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: 3111
Habitat characteristics of polar bear terrestrial maternal den sites in northern Alaska Habitat characteristics of polar bear terrestrial maternal den sites in northern Alaska
Polar bears (Ursus maritimus) give birth to and nurture their young in dens of ice and snow. During 1999-2001, we measured the structure of 22 dens on the coastal plain of northern Alaska after polar bear families had evacuated their dens in the spring. During the summers of 2001 and 2002, we revisited the sites of 42 maternal and autumn exploratory dens and recorded characteristics of...
Authors
George M. Durner, Steven C. Amstrup, Anthony S. Fischbach
Wandering Tattler (Tringa incana) Wandering Tattler (Tringa incana)
No abstract available
Authors
Robert E. Gill, Brian J. McCaffery, Pavel S. Tomkovich
Rock Sandpiper (Calidris ptilocnemis) Rock Sandpiper (Calidris ptilocnemis)
No abstract available
Authors
Robert E. Gill, Pavel S. Tomkovich, Brian J. McCaffery
Horned Puffin (Fratercula corniculata) Horned Puffin (Fratercula corniculata)
No abstract available
Authors
John F. Piatt, Alexander S. Kitaysky
Canada Goose (Branta canadensis) Canada Goose (Branta canadensis)
No abstract available
Authors
Thomas B. Mowbray, James S. Sedinger, Robert E. Trost
Harlequin duck (Histrionicus histrionicus) perspective: Harlequin duck population recovery following the Exxon Valdez oil spill: Progress, process, and constraints Harlequin duck (Histrionicus histrionicus) perspective: Harlequin duck population recovery following the Exxon Valdez oil spill: Progress, process, and constraints
Following the 1989 Exxon Valdez oil spill in Prince William Sound, Alaska, we studied the status of recovery of harlequin duck (Histrionicus histrionicus) populations during 1995-1998. We evaluated potential constraints to full recovery, including (1) exposure to residual oil, (2) food limitation, and (3) intrinsic demographic limitations on population growth rates. In this paper, we...
Authors
Daniel Esler, Timothy D. Bowman, Kimberly A. Trust, Brenda E. Ballachey, Thomas A. Dean, Stephen C. Jewett, Charles E. O’Clair
Tufted Puffin (Fratercula cirrhata) Tufted Puffin (Fratercula cirrhata)
No abstract available
Authors
John F. Piatt, Alexander S. Kitaysky
Sea otter (Enhydra lutris) perspective: Part C. Trophic linkages among sea otters and bivalve prey in Prince William Sound, Alaska, in the aftermath of the Exxon Valdez oil spill: Implications for community models in sedimentary habitats Sea otter (Enhydra lutris) perspective: Part C. Trophic linkages among sea otters and bivalve prey in Prince William Sound, Alaska, in the aftermath of the Exxon Valdez oil spill: Implications for community models in sedimentary habitats
We exploited the Exxon Valdez oil spill in Prince William Sound (PWS), Alaska, to evaluate effects of reduced sea otter densities on prey populations in sedimentary habitats. We considered the need for and characteristics of new models for trophic effects of sea otters on coastal marine benthic communities. We viewed evidence for nonlinear or uncertain patterns of prey response to...
Authors
Glenn R. VanBlaricom, Allan K. Fukuyama, Charles E. O’Clair, Daniel H. Monson, Stephen C. Jewett, Tamara K. Gage, Thomas A. Dean, James L. Bodkin
Sea otter (Enhydra lutris) perspective: Part B. Food limitation and the recovery of sea otters following the Exxon Valdez oil spill Sea otter (Enhydra lutris) perspective: Part B. Food limitation and the recovery of sea otters following the Exxon Valdez oil spill
We examined the potential role of food limitation in constraining recovery of sea otters in Prince William Sound, Alaska, following the Exxon Valdez oil spill. The spill resulted in the removal of a large number of sea otters in 1989, and as of 1998, the portion of the population in the heavily oiled northern Knight Island region had not fully recovered. Between 1996 and 1998, prey...
Authors
Thomas A. Dean, James L. Bodkin, Allan K. Fukuyama, Stephen C. Jewett, Daniel H. Monson, Charles E. O’Clair, Glenn R. VanBlaricom
Bristle-thighed Curlew (Numenius tahitiensis) Bristle-thighed Curlew (Numenius tahitiensis)
No abstract available
Authors
J.S. Marks, T. Lee Tibbitts, Robert E. Gill, Brian J. McCaffery
U.S. Geological Survey 2002 petroleum resource assessment of the National Petroleum Reserve in Alaska (NPRA): play maps and technically recoverable resource estimates U.S. Geological Survey 2002 petroleum resource assessment of the National Petroleum Reserve in Alaska (NPRA): play maps and technically recoverable resource estimates
This report provides a summary of the estimated volume of technically recoverable undiscovered oil and nonassociated gas resources for each of the 24 plays evaluated in the U.S. Geological Survey 2002 petroleum resource assessment of the NPRA (Bird and Houseknecht, 2002). It also provides a set of illustrations showing the stratigraphic and geographic location of each play. Additional...
Authors
Kenneth J. Bird, David W. Houseknecht
Alaska resource data file: Ophir quadrangle Alaska resource data file: Ophir quadrangle
No abstract available.
Authors
S.S. Dashevsky