Trent University Graduate Thesis Collection

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    Copyright for all items in the Trent University Graduate Thesis Collection is held by the author, with all rights reserved, unless otherwise noted.
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    Thirty Years of Local Semipalmated Plover (Charadrius semipalmatus) Population Dynamics in Churchill, Manitoba, Canada: A Long-Term Study on Factors Influencing the Rate of Population Change Over Time

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Brown, Andrew, Thesis advisor (ths): Nol, Erica, Degree committee member (dgc): Davy, Christina, Degree committee member (dgc): Catlin, Daniel, Degree granting institution (dgg): Trent University
    Abstract: <p>I used 31 years of Semipalmated Plover (Charadrius semipalmatus) population data to assess the effects of vital rates on a local breeding population of plovers in Churchill, Manitoba, Canada. I used three similar Bayesian Integrated Population Models (IPMs), with the last a coupled IPM population viability analysis (PVA) approach to predict the impact of changing spring temperatures on… more

    Remote Camera-traps as a Management Tool: Estimating Abundance and Landscape Effects on the Density of White-tailed Deer

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Bullington, Grace A, Thesis advisor (ths): Patterson, Brent R, Thesis advisor (ths): Northrup, Joseph M, Degree granting institution (dgg): Trent University
    Abstract: <p>Quantifying the impacts of environmental conditions on the abundance of wildlife populations is important for making informed management decisions in the face of increasing environmental threats. Managers require robust tools to estimate abundance and density of wildlife rapidly and with precision. Within the context of studying white-tailed deer, I evaluated the use of camera-traps and… more

    Dietary fatty acid content changes the long-term acclimation response of a captive bird (Taeniopygia guttata) to ambient temperatures

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Campbell, Michael John, Thesis advisor (ths): Mastromonaco, Gabriela F, Thesis advisor (ths): Burness, Gary, Degree committee member (dgc): McClelland, Grant B, Degree granting institution (dgg): Trent University
    Abstract: <p>Due to climate change and managed care, birds may face interacting effects of novel diets and environmental temperatures. I examined how captive zebra finches (Taeniopygia guttata) responded to a 6-month acclimation to either thermoneutral or cool temperatures when provided with saturated or unsaturated fatty acid enriched diets. Body mass was lower on the unsaturated fatty acid diet,… more

    Models of Charged Domain Walls

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Carroll, Carson, Thesis advisor (ths): Atkinson, Bill, Degree granting institution (dgg): Trent University
    Abstract: <p>There is a `universal' picture of a charged domain wall (CDW) in theoretical work, often depicted as residing in an infinite thickness film, charge neutral, and with no bias voltage applied. However, in experiment CDWs are shown with none of these assumptions. CDWs are produced in thin or ultra-thin films, the CDW is not charge neutral, and a bias voltage is being applied. We look… more

    Evaluating the Relationships Between Land Use and Stream Nutrient and Chloride Concentrations Across Southern Ontario

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Chan, Roshelle, Thesis advisor (ths): Eimers, Catherine, Thesis advisor (ths): Thompson, Karen, Degree committee member (dgc): Arhonditsis, George, Degree granting institution (dgg): Trent University
    Abstract: <p>Agricultural and urban land uses have been linked to the recent resurgence of eutrophication and salinization issues in the lower Great Lakes. This thesis examined the relationship between watershed land use and stream nitrate-nitrogen (NO3-N), total phosphorus (TP), and chloride (Cl) concentrations across southern Ontario. Using a self-organizing map analysis, the watersheds were… more

    Registered Nurses' Intention to Stay Working in Ontario Rural Hospitals

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Coady, Ashley, Thesis advisor (ths): Hallaran, Amy, Degree committee member (dgc): Edge, Dana, Degree committee member (dgc): Thibeault, Catherine, Degree granting institution (dgg): Trent University
    Abstract: <p>The significance of nursing retention in today's healthcare system is more prominent than ever before. The purpose of this study was to answer the question: What do Registered Nurses understand about their intention to stay at Ontario rural hospitals? A qualitative descriptive phenomenological approach was used to conduct this study. Ten Registered Nurses from rural hospitals were… more

