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

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USGS research activities relevant to Alaska have yielded more than 9400 historical publications. This page features some of the most recent newsworthy research findings.

Search USGS publications for Alaska

Arctic Science for Decision Maker

2020 USGS Alaska Annual Science Report
Filter Total Items: 2,642
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Year Published: 2014

Demography and behavior of polar bears summering on land in Alaska

Polar bears (Ursus maritimus) in the southern Beaufort Sea population (SB) are spending increased time on the coastal North Slope of Alaska between July and October (Gleason and Rode 2010). The duration spent on land by polar bears, satellite collared on the sea-ice in the spring, during the summer and fall has also increased (USGS, unpublished...

Peacock, Elizabeth L.
Peacock, E. 2012. Demography and behavior of polar bears summering on land in Alaska. Progress Report for 2011 for Interagency Agreement No. M09PB00025 (Minerals Management Service). USGS Alaska Science Center, Anchorage, AK. 15 pp.

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Year Published: 2014

Estuarine removal of glacial iron and implications for iron fluxes to the ocean

While recent work demonstrates that glacial meltwater provides a substantial and relatively labile flux of the micronutrient iron to oceans, the role of high-latitude estuary environments as a potential sink of glacial iron is unknown. Here we present the first quantitative description of iron removal in a meltwater-dominated estuary. We find that...

Schroth, Andrew W.; Crusius, John; Hoyer, Ian; Campbell, Robert
Schroth, A.W., Crusius, J., Hoyer, I., Campbell, R., 2014. Estuarine removal of glacial iron and implications for iron fluxes to the ocean. Geophysical Research Letters 41, 3951-3958. DOI: 10.1002/2014gl060199

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Year Published: 2014

Evaluation of potential protective factors against metabolic syndrome in bottlenose dolphins:feeding and activity patterns of dolphins in Sarasota Bay, Florida

Free-ranging bottlenose dolphins (Tursiops truncatus) living in Sarasota Bay, Florida appear to have a lower risk of developing insulin resistance and metabolic syndrome compared to a group of dolphins managed under human care. Similar to humans, differences in diet and activity cycles between these groups may explain why Sarasota dolphins have...

Wells, Randall S.; McHugh, Katherine A.; Douglas, David C.; Shippee, Steve; McCabe, Elizabeth Berens; Barros, Nélio B.; Phillips, Goldie T.
Wells, R. S., K. A. McHugh, D. C. Douglas, S. Shippee, E. B. McCabe, N. B. Barros, and G. T. Phillips. 2013. Evaluation of potential protective factors against metabolic syndrome in bottlenose dolphins:Feeding and activity patterns of dolphins in Sarasota Bay, Florida. Frontiers in Endocrinology 4(139):1-16. doi:10.3389/fendo.2013.00139

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Year Published: 2014

Free-living waterfowl and shorebirds

No abstract available.

Mulcahy, Daniel M.

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Year Published: 2014

New ichnological, paleobotanical and detrital zircon data from an unnamed rock unit in Yukon-Charley Rivers National Preserve (Cretaceous: Alaska): Stratigraphic implications for the region

A paleontological reconnaissance survey on Cretaceous and Paleogene terrestrial units along the Yukon River drainage through much of east-central Alaska has provided new chronostratigraphic constraints, paleoclimatological data, and the first information on local biodiversity within an ancient, high-latitude ecosystem. The studied unnamed rock...

Fiorillo, Anthony R.; Fanti, Federico; Hults, Chad; Hasiotis, Stephen T

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Year Published: 2014

New imaging of submarine landslides from the 1964 earthquake near Whittier, Alaska, and a comparison to failures in other Alaskan fjords

The 1964 Alaska M w 9.2 earthquake triggered numerous submarine slope failures in fjords of southern Alaska. These failures generated local tsunamis, such as at Whittier, where they inundated the town within 4 min of the beginning of shaking. Run-up was up to 32 m, with 13 casualties. We collected new multibeam bathymetry and high-resolution...

