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: 2,376
Publication Thumbnail
Year Published: 2018

Effects of climate change on ecological disturbance in the northern Rockies

Disturbances alter ecosystem, community, or population structure and change elements of the biological and/or physical environment. Climate changes can alter the timing, magnitude, frequency, and duration of disturbance events, as well as the interactions of disturbances on a landscape, and climate change may already be affecting disturbance...

Halofsky, Jessica E.; Peterson, David L.; Loehman, Rachel A.; Bentz, Barbara J.; DeNitto, Gregg A.; Keane, Robert E.; Manning, Mary E.; Duncan, Jacob P.; Egan, Joel M.; Jackson, Marcus B.; Kegley, Sandra; Lockman, I. Blakey; Pearson, Dean E.; Powell, James A.; Shelly, Steve; Steed, Brytten E.; Zambino, Paul J.
Loehman, R.A., Bentz, B.J., DeNitto, G.A., Keane, R.E., Manning, M.E., Duncan, J.P., Egan, J.M., Jackson, M.B., Kegley, S., Lockman, I.B., Pearson, D.E., Powell, J.A., Shelly, S., Steed, B.E., and Zambino, P.J., 2017, Effects of climate change on ecological disturbance in the Northern Rockies, pages 115-141 in Halofsky, J.E. and Peterson, D.L., eds. Climate Change and Rocky Mountain Ecosystems; A Regional Assessment: Springer, Advances in Global Change Research, vol. 63. doi: 10.1007/978-3-319-56928-4_7

Publication Thumbnail
Year Published: 2018

Effects of climate change on forest vegetation in the northern Rockies

Increasing air temperature, through its influence on soil moisture, is expected to cause gradual changes in the abundance and distribution of tree, shrub, and grass species throughout the Northern Rockies, with drought tolerant species becoming more competitive. The earliest changes will be at ecotones between lifeforms (e.g., upper and lower...

Halofsky, Jessica E.; Peterson, David L.; Keane, Robert E.; Mahalovich, Mary Frances; Bollenbacher, Barry L.; Manning, Mary E.; Loehman, Rachel A.; Jain, Terrie B.; Holsinger, Lisa M.; Larson, Andrew J.
Keane, R.E., Mahalovich, M.F., Bollenbacher, B.L., Manning, M.E., Loehman, R.A., Jain, T.B., Holsinger, L.M., and Larson, A.J., 2017, Effects of climate change on forest vegetation in the Northern Rockies, pages 115-141 in Halofsky, J.E. and Peterson, D.L., eds. Climate Change and Rocky Mountain Ecosystems; A Regional Assessment: Springer, Advances in Global Change Research, vol. 63. doi: 10.1007/978-3-319-56928-4_7

Publication Thumbnail
Year Published: 2018

Spring fasting behavior in a marine apex predator provides an index of ecosystem productivity

The effects of declining Arctic sea ice on local ecosystem productivity are not well understood but have been shown to vary inter-specifically, spatially, and temporally. Because marine mammals occupy upper trophic levels in Arctic food webs, they may be useful indicators for understanding variation in ecosystem productivity. Polar bears (Ursus...

Rode, Karyn D.; Wilson, Ryan R.; Douglas, David C.; Muhlenbruch, Vanessa L; Atwood, Todd C.; Regehr, Eric V.; Richardson, Evan; Pilfold, Nicholas; Derocher, Andrew E.; Durner, George M.; Stirling, Ian; Amstrup, Steven C.; St Martin, Michelle; Pagano, Anthony M.; Simac, Kristin S.
Rode KD, Wilson RR, Douglas DC, et al. Spring fasting behavior in a marine apex predator provides an index of ecosystem productivity. Glob Change Biol. 2017;00:1–14. https://doi.org/10.1111/gcb.13933

Publication Thumbnail
Year Published: 2018

Influences of landscape heterogeneity on home-range sizes of brown bears

Animal space use is influenced by many factors and can affect individual survival and fitness. Under optimal foraging theory, individuals use landscapes to optimize high-quality resources while minimizing the amount of energy used to acquire them. The spatial resource variability hypothesis states that as patchiness of resources increases,...

