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The effects of the intensification of silvicultural practices on seed bank diversity in the boreal and northern temperate forests

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Title: The effects of the intensification of silvicultural practices on seed bank diversity in the boreal and northern temperate forests
Author: Maloles, Jose Rey
Department: Department of Integrative Biology
Program: Integrative Biology
Advisor: Newmaster, Steven
Abstract: Soil seed banks are recognized as an important mechanism for forest regeneration following disturbance. The objectives of this thesis are to establish a novel alternative method for estimating seed bank diversity through the use of DNA barcoding, and determine the effects of silvicultural intensification on soil seed bank diversity. Soil samples were collected from the Timmins and Kaspuskasing sites of the NEBIE plot network in 2012. A total of 306 plant species were compiled to construct a DNA barcode library. DNA barcoding found higher precision of species resolution over conventional seedling emergence trials. Disparity was found in the patterns of diversity within the soil seed bank at large spatial scales. Environmental factors associated with forest management were correlated with some of the variance found in seed bank diversity. This study provides direction for researchers to explore how certain management practices may affect the species diversity in the seed bank.
URI: http://hdl.handle.net/10214/8945
Date: 2015-05
Rights: Attribution-NonCommercial-NoDerivs 2.5 Canada


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Attribution-NonCommercial-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.5 Canada