Unified Interior Regions

Alaska

States L2 Landing Page Tabs

Filter Total Items: 200
Small yellow bird on a bush
Date Published: September 18, 2018
Status: Active

Festivals Celebrating Birds in Alaska

Here are a few festivals celebrating birds around the state of Alaska.

Small bird in a bush
Date Published: September 17, 2018
Status: Active

Meeting and Project Summaries for Boreal Partners in Flight

Information on topics discussed by Boreal Partners in Flight (BPIF) working groups organized by year.

A Black-capped Chickadee with a severely deformed beak where the upper beak is elongated and curved down while the lower beak is
Date Published: August 21, 2018
Status: Active

Background of Beak Deformity Research

Large numbers of Black-capped Chickadees with abnormal beaks were reported in south-central Alaska in the late 1990s.  More recently, similar beak deformities have appeared in other species throughout the state. At least 30 Alaskan bird species are affected and the geographic extent of the problem appears to be growing.  In addition to Alaskan observations, we have received increasing numbers...

John Reed (USGS scientist) holding a gull marked with a satellite transmitter at the Soldotna landfill in June 2016
Date Published: August 21, 2018
Status: Active

Antibiotic Resistant Bacteria in Migratory Birds

Migratory birds, and particularly those using habitats close to human settlements, may be infected with antibiotic resistant bacteria.  The USGS is working with public health professionals to understand the role of birds in the maintenance and dispersal of antibiotic resistant bacteria.  Additionally, the USGS is investigating how antibiotic resistant bacteria in birds may relate to public and...

A solitary tree trunk stands amongst the devastation of the 2011 fire in Great Dismal Swamp, VA.
Date Published: August 20, 2018
Status: Active

Wetlands in the Quaternary Project

Wetlands accumulate organic-rich sediment or peat stratigraphically, making them great archives of past environmental change. Wetlands also act as hydrologic buffers on the landscape and are important to global biogeochemical cycling. This project uses wetland archives from a range of environments to better understand how vegetation, hydrology, and hydroclimate has changed on decadal to multi-...

A Black-capped Chickadee with a beak that has grown long and curved down
Date Published: August 20, 2018
Status: Active

Species Affected by Beak Deformities

At least 30 Alaskan bird species are affected and the geographic extent of the problem appears to be growing.  In addition to Alaskan observations, we have received increasing numbers of reports from other parts of North America and Europe.

Small bird with a crossed beak on a branch
Date Published: August 19, 2018
Status: Active

Physical Description of Beak Deformities

The most commonly observed physical abnormalities among Alaskan birds are overgrown or crossed beaks.  The severity of the deformities varies, ranging from a nearly indiscernible “overbite” to beaks that are more than double their normal length.  The upper and lower parts of the beak are also frequently crossed or gapped.

A small bird in a tree with a really curved beak
Date Published: August 18, 2018
Status: Active

Prevalence, Distribution and Timing of Beak Deformities in Birds

The rates of beak deformities documented in Black-capped Chickadees and Northwestern Crows in Alaska are the highest ever recorded within a wild bird population anywhere.

Small bird with long beak
Date Published: August 17, 2018
Status: Active

Beak Deformity's Effects on Birds

Birds with beak deformities often have difficulty foraging and preening, and may not be able to keep themselves warm and well-fed during cold winter months.  Although some birds with beak deformities breed successfully, they typically encounter more challenges than normal birds.

A little gray bird
Date Published: August 16, 2018
Status: Active

Possible Causes for Beak Deformities

Beak deformities can be caused by a variety of factors, including contaminants, nutritional deficiencies, disease, parasites, blunt trauma, or genetic abnormalities. We recently identified a novel picornavirus (Poecivirus) in Black-capped Chickadees with avian keratin disorder (AKD). Our results suggest that Poecivirus is the most likely factor responsible for beak deformities in Alaskan birds...

A Black-capped Chickadee with a beak that has grown long and crossed
Date Published: August 15, 2018
Status: Active

Literature Cited for Beak Deformities

Literature Cited in the Beak Deformity web pages

A Yellow-rumped (Myrtle) Warbler with a deformed beak sitting in a tree in Cape May, New Jersey
Date Published: August 14, 2018
Status: Active

Links Related to Beak Deformity Research

Links, videos and news articles related to beak deformity research

Filter Total Items: 138
placeholder for data files
March 26, 2019

This dataset contains two tables of sampling information and size and mass measurements of the Baltic Tellin (Macoma balthica) from sites in Cook Inlet, Alaska, USA, and the Baie de Somme estuary, France.

