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Physiological, ecological and environmental factors that predispose trees, stands and landscapes to infestation by tree-killing Dendroctonus beetles

Dates

Year
2013

Citation

Goodsman, Devin William, 2013, Physiological, ecological and environmental factors that predispose trees, stands and landscapes to infestation by tree-killing Dendroctonus beetles: University of Alberta (Canada).

Summary

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 of lodgepole pines (Pinus contorta var. latifolia ) impacts the fungal symbionts of the mountain pine beetle (D. ponderosae Hopkins). I found that, during the growing season, carbohydrates were less available in the lower stems of pines than in their upper stems. After inoculation with a fungal symbiont of the mountain pine beetle however, trees mobilized carbohydrates to lesion fronts regardless of inoculation height along the stem. Interestingly, [...]

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Type
End Note
Reference Item
3397 record import test
Reference File
NWBLCC-20160406.xml

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