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Skip to Search Results- 1Aziz Ullah, .
- 1Beck, Jackson, L
- 1Colgan, Lindsay Jessica
- 1Dettlaff, Margarete
- 1Fellrath, Evan G
- 1Ishangulyyeva, Guncha
- 4Mountain pine beetle
- 3Jack pine
- 2Dendroctonus ponderosae
- 2Jack pine budworm
- 2Lodgepole pine
- 2Pinus contorta
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Advancing Forest Health Monitoring: Harnessing the Power of Deep Learning Computer Vision for Remote Sensing Applications
DownloadFall 2023
Forests provide immense economic, ecological, and societal values, making forest health monitoring (FHM) a crucial task for guiding conservation and management of these essential ecosystems. Drones have seen increased popularity in this domain due to their ability to collect high-resolution,...
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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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Characterization, restoration, and assembly of fungal communities in lodgepole pine forests impacted by recent disturbances
DownloadSpring 2021
Novel disturbance regimes have impacted boreal forest with unknown consequences for belowground communities and underlying ecological processes. Soil fungi are an integral component of belowground communities and are particularly sensitive to disturbances. In the Canadian boreal forest, common...
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Chemotypic variations of lodgepole pine affect mountain pine beetle behaviour and growth of its symbiotic fungus
DownloadSpring 2020
Plants generally show large chemotypic variations in susceptibility to phytophagous insects and pathogens. Plant chemical defenses, or secondary compounds, are important components of plant resistance to pest organisms. Among plants, coniferous trees produce complex oleoresins that contain toxic...
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Diverting Resources to Turn on Resistance: Influences of Biotic and Abiotic Stresses on Aspen Seedlings
DownloadFall 2012
The interactions between biotic and abiotic stresses and their influence on plant reserves in non-photosynthetic tissues (i.e., roots and stems) and the role of plant reserves in tree defenses are poorly understood. Aspen seedlings grown under different conditions (light, fertilizer) were grouped...
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Drivers of trembling aspen secondary chemistry and impacts on plant communities in the aspen parkland.
DownloadSpring 2020
Plant secondary chemicals are fundamental mechanisms by which plants interact with their environments, including defending against herbivores, attracting pollinators, altering neighbouring plant fitness or facilitating plant-plant communication. Yet our understanding of the extent to which...
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Ecology and life history of Coccophagus gossypariae (Hymenoptera: Aphelinidae), a parasitoid of Eriococcus spurius (Hemiptera: Eriococcidae)
DownloadSpring 2018
The American elm (Ulmus americana) is a valuable component of urban forests in Alberta. In many Alberta municipalities, the health of these trees is being heavily impacted by the invasive scale insect Eriococcus spurius (Hemiptera: Eriococcidae). Biological control of scales using hymenopteran...
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Host Plant Chemistry Affects Fungal Interactions, Which Influence the Production of Volatile Fungal Metabolites
DownloadSpring 2019
Mountain pine beetle (MPB) has recently expanded its host range to novel jack pine forests in Alberta. Invasion success of MPB may depend on the outcome of interactions between its primary symbiotic fungus Grosmannia clavigera with other organisms sharing the same host. Among resources-sharing...
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Induced monoterpene responses in jack pine: defence against jack pine budworm and a fungal associate of the mountain pine beetle
DownloadFall 2010
My thesis research investigated monoterpene responses in jack pine (Pinus banksiana Lamb.) to different agents to better understand how these responses may influence the spread of the mountain pine beetle (Dendroctonus ponderosae Hopkins; MPB) in the boreal forest. The results support that...
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Interactions Between Host Trees, Bacteria, and Fungi: Impacts on Mountain Pine Beetle (Dendroctonus ponderosae) Reproduction
DownloadFall 2012
Warming winter trends due to climate change have allowed for a range expansion of the mountain pine beetle, and the beetle now threatens Canada’s economically and ecologically important jack pine forests. The beetle’s success in jack pine trees will depend upon successful colonization of the...