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We reconstructed late Holocene fluctuations of Kluane Lake in Yukon Territory from variations in bulk physical properties and carbon and nitrogen elemental and isotopic abundances in nine sediment cores. Fluctuations of Kluane Lake in the past were controlled by changes in climate and glaciers, which affected inflow of Slims and Duke rivers, the two largest sources of water flowing into the lake. Kluane Lake fluctuated within a narrow range, at levels about 25 m below the present datum, from about 5000 to 1300 cal yr BP. Low lake levels during this interval are probably due to southerly drainage of Kluane Lake to the Pacific Ocean, opposite the present northerly drainage to Bering Sea. Slims River, which today is...
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The article discusses the analysis of geochemical samples from the Geological Survey and Bureau of Mines (USBM) by the Alaska Division of Geological & Geophysical Surveys (DGGS). Topics included are the evaluation of Strategic and Critical Minerals (SCM) content of central Alaska Ray River watershed specimen, the documentation of location coordinates and pulp preparation methodology, and the analysis of rare earth and ore elements by ALS Minerals Laboratories.
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White phosphorus (WP) has been implicated in the deaths of thousands of waterfowl annually at Eagle River Flats (ERF), an estuarine salt marsh located on Fort Richardson near Anchorage, Alaska. The source of WP contamination at ERF was the firing of WP containing munitions into the area by the U.S. military. WP is a well-known toxicant and is lethal to a wide range of species. However, WP contamination at ERF is the first documented case of a U.S. Army munitions impact area contaminated with WP particles. This has led to the designation of ERF as a Superfund site by the U.S. Environmental Protection Agency, and the Army must follow the guidelines of remediation set by the Comprehensive Environmental Response, Compensation,...
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In North America, the last ice age is the most recent event with severe consequences on boreal species’ ranges. Phylogeographic patterns of range expansion in trembling aspen (Populus tremuloides) suggested that Beringia is likely to be a refugium and the “ice-free corridor” in Alberta may represent a region where small populations persisted during the last glacial maximum (LGM). The purpose of this study was to ascertain whether the origins of trembling aspen in western North America are reflected in the patterns of neutral genetic diversity and population structure. A total of 28 sites were sampled covering the northwestern part of aspen’s distribution, from Saskatchewan to Alaska. Twelve microsatellite markers...
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The contents of this report include: an update on Board membership and staff; a description of the draft implementation strategy to the Plan; the Planning Board's priorities for 2004-2005; a review of land use permits and water licences issued, and an explanation of how an approved Plan has affected those acivities; a list of action items that are currently being addressed; recommendations for groups to consider in the next year; the Planning Board's work plan for 2003-2004, and; the audited financial statements for 2003-2004. ... All regulatory agencies have to ensure that all licensed, permitted, and othe authorized activities related to the use of land, water, and the deposit of waste conform with the Plan. The...
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This thesis investigates the theory and practice of integration in resource and environmental management. Research on integration is growing as a result of the escalating demands placed on resources, an increase in the quality and quantity of information available concerning the environment, and the increased involvement and coordination of partners and participants in resource and environmental decision-making. Focus is placed on several resource and environmental management processes in the Southwest Yukon, including wildlife management, protected areas management, forest management and environmental assessment. A case study approach is utilized to examine the perception and practical application of integration...
map background search result map search result map Making forest management work in the Gwich'in settlement area, Northwest Territories Stock status of coho salmon in upper Cook Inlet: report to the Alaska Board of Fisheries, January 2005 Eagle River Flats Remediation Project. Comprehensive Bibliography - 1950 to 1998 Isolation and Identification of Photobacterium phosphoreum from an Unexpected Niche: Migrating Salmon Principal facts for gravity data collected in the Copper River basin area, southcentral Alaska Distribution, speciation, and transport of mercury in stream-sediment, stream-water, and fish collected near abandoned mercury mines in southwestern Alaska, USA Genetic variation in caribou and reindeer (Rangifer tarandus ) Competitive interactions across a soil fertility gradient in a multispecies forest Assessing integration in resource and environmental management in the Southwest Yukon Area management report for the recreational fisheries of the Upper Copper/Upper Susitna River Management Area, 1996-1997 Analyses of Historic U.S. Bureau of Mines Samples for Geochemical Trace-Element and Rare-Earth-Element Data from the Ray River Watershed, and Kanuti and Hodzana Rivers Uplands, Central Alaska Eagle River Flats pond pumping remediation project: fourth-year operations under the record of decision Annual report of the Gwich'in Land Use Planning Board, April 2003 - March 2004 Flank collapse at Mount Wrangell, Alaska, recorded by volcanic mass-flow deposits in the Copper River lowland Timing and cause of water level fluctuations in Kluane Lake, Yukon Territory, over the past 5000 years White spruce regeneration following a major spruce beetle outbreak in forests on the Kenai Peninsula, Alaska Fishery Management Report for Sport Fisheries in the Arctic-Yukon- Kuskokwim Management Area, 2000-2001 Strategic Plan for Salmon Research in the Kuskokwim River Drainage Fine-scale assessment of genetic diversity of trembling aspen in northwestern North America Eagle River Flats Remediation Project. Comprehensive Bibliography - 1950 to 1998 Eagle River Flats pond pumping remediation project: fourth-year operations under the record of decision Timing and cause of water level fluctuations in Kluane Lake, Yukon Territory, over the past 5000 years White spruce regeneration following a major spruce beetle outbreak in forests on the Kenai Peninsula, Alaska Analyses of Historic U.S. Bureau of Mines Samples for Geochemical Trace-Element and Rare-Earth-Element Data from the Ray River Watershed, and Kanuti and Hodzana Rivers Uplands, Central Alaska Flank collapse at Mount Wrangell, Alaska, recorded by volcanic mass-flow deposits in the Copper River lowland Area management report for the recreational fisheries of the Upper Copper/Upper Susitna River Management Area, 1996-1997 Principal facts for gravity data collected in the Copper River basin area, southcentral Alaska Distribution, speciation, and transport of mercury in stream-sediment, stream-water, and fish collected near abandoned mercury mines in southwestern Alaska, USA Assessing integration in resource and environmental management in the Southwest Yukon Making forest management work in the Gwich'in settlement area, Northwest Territories Stock status of coho salmon in upper Cook Inlet: report to the Alaska Board of Fisheries, January 2005 Strategic Plan for Salmon Research in the Kuskokwim River Drainage Annual report of the Gwich'in Land Use Planning Board, April 2003 - March 2004 Competitive interactions across a soil fertility gradient in a multispecies forest Genetic variation in caribou and reindeer (Rangifer tarandus ) Isolation and Identification of Photobacterium phosphoreum from an Unexpected Niche: Migrating Salmon Fishery Management Report for Sport Fisheries in the Arctic-Yukon- Kuskokwim Management Area, 2000-2001 Fine-scale assessment of genetic diversity of trembling aspen in northwestern North America