    Biogeochemical Responses to a Non-Industrial Wood Ash Addition in a South-Central Ontario Forest

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Conquer, Shelby M., Thesis advisor (ths): Watmough, Shaun A., Degree committee member (dgc): Yan, Norman D., Degree committee member (dgc): Eimers, M. Catherine, Degree granting institution (dgg): Trent University
    Abstract: <p>Recovery of forest soils from chronic acidification can be enhanced with the use of non-industrial wood ash (NIWA). Non-industrial wood ash is alkaline and contains high concentrations of macronutrients, but trace metal concentrations must be evaluated to limit risk of metal toxicity following application. Additionally, understanding how different forest ecosystem components respond to… more

    Genes respond in a dose dependent manner to nutritional stress in the freshwater zooplankter, Daphnia pulex

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Dlugosz, Anna Patrycja, Thesis advisor (ths): Frost, Paul, Degree granting institution (dgg): Trent University
    Abstract: <p>We studied the physiological and molecular responses of lab-grown Daphnia pulex to shifts in dietary (carbon, nitrogen, phosphorus, and cyanobacteria) and growth media (calcium) nutrient supply using a set of potential biomarkers via qPCR. Each examined nutrient had a strong effect on Daphnia mass-specific growth rate, and we found significant dose-dependent effects of treatment level (… more

    The Impact of Sexual Health Education on Sexual Communication and Consent Negotiation

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Fernandes, Eva Ines, Thesis advisor (ths): Humphreys, Terry P, Degree committee member (dgc): Blair, Karen L, Degree committee member (dgc): McKay, Alexander, Degree granting institution (dgg): Trent University
    Abstract: <p>Sexual health education (SHE), specifically formal SHE, can play a key role in offering individuals the necessary information, motivation, and skills needed to maintain and improve their sexual health. This study used a survey-based approach to explore the relationship between Canadians' (N = 675) perceived quality of SHE and their feelings and behaviours related to sexual consent… more

    Does Mind-Mindedness Matter? Understand the Connection Between Parenting Styles and Preschoolers' Internalizing and Externalizing Behavior Problems from a Cultural Lens

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Fu, Yuke, Thesis advisor (ths): Liu, Mowei, Degree committee member (dgc): Michael, Chan-Reynolds G, Degree committee member (dgc): Quan, Jeffry, Degree granting institution (dgg): Trent University
    Abstract: <p>Despite the extensive application of Baumrind's parenting style typology, some argue that it may not adequately capture the implicit warmth Chinese parents embrace. This study attempted to examine whether mind-mindedness could be a key indicator for helping children understand the benevolent intentions behind their mothers' authoritarian parenting practices. Specifically, this… more

    Using Interpretive Description to Explore How Participation in a Clinical Externship Influences the Transition to Practice of Newly Graduate Nurses

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Hembrey, Jessi, Thesis advisor (ths): Hallaran, Amy, Degree committee member (dgc): Woodend, Kirsten, Degree committee member (dgc): Kasey, Cathy, Degree granting institution (dgg): Trent University
    Abstract: <p>The transition from student to newly graduated nurse (NGN) can be a period filled with significant stress and uncertainty as NGNs are required to develop and refine practical skills, learn to work with interdisciplinary team members, and adjust to their new professional identity. Clinical externships provide students an opportunity to work alongside nurses as unregulated healthcare… more

    Rapid Assays to Test for Flavohemoglobin Inhibitors

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Henao, Elias, Thesis advisor (ths): Rafferty, Steven, Degree committee member (dgc): Brunetti, Craig, Degree committee member (dgc): Martic, Sanela, Degree granting institution (dgg): Trent University
    Abstract: <p>Giardia intestinalis is a parasitic protozoan that possesses a flavohemoglobin (gFlHb), an enzyme that plays a role in the detoxification of reactive nitrogen species (RNS) and reactive oxygen species (ROS) via its nitric oxide dioxygenase (NOD) activity as well as its NADH-oxidase activity. This enzyme is a potential target for imidazole-based antigiardial drugs that act as ligands of… more

