, B. Edmonds
2001, Report, New York State Department of Environmental Conservation 2000 Annual Report; NYSDEC Lake Ontario Annual Report 2000
No abstract available at this time...
Pesticides and amphibian declines in California, USA
Donald W. Sparling, Gary M. Fellers, Laura McConnell
2001, Environmental Toxicology and Chemistry (20) 1591-1595
Several species of anuran amphibians have undergone drastic population declines in the western United States over the last 10 to 15 years. In California, the most severe declines are in the Sierra Mountains east of the Central Valley and downwind of the intensely agricultural San Joaquin Valley. In contrast, coastal...
Ploidy race distributions since the Last Glacial Maximum in the North American desert shrub, Larrea tridentata
Kimberly L. Hunter, Julio L. Betancourt, Brett R. Riddle, Thomas R. Van Devender, K.L. Cole, W. G. Spaulding
2001, Global Ecology and Biogeography (10) 521-533
A classic biogeographic pattern is the alignment of diploid, tetraploid and hexaploid races of creosote bush (Larrea tridentata) across the Chihuahuan, Sonoran and Mohave Deserts of western North America. We used statistically robust differences in guard cell size of modern plants and fossil leaves from packrat middens to...
Detection of Perkinsus marinus extracellular proteins tissues of the eastern oyster Crassostrea virginica: Potential use diagnostic assays
C. A. Ottinger, T.D. Lewis, D.A. Shapiro, M. Faisal, S.L. Kaattari
2001, Journal of Aquatic Animal Health (13) 133-141
Perkinsus marinus, the cause of serious losses of the eastern oyster Crassostrea virginica, secretes extracellular proteins (ECP) in culture (in vitro) including serine proteases. The production of similar ECP in the eastern oyster (in vivo) and their role in pathogenicity, however, remain to be elucidated. The induction and dissemination of these...
Fall migration routes, timing, and wintering sites of North American ospreys as determined by satellite telemetry
M.S. Martell, Charles J. Henny, P. Nye, Matthew J. Solensky
2001, The Condor (103) 715-724
Satellite telemetry was used to determine fall migratory movements of Ospreys (Pandion haliaetus) breeding in the United States. Study areas were established along the lower Columbia River between Oregon and Washington; in north-central Minnesota; on Shelter Island, New York; and in southern New Jersey. Seventy-four adults (25 males, 49 females)...
Area requirements of grassland birds: A regional perspective
Douglas H. Johnson, Lawrence D. Igl
2001, The Auk (118) 24-34
Area requirements of grassland birds have not been studied except in tallgrass prairie. We studied the relation between both species-occurrence and density and patch size by conducting 699 fixed-radius point counts of 15 bird species on 303 restored grassland areas in nine counties in four northern Great Plains states. Northern...
Seismic mapping of shallow fault zones in the San Gabriel Mountains from the Los Angeles Region Seismic Experiment, southern California
G. S. Fuis, T. Ryberg, W. J. Lutter, P.L. Ehlig
2001, Journal of Geophysical Research B: Solid Earth (106) 6549-6568
During the Los Angeles Region Seismic Experiment (LARSE), a reflection/refraction survey was conducted along a profile (line 1) extending from Seal Beach, California, northeastward to the Mojave Desert and crossing the Los Angeles and San Gabriel Valley basins and San Gabriel Mountains. In most shot gathers from the southern and...
Associations of grassland birds with landscape factors in southern Wisconsin
Christine Ribic, D. W. Sample
2001, American Midland Naturalist (146) 105-121
We investigated the association of grassland birds with field- and landscape-level habitat variables in south-central Wisconsin during 1985–1987. Landscape-level variables were measured and digitized at 200, 400 and 800 m from the perimeter of 38 200 m × 100 m strip transects. A mixture of field and landscape variables was...
Distribution of oxygen-18 and deuteriun in river waters across the United States
Carol Kendall, Tyler B. Coplen
2001, Hydrological Processes (15) 1363-1393
Reconstruction of continental palaeoclimate and palaeohydrology is currently hampered by limited information about isotopic patterns in the modern hydrologic cycle. To remedy this situation and to provide baseline data for other isotope hydrology studies, more than 4800, depth- and width-integrated, stream samples from 391 selected sites within the USGS...
Observation of the geology and geomorphology of the 1999 Marsokhod test site
R. A. De Hon, N.G. Barlow, M. K. Reagan, E. Arthur Bettis III, C.T. Foster Jr., V. C. Gulick, L.S. Crumpler, J.C. Aubele, M. G. Chapman, K. L. Tanaka
2001, Journal of Geophysical Research E: Planets (106) 7665-7682
The Marsokhod rover returned data from six stations that were used to decipher the geomorphology and geology of a region not previously visited by members of the geomorphology field team. Satellite images and simulated descent images provided information about the regional setting. The landing zone was on an alluvial apron...
Apatite fission-track evidence of widespread Eocene heating and exhumation in the Yukon-Tanana Upland, interior Alaska
Cynthia Dusel-Bacon, J.M. Murphy
2001, Canadian Journal of Earth Sciences (38) 1191-1204
We present an apatite fission-track (AFT) study of five plutonic rocks and seven metamorphic rocks across 310 km of the YukonTanana Upland in east-central Alaska. Samples yielding ~40 Ma AFT ages and mean confined track lengths > 14 µm with low standard...
