Migration strategies and wintering areas of North American ospreys as revealed by satellite telemetry
Mark S. Martell, Charles J. Henny, P. Nye, Matthew J. Solensky
2000, Microwave Telemetry Newsletter (1) 3-4
Since 1995 we have trapped and tagged 110 Ospreys (Pandion haliaetus) from 12 study sites in 8 states (Fig. 1). This total includes 71 females, 32 males and 7 juveniles. Our study areas encompass the major Osprey population concentrations found in the United States including the Western States, the Great...
Ecosystem responses to nitrogen deposition in the Colorado Front Range
Jill Baron, H.M. Rueth, A.M. Wolfe, K. R. Nydick, E.J. Allstott, J.T. Minear, B. Moraska
2000, Ecosystems (3) 352-368
We asked whether 3–5 kg N y−1 atmospheric N deposition was sufficient to have influenced natural, otherwise undisturbed, terrestrial and aquatic ecosystems of the Colorado Front Range by comparing ecosystem processes and properties east and west of the Continental Divide. The eastern side receives elevated N deposition from urban, agricultural,...
Quantitative polymerase chain reaction for transforming growth factor-β applied to a field study of fish health in Chesapeake Bay tributaries
Craig A. Harms, Christopher A. Ottinger, Vicki S. Blazer, Christine L. Densmore, Laurence H. Pieper, Suzanne Kennedy-Stoskopf
2000, Environmental Health Perspectives (108) 447-452
Fish morbidity and mortality events in Chesapeake Bay tributaries have aroused concern over the health of this important aquatic ecosystem. We applied a recently described method for quantifying mRNA of an immunosuppressive cytokine, transforming growth factor-β (TGF-β), by reverse transcription quantitative-competitive polymerase chain reaction to a field study of fish...
First record of Daphnia lumholtzi Sars in the Great Lakes
Christopher J. Muzinic
2000, Journal of Great Lakes Research (26) 352-354
Adults of the cladoceran Daphnia lumholtzi, native to Australia, Africa, and parts of Asia, were first collected in August 1999 in Lake Erie. Individuals were collected near East Harbor State Park, Lakeside, Ohio from vertical plankton net tows. The average number of D. lumholtzi that were found (0.03/L) indicate that D. lumholtzi is beginning to...
Molecular genetic status of Aleutian Canada Geese from Buldir and the Semidi Islands, Alaska
Barbara J. Pierson, John M. Pearce, Sandra L. Talbot, Gerald F. Shields, Kim T. Scribner
2000, The Condor (102) 172-180
We conducted genetic analyses of Aleutian Canada Geese (Branta canadensis leucopareia) from Buldir Island in the western Aleutians and the Semidi Islands in the eastern portion of their breeding range. We compared data from seven microsatellite DNA loci and 143 base pairs of the control region of mitochondrial DNA from...
Effects of management practices on grassland birds: Eastern Meadowlark
Scott D. Hull
2000, Report
Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 4,000 published and unpublished papers. A range map is provided to indicate the relative densities of the species in North America, based on Breeding Bird Survey (BBS) data. Although birds...
Modeling annual mallard production in the prairie-parkland region
M.W. Miller
2000, Journal of Wildlife Management (64) 561-575
Biologists have proposed several environmental factors that might influence production of mallards (Anas platyrhynchos) nesting in the prairie-parkland region of the United States and Canada. These factors include precipitation, cold spring temperatures, wetland abundance, and upland breeding habitat. I used long-term historical data sets of climate, wetland numbers, agricultural land...
Preliminary report on the 16 October 1999 M 7.1 Hector mine, California, earthquake
J. Behr, B. Bryant, D. Given, K. Gross, K. Hafner, J. Hardebeck, E. Hauksson, T. Heaton, S. Hough, K. Hudnut, K. Hutton, L. Jones, H. Kanamori, K. Kendrick, N. King, P. Maechling, A. Meltzner, D. Ponti, Thomas Rockwell, A. Shakal, M. Simons, K. Stark, D. Wald, L. Wald, L. Zhu
2000, Seismological Research Letters (71) 11-23
The Mw 7.1 Hector Mine, California, earthquake occurred at 9:46 GMT on 16 October 1999. The event caused minimal damage because it was located in a remote, sparsely populated part of the Mojave Desert, approximately 47 miles east-southeast of Barstow, with epicentral coordinates 34.59°N 116.27°W and a hypocentral...