    The Interrelationships Between Sexual Agency, Sexual Consent Communication, Sexual Motivations, and Positive Sexual Evaluations

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Hébert, Kalyca-Lyn L., Thesis advisor (ths): Humphreys, Terry, Degree committee member (dgc): Navara, Geoff, Degree committee member (dgc): Milhausen, Robin, Degree granting institution (dgg): Trent University
    Abstract: <p>Sexual agency is receiving more attention in sexuality research though its contribution to sexual well-being has yet to be determined. Sexual agency has been theorized as an overarching concept comprised of both internal and external components. Both feelings and behaviours in the sexual domain can be impacted by prevalent culturally prescribed sexual scripts. The present study assessed… more

    Effects of tile drainage, seasonality, and cash crop rotation on edge-of-field nitrogen and phosphorus losses from southern Ontario Watersheds

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): McNeill, Laura Mary, Thesis advisor (ths): Eimers, Catherine, Degree committee member (dgc): Watmough, Shaun, Degree committee member (dgc): Thompson, Karen, Degree granting institution (dgg): Trent University
    Abstract: <p>Eutrophication is an ongoing global problem and agriculture is an important non-point source of nutrient loading. Specifically, nitrogen (N) and phosphorus (P) losses from agricultural landscapes continue to drive water quality issues. In southern Ontario, agriculture has intensified in recent decades, with major expansions of cash crop production and extensive tile drainage (TD).… more

    Impacts of invasive hybrid cattail Typha x glauca and reduced marsh interspersion on muskrats (Ondatra zibethicus) in North America

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Melvin, Gregory Paul, Thesis advisor (ths): Bowman, Jeff, Degree committee member (dgc): Freeland, Joanna, Degree committee member (dgc): Metcalfe, Robert, Degree granting institution (dgg): Trent University
    Abstract: <p>Muskrat populations are declining across North America. In recent decades, hybrid cattail Typha x glauca has been invading wetlands in North America. This invasion is degrading wetland habitat, leading to reduced interspersion of water and vegetation. Muskrats are wetland-obligates and their populations are positively linked to marsh interspersion. Therefore, muskrat populations may be… more

    Genomic Signatures of Speciation in Sympatric Flying Squirrels

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Menelon, Laurelie, Thesis advisor (ths): Bowman, Jeff, Thesis advisor (ths): Wilson, Paul, Degree committee member (dgc): Shafer, Aaron, Degree granting institution (dgg): Trent University
    Abstract: <p>Hybridization contributes to the genetic diversity and can impact speciation. This study investigates the genetic evidence of recent hybridization under climate change in sympatric populations of northern and southern flying squirrels in Ontario. Using low-coverage whole-genome sequences, my research examines the existing population structure and measures the genomic variation of the… more

    Summer Movement Ecology of Showshoe Hares (Lepus americanus) during a Population Cycle

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Miller, Hannah, Thesis advisor (ths): Murray, Dennis L, Degree committee member (dgc): Schaefer, Jim, Degree committee member (dgc): Burness, Gary, Degree committee member (dgc): Raby, Graham, Degree granting institution (dgg): Trent University
    Abstract: <p>I tracked summer movements and activity of snowshoe hares (Lepus americanus) in southwestern Yukon, Canada, during their population cycle (2015–2022) to assess the primary drivers of movement. Hares exhibited variable movement and activity during the cycle, exhibiting increased home range size and higher daily displacement during low population densities. Males exhibited more dramatic… more

    The search for myco-hormones in the metabolome of the model organism Sordaria macrospora via LC-MS/MS.

    Year: 2024, 2024
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Molina Bean, Kimberly, Thesis advisor (ths): Emery, Neil, Degree committee member (dgc): Kisiala, Anna, Degree committee member (dgc): Morrison, Erin, Degree granting institution (dgg): Trent University
    Abstract: <p>Fungi are a diverse group of organisms that play crucial roles in various ecological processes and have immense economic importance. Understanding the intricate mechanisms underlying fungal growth and development is fundamental to harnessing their potential and exploring their applications in different fields. Signalling molecules, such as hormones, have been identified as key regulators… more