Haeussler, Peter J.; Parsons, Thomas E.; Finlayson, David P.; Hart, Patrick J.; Chaytor, Jason D.; Ryan, Holly F; Lee, Homa J.; Labay, Keith A.; Peterson, Andrew; Liberty, Lee

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Year Published: 2014

Post-breeding migration of Dutch-breeding black-tailed godwits: timing, routes, use of stopovers, and nonbreeding destinations

Conservation of long-distance migratory shorebirds is complex because these species use habitats spread across continents and hemispheres, making identification of critical habitats and potential bottlenecks in the annual cycle especially difficult. The population of Black-tailed Godwits that breeds in Western Europe, Limosa limosa limosa,...

Hooijmeijer, Jos C. E. W.; Senner, Nathan R.; Tibbitts, T. Lee; Gill, Robert E.; Douglas, David C.; Bruinzeel, Leo W.; Wymenga, Eddy; Piersma, Theunis
Hooijmeijer, J., N.R. Senner, T.L. Tibbitts, R.E. Gill, Jr., D.C. Douglas, L.W. Bruinzeel, E. Wymenga, and T. Piersma. 2014. Post-breeding migration of Dutch-breeding black-tailed godwits: timing, routes, use of stopovers, and nonbreeding destinations. Ardea 101:141–152. DOI: 10.5253/078.101.0209

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Year Published: 2014

Sulfur and oxygen isotopic study of Paleozoic sediment-hosted Zn-Pb(-Ag-Au-Ba-F) deposits and associated hydrothermal alteration zones in the Nome Complex, Seward Peninsula, Alaska

Results of sulfur and oxygen isotope studies of sedimentary exhalative (SEDEX) Zn-Pb(-Ag-Au-Ba-F) deposits hosted in metamorphosed Paleozoic clastic and carbonate rocks of the Nome Complex, Seward Peninsula, Alaska, are consistent with data for similar deposits worldwide. Stable isotopic studies of the Nome Complex are challenging because the...

Shanks, W.C. Pat; Slack, John F.; Till, Alison B.; Thurston, Roland; Gemery-Hill, Pamela

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Year Published: 2014

Change-in-ratio

Change-in-ratio (CIR) methods are used to estimate parameters for ecological populations subject to differential removals from population subclasses. Subclasses can be defined according to criteria such as sex, age, or size of individuals. Removals are generally in the form of closely monitored sport or commercial harvests. Estimation is based on...

Udevitz, Mark S.
Udevitz, M. S. 2013. Change-in-ratio. Pages 372-374 in A. H. El-Shaarawi and W. W. Piegorsch, (eds.). Encyclopedia of Environmetrics, Volume 2. John Wiley & Sons New York City, NY, USA. doi:10.1002/9780470057339.vac015m.pub2

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Year Published: 2014

Variation in the response of an Arctic top predator experiencing habitat loss: Feeding and reproductive ecology of two polar bear populations

Polar bears (Ursus maritimus) have experienced substantial changes in the seasonal availability of sea ice habitat in parts of their range, including the Beaufort, Chukchi, and Bering Seas. In this study, we compared the body size, condition, and recruitment of polar bears captured in the Chukchi and Bering Seas (CS) between two periods (1986–1994...

Rode, Karyn D.; Regehr, Eric V.; Douglas, David C.; Durner, George M.; Derocher, Andrew E.; Thiemann, Gregory W.; Budge, Suzanne M.
Variation in the response of an Arctic top predator experiencing habitat loss: feeding and reproductive ecology of two polar bear populations; 2014; Article; Journal; Global Change Biology; Rode, Karyn D.; Regehr, Eric V.; Douglas, David C.; Durner, George; Derocher, Andrew E.; Thiemann, Gregory W.; Budge, Suzanne M.

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Year Published: 2014

Abdominally implanted satellite transmitters affect reproduction and survival rather than migration of large shorebirds

Satellite telemetry has become a common technique to investigate avian life-histories, but whether such tagging will affect fitness is a critical unknown. In this study, we evaluate multi-year effects of implanted transmitters on migratory timing and reproductive performance in shorebirds. Shorebirds increasingly are recognized as good models in...

