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: 3104
Alaska resource data file: Holy Cross quadrangle Alaska resource data file: Holy Cross quadrangle
No abstract available.
Authors
W. J. Keith, Marti L. Miller
Alaska resource data file: Iditarod quadrangle Alaska resource data file: Iditarod quadrangle
No abstract available.
Authors
W. J. Keith, Marti L. Miller
Alaska resource data file: Mount Michelson quadrangle Alaska resource data file: Mount Michelson quadrangle
No abstract available.
Authors
J. S. Kelly
Population, reproduction, and foraging of pigeon guillemots at Naked Island, Alaska, before and after the Exxon Valdez Oil Spill Population, reproduction, and foraging of pigeon guillemots at Naked Island, Alaska, before and after the Exxon Valdez Oil Spill
After the 1989 Exxon Valdez oil spill in Prince William Sound, Alaska, we studied pigeon guillemots Cepphus columba breeding just 30 km from the grounding site. The postspill population was 43% smaller than the prespill population, but we could not attribute the entire decline to the spill because a decline in this guillemot population may have predated the spill. However, relative...
Authors
Karen L. Oakley, Kathy J. Kuletz
Sea birds as proxies of marine habitats and food webs in the western Aleutian Arc Sea birds as proxies of marine habitats and food webs in the western Aleutian Arc
We propose that ocean conditions of the Near Islands in the western Aleutian Arc mimic those of the shallow continental shelf of the eastern Bering Sea to the extent that the marine community, including assemblages of forage fishes and their avian predators, has distinctly coastal characteristics. In contrast, marine avifauna and their prey at neighbouring Buldir Island are distinctly...
Authors
Alan M. Springer, John F. Piatt, Gus B. Van Vliet
Demographic characteristics of molting black brant near Teshekpuk Lake, Alaska Demographic characteristics of molting black brant near Teshekpuk Lake, Alaska
Molting Brant in the Teshekpuk Lake Special Area (TLSA) on the Arctic Coastal Plain of Alaska were studied from 1987 to 1992 using capture-mark-recapture techniques to determine origin, age and sex composition, return rates and site fidelity. Brant originated from 10 nesting colonies in Canada and Alaska. The captured birds were 76% adults and 57% males. Ninety-one percent of
Authors
K.S. Bollinger, D.V. Derksen
Mass and body-dimension relationships of polar bears in northern Alaska Mass and body-dimension relationships of polar bears in northern Alaska
Models developed from morphometric parameters are useful for estimating body mass (M) of captured wild ursids. The accuracy of those models, however, may depend on sex, season, and geographic location of the population. We tested the suitability of reported models to predict mass of polar bears (Ursus maritimus) captured in northern Alaska, but found that models developed for other...
Authors
George M. Durner, Steven C. Amstrup
Volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory 1995 Volcanic activity in Alaska and Kamchatka: Summary of events and response of the Alaska Volcano Observatory 1995
The Alaska Volcano Observatory (AVO) responded to eruptive activity or suspected volcanic activity (SVA) at 6 volcanic centers in 1995: Mount Martin (Katmai Group), Mount Veniaminof, Shishaldin, Makushin, Kliuchef/Korovin, and Kanaga. In addition to responding to eruptive activity at Alaska volcanoes, AVO also disseminated information for the Kamchatkan Volcanic Eruption Response Team...
Authors
Robert G. McGimsey, Christina A. Neal
Variation in egg size of the northern pintail Variation in egg size of the northern pintail
Egg size is an important determinant of reproductive investment by birds. For many species, total investment in a clutch is limited by the size of stored reserves (Ankney and MacInnes 1978, Esler and Grand 1994a). Egg size determines the unit by which these stored reserves are partitioned. Individual females in most species of waterfowl show a high repeatability for egg size, implying...
Authors
Paul L. Flint, J. Barry Grand
Monitoring the status of wild sea otter populations: field studies and techniques Monitoring the status of wild sea otter populations: field studies and techniques
No abstract available.
Authors
James L. Bodkin, Brenda E. Ballachey
Black brant from Alaska staging and wintering in Japan Black brant from Alaska staging and wintering in Japan
Black brant (Branta bernicla nigricans) nest in colonies in arctic Canada, Alaska, and Russia (Derksen and Ward 1993, Sedinger et al. 1993). Virtually the entire population stages in fall at Izembek Lagoon near the tip of the Alaska Peninsula (Bellrose 1976) before southward migration (Dau 1992) to winter habitats in British Columbia, Washington, Oregon, California, and Baja California...
Authors
Dirk V. Derksen, K.S. Bollinger, David H. Ward, J.S. Sedinger, Y. Miyabayashi
Explanation of fields used in the Alaska Resource Data File of mines, prospects, and mineral occurrences in Alaska Explanation of fields used in the Alaska Resource Data File of mines, prospects, and mineral occurrences in Alaska
Descriptions of mines, prospects, and mineral occurrences in the Alaska Resource Data File (ARDF) are published for individual U.S. Geological Survey 1:250,000 scale quadrangles in Alaska (see accompanying map) and are available for downloading from USGS World Wide Web site: http://www-rnrs-ak.wr.usgs.gov/ardf. These descriptions are divided into a number of fields which describe...
Authors
Water Resources Division U.S. Geological Survey