Grizzly bears and calving caribou: What is the relation with river corridors?
Donald D. Young Jr., Thomas R. McCabe
1998, Journal of Wildlife Management (62) 255-261
Researchers have debated the effect of the Trans-Alaska Pipeline (TAP) and associated developments to caribou (Rangifer tarandus) of the central Arctic herd (CAH) since the 1970s. Several studies have demonstrated that cows and calves of the CAH avoided the TAP corridor because of disturbance associated with the pipeline, whereas others...
Cultural resource applications for a GIS: Stone conservation at Jefferson and Lincoln Memorials
Kyle Joly, Tony Donald, Douglas Comer
1998, Cultural Resources Management (21) 17-18
Geographical information systems are rapidly becoming essential tools for land management. They provide a way to link landscape features to the wide variety of information that managers must consider when formulating plans for a site, designing site improvement and restoration projects, determining maintenance projects and protocols, and even interpreting the...
Ecological, morphological, genetic and life history characteristics of two sockeye salmon populations, Tustumena Lake, Alaska
Carol Ann Woody
1998, Thesis
Populations can differ in both phenotypic and molecular genetic traits. Phenotypic differences likely result from differential selection pressures in the environment, whereas differences in neutral molecular markers result from genetic drift associated with some degree of reproductive isolation. Two sockeye salmon, Oncorhynchus nerka, populations were compared using both phenotypic and...
Marbled murrelets have declined in Alaska
John F. Piatt
1998, Northwest Science (72) 310-314
In the last issue of Northwest Science, Hayward and Iverson (“Long-Term Trends in Marbled Murrelets in Southeast Alaska Based on Christmas Bird Counts”) failed to mention other evidence for 40-75% declines in murrelet populations, or discuss implications of a climate regime shift that has reduced populations of seabirds in Alaska,...
Hydrates contain vast store of world gas resources
Timothy S. Collett, Vello A. Kuuskraa
1998, Oil & Gas Journal (96) 90-95
The discovery of large gas hydrate accumulations on the North Slope of Alaska and off the U.S. southeast coast has heightened interest in gas hydrates as a possible energy resource of the future. However, significant geological uncertainties and possibly insurmountable technical issues need to be resolved before gas hydrates can...
Reduction of earthquake risk in the United States: Bridging the gap between research and practice
W. W. Hays
1998, IEEE Transactions on Engineering Management (45) 176-180
Continuing efforts under the auspices of the National Earthquake Hazards Reduction Program are under way to improve earthquake risk assessment and risk management in earthquake-prone regions of Alaska, California, Nevada, Washington, Oregon, Arizona, Utah, Wyoming, and Idaho, the New Madrid and Wabash Valley seismic zones in the central United States,...
Effect of implanted satellite transmitters on the nesting behavior of Murres
P.M. Meyers, Scott A. Hatch, D.M. Mulcahy
1998, Condor (100) 172-174
We implanted 6 Common Murres (Uria aalge) and 10 Thick-billed Murres (Uria lomvia) with satellite transmitters and compared subsequent presence at the colony, nesting status, and provisioning to a control group that underwent a simple surgical procedure. In the 10 days following implantation, we resighted 10 of 11 control birds...
Paleozoic orogens in New England, USA
Peter Robinson, Robert D. Tucker, Dwight Bradley, H. N. Berry IV, P. H. Osberg
1998, GFF (120) 119-148
Stratigraphy and isotope geochronology in the crystalline core of the Appalachians suggest revised interpretations of the extent, nature and timing of Paleozoic orogens in New England. Five major episodes of magmatism, deformation, and high-grade regional metamorphism are recognized: Taconian (455-442 Ma), Acadian (423-385 Ma), Neo-Acadian (366-350 Ma), Late Pennsylvanian (300-290...
