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- 2assisted migration
- 1CO2 efflux
- 1Land reclamation
- 1Nitrogen availability
- 1Northern Alberta
- 1Akande, Oluwabunmi J
- 1Casmey, Mariah
- 1Cortini, Francesco
- 1Lukose, Surabhi
- 1Sebastian Azcona, Jaime
- 1Stehelin, Tara
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Adaptation of white spruce populations to extreme climate events: implications for assisted migration practices in Western Canada
DownloadSpring 2019
The movement of seed sources from south to north has been proposed as a tool to mitigate the effect of climate change on forest productivity and mortality. Southern provenances, coming from warmer regions are expected to better utilize the extended growing seasons expected under climate warming....
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Adaptation of white spruce to climatic risk environments in spring: implications for management under climate change
DownloadFall 2022
The timing of spring dormancy release and bud break in trees is an adaptive trait with potentially important management implications. Depending on how spring phenology is controlled, climate warming may disrupt the synchronization of bud break with the available growing season. Further,...
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Burn severity and fire history in the northwestern Canadian boreal forest: drivers and ecological outcomes
DownloadSpring 2019
Wildfire is the dominant stand-renewing disturbance in the northwestern Canadian boreal forest. Fires burn extensive areas in Canada, disturbing an average of 1.96 Mha yr−1, primarily in the boreal zone. Fires generally occur every ~30 – > 200 years in this region, due in part to a lack of fuel...
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Climate change implications for distribution, phenology and conservation of Olive-sided Flycatchers (Contopus cooperi) and Western Wood-Pewees (C. sordidulus) in northwestern North America
DownloadFall 2020
Northwestern North America is predicted to experience some of the world’s greatest human-caused climate change. Understanding the impacts of associated changes will be imperative to the conservation and management of northern-breeding birds. In particular, long distance migrants and aerial...
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Growth and yield implications of site preparation, competition control, and climate in the western boreal forest
DownloadSpring 2011
The main goal of this thesis was to improve our understanding of the long-term effects of establishment treatments and climate change on lodgepole pine and white spruce growth in the western boreal forests. My dissertation also investigated the combined effects of climate and competition on white...
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Mixing tree species and density management to reduce drought susceptibility in coastal plantation forests of British Columbia
DownloadFall 2024
The coastal forests of British Columbia have been experiencing longer and more intense droughts in recent years. To evaluate the effects of species composition and density on drought sensitivity, a study was conducted in a Douglas-fir:western redcedar plantation established in 1992, in the...
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Modelling Short and Long-term Effects of Soil Cover Depth on Tree Growth and Productivity in Reclaimed Landscapes of Northern Alberta
DownloadSpring 2019
Success in establishing productive upland forests on landforms reconstructed using mining waste mainly depends on the cover materials and depth that determine water and nutrient availability for plant growth while mitigating the potential risks or limitations of the substrate that is being...
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Rhizosphere microbial response to predicted vegetation shifts and changes in rhizodeposition in boreal forest soils
DownloadFall 2018
The boreal forest is the single largest terrestrial store of carbon on Earth. In Canada’s boreal forest, approximately 23% of these carbon stocks are found in forest floors and 40% within mineral soils. The rhizosphere, soil under the direct influence of plant roots, is a hotspot for microbial...
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Soil CO2 Efflux in Response to Forest Disturbances and its Spatial Variation in a Boreal Mixedwood Forest
DownloadSpring 2019
Soil CO2 efflux is a key component of the terrestrial carbon cycle as it is the second largest carbon flux between the atmosphere and terrestrial ecosystems after photosynthesis. The spatial and temporal variation of soil CO2 efflux can be altered by various disturbancess, which in turn alter...