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This research was carried out to estimate the winter fluxes of CO2 and CH4 using the concentration profile method and the chamber method in black spruce forest soils in central Alaska during the winter of 2004/5. The average winter fluxes of CO2 and CH4 by chamber and profile methods were 0.24 +/- 0.06 (SE; standard error) and 0.21 +/- 0.06 gCO(2)-C/m(2)/d, and 21.4 +/- 5.6 and 21.4 +/- 14 mu gCH(4)-C/m(2)/hr. This suggests that the fluxes estimated by the two methods are not significantly different based on a one-way ANOVA with a 95% confidence level. The hypothesis on the processes of CH4 transport/production/emission in underlying snow-covered boreal forest soils is proven by the pressure differences between...
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This thesis addressed how Alaska Natives of the Iliamna Lake region have practiced subsistence and indigenous religious traditions to live sustainably in their local environments and how their ways of living have been practiced from the 1960s to 2013. Research was framed from the perspective of traditional ecological knowledge (TEK) to explore the residents' beliefs, practices, and the long-term observation of their local environment in Pedro Bay (predominantly Dena'ina) and Newhalen (predominantly Central Yup'ik). Research methods used included participant observations, key respondent interviews, and mapping exercises. Analysis of the qualitative data indicates that Pedro Bay and Newhalen residents have practiced...
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ABSTRACT. Lightning and fire characteristics within the Northwest Territories (NWT) jurisdiction of the Mackenzie Basin between 1994 and 1999 are examined using data from the lightning detection network operating in the NWT and from the national Large Fire Database maintained by the Canadian Forest Service. The convective storm season with associated lightning activity over this region is short hut intense, with a strong peak in cloud-to-ground lightning during July. The maximum area of lightning activity is influenced by local moisture sources and by topography. The diurnal distribution of cloud-to-ground flashes indicates that most of the lightning was linked to thunderstorms initiated by daytime heating. The...
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This report presents community-specific wild food consumption rate estimates for rural Alaska populations. The estimates are indirect measures of consumption, based on information on the annual harvest and use of wild resources from household surveys conducted by the Alaska Department of Fish and Game, Division of Subsistence. For about 220 communities, one or more. An anlysis of harvest vs. consumption rates, with descriptions of measures of consumption useful for risk assessment related to food borne contaminants.
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This report summarizes the results of research conducted in 2012 on the subsistence harvest and uses of wild foods for the study year of 2011 in 8 Kuskokwim and Yukon River communities: Napakiak and Napaskiak in the Lower Kuskokwim; McGrath, Takotna, and Nikolai in the Upper Kuskokwim; and Russian Mission, Anvik, and Grayling in the lower-middle Yukon River. The total estimated population of all study communities was 2,023. The principal questions addressed by the Donlin Gold Subsistence Research Program were how many wild foods were harvested for subsistence, the harvest amounts, and how these foods were distributed within and between communities. Related questions addressed the role of wild foods in Alaska’s economy,...
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Although the three papers that comprise this thesis analyze distinct problems they are all rooted in the study of human ecology. To that end they are based on the same data set and share the same goals. Participatory research methods involving semi-structured interviews with twenty community experts, seasonal rounds and human ecological mapping are employed to analyze the subsistence livelihoods of the Koykon Athapaskan people of Ruby Village as a manifestation of human ecological relations. Chapter 1 examines the contribution of indigenous knowledge to understandings of hydrologic change in the Yukon River and its tributaries including observations of alterations in sediment and river ice regimes. Chapter 2 considers...
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Organochlorine chemical residues and elemental contaminants were measured in northern pike (Esox lucius), longnose sucker (Catostomus catostomus), and burbot (Lota lota) from 10 sites in the Yukon River Basin (YRB) during 2002. Contaminant concentrations were compared to historical YRB data and to toxicity thresholds for fish and piscivorous wildlife from the scientific literature. A risk analysis was conducted to screen for potential hazards to piscivorous wildlife for contaminants that exceeded literature-based toxicity thresholds. Concentrations of total DDT (sum of p,p'-homologs; 1.09–13.6 ng/g), total chlordane (0.67–7.5 ng/g), dieldrin (<0.16–0.6 ng/g), toxaphene (<11–34 ng/g), total PCBs (<20–87 ng/g), TCDD-EQ...
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PURPOSE: The exchange of lands between the U.S. Fish and Wildlife Service (FWS) and Doyon, Limited is proposed to enhance the Yukon Flats National Wildlife Refuge of Alaska. Doyon is the largest private landowner in the refuge and an Alaska Native regional corporation that has been interested in acquiring federal oil and gas interests since the refuge was established in 1980. Under the terms of an agreement in principle between the FWS and Doyon, the U.S. government would receive fee title to lease 150,000 acres of Doyon lands, including both surface and subsurface rights, with priority fish and wildlife habitats that can be incorporated into the refuge. Doyon would receive fee title to 110,000 acres of refuge lands,...
