Trent University Graduate Thesis Collection

Item Description
Identifier
tula:etd
Type
Collection
Language
eng
Extent
1 item
Rights
Copyright for all items in the Trent University Graduate Thesis Collection is held by the author, with all rights reserved, unless otherwise noted.
Displaying 1 - 5 of 5

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Displaying 1 - 5 of 5

Geochemistry and Toxicity of a Large Slag Pile and its Drainage Complex in Sudbury, Ontario

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Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Souter, Laura Elizabeth, Thesis advisor (ths): Watmough, Shaun, Degree committee member (dgc): Hutchinson, Tom, Degree committee member (dgc): Sager, Eric, Degree granting institution (dgg): Trent University
Abstract: <p>This study was designed to determine the geochemistry and potential toxicity of water draining a large slag pile in Sudbury, Ontario, which runs through a pond complex prior to entering Alice Lake. Slag leaching experiments confirmed slag is a source of sulphate, heavy metals (including Fe, Al, Ni, Co, Cu, Zn, Pb, Cr, Mn) and base cations (Ca, K, Mg, Na). Concentrations of most metals… more

Exploring reproduction in wild blue lupine (Lupinus perennis) in comparison to L. polyphyllus and L. albus

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Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Francis, Heathyr E., Thesis advisor (ths): Emery, Neil R.J., Degree committee member (dgc): Sager, Eric, Degree committee member (dgc): Dorkin, Marcel, Degree granting institution (dgg): Trent University
Abstract: <p>Wild lupine (Lupinus perennis) restoration efforts seek to increase and connect populations, using seeds, to facilitate the recovery of endangered butterflys in Ontario. This study observed plant growth and phytohormone levels of L. albus, L. polyphyllus, and L. perennis through stages of seed development, each with varying strategies in growth and reproductive investment. L. polyphyllus… more

The effects of in-stream woody debris from selective timber harvest on nutrient pools and dynamics within Precambrian Shield streams

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Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Jamieson, Tyler Jacob Ross, Thesis advisor (ths): Watmough, Shaun, Thesis advisor (ths): Eimers, Catherine, Degree committee member (dgc): Sager, Eric, Degree granting institution (dgg): Trent University
Abstract: <p>Timber harvest can influence the rate of transfer of organic matter from the terrestrial catchment to streams, which may have both direct and indirect effects on in-stream nutrient pools and dynamics. In the interest of developing sustainable forestry practices, the continued study of the effects of forestry on nutrient dynamics in aquatic systems is paramount, particularly in sensitive… more

The impact of selection harvesting on soil properties and understory vegetation in canopy gaps and skid roads in central Ontario

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Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Treasure, Theresa T., Thesis advisor (ths): Eimers, Catherine, Thesis advisor (ths): Watmough, Shaun, Degree committee member (dgc): Sager, Eric, Degree granting institution (dgg): Trent University
Abstract: <p>Tree harvesting alters nutrient cycling and removes nutrients held in biomass, and as a result nutrient availability may be reduced, particularly in naturally oligotrophic ecosystems. Selection harvesting is a silvicultural technique limited to tolerant hardwood forests where individual or small groups of trees are removed creating a "gap" in the forest canopy. In order for… more

The Biology and Management of Stratiotes Aloides in the Trent River, Ontario

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Year: 2017, 2017
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Canning, Robert, Thesis advisor (ths): Sager, Eric, Degree committee member (dgc): Whillans, Tom, Degree committee member (dgc): Freeland, Joanna, Degree granting institution (dgg): Trent University
Abstract: <p>Invasive aquatic plants can create negative ecological, economic and social impacts when they displace local vegetation, interfere with shipping and navigation and inhibit water-based recreational activities. In 2008, the first North American occurrence of the invasive plant Stratiotes aloides (Water soldier) was identified in the Trent River, Ontario. This research measured offset… more