Publications
USGS research activities relevant to Alaska have yielded more than 9400 historical publications. This page features some of the most recent newsworthy research findings.
Filter Total Items: 3089
Twenty-four hour behavior patterns and budgets of free-ranging reindeer in winter Twenty-four hour behavior patterns and budgets of free-ranging reindeer in winter
To obtain movement data on wild fulvous tree ducks (Dendrocygna bicolor) 165 immature pen-reared fulvous tree ducks were color-marked and released in three southeast Texas counties in July October 1969/70. Nine (5 percent) of the marked birds were recovered from 3 days to 9 months after release, and an additional 15 birds provided sight records. Many released birds apparently became...
Authors
W. B. Collins, T. S. Smith
Performance and utility of satellite telemetry during field studies of free-ranging polar bears in Alaska Performance and utility of satellite telemetry during field studies of free-ranging polar bears in Alaska
Satellite telemetry technology has been used during field studies of polar bears in Alaska since 1985. A total of 109 Platform Transmitter Terminals (PTT) have been deployed on free-ranging female polar bears that seasonally inhabit waters adjacent to the Alaskan coast. The PTTs transmitted locational and sensor data to TIROS-N polar-orbiting satellites during a duty cycle of 12 hours on...
Authors
Gerald W. Garner, Steven C. Amstrup, David C. Douglas, Craig L. Gardner
Reconnaissance geology and exploration geochemistry of King Cove, Alaska Peninsula Reconnaissance geology and exploration geochemistry of King Cove, Alaska Peninsula
No abstract available.
Authors
Gregory D. DuBois, Frederic H. Wilson, R. L. Detterman, R.T. Hopkins
Attendance patterns of murres at breeding sites: Implications for monitoring Attendance patterns of murres at breeding sites: Implications for monitoring
We studied attendance patterns (presence and absence at breeding sites) of common murres (Uria aalge) and thick-billed murres (U. lomvia) at a colony in the Semidi Islands, western Gulf of Alaska. The period from mid-laying through hatching was appropriate for censusing because counts were subject to the least amount of daily variation. Time of day and weather did not have large effects...
Authors
Scott A. Hatch, Martha A. Hatch
Geologic studies in Alaska by the U.S. Geological Survey, 1988 Geologic studies in Alaska by the U.S. Geological Survey, 1988
This volume continues the annual series of U.S. Geological Survey (USGS) reports on geologic investigations in Alaska. Since 1975, when the first of these collections of short papers appeared under the title "The United States Geological Survey in Alaska: Accomplishments during 1975," the series has been published as USGS circulars. This bulletin departs from the circular style, in part...
Extra-pair copulation in the greater white-fronted goose Extra-pair copulation in the greater white-fronted goose
Controlled experiments and quantitative field studies with both captive and wild waterfowl (Family Anatidae) have demonstrated that extra-pair copulations (EPCs, both forced and unforced) may be a viable alternative reproductive strategy for males (Mineau and Cooke 1979; Burns et al. 1980; Cheng et al. 1982, 1983; Afron 1985; Evarts and Williams 1987). In a review of EPCs in waterfowl...
Authors
Craig R. Ely
Nesting biology of pacific loons, Gavia pacifica, on the Yukon-Kuskokwim Delta, Alaska Nesting biology of pacific loons, Gavia pacifica, on the Yukon-Kuskokwim Delta, Alaska
The nesting biology of Pacific Loons, Gavia pacifica, was studied from 1973 to 1975 on the Yukon-Kuskokwim Delta, Alaska. Loons maintained territories on ponds throughout the pre-nesting period. Both adults incubated eggs and raised the young. Males incubated more than females during early incubation, and females more than males during late incubation. The female assumes much of the...
Authors
Margaret R. Petersen
Body composition and weight dynamics of wintering greater white-fronted geese Body composition and weight dynamics of wintering greater white-fronted geese
Adult greater white-fronted geese (Anser albifrons frontalis) wintering in southern Oregon and California increased or maintained body weight in autumn, lost weight from autumn through winter, and rapidly increased in weight before spring migration in late April. We documented significant annual differences in body weights for both sexes. We related seasonal changes in body weight to...
Authors
Craig R. Ely, Dennis G. Raveling
Populations, productivity, and feeding habits of seabirds at Cape Thompson, Alaska: Final report Populations, productivity, and feeding habits of seabirds at Cape Thompson, Alaska: Final report
Investigations of seabird population sizes and breeding biology were conducted at Cape Thompson from 1959 to 1961 during pre-development studies associated with the Atomic through 1982, the Alaskan Program (OCSEAP) supported determine whether changes Energy Commission’s “Project Chariot.” From 1976 Outer Continental Shelf Environmental Assessment efforts to recensus seabirds at Cape...
Authors
Brian S. Fadely, John F. Piatt, Scott A. Hatch, David G. Roseneau
Cytopathology and coagulopathy associated with viral erythrocytic necrosis in chum salmon Cytopathology and coagulopathy associated with viral erythrocytic necrosis in chum salmon
The 8-month cytopathologic progression of viral erythrocytic necrosis (VEN) disease in chum salmon Oncorhynchus keta is described. Single to multiple acidophilic, cytoplasmic viral inclusion bodies developed first in mature erythrocytes and then, within 1–2 months, all morphologically identifiable hemopoietic cell types contained VEN inclusions. Cytologic analysis indicated that...
Authors
John R. MacMillian, D. Mulcahy, M.L. Landolt
Pre-field study and mineral resource assessment of the Sleetmule quadrangle, southwestern Alaska Pre-field study and mineral resource assessment of the Sleetmule quadrangle, southwestern Alaska
No abstract available.
Authors
Marti L. Miller, H. E. Belkin, R. B. Blodgett, T. K. Bundtzen, J. W. Cady, R.J. Goldfarb, J. E. Gray, R. G. McGimsey, S. L. Simpson