Graduate Theses & Dissertations

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Composition and Transformation of Dissolved Organic Matter in Hudson Bay, Canada
The Hudson Bay region is a sensitive environment, where anthropogenic (e.g., dams, diversions, and/or reservoirs) impacts have increased in recent decades, potentially influencing the functioning of the ecosystem. Dissolved organic matter (DOM) entering Hudson Bay comes from both terrestrial (allochthonous) and aquatic (autochthonous) sources. The chemical composition of DOM is important, as it controls carbon biogeochemistry, nutrient cycling, and heat exchange. In rivers, estuaries, and oceans, photochemical processes and microbial degradation play a significant role in the chemical composition of DOM. Yet, our knowledge is scarce into how photochemical and microbial processes effect DOM composition specifically in Arctic aquatic systems making it difficult to predict how the carbon cycle will respond to a changing environment. This Ph.D. thesis addresses: (1) the composition of photochemically altered autochthonous and allochthonous DOM; (2) the photochemical transformations of DOM in surface waters of Hudson Bay; and (3) the microbial transformations of DOM in Hudson Bay surface waters. Using multiple analytical techniques, this work demonstrated that photochemical and microbial effects were different for light absorbing DOM compounds and ionisable DOM analyzed by Fourier transform-ion cyclotron-resonance-mass spectrometry (FT-ICR-MS). Based on FT-ICR-MS analysis, microbial processes had a greater impact on the molecular composition of allochthonous DOM originating from riverine sources and estuary whereas photochemical processes were the dominant mechanism for degradation of autochthonous DOM in Hudson Bay. Photochemical processes significantly decreased colored dissolved organic matter (CDOM) and fluorescence dissolved organic matter (FDOM) loss whereas microbial degradation was minimal in Hudson Bay river, estuary, and coastal waters. The results of this thesis highlight the importance of photochemical and microbial alteration of DOM in Arctic regions, two processes that are expected to be enhanced under climate change conditions. Author Keywords: Carbon cycle, Field flow fractionation, Microbial transformation, Optical properties, Photochemical degradation
Why fish when you could farm? A stable isotope analysis of changing diet and ritual killing in the Virú Valley, Peru
Stable carbon and nitrogen isotope analyses were performed on individuals from the Virú Valley, Peru to better understand the people and society in this region of early-state development. This analysis also sheds light on the lives of individuals from a ritual killing event at Huaca Santa Clara. Bone collagen stable isotope analysis revealed that all individuals had diets predominantly based on terrestrial resources, while incremental hair segments, skin, tendon, and nails revealed that marine resources made small, non-seasonal contributions to the diet. The prioritization of farming over fishing in the Virú Valley may be indicative of the economic specialization of agricultural and marine subsistence practices by distinct communities and the tendency of state-level societies to monopolize agricultural resources. The isotopic compositions of the individuals from the Huaca Santa Clara ritual killing event showed no evidence of a controlled diet before their death and identified a likely migrant to Virú. Author Keywords: Diet, Early Intermediate Period, Early-State Development, North Coast Peru, Ritual Killing Event, Stable Isotope Analysis
Untitled (dissertation 4.2)
Untitled (dissertation 4.2) offers a performative take on the political implications of digital archives. I argue that technological developments and their increasing ubiquity has not resulted in more reliable archives; it has facilitated the exacerbation of what Jacques Derrida calls mal d’archive—or archive fever—which refers to the institutionally supported passion to preserve that is perpetually threatened by the inevitably of loss. A performative perspective, specifically derived from the work of contemporary performance theorists and artists, affords a contemporary archival practice that not only accepts, but is informed by mal d’archive because it shifts the focus from what is preserved to how it has become and continues to be preservable through archival acts. This is important in our contemporary moment because the ubiquity of digital technologies has exacerbated the symptoms of mal d’archive: a rapid increase in both the formal and informal production of preservable content, and consequently, as Derrida reminds us, archival violence. Untitled (dissertation 4.2) also includes a performative engagement with mal d’archive through two interludes. The first interlude features what I am calling “glitch-utterances,” which refers to the visual representations of technological mishaps. The documents in the second interlude—an iteration of the exhibition catalogue that resulted from my 2020 artist residency at the Art Gallery of Peterborough—engage with the productive function of the archive because they performatively constitute the exhibition as having happened regardless of whether or not it actually occurred, which, significantly, it did not. I conclude Untitled (dissertation 4.2) with a look at the ecological impact of digital archives—perhaps an “ecological fever.” It is not my intention to offer a solution for this “ecological fever,” nor address its full impact. My aim is to conclude this dissertation with a supplement of sorts: a look at the ecological impact of digital archives because I feel it is irresponsible not to given their increasing ubiquity. With this in mind, the glitch-utterances featured in both interludes can perform an important role in calling attention to the technological materialities and computational processes that are rendered invisible by Big Tech companies via metaphors—the ethereal Cloud metaphor, for example. These glitch-utterances point to the very material substrates that support the virtual, and can thus act as an important reminder of the ecological consequences of digital archives, which, like archival practices, are tied to institutional agendas. Author Keywords: Archive , Curation , Digital Archive, Documentation, Multimedia performance, Performativity
Rendering New Insights
The Upper Paleolithic sequence at Vale Boi, Portugal, represents an early example of resource intensification, for which evidence of both diet diversification and intensified utilization of faunal remains has been published. The current research project tests the hypothesis that bone grease rendering was occurring throughout the Upper Paleolithic sequence at Vale Boi. As there are various issues of equifinality which makes the identification of bone grease rendering challenging, data from experimental bone grease rendering studies were utilized. The resulting analysis demonstrated limited evidence in support of a sustained use of bone grease rendering during the Upper Paleolithic sequence. However, evidence suggested that alternate bone processing activities and discard behaviours may have been occurring at the site. This suggests that the dietary behaviours of the foragers at Vale Boi were more varied than previously hypothesized. Author Keywords: Archaeozoology, Bone Grease Rendering, Faunal Analysis, Iberia, Resource Intensification, Upper Paleolithic
“Has anybody got my back?”
