Unified Interior Regions

Region 11: Alaska

Alaska Science Center

Alaska Science Center

4210 University Drive
Anchorage, AK 99508
Phone: (907) 786-7000

View Center Website

Volcano Science Center

Volcano Science Center

4230 University Drive
Anchorage, AK 99508
Phone: (907) 786-7497

View Center Website

Climate Adaptation Science Center

Climate Adaptation Science Center

4230 University Drive
Anchorage, AK 99508
Phone: 907-301-7830

View Center Website

Regions L2 Landing Page Tabs

Filter Total Items: 2,559
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Year Published: 2012

A horizon scanning assessment of current and potential future threats to migratory shorebirds

We review the conservation issues facing migratory shorebird populations that breed in temperate regions and use wetlands in the non-breeding season. Shorebirds are excellent model organisms for understanding ecological, behavioural and evolutionary processes and are often used as indicators of wetland health. A global team of experienced...

Sutherland, William J.; Alves, José A.; Amano, Tatsuya; Chang, Charlotte H.; Davidson, Nicholas C.; Finlayson, C. Max; Gill, Jennifer A.; Gill, Robert E.; González, Patricia M.; Gunnarsson, Tómas Grétar; Kleijn, David; Spray, Chris J.; Székely, Tamás; Thompson, Des B.A.
A horizon scanning assessment of current and potential future threats to migratory shorebirds; 2012; Article; Journal; Ibis; Sutherland, William J.; Alves, Jose A.; Amano, Tatsuya ; Chang, Charlotte H.; Davidson, Nicholas C.; Finlayson, C. Max; Gill, Jennifer A.; Gill, Robert E., Jr.; González, Patricia M.; Gunnarsson, Tómas Grétar; Kleijn, David ; Spray, Chris J.; Székely, Tamás ; Thompson, Des B. A.

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Year Published: 2012

Calving seismicity from iceberg-sea surface interactions

Iceberg calving is known to release substantial seismic energy, but little is known about the specific mechanisms that produce calving icequakes. At Yahtse Glacier, a tidewater glacier on the Gulf of Alaska, we draw upon a local network of seismometers and focus on 80 hours of concurrent, direct observation of the terminus to show that calving is...

Bartholomaus, T.C.; Larsen, C.F.; O'Neel, Shad; West, M.E.
Calving seismicity from iceberg-sea surface interactions; 2012; Article; Journal; Journal of Geophysical Research: Earth Surface; Bartholomaus, T. C.; Larsen, C. F.; O'Neel, S. ; West, M. E.

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Year Published: 2012

Drainage network structure and hydrologic behavior of three lake-rich watersheds on the Arctic Coastal Plain, Alaska

Watersheds draining the Arctic Coastal Plain (ACP) of Alaska are dominated by permafrost and snowmelt runoff that create abundant surface storage in the form of lakes, wetlands, and beaded streams. These surface water elements compose complex drainage networks that affect aquatic ecosystem connectivity and hydrologic behavior. The 4676 km2 Fish...

Arp, C.D.; Whitman, M.S.; Jones, Benjamin M.; Kemnitz, R.; Grosse, G.; Urban, F.E.
Drainage network structure and hydrologic behavior of three lake-rich watersheds on the Arctic Coastal Plain, Alaska; 2012; Article; Journal; Arctic, Antarctic and Alpine Research; Arp, C. D.; Whitman, M. S.; Jones, B. M.; Kemnitz, R. ; Grosse, G. ; Urban, F. E.

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Year Published: 2012

Habitat use and movement patterns of Northern Pintails during spring in northern Japan: the importance of agricultural lands

From 2006 to 2009, we marked 198 Northern Pintails (Anas acuta) with satellite transmitters on their wintering areas in Japan to study their migration routes and habitat use in spring staging areas. We hypothesized that the distribution of pintails during spring staging was influenced by patterns of land use and expected that the most frequently...

