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
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Year Published: 2017

Morphological and molecular characterization of Sarcocystis arctica-like sarcocysts from the Arctic fox (Vulpes lagopus) from Alaska, USA

The muscles of herbivores commonly harbor sarcocysts of parasites belonging to species in the genus Sarcocystis, but such muscle parasites are rare in carnivores. Here, we report Sarcocystis arctica-like sarcocysts in muscles of Arctic foxes (Vulpes lagopus) from Alaska, USA, for the first time. The tongues of 56 foxes were examined...

Cerqueira-Cézar, Camila K.; Thompson, Peter C.; Verma, Shiv K.; Mowery, Joseph; Calero-Bernal, Rafael; Antunes Murata, Fernando H.; Sinnett, David R.; Van Hemert, Caroline R.; Rosenthal, Benjamin M.; Dubey, Jitender P.
Cerqueira-Cézar, C. K., P. C. Thompson, S. Kumar Verma, J. Mowery, R. Calero-Bernal, F. H. Antunes Murata, D. R. Sinnett, C. R. Van Hemert, B. M. Rosenthal, and J. P. Dubey. 2017. Morphological and molecular characterization of Sarcocystis arctica-like sarcocysts from the Arctic fox (Vulpes lagopus) from Alaska, USA. Parasitology Research 116(7):1871-1878. doi:10.1007/s00436-017-5462-6

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Year Published: 2017

PeRL: A circum-Arctic Permafrost Region Pond and Lake database

Ponds and lakes are abundant in Arctic permafrost lowlands. They play an important role in Arctic wetland ecosystems by regulating carbon, water, and energy fluxes and providing freshwater habitats. However, ponds, i.e., waterbodies with surface areas smaller than 1. 0 × 104 m2, have not been inventoried on global and regional scales. The...

Muster, Sina; Roth, Kurt; Langer, Moritz; Lange, Stephan; Cresto Aleina, Fabio; Bartsch, Annett; Morgenstern, Anne; Grosse, Guido; Jones, Benjamin M.; Sannel, A.B.K.; Sjoberg, Ylva; Gunther, Frank; Andresen, Christian; Veremeeva, Alexandra; Lindgren, Prajna R.; Bouchard, Frédéric; Lara, Mark J.; Fortier, Daniel; Charbonneau, Simon; Virtanen, Tarmo A.; Hugelius, Gustaf; Palmtag, J.; Siewert, Matthias B.; Riley, William J.; Koven, Charles; Boike, Julia

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Year Published: 2017

Puffins reveal contrasting relationships between forage fish and ocean climate in the North Pacific

Long-term studies of predator food habits (i.e., ‘predator-based sampling’) are useful for identifying patterns of spatial and temporal variability of forage nekton in marine ecosystems. We investigated temporal changes in forage fish availability and relationships to ocean climate by analyzing diet composition of three puffin species (horned...

Sydeman, William J.; Piatt, John F.; Thompson, Sarah Ann; Garcia-Reyes, Marisol; Hatch, Scott A.; Arimitsu, Mayumi L.; Slater, Leslie; Williams, Jeffrey C.; Rojek, Nora A.; Zador, Stephani G.; Renner, Heather M.
Sydeman, W.J., J.F. Piatt, S.A. Thompson, M. Garcia-Reyes, S. Hatch, M.L. Arimitsu, L. Slater, J. Williams, N. Rojek, S.G. Zador, and H. Renner. 2017. Puffins reveal contrasting relationships between forage fish and ocean climate in the North Pacific. Fisheries Oceanography 26:4, 379-395. http://dx.doi.org/10.1111/fog.12204

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Year Published: 2017

Landsat-based trend analysis of lake dynamics across northern permafrost regions

Lakes are a ubiquitous landscape feature in northern permafrost regions. They have a strong impact on carbon, energy and water fluxes and can be quite responsive to climate change. The monitoring of lake change in northern high latitudes, at a sufficiently accurate spatial and temporal resolution, is crucial for understanding the underlying...

Nitze, Ingmar; Grosse, Guido; Jones, Benjamin M.; Arp, Christopher D.; Ulrich, Mathias; Federov, Alexander; Veremeeva, Alexandra

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Year Published: 2017

Younger-Dryas cooling and sea-ice feedbacks were prominent features of the Pleistocene-Holocene transition in Arctic Alaska

Declining sea-ice extent is currently amplifying climate warming in the Arctic. Instrumental records at high latitudes are too short-term to provide sufficient historical context for these trends, so paleoclimate archives are needed to better understand the functioning of the sea ice-albedo feedback. Here we use the oxygen isotope values of wood...

