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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: 2885

Geologic studies in Alaska by the U.S. Geological Survey during 1987

This volume is a continuation of the annual United States Geological Survey (USGS) Circulars reporting results of work in progress on earth science investigations in Alaska. The series began in 1975 under the title "The United States Geological Survey in Alaska - Accomplishments during 19xx" and has continued since 1986 under the present title. The 40 short papers and the feature article presented

Effects of kelp forest removal on associated fish assemblages in central California

Visual surveys along subtidal belt transects were used to compare fish assemblages on an experimental and a control site before and after the removal of a canopy-forming kelp forest. The giant kelp Macrocystis pyrifera (L.) C.A. Agardh was removed at the holdfast from ≈ 1 ha of high relief structurally complex rock substratum. The abundance of seven species of fish, of which five were considered m
Authors
James L. Bodkin

Polar Bear

Polar bears are long-lived, late-maturing carnivores that have relatively low rates of reproduction and natural mortality. Their populations are susceptible to disturbance from human activities, such as the exploration and development of mineral resources or hunting. Polar bear populations have been an important renewable resource available to coastal communities throughout the Arctic for thousand
Authors
S.D. Amstrup

Effects of the 1982-83 El Niño – Southern Oscillation on Pacific Ocean bird populations

Seabird reproductive success, population size, and movements in the Pacific region responded dramatically to the 1982-83 El Niño – Southern Oscillation (ENSO). At sites within the North and South Pacific Gyres, the onset of seabird responses tracked oceanographic changes related to ENSO; to the north of the gyres, responses were delayed 1 yr. Reproductive failures and high adult mortality were det
Authors
David G. Ainley, H.R. Carter, Daniel W. Anderson, Kenneth T. Briggs, Malcom C. Coulter, F. Cruz, J.B. Cruz, C.A. Valle, S.I. Fefer, Scott A. Hatch, Elizabeth Anne Schreiber, Ralph W. Schreiber, N.G. Smith

Interactions between seabirds and fisheries in the North Pacific Ocean

Interactions between commercial fisheries and seabirds in the northern Pacific Ocean are increasing with rising consumption of fishery products. As fishing expands into remote areas previously not fished, additional populations of seabirds may be affected. Some interactions such as introduction of fish processing wastes into the environment may be beneficial for seabirds, while others such as comp
Authors
Linda L. Jones, Anthony R. DeGange

Fall migration of Ross' Gull (Rhodostethia rosea) in Alaskan Chukchi and Beaufort seas: Final report

Ross’ Gulls (Rhodostethia rosea) are a major component of the pelagic avifauna of the Alaskan Chukchi and Beaufort seas in fall. Until recently, however, their distribution, abundance, and phenology of occurrence in Alaskan waters was poorly known. Since 1970, a combination of shipboard, aerial, and land-based surveys has revealed the major features of this species’ post-breeding movements in Alas
Authors
George J. Divoky, Gerald A. Sanger, Scott A. Hatch, J. Christopher Haney

Populations, productivity, and feeding habits of seabirds on St. Lawrence Island, Alaska: Final report

A field camp was established at Kongkok Bay near the southwest cape of St. Lawrence Island and occupied continuously from 24 May to 2 September 1987. Permanent study plots were selected for both cliff and crevice-nesting species, and regular observations were made throughout the breeding season to document attendance patterns, breeding phenology, and success. Periodic collections of adults offshor
Authors
John F. Piatt, Scott A. Hatch, Bay D. Roberts, Wayne W. Lidster, John L. Wells, J. Christopher Haney

Applications of satellite telemetry to wildlife research and management in Alaska

Since 1984, the Alaska Fish and Wildlife Research Center, in cooperation with the Alaska Department of Fish and Game and several other agencies, has used the Argos Data Collection and Location System to address wildlife research and management problems in Alaska and other parts of North America. The use of satellite telemetry has overcome some of the logistical problems of working in remote areas
Authors
S.G. Fancy, R.B. Harris, David C. Douglas, L.F. Pank, Kenneth R. Whitten, Thomas R. McCabe, Steven C. Amstrup, G.W. Garner

Testing for individual variation in breeding success

I measured the breeding success of Northern Fulmars (Fulmarus glacialis) in 6 consecutive years at a colony in the Semidi Islands, western Gulf of Alaska (56°N, 156°W). I tabulated the frequency distribution of the number of years successful for a sample of 224 nest sites at which breeding occurred in all 6 yr. A consistently higher probability of success occurred in some sites than in others (Fig
Authors
Scott A. Hatch
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