Yamaguchi, Noriyuki M.; Hupp, Jerry W.; Flint, Paul L.; Pearce, John M.; Shigeta, Yusuke; Shimada, Tetsuo; Hiraoka, Emiko N.; Higuchi, Hiroyoshi
Habitat use and movement patterns of Northern Pintails during spring in northern Japan: the importance of agricultural lands; 2012; Article; Journal; Journal of Field Ornithology; Yamaguchi, Noriyuki M.; Hupp, Jerry W.; Flint, Paul L.; Pearce, John M.; Shigeta, Yusuke ; Shimada, Tetsuo ; Hiraoka, Emiko N.; Higuchi, Hiroyoshi

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Year Published: 2012

Nuclear and mitochondrial markers reveal evidence for genetically segregated cryptic speciation in giant Pacific octopuses from Prince William Sound, Alaska

Multiple species of large octopus are known from the north Pacific waters around Japan, however only one large species is known in the Gulf of Alaska (the giant Pacific octopus, Enteroctopus dofleini). Current taxonomy of E. dofleini is based on geographic and morphological characteristics, although with advances in genetic technology that is...

Toussaint, Rebecca K.; Scheel, David; Sage, G. Kevin; Talbot, Sandra L.
Nuclear and mitochondrial markers reveal evidence for genetically segregated cryptic speciation in giant Pacific octopuses from Prince William Sound, Alaska; 2012; Article; Journal; Conservation Genetics; Toussaint, R. K.; Scheel, D. ; Sage, G. K.; Talbot, S. L.

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Year Published: 2012

Northern Fulmar (Fulmarus glacialis)

No abstract available

Mallory, Mark L.; Hatch, Scott A.; Nettleship, David N.

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Year Published: 2012

Changing Arctic ecosystems - measuring and forecasting the response of Alaska's terrestrial ecosystem to a warming climate

The Arctic Coastal Plain of northern Alaska is a complex landscape of lakes, streams, and wetlands scattered across low relief tundra that is underlain by permafrost. This region of the Arctic has experienced a warming trend over the past three decades, leading to thawing of on-shore permafrost and the disappearance of sea ice at an unprecedented...

Pearce, John M.; DeGange, Anthony R.; Flint, Paul L.; Fondell, Tom F.; Gustine, David D.; Holland-Bartels, Leslie E.; Hope, Andrew G.; Hupp, Jerry W.; Koch, Joshua C.; Schmutz, Joel A.; Talbot, Sandra L.; Ward, David H.; Whalen, Mary E.
Changing Arctic ecosystems--measuring and forecasting the response of Alaska's terrestrial ecosystem to a warming climate; 2012; FS; 2012-3144; Pearce, John; DeGange, Tony; Flint, Paul; Fondell, Tom; Gustine, David; Holland-Bartels, Leslie; Hope, Andrew; Hupp, Jerry; Koch, Josh; Schmutz, Joel; Talbot, Sandra; Ward, David; Whalen, Mary

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Year Published: 2012

Spatial genetic structure and asymmetrical gene flow within the Pacific walrus

Pacific walruses (Odobenus rosmarus divergens) occupying shelf waters of Pacific Arctic seas migrate during spring and summer from 3 breeding areas in the Bering Sea to form sexually segregated nonbreeding aggregations. We assessed genetic relationships among 2 putative breeding populations and 6 nonbreeding aggregations. Analyses of mitochondrial...

Sonsthagen, Sarah A.; Jay, Chadwick V.; Fischbach, Anthony S.; Sage, George K.; Talbot, Sandra L.
Spatial genetic structure and asymmetrical gene flow within the Pacific walrus; 2012; Article; Journal; Journal of Mammalogy; Sonsthagen, Sarah A.; Jay, Chadwick V.; Fischbach, Anthony S.; Sage, George K.; Talbot, Sandra L.

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Year Published: 2012

Walrus distributional and foraging response to changing ice and benthic conditions in the Chukchi Sea

Arctic species such as the Pacific walrus (Odobenus rosmarus divergens) are facing a rapidly changing environment. Walruses are benthic foragers and may shift their spatial patterns of foraging in response to changes in prey distribution. We used data from satellite radio-tags attached to walruses in 2009-2010 to map walrus foraging locations...

Jay, Chadwick V.; Grebmeier, Jacqueline M.; Fischbach, Anthony S.
Walrus distributional and foraging response to changing ice and benthic conditions in the Chukchi Sea; 2012; Organization Series; 818; Jay, Chadwick V.; Grebmeier, Jacqueline M.; Fischbach, Anthony S.

