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Paper prepared for presentation at the Session Fish Habitat Compensation – A Requirement for Some Transportation Projects Of the 2008 Annual Conference of the Transportation Association of Canada Toronto, Ontario
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Snowmachines and the alterations made to the landscape from their activity can have profound impacts on the dynamics of wolves (Canis lupus ) and their prey. Snowmachine activity can displace animals and disrupt their activity and movement patterns; conversely, the creation of trails can enable energy-efficient travel by wolves, thereby increasing the likelihood of encountering and successfully capturing prey. High hunting and trapping pressure could exacerbate these effects, particular during critical late-winter periods when animals are most stressed and anthropogenic activity is greatest. With its dense network of trails, the Nelchina Basin in south-central Alaska presented a unique opportunity to assess quantitatively...
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Recent studies of contaminants under the Canadian Northern Contaminants Program (NCP) have substantially enhanced our understanding of the pathways by which contaminants enter Canada's Arctic and move through terrestrial and marine ecosystems there. Building on a previous review, we highlight new knowledge developed under the NCP on the sources, occurrence and pathways of contaminants (organochlorines, Hg, Pb and Cd, PAHs, artificial radionuclides). Starting from the global scale, we examine emission histories and sources for selected contaminants focussing especially on the organochlorines. Physical and chemical properties, transport processes in the environment (e.g. winds, currents, partitioning), and models...
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This paper quantifies the influence of anthropogenic linear disturbances on fire ignition frequency in the boreal forests of western Canada. Specifically, we tested if linear features increase the frequency of lightning fires, and whether this relationship is affected by spatial resolution. We considered fires that ignited between 1995 and 2002 within a similar to 67 000 km(2) region of boreal mixed- wood forest in north-eastern Alberta where linear features are highly abundant and spatially heterogeneous. We constructed Poisson, Negative Binomial and Zero-Inflated Poisson models at two spatial resolutions (similar to 10 000 and similar to 2400 ha), including covariates for linear feature densities, forest composition,...
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The emulation of natural disturbances such as fire is a prominent harvest management strategy for ecosystems in Canada's boreal forest region, but the effect of harvesting on subsequent lightning fire occurrence has not been studied systematically in the mixedwood boreal forest. We quantified the relationship between annual patterns of lightning fire initiation, forest composition, lightning, and fire weather conditions over eight years (1994-2001) in a 60,000 km(2) region of actively harvested mixedwood boreal forest in western Canada. Our analyses illustrated that forest harvesting and burning had opposite effects on subsequent fire initiation, so harvest was not a surrogate for fire. Fire initiation increased...
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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,...


map background search result map search result map Fish habitat compensation projects along Yukon highways Remediating and monitoring white phosphorus contamination at Eagle River flats (operable unit C), Fort Richardson, Alaska: FY 99 report Contaminants in the Canadian Arctic: 5 years of progress in understanding sources, occurrence and pathways Tulsequah chief project fish and wildlife studies: annual progress report: year 2000 WETLANDS IN THE WORKING LANDSCAPE… AN INTEGRATED APPROACH Ecological overview of Denali National Park and Preserve Road network density correlated with increased lightning fire incidence in the Canadian western boreal forest Disturbance history affects lightning fire initiation in the mixedwood boreal forest: Observations and simulations Implications of climate change for northern Canada: The physical environment Remediating and monitoring white phosphorus contamination at Eagle River Flats (Operable Unit C), Fort Richardson, Alaska Proposed Land Exchange Yukon Flats National Wildlife Refuge Final Environmental Impact Statement. Volume 1. Abstract, Executive Summary, and Chapters 1 through 5 Influence of Linear Features and Snowmachine Activity on Resource Selection by Wolves Trends in permafrost conditions and ecology in northern Canada Tulsequah Chief Mine Acid Rock Drainage: Whole Body Metals Concentrations in Dolly Varden Char Shrub Control in Conservation Reserve Program Lands in Interior Alaska Health Impact Assessment for Proposed Coal Mine at Wishbone Hill, Matanuska-Susitna Borough Alaska. Prepared For: Alaska Department of Health and Social Services, Health Impact Assessment Program The politics of adaptation: Subsistence livelihoods and vulnerability to climate change in the Koyukon Athabascan village of Ruby, Alaska The politics of adaptation: Subsistence livelihoods and vulnerability to climate change in the Koyukon Athabascan village of Ruby, Alaska Health Impact Assessment for Proposed Coal Mine at Wishbone Hill, Matanuska-Susitna Borough Alaska. Prepared For: Alaska Department of Health and Social Services, Health Impact Assessment Program Remediating and monitoring white phosphorus contamination at Eagle River flats (operable unit C), Fort Richardson, Alaska: FY 99 report Remediating and monitoring white phosphorus contamination at Eagle River Flats (Operable Unit C), Fort Richardson, Alaska Implications of climate change for northern Canada: The physical environment Influence of Linear Features and Snowmachine Activity on Resource Selection by Wolves Ecological overview of Denali National Park and Preserve Proposed Land Exchange Yukon Flats National Wildlife Refuge Final Environmental Impact Statement. Volume 1. Abstract, Executive Summary, and Chapters 1 through 5 Shrub Control in Conservation Reserve Program Lands in Interior Alaska Tulsequah chief project fish and wildlife studies: annual progress report: year 2000 Tulsequah Chief Mine Acid Rock Drainage: Whole Body Metals Concentrations in Dolly Varden Char Fish habitat compensation projects along Yukon highways WETLANDS IN THE WORKING LANDSCAPE… AN INTEGRATED APPROACH Contaminants in the Canadian Arctic: 5 years of progress in understanding sources, occurrence and pathways Trends in permafrost conditions and ecology in northern Canada Road network density correlated with increased lightning fire incidence in the Canadian western boreal forest Disturbance history affects lightning fire initiation in the mixedwood boreal forest: Observations and simulations