Unified Interior Regions
Region 11: Alaska
Alaska Science Center
4210 University Drive
Anchorage, AK 99508
Phone: (907) 786-7000
Volcano Science Center
4230 University Drive
Anchorage, AK 99508
Phone: (907) 786-7497
Climate Adaptation Science Center
4230 University Drive
Anchorage, AK 99508
Phone: 907-301-7830
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USGS research activities relevant to Alaska have yielded more than 9400 historical publications. This page features some of the most recent newsworthy research findings.
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Arctic Science for Decision Maker
2019 USGS Alaska Annual Science ReportComparative mitochondrial genetics of North American and Eurasian mergansers with an emphasis on the endangered scaly-sided merganser (Mergus squamatus)
The scaly-sided merganser, Mergus squamatus, is considered one of the most threatened sea duck species in the Palearctic with limited breeding and wintering distribution in China and Russia. To provide information for future conservation efforts, we sequenced a portion of the mitochondrial (mt) DNA control region in four species of mergansers...
Solovyeva, D.V.; Pearce, John M.Consequences of long-distance swimming and travel over deep-water pack ice for a female polar bear during a year of extreme sea ice retreat
Polar bears (Ursus maritimus) prefer to live on Arctic sea ice but may swim between ice floes or between sea ice and land. Although anecdotal observations suggest that polar bears are capable of swimming long distances, no data have been available to describe in detail long distance swimming events or the physiological and reproductive...
Durner, George M.; Whiteman, J.P.; Harlow, H.J.; Amstrup, Steven C.; Regehr, E.V.; Ben-David, M.Cytochrome P4501A biomarker indication of the timeline of chronic exposure of Barrow’s goldeneyes to residual Exxon Valdez oil
We examined hepatic EROD activity, as an indicator of CYP1A induction, in Barrow’s goldeneyes captured in areas oiled during the 1989 Exxon Valdez spill and those from nearby unoiled areas. We found that average EROD activity differed between areas during 2005, although the magnitude of the difference was reduced relative to a previous...
Esler, Daniel N.; Ballachey, Brenda E.; Trust, Kimberly A.; Iverson, Samuel A.; Reed, John A.; Miles, A. Keith; Henderson, John D.; Woodin, Bruce R.; Stegeman, John J.; McAdie, Malcolm; Mulcahy, Daniel M.; Wilson, Barry W.Design of ecoregional monitoring in conservation areas of high-latitude ecosystems under contemporary climate change
Land ownership in Alaska includes a mosaic of federally managed units. Within its agency’s context, each unit has its own management strategy, authority, and resources of conservation concern, many of which are migratory animals. Though some units are geographically isolated, many are nevertheless linked by paths of abiotic and biotic flows...
Beever, Erik A.; Woodward, AndreaEgg size matching by an intraspecific brood parasite
Avian brood parasitism provides an ideal system with which to understand animal recognition and its affect on fitness. This phenomenon of laying eggs in the nests of other individuals has classically been framed from the perspective of interspecific brood parasitism and host recognition of parasitic eggs. Few examples exist of strategies adopted...
Lemons, Patrick R.; Sedinger, James S.Evidence for foraging -site fidelity and individual foraging behavior of pelagic cormorants rearing chicks in the Gulf of Alaska
The Pelagic Cormorant (Phalacrocorax pelagicus) is the most widespread cormorant in the North Pacific, but little is known about its foraging and diving behavior. However, knowledge of seabirds' foraging behavior is important to understanding their function in the marine environment. In 2006, using GPS dataloggers, we studied the foraging behavior...
Kotzerka, J.; Hatch, Scott A.; Garthe, S.Fine scale movements and habitat use of black brant during the flightless Wing Molt in Arctic Alaska
Thousands of Black Brant (Branta bernicla nigricans) migrate annually to the Teshekpuk Lake Special Area (TLSA), Alaska, to undergo the flightless wing molt on tundra lakes and wetlands. GPS transmitters were attached to Brant over two summers (2007–2008) to examine patterns of movement and habitat use of molting Brant, including variation by...
Lewis, T.L.; Flint, Paul L.; Derksen, Dirk V.; Schmutz, Joel A.Fire, grazing history, lichen abundance, and winter distribution of caribou in Alaska's taiga
In the early 1990s the Nelchina Caribou (Rangifer tarandus) Herd (NCH) began a dramatic shift to its current winter range, migrating at least an additional 100 km beyond its historic range. We evaluated the impacts of fire and grazing history on lichen abundance and subsequent use and distribution by the NCH. Historic (prior to 1990) and current (...
Collins, William B.; Dale, Bruce W.; Adams, Layne G.; McElwain, Darien E.; Joly, KyleHydrogeomorphic processes of thermokarst lakes with grounded-ice and floating-ice regimes on the Arctic coastal plain, Alaska
Thermokarst lakes cover > 20% of the landscape throughout much of the Alaskan Arctic Coastal Plain (ACP) with shallow lakes freezing solid (grounded ice) and deeper lakes maintaining perennial liquid water (floating ice). Thus, lake depth relative to maximum ice thickness (1·5–2·0 m) represents an important threshold that impacts permafrost,...
Arp, C.D.; Jones, Benjamin M.; Urban, F.E.; Grosse, G.Integument coloration signals reproductive success, heterozygosity, and antioxidant levels in chick-rearing black-legged kittiwakes
Carotenoid pigments are important for immunity and as antioxidants, and carotenoid-based colors are believed to provide honest signals of individual quality. Other colorless but more efficient antioxidants such as vitamins A and E may protect carotenoids from bleaching. Carotenoid-based colors have thus recently been suggested to reflect the...
Leclaire, S.; White, J.; Arnoux, E.; Faivre, B.; Vetter, N.; Hatch, Scott A.; Danchin, E.Intercolony variation in growth of black brant goslings on the Yukon-Kuskokwim Delta, Alaska
Recent declines in black brant (Branta bernicla nigricans) are likely the result of low recruitment. In geese, recruitment is strongly affected by habitat conditions experienced by broods because gosling growth rates are indicative of forage conditions during brood rearing and strongly influence future survival and productivity. In 2006–2008, we...
Fondell, T.F.; Flint, Paul L.; Sedinger, J.S.; Nicolai, C.A.; Schamber, J.L.Interspecies transmission and limited persistence of low pathogenic avian influenza genomes among Alaska dabbling ducks
The reassortment and geographic distribution of low pathogenic avian influenza (LPAI) virus genes are well documented, but little is known about the persistence of intact LPAI genomes among species and locations. To examine persistence of entire LPAI genome constellations in Alaska, we calculated the genetic identities among 161 full-genome LPAI...
Reeves, Andrew B.; Pearce, John M.; Ramey, Andrew M.; Meixell, Brandt W.; Runstadler, J.A.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.