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dc.contributor.supervisor Kenkel, Norman (Biological Sciences) en_US
dc.contributor.author Levac, Joshua
dc.date.accessioned 2012-04-03T13:41:13Z
dc.date.available 2012-04-03T13:41:13Z
dc.date.issued 2012-04-03
dc.identifier.uri http://hdl.handle.net/1993/5234
dc.description.abstract To understand the temporal dynamics of a forest, long-term direct observations are required. My study examined the long-term persistence of trembling aspen (Populus tremuloides Michx) and white spruce (Picea glauca (Moench) Voss) in the boreal mixed-wood forests of Riding Mountain National Park. A set of 266, disturbance-free, permanent sample plots were established in 1947 (stand age = 120 years) and followed through time for 55 years. My results indicate that although the density and basal areas of aspen do decline over the 55-year period, a successful regeneration and establishment occurs around 140 years. The long-term persistence of aspen is a result of clonal reproduction following the canopy breakup beginning around 130 years or earlier. This implies that the long-term persistence of both aspen and spruce occur and the expected succession to softwood dominance does not occur. en_US
dc.subject forest ecology en_US
dc.subject succession en_US
dc.subject long-term en_US
dc.subject persistence en_US
dc.subject boreal mixed-woods en_US
dc.subject trembling aspen en_US
dc.subject white spruce en_US
dc.title Long-term stand dynamics of the boreal mixed-wood forests of west-central Manitoba en_US
dc.degree.discipline Biological Sciences en_US
dc.contributor.examiningcommittee Ford, Bruce (Biological Sciences) Walker, David (Environment and Geography) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note May 2012 en_US


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