Gaglioti, Benjamin V.; Mann, Daniel H.; Wooller, Matthew J.; Jones, Benjamin M.; Wiles, Gregory C.; Groves, Pamela; Kunz, Michael L.; Baughman, Carson; Reanier, Richard E.

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Year Published: 2017

A genetic signature of the evolution of loss of flight in the Galapagos cormorant

INTRODUCTIONChanges in the size and proportion of limbs and other structures have played a key role in the evolution of species. One common class of limb modification is recurrent wing reduction and loss of flight in birds. Indeed, Darwin used the occurrence of flightless birds as an argument in favor of his theory of natural selection. Loss of...

Burga, Alejandro; Wang, Weiguang; Ben-David, Eyal; Wolf, Paul C.; Ramey, Andrew M.; Verdugo, Claudio; Lyons, Karen; Parker, Patricia G.; Kruglyak, Leonid
Alejandro Burga, Weiguang Wang, Eyal Ben-David, Paul C. Wolf, Andrew M. Ramey, Claudio Verdugo, Karen Lyons, Patricia G. Parker, Leonid Kruglyak. 2017. A genetic signature of the evolution of loss of flight in the Galapagos cormorant. Science Vol. 356, Issue 6341, DOI: 10.1126/science.aal3345

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Year Published: 2017

Migration trends of Sockeye Salmon at the northern edge of their distribution

Climate change is affecting arctic and subarctic ecosystems, and anadromous fish such as Pacific salmon Oncorhynchus spp. are particularly susceptible due to the physiological challenge of spawning migrations. Predicting how migratory timing will change under Arctic warming scenarios requires an understanding of how environmental factors drive...

Carey, Michael P.; Zimmerman, Christian E.; Keith, Kevin D.; Schelske, Merlyn; Lean, Charles; Douglas, David C.
Carey, M.P., C.E. Zimmerman, K.D. Keith, M. Schelske, C. Lean, D.C. Douglas. 2017. Migration trends of Sockeye Salmon at the northern edge of their distribution. Transactions of the American Fisheries Society. 146:791-802.

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Year Published: 2017

Duckling survival of mallards in Southland, New Zealand

The southern portion of New Zealand's South Island is a productive area for mallards (Anas platyrhynchos) despite a notable lack of permanent or semi-permanent wetlands. Most broods are reared in pastures that may or may not be flooded with ephemeral water. In recent years, there has been an increased conversion from continuous to sporadic grazing...

Garrick, Erin; Amundson, Courtney L.; Seddon, Phillip J.

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Year Published: 2017

Seasonal and spatial variabilities in northern Gulf of Alaska surface water iron concentrations driven by shelf sediment resuspension, glacial meltwater, a Yakutat eddy, and dust

Phytoplankton growth in the Gulf of Alaska (GoA) is limited by iron (Fe), yet Fe sources are poorly constrained. We examine the temporal and spatial distributions of Fe, and its sources in the GoA, based on data from three cruises carried out in 2010 from the Copper River (AK) mouth to beyond the shelf break. April data are the first to describe...

Crusius, John; Schroth, Andrew W.; Resing, Joseph A.; Cullen, Jay; Campbell, Robert W.
Crusius, J., A. W. Schroth, J. A. Resing, J. Cullen, and R. W. Campbell (2017), Seasonal and spatial variabilities in northern Gulf of Alaska surface water iron concentrations driven by shelf sediment resuspension, glacial meltwater, a Yakutat eddy, and dust, Global Biogeochem. Cycles, 31, doi:10.1002/2016GB005493.

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Year Published: 2017

Ecological change drives a decline in mercury concentrations in southern Beaufort Sea polar bears

We evaluated total mercury (THg) concentrations and trends in polar bears from the southern Beaufort Sea subpopulation from 2004 to 2011. Hair THg concentrations ranged widely among individuals from 0.6 to 13.3 μg g–1 dry weight (mean: 3.5 ± 0.2 μg g–1). Concentrations differed among sex and age classes: solitary adult females ≈ adult females...

