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Boreal regions contain more than half of the carbon in forested regions of the world and over 60% of the world's surface freshwater. Carbon storage and the flood control and water filtration provided by freshwaters and wetlands have recently been identified as the most important ecosystem services provided by boreal regions, with a value many times greater than current resource exploitation. Ecosystem services and sensitive ways of detecting their impairment have so far not been fully included in boreal conservation planning. Climate warming, via its effect on permafrost melting, insect damage, and forest fire, threatens to trigger large positive carbon feedbacks that may enhance the concentrations of greenhouse...
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Climate change is no longer debated in the context of whether or not it is occurring, but rather in the context of how rapid and extensive that change will be. This is the global situation to which the biomes of national parks in Canada and the United States must adapt. Through the use of the MC1 Dynamic Global Vegetation Model (DGVM) this thesis constructs projections of possible vegetation response of ten biome classifications to the impacts of continental-scale climate change in seven regions: Atlantic, Great Lakes, Mountain, Northern, Pacific, Prairie, and Southern. It then analyzes the potential ways in which DGVMs can be utilized by park management schemes in accommodating for future climate change in the...
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The first and strongest signs of global-scale climate change exist in the high latitudes of the planet. Evidence is now accumulating that the Arctic is warming, and responses are being observed across physical, biological, and social systems. The impact of climate change on oceanographic, sea-ice, and atmospheric processes is demonstrated in observational studies that highlight changes in temperature and salinity, which influence global oceanic circulation, also known as thermohaline circulation, as well as a continued decline in sea-ice extent and thickness, which influences communication between oceanic and atmospheric processes. Perspectives from Inuvialuit community representatives who have witnessed the effects...
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Human activities are altering many factors that determine the fundamental properties of ecological and social systems. Is sustainability a realistic goal in a world in which many key process controls are directionally changing? To address this issue, we integrate several disparate sources of theory to address sustainability in directionally changing social-ecological systems, apply this framework to climate-warming impacts in Interior Alaska, and describe a suite of policy strategies that emerge from these analyses. Climate warming in Interior Alaska has profoundly affected factors that influence landscape processes (climate regulation and disturbance spread) and natural hazards, but has only indirectly influenced...
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Recent interest in sustainable forest management planning in the Yukon has coincided with growing public awareness of climate change, providing an opportunity to explore how forestry plans are incorporating climate change. In this paper, the Strategic Forest Management Plans for the Champagne and Aishihik First Nations Traditional Territory (CATT) and the Teslin Tlingit Traditional Territory (TTTT) are examined for evidence of adaptation to climate change. For each plan, management policies and practices that are also recognized as ways to adapt to climate change are identified to provide information on the incremental costs and benefits of additional adaptation efforts. A typology for classifying sustainable forest...
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Algae are important to many of the processes that characterize wetland ecosystems. Despite their importance, we know relatively little about the factors that regulate algal communities in wetlands. This is particularly true for northern boreal regions where wetlands are abundant and are considered to be extremely vulnerable to disturbances associated with climate change. My dissertation research investigates how nutrients, grazing, light, and hydrology regulate algal primary production and taxonomic structure in high latitude wetlands. I documented spatial and temporal variability in algal structure and function in six northern boreal wetlands in interior Alaska to determine the contribution of algal primary production...
    map background search result map search result map Comprehensive conservation planning to protect biodiversity and ecosystem services in Canadian boreal regions under a warming climate and increasing exploitation Climate change adaptation and regional forest planning in southern Yukon, Canada Regulation of benthic algal structure and function in northern boreal wetlands Vegetation response to climate change in North American national parks: Policy & management implications Examining barriers and opportunities for sustainable adaptation to climate change in Interior Alaska An ecosystem approach to wildlife management in wilderness areas: a case study of the Greater Kluane Region Protected Areas in Northern Canada: Designing for Ecological Integrity. Phase I Report. CCEA Occasional Paper No. 16 The impact of Pleistocene climate change on an ancient arctic–alpine plant: multiple lineages of disparate history in Oxyria digyna The Changing Climate of the Arctic Sustained rapid shrinkage of Yukon glaciers since the 1957–1958 International Geophysical Year Contribution of Alaskan glaciers to sea-level rise derived from satellite imagery Recent volume and area changes of Kaskawulsh Glacier, Yukon, Canada Refugia: identifying and understanding safe havens for biodiversity under climate change Ecological consequences of climate change: mechanisms, conservation and management Changing snow and shrub conditions affect albedo with global implications Koyukuk River Moose Management Plan 2000-2005 Unit 24 and the northern portion of Unit 21D Denali Park Road: final vehicle management plan and environmental impact statement Seeking a balance assessing the future impacts of conservation and development in the Mackenzie watershed Regulation of benthic algal structure and function in northern boreal wetlands Changing snow and shrub conditions affect albedo with global implications Recent volume and area changes of Kaskawulsh Glacier, Yukon, Canada Sustained rapid shrinkage of Yukon glaciers since the 1957–1958 International Geophysical Year Denali Park Road: final vehicle management plan and environmental impact statement An ecosystem approach to wildlife management in wilderness areas: a case study of the Greater Kluane Region Climate change adaptation and regional forest planning in southern Yukon, Canada Examining barriers and opportunities for sustainable adaptation to climate change in Interior Alaska Ecological consequences of climate change: mechanisms, conservation and management Koyukuk River Moose Management Plan 2000-2005 Unit 24 and the northern portion of Unit 21D Seeking a balance assessing the future impacts of conservation and development in the Mackenzie watershed Contribution of Alaskan glaciers to sea-level rise derived from satellite imagery The Changing Climate of the Arctic Vegetation response to climate change in North American national parks: Policy & management implications The impact of Pleistocene climate change on an ancient arctic–alpine plant: multiple lineages of disparate history in Oxyria digyna Refugia: identifying and understanding safe havens for biodiversity under climate change Comprehensive conservation planning to protect biodiversity and ecosystem services in Canadian boreal regions under a warming climate and increasing exploitation Protected Areas in Northern Canada: Designing for Ecological Integrity. Phase I Report. CCEA Occasional Paper No. 16