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: 2012

Polymorphic microsatellite loci identified through development and cross-species amplification within shorebirds

We developed microsatellite loci for demographic assessments of shorebirds, a group with limited markers. First, we isolated five dinucleotide repeat microsatellite loci from the Black Oystercatcher (Haematopodidae: Haematopus bachmani), and three from the Bristle-thighed Curlew (Scolopacidae: Numenius tahitiensis); both species are of...

Williams, I.; Guzzetti, Brian M.; Gust, Judy R.; Sage, G. Kevin; Gill, Robert E.; Tibbitts, T. Lee; Sonsthagen, Sarah A.; Talbot, Sandra L.
Polymorphic microsatellite loci identified through development and cross-species amplification within shorebirds; 2012; Article; Journal; Journal of Ornithology; Williams, I.; Guzzetti, B. M.; Gust, J. R.; Sage, G. K.; Gill, R. E.; Tibbitts, T. L.; Sonsthagen, S. A.; Talbot, S. L.

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Year Published: 2012

Scaling the Teflon Peaks: Rock type and the generation of extreme relief in the glaciated western Alaska Range

Parts of the Alaska Range (Alaska, USA) stand in prominent exception to the “glacial buzzsaw hypothesis,” which postulates that terrain raised above the ELA is rapidly denuded by glaciers. In this paper, we discuss the role of a strong contrast in rock type in the development of this exceptional terrain. Much of the range is developed on...

Ward, Dylan J.; Anderson, Robert S.; Haeussler, Peter J.

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Year Published: 2012

Shifting balance of thermokarst lake ice regimes across the Arctic Coastal Plain of northern Alaska

The balance of thermokarst lakes with bedfast- and floating-ice regimes across Arctic lowlands regulates heat storage, permafrost thaw, winter-water supply, and over-wintering aquatic habitat. Using a time-series of late-winter synthetic aperture radar (SAR) imagery to distinguish lake ice regimes in two regions of the Arctic Coastal Plain of...

Arp, Christopher D.; Jones, Benjamin M.; Lu, Zong; Whitman, Matthew S.
Shifting balance of thermokarst lake ice regimes across the Arctic Coastal Plain of northern Alaska; 2012; Article; Journal; Geophysical Research Letters; Arp, Christopher D.; Jones, Benjamin M.; Lu, Zong; Whitman, Matthew S.

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Year Published: 2012

Reconstruction of past methane availability in an Arctic Alaska wetland indicates climate influenced methane release during the past ~12,000 years

Atmospheric contributions of methane from Arctic wetlands during the Holocene are dynamic and linked to climate oscillations. However, long-term records linking climate variability to methane availability in Arctic wetlands are lacking. We present a multi-proxy ~12,000 year paleoecological reconstruction of intermittent methane availability from a...

Wooller, Matthew J.; Pohlman, John W.; Gaglioti, Benjamin V.; Langdon, Peter; Jones, Miriam; Anthony, Katey M. Walter; Becker, Kevin W.; Hinrichs, Kai-Uwe; Elvert, Marcus
Reconstruction of past methane availability in an Arctic Alaska wetland indicates climate influenced methane release during the past ~12,000 years; 2012; Article; Journal; Journal of Paleolimnology; Wooller, Matthew J.; Pohlman, John W.; Gaglioti, Benjamin V.; Langdon, Peter; Jones, Miriam; Anthony, Katey M. Walter; Becker, Kevin W.; Hinrichs, Kai-Uwe; Elvert, Marcus

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Year Published: 2012

Evidence for competition at sea between Norton Sound chum salmon and Asian hatchery chum salmon

Increasing production of hatchery salmon over the past four decades has led to concerns about possible density-dependent effects on wild Pacific salmon populations in the North Pacific Ocean. The concern arises because salmon from distant regions overlap in the ocean, and wild salmon populations having low productivity may compete for food with...

