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: 2,369
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Year Published: 2017

Hydrologic impacts of changes in climate and glacier extent in the Gulf of Alaska watershed

High‐resolution regional‐scale hydrologic models were used to quantify the response of late 21st century runoff from the Gulf of Alaska (GOA) watershed to changes in regional climate and glacier extent. NCEP Climate Forecast System Reanalysis data were combined with five Coupled Model Intercomparison Project Phase 5 general circulation models (...

Beamer, Jordan; Hill, Dave; Mcgrath, Daniel; Arendt, Anthony A.; Kienholz, Christian

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Year Published: 2017

Tracer-based evidence of heterogeneity in subsurface flow and storage within a boreal hillslope

Runoff from boreal hillslopes is often affected by distinct soil boundaries, including the frozen boundary and the organic – mineral boundary (OMB), where highly porous and hydraulically-conductive organic material overlies fine-grained mineral soils. Viewed from the surface, ground cover appears as a patchwork on sub-meter scales, with thick,...

Koch, Joshua C.; Toohey, Ryan C.; Reeves, D.M.

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Year Published: 2017

Increased Arctic sea ice drift alters adult female polar bear movements and energetics

Recent reductions in thickness and extent have increased drift rates of Arctic sea ice. Increased ice drift could significantly affect the movements and the energy balance of polar bears (Ursus maritimus) which forage, nearly exclusively, on this substrate. We used radio-tracking and ice drift data to quantify the influence of increased drift on...

Durner, George M.; Douglas, David C.; Albeke, Shannon; Whiteman, John P.; Amstrup, Steven C.; Richardson, Evan; Wilson, Ryan R.; Ben-David, Merav
Durner GM, Douglas DC, Albeke SE, et al. Increased Arctic sea ice drift alters adult female polar bear movements and energetics. Glob Change Biol. 2017; 00: 1–14. https://doi.org/10.1111/gcb.13746

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Year Published: 2017

Autonomous acoustic recorders reveal complex patterns in avian detection probability

Avian point‐count surveys are typically designed to occur during periods when birds are consistently active and singing, but seasonal and diurnal patterns of detection probability are often not well understood and may vary regionally or between years. We deployed autonomous acoustic recorders to assess how avian availability for detection (i.e.,...

Thompson, Sarah J.; Handel, Colleen M.; McNew, Lance B.
Thompson, S. J., C. M. Handel, and L. B. McNew. 2017. Autonomous acoustic recorders reveal complex patterns in avian detection probability. Journal of Wildlife Management 81(7):1228-1241. doi:10.1002/jwmg.21285

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Year Published: 2017

Decadal declines in avian herbivore reproduction: density-dependent nutrition and phenological mismatch in the Arctic

A full understanding of population dynamics depends not only on estimation of mechanistic contributions of recruitment and survival, but also knowledge about the ecological processes that drive each of these vital rates. The process of recruitment in particular may be protracted over several years, and can depend on numerous ecological...

Ross, Megan V.; Alisaukas, Ray T.; Douglas, David C.; Kellett, Dana K.
Ross, M.V., Alisauskas, R.T., Douglas, D.C., and Kellett, D.K. 2017. Decadal declines in avian herbivore reproduction: density-dependent nutrition and phenological mismatch in the arctic: Ecology. vol. no. p. doi: 10.1002/ecy.1856

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Year Published: 2017

Genetic assessment of the effects of streamscape succession on coho salmon Oncorhynchus kisutch colonization in recently deglaciated streams

Measures of genetic diversity within and among populations and historical geomorphological data on stream landscapes were used in model simulations based on approximate Bayesian computation (ABC) to examine hypotheses of the relative importance of stream features (geomorphology and age) associated with colonization events and gene flow for coho...

