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Evolving symbioses between insects and fungi that kill trees in Canada: New threats associated with invasive organisms

  • Author(s) / Creator(s)
  • Symbiotic relationships between insects and fungi are known to cause tree mortality
    either through direct damage by larval feeding that can be facilitated by symbiotic fungi, or through
    insects vectoring pathogens directly to healthy trees. Within their native ranges, the impacts of many
    insect-fungus symbioses are restricted to weakened and declining trees; however, within the last
    century tree mortality caused by globally invasive insect–fungus associations has had a devastating
    impact on trees in both urban and natural forest ecosystems. Unfortunately, Canadian forests have been
    seriously affected by invasive organisms and an emerging threat is the expansion of a native bark beetle
    into the boreal forest of Alberta. This paper reviews the symbiotic relationships between selected
    invasive insects and pathogens that cause tree mortality within the urban and forested landscapes of
    Canada; it uses these case studies to illustrate potentially damaging new evolutionary trajectories.

  • Date created
    2016-01-01
  • Subjects / Keywords
  • Type of Item
    Article (Draft / Submitted)
  • DOI
    https://doi.org/10.7939/r3-z072-gb30
  • License
    Attribution-NonCommercial 4.0 International
  • Language
  • Citation for previous publication
    • Ramsfield, T. (2016). Evolving symbioses between insects and fungi that kill trees in Canada: New threats associated with invasive organisms. The Canadian Entomologist, 148(S1), S160-S169. https://doi.org/10.4039/tce.2015.65