Map of land and ocean showing lines where data were collected in the ocean.
March 25, 2019

High-resolution acoustic backscatter data, bathymetry data, single channel minisparker seismic-reflection data were collected by the U.S. Geological Survey (USGS) and the Alaska Department of Fish and Game in May of 2014 southwest of Chenega Island and southwest of Montague Island, Alaska. Data were collected aboard the Alaska Department of Fish and Game vessel, R/V Solstice.

placeholder for data files
March 21, 2019

This data set documents the age, length, dry mass energy density, and dry mass of age-0 and age-1 Pacific sand lance captured in Prince William Sound Alaska each July from 2012 to 2016. The analysis of this data was published in von Biela et al. 2019 (doi:10.3354/meps12891).

placeholder for data files
March 11, 2019

These are raw field data from a stratified random survey to inventory the birds breeding in lowlands (elevation below 100m) of the Alaska Peninsula, during summers 2004-2007. Data were collected at 792 survey points on 52 5-km x 5-km plots. The data are in: 1) four PDF files of digitally scanned original field data forms describing each of the 52 plots, and 2) a ZIP package containing 2824 JPEG p

placeholder for data files
March 1, 2019

These are raw field data from a stratified random survey to inventory the birds breeding in lowlands (elevation below 100m) of the Alaska Peninsula, during summers 2004-2007. Data were collected at 792 survey points on 52 5-km x 5-km plots. The data are in: 1) four PDF files of digitally scanned original field data forms describing each of the 52 plots, and 2) a ZIP package containi

placeholder for data files
February 28, 2019

This dataset contains migration timing and land-based location information from nine Marbled Godwits (Limosa fedoa beringiae) equipped with solar-powered satellite transmitters on breeding grounds near Ugashik, Alaska, in June of 2008. Transmitters were programmed with a duty cycle of 10 hr on and 48 hr off, yielding 10,858 locations (47-3,490 locations per bird, depending on th

A photo from the sky of a coastline showing areas of sediment and water as well as land features like roads.
February 26, 2019

Aerial photographs were collected from a small, fixed-wing aircraft over the coast of Barter Island, Alaska on three separate dates: July 01 2014, September 07 2014, and July 05 2015. Precise aircraft position information and structure-from-motion photogrammetric methods were combined to derive high-resolution orthophotomosaics and elevation point clouds.

Satellite image of the state of Alaska with two flags showing where data has been collected by the USGS.
February 20, 2019

Here we present methane data from along the coast of Barter Island, Alaska that was produced with an unmanned aerial system and an off-the-shelf, cost-effective methane sensor. The data was recorded in September of 2017 as part of a larger Arctic coastal erosion investigation study by the U.S. Geological Survey. The datasets contain latitude, longitude and CH4 (ppm).

USGS
January 1, 2019

High-resolution multibeam data were collected by the U.S. Geological Survey (USGS) and the Alaska Department of Fish and Game in May of 2014 southwest of Montague Island, Alaska. Data were collected aboard the Alaska Department of Fish and Game vessel, R/V Solstice, during USGS field activity 2014-622-FA, using a pole mounted 100-kHz Reson 7111 multibeam echosounder.

Underwater photo of the seafloor showing live clams and clam shells and a cable clamp for scale.
January 1, 2019

Geochemical analyses of authigenic carbonates, bivalves, and pore fluids were performed on samples collected from seep fields along the Queen Charlotte Fault, a right lateral transform boundary that separates the Pacific and North American tectonic plates. Samples were collected using grab samplers and piston cores, and were collected during three different research cruises in 2011, 201

USGS
January 1, 2019

High-resolution acoustic backscatter data were collected by the U.S. Geological Survey (USGS) and the Alaska Department of Fish and Game in May of 2014 southwest of Chenega Island, Alaska. Data were collected aboard the Alaska Department of Fish and Game vessel, R/V Solstice, during USGS field activity 2014-622-FA, using a pole mounted 100-kHz Reson 7111 multibeam echosounder.

Filter Total Items: 113
Publication Thumbnail
Year Published: 2010

Abdominally implanted transmitters with percutaneous antennas affect the dive performance of Common Eiders

Implanted transmitters have become an important tool for studying the ecology of sea ducks, but their effects remain largely undocumented. To address this, we assessed how abdominally implanted transmitters with percutaneous antennas affect the vertical dive speeds, stroke frequencies, bottom time, and dive duration of captive Common Eiders (...

Powell, Abby N.; Latty, Christopher J.; Hollmén, Tuula E.; Petersen, Margaret R.; Andrews, Russel D.

