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: 2,418
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Year Published: 2017

Possible behavioural, energetic and demographic effects of displacement of red-throated divers

This report comprises the main points of discussion and agreement during a workshop, held in Edinburgh in May 2017, to discuss how displacement might affect individuals and the Red-throated diver population; with additional information added by the scientists following the workshop.

Dierschke, Volker; Furness, Robert W.; Gray, Carrie E.; Petersen, Ib Krag; Schmutz, Joel A.; Zydelis, Ramunas; Daunt, Francis
Dierschke, V., Furness, R.W., Gray, C.E., Petersen, I.K., Schmutz, J., Zydelis, R & Daunt, F., (2017), Possible Behavioural, Energetic and Demographic Effects of Displacement of Red-throated Divers, JNCC Report 605, ISSN 0963-8901

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Year Published: 2017

Vectors, hosts, and control measures for Zika virus in the Americas

We examine Zika virus (ZIKV) from an ecological perspective and with a focus on the Americas. We assess (1) the role of wildlife in ZIKV disease ecology, (2) how mosquito behavior and biology influence disease dynamics, and (3) how nontarget species and ecosystems may be impacted by vector control programs. Our review suggests that free-ranging,...

Thompson, Sarah J.; Pearce, John M.; Ramey, Andrew M.
Thompson, S. J., J. M. Pearce, and A. M. Ramey. 2017. Vectors, hosts, and control measures for Zika virus in the Americas. EcoHealth. 14(4):821-839 doi:10.1007/s10393-017-1277-2

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Year Published: 2017

Human-polar bear interactions in a changing Arctic: Existing and emerging concerns

The behavior and sociality of polar bears (Ursus maritimus) have been shaped by evolved preferences for sea ice habitat and preying on marine mammals. However, human behavior is causing changes to the Arctic marine ecosystem through the influence of greenhouse gas emissions that drive long-term change in ecosystem processes and via the presence of...

Atwood, Todd C.; Simac, Kristin S.; Breck, Stewart; York, Geoff; Wilder, James
Atwood, T.C., Simac, K., Breck, S.W., York, G., and Wilder, J., 2017, Human–polar bear interactions in a changing Arctic: Existing and emerging concerns: p. 397-418 in Marine Mammal Welfare: Human Induced Change in the Marine Environment and its Impacts on Marine Mammal Welfare, A. Butterworth (ed.), vol. 17, Springer, Cham, Switzerland. doi:10.1007/978-3-319-46994-2

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Year Published: 2017

Implications of rapid environmental change for polar bear behavior and sociality

Historically, the Arctic sea ice has functioned as a structural barrier that has limited the nature and extent of interactions between humans and polar bears (Ursus maritimus). However, declining sea ice extent, brought about by global climate change, is increasing the potential for human-polar bear interactions. Loss of sea ice habitat is driving...

Atwood, Todd C.
Atwood, T.C., 2017, Implications of rapid environmental change for polar bear behavior and sociality: p. 445-462 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

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Year Published: 2017

Monitoring the welfare of polar bear populations in a rapidly changing Arctic

Most programs for monitoring the welfare of wildlife populations support efforts aimed at reaching discrete management objectives, like mitigating conflict with humans. While such programs can be effective, their limited scope may preclude systemic evaluations needed for large-scale conservation initiatives, like the recovery of at-risk species....

Atwood, Todd C.; Duncan, Colleen G.; Patyk, Kelly A.; Sonsthagen, Sarah A.
Atwood, T.C., Duncan, C., Patyk, K.A., and Sonsthagen, S.A. , 2017, Monitoring the welfare of polar bear populations in a rapidly changing Arctic: Pages 503-529 in Marine Mammal Welfare: Human Induced Change in the Marine Environment and its Impacts on Marine Mammal Welfare, A. Butterworth (ed.), vol. 17, Springer, Cham, Switzerland. doi:10.1007/978-3-319-46994-2

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Year Published: 2017

Polar bears, Ursus maritimus

Polar bears are the largest of the eight species of bears found worldwide and are covered in a pigment-free fur giving them the appearance of being white. They are the most carnivorous of bear species consuming a high-fat diet, primarily of ice-associated seals and other marine mammals. They range throughout the circumpolar Arctic to the...

Rode, Karyn D.; Stirling, Ian
Rode, K.D., and I. Stirling. 2017. Polar bears. In: Encyclopedia of Marine Mammals, 3rd edition. B. Wursig, J.G.M. Thewissen, and K. Kovacs (eds). Academic Press.

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Year Published: 2017

A swath across the great divide: Kelp forests across the Samalga Pass biogeographic break

Biogeographic breaks are often described as locations where a large number of species reach their geographic range limits. Samalga Pass, in the eastern Aleutian Archipelago, is a known biogeographic break for the spatial distribution of several species of offshore-pelagic communities, including numerous species of cold-water corals, zooplankton,...