Hooijmeijer, Jos C. E. W.; Gill, Robert E.; Mulcahy, Daniel M.; Tibbitts, T. Lee; Kentie, Rosemarie; Gerritsen, Gerrit J.; Bruinzeel, Leo W.; Tijssen, David C.; Harwood, Christopher M.; Piersma, Theunis
Abdominally implanted satellite transmitters affect reproduction and survival rather than migration of large shorebirds; 2014; Article; Journal; Journal of Ornithology; Hooijmeijer, Jos C. E. W.; Gill, Robert E., Jr.; Mulcahy, Daniel M.; Tibbitts, T. Lee; Kentie, Rosemarie; Gerritsen, Gerrit J.; Bruinzeel, Leo W.; Tijssen, David C.; Harwood, Christopher M.; Piersma, Theunis

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Year Published: 2014

Remote biopsy darting and marking of polar bears

Remote biopsy darting of polar bears (Ursus maritimus) is less invasive and time intensive than physical capture and is therefore useful when capture is challenging or unsafe. We worked with two manufacturers to develop a combination biopsy and marking dart for use on polar bears. We had an 80% success rate of collecting a tissue sample with a...

Pagano, Anthony M.; Peacock, Elizabeth L.; McKinney, Melissa A.
Remote biopsy darting and marking of polar bears; 2014; Article; Journal; Marine Mammal Science; Pagano, Anthony M.; Peacock, Elizabeth; McKinney, Melissa A.

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: 984
3 glaciers coming down from the mountains
October 2, 2002

Portage, Burns and Shakespeare glaciers in Southcentral Alaska

Portage Glacier (right), Burns Glacier (center), Shakespeare Glacier (left) in Southcentral Alaska from the air.

A sunset seen from Kaktovik, Alaska
September 13, 2002

A sunset seen from Kaktovik, Alaska

A sunset seen from Kaktovik, Alaska

Biologist pulling a beach seine on a side channel of the Yukon River
August 15, 2002

Beach seining on the Yukon River Delta

Jason Baker and Scott McLean pulling a beach seine in a side channel of the Yukon River

Image: Alaska Mountain Range
July 1, 2002

Alaska Mountain Range

Alaska mountain range.

Image: Alaska Mountain Range
July 1, 2002

Alaska Mountain Range

Alaska mountain range.

Image: Alaska Scenic View
June 30, 2002

Alaska Scenic View

Scenic view of Alaskan lake and mountains.

Brooks Range, Alaska: View southward from Fortress Mountain Formation on Atigun syncline
December 31, 2001

Fortress Mountain Formation, Brooks Range

View southward from Fortress Mountain Formation on Atigun syncline towards Brooks Range.  Trans-Alaska Pipeline, haul road, and Galbraith Lake in valley.  Location in Brooks Range foothills, about 90 miles southeast of Umiat.

Polar bear mother and two cubs on the Beaufort Sea ice.
January 16, 2001

Polar bear mother and two cubs on the Beaufort Sea ice

Polar bear mother and two cubs on the Beaufort Sea ice.

Looking upstream from mid channel of the John Wild River. Near Anaktuvuk, Alaska
April 18, 2000

John Wild River, near Anaktuvuk

Looking upstream from mid channel of the John Wild River. Near Anaktuvuk, Alaska.

A polar bear den
April 3, 2000

A polar bear den

A polar bear den

Image: Valley of Ten Thousand Smokes, Alaska
June 9, 1991

Valley of Ten Thousand Smokes, Alaska

View southeast from Overlook Cabin looking over the Valley of Ten Thousand Smokes. The pyroclastic and ash deposits that fill the valley remain nearly vegetation-free more than 100 years after the 1912 Novarupta-Katmai eruption.

Tule white-fronted goose in the Kahiltna Valley, Alaska, in 1984
December 31, 1984

Tule white-fronted goose in the Kahiltna Valley, Alaska, in 1984

Tule white-fronted goose in the Kahiltna Valley, Alaska, in 1984.

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.