Scribner, Kim T.; Soiseth, Chad; McGuire, Jeffrey J.; Sage, G. Kevin; Thorsteinson, Lyman K.; Nielsen, J. L.; Knudsen, E.
Scribner, K. T., C. Soiseth, J. J. McGuire, G. K. Sage, L. K. Thorsteinson, J. L. Nielsen, and E. E. Knudsen. 2017. Genetic assessment of the effects of streamscape succession on coho salmon Oncorhynchus kisutch colonization in recently deglaciated streams. Journal of Fish Biology 91(1):195-218. doi:10.1111/jfb.13337

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Year Published: 2017

Glacierized headwater streams as aquifer recharge corridors, subarctic Alaska

Arctic river discharge has increased in recent decades although sources and mechanisms remain debated. Abundant literature documents permafrost thaw and mountain glacier shrinkage over the past decades. Here we link glacier runoff to aquifer recharge via a losing headwater stream in subarctic Interior Alaska. Field measurements in Jarvis Creek (...

Lilledahl, Anna K.; Gadeke, Anne; O'Neel, Shad; Gatesman, T. A.; Douglas, T. A.
Liljedahl, A. K., A. Gädeke, S. O'Neel, T. A. Gatesman, and T. A. Douglas (2017), Glacierized headwater streams as aquifer recharge corridors, subarctic Alaska, Geophys. Res. Lett., 44, 6876–6885, doi:10.1002/2017GL073834.

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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.

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
Person in a trench
June 26, 2016

Investigating a trench across the Fairweather Fault

USGS Research Geologist Chris DuRoss investigates earthquake-faulted stratigraphy exposed in a hand-dug trench across the Fairweather Fault scarp. Location: Crillon Lake, Glacier Bay National Park, Alaska.

Two men walking on the edge of a thin forest
June 22, 2016

Walking along the Fairweather Fault scarp

USGS scientists Adrian Bender and Peter Haeussler walk along the base of a ~10 m tall escarpment formed during past ground-rupturing earthquakes on the Fairweather Fault. Location: Crillon Lake, Glacier Bay National Park, Alaska

A person in a forest of tall trees
June 20, 2016

Surveying the Fairweather Fault trace

USGS Geologist Adrian Bender surveys a trace of the 1958 Fairweather Fault earthquake surface rupture. The trace forms a linear, uphill-facing, 1-2 m tall escarpment flanked by trees that were likely tilted during the 1958 earthquake. Location: Crillon Lake, Glacier Bay National Park, Alaska.

A nest of a warbler in a bush
June 17, 2016

Yellow Warbler nest in a tall shrub thicket habitat

Yellow Warbler nest in a tall shrub thicket habitat.  This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.

Small bird in a tree
June 16, 2016

Male Arctic Warbler on the Seward Peninsula, Alaska

Male Arctic Warbler on the Seward Peninsula, Alaska. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.

Scientists setting a trap for gulls at the landfill
June 9, 2016

Setting a trap for gulls at the Soldotna landfill in June 2016

Scientists Andrew Ramey, Bjorn Olsen, and Jonas Bonnedahl (L to R) setting a trap for gulls at the Soldotna landfill in June 2016.

Glacier National Park
June 5, 2016

Glacier Bay National Park

View of Glacier Bay National Park from the air.

Fairweather Fault
June 5, 2016

Fairweather Fault

USGS research geologist Kate Scharer with her finger on the Fairweather Fault in southeast Alaska. The magnitude 7.8 Lituya Bay earthquake caused shaking that toppled trees along the fault, which left a break in the forest shown here.

South Crillon Glacier
June 5, 2016

South Crillon Glacier

Nearly 60 years after a magnitude 7.7 earthquake struck Lituya Bay, Alaska — leading to a tsunami that devastated the area — six U.S. Geological Survey geologists revisited the isolated region of Alaska, to pick up where their scientific predecessors left off. In this photo, members of the USGS research team pause to take in the view of South Crillon Glacier from a study

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South Crillon Glacier
June 5, 2016

South Crillon Glacier

Periodic calving of ice from the snout of South Crillon Glacier.

Glacier Bay National Park
June 5, 2016

Glacier Bay National Park

Trench site along the southern Fairweather Fault, in Glacier Bay National Park, Alaska. The alluvial fan at left consists of lake, stream channel and debris flow deposits impounded by the Fairweather Fault scarp, at right.

Alaska field team
June 5, 2016

Alaska field team

The field team included USGS geologists Rob Witter, Adrian Bender, Chris DuRoss, Peter Haeussler, Richard Lease and Kate Scharer

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.