Mangipane, Lindsey S.; Belant, Jerrold L.; Hiller, Tim L.; Colvin, Michael E.; Gustine, David; Mangipane, Buck A.; Hilderbrand, Grant V.
Influences of landscape heterogeneity on home-range sizes of brown bears: Mammalian Biology, In Press,. doi: 10.1016/j.mambio.2017.09.002

Publication Thumbnail
Year Published: 2018

Small-scale genetic structure in an endangered wetland specialist: possible effects of landscape change and population recovery

The effects of anthropogenic landscape change on genetic population structure are well studied, but the temporal and spatial scales at which genetic structure can develop, especially in taxa with high dispersal capabilities like birds, are less well understood. We investigated population structure in the Hawaiian gallinule (Gallinula galeata...

van Rees, Charles B.; Reed, J. Michael; Wilson, Robert E.; Underwood, Jared G.; Sonsthagen, Sarah A.
van Rees, C.B., Reed, J.M., Wilson, R.E., Underwood, J.G., and Sonsthagen, S.A., 2017, Small-scale genetic structure in an endangered wetland specialist: possible effects of landscape change and population recovery: Conservation Genetics, doi: 10.1007/s10592-017-1020-0

Publication Thumbnail
Year Published: 2018

Timelines and mechanisms of wildlife population recovery following the Exxon Valdez oil spill

Research and monitoring activities over the 28 years since the T/V Exxon Valdez ran aground and spilled oil into Prince William Sound, Alaska have led to an improved understanding of how wildlife populations were damaged, as well as the mechanisms and timelines of recovery. A key finding was that for some species, such as harlequin ducks...

Esler, Daniel N.; Ballachey, Brenda E.; Matkin, Craig O.; Cushing, Daniel; Kaler, Robert; Bodkin, James L.; Monson, Daniel; Esslinger, George G.; Kloecker, Kimberly A.
Esler, D., Ballachey, B.E., Matkin, C., Cushing, D., Kaler, R., Bodkin, J., Monson, D., Esslinger, G., and Kloecker, K. 2017 .Timelines and mechanisms of wildlife population recovery following the Exxon Valdez oil spill: Deep Sea Research Part II: Topical Studies in Oceanography. vol. , no. , p. . doi: 10.1016/j.dsr2.2017.04.007

Publication Thumbnail
Year Published: 2018

Tracing biogeochemical subsidies from glacier runoff into Alaska's coastal marine food webs

Nearly half of the freshwater discharge into the Gulf of Alaska originates from landscapes draining glacier runoff, but the influence of the influx of riverine organic matter on the trophodynamics of coastal marine food webs is not well understood. We quantified the ecological impact of riverine organic matter subsidies to glacier-marine habitats...

Arimitsu, Mayumi L.; Hobson, Keith A.; Webber, D'Arcy N.; Piatt, John F.; Hood, Eran W.; Fellman, Jason B.
Arimitsu, M.L., Hobson, K.A., Webber, D.N., Piatt, J.F., Hood, E.W. and Fellman, J.B., 2017. Tracing biogeochemical subsidies from glacier runoff into Alaska's coastal marine food webs: Global Change Biology, doi: 10.1111/gcb.13875

Publication Thumbnail
Year Published: 2017

The Peters Hills basin, a Neogene wedge-top basin on the Broad Pass thrust fault, south-central Alaska

The Neogene Peters Hills basin is a small terrestrial basin that formed along the south flank of the Alaska Range during a time in which there was regional shortening. The formation of the Peters Hills basin is consistent with it being a wedge-top basin that formed on top of the active southeast-vergent Broad Pass thrust fault. Movement along this...

Haeussler, Peter J.; Saltus, Richard W.; Stanley, Richard G.; Ruppert, Natalia; Lewis, Kristen; Karl, Susan M.; Bender, Adrian M.
Haeussler, P.J., Saltus, R.W., Stanley, R.G., Ruppert, N., Lewis, K., Karl, S.M. and Bender, A., 2017, The Peters Hills basin, a Neogene wedge-top basin on the Broad Pass thrust fault, south-central Alaska: Geosphere, vol. 13, no. 5, p. 1-25. https://doi.org/10.1130/GES01487.1

Publication Thumbnail
Year Published: 2017

Atmospheric deposition of glacial iron in the Gulf of Alaska impacted by the position of the Aleutian Low

Our understanding of glacial flour dust storm delivery of iron to the Gulf of Alaska (GoA) is limited. Here we interpret concurrent time series satellite, meteorological, and aerosol geochemical data from the GoA to examine how interannual variability in regional weather patterns impacts offshore aerosol glacial Fe deposition. In 2011, when a...

Schroth, Andrew W.; Crusius, John; Gasso, Santiago; Moy, Christopher M.; Buck, Nathan J.; Resing, Joseph A.; Campbell, Robert W.
Schroth, A. W., J. Crusius, S. Gassó, C. M. Moy, N. J. Buck, J. A. Resing, and R. W. Campbell (2017), Atmospheric deposition of glacial iron in the Gulf of Alaska impacted by the position of the Aleutian Low, Geophys. Res. Lett., 44, doi:10.1002/2017GL073565.

Publication Thumbnail
Year Published: 2017

Declining survival of black brant from subarctic and arctic breeding areas

Since the mid 1990s, the number of black brant (Branta bernicla nigricans; brant) nests on the Yukon‐Kuskokwim Delta (YKD), Alaska, USA, the historically predominant breeding area of brant, has declined steadily. This has caused researchers and managers to question if arctic breeding populations can compensate for the reduction in brant nests on...

