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: 2,396
Publication Thumbnail
Year Published: 2010

Arctic sea ice decline: Projected changes in timing and extent of sea ice in the Bering and Chukchi Seas

The Arctic region is warming faster than most regions of the world due in part to increasing greenhouse gases and positive feedbacks associated with the loss of snow and ice cover. One consequence has been a rapid decline in Arctic sea ice over the past 3 decades?a decline that is projected to continue by state-of-the-art models. Many stakeholders...

Douglas, David C.
Arctic sea ice decline: Projected changes in timing and extent of sea ice in the Bering and Chukchi Seas; 2010; OFR; 2010-1176; Douglas, D. C.

Publication Thumbnail
Year Published: 2010

Characteristics of fall chum salmon spawning habitat on a mainstem river in Interior Alaska

Chum salmon (Oncorhynchus keta) are the most abundant species of salmon spawning in the Yukon River drainage system, and they support important personal use, subsistence, and commercial fisheries. Chum salmon returning to the Tanana River in Interior Alaska are a significant contribution to the overall abundance of Yukon River chum salmon and an...

Burril, Sean E.; Zimmerman, Christian E.; Finn, James E.
Characteristics of fall chum salmon spawning habitat on a mainstem river in Interior Alaska; 2010; OFR; 2010-1164; Burril, Sean E.; Zimmerman, Christian E.; Finn, James E.

Publication Thumbnail
Year Published: 2010

Modeling the Effects of Mortality on Sea Otter Populations

Conservation and management of sea otters can benefit from managing the magnitude and sex composition of human related mortality, including harvesting within sustainable levels. Using age and sex-specific reproduction and survival rates from field studies, we created matrix population models representing sea otter populations with growth rates of...

Bodkin, James L.; Ballachey, Brenda E.
Modeling the Effects of Mortality on Sea Otter Populations; 2010; SIR; 2010-5096; Bodkin, James L.; Ballachey, Brenda E.

Publication Thumbnail
Year Published: 2010

U.S. Geological Survey (USGS) Western Region Kasatochi Volcano Coastal and Ocean Science

Alaska is noteworthy as a region of frequent seismic and volcanic activity. The region contains 52 historically active volcanoes, 14 of which have had at least one major eruptive event since 1990. Despite the high frequency of volcanic activity in Alaska, comprehensive studies of how ecosystems respond to volcanic eruptions are non-existent. On...

DeGange, Anthony
U.S. Geological Survey (USGS) Western Region Kasatochi Volcano Coastal and Ocean Science; 2010; FS; 2010-3028; DeGange, Anthony

Publication Thumbnail
Year Published: 2010

Abundance, Timing of Migration, and Egg-to-Smolt Survival of Juvenile Chum Salmon, Kwethluk River, Alaska, 2007 and 2008

To better understand and partition mortality among life stages of chum salmon (Oncorhynchus keta), we used inclined-plane traps to monitor the migration of juveniles in the Kwethluk River, Alaska in 2007 and 2008. The migration of juvenile chum salmon peaked in mid-May and catch rates were greatest when water levels were rising. Movement of chum...

Burril, Sean E.; Zimmerman, Christian E.; Finn, James E.; Gillikin, Daniel
Abundance, Timing of Migration, and Egg-to-Smolt Survival of Juvenile Chum Salmon, Kwethluk River, Alaska, 2007 and 2008 ; 2010; OFR; 2010-1028; Burril, Sean E.; Zimmerman, Christian E.; Finn, James E.; U.S. Geological Survey; Gillikin, Daniel, U.S. Fish and Wildlife Service

Publication Thumbnail
Year Published: 2010

Glacier microseismicity

We present a framework for interpreting small glacier seismic events based on data collected near the center of Bering Glacier, Alaska, in spring 2007. We find extremely high microseismicity rates (as many as tens of events per minute) occurring largely within a few kilometers of the receivers. A high-frequency class of seismicity is distinguished...

West, Michael E.; Larsen, Christopher F.; Truffer, Martin; O'Neel, Shad; LeBlanc, Laura
Glacier microseismicity; 2010; Article; Journal; Geology; West, Michael E.; Larsen, Christopher F.; Truffer, Martin; O'Neel, Shad; LeBlanc, Laura

Publication Thumbnail
Year Published: 2010

Vegetation of eastern Unalaska Island, Aleutian Islands, Alaska

Plant communities of Unalaska Island in the eastern Aleutian Islands of western Alaska, and their relationship to environmental variables, were studied using a combined Braun-Blanquet and multivariate approach. Seventy relevés represented the range of structural and compositional variation in the matrix of vegetation and landform zonation. Eleven...

