The species richness, abundance and composition of saproxylic Coleoptera was compared between 'old-growth' and mature-managed hemlock-hardwood forests in southeastern Ontario, Canada. Beetles were sampled weekly from 29 April until 3 October 2003 using large-area flight-intercept traps (FITs) and trunk-window traps (TTs). Analyses were conducted using the Fisher's alpha and Simpson's diversity indices, rarefaction, indicator species analysis and cluster analysis. A total of 11,888 fungivorous Coleoptera was collected from 11 families and 73 species (excluding Nitidulidae). Nitidulidae were analysed separately with traps yielding 2,129 sap beetles comprising 30 species. The species richness and abundance of fungivorous Coleoptera did not differ significantly between the two forest types. Conversely, the species abundance of nitidulid beetles was higher in managed forests and the species richness higher in 'old-growth' forests. Several species were strongly associated with either managed or 'old-growth' forest types. Certain species such as Anisotoma inops (Leiodidae) and Glischrochilus sanguinolentus (Nitidulidae) were much more frequently caught in TTs than in FITs.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.81461 |
| Date | January 2004 |
| Creators | Zeran, Rebecca |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science (Department of Natural Resource Sciences.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 002175042, proquestno: AAIMR06478, Theses scanned by UMI/ProQuest. |
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