Logging slash constitues an environment supporting a particular association ot insacts and other arthropods. Initially, the species of insects in the community are governed by the character of the slash, that is, the tree species, thickness of bark, and size of tops. The condition of the slaah changes with the passage of time, the rate of change being directly affected by bark beetles and wood borers which initiate the ingress of wood-destroying fungi. As the environment changes, those species, for which the habitat is no longer suitable, drop out, leaving in the association of animals only those which can exist under the new conditions. The succession of communities of animals inhabiting slash, logs, dying and dead trees has been shown by Adams (1915) and Savely (1939) to continue until the wood has disintegrated completely. The community of insects and other arthropods invading red and white pine logging slash during the first summer following winter logging has been examined during this study. One object of the study was to determine the importance of the development of broods of various species of bark beetles in the subsequent establishment of other arthropods in the community. Wherever possible, from original observations or from works of other authors, the role of each species in the particular environment has been indicatad. Seasonal history notes have been prepared tor each species of bark beetle found in the slash.[...]
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.123845 |
| Date | January 1952 |
| Creators | Thomas, James Boyd. |
| Contributors | DuPorte, E. (Supervisor) |
| 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 Entomology.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000597906, Theses scanned by McGill Library. |
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