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- 6Dendrochronology
- 5Mountain pine beetle
- 3White spruce
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- 2Climate change
- 1Baydack, Micki
- 1Beck, Jackson, L
- 1Campos Valverde, Rebeca
- 1Cigan, Paul W
- 1Gendreau-Berthiaume, Benoit
- 1Goodsman, Devin W.
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Mountain pine beetle outbreak and ectomycorrhizal feedback: the ecology of recovery in beetle killed forests
DownloadSpring 2014
The expansion of mountain pine beetle (Dendroctonus ponderosae; MPB) into naïve host ecosystems has been met by gaps in two key areas of research: (A) affects on the chemistry of forest soils, and (B) impacts on the regeneration of tree seedlings. To investigate linkages between both, we paired...
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Identifying historical climate-growth limitations of white spruce (Picea glauca) populations across North America
DownloadSpring 2021
Climate change may cause reduced forest productivity and higher tree mortality due to water deficits that result from increased evapotranspiration. Such limitations may occur in some areas of the North American boreal forest, where precipitation is low and warming trends are high. This thesis...
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Pre-Commercial Thinning Increases Merchantability and Reduces Western Gall Rust Infections in Lodgepole Pine
DownloadFall 2023
Alberta’s forest industry is predicted to be impacted by a short to medium-term decline in timber supply. Intensive silviculture tools, such as pre-commercial thinning, have been shown to increase individual tree growth, shorten rotation lengths and improve stand merchantability in important...
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Social-ecological reclamation in the Northwest Territories: A framework for healing human-caribou relations
DownloadFall 2018
The impacts of mining activity on human-caribou relationships in the Northwest Territories have been a focus of study in both the natural and social sciences for decades. Guided by Łutsel K’e Dene First Nation elders and harvesters, this study used dendrochronology methods and best practices for...
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Impact of Mountain Pine Beetle Attack on Water Balance of Lodgepole Pine Forests in Alberta
DownloadSpring 2013
In recent decades mountain pine beetle (MPB) has become an important natural disturbance agent in western Canada, thus the impact of this disturbance will likely be an important component affecting water resources in this region. Despite the widespread recognition of the potential changes, there...
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Tree population responses to extreme climate events to guide reforestation under climate change
DownloadSpring 2018
As climates warm and extreme climatic events occur with more frequency and severity, maintaining forest health and productivity may involve planting seed sources from warmer, drier areas. To guide such reforestation strategies, this work analyzes the risks of both climate change and assisted...
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Changes in soil fungal communities following logging and salvage logging disturbances decrease lodgepole pine (Pinus contorta var. latifolia) seedling performance
DownloadSpring 2019
Disturbances are frequent events across the Canadian boreal forests and can affect both below and above ground ecosystem processes at various temporal and spatial scales. We have limited understanding of how changes in the below ground fungal communities affect above ground plant communities....
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Transpiration Response of Residual Lodgepole Pine After Partial-cut and Strip-shelterwood Harvesting in Alberta's Southern Rocky Mountains
DownloadFall 2019
Forest harvesting reduces forest canopy cover which can reduce evapotranspiration and affect the hydrologic regime of watersheds. Prior research has shown while transpiration is reduced by the removal of trees, it can also affect soil moisture and meteorological variables (e.g....
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Physiological, ecological and environmental factors that predispose trees, stands and landscapes to infestation by tree-killing Dendroctonus beetles
DownloadSpring 2013
In the last century the frequency and severity of outbreaks of tree-killing Dendroctonus beetles (Coleoptera: Curculionidae) have increased. Small-scale drivers within trees likely drive outbreak dynamics across landscapes. At a small scale, variation in carbohydrate availability within the stems...
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Reaching new heights: Chemical signatures of lodgepole pine trees change with elevation, but not with latitude
DownloadFall 2019
The lodgepole pine (Pinus contorta var. latifolia) is Alberta’s provincial tree and critical to the forest industry. This pine species is the historical host for mountain pine beetle (Dendroctonus ponderosae Hopkins, Coleoptera: Curculionidae, Scolytinae). In western Canada, mountain pine beetle...