Birds of the Indigirka River Delta, Russia: Historical and biogeographic comparisons
John M. Pearce, Daniel Esler, Andrei G. Degtyarev
1998, Arctic (51) 361-370
We documented the breeding status and relative abundance of all avian species on the coastal portion of the Indigirka River Delta during spring and summer 1993-95. Data on avifaunal composition were then compared to data from adjacent areas from Eastern Siberia to the Chukotka Peninsula to evaluate how species composition...
Foods of Spectacled Eiders Somateria fischeri in the Bering Sea, Alaska
Margaret R. Petersen, John F. Piatt, K.A. Trust
1998, Wildfowl (49) 124-128
The winter diet of Spectacled Eiders living in marine habitats is known only from two individuals described by Cottam (1939). Here we examine marine diets from 36 stomachs collected near St. Lawrence Island, Bering Sea, Alaska, during May-June in 1987 and 1992. All Spectacled Eiders ate Mollusca, including Gastropoda (snails;...
Holocene geologic and climatic history around the Gulf of Alaska
D.H. Mann, A.L. Crowell, T. D. Hamilton, B. P. Finney
1998, Arctic Anthropology (35) 112-131
Though not as dramatic as during the last Ice Age, pronounced climatic changes occurred in the northeastern Pacific over the last 10,000 years. Summers warmer and drier than today's accompanied a Hypsithermal interval between 9 and 6 ka. Subsequent Neoglaciation was marked by glacier expansion after 5-6 ka and the...
Depth and substrate as determinants of distribution of juvenile flathead sole (Hippoglossoides elassodon) and rock sole (Pleuronectes bilineatus), in Kachemak Bay, Alaska
Alisa A. Abookire, Brenda L. Norcross
1998, Journal of Sea Research (39) 113-123
Three transects in Kachemak Bay, Alaska, were sampled in September 1994, May and August 1995, and February, May, and August 1996. Juvenile flathead sole, Hippoglossoides elassodon, and rock sole, Pleuronectes bilineatus, were the most abundant flatfishes, comprising 65-85% of all fiatfishes captured at any period. Collections of fish and sediments...
Timing and synchrony of parturition in Alaska caribou
Layne G. Adams, Bruce W. Dale
1998, Journal of Mammalogy (79) 287-294
Timing of parturition of caribou (Rangifer tarandus) varies within populations, but the relative influences of nutritional condition of females during the autumn breeding season and during gestation on that variation is not known. We determined timing of parturition of caribou in Denali National Park, Alaska, during 1984–1995, which had wide...
Identification of polar bear den habitat in northern Alaska
Steven C. Amstrup, Gerald W. Garner
Andrew E. Derocher, Gerald W. Garner, Nicholas J. Lunn, Oystein Wiig, editor(s)
1998, Occasional Papers of the IUCN Species Survival Comission (SSC) 19
The goal of this project is to refine the information collected previously on maternal denning, into digital maps that show where polar bears are likely to create future dens in northern Alaska. Such maps will allow a priori recommendations regarding timing and geographic locations of proposed human developments; and hence...
Polar bears of the Severnaya Zemlya Archipelago of the Russian Arctic
Stanislav Belikov, G.W. Garner, O. Wiig, Andrei N. Boltunov, Y.A. Gorbunov
1998, Ursus (10) 33-40
Geographic, temporal, and age-specific variation in diets of Glaucous Gulls in western Alaska
Joel A. Schmutz, K.A. Hobson
1998, Condor (100) 119-130
We collected boluses and food remains of adult Glaucous Gulls (Larus hyperboreus) at or near nests and chicks, and digestive tracts from adults at three sites on the Yukon-Kuskokwim Delta, Alaska that differed in proximity to marine and terrestrial foods. We observed both geographic and temporal variation in diet; gulls...
Synthetic aperture radar interferometry coherence analysis over Katmai volcano group, Alaska
Z. Lu, J.T. Freymueller
1998, Journal of Geophysical Research B: Solid Earth (103) 29887-29894
The feasibility of measuring volcanic deformation or monitoring deformation of active volcanoes using space-borne synthetic aperture radar (SAR) interferometry depends on the ability to maintain phase coherence over appropriate time intervals. Using ERS 1 C band (λ=5.66 cm) SAR imagery, we studied the seasonal and temporal changes of the interferometric...
