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 81 - 85 of 85

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Displaying 81 - 85 of 85

Cities of the Future or a Relic of the Past? The Universality of Low-Density Urbanism Among the Ancient Maya

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Year: 2024, 2024
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Koch, Timothy Alexander Eland, Thesis advisor (ths): Haines, Helen, Thesis advisor (ths): McLellan, Alec, Degree committee member (dgc): Fitzsimons, Rodney, Degree granting institution (dgg): Trent University
Abstract: <p>Low-density urbanism is ubiquitous in the industrialized world, with suburbs and sprawling urban zones like the American Northeastern Seaboard being classified as such. Due to
outsized environmental impacts and perceived unsustainability, this settlement pattern is often
maligned. As one of the few prominent examples of agrarian-based low-density urbanism, the
ancient Maya can provide… more

Accuracy and reliability of microscopic characteristics to identify Typha species and their hybrids

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Year: 2024, 2024
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Kowalczyk, Olivia Samantha, Thesis advisor (ths): Freeland, Joanna, Thesis advisor (ths): Dorken, Marcel, Degree committee member (dgc): Bowman, Jeff, Degree granting institution (dgg): Trent University
Abstract: <p>Advanced generation/backcrossed (non-F1) hybrids can be challenging to identify when their traits are similar to those of parental taxa, F1 hybrids, or both. This is particularly evident in the North American hybrid zone involving Typha latifolia, T. angustifolia, F1 T. × glauca and non-F1 hybrids. Cattails are challenging to differentiate based on gross morphological characteristics.… more

Short-Term Impacts of Agricultural Land Use Change on Soil Health and Nitrogen Cycling Microbial Communities

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Year: 2024, 2024
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Kularathne, Ridmani Hansika, Thesis advisor (ths): Thompson, Karen, Degree committee member (dgc): Eimers, Catherine, Degree committee member (dgc): Power, Ian, Degree granting institution (dgg): Trent University
Abstract: <p>Glyphosate burndown and tillage, followed by the cultivation of cash crops, are frequently used techniques in LUC from perennial cropping systems (PS) to annual cropping systems (AS). Agricultural LUC can result in the loss of soil nitrogen (N) via emission of nitrous oxide (N2O), a potent greenhouse gas (GHG). The purpose of this thesis is to investigate the short-term impacts of… more

Nutrient dynamics and stoichiometry in stormwater management ponds

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Year: 2024, 2024
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Lamond, Marisha, Thesis advisor (ths): Xenopoulos, Marguerite A., Degree committee member (dgc): Frost, Paul C., Degree committee member (dgc): Eimers, M. Catherine, Degree granting institution (dgg): Trent University
Abstract: <p>Although stormwater management ponds (SWMPs) are frequently used to mitigate flooding in urban areas, we still do not fully understand how these systems impact water quality in a watershed. Currently, most research focuses on the effectiveness of SWMPs to retain nutrients during high flows, even though there is potential for internal nutrient releases to occur in these systems during low… more

Impacts of embryo incubation temperature on ontogenic thermal tolerance of brook trout (Salvelinus fontinalis)

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Year: 2024, 2024
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Lechner, Emily Rebekka, Thesis advisor (ths): Raby, Graham D, Thesis advisor (ths): Wilson, Chris C, Degree committee member (dgc): Kapron, Carolyn, Degree granting institution (dgg): Trent University
Abstract: <p>I investigated the climate vulnerability of a cold-water salmonid by observing the upper thermal tolerance of brook trout (Salvelinus fontinalis) across multiple life stages. Using hatchery- and wild-ancestry fish, I assessed variation in thermal tolerances and carryover effects within and among brook trout life stages and populations that were reared under varying winter thermal regimes… more