Unified Interior Regions

Alaska

The Alaska Region represents a resource-rich, dynamic landscape shaped by volcanos, earthquakes, major rivers, and glaciers. Here, we conduct research to inform management of Alaska’s extensive natural resources, inform national Arctic energy policy, and provide scientific information to help others understand, respond to, and mitigate impacts from natural hazards.

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Filter Total Items: 203
Date published: June 18, 2018
Status: Active

Glaciers and Climate Project

Scientists with the Glaciers and Climate Project study many of the pertinent impacts that glaciers present to society, such as altering hydrologic cycles, contributing to sea-level rise, and creating environmental hazards. 

Contacts: Louis Sass, III
Date published: June 18, 2018
Status: Completed

Mountain Permafrost, Climate Change, and Rock Avalanches in Glacier Bay National Park, Alaska

Release Date: JUNE 18, 2018

We usually hear about landslides and avalanches that are caused by large amounts of rainfall, the shaking from earthquakes, or a volcanic eruption, but we may be hearing more about avalanches caused by the (seemingly innocuous) melting of ice in the coming years.

Date published: June 18, 2018
Status: Active

Alaska Resource Data File

The Alaska Resource Data File (ARDF) site provides descriptions of mines, prospects, and mineral occurrences for individual U.S. Geological Survey 1:250,000-scale quadrangles in Alaska.

Date published: June 11, 2018
Status: Active

Alaska Databases and Information Analysis

We provide GIS and database support for Alaska-based research projects, including database design, data capture, and maintenance, GIS analysis and display, and production of datasets and metadata for publication and data releases.

Contacts: Nora B Shew
Date published: May 22, 2018
Status: Active

Tectonic and Metallogenic Evolution of the Yukon-Tanana Upland, Alaska

The Yukon-Tanana upland in eastern interior Alaska is a geologically complex block containing deposits of base-metal, platinum-group-element, and gold-silver-copper mineralization. It also hosts numerous mineral systems that are known or suspected to contain critical minerals.

Date published: May 22, 2018
Status: Active

Petrology, Tectonic Setting, and Potential for Concentration of Rare Earth Elements (REE) and High Field Strength Elements (HFSE) in the High-K Darby and Kachauik Plutons, Seward Peninsula, Alaska

One of the geologic environments that host rare earth and other critical and strategic element deposits are alkaline intrusive rocks.

Date published: May 22, 2018
Status: Completed

Metallogeny and Tectonics of the Lake Clark and Neacola Mountains Region, South-central Alaska

Alaska hosts a well-documented belt of ore deposits that lies roughly parallel to the Alaska Range, beginning at the Alaska Peninsula in the southwest, continuing up through the Fairbanks Mining District in the north, and curving back into the Tintina Gold Belt on its eastern end. Known mineral prospects and occurrences include porphyry copper, intrusion-related gold, volcanogenic massive...

Date published: May 22, 2018
Status: Active

GIS Prospectivity Analysis for Critical Minerals in Ore-Forming Systems in Alaska

Alaska is dominated by a history of tectonic events that foster mobilization and concentration of a wide variety of mineral commodities that are critical to the US economy and are vital to national defense, renewable-energy, and emerging electronics technologies.

Date published: May 18, 2018
Status: Active

High Priority Species for Avian Influenza in Alaska

In early 2006, an Alaska Interagency Avian Influenza Working Group was formed to develop a ranking matrix for selecting priority species to be sampled within Alaska. Most wild bird species with populations that utilize areas of both Alaska and Asia were identified and considered in the ranking exercise. Based on scoring criteria, 28 target species were chosen for sampling. Alaska is a...

Date published: May 18, 2018
Status: Active

Bird Migration and Influenza

The movement and transmission of avian influenza viruses in wild birds may differ by the migratory nature of each host species.

Date published: May 18, 2018
Status: Active

Flood Frequency Studies in Alaska

 

Flood frequency statistics for streamgages and methods for estimating flood frequency statistics at ungaged sites in Alaska and conterminous basins in Canada are presented in U.S. Geological Survey Scientific Investigations Report 2016-5024. This report revised methods for obtaining basin characteristics and...