Blood lead concentrations of spectacled eiders near the Kashunuk River, Yukon Delta National Wildlife Refuge, Alaska
J. Christian Franson, Margaret R. Petersen, Lynn H. Creekmore, Paul L. Flint, Milton R. Smith
1998, Ecotoxicology (7) 175-181
We collected, 342 blood samples from spectacled eiders (Somateria fischeri) on their breeding grounds in western Alaska from late May through to early August 1993–1995. Lead concentrations of ≥0.50 p.p.m. wet weight were found in the blood of 20% of the adult female eiders, 2% of the adult...
Tephra-fall deposits from the 1992 eruption of Crater Peak, Alaska: implications of clast textures for eruptive processes
C. A. Gardner, K. V. Cashman, C.A. Neal
1998, Bulletin of Volcanology (59) 537-555
The 1992 eruption of Crater Peak, Mount Spurr, Alaska, involved three subplinian tephra-producing events of similar volume and duration. The tephra consists of two dense juvenile clast types that are identified by color, one tan and one gray, of similar chemistry, mineral assemblage, and glass composition. In two of the...
Tsivat Basin conduit system persists through two surges, Bering Piedmont Glacier, Alaska
P.J. Fleisher, D.H. Cadwell, E.H. Muller
1998, Geological Society of America Bulletin (110) 877-887
The 1993–1995 surge of Bering Glacier, Alaska, occurred in two distinct phases. Phase 1 of the surge began on the eastern sector in July, 1993 and ended in July, 1994 after a powerful outburst of subglacial meltwater into Tsivat Lake basin on the north side of Weeping Peat Island. Within...
Guts don't fly: Small digestive organs in obese Bar-tailed Godwits
Theunis Piersma, Robert E. Gill Jr.
1998, The Auk (115) 196-203
We documented fat loads and abdominal organ sizes of Bar-tailed Godwits (Limosa lapponica baueri) that died after colliding against a radar dome on the Alaska Peninsula, most likely just after takeoff on a trans-Pacific flight of 11,000 km, and of birds of the same subspecies just before...
Ecological relationship between freshwater sculpins (Genus cottus) and beach-spawning sockeye salmon (Oncorhynchus nerka) in Iliamna Lake, Alaska
C.J. Foote, G.S. Brown
1998, Canadian Journal of Fisheries and Aquatic Sciences (55) 1524-1533
The interaction between two sculpin species, Cottus cognatus and Cottus aleuticus, and island beach spawning sockeye salmon (Oncorhynchus nerka) was examined in Iliamna Lake, Alaska. We conclude that sculpins actively move to specific spawning beaches and that the initiation of their movements precedes the start of spawning. Sculpin predation on...
Survival of Common Eider Somateria mollissima adult females and ducklings during brood rearing
Paul L. Flint, Christine L. Moran, J.L. Schamber
1998, Wildfowl (49) 103-109
We studied survival of adult female and duckling Common Eiders during brood rearing at two sties o the Yukon-Kuskokwim Delta, Alaska, in 1997. Duckling survival to 30 days of age was 19%±10% (95% CI). Seventy-three percent of radio-marked adult females had lost all their ducklings by 30 days after hatch....
Water Resources Data, Alaska, Water Year 1997
S.L. Benson, D.L. Hess, D. F. Meyer, K.A. Peck, W.C. Swanner
1998, Water Data Report AK-97-1
Water quality in the central Nebraska basins, Nebraska, 1992-95
S.A. Frenzel, R. B. Swanson, T.L. Huntzinger, J. K. Stamer, P.J. Emmons, R. B. Zelt
1998, Circular 1163
This report is intended to summarize major findings that emerged between 1992 and 1995 from the water-quality assessment of the Central Nebraska Basins Study Unit and to relate these findings to water-quality issues of regional and national concern. The information is primarily intended for those who are involved in waterresource...
