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Showing 446 results for arctic ...
Gates Of The Arctic National Park & Preserve
Why Snowshoe Hares Use Mineral Licks
- Type: Article
After nearly 20 years, the snowshoe hare population in the central Brooks Range on the eastern boundary of Gates of the Arctic National Park is building toward a peak in the population. Traditional ecological knowledge of the area tells us that the coming peak should be considerably larger than the small population increase we saw in 2008-2010. Based on the report: Snowshoe hare population trends at mineral and non-mineral sites in the central Brooks Range, Alaska.
- Type: Article
This issue includes: * Economics of Wilderness * Using Ethics Arguments to Preserve Naturalness * Busing Through the Wilderness: "Near-Wilderness" Experiences in Denali ... and more!
- Type: Article
Read the abstract and get the link to an article published in Environmental Research Letters that connects vegetation shift to warming Arctic and Boreal soils under vegetation. Kropp, H., M. M. Loranty, S. M. Natali, A. L. Kholodov, A. V. Rocha, … J. A. O’Donnell … et al. 2020. Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems. Environmental Research Letters.
- Type: Article
Read the abstract and link to a paper that describes increasing temperatures and their effects on permafrost in northern parks: Swanson, D. K., P. J. Sousanes, and K. Hill. 2021. Increased mean annual temperatures in 2014-2019 indicate permafrost thaw in Alaskan national parks. Arctic, Antarctic, and Alpine Research 53(1): 1-19.
- Type: Article
Born in Georgia in 1839, the son of an Irish-born slaveholder and a black woman, Michael Healy grew up amid the tumult of sectional conflict and civil war. Though he was born enslaved, he would go on to live an accomplished life at sea. At the peak of his career, Healy knew the expanse of the North Pacific and Arctic waters better than anyone.
- Type: Article
Black whalers were among the first Americans to reach Alaska, specifically its southeast panhandle, in the early 1840s. Some of these men had escaped enslavement in the American South, while others were free men of color from the North. It would have been difficult to find a more racially and geographically diverse industry than whaling in the nineteenth century.
Yukon - Charley Rivers National Preserve
The Great Video Reveal: Emerging Tech Tracks What Caribou Do
- Type: Article
Caribou—a type of deer closely related to reindeer—are intimately connected to their Arctic environment, which is experiencing rapid climate change. These animals are notoriously hard to study, but new video camera collars put the spotlight on how they’re responding.
Arctic Inventory & Monitoring Network
The role of old carbon in aquatic food webs
- Type: Article
Read a summary and get the link to this article that looks at the use of old carbon in Arctic fish food webs and potential impacts of climate change: Stanek, A.E., Carey, M.P., O'Donnell, J.A., Laske, S.M., Xu, X., Dunton, K.H., von Biela, V.R. 2024. Arctic fishes reveal a gradient in radiocarbon content and use. Limnology and Oceanography Letters.
- Type: Article
The Arctic continues to warm at a faster rate than the global average. The 2024 Arctic Report Card highlights record-breaking and near-record-breaking observations that demonstrate dramatic change, including Arctic tundra transformation from carbon sink to carbon source, declines of previously large inland caribou herds, and increasing winter precipitation.
Yellowstone National Park
Lamar Valley at Crystal Creek
- Type: Place
- Type: Article
Read a summary and get the link to a published paper that describes how caribou decide where to spend the winter based on previous experience. Gurarie, E., C. Beaupré, O. Couriot, M. D. Cameron, W. F. Fagan, and K. Joly. 2024. Evidence for an adaptive, large-scale range shift in a long-distance terrestrial migrant. Global Change Biology 30 (11): e17589.
Yellowstone National Park
Gibbon Falls
- Type: Place
- Type: Article
The National Park Service will coordinate with and distribute funding to other Department of the Interior bureaus and Alaska Native Tribal partners for installation of boot cleaning stations at select locations.
Arctic Inventory & Monitoring Network
Caribou in the same herd have different strategies for winter
- Type: Article
Read a summary and get the link to a published article on caribou migration. Joly, K., M. D. Cameron, and R. G. White. In press. Behavioral adaptation to seasonal resource scarcity by Caribou (Rangifer tarandus) and its role in partial migration. Journal of Mammalogy.
Rock Creek Park
Information Panel: Art for the People
- Type: Place
This outdoor exhibit details some of the sculptures within Meridian Hill Park.
Rock Creek Park
Noyes Armillary Sphere
- Type: Place
The Noyes Armillary Sphere by Carl Paul Jennewein was installed at the bottom of the Great Cascade in the 1930s. The sphere was vandalized in the 1960s and later disappeared after it had been removed from Meridian Hill Park for repair.
Rock Creek Park
Joan of Arc Statue
- Type: Place
The Joan of Arc Statue is the only equestrian statue of a woman in Washington, DC. Joan of Arc was a heroic French figure who claimed to receive religious visions telling her to fight for France and overthrow the English during the Hundred Years' War. Upon her capture and trial at the hands of the English, she was burned at the stake, leading the Catholic church to recognize her as a martyr in 1456. She was beatified in 1909 and canonized in 1920.
- Type: Article
Read a summary and get the link to an article on methane changes in Beringia since the last Glacial Maximum, in: Fuchs, M., M. Jones, E. Gowan, S. Frolking, K. W. Walter Anthony, G. Grosse, B. Jones, L. Brosius, J. A. O’Donnell, and C. Treat. 2024. Potential methane flux from Beringian coastal wetlands during the last deglaciation. Quaternary Science Reviews 344: 108976.
Kobuk Valley National Park
Onion Portage Archeological District National Historic Landmark
- Type: Place
The Onion Portage Archeological District National Historic Landmark is on the Kobuk River in the Kobuk Valley National Park. For 8000 years, people camped, made tools, prepared game, and eventually settled at Onion Portage.
- Type: Article
The National Park Service will use a collection of environmental DNA released by selected aquatic species to assess the presence, distribution, and composition of fish and macroinvertebrates in three parks in Alaska.