Kevin R. Evans
1997, Open-File Report 97-26
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Page 221, results 5501 - 5525
Publication Extents
Not all publications have extents, not all extents are completely accurateW. J. Keith, Marti L. Miller
1997, Open-File Report 97-32
No abstract available....
James L. Bodkin, Jack A. Ames, Ronald J. Jameson, Ancel M. Johnson, Gary M. Matson
1997, Journal of Wildlife Management (61) 967-973
We assessed sources of variation in the use of tooth cementum layers to determine age by comparing counts in premolar tooth sections to known ages of 20 sea otters (Enhydra lutris). Three readers examined each sample 3 times, and the 3 readings of each sample were averaged by reader to...
T. P. Brabets
1997, Open-File Report 96-630
James S. Sedinger, Mark S. Lindberg, Eric A. Rexstad, Nathan Chelgren, David H. Ward
1997, Journal of Wildlife Management (61) 782-791
We used an ultrastructure approach in program SURVIV to test for, and remove, bias in survival estimates for the year following mass banding of female black brant (Branta bernicla nigricans). We used relative banding-drive size as the independent variable to control for handling effects in our ultrastructure models, which took...
James L. Bodkin, Jack A. Ames, Ronald J. Jameson, Ancel M. Johnson, Gary M. Matson
1997, Journal of Wildlife Management (61) 967-973
We assessed sources of variation in the use of tooth cementum layers to determine age by comparing counts in premolar tooth sections to known ages of 20 sea otters (Enhydra lutris). Three readers examined each sample 3 times, and the 3 readings of each sample were averaged by reader to...
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 071-97
Plant fossils, such as leaves, wood, cones, pollen, and seeds, provide important evidence of how Alaska's vegetation has responded to climate changes over time periods of centuries to millions of years. Long-term trends of global temperatures have been reconstructed from oxygen isotope measurements of microscopic fossils (foraminifera) in the Pacific...
K.D. Kelley, E. A. Bailey, Paul H. Briggs, J. M. Motooka, A. L. Meier
1997, Open-File Report 96-711
U.S. Geological Survey
1997, Report
IntroductionThis report primarily describes activities during Federal fiscal year (FY) 1997. During FY 1997, the USGS engaged in cooperative research projects, data collection, informal outreach, and work done under Memoranda of Understanding that related to American Indians or Alaska Natives. Some work was technical and/or research-oriented. Other work was educational....
Andrew G. Fountain, Robert M. Krimmel, Dennis C. Trabant
1997, Circular 1132
Glaciers are important features in the hydrologic cycle and affect the volume, variability, and water quality of runoff. Assessing and predicting the effect of glaciers on water resources require a monitoring program to provide basic data for this understanding. The monitoring program of the U.S. Geological Survey employs a nested...
David L. Garshelis, James A. Estes
1997, Marine Mammal Science (13) 341-351
The Exxon Valadez oil spill killed large numbers of sea otters (Enhydra lutris) in Prince William Sound (PWS), Alaska, where the spill originated, as well as within the oil’s path along the coasts of the Kenai Peninsula and Kodiak Island. Sea otters attracted particular attention after the spill due to...
Rocky R. Reifenstuh, James H. Dover, Rainer J. Newberry, Karen H. Calutice, Shirley A. Liss, Robert B. Blodgett, Thomas K. Budtzen, Florence R. Weber
1997, Report
No abstract available....
Rocky R. Reifenstuh, James H. Dover, Rainer J. Newberry, Karen H. Calutice, Shirley A. Liss, Robert B. Blodgett, Thomas K. Budtzen, Florence R. Weber
1997, Report
This report provides detailed (1:63,360-scale) mapping of the Tanana B-1 Quadrangle (250 square miles; equivalent to four 7.5 minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the north of the Tanana A-1 and A-2 Quadrangles. This report...
John Y. Takekawa, Craig R. Ely
1997, California Waterfowl 36-37
C. G. Mull, R.K. Glenn, K.E. Adams
1997, Journal of Geophysical Research B: Solid Earth (102) 20749-20772
Atigun Gorge, at the northern front of the eastern Endicott Mountains, contains well-exposed rocks of the upper part of the Endicott Mountains allochthon and rocks of the structurally higher Picnic Creek or Ipnavik River allochthon. These allochthons contain rocks as young as Early Cretaceous (Valanginian) and are separated by a...