Ruggerone, Gregory T.; Agler, B.A.; Nielsen, Jennifer L.
Ruggerone, G. T., B.A. Angler, and J. L. Nielsen,2012. Evidence for competition at sea between Norton Sound chum salmon and Asian hatchery chum salmon. Environmental Biology of Fishes 94(1): 149-163. 10.1007/s10641-011-9856-5

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Year Published: 2012

Studying ocean acidification in the Arctic Ocean

The U.S. Geological Survey (USGS) partnership with the U.S. Coast Guard Ice Breaker Healey and its United Nations Convention Law of the Sea (UNCLOS) cruises has produced new synoptic data from samples collected in the Arctic Ocean and insights into the patterns and extent of ocean acidification. This framework of foundational geochemical...

Robbins, Lisa
Studying ocean acidification in the Arctic Ocean; 2012; FS; 2012-3058; Robbins, Lisa

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Year Published: 2012

Estimating survival rates with time series of standing age‐structure data

It has long been recognized that age‐structure data contain useful information for assessing the status and dynamics of wildlife populations. For example, age‐specific survival rates can be estimated with just a single sample from the age distribution of a stable, stationary population. For a population that is not stable, age‐specific survival...

Udevitz, Mark S.; Gogan, Peter J.
Udevitz, M. S. and P. J. P. Gogan. 2012. Estimating survival rates with time series of standing age-structure data. Ecology 93(4):726-732. doi:10.1890/11-1766.1

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Year Published: 2012

Identification of metapopulation dynamics among Northern Goshawks of the Alexander Archipelago, Alaska, and Coastal British Columbia

Northern Goshawks occupying the Alexander Archipelago, Alaska, and coastal British Columbia nest primarily in old-growth and mature forest, which results in spatial heterogeneity in the distribution of individuals across the landscape. We used microsatellite and mitochondrial data to infer genetic structure, gene flow, and fluctuations in...

Sonsthagen, Sarah A.; McClaren, Erica L.; Doyle, Frank I.; Titus, K.; Sage, George K.; Wilson, Robert E.; Gust, Judy R.; Talbot, Sandra L.
Sonsthagen, S. A., E. L. McClaren, F. I. Doyle, K. Titus, G. K. Sage, R. E. Wilson, J. R. Gust, and S. L. Talbot. 2012. Identification of metapopulation dynamics in Northern Goshawk of the Alexander Archipelago and coastal British Columbia. Conservation Genetics 13(4):1045-1057. doi:10.1007/s10592-012-0352-z

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Year Published: 2012

Surface Mass Balance of the Columbia Glacier, Alaska, 1978 and 2010 Balance Years

Although Columbia Glacier is one of the largest sources of glacier mass loss in Alaska, surface mass balance measurements are sparse, with only a single data set available from 1978. The dearth of surface mass-balance data prohibits partitioning of the total mass losses between dynamics and surface forcing; however, the accurate inclusion of...

O'Neel, Shad
Surface Mass Balance of the Columbia Glacier, Alaska, 1978 and 2010 Balance Years; 2012; DS; 676; O'Neel, Shad

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Year Published: 2012

Oceanographic gradients and seabird prey community dynamics in glacial fjords

Glacial fjord habitats are undergoing rapid change as a result of contemporary global warming, yet little is known about how glaciers influence marine ecosystems. These ecosystems provide important feeding, breeding and rearing grounds for a wide variety of marine organisms, including seabirds of management concern. To characterize ocean...

Arimitsu, Mayumi L.; Piatt, John F.; Madison, Erica N.; Conaway, Jeffrey S.; Hillgruber, N.
Arimitsu, M. L., J. F. Piatt, E. N. Madison, J. S. Conaway, and N. Hillgruber. 2012. Oceanographic gradients and seabird prey community dynamics in glacial fjords. Fisheries Oceanography 21(2-3):148-169. doi:10.1111/j.1365-2419.2012.00616.x

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Year Published: 2012

First description of autumn migration of Sooty Falcon Falco concolor from the United Arab Emirates to Madagascar using satellite telemetry

The movement and migration pattern of the 'Near Threatened' Sooty Falcon Falco concolor is poorly known. Sooty Falcons breed on the islands of the Arabian Gulf after arriving from their non-breeding areas that are mainly in Madagascar. In the first satellite tracking of the species we fitted a 9.5 g Argos solar powered transmitter on an adult...