New Lower Mississippian Trilobites from the Chouteau Group of Missouri
D. K. Brezinski
2000, Annals of Carnegie Museum (69) 135-144
Reexamination of existing trilobite collections from the Kinderhookian (Lower Mississippian) Chouteau Group of central and northeastern Missouri indicates that two different suites of trilobites are present in these two areas of the state. Moreover, the study of these collections has led to the erection of a new genus and four...
A new ichnospecies of Nereites from carboniferous tidal-flat facies of eastern Kansas, USA: Implications for the Nereites-Neonereites debate
M.G. Mangano, L.A. Buatois, C.G. Maples, R.R. West
2000, Journal of Paleontology (74) 149-157
Predominantly horizontal, gently curved to slightly sinuous traces constituting uniserial rows of imbricated, subspherical sediment pads occur in Pennsylvanian tidal-flat facies of eastern Kansas. These traces exhibit a complex, actively filled internal structure. The presence of a median tunnel enveloped by overlapping pads of reworked sediment indicates that these biogenic...
Bottom currents and sediment transport in Long Island Sound: A modeling study
R. P. Signell, J. H. List, A.S. Farris
2000, Journal of Coastal Research (16) 551-566
A high resolution (300-400 m grid spacing), process oriented modeling study was undertaken to elucidate the physical processes affecting the characteristics and distribution of sea-floor sedimentary environments in Long Island Sound. Simulations using idealized forcing and high-resolution bathymetry were performed using a three-dimensional circulation model ECOM (Blumberg and Mellor, 1987)...
Triggered surface slips in the Coachella Valley area associated with the 1992 Joshua Tree and Landers, California, Earthquakes
M. J. Rymer
2000, Bulletin of the Seismological Society of America (90) 832-848
The Coachella Valley area was strongly shaken by the 1992 Joshua Tree (23 April) and Landers (28 June) earthquakes, and both events caused triggered slip on active faults within the area. Triggered slip associated with the Joshua Tree earthquake was on a newly recognized fault, the East Wide Canyon fault,...
Lava bubble-wall fragments formed by submarine hydrovolcanic explosions on Lō'ihi Seamount and Kīlauea Volcano
D.A. Clague, A. S. Davis, J. L. Bischoff, J.E. Dixon, R. Geyer
2000, Bulletin of Volcanology (61) 437-449
Glassy bubble-wall fragments, morphologically similar to littoral limu o Pele, have been found in volcanic sands erupted on Lō'ihi Seamount and along the submarine east rift zone of Kīlauea Volcano. The limu o Pele fragments are undegassed with respect to H2O and S and formed by mild steam explosions. Angular...
Clostridium perfringens in Long Island Sound sediments: An urban sedimentary record
Marilyn R. Buchholtz ten Brink, E.L. Mecray, E.L. Galvin
2000, Journal of Coastal Research (16) 591-612
Clostridium perfringens is a conservative tracer and an indicator of sewage-derived pollution in the marine environment. The distribution of Clostridium perfringens spores was measured in sediments from Long Island Sound, USA, as part of a regional study designed to: (1) map the distribution of contaminated sediments; (2) determine transport and...
Influence of net freshwater supply on salinity in Florida Bay
William K. Nuttle, James W. Fourqurean, Bernard J. Cosby, Joseph C. Zieman, Michael B. Robblee
2000, Water Resources Research (36) 1805-1822
An annual water budget for Florida Bay, the large, seasonally hypersaline estuary in the Everglades National Park, was constructed using physically based models and long‐term (31 years) data on salinity, hydrology, and climate. Effects of seasonal and interannual variations of the net freshwater supply (runoff plus rainfall...
Late-glacial environmental changes south of the Wisconsinan terminal moraine in the Eastern United States
E.W.B. Russell, S.D. Stanford
2000, Quaternary Research (53) 105-113
Palynological analyses of two sediment cores, one 2.4 m long from northern Delaware, dated about 16,300 to 14,700 14C yr B.P., and one 1.8 m long from New Jersey just south of the Wisconsinan terminal moraine and dated about 13,600 to 12,500 14C yr B.P., give the first detailed evidence...
Figurines, flint clay sourcing, the Ozark Highlands, and Cahokian acquisition
T.E. Emerson, R.E. Hughes
2000, American Antiquity (65) 79-101
At the pinnacle of Eastern Woodlands’ prehistoric cultural development, Cahokia has been interpreted as a political and economic power participating in prestige-goods exchanges and trade networks stretching from the Great Plains to the South Atlantic. Among the more spectacular of the Cahokian elite artifacts were stone pipes and figurines made...