O.W. Johnson, N. Warnock, M.A. Bishop, A.J. Bennett, P.M. Johnson, R.J. Kienholz
1997, The Auk (114) 521-524
Many Pacific Golden-Plovers (Pluvialis fulva) and other shorebirds winter in the Hawaiian Islands. This is the first landfall for mid-Pacific migrants after overwater flights of 4,000 km or more from Alaska (Johnson et al. 1989, Johnson and Connors 1996). Previous findings (sightings of marked birds and wing-length measurements) showed Alaska...
G. S. Fuis, J.M. Murphy, W. J. Lutter, Thomas E. Moore, K. J. Bird, N.I. Christensen
1997, Journal of Geophysical Research B: Solid Earth (102) 20873-20896
Seismic reflection and refraction and laboratory velocity data collected along a transect of northern Alaska (including the east edge of the Koyukuk basin, the Brooks Range, and the North Slope) yield a composite picture of the crustal and upper mantle structure of this Mesozoic and Cenozoic compressional orogen. The following...
Craig R. Ely, David C. Douglas, A. C. Fowler, Colleen A. Babcock, D.V. Derksen, John Y. Takekawa
1997, The Wilson Bulletin (109) 679-692
L. C. Gerhard
1997, Northeastern Geology and Environmental Sciences (19) 8-13
One of the greatest excitements for a petroleum geologist is to venture into the frontier, to explore and drill "where no man has gone before." Over 50 years ago Bill Rex, a Kansas oilman, was tapped to lead the first oil drilling expedition into the Alaskan Arctic. He successfully assembled...
Keith A. Hobson, John L. Sease, Richard L. Merrick, John F. Piatt
1997, Marine Mammal Science (13) 114-132
We measured stable-nitrogen (δ15N) and stable-carbon (δ13C) isotope ratios in muscle and hair from 7 northern fur seals (Callorhinus ursinus) from the Pribilof Islands, Alaska, and 27 Steller sea lions (Eumetopias jubatus), and 14 harbor seals (Phoca vitulina) from the Gulf of Alaska and coast of Washington State, in order...
Donald D. Young Jr., Thomas R. McCabe
1997, Journal of Wildlife Management (61) 1056-1066
During June 1993 and 1994, 11 radiocollared and 7 unmarked grizzly bears (Ursus arctos) were monitored visually (observation) from fixed-wing aircraft to document predation on calves of the Porcupine Caribou (Rangifer tarandus) Herd (PCH) in northeastern Alaska. Twenty-six (72%) grizzly bear observations were completed (???60 min) successfully (median duration =...
David H. Ward, Carl J. Markon, David C. Douglas
1997, Aquatic Botany (58) 229-240
Spatial change in eelgrass meadows, Zostera marina L., was assessed between 1978 and 1987 and between 1987 and 1995 at Izembek Lagoon, Alaska. Change in total extent was evaluated through a map to map comparison of data interpreted from a 1978 Landsat multi-spectral scanner image and 1987 black and white...
Paul L. Flint, Margaret R. Petersen, J. Barry Grand
1997, Canadian Journal of Zoology (75) 439-443
Lead poisoning, resulting from ingestion of spent shot, has been identified as a cause of mortality in Spectacled Eiders (Somateria fischeri) on the Yukon–Kuskokwim Delta, Alaska. We examined lead-exposure rates of adult and juvenile Spectacled Eiders and other diving ducks, using atomic absorption spectrophotometry of blood samples. Additionally, we X-rayed...
C. V. Burger, William J. Spearman, M. A. Cronin
1997, Transactions of the American Fisheries Society (126) 926-938
The Tustumena lake drainage in southcentral Alaska is glacially turbid and geologically young (<2,000 years old). Previous field studies identified at least three subpopulations of sockeye salmon Oncorhynchus nerka at Tustumena Lake, based on the distribution and timing of spawners. The subpopulations included early-run salmon that spawned in six clearwater...
E. Snyder-Conn, John R. Garbarino, Gerald L. Hoffman, A. Oelkers
1997, Arctic (50) 201-215
Ultraclean field and laboratory procedures were used to examine trace element concentrations in northern Alaskan snow. Sixteen soluble trace elements and total mercury were determined in snow core samples representing the annual snowfall deposited during the 1993-94 season at two sites in the Prudhoe Bay oil field and nine sites...