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Year Published: 2012

A simple method for in situ monitoring of water temperature in substrates used by spawning salmonids

Interstitial water temperature within spawning habitats of salmonids may differ from surface-water temperature depending on intragravel flow paths, geomorphic setting, or presence of groundwater. Because survival and developmental timing of salmon are partly controlled by temperature, monitoring temperature within gravels used by spawning...

Zimmerman, Christian E.; Finn, James E.
Zimmerman, C. E. and J. E. Finn. 2012. A simple method for in situ monitoring of water temperature in substrates used by spawning salmonids. Journal of Fish and Wildlife Management 3(2):288-295; e1944-687X. doi:10.3996/032012-JFWM-025

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Year Published: 2012

Chronic hydrocarbon exposure of harlequin ducks in areas affected by the Selendang Ayu oil spill at Unalaska Island, Alaska

We evaluated chronic exposure of harlequin ducks (Histrionicus histrionicus) to hydrocarbons associated with the 2004 M/V Selendang Ayu oil spill at Unalaska Island, Alaska. We measured levels of hepatic 7-ethoxyresorufin-O-deethylase activity (EROD) in liver biopsy samples as an indicator of hydrocarbon exposure in three oiled bays and one...

Flint, Paul L.; Schamber, J.L.; Trust, K.A.; Miles, A.K.; Henderson, J.D.; Wilson, B.W.
Chronic hydrocarbon exposure of harlequin ducks in areas affected by the Selendang Ayu oil spill at Unalaska Island, Alaska; 2012; Article; Journal; Environmental Toxicology and Chemistry; Flint, Paul L.; Schamber, J. L.; Trust, K. A.; Miles, A. K.; Henderson, J. D.; Wilson, B. W.

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Year Published: 2012

Food availability and offspring sex in a monogamous seabird: insights from an experimental approach

Sex allocation theory predicts that parents should favor offspring of the sex that provides the greatest fitness return. Despite growing evidence suggesting that vertebrates are able to overcome the constraint of chromosomal sex determination, the general pattern remains equivocal, indicating a need for experimental investigations. We used an...

Merkling, Thomas; Leclaire, Sarah; Danchin, Etienne; Lhuillier, Emeline; Wagner, Richard H.; White, Joël; Hatch, Scott A.; Blanchard, Pierrick
Food availability and offspring sex in a monogamous seabird: insights from an experimental approach; 2012; Article; Journal; Behavioral Ecology; Merkling, Thomas ; Leclaire, Sarah ; Danchin, Etienne ; Lhuillier, Emeline ; Wagner, Richard H.; White, Joël ; Hatch, Scott A.; Blanchard, Pierrick

Browse a selection of videos, audio clips, images, and more from a wide range of science topics covered by USGS!

"Science for a Changing World" - watch the short film here!

Documentary on walruses here!

Watch the first-ever footage of a polar bear on Arctic sea ice!

Join USGS geologists as they collect lava samples from Kilauea Volcano.

Watch researchers in the Arctic!

Filter Total Items: 988
Image: Sampling Stream Water in Denali National Park, Alaska

Sampling Stream Water in Denali National Park, Alaska

Ed Pfeifer of the USGS Southwest Geographic Science Team collecting water samples during field work for a study of Dall sheep habitat in Denali National Park, Alaska.

This image shows the darkest pixel values captured during 10 minutes of video.

Unalakleet video camera 1 dark image

Two video cameras overlook the coast from atop a windmill tower in Unalakleet, Alaska where they look westward over Norton Sound. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes. Today’s most recent image from camera 1 is shown here. Please note that it takes 10 minutes for the images to be posted, once they are collected by

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Clear day view of Iliamna IVE volcano

Iliamna IVE

Camera is co-located with seismic station IVE 2.7 miles (3.5 km) to the east south-east of Iliamna. Read more about Iliamna volcano.

This image shows the darkest pixel values captured during 10 minutes of video.

Unalakleet video camera 2 dark image

Two video cameras overlook the coast from atop a windmill tower in Unalakleet, Alaska where they look westward over Norton Sound. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes. Today’s most recent image from camera 2 is shown here. Please note that it takes 10 minutes for the images to be posted, once they are collected by

...

Stay up-to-date with what is happening in the Alaska Region by checking out our different social media accounts. You can also contact Alaska Regional Office staff or Center Directors for more information.