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: 3087
Use of wetland habitats by birds in the National Petroleum Reserve-Alaska Use of wetland habitats by birds in the National Petroleum Reserve-Alaska
No abstract available.
Authors
Dirk V. Derksen, Thomas C. Rothe, William D. Eldridge
The United States Geological Survey in Alaska: Accomplishments during 1979 The United States Geological Survey in Alaska: Accomplishments during 1979
This circular describes the 1980 programs of the U.S. Geological Survey in Alaska. A brief description of the Alaskan operations of each major division of the Survey is followed by project descriptions arranged by geographic regions in which the work takes place. The mission of the Geological Survey is to identify the Nation 's land, water, energy, and mineral resources; to classify...
Birds of the northcentral Alaska Peninsula, 1976-1980 Birds of the northcentral Alaska Peninsula, 1976-1980
Between spring 1976 and fall 1980 we studied the occurrence, abundance, and habitat use of birds over a 2000 square km segment of the northcentral Alaska Peninsula. During this period observers were present 473 days and obtained records for all seasons. A total of 125 species was recorded; 63% (79 of 125) were water-associated. The breeding avifauna was found to be a mixture of Panboreal...
Authors
Robert E. Gill, Margaret R. Petersen, Paul D. Jorgensen
Observations of wing-feather molt and summer feeding ecology of Steller's Eiders at Nelson Lagoon, Alaska Observations of wing-feather molt and summer feeding ecology of Steller's Eiders at Nelson Lagoon, Alaska
The population size, moult chronology, food habits, and feeding behaviour of Steller's Eiders Polysticta stelleri were studied at Nelson Lagoon, Alaska from May to October 1977. Sub-adults were flightless from late July to late August and the adult males were flightless from late August to mid September. Adult females were rarely flightless at Nelson Lagoon but commonly flightless at...
Authors
Margaret R. Petersen
Geological Survey research 1980 Geological Survey research 1980
A summary of recent significant scientific and economic results accompanied by a list of geologic, hydrologic, and cartographic investigations in progress.
Authors
Water Resources Division U.S. Geological Survey
Late Mesozoic and Cenozoic tectonics and the age of porphyry copper prospects: Chignik and Sutwik Island quadrangles, Alaska Peninsula Late Mesozoic and Cenozoic tectonics and the age of porphyry copper prospects: Chignik and Sutwik Island quadrangles, Alaska Peninsula
No abstract available.
Authors
Frederic H. Wilson
Viral erythrocytic necrosis: Some physiological consequences of infection in chum salmon (Oncorhynchus keta) Viral erythrocytic necrosis: Some physiological consequences of infection in chum salmon (Oncorhynchus keta)
Erythroid cells in chum salmon (Oncorhynchus keta) susceptible to infection with erythrocytic necrosis virus (ENV) were examined by light and electron microscopy. Cells of stages II, III, IV, V, and VI contained complete eyrthrocytic necrosis virions in the cytoplasm. Viruses closely resembling ENV were also detected in the nuclei of some erythroblasts. Some secondary consequences of ENV...
Authors
John R. MacMillan, Daniel M. Mulcahy, Marsha L. Landolt
Channelization and livestock impacts on salmonid habitat and biomass in western Washington Channelization and livestock impacts on salmonid habitat and biomass in western Washington
No abstract available.
Authors
D.W. Chapman, E. Knudsen
Dispersal and migratory patterns of San Francisco Bay produced herons, egrets, and terns Dispersal and migratory patterns of San Francisco Bay produced herons, egrets, and terns
San Francisco Bay, California, including its fringing marshes, supports a large and diverse water related avifauna (Grinnell and Wythe 19271 Sibley 1952, Gill 1973, 1977). Certain of man's alterations of the Bay's shallower wetlands have resulted in increased habitat diversity which has allowed colonization by several species of birds including some colonial nesting species. The...
Authors
Robert E. Gill, L. Richard Mewaldt
Nesting ecology of Arctic loons Nesting ecology of Arctic loons
Arctic Loons were studied on the Yukon-Kuskokwim Delta, Alaska, from the time of their arrival in May to their departure in September, in 1974 and 1975. Pairs arrived on breeding ponds as soon as sufficient meltwater was available to allow their take-off and landing. Loons apparently do not initiate nests immediately after their arrival, even when nest-sites are available. Delayed egg...
Authors
Margaret R. Petersen
The United States Geological Survey in Alaska: Accomplishments during 1978 The United States Geological Survey in Alaska: Accomplishments during 1978
This circular describes the 1979 programs of the U.S. Geological Survey in Alaska. The mission of the Geological Survey is to identify the Nation 's land, water, energy, and mineral resources; to classify federally-owned mineral lands and water-power sites; to resolve the exploration and development of energy and natural resources on Federal and Indian lands; and to explore and appraise...