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...
The enormous Chillos Valley Lahar: An ash-flow-generated debris flow from Cotopaxi Volcano, Ecuador
P.A. Mothes, M.L. Hall, R. J. Janda
1998, Bulletin of Volcanology (59) 233-244
The Chillos Valley Lahar (CVL), the largest Holocene debris flow in area and volume as yet recognized in the northern Andes, formed on Cotopaxi volcano's north and northeast slopes and descended river systems that took it 326 km north–northwest to the Pacific Ocean and 130+ km east into...
Effect of lead poisoning on spectacled eider survival rates
J. Barry Grand, Paul L. Flint, Margaret R. Petersen, Christine L. Moran
1998, Journal of Wildlife Management (62) 1103-1109
Spectacled eider (Somateria fischeri) populations on the Yukon-Kuskokwim Delta (Y-K Delta), Alaska, declined rapidly through the 1980s, and low adult female survival was suggested as the likely cause of the decline. We used mark-resighting techniques to study annual survival rates of adult female spectacled eiders at 2 sites on the...
Forage site selection by lesser snow geese during autumn staging on the Arctic National Wildlife Refuge, Alaska
Jerry W. Hupp, Donna G. Robertson
1998, Wildlife Monographs (138) 1-40
Lesser snow geese (Chen caerulescens caerulescens) of the Western Canadian Arctic Population feed intensively for 2-4 weeks on the coastal plain of the Beaufort Sea in Canada and Alaska at the beginning of their autumn migration. Petroleum leasing proposed for the Alaskan portion of the staging area on the Arctic...
Settlement rate of lead shot in tundra wetlands
Paul L. Flint
1998, Journal of Wildlife Management (62) 1099-1102
Several species of breeding waterfowl have been shown to be exposed to lead shot on the Yukon-Kuskokwim (Y-K) Delta, Alaska. I 'seeded' experimental plots with number 4 lead shot to determine the settlement rate of shot in wetland types commonly used by foraging waterfowl. I resampled plots for 3 years,...
Survival costs of chick rearing in black-legged kittiwakes
Gregory H. Golet, David B. Irons, James A. Estes
1998, Journal of Animal Ecology (67) 827-841
1. We tested for costs of chick rearing in the black-legged kittiwake Rissa tridactyla (Linnaeus) by removing entire clutches from 149 of 405 randomly selected nests, in which one or both mates was colour-banded. After the manipulation, we monitored adult nest attendance and body condition at unmanipulated and manipulated nests,...
Attraction of brown bears to red pepper spray deterrent: Caveats for use
Tom S. Smith
1998, Wildlife Society Bulletin (26) 92-94
Humans in brown bear (Ursus arctos) country may unexpectedly encounter hears with sometimes harmful consequences. Firearms may be an effective defense, but they destroy bears, their use is illegal in most national parks, and many people prefer not to carry them, Consequently, nonlethal bear deterrents have long been sought as...
Tectonic setting of synorogenic gold deposits of the Pacific Rim
R.J. Goldfarb, G.N. Phillips, W. J. Nokleberg
1998, Ore Geology Reviews (13) 185-218
More than 420 million oz of gold were concentrated in circum-Pacific synorogenic quartz loades mainly during two periods of continental growth, one along the Gondwanan margin in the Palaeozoic and the other in the northern Pacific basin between 170 and 50 Ma. These ores have many features in common and...
Evaluation of radio-tracking and strip transect methods for determining foraging ranges of Black-Legged Kittiwakes
William D. Ostrand, G.S. Drew, R.M. Suryan, L.L. McDonald
1998, The Condor (100) 709-718
We compared strip transect and radio-tracking methods of determining foraging range of Black-legged Kittiwakes (Rissa tridactyla). The mean distance birds were observed from their colony determined by radio-tracking was significantly greater than the mean value calculated from strip transects. We determined that this difference was due to two sources of...
Developmental geology of coalbed methane from shallow to deep in Rocky Mountain basins and in Cook Inlet-Matanuska Basin, Alaska, USA and Canada
R. C. Johnson, R. M. Flores
1998, International Journal of Coal Geology (35) 241-282
The Rocky Mountain basins of western North America contain vast deposits of coal of Cretaceous through early Tertiary age. Coalbed methane is produced in Rocky Mountain basins at depths ranging from 45 m (150 ft) to 1981 m (6500 ft) from coal of lignite to low-volatile bituminous rank. Although some...