Leach, Alan G.; Ward, David H.; Sedinger, James S.; Lindberg, Mark S.; Boyd, W. Sean; Hupp, Jerry W.; Ritchie, Robert J.
Leach, A. G., D. H. Ward, J. G. Sedinger, M. S. Lindberg, W. S. Boyd, J. W. Hupp, and R. J. Ritchie. 2017. Declining survival of black brant from subarctic and arctic breeding areas. Journal of Wildlife Management 81(7):1210-1218. doi:10.1002/jwmg.21284

Publication Thumbnail
Year Published: 2017

Population genetic structure and gene flow of Adélie penguins (Pygoscelis adeliae) breeding throughout the western Antarctic Peninsula

Adélie penguins (Pygoscelis adeliae) are responding to ocean–climate variability throughout the marine ecosystem of the western Antarctic Peninsula (WAP) where some breeding colonies have declined by 80%. Nuclear and mitochondrial DNA (mtDNA) markers were used to understand historical population genetic structure and gene flow given relatively...

Gorman, Kristen B.; Talbot, Sandra L.; Sonsthagen, Sarah A.; Sage, George K.; Gravley, Megan C.; Fraser, William R.; Williams, Tony D.
Gorman, K., Talbot, S., Sonsthagen, S., Sage, G., Gravely, M., Fraser, W., & Williams, T. (2017). Population genetic structure and gene flow of Adélie penguins (Pygoscelis adeliae) breeding throughout the western Antarctic Peninsula. Antarctic Science, 29(6), 499-510. doi:10.1017/S0954102017000293

Publication Thumbnail
Year Published: 2017

Status of natural and human environments: Chapter 3

This report present the results of the 2017 AMAP Assessment of Adaptation Actions for a changing Arctic (AACA): Perspectives form the Bering-Chukchi-Beaufort Region. This is one of three pilot study regions included in the AACA project. AACA is the first AMAP assessment dealing with adaptation actions and how to meet possible Arctic futures in...

Thorsteinson, Lyman K.; Outridge, Peter; Klepikov, Alexander; Ananichheva, Maria; Antonov, Evgeny; Bashkirova, Valeria; Chaschin, Valery; Gaden, Ashley; Hughes, Layla; Jia, Gensuo; Kikuchi, Takashi; Kivka, Kirill; Lima, James; Muir, Magdalena; Nikitina, Elena; Poussenkova, Nina; Pozhilova, Natalia; Sergeeva, Valentina; Skean, Vanessa; Somov, Alexey; Stern, Gary; Valeeva, Vilena
Attribution: , Region 11: Alaska
AMAP, 2017. Adaptation Actions for a Changing Arctic: Perspectives form the Bering-Chukchi-Beaufort Region. Arctic Monitoring and Assessment Programme (AMAP), Oslo, Norway. xiv +255pp

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: 989
Salmon River
October 27, 2016

Salmon River in Southeast Alaska

Salmon River is one of the transboundary watersheds of Southeast Alaska.

Kashwitna River sonar on a bridge
October 10, 2016

Kashwitna River sonar on a bridge

Kashwitna River sonar on a bridge

Many Dolly Varden char and Arctic grayling underwater in the Agashashok River
September 30, 2016

Dolly Varden and Arctic grayling in the Agashashok River

Underwater photo of a large school of Dolly Varden char and Arctic grayling in the Agashashok River.  These fish were part of the Hydro-Ecology of Arctic Thawing (HEAT) project.

Polar bear appears to walk on top of rippled gray water. Just behind it are very large breaking waves below a gray-blue sky.
September 18, 2016

Polar bear walks across flooded barrier island during Arctic storm

Adult polar bear walking across a recently overwashed barrier island during a large Arctic storm in September 2016. The barrier island is offshore of Barter Island on Alaska’s north coast. Polar bears typically rest on the barrier islands during the day and transit to the "bone pile" on Barter Island in the evenings to feast on whale carcass remnants supplied by local

...
Two people stand on a coastal bluff wearing heavy coats and hoods to keep warm, with waves crashing in the distance.
September 18, 2016

Coastal bluff study site prep

Two scientists on the Arctic coastal bluff preparing a study location with cameras that they hope will run continuously, collecting images.

A shorebird walking in small rocks on a shore
September 17, 2016

Pacific Golden-Plover standing on rocks near Big Creek, Alaska

Pacific Golden-Plover standing on rocks near Big Creek, Alaska.