Atmospheric nitrogen in the Mississippi River Basin: Amissions, deposition and transport
G.B. Lawrence, D. A. Goolsby, W.A. Battaglin, G.J. Stensland
2000, Science of Total Environment (248) 87-100
Atmospheric deposition of nitrogen has been cited as a major factor in the nitrogen saturation of forests in the north-eastern United States and as a contributor to the eutrophication of coastal waters, including the Gulf of Mexico near the mouth of the Mississippi River. Sources of nitrogen emissions and the...
Sequence stratigraphy of the Aux Vases Sandstone: A major oil producer in the Illinois basin
H.E. Leetaru
2000, American Association of Petroleum Geologists Bulletin (84) 399-422
The Aux Vases Sandstone (Mississippian) has contributed between 10 and 25% of all the oil produced in Illinois. The Aux Vases is not only an important oil reservoir but is also an important source of groundwater, quarrying stone, and fluorspar. Using sequence stratigraphy, a more accurate stratigraphic interpretation of this...
Geology in the 1996 USGS seismic-hazard maps, central and eastern United States
R. L. Wheeler, A. Frankel
2000, Seismological Research Letters (71) 273-282
The current (1996) national probabilistic seismic-hazard maps utilize information about geologic structure and tectonics of the central and eastern U.S. to compensate for uncertainty that arises from the short seismicity record. Geology was incorporated into the maps mainly as seven source zones that are delineated in three distinct ways. The...
Seasonal movements and pelagic habitat use of Murres and Puffins determined by satellite telemetry
Scott A. Hatch, P.M. Meyers, D.M. Mulcahy, David C. Douglas
2000, Condor (102) 145-154
We tracked the movements of Common Murres (Uria aalge), Thick-billed Murres (U. lomvia), and Tufted Puffins (Fratercula cirrhata) using surgically implanted satellite transmitters. From 1994–1996, we tagged 53 birds from two colonies in the Gulf of Alaska (Middleton Island and Barren Islands) and two colonies in the Chukchi Sea (Cape...
Risk factors associated with capture-related death in eastern wild turkey hens
D.S. Nicholson, R.L. Lochmiller, M.D. Stewart, R.E. Masters, David M. Leslie Jr.
2000, Journal of Wildlife Diseases (36) 308-315
Capture-related mortality has been a notable risk in the handling of eastern wild turkey (Meleagris gallopavo silvestris). Our objective was to evaluate how environmental factors influence risk and identify physiological correlates that could be used to identify susceptible birds. During winter (January–March) 1995–97, 130 eastern wild turkey hens were captured...
Crustal deformation associated with glacial fluctuations in the eastern Chugach Mountains, Alaska
Jeanne Sauber, George Plafker, Bruce F. Molnia, Mark A. Bryant
2000, Journal of Geophysical Research B: Solid Earth (105) 8055-8077
The changes of the solid Earth in south central Alaska in response to two major glacial fluctuations on different temporal and spatial scales have been estimated and we evaluated their influence on the stress state and ongoing tectonic deformation of the region. During the recent (1993–1995) Bering Glacier surge, a...
A comparison of delta change and downscaled GCM scenarios for three mountainous basins in the United States
L.E. Hay, R.L. Wilby, G.H. Leavesley
2000, Journal of the American Water Resources Association (36) 387-397
Simulated daily precipitation, temperature, and runoff time series were compared in three mountainous basins in the United States: (1) the Animas River basin in Colorado, (2) the East Fork of the Carson River basin in Nevada and California, and (3) the Cle Elum River basin in Washington State. Two methods...
Isotopic evidence for the sources of Cretaceous and tertiary granitic rocks, east-central Alaska: Implications for the tectonic evolution of the Yukon-Tanana terrane
J. N. Aleinikoff, G. L. Farmer, R. O. Rye, W. J. Nokleberg
2000, Canadian Journal of Earth Sciences (37) 945-956
Magnetotelluric traverses across the southern Yukon-Tanana terrane (YTT) reveal the presence of a thick conductive layer (or layers) beneath Paleozoic crystalline rocks. These rocks have been interpreted to be flysch of probable Mesozoic age, on the basis of the occurrence of Jurassic-Cretaceous flysch in the Kahiltna assemblage and Gravina-Nutzotin belt...
