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Permanent link (DOI): https://doi.org/10.7939/R31Q0D

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Overstory and understory dynamics of whitebark pine (Pinus albicaulis) ecosystems of northwestern British Columbia Open Access

Descriptions

Other title
Subject/Keyword
Whitebark pine (Pinus albicaulis)
Ecosystem change
Community ecology
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Clason, Alana
Supervisor and department
Macdonald, Ellen (Renewable Resources)
Examining committee member and department
Hamann, Andreas (Renewable Resources)
Hik, David (Biological Sciences)
Haeussler, Sybille (Ecosystem Science and Management Program, University of Northern British Columbia)
Department
Department of Renewable Resources
Specialization

Date accepted
2010-09-30T21:59:43Z
Graduation date
2010-11
Degree
Master of Science
Degree level
Master's
Abstract
Whitebark pine (Pinus albicaulis) is declining across its range due to disturbances such as mountain pine beetle and white pine blister rust. In this thesis, I assess the response and vulnerability of whitebark pine ecosystems to multiple stressors and disturbances at the northern edge of P.albicaulis’ range in the Coastal Mountains of British Columbia, Canada. Both the compositional change over time of overstory and understory communities as well as vegetation spatial patterns suggest that different sites or ecosystem types housing whitebark pine may differ in their response to disturbance and stress. Surveys conducted ~ 20 years apart indicate that overstory community change differed between site types following the decline of P. albicaulis over time, while the understory did not change significantly. The spatial pattern of overstory species and understory communities also indicates that site type may be important in determining forest change under ongoing disturbance to whitebark pine.
Language
English
DOI
doi:10.7939/R31Q0D
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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File format: pdf (Portable Document Format)
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File size: 10077854
Last modified: 2015:10:12 13:14:04-06:00
Filename: Clason_Alana_Fall 2010.pdf
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Status message: File header gives version as 1.4, but catalog dictionary gives version as 1.3
File title: Prefatory pages
File author: Alana Clason
Page count: 128
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