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Alaska Science Center

The mission of the Alaska Science Center is to provide objective and timely data, information, and research findings about the earth and its flora and fauna to Federal, State, and local resource managers and the public to support sound decisions regarding natural resources, natural hazards, and ecosystems in Alaska and circumpolar regions. We have offices in Anchorage, Juneau, and Fairbanks. 

News

Sixty-seven years and still digging! A brief history of the USGS Benchmark Glacier Project

Sixty-seven years and still digging! A brief history of the USGS Benchmark Glacier Project

Alaska Science Center Newsletter – 2024 Yearly Review

Alaska Science Center Newsletter – 2024 Yearly Review

USGS invests $3.6 million in Bipartisan Infrastructure Law funding to map critical minerals across Alaska

USGS invests $3.6 million in Bipartisan Infrastructure Law funding to map critical minerals across Alaska

Publications

Delineating ecologically-distinct groups for annual cycle management of a declining shorebird

1. Patterns of migratory connectivity are increasingly used to understand and manage threats throughout the annual cycle of migratory species. Strong migratory connectivity refers to when individuals from different populations remain spatially separated across the annual cycle, which may expose populations to unique sets of threats and conditions that cause differential population trends...
Authors
Elly C. Knight, Jay Carlisle, Andy J. Boyce, David Bradley, Paula Cimprich, Stephanie Coates, Stephen J. Dinsmore, Cory J. Gregory, Joel G. Jorgensen, Jeffrey F. Kelly, David Newstead, Alina Olalla, Larkin A. Powell, Amy L. Scarpignato, T. Lee Tibbitts, Nils Warnock, Walter Wehtje, Peter P. Marra, Autumn-Lynn Harrison

Measuring polar bear health using allostatic load

The southern Beaufort Sea polar bear sub-population (Ursus maritimus) has been adversely affected by climate change and loss of sea ice habitat. Even though the sub-population is likely decreasing, it remains difficult to link individual polar bear health and physiological change to sub-population effects. We developed an index of allostatic load, which represents potential physiological...
Authors
Sarah Teman, Todd C. Atwood, Sarah J. Converse, Tricia Fry, Kristin L. Laidre

Estimating spatially explicit survival and mortality risk from telemetry data with thinned point process models

Mortality risk for animals often varies spatially and can be linked to how animals use landscapes. While numerous studies collect telemetry data on animals, the focus is typically on the period when animals are alive, even though there is important information that could be gleaned about mortality risk. We introduce a thinned spatial point process (SPP) modelling framework that couples...
Authors
Joseph Michael Eisaguirre, Medeleine G. Lohman, Graham G. Frye, Heather E. Johnson, Thomas V. Riecke, Perry J. Williams

Science

Tidewater Glacier Influence on Marine Ecosystems

Where glaciers meet the sea in the Gulf of Alaska (GOA), they create unique and productive marine habitats. Ringed by the continent’s tallest coastal mountains, 20% of the GOA coastal watershed is covered by glacial ice and the annual freshwater discharge into the GOA from glacial melt is comparable to that of the Mississippi river.
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Tidewater Glacier Influence on Marine Ecosystems

Where glaciers meet the sea in the Gulf of Alaska (GOA), they create unique and productive marine habitats. Ringed by the continent’s tallest coastal mountains, 20% of the GOA coastal watershed is covered by glacial ice and the annual freshwater discharge into the GOA from glacial melt is comparable to that of the Mississippi river.
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Nearshore Marine Ecosystem Research

Nearshore ecosystems include many resources that are of high ecological, recreational, subsistence, and economic value. They also are subject to influences from a wide variety of natural and human-caused perturbations, which can originate in terrestrial or oceanic environments. Our research is designed to evaluate sources of variation in the nearshore and how they influence resources of high...
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Nearshore Marine Ecosystem Research

Nearshore ecosystems include many resources that are of high ecological, recreational, subsistence, and economic value. They also are subject to influences from a wide variety of natural and human-caused perturbations, which can originate in terrestrial or oceanic environments. Our research is designed to evaluate sources of variation in the nearshore and how they influence resources of high...
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Seabirds and Forage Fish Ecology

Alaska's coastal and offshore waters provide foraging habitat for an estimated 100 million birds comprising more than 90 different species; from loons and seaducks that nest inland, to petrels and puffins that breed on islands off shore. All these birds depend on the sea to provide a wide variety of food types— from clams, crabs and urchins nearshore— to krill, forage fish, and squid offshore. The...
link

Seabirds and Forage Fish Ecology

Alaska's coastal and offshore waters provide foraging habitat for an estimated 100 million birds comprising more than 90 different species; from loons and seaducks that nest inland, to petrels and puffins that breed on islands off shore. All these birds depend on the sea to provide a wide variety of food types— from clams, crabs and urchins nearshore— to krill, forage fish, and squid offshore. The...
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