Interactions between the invasive brown spruce longhorn beetle, Tetropium fuscum (Fabricius) (Coleoptera: Cerambycidae), and its native congener, Tetropium cinnamopterum (Kirby)

dc.contributor.advisorHeard, Stephen
dc.contributor.advisorPureswaran, Deepa
dc.contributor.authorDearborn, Kenneth William
dc.date.accessioned2023-03-01T16:35:29Z
dc.date.available2023-03-01T16:35:29Z
dc.date.issued2016
dc.date.updated2016-05-04T00:00:00Z
dc.description.abstractTetropium fuscum (TF) (Coletopetra: Cerambycidae) is a European spruce borer established in Nova Scotia since at least 1990. I tested whether TF displaces a native congener, T. cinnamopterum (TC), in red spruce. Stressed trees, 24 girdled and 24 felled, were selected for natural colonization: 28 inside the invaded zone and 20 outside. Both Tetropium species and their parasitoid wasps emerged exclusively from felled trees. Combined Tetropium density (inside invaded zone = 0.34 ± 0.07 vs. outside = 0.63 ± 0.19 per m2; P = 0.070) and overall parasitism rates (inside invaded zone = 31% vs. outside = 44%; P = 0.111) did not statistically differ inside vs. outside the invasion zone, but TC density was significantly greater outside the invasion zone (0.63 ± 0.19 compared to 0.18 ± 0.05 m2; P = 0.001), suggesting TF may displace TC where they are sympatric.
dc.description.copyright© Kenneth William Dearborn 2016
dc.formattext/xml
dc.format.extentv, 65 pages
dc.format.mediumelectronic
dc.identifier.urihttps://unbscholar.lib.unb.ca/handle/1882/14164
dc.language.isoen_CA
dc.publisherUniversity of New Brunswick
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.subject.disciplineBiology
dc.titleInteractions between the invasive brown spruce longhorn beetle, Tetropium fuscum (Fabricius) (Coleoptera: Cerambycidae), and its native congener, Tetropium cinnamopterum (Kirby)
dc.typemaster thesis
thesis.degree.disciplineBiology
thesis.degree.fullnameMaster of Science
thesis.degree.grantorUniversity of New Brunswick
thesis.degree.levelmasters
thesis.degree.nameM.Sc.

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