The Agashashok River and Asik watershed
September 15, 2016

Agashashok River and Asik watershed

The Agashashok River and Asik watershed

Scientists operate equipment in snow-covered area.
September 6, 2016

GPR and Broadband Electromagnetic Induction

USGS scientists conduct field work in the foothills of the Brooks Range in Alaska. Hydrologist Eric White (left) is collecting ground-penetrating radar (GPR). Research Hydrologist Martin Briggs (right) is collecting broadband electromagnetic induction data. The flowing water visible in the background is groundwater discharging at a spring. (October 2016)

Tyndall Glacier, Alaska
September 6, 2016

Tyndall Glacier in Taan Fiord, Alaska

Tyndall Glacier in Taan Fiord, Alaska, is a modern day remnant of the glaciers that once flowed over the Gulf of Alaska.

Example of thawing landscapes and thermokarst at our field sites
September 5, 2016

Example of thawing landscapes and thermokarst at our field sites

Example of thawing landscapes and thermokarst at our field sites

Scientist pours a dye in a pit to see how water moves through soil
September 3, 2016

Soil tracer applied on burned hillslope

Brian Ebel pours a dye tracer into a pit to observe how water moves through soils on a burned hillslope.

Browse a collection of stories about prominent USGS scientists and projects in Alaska news.

2019 USGS Alaska Annual Science Report

Filter Total Items: 246
USGS
October 23, 2002

A new study by the U.S. Geological Survey (USGS) shows that the Castle Mountain fault in south-central Alaska may be ready to produce a strong magnitude 6 to 7 earthquake. The study, which examined the ancient earthquake history of the Castle Mountain fault, was just published in the October issue of the Geological Society of America Bulletin.

USGS science for a changing world logo
August 16, 2002

The immediate threat of overflow of water from Russell Lake caused by the advance of Hubbard Glacier, North America’s largest tidewater glacier, is over, according to reports from Dennis Trabant, a glaciologist with the U.S. Geological Survey.

USGS
August 16, 2002

The immediate threat of overflow of water from Russell Lake caused by the advance of Hubbard Glacier, North America’s largest tidewater glacier, is over, according to reports from Dennis Trabant, a glaciologist with the U.S. Geological Survey

USGS science for a changing world logo
June 18, 2002

North America’s largest calving glacier, Hubbard Glacier, is advancing and is close to blocking the entrance to Russell Fiord near Yakutat, Alaska, according to reports from Dennis Trabant, a glaciologist with the U. S. Geological Survey (USGS).

USGS
June 18, 2002

North America’s largest calving glacier, Hubbard Glacier, is advancing and is close to blocking the entrance to Russell Fiord near Yakutat, Alaska, according to reports from Dennis Trabant, a glaciologist with the U. S. Geological Survey (USGS).

USGS science for a changing world logo
May 16, 2002

U.S. Geological Survey scientists have completed a four-year re-assessment of the undiscovered oil and gas resources of the National Petroleum Reserve in Alaska (NPRA). The re-assessment includes an economic analysis of the undiscovered oil in the NPRA and shows that the federal part of NPRA contains significant volumes of technically recoverable oil and gas resources spread over a vast area.

USGS
May 16, 2002

U.S. Geological Survey (USGS) scientists have completed a four-year re-assessment of the undiscovered oil and gas resources of the National Petroleum Reserve in Alaska (NPRA). 

USGS
March 29, 2002

The U.S. Geological Survey (USGS) released today a summary report of more than 10 years of investigations on the biological resources of the Arctic National Wildlife Refuge in and near the 1002 Area, a region of about 1.5 million acres on the coastal plain in the northern part of the Arctic Refuge.

USGS science for a changing world logo
December 10, 2001

Of Alaska’s several-thousand valley glaciers, including nearly 700 that are named, fewer than 20 are advancing, according to a major study that U.S. Geological Survey (USGS) scientist Bruce F. Molnia will present at the American Geophysical Union Annual 2001 Fall Meeting, scheduled for Dec. 10-14 in San Francisco, CA.

USGS
December 10, 2001

Of Alaska’s several-thousand valley glaciers, including nearly 700 that are named, fewer than 20 are advancing, according to a major study that U.S. Geological Survey (USGS) scientist Bruce F. Molnia will present at the American Geophysical Union Annual 2001 Fall Meeting, scheduled for Dec. 10-14 in San Francisco, CA.

USGS
November 6, 2001

USGS scientist, Chris Potter, will summarize the USGS approach to hydrocarbon assessment in fold-thrust related structures beneath the Arctic National Wildlife Refuge (ANWR) coastal plain and the National Petroleum Reserve, foothills and coastal plain on Alaska’s North Slope.

USGS science for a changing world logo
September 20, 2001

Dr.William Seitz has assumed his duties as the U.S. Geological Survey’s (USGS) Deputy Regional Director for Alaska and the director of the Alaska Science Center.

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.