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...
Causes of disease in Pacific herring from Prince William Sound, Alaska, during fall 1996 and spring 1997
G.D. Marty, P.K. Hershberger, E.F. Freiberg, T.R. Meyers, G. Carpenter, D.E. Hinton
1998, Report
No abstract available ...
Double-stocking for overcoming damage to conifer seedlings by pocket gophers
Richard M. Engeman, Richard M. Anthony, Victor G. Barnes Jr., Heather W. Krupa, James Evans
1998, Crop Protection (17) 687-690
A 5-yr study was conducted on national forests in Idaho and Oregon to evaluate how doubling the seedling stocking rate of lodgepole pine (Pinus contorta) would relate to 5-year survival and the uniformity of distribution of seedlings in the presence of northern pocket gopher (Thomomys talpoides) damage. Either 4 or...
Damage reduction to ponderosa pine seedlings from northern pocket gophers by vegetation management through grass seeding and herbicide treatment
Richard M. Engeman, V.G. Barnes, R.M. Anthony, Heather W. Krupa
1998, International Biodeterioration and Biodegradation (42) 115-121
2,4-D herbicide treatment was applied to 2 treatment units to remove the forbs that are the preferred food of pocket gophers. One of these units also was seeded with grasses prior to the 2,4-D treatment. The effect of 2,4-D and grass seeding plus 2,4-D treatments were compared to an untreated...
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...
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...
Sexual attitudes at northern latitudes
Richard B. Lanctot
1998, Natural History (107) 72-75
Spreading his wings to reveal their pearly white undersides, the male buff-breasted sandpiper tilted his head to the sky, puffed out his chest, and uttered a series of soft "tick-ticks.” He then proceeded to stamp his feet and vibrate his wings as if the ground were quaking beneath him. Soon,...
Electrocardiographic consequences of a peripatetic lifestyle in gray wolves (Canis lupus)
Peter Constable, Ken Hinchcliff, Nick Demma, Margaret Callahan, Bruce W. Dale, Kevin Fox, Layne G. Adams, Ray Wack, Lynn Kramer
1998, Comparative Biochemistry and Physiology, Part A: Molecular & Integrative Physiology (120) 557-563
Cardiac chamber enlargement and hypertrophy are normal physiologic responses to repetitive endurance exercise activity in human beings and domestic dogs. Whether similar changes occur in wild animals as a consequence of increased activity is unknown. We found that free-ranging gray wolves (Canis lupus, n=11), the archetypical endurance athlete, have electrocardiographic...
Male traits, mating tactics and reproductive success in the buff-breasted sandpiper, Tryngites subruficollis
Richard B. Lanctot, Patrick J. Weatherhead, Bart Kempenaers, Kim T. Scribner
1998, Animal Behaviour (56) 419-432
Buff-breasted sandpipers use a variety of mating tactics to acquire mates, including remaining at a single lek for most of the breeding season, attending multiple leks during the season, displaying solitarily or displaying both on leks and solitarily. We found that differences in body size, body condition, fluctuating asymmetry scores,...
1997 Annual Report on Alaska's Mineral Resources
Jill L. Schneider
1998, Circular 1154
Land cover mapping of the National Park Service northwest Alaska management area using Landsat multispectral and thematic mapper satellite data
C. J. Markon, Sara Wesser
1998, Open-File Report 2000-51
A land cover map of the National Park Service northwest Alaska management area was produced using digitally processed Landsat data. These and other environmental data were incorporated into a geographic information system to provide baseline information about the nature and extent of resources present in this northwest Alaskan environment.This report...
Single-edition quadrangle maps
Water Resources Division, U.S. Geological Survey
1998, Fact Sheet 094-98
In August 1993, the U.S. Geological Survey's (USGS) National Mapping Division and the U.S. Department of Agriculture's Forest Service signed an Interagency Agreement to begin a single-edition joint mapping program. This agreement established the coordination for producing and maintaining single-edition primary series topographic maps for quadrangles containing National Forest System...
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...
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
U.S. Geological Survey Activities Related to American Indians and Alaska Natives; Fiscal Year 1997
Water Resources Division, U.S. Geological Survey
1997, Report
No abstract available....