Publication Thumbnail
Year Published: 2010

Logs and Geologic Data from a Paleoseismic Investigation of the Susitna Glacier fault, Central Alaska Range, Alaska

This report contains field and laboratory data from a paleoseismic study of the Susitna Glacier fault, Alaska. The initial M 7.2 subevent of the November 3, 2002, M 7.9 Denali fault earthquake sequence produced a 48-km-long set of complex fault scarps, folds, and aligned landslides on the previously unknown, north-dipping Susitna Glacier thrust...

Personius, Stephen F.; Crone, Anthony J.; Burns, Patricia A.C.; Beget, James E.; Seitz, Gordon G.; Bemis, Sean P.
Logs and Geologic Data from a Paleoseismic Investigation of the Susitna Glacier fault, Central Alaska Range, Alaska; 2010; SIM; 3114; Personius, Stephen F.; Crone, Anthony J.; Burns, Patricia A.; Beget, James E.; Seitz, Gordon G.; Bemis, Sean P.

Publication Thumbnail
Year Published: 2010

Headwater streams and forest management: does ecoregional context influence logging effects on benthic communities?

Effects of forest management on stream communities have been widely documented, but the role that climate plays in the disturbance outcomes is not understood. In order to determine whether the effect of disturbance from forest management on headwater stream communities varies by climate, we evaluated benthic macroinvertebrate communities in 24...

Medhurst, R. Bruce; Wipfli, Mark S.; Binckley, Chris; Polivka, Karl; Hessburg, Paul F.; Salter, R. Brion
Headwater streams and forest management: Does ecoregional context influence logging effects on benthic communities?; 2010; Article; Journal; Hydrobiologia; Medhurst, R. B.; Wipfli, M. S.; Binckley, C.; Polivka, K.; Hessburg, P. F.; Salter, R. B.

Publication Thumbnail
Year Published: 2010

Linking ecosystems, food webs, and fish production: subsidies in salmonid watersheds

Physical characteristics of riverine habitats, such as large wood abundance, pool geometry and abundance, riparian vegetation cover, and surface flow conditions, have traditionally been thought to constrain fish production in these ecosystems. Conversely, the role of food resources (quantity and quality) in controlling fish production has received...

Wipfli, Mark S.; Baxter, Colden V.
Linking ecosystems, food webs, and fish production: Subsidies in salmonid watersheds; 2010; Article; Journal; Fisheries; Wipfli, M. S.; Baxter, C. V.

Publication Thumbnail
Year Published: 2009

Nitrogen attenuation of terrestrial carbon cycle response to global environmental factors

Nitrogen cycle dynamics have the capacity to attenuate the magnitude of global terrestrial carbon sinks and sources driven by CO2 fertilization and changes in climate. In this study, two versions of the terrestrial carbon and nitrogen cycle components of the Integrated Science Assessment Model (ISAM) are used to evaluate how variation in nitrogen...

Jain, A.A.; Yang, Xiaojuan; Kheshgi, H.; McGuire, A. David; Post, W.; Kicklighter, David W.

Publication Thumbnail
Year Published: 2009

Projected changes in atmospheric heating due to changes in fire disturbance and the snow season in the western Arctic, 2003–2100

In high latitudes, changes in climate impact fire regimes and snow cover duration, altering the surface albedo and the heating of the regional atmosphere. In the western Arctic, under four scenarios of future climate change and future fire regimes (2003–2100), we examined changes in surface albedo and the related changes in regional...

Euskirchen, E.S.; McGuire, A. David; Rupp, T.S.; Chapin, F. S.; Walsh, J.E.

Publication Thumbnail
Year Published: 2009

Maps Showing Seismic Landslide Hazards in Anchorage, Alaska

The devastating landslides that accompanied the great 1964 Alaska earthquake showed that seismically triggered landslides are one of the greatest geologic hazards in Anchorage. Maps quantifying seismic landslide hazards are therefore important for planning, zoning, and emergency-response preparation. The accompanying maps portray seismic landslide...

Jibson, Randall W.; Michael, John A.
Maps Showing Seismic Landslide Hazards in Anchorage, Alaska; 2009; SIM; 3077; Jibson, Randall W.; Michael, John A.

Publication Thumbnail
Year Published: 2009

Does winter region affect spring arrival time and body mass of king eiders in northern Alaska?

Events during the non-breeding season may affect the body condition of migratory birds and influence performance during the following breeding season. Migratory birds nesting in the Arctic often rely on endogenous nutrients for reproductive efforts, and are thus potentially subject to such carry-over effects. We tested whether king eider (...

