Lakehead University Library Logo
    • Login
    View Item 
    •   Knowledge Commons
    • Electronic Theses and Dissertations
    • Undergraduate theses
    • View Item
    •   Knowledge Commons
    • Electronic Theses and Dissertations
    • Undergraduate theses
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.
    quick search

    Browse

    All of Knowledge CommonsCommunities & CollectionsBy Issue DateAuthorTitleSubjectDisciplineAdvisorCommittee MemberThis CollectionBy Issue DateAuthorTitleSubjectDisciplineAdvisorCommittee Member

    My Account

    Login

    Statistics

    View Usage Statistics

    Invasive plant cover and density following emerald ash borer-induced mortality in southern Ontario forests

    Thumbnail

    View/Open

    KratkyM2022b-1a.pdf (2.251Mb)

    Date

    2022

    Author

    Kratky, Michelle

    Degree

    Honours Bachelor of Science in Forestry

    Discipline

    Natural Resources Management

    Subject

    Ash (Fraxinus spp.)
    Common buckthorn (Rhamnus cathartica)
    Emerald ash borer (Agrilus planipennis)
    Glossy buckthorn (Frangula alnus)
    Invasive species

    Metadata

    Show full item record

    Abstract

    The emerald ash borer has caused widespread ash mortality in eastern North American forests, where forest managers are also facing challenges due to invasions of undesirable exotic plant species. This study aims to explore relationships between the two phenomena based on existing evidence that disturbance caused by insect pests may facilitate invasive plant colonization. The presence of invasive species was analyzed in the context of ash mortality following emerald ash borer infestation in four forests in the Region of Waterloo in Ontario. Multivariate analysis with generalized linear models was used to detect relationships between invasive plants and various environmental variables. Significant relationships with invasive plant cover and density are found for decline in ash basal area, ash mortality occurrence, change in total basal area, current basal area, canopy closure, regeneration density, and tree species composition. Potential effects of competitive exclusion and site richness on invasive plant species are discussed.

    URI

    https://knowledgecommons.lakeheadu.ca/handle/2453/4921

    Collections

    • Undergraduate theses

    Lakehead University Library
    Contact Us | Send Feedback

     


    Lakehead University Library
    Contact Us | Send Feedback