Contacts: Janet H Curran
Date published: May 18, 2018
Status: Active

Flow Duration and Low-Flow Frequency Studies in Alaska

Flow duration and low-flow frequency statistics for streamgages and methods for estimating flow-duration and low-flow frequency statistics at ungaged sites in Alaska and conterminous basins in Canada are presented in U.S. Geological Survey Water Resources Investigations Report 2003-4114.

Contacts: Janet H Curran
Filter Total Items: 186
Date published: June 14, 2019

Plasmodium Parasite Infection Data from Mosquitoes Collected in South-central Alaska, 2016

This data set includes two tables associated with a study of Plasmodium parasite infection in mosquitoes collected in south-central Alaska during the summer of 2016. The first table contains data regarding mosquito collection from three sites using CO2 baited CDC light traps. Mosquitoes were sorted and pooled according to collection date, genus, and location and subsequently screened for Plas...

Date published: April 28, 2019

National Petroleum Reserve, Alaska, (NPRA) Legacy Seismic Data Archive

The National Petroleum Reserve, Alaska, (NPRA) Legacy Data Archive represents one of the largest geological and geophysical data sets held by the U.S. Geological Survey.  Two exploration programs by the U.S. Navy and USGS collected over 12,000 line miles of seismic data and drilled 28 wells.  These programs generated a vast amount of data, analyses, and documents, much of which is presented...

Date published: April 22, 2019

Pacific (Gavia pacifica) and Yellow-billed Loon (G. adamsii) Mark-Resight Encounter History Data; National Petroleum Reserve-Alaska, 2011-2014

This data release contains a mark-resight encounter history table for Pacific and Yellow-billed loons from the Arctic Coastal Plain in northern Alaska, 2011-2014.

Date published: April 22, 2019

Development of Single Nucleotide Polymorphisms (SNPs) in Greater-White Fronted Geese (Anser albifrons) for Genetic Stock Identification on Wintering Grounds, 2019

This data set contains a description of 3 mitochondrial DNA and 93 nuclear DNA Single Nucleotide Polymorphism (SNP) loci and sequence information developed through double digest restriction-site associated DNA sequencing (ddRADseq) techniques for Greater White-Fronted Goose (Anser albifrons) that winter in California.

Date published: April 4, 2019

Sampling, Antimicrobial Resistance Testing, and Genomic Typing of E. coli in Gulls (Larus spp.) on the Kenai Peninsula, Alaska, 2016

This data set includes information on collections of fecal or cloacal samples from wild gulls (Larus spp.) at four locations on the Kenai Peninsula, Alaska, USA. Samples were also collected from sockeye salmon harvested as part of the personal-use fisheries on the Kenai and Kasilof Rivers. Samples were screened for Escherichia coli (E. coli) and tested for resistance to multiple antib

Date published: March 26, 2019

Allometrics of Baltic Tellin (Macoma balthica) bivalves from Cook Inlet, AK, and Baie de Somme, France, 2010-2011

This dataset contains two tables of sampling information and size and mass measurements of the Baltic Tellin (Macoma balthica) from sites in Cook Inlet, Alaska, USA, and the Baie de Somme estuary, France.

Date published: March 25, 2019

Bathymetry, acoustic backscatter, and minisparker seismic-reflection datasets collected southwest of Montague Island and southwest of Chenega, Alaska during field activity 2014-622-FA

High-resolution acoustic backscatter data, bathymetry data, single channel minisparker seismic-reflection data were collected by the U.S. Geological Survey (USGS) and the Alaska Department of Fish and Game in May of 2014 southwest of Chenega Island and southwest of Montague Island, Alaska. Data were collected aboard the Alaska Department of Fish and Game vessel, R/V Solstice.

Date published: March 21, 2019

Pacific Sand Lance Energy Density, Length, and Age, Prince William Sound, Alaska, 2012-2016

This data set documents the age, length, dry mass energy density, and dry mass of age-0 and age-1 Pacific sand lance captured in Prince William Sound Alaska each July from 2012 to 2016. The analysis of this data was published in von Biela et al. 2019 (doi:10.3354/meps12891).

Date published: March 11, 2019

Inventory Data of Lowland-Breeding Birds and Associated Vegetation Types on the Alaska Peninsula, 2004-2007

These are raw field data from a stratified random survey to inventory the birds breeding in lowlands (elevation below 100m) of the Alaska Peninsula, during summers 2004-2007. Data were collected at 792 survey points on 52 5-km x 5-km plots. The data are in: 1) four PDF files of digitally scanned original field data forms describing each of the 52 plots, and 2) a ZIP package containing 2824...