Powell, Abby N.; Oppel, Steffen

Publication Thumbnail
Year Published: 2008

Challenges in making a seismic hazard map for Alaska and the Aleutians

We present a summary of the data and analyses leading to the revision of the time-independent probabilistic seismic hazard maps of Alaska and the Aleutians. These maps represent a revision of existing maps based on newly obtained data, and reflect best current judgments about methodology and approach. They have been prepared following the...

Freymueller, J.T.; Wesson, R.L.; Boyd, O.S.; Mueller, C.S.; Frankel, A.D.
Challenges in making a seismic hazard map for Alaska and the Aleutians; 2008; Article; Journal; Geophysical Monograph Series: Active Tectonics and Seismic Potential of Alaska; Wesson, R. L.; Boyd, O. S.; Mueller, C. S.; Frankel, A. D.

Publication Thumbnail
Year Published: 2007

Landscape geochemistry near mineralized areas of eastern Alaska: Chapter H in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project

The Pogo lode gold deposit was discovered in eastern Alaska in the early 1990s and provided the opportunity to study elemental distribution and mobility in the natural environment prior to mine development. Studying mineralized systems prior to mining allows us to compare the natural biogeochemical signature in mineralized versus...

Wang, Bronwen; Gough, Larry P.; Wanty, Richard B.; Crock, James G.; Lee, Gregory K.; Day, Warren C.; Vohden, Jim
Landscape geochemistry near mineralized areas of eastern Alaska: Chapter H in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project; 2007; SIR; 2007-5289-H; Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289); Wang, Bronwen; Gough, Larry P.; Wanty, Richard B.; Crock, James G.; Lee, Gregory K.; Day, Warren C.; Vohden, Jim

Publication Thumbnail
Year Published: 2007

Geology and origin of epigenetic lode gold deposits, Tintina Gold Province, Alaska and Yukon: Chapter A in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project

More than 50 million ounces of lode gold resources have been defined in the previous 15 years throughout accreted terranes of interior Alaska and in adjacent continental margin rocks of Yukon. The major deposits in this so-called Tintina Gold Province formed around 105 to 90 million years ago in east-central Alaska and Yukon, and around 70...

Gough, Larry P.; Day, Warren C.; Goldfarb, Richard J.; Marsh, Erin E.; Hart, Craig J.R.; Mair, John L.; Miller, Marti L.; Johnson, Craig
Geology and origin of epigenetic lode gold deposits, Tintina Gold Province, Alaska and Yukon: Chapter A in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project; 2007; SIR; 2007-5289-A; Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289); Goldfarb, Richard J.; Marsh, Erin E.; Hart, Craig J.R.; Mair, John L.; Miller, Marti L.; Johnson, Craig

Publication Thumbnail
Year Published: 2007

Aufeis accumulations in stream bottoms in arctic and subarctic environments as a possible indicator of geologic structure: Chapter F in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project

Thick accumulations of ice, called “aufeis,” form during winter along stream and river valleys in arctic and subarctic regions. In high-gradient alpine streams, aufeis forms mostly as a result of ground-water discharge into the stream channel. The ice occludes this discharge, perturbing the steady-state condition, and causing an incremental...

Gough, Larry P.; Day, Warren C.; Wanty, Richard B.; Wang, Bronwen; Vohden, Jim; Day, Warren C.; Gough, Larry P.
Aufeis accumulations in stream bottoms in arctic and subarctic environments as a possible indicator of geologic structure: Chapter F in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project; 2007; SIR; 2007-5289-F; Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project (Scientific Investigations Report 2007-5289); Wanty, Richard B.; Wang, Bronwen; Vohden, Jim; Day, Warren C.; Gough, Larry P.

Filter Total Items: 1,047
August 18, 2019

Time-lapse video of bluff erosion on Barter Island, Alaska

Recorded June 1, 2019 - August 18, 2019: Video shows a series of photos taken every hour during daylight hours in the summer of 2019. The camera looks westward along the coastal bluffs of Barter Island, located on Alaska’s North Slope. A pole on the bluff, visible in the first half of the video, once supported another video camera that was aimed at the

Measuring temperature and dissolved oxygen in impounded water of beaver dam on the Wrench Creek, Noatak National Preserve
August 17, 2019

Measuring temperature and dissolved oxygen in impounded water

Measuring temperature and dissolved oxygen in impounded water of beaver dam on the Wrench Creek, Noatak National Preserve.

 

Arctic grayling (Thymallus arcticus) and Dolly varden (Salvelinus malma)  from impounded water of beaver dam on the Wrench Creek
August 17, 2019

Arctic grayling and Dolly varden from impounded water of beaver dam

Arctic grayling (Thymallus arcticus) and Dolly varden (Salvelinus malma)  from impounded water of beaver dam on the Wrench Creek, Noatak National Preserve. 