McKinney, Melissa A.; Atwood, Todd C.; Pedro, Sara; Peacock, Elizabeth L.
McKinney, M.A., Atwood, T.C., Pedro, S., and Peacock, E., 2017, Ecological Change Drives a Decline in Mercury Concentrations in Southern Beaufort Sea Polar Bears: Environmental Science and Technology, vol. 51, no. 14, p. 7814-7822. doi: 10.1021/acs.est.7b00812

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Year Published: 2017

Seasonal movements of the Short-eared Owl (Asio flammeus) in western North America as revealed by satellite telemetry

The Short-eared Owl (Asio flammeus) is a widespread raptor whose abundance and distribution fluctuates in response to the varying amplitudes of its prey, which are predominately microtines. Previous efforts to describe the seasonal movements of Short-eared Owls have been hindered by few band recoveries and the species' cryptic and irruptive...

Johnson, James A.; Booms, Travis L.; DeCicco, Lucas H.; Douglas, David C.
Johnson, J.A., Booms, T.L., DeCicco, L.H., and Douglas, D.C., 2017, Seasonal movements of the Short-Eared Owl (Asio flammeus) in Western North America as revealed by satellite telemetry: Journal of Raptor Research, vol. 51, no. 2, p. 115-128. doi: 10.3356/JRR-15-81.1

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Year Published: 2017

Uncertainties in forecasting the response of polar bears to global climate change

Several sources of uncertainty affect how precisely the future status of polar bears (Ursus maritimus) can be forecasted. Foremost are unknowns about the future levels of global greenhouse gas emissions, which could range from an unabated increase to an aggressively mitigated reduction. Uncertainties also arise because different climate models...

Butterworth, Andy; Douglas, David C.; Atwood, Todd C.
Douglas, D.C. and Atwood, T.C., 2017, Uncertainties in forecasting the response of polar bears to global climate change: pp 463-473 in Marine Mammal Welfare: Human Induced Change in the Marine Environment and its Impacts on Marine Mammal Welfare, A. Butterworth (ed.). Springer, Cham, Switzerland. doi: 10.1007/978-3-319-46994-2_25

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
Fairweather fault lidar
June 5, 2016

Fairweather fault lidar

Fairweather fault lidar 

Alaska field team revisit Tocher's 1958  site
June 5, 2016

Alaska field team revisit Tocher's 1958 site

The field team revisited many of the same locations geologists  Don Tocher and Don Miller studied in 1958.

Three people standing next to a vertical trench dug in the side of a cliff
June 5, 2016

Alaska field crew next to a trench

The field crew studies various areas thoughout the fault. 

Five people walking across big rocks
June 5, 2016

Alaska field team walking to sample site

The field crew walked miles daily to research the Fairweather fault and surrounding areas.

Scientist inspecting permafrost
June 1, 2016

Inspecting Permafrost

USGS scientist Neal Pastick inspects a permafrost plot in North Slope of Alaska near Galbraith Lake.

Scientist laying cable in a field
June 1, 2016

Laying Ground Cable to Measure Permafrost

USGS scientist Burke Minsley and project partners from the U. Alaska Fairbanks lay ground cable to measure permafrost depth at Nome Creek site north of Fairbanks, Alaska.

A bird nest camouflaged in the grass
May 31, 2016

American Golden-Plover nest in dwarf shrub mat habitat

American Golden-Plover nest in dwarf shrub mat habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.

May 20, 2016

Shaking of Frontier Building — Anchorage, Alaska, During Mw7.1 Earthquake, January 24, 2016

This video presents a visualization of shaking that was recorded in the Frontier Building in Anchorage, Alaska, during the Mw7.1 earthquake, January 24, 2016, Iniskin, Alaska. It exhibits how a tall building behaves and performs during strong earthquake shaking. Note that relative to the height of the building, the motions are magnified by a factor of 300 to show

Euphausids and a shrimp from a trawl catch
May 18, 2016

Euphausids and a shrimp from a trawl catch

Euphausids and a shrimp from a trawl catch

Scientist pulling in the beginning of the mid-water trawl on the  R/V Alaskan Gyre
May 18, 2016

Erica Madison bringing in the mid-water trawl on the R/V Alaskan Gyre

Scientist pulling in the beginning of the mid-water trawl on the  R/V Alaskan Gyre

Salcha River debris near Salchaket
May 18, 2016

Salcha River debris near Salchaket

Salcha River debris near Salchaket

Scientist on the bow of the R/V Alaskan Gyre looking through binoculars
May 18, 2016

Scientist conducting marine bird and mammal survey

Scientists on the bow of the R/V Alaskan Gyre looking through binoculars

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.