Date published: March 1, 2019

Inventory Data of Lowland-Breeding Birds and Associated Vegetation Types on the Alaska Peninsula, 2004-2007

These are raw field data from a stratified random survey to inventory the birds breeding in lowlands (elevation below 100m) of the Alaska Peninsula, during summers 2004-2007. Data were collected at 792 survey points on 52 5-km x 5-km plots. The data are in: 1) four PDF files of digitally scanned original field data forms describing each of the 52 plots, and 2) a ZIP package containi

Date published: February 28, 2019

Migratory Timing and Site Use of Marbled Godwits Breeding in Alaska, 2008–2015

This dataset contains migration timing and land-based location information from nine Marbled Godwits (Limosa fedoa beringiae) equipped with solar-powered satellite transmitters on breeding grounds near Ugashik, Alaska, in June of 2008. Transmitters were programmed with a duty cycle of 10 hr on and 48 hr off, yielding 10,858 locations (47-3,490 locations per bird, depending on th

Filter Total Items: 135
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Year Published: 2004

Ichthyophoniasis: An emerging disease of Chinook salmon in the Yukon River

Before 1985, Ichthyophonus was unreported among Pacific salmon Oncorhynchus spp. from the Yukon River; now it infects more than 40% of returning adult Chinook salmon O. tshawytscha. Overall infection prevalence reached about 45% in the Yukon River and about 30% in the Tanana River between 1999 and 2003. Mean infection prevalence was greater in...

Kocan, R.; Hershberger, P.; Winton, J.

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Year Published: 2004

Surface rupture and slip distribution of the Denali and Totschunda faults in the 3 November 2002 M 7.9 earthquake, Alaska

The 3 November 2002 Denali fault, Alaska, earthquake resulted in 341 km of surface rupture on the Susitna Glacier, Denali, and Totschunda faults. The rupture proceeded from west to east and began with a 48-km-long break on the previously unknown Susitna Glacier thrust fault. Slip on this thrust averaged about 4 m (Crone et al., 2004). Next came...

Haeussler, Peter J.; Schwartz, David P.; Dawson, Timothy E.; Stenner, Heidi D.; Lienkaemper, James J.; Sherrod, Brian; Cinti, Francesca R.; Montone, Paola; Craw, Patricia; Crone, Anthony J.; Personius, Stephen F.
Surface rupture and slip distribution of the Denali and totschunda faults in the 3 November 2002 M 7.9 earthquake, Alaska; 2004; Article; Journal; Bulletin of the Seismological Society of America; Haeussler, P. J.; Schwartz, D. P.; Dawson, T. E.; Stenner, H. D.; Lienkaemper, J. J.; Sherrod, B.; Cinti, F. R.; Montone, P.; Craw, P. A.; Crone, A. J.; Personius, S. F.

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Year Published: 2000

Potential seismic hazards and tectonics of the upper Cook Inlet basin, Alaska, based on analysis of Pliocene and younger deformation

The Cook Inlet basin is a northeast-trending forearc basin above the Aleutian subduction zone in southern Alaska. Folds in Cook Inlet are complex, discontinuous structures with variable shape and vergence that probably developed by right-transpressional deformation on oblique-slip faults extending downward into Mesozoic basement beneath the...

Haeussler, Peter J.; Bruhn, Ronald L.; Pratt, Thomas L.
Potential seismic hazards and tectonics of the upper Cook Inlet basin, Alaska, based on analysis of Pliocene and younger deformation; 2000; Article; Journal; Bulletin of the Geological Society of America; Haeussler, P. J.; Bruhn, R. L.; Pratt, T. L.

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Year Published: 1990

National water summary 1987: Hydrologic events and water supply and use

Water use in the United States, as measured by freshwater withdrawals in 1985, averaged 338,000 Mgal/d (million gallons per day), which is enough water to cover the 48 conterminous States to a depth of about 2.4 inches. Only 92,300 Mgal/d, or 27.3 percent of the water withdrawn, was consumptive use and thus lost to immediate further use; the...

Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.
Attribution: Water, Central Midwest Water Science Center, Dakota Water Science Center, , , Kansas Water Science Center, Minnesota Water Science Center, Pennsylvania Water Science Center, Texas Water Science Center, Utah Water Science Center, , Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Water Resources, Water Availability and Use Science Program, , , Region 4: Mississippi Basin, Region 6: Arkansas-Rio Grande-Texas-Gulf, , Region 7: Upper Colorado Basin, Region 1: North Atlantic-Appalachian, Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, U.S. Virgin Islands, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, United States of America
National water summary 1987: hydrologic events and water supply and use; 1990; WSP; 2350; Carr, Jerry E.; Chase, Edith B.; Paulson, Richard W.; Moody, David W.

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Year Published: 1977

Combined Ice and Water Balances of Maclure Glacier, California, South Cascade Glacier, Washington, and Wolverine and Gulkana Glaciers, Alaska, 1967 Hydrologic Year

Combined ice and water balances were measured in the 1967 hydrologic year (October 1-September 30) on four glaciers in western North America ranging in latitude from 37 deg to 63 deg N. This hydrologic year was characterized by heavier than normal winter precipitation in California and Washington and abnormally dry winter conditions in coastal...

Tangborn, Wendell V.; Mayo, Lawrence R.; Scully, David R.; Krimmel, Robert M.
Combined Ice and Water Balances of Maclure Glacier, California, South Cascade Glacier, Washington, and Wolverine and Gulkana Glaciers, Alaska, 1967 Hydrologic Year; 1977; PP; 715-B; Tangborn, Wendell V.; Mayo, Lawrence R.; Scully, David R.; Krimmel, Robert M.

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Year Published: 1971

Combined Ice and Water Balances of Gulkana and Wolverine Glaciers, Alaska, and South Cascade Glacier, Washington, 1965 and 1966 Hydrologic Years

Glaciers occur in northwestern North America between lat 37 deg and 69 deg N. in two major mountain systems. The Pacific Mountain System, near the west coast, receives large amounts of precipitation, has very mild temperatures, and contains perhaps 90 percent of the glacier ice. The Rocky Mountain or Eastern System, on the other hand, receives...

Meier, Mark Frederick; Tangborn, Wendell V.; Mayo, Lawrence R.; Post, Austin
Combined Ice and Water Balances of Gulkana and Wolverine Glaciers, Alaska, and South Cascade Glacier, Washington, 1965 and 1966 Hydrologic Years; 1971; PP; 715-A; Meier, Mark Frederick; Tangborn, Wendell V.; Mayo, Lawrence R.; Post, Austin

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Year Published: 1970

Effects of the earthquake of March 27, 1964, on the Alaska Railroad: Chapter D in The Alaska earthquake, March 27, 1964: effects on transportation, communications, and utilities

In the 1964 Alaska earthquake, the federally owned Alaska Railroad sustained damage of more than $35 million: 54 percent of the cost for port facilities; 25 percent, roadbed and track; 9 percent, buildings and utilities; 7 percent, bridges and culverts; and 5 percent, landslide removal. Principal causes of damage were: (1) landslides, landslide-...

McCulloch, David S.; Bonilla, Manuel G.
Effects of the earthquake of March 27, 1964, on the Alaska Railroad: Chapter D in The Alaska earthquake, March 27, 1964: effects on transportation, communications, and utilities; 1970; PP; 545-D; The Alaska earthquake, March 27, 1964: effects on transportation, communications, and utilities (Professional Paper 545); McCulloch, David S.; Bonilla, Manuel G.

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Year Published: 1970

The Alaska earthquake, March 27, 1964: lessons and conclusions

One of the greatest earthquakes of all time struck south-central Alaska on March 27, 1964. Strong motion lasted longer than for most recorded earthquakes, and more land surface was dislocated, vertically and horizontally, than by any known previous temblor. Never before were so many effects on earth processes and on the works of man available for...

Eckel, Edwin B.
The Alaska earthquake, March 27, 1964: lessons and conclusions; 1970; PP; 546; Eckel, Edwin B.

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Year Published: 1969

The Alaska earthquake, March 27, 1964: effects on communities

This is the second in a series of six reports that the U.S. Geological Survey published on the results of a comprehensive geologic study that began, as a reconnaissance survey, within 24 hours after the March 27, 1964, Magnitude 9.2 Great Alaska Earthquake and extended, as detailed investigations, through several field seasons. The 1964 Great...