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RÉSUMÉ. Les gouvernements des Premières Nations du sud du Yukon figurent au rang des partenaires du projet des névés du Yukon, dans le cadre duquel des chercheurs font des fouilles dans les névés de sommet de montagnes où d'anciens artefacts de chasse sont retrouvés. Les programmes du patrimoine administrés par ces gouvernements, qui coordonnent la participation de leurs citoyens à ces activités, mettent l'accent sur le patrimoine culturel immatériel. Aux yeux de ces gouvernements, ce projet constitue une occasion de renforcer leur culture, de faire en sorte que les citoyens connaissent mieux leur histoire et d'exprimer les valeurs des Premières Nations en ce qui a trait aux ressources culturelles. La principale...
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Contents: Introduction -- The Northway Whitefish Project -- Theoretical approach -- Thesis structure -- Background and methods -- Gender, knowledge, and environmental change related to humpback whitefish (Coregonus pidschian) in Interior Alaska -- Time, expertise, and more time : four heuristics for developing trust between researchers and residents in participatory studies of subsistence resources -- Generating knowledge and questions about humpback whitefish (Coregonus pidschian) in Interior Alaska though connecting local and scientific experts -- Synthesis and discussion -- References -- Appendix 1. Northway guide to researchers -- Appendix 2. Interview guides used during this study -- Appendix 3. Release forms...
map background search result map search result map Linking local knowledge and fisheries science : the case with humpback whitefish (Coregonus pidschian) in Interior Alaska Environmental Contaminants in Fish and Their Associated Risk to Piscivorous Wildlife in the Yukon River Basin, Alaska Assessment of winter fluxes of CO2 and CH4 in boreal forest soils of central Alaska estimated by the profile method and the chamber method: a diagnosis of methane emission and implications for the regional carbon budget Plants and habitats- a consideration of Dene ethnoecology in northwestern Canada Proposed Land Exchange Yukon Flats National Wildlife Refuge Final Environmental Impact Statement. Volume 1. Abstract, Executive Summary, and Chapters 1 through 5 Human Ecological Dimensions Of Change In The Yukon River Basin: A Case Study Of The Koyukon Athabascan Village Of Ruby, AK The politics of adaptation: Subsistence livelihoods and vulnerability to climate change in the Koyukon Athabascan village of Ruby, Alaska Lightning and Fires in the Northwest Territories and Responses to Future Climate Change Twenty-five years of vegetation change along a putative successional chronosequence on the Tanana River, Alaska Sustainability of Arctic Communities: An Interdisciplinary Collaboration of Researchers and Local Knowledge Holders Reconciling Traditional Knowledge, Food Security, and Climate Change: Experience From Old Crow, YT, Canada The subsistence harvest  in 8 communities in the Kuskokwim River drainage and lower Yukon River, 2011 Cultural Landscapes, Past and Present, and the South Yukon Ice Patches PLANTS, PLACES, AND THE STORIED LANDSCAPE: Looking at First Nations Perspectives on Plants and Land Indigenous observations of climate change in the Lower Yukon River Basin, Alaska Subsistence practices of Iliamna Lake Villages: An investigation of dynamics of traditional and local ecological knowledge Assessment of winter fluxes of CO2 and CH4 in boreal forest soils of central Alaska estimated by the profile method and the chamber method: a diagnosis of methane emission and implications for the regional carbon budget The politics of adaptation: Subsistence livelihoods and vulnerability to climate change in the Koyukon Athabascan village of Ruby, Alaska Twenty-five years of vegetation change along a putative successional chronosequence on the Tanana River, Alaska Sustainability of Arctic Communities: An Interdisciplinary Collaboration of Researchers and Local Knowledge Holders Reconciling Traditional Knowledge, Food Security, and Climate Change: Experience From Old Crow, YT, Canada Human Ecological Dimensions Of Change In The Yukon River Basin: A Case Study Of The Koyukon Athabascan Village Of Ruby, AK Linking local knowledge and fisheries science : the case with humpback whitefish (Coregonus pidschian) in Interior Alaska Subsistence practices of Iliamna Lake Villages: An investigation of dynamics of traditional and local ecological knowledge Indigenous observations of climate change in the Lower Yukon River Basin, Alaska Cultural Landscapes, Past and Present, and the South Yukon Ice Patches Proposed Land Exchange Yukon Flats National Wildlife Refuge Final Environmental Impact Statement. Volume 1. Abstract, Executive Summary, and Chapters 1 through 5 Plants and habitats- a consideration of Dene ethnoecology in northwestern Canada The subsistence harvest  in 8 communities in the Kuskokwim River drainage and lower Yukon River, 2011 PLANTS, PLACES, AND THE STORIED LANDSCAPE: Looking at First Nations Perspectives on Plants and Land Environmental Contaminants in Fish and Their Associated Risk to Piscivorous Wildlife in the Yukon River Basin, Alaska Lightning and Fires in the Northwest Territories and Responses to Future Climate Change