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Skip to Search Results- 2Isaac-Renton, Miriam G
- 1Agrawal, Nikhil
- 1Arregoces, Julio
- 1Baah-Acheamfour, Mark
- 1Boyce, Scott Samuel David
- 1Bozan, Ozgur
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Fall 2017
Multiple novel and rapidly changing environmental factors (i.e. anthropogenic stressors) are increasingly affecting ecological communities, and their functional roles in ecosystems. Consequently, freshwater biodiversity has declined worldwide; however, the functional impacts of this loss should...
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EFFECTS OF CLIMATE CHANGE, VEGETATION AND ROADS ON CARIBOU DISTRIBUTION IN WESTERN NORTH-AMERICA
DownloadFall 2017
Caribou (Rangifer tarandus) are a vital component of the cultural history and contemporary existence of First Nations and northern communities. However, caribou habitat is increasingly threatened by cumulative effects of climate change and land-use pressures from human settlement, forestry, and...
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Soil Organic Carbon Content and Stability, and Greenhouse Gas Emissions in Three Agroforestry Systems in Central Alberta, Canada
DownloadFall 2016
Western Canada’s prairie region is extensively cultivated for agricultural production, which is a large source of greenhouse gas (GHG) emissions. Agroforestry systems are common land uses across Canada, which integrate trees into the agricultural landscape and could play a substantial role in...
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Projecting boreal bird responses to climate change considering uncertainty, refugia, vegetation lags, and post-glaciation history
DownloadSpring 2016
Often referred to as North America’s bird nursery, the boreal forest biome provides a productive environment for breeding birds, supporting high species diversity and bird numbers. These birds are likely to shift their distributions northward in response to rapid climate change over the next...
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Identifying seasonal Lake Sturgeon (Acipenser fulvescens) movement patterns and habitat selection in the South Saskatchewan River Basin
DownloadFall 2016
Lake Sturgeon (Acipenser fulvescens Rafinesque 1817) have experienced population declines throughout their range. In Alberta, low density age-class distributions, irregular recruitment, critically low spawning potential ratios and other factors led to a 2007 designation of “Threatened” for this...
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Potential impact of climate change to the future climate and streamflow of the Mackenzie River Basin
DownloadFall 2016
The Mackenzie River provides a critical corridor for Canada’s Arctic transportation network and the Mackenzie River Basin (MRB), the largest river basin of Canada, has been subjected to the impact of climate change. In this study, we have investigated the potential impacts of climate change on...
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Environmental Migration in an Era of Accelerated Climate Change: Proposing a Normative Framework for International Migrant Rights and Domestic Migration Policy
DownloadFall 2015
This dissertation takes up the challenge of addressing the growing gap between international human rights and the changing face of migration in a period of accelerated climate change. The conditions of climate change are increasingly displacing peoples through rising sea levels, desertification...
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Fall 2015
Specialist predators with a limited diet may be less adaptable to environmental change than generalists, which consume a diversity of prey. As the climate changes, ecological homogenization is occurring, where generalist species outcompete specialists, reducing ecosystem complexity. In Arctic...
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Assessing stress in western Hudson Bay polar bears using hair cortisol concentration as a biomarker
DownloadFall 2015
The development of novel biomarkers to help assess whether polar bear (Ursus maritimus) health is impacted by long-term physiological stress associated with climate change represents an emerging area of research. With progressively greater reductions in sea ice cover and a corresponding decrease...
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Modeling the impacts of recent climate change on ecosystem productivity across North America
DownloadFall 2015
There is evidence of warming and changes in precipitation over recent decades in most regions of North America (NA) that are affecting ecosystem productivity. The impacts of these changes on land-atmosphere carbon exchange over a wide range of biomes are spatially heterogeneous and uncertain. In...