Hansen, Wallace R.; Kachadoorian, Reuben; Coulter, Henry W.; Migliaccio, Ralph R.; Waller, Roger M.; Stanley, Kirk W.; Lemke, Richard W.; Plafker, George; Eckel, Edwin B.; Mayo, Lawrence R.
The Alaska earthquake, March 27, 1964: effects on communities; 1969; PP; 542; Hansen, Wallace R.; Kachadoorian, Reuben; Coulter, Henry W.; Migliaccio, Ralph R.; Waller, Roger M.; Stanley, Kirk W.; Lemke, Richard W.; Plafker, George; Eckel, Edwin B.; Mayo, Lawrence R.

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Year Published: 1969

Effects of the earthquake of March 27, 1964, on various communities: Chapter G in The Alaska earthquake, March 27, 1964: effects on communities

The 1964 earthquake caused wide-spread damage to inhabited places throughout more than 60,000 square miles of south-central Alaska. This report describes damage to all communities in the area except Anchorage, Whittier, Homer, Valdez, Seward, the communities of the Kodiak group of islands, and communities in the Copper River Basin; these were...

Plafker, George; Kachadoorian, Reuben; Eckel, Edwin B.; Mayo, Lawrence R.
Effects of the earthquake of March 27, 1964, on various communities: Chapter G in The Alaska earthquake, March 27, 1964: effects on communities; 1969; PP; 542-G; The Alaska earthquake, March 27, 1964: effects on communities (Professional Paper 542); Plafker, George; Kachadoorian, Reuben; Eckel, Edwin B.; Mayo, Lawrence R.

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Year Published: 1969

Erosion and deposition on a beach raised by the 1964 earthquake, Montague Island, Alaska: Chapter H in The Alaska earthquake, March 27, 1964: regional effects

During the 1964 Alaska earthquake, tectonic deformation uplifted the southern end of Montague Island as much as 33 feet or more. The uplifted shoreline is rapidly being modified by subaerial and marine processes. The new raised beach is formed in bedrock, sand, gravel, and deltaic bay-head deposits, and the effect of each erosional process was...

Kirkby, M.J.; Kirkby, Anne V.
Erosion and deposition on a beach raised by the 1964 earthquake, Montague Island, Alaska: Chapter H in The Alaska earthquake, March 27, 1964: regional effects; 1969; PP; 543-H; The Alaska earthquake, March 27, 1964: regional effects (Professional Paper 543); Kirkby, M. J.; Kirkby, Anne V.

Filter Total Items: 1,083
Canada goose (Branta canadensis), Anchorage, AK
July 27, 2019

Canada goose (Branta canadensis), Anchorage, AK

Canada goose (Branta canadensis), Anchorage, AK

Common Murre on the water in Kachemak Bay, Alaska
July 25, 2019

A Common Murre on the water near its colony in Kachemak Bay, Alaska

Northern Fulmars, Black-legged Kittiwakes, and Common Murres have all been tested for and contained harmful algal bloom (HAB) toxins in Alaska. Since 2015, the USGS has worked with a variety of stakeholders to develop testing methods and research projects to better understand the geographic extent, timing and impacts of algal toxins in Alaska marine ecosystems. For more

...
ANSEP student holds a red-throated loon
July 13, 2019

ANSEP student Jakob Sipary holds a red-throated loon, Alaska

Alaska Native Science and Engineering Program (ANSEP) student Jakob Sipary holds a red-throated loon on the Canning River Delta, Alaska, July 2019 as part of a USGS study on loon marine habitat use areas. Jakob was an intern for the summer with the U.S. Geological Survey.

Taku Glacier, Alaska retreat
July 9, 2019

Taku Glacier, Alaska retreat

2019 Juneau Icefield Research Program (JIRP) students during a four day and 83 kilometers ski traverse across Taku Glacier, carrying all their food, water, clothing, tents, and science gear as they help measure the mass balance along the way.

Central Arctic Herd caribou next to pipeline, North Slope of Alaska
June 29, 2019

Central Arctic Herd caribou within the Kuparuk oil field, Alaska

Central Arctic Herd caribou within the Kuparuk oil field on the North Slope of Alaska. The photo was taken during the summer mosquito harassment period. 

caribou crossing a road within the Kuparuk oil field, Alaska
June 29, 2019

Caribou crossing a road, within Kuparuk oil field, North Slope, Alaska

Central Arctic Herd - caribou crossing a road within the Kuparuk oil field on the North Slope of Alaska. The photo was taken during the summer mosquito harassment period. 