Gnawed tree from beaver activity on tributary of the Agashashok River, Noatak National Preserve
August 16, 2019

Gnawed tree from beaver activity on tributary of the Agashashok River

Gnawed tree from beaver activity on tributary of the Agashashok River, Noatak National Preserve

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument
August 15, 2019

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument

Beaver dam crossing mainstem of Rabbit Creek near the headwaters, Cape Krusenstern National Monument
August 15, 2019

Beaver dam crossing mainstem of Rabbit Creek near the headwaters

Beaver dam crossing mainstem of Rabbit Creek near the headwaters, Cape Krusenstern National Monument

Measuring the amount of water impounded by a beaver dam on Rabbit Creek, Cape Krusenstern National Monument.
August 14, 2019

Measuring the amount of water impounded by a beaver dam

 

Measuring the amount of water impounded by a beaver dam on Rabbit Creek, Cape Krusenstern National Monument. 

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument
August 14, 2019

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument

Beaver swimming near dam on Rabbit Creek, Cape Krusenstern National Monument
August 14, 2019

Beaver swimming near dam on Rabbit Creek, Cape Krusenstern

Beaver swimming near dam on Rabbit Creek, Cape Krusenstern National Monument

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument
August 14, 2019

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument

Beaver dams on Rabbit Creek, Cape Krusenstern National Monument

Short-tailed Shearwater carcasses on beach in Bristol Bay, Alaska
August 6, 2019

Short-tailed Shearwater carcasses on beach in Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019

Short-tailed Shearwater carcass on beach in Bristol Bay, Alaska
August 6, 2019

Close up of Short-tailed Shearwater carcass in Bristol Bay, Alaska

Short-tailed Shearwater die-off in the Bering Sea. Emaciated Short-tailed Shearwater carcasses littered the beaches of Bristol Bay during the summer of 2019

Filter Total Items: 257
Painting - Denali in Midsummer
June 21, 2016

The U.S. Geological Survey has produced a new compilation of landscape-scale sediment and soil geochemical data for Alaska. This was last completed nearly 40 years ago in 1978, but the new effort uses modern modeling and analysis techniques to map 68 elements across a newly developed and updated geochemical atlas of Alaska.

USGS study of fires and waterfowl surveys in the western boreal forest of North America. 
June 21, 2016

“These results suggest that waterfowl populations in the western boreal forest are resilient to forest fires and that current policies of limited fire suppression have not been detrimental to waterfowl populations." – Tyler Lewis, U.S. Geological Survey.

Permafrost area, Beaver Creek, Alaska.
June 20, 2016

The thawing of the planet’s permafrost is replumbing arctic environments, creating several hydrologic consequences and possibly some opportunities according to a new study published in Vadose Zone.

Scientist laying cable in a field
June 1, 2016

Fate of Alaska's large carbon reserves could affect greenhouse gas concentration.

satellite image of brown resuspended volcanic ash cloud over Kodiak Island, Alaska
April 25, 2016

Two public events are scheduled next week in the City of Kodiak, Alaska about monitoring old volcanic ash resuspended by high winds. Scientists invite the local community to learn more about the potential impacts of resuspended volcanic ash and how to assist in volcano hazards research by collecting samples of the redistributed volcanic ash and dust.

USGS
April 20, 2016

You really are what you eat. That’s the taking-off point for a new polar bear study, conducted by U.S. Geological Survey researchers with an assist from the Oregon Zoo — and published this week in the journal Physiological and Biochemical Zoology. 

collage of scientists conducting science related to each mission are
April 5, 2016

ANCHORAGE, Alaska — The U.S. Geological Survey released additional evidence that western Alaska remains a hot spot for avian influenza to enter North America. 

Image: Michelle Coombs
April 4, 2016

The U.S. Geological Survey is pleased to announce the selection of Dr. Michelle Coombs as the next Scientist-in-Charge of the Alaska Volcano Observatory, a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.

Suzette Kimball, Director of the U.S. Geological Survey presenting award to Nicholas Mastrodicasa
March 15, 2016

To commemorate the nation's first chief geographer, the USGS established the Henry Gannett Award. This year's recipient is Nicholas Mastrodicasa, Alaska Department of Transportation & Public Facilities, for his leadership in the Alaska Statewide Digital Mapping Initiative and the development of an elevation requirements study for Alaska.

Aerial view of the Chenega village site at the head of Chenega Cove.
February 1, 2016

Minutes after the 1964 magnitude-9.2 Great Alaska Earthquake began shaking, a series of tsunami waves swept through the village of Chenega in Prince William Sound, destroying all but two of the buildings and killing 23 of the 75 inhabitants.