Javed, Sàlim; Douglas, David C.; Khan, Shahid Noor; Nazeer Shah, Junid; Ali Al Hammadi, Abdullah
Javed, S., D. C. Douglas, S. Khan, J. N. Shah, and A. A. Al Hammadi. 2011. First description of autumn migration of Sooty Falcon Falco concolor from the United Arab Emirates to Madagascar using satellite telemetry. Bird Conservation International 22 (1): 106-119. doi:10.1017/S0959270911000189

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Year Published: 2012

Genetic diversity of a newly established population of golden eagles on the Channel Islands, California

Gene flow can have profound effects on the genetic diversity of a founding population depending on the number and relationship among colonizers and the duration of the colonization event. Here we used data from nuclear microsatellite and mitochondrial DNA control region loci to assess genetic diversity in golden eagles of the recently colonized...

Sonsthagen, Sarah A.; Coonan, Timothy J.; Latta, Brian C.; Sage, George K.; Talbot, Sandra L.
Genetic diversity of a newly established population of golden eagles on the Channel Islands, California; 2012; Article; Journal; Biological Conservation; Sonsthagen, Sarah A.; Coonan, Timothy J.; Latta, Brian C.; Sage, George K.; Talbot, Sandra L.

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
A small bird on a deck bird feeder
November 5, 2005

Deformed beak Black-capped Chickadee next to peanut butter on a feeder

Deformed beak Black-capped Chickadee next to peanut butter on a feeder

A large flock of Bar-tailed Godwits flying near Egegik, Alaska
September 14, 2005

Bar-tailed Godwits in flight near Egegik, Alaska

A large flock of Bar-tailed Godwits flying near Egegik, Alaska

Sockeye salmon in shallow waters of Salmon Lake
September 7, 2005

Sockeye salmon in shallow waters of Salmon Lake

Sockeye salmon in shallow waters of Salmon Lake which is at the headwaters of the Pilgrim River.

Spawning sockeye salmon in the Grand Central River, near Nome, Alaska
September 7, 2005

Spawning sockeye salmon in the Grand Central River, near Nome, Alaska

Spawning sockeye salmon in the Grand Central River, near Nome, Alaska

Sockeye salmon spawning in Grand Central River on the Seward Peninsula, Alaska
September 7, 2005

Sockeye salmon spawning in the Grand Central River, Alaska

Sockeye salmon spawning in the Grand Central River, on the Seward Peninsula near Salmon Lake, Alaska.

A weir on the Snake River to count chum and coho salmon, near Nome, Alaska
September 7, 2005

Fish weir on the Snake River, near Nome, Alaska

A weir on the Snake River, near Nome, Alaska.  This weir was used to count chum and coho salmon adults.

Northern Fulmars on the water
July 25, 2005

Northern Fulmars on the water

Northern Fulmars on the water

Fish River on the Seward Peninsula, Alaska
June 16, 2005

Fish River on the Seward Peninsula, Alaska

Scenic view of the Fish River on Seward Peninsula, Alaska.

Fish River on the Seward Peninsula, Alaska
June 16, 2005

Fish River on the Seward Peninsula, Alaska

Scenic view of the Fish River on Seward Peninsula, Alaska.

The Nome River with clear skies
June 11, 2005

The Nome River with clear skies

Scenic view of the Nome River

The Nome River with clouds
June 11, 2005

The Nome River, Alaska

Scenic view of the Nome River

The Nome River with a grassy island
June 11, 2005

The Nome River, Alaska

Scenic view of the Nome River

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.