Search
Skip to Search Results- 4Mark A. Lewis
- 2Mélodie Kunegel-Lion
- 1Andrew Liebhold
- 1Andrew W. Bateman
- 1Barbara J. Bentz
- 1Danielle L. Cantrell
- 11Graduate and Postdoctoral Studies (GPS), Faculty of
- 11Graduate and Postdoctoral Studies (GPS), Faculty of /Theses and Dissertations
- 6Biological Sciences, Department of
- 6Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 3Mathematical and Statistical Sciences, Department of
- 3Mathematical and Statistical Sciences, Department of/Research Publications (Mathematical and Statistical Sciences)
-
2016-06-13
Vlastimil Kˇrivan, Mark Lewis, Barbara J. Bentz, Sharon Bewick, Suzanne M. Lenhart, Andrew Liebhold
Tree-killing bark beetles are major disturbance agents affecting coniferous forest ecosystems. The role of environmental conditions on driving beetle outbreaks is becoming increasingly important as global climatic change alters environmental factors, such as drought stress, that, in turn, govern...
-
Fall 2021
Dispersal is one of the most important life-history events facing an individual, but how and why individuals arrive at the decision to leave home is largely unknown. This decision has immediate and lifelong fitness consequences. Therefore, understanding how individuals make dispersal decisions is...
-
Characterizing the changes in host tree chemistry after cutting and revisiting the nutritional role of fungi in the novel mountain pine beetle host jack pine
DownloadFall 2018
Studies with conifer-infesting bark beetles commonly use tree bolts to evaluate the effects of host tree quality on various aspects of insect biology. Yet, whether host quality changes between live trees and bolts cut from these trees has not been assessed. Particularly, changes in concentrations...
-
Fall 2022
Canada’s forests are experiencing unprecedented pest and pathogen outbreaks; such instances are expected to increase under predicted climate change scenarios. A host’s ability to mount an effective defense response against pest and pathogen antagonists is dependent on recognition of the...
-
Factors governing outbreak dynamics in a forest intensively managed for mountain pine beetle
Download2020-05-05
Mélodie Kunegel-Lion, MarkA. Lewis
Mountain pine beetle (MPB) outbreaks have caused major economic losses and ecological consequences in North American pine forests. Ecological and environmental factors impacting MPB life-history and stands susceptibility can help with the detection of MPB infested trees and thereby, improve...
-
Influence of Semiochemical Cues on Mountain Pine Beetle Flight and Subsequent Effect of Flight on Host Colonisation Processes
DownloadFall 2019
The mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae), is an aggressive pine pest in western North America. This beetle undergoes cyclical population outbreaks, and in the most recent outbreak the beetle expanded its range to the north and east. During this range...
-
Legacy Effects of Mountain Pine Beetle Outbreak: Defense, Growth and Survival of Residual Lodgepole Pine Trees in Alberta
DownloadFall 2019
Periodic mountain pine beetle outbreaks have affected millions of hectares of lodgepole pine forests in western North America. Within these stands often some pine trees remain alive. In addition to causing direct pine mortality, outbreaks also have short- and long-term legacy effects on both...
-
Modelling Mountain Pine Beetle Population Dynamics and Management: A Case Study from the Cypress Hills
DownloadFall 2019
Outbreaks of insects are one of the main sources of disturbance in North American pine forests. The huge economic and ecological consequences of these outbreaks emphasize the need for effective pest management. For example, the mountain pine beetle (Dendroctonus ponderosae, Hopkins 1902) has...
-
Mountain pine beetle and forest harvest effects on hydrologic processes and streamflow in the Alberta Foothills
DownloadSpring 2021
The Alberta Foothills region has experienced an unprecedented mountain pine beetle (MPB) outbreak. The provincial management strategy is to contain the infestation with forest harvest. The landscape becomes a patchwork of dead (MPB grey-attack), alive, and harvested stands. MPB attack affects the...
-
Fall 2020
Dispersal by flight is a complex life history phase in many insects that is essential to gene flow and range expansion. Many elements contribute to realized dispersal, including biotic and abiotic environmental conditions, as well as intrinsic factors such as morphology, physiology and behavior....