Kasilof River sonar on a bridge
June 28, 2019

Kasilof River sonar on a bridge

Kasilof River sonar on a bridge

Tazlina River bridge
June 28, 2019

Tazlina River bridge

Tazlina River bridge

A Common Murre holds a Pacific sand lance near Gull Island, Alaska
June 19, 2019

A Common Murre holds a Pacific sand lance near Gull Island in Alaska

Northern Fulmars, Black-legged Kittiwakes, and Common Murres have all been tested for and contained harmful algal bloom (HAB) toxins. Since 2015, the USGS has worked with a variety of stakeholders to develop testing methods and research projects to better understand the geographic extent, timing and impacts of algal toxins in Alaska marine ecosystems.

Beaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve
June 12, 2019

Beaver lodge and drained impoundment in tributary of the Noatak River

Beaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve

Impounded water above beaver dam on the Wrench Creek, Noatak National Preserve
June 12, 2019

Impounded water above beaver dam on the Wrench Creek

Impounded water above beaver dam on the Wrench Creek, Noatak National Preserve

Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
June 9, 2019

Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve

Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve

Filter Total Items: 279
Image: U.S. Fish and Wildlife Service Vessel Seen Through Bird Flock
July 16, 2015

The U.S. Geological Survey today released the North Pacific Pelagic Seabird Database — a massive online resource compiling the results of 40 years of surveys by biologists from the United States, Canada, Japan and Russia. The database documents the abundance and distribution of 160 seabird and 41 marine mammal species over a 10 million-square-mile region of the North Pacific.

Image: Long-Range Radar Station and Landfill
July 1, 2015

ANCHORAGE, Alaska — In a new study published today, scientists from the U.S. Geological Survey found that the remote northern Alaska coast has some of the highest shoreline erosion rates in the world. Analyzing over half a century of shoreline change data, scientists found the pattern is extremely variable with most of the coast retreating at rates of more than 1 meter a year.

Polar Bear Ecoregions: In the Seasonal Ice Ecoregion
June 30, 2015

Greenhouse gas emissions remain the primary threat to the preservation of polar bear populations worldwide. This conclusion holds true under both a reduced greenhouse gas emission scenario that stabilizes climate warming and another scenario where emissions and warming continue at the current pace, according to updated U.S. Geological Survey research models.

Mount McKinley landscape
June 15, 2015

A new GPS survey of Mount McKinley, the highest point in North America, will update the commonly accepted elevation of McKinley’s peak, 20,320 ft. The last survey was completed in 1953.

Map of basement domains
April 23, 2015

A map showing the many different pieces of Earth’s crust that comprise the nation’s geologic basement is now available from the U.S. Geological Survey.

USGS
April 8, 2015

A new scientific synthesis suggests a gradual, prolonged release of greenhouse gases from permafrost soils in Arctic and sub-Arctic regions, which may afford society more time to adapt to environmental changes, say scientists in a paper published in Nature today. 

Image: Polar Bear at Rest
April 1, 2015

ANCHORAGE, Alaska — A team of scientists led by the U.S. Geological Survey found that polar bears, increasingly forced on shore due to sea ice loss, may be eating terrestrial foods including berries, birds and eggs, but any nutritional gains are limited to a few individuals and likely cannot compensate for lost opportunities to consume their traditional, lipid-rich prey—ice seals.

Illustration showing migratory bird paths across the Pacific
March 31, 2015

ANCHORAGE, Alaska — In a new study published today, scientists from the U.S. Geological Survey and U.S. Fish and Wildlife Service harnessed a new type of DNA technology to investigate avian influenza viruses in Alaska.

USGS
March 18, 2015

Frozen bodies of ice cover nearly 10 percent of the state of Alaska, but the influence of glaciers on the environment, tourism, fisheries, hydropower, and other important Alaska resources is rarely discussed.

USGS
February 24, 2015

Kristin Timm, a designer with the Interior Department's Alaska Climate Science Center and the University of Alaska Fairbanks Scenarios Network for Alaska and Arctic Planning, is among 10 designers who were recently recognized internationally for excellence in science communication.