Konar, Brenda H.; Edwards, Matthew S.; Bland, Aaron; Metzger, Jacob; Ravelo, Alexandra; Traiger, Sarah; Weitzman, Ben P.
Konar, Brenda & S. Edwards, Matthew & Bland, Aaron & Metzger, Jacob & Ravelo, Alexandra & Traiger, Sarah & Weitzman, Benjamin. (2017). A swath across the great divide: Kelp forests across the Samalga Pass biogeographic break. Continental Shelf Research. 143. . 10.1016/j.csr.2017.06.007.

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Year Published: 2017

Regionalizing indicators for marine ecosystems: Bering Sea–Aleutian Island seabirds, climate, and competitors

Seabirds are thought to be reliable, real-time indicators of forage fish availability and the climatic and biotic factors affecting pelagic food webs in marine ecosystems. In this study, we tested the hypothesis that temporal trends and interannual variability in seabird indicators reflect simultaneously occurring bottom-up (climatic) and...

Sydeman, William J.; Thompson, Sarah Ann; Piatt, John F.; García-Reyes, Marisol; Zador, Stephani; Williams, Jeffrey C.; Romano, Marc; Renner, Heather
William J. Sydeman, Sarah Ann Thompson, John F. Piatt, Marisol García-Reyes, Stephani Zador, Jeff C. Williams, Marc Romano, Heather M. Renner, Regionalizing indicators for marine ecosystems: Bering Sea–Aleutian Island seabirds, climate, and competitors, Ecological Indicators, Volume 78, July 2017, Pages 458-469.

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Year Published: 2017

Intraspecific evolutionary relationships among peregrine falcons in western North American high latitudes

Subspecies relationships within the peregrine falcon (Falco peregrinus) have been long debated because of the polytypic nature of melanin-based plumage characteristics used in subspecies designations and potential differentiation of local subpopulations due to philopatry. In North America, understanding the evolutionary relationships among...

Talbot, Sandra L.; Sage, George K.; Sonsthagen, Sarah A.; Gravley, Megan C.; Swem, Ted; Williams, Jeffrey C.; Longmire, Jonathan L.; Ambrose, Skip; Flamme, Melanie J.; Lewis, Stephen B.; Phillips, Laura M.; Anderson, Clifford; White, Clayton M
Talbot, S.L, Sage, G.K., Sonsthagen, S.A., Gravley, M.C., Swem, T., Williams, J.C., Longmire, J.L., Ambrose, S., Flamme, M.J., Lewis, S.B., Phillips, L., Anderson, C., and White, C.M., 2017, Intraspecific evolutionary relationships among peregrine falcons in western North American high latitudes: PLoS One, vol.12, no. 11, p. e0188185. doi:10.1371/journal.pone.0188185

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Year Published: 2017

Development of microsatellite loci exhibiting reverse ascertainment bias and a sexing marker for use in Emperor Geese (Chen canagica)

The Alaskan population of Emperor Geese (Chen canagica) nests on the Yukon–Kuskokwim Delta in western Alaska. Numbers of Emperor Geese in Alaska declined from the 1960s to the mid-1980s and since then, their numbers have slowly increased. Low statistical power of microsatellite loci developed in other waterfowl species and used in previous studies...

Gravley, Megan C.; Sage, George K.; Schmutz, Joel A.; Talbot, Sandra L.
Gravley, M.C., Sage, G.K., Schmutz, J.A., and Talbot, S.L., 2017, Development of microsatellite loci exhibiting reverse ascertainment bias and a sexing marker for use in Emperor Geese (Chen canagica): Avian Biology Research, vol. 10, no. 4, p. 201-210. doi:10.3184/175815617X14969254461396

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Year Published: 2017

Using multiple data types and integrated population models to improve our knowledge of apex predator population dynamics

Current management of large carnivores is informed using a variety of parameters, methods, and metrics; however, these data are typically considered independently. Sharing information among data types based on the underlying ecological, and recognizing observation biases, can improve estimation of individual and global parameters. We present a...

Bled, Florent; Belant, Jerrold L.; Van Daele, Lawrence J.; Svoboda, Nathan; Gustine, David D.; Hilderbrand, Grant V.; Barnes, Victor G.
Bled F, Belant JL, Van Daele LJ, et al. Using multiple data types and integrated population models to improve our knowledge of apex predator population dynamics. Ecol Evol. 2017;7:9531–9543. https://doi.org/10.1002/ece3.3469

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Year Published: 2017

Transgressive-regressive cycles in the metalliferous, oil-shale-bearing Heath Formation (Upper Mississippian), central Montana

The Upper Mississippian Heath Formation, which accumulated in the Big Snowy Trough of central Montana, has been known for three decades to contain mudrocks highly enriched in Zn, V, Mo, Ni and other metals, and source rocks for oil. The unit has more recently been recognized as a prospective tight oil play. Here we present petrographic,...

Dumoulin, Julie A.; Johnson, Craig A.; Kelley, Karen D.; Jarboe, Palma J.; Hackley, Paul C.; Scott, Clint; Slack, John F.

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: 972
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.

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

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.

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.

Scientist inspecting permafrost
June 1, 2016

Inspecting Permafrost

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

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.