Talbot, Stephen S.; Schofield, Wilfred B.; Talbot, Sandra L.; Daniëls, Fred J.A.
Vegetation of eastern Unalaska Island, Aleutian Islands, Alaska; 2010; Article; Journal; Botany; Talbot, Stephen S.; Schofield, Wilfred B.; Talbot, Sandra L.; Daniëls, Fred J. A.

Publication Thumbnail
Year Published: 2010

Beak deformities in Northwestern Crows: Evidence of a multispecies epizootic

Beak abnormalities are rare among adult birds and, typically, are not widespread in a given population, within a region, or across multiple species. A high concentration of beak deformities was recently documented in Black-capped Chickadees (Poecile atricapillus) and other resident avian species in Alaska. We describe a parallel condition in...

Van Hemert, Caroline R.; Handel, Colleen M.
Beak deformities in Northwestern Crows: evidence of a multispecies epizootic; 2010; Article; Journal; The Auk; Van Hemert, Caroline; Handel, Colleen M.

Publication Thumbnail
Year Published: 2010

Iceberg calving during transition from grounded to floating ice: Columbia Glacier, Alaska

The terminus of Columbia Glacier, Alaska, unexpectedly became ungrounded in 2007 during its prolonged retreat. Visual observations showed that calving changed from a steady release of low-volume bergs, to episodic flow-perpendicular rifting, propagation, and release of very large icebergs - a style reminiscent of calving from ice shelves. Here, we...

Walter, Fabian; O'Neel, Shad; McNamara, Daniel; Pfeffer, W.T.; Bassis, Jeremy N.; Fricker, Helen Amanda
Iceberg calving during transition from grounded to floating ice: Columbia Glacier, Alaska; 2010; Article; Journal; Geophysical Research Letters; Walter, Fabian; O'Neel, Shad; McNamara, Daniel; Pfeffer, W.T.; Bassis, Jeremy N.; Fricker, Helen Amanda

Publication Thumbnail
Year Published: 2010

Population structure and plumage polymorphism: the intraspecific evolutionary relationships of a polymorphic raptor, Buteo jamaicensis harlani

Background Phenotypic and molecular genetic data often provide conflicting patterns of intraspecific relationships confounding phylogenetic inference, particularly among birds where a variety of environmental factors may influence plumage characters. Among diurnal raptors, the taxonomic relationship of Buteo jamaicensis harlani to other...

Hull, Joshua M.; Mindell, David P.; Talbot, Sandra L.; Kay, Emily H.; Hoekstra, Hopi E.; Ernest, Holly B.

Publication Thumbnail
Year Published: 2010

Iceberg calving as a primary source of regional‐scale glacier‐generated seismicity in the St. Elias Mountains, Alaska

Since the installation of the Alaska Regional Seismic Network in the 1970s, data analysts have noted nontectonic seismic events thought to be related to glacier dynamics. While loose associations with the glaciers of the St. Elias Mountains have been made, no detailed study of the source locations has been undertaken. We performed a two-step...

O'Neel, Shad; Larsen, Christopher F.; Rupert, Natalia; Hansen, Roger
Iceberg calving as a primary source of regional‐scale glacier‐generated seismicity in the St. Elias Mountains, Alaska; 2010; Article; Journal; Journal of Geophysical Research: Earth Surface; O'Neel, Shad R.; Larsen, Christopher F.; Rupert, Natalia; Hansen, Roger

Publication Thumbnail
Year Published: 2010

A likelihood framework for joint estimation of salmon abundance and migratory timing using telemetric mark-recapture

Many fisheries for Pacific salmon Oncorhynchus spp. are actively managed to meet escapement goal objectives. In fisheries where the demand for surplus production is high, an extensive assessment program is needed to achieve the opposing objectives of allowing adequate escapement and fully exploiting the available surplus. Knowledge of...

Bromaghin, Jeffrey F.; Gates, Kenneth S.; Palmer, Douglas E.
Bromaghin, J. F., K. S. Gates, and D. E. Palmer. 2010. A likelihood framework for joint estimation of salmon abundance and migratory timing using telemetric mark-recapture. North American Journal of Fisheries Management 30(6):1385-1394. doi:10.1577/M10-065.1

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.