Drawing on pedagogies of care, queer pedagogy and Foucault’s concept of biopower, this critical narrative study of six women teachers at an Ontario school uses interview data to explore how teaching affects women’s bodies. Findings include the dominance of men in schools; the high rate of violence against teachers committed by students; participants’ unwillingness to show bodily discomfort to students; and the profound effect of motherhood on teaching practice. I call on educators and school administrators to embed care of students’ and teachers’ bodies into the practices of schooling. I also propose that instead of erasing teacher corporeality from classrooms, we allow students to care for teachers’ bodies as part of a healthy, reciprocal caring relationship, developing students’ and sustaining teachers’ capacity to care. Given the underrepresentation of women’s voices speaking about violence against teachers, this thesis is also a repository for women’s narrated stories of assault in Ontario schools. Author Keywords: biopedagogies, body, care, narrative inquiry, pedagogy, teacher
Biogeography of Carabidae (Coleoptera) in the Boreal forest
Basic biogeographic information is lacking for many species, such as where species are found, and how they dispersed there. Using ground beetles collected during 2008-2015 from across northern Ontario and Akimiski Island, Nunavut, I present new information on ground beetle distribution in this eastern Nearctic boreal forest, including 2 first Canadian records, 9 first provincial and 48 first territorial records, as well as 74 new records that extend the known range of many large and common ground beetles several hundred kilometres. I used these distributions to redress the knowledge gap that includes fundamental distribution data, i.e. the Wallacean shortfall, and to inform later chapters in my thesis.In Chapter 3, I examine the range expansion pattern of Carabus granulatus, a non-native species, as it spread across northeastern North America and I provide a new range record. Northern Ontario is already under threat from non-native species entering the region and it is important to conduct studies in the region before more disturbance associated with development occurs. In Chapter 4, I examine the hypothesis that northern Ontario effectively acts as a climate plateau for poikilotherms, using the predictions from Bergmann's rule as my metric. The body length of ground beetles does not appear to change over the small temperature gradient that exists across northern Ontario latitudes, supporting the climate plateau hypothesis. In Chapter 5, I test hypotheses about dispersal mechanisms that contributed to post glacial re-establishment of ground beetles using predictions of geographic distribution patterns as metrics. I found that ground beetles were likely carried downstream by rivers which aided their dispersal northward from southern refugia. I infer from the current geographic distributions that flightless ground beetle species are still expanding their range in this boreal region. Finally, I argue that there is an urgent need for more basic research on species distributions while it is still possible in regions like northern Ontario, before increased industrial and agricultural development, and expanding resource extraction projects obliterate evidence of historic ecological processes. Author Keywords: Boreal forest, Carabidae, Coleoptera, Passive dispersal, Post-glacial distribution, Range extension
Olives in the Mountains
Olives have been grown in the Mediterranean region for millennia and have been a staple crop in many of its cultures. This was never more true than during the Hellenistic (323 – 133 BC) and Roman (133 BC – AD 450) periods in the Mediterranean. This thesis examines the territory of the Roman city of Sagalassos in the region of Pisidia, modern province of Burdur, and determines if olives could have been cultivated in the territory. While there have been studies that state olives were cultivated in the territory during the Hellenistic and Roman periods, modern farmers as well as agronomic manuals state that such growth is not possible. This thesis present data that indicates that olives were grown in the territory of Sagalassos, but also examines the conditions olives require to grow and if such conditions existed in Pisidia. Through this I will be able to conclude whether the past presentation of data has does indeed prove that olives were grown within the territory of Sagalassos. Author Keywords: Agricultural Decision Making, Olives, Pisidia, Roman Agriculture, Sagalassos, Turkey
Hibernian Imagination
Artistic expressions such as writing, theatrical productions, music, and film arguably contribute to a culture’s representation of itself to the outside world. Most cultures have been either read or misread through their artistic outputs over the course of history, although the Irish culture stands as a particularly misunderstood one. Through years of colonization and rebel warfare, the country’s culture has acquired a particularly imagined depiction; violent, which through centuries has resulted in a flawed cultural imaginary today. This thesis presents this issue and proposes a means to better understand the Irish culture through a deeper understanding of the factors that have led the country’s cultural imaginary to its current misrepresentative state. Through an exploration of texts, theatre, music, and film, this thesis uncovers the factors which have led to Ireland’s current cultural depiction in hopes of creating a better understanding of the Irish culture. Author Keywords: cultural imaginary, Ireland, Irish culture, Irish stereotypes, public image, stereotypes
An Official Plan for Peterborough, Ontario
Using the Official Plan as the case study, this research examines the extent to which underrepresented groups are engaged in public consultation in the planning process for the City of Peterborough, Ontario, Canada. The Official Plan, along with the tools and secondary plans and policies which reinforce it, shape how people navigate and benefit from the built environment, such as access to public institutions and amenities, transit, parks, safe public space, quality housing, and more. This research frames the Official Plan as an opportunity for the city to demonstrate its new commitment to transparency and community engagement. Drawing on a range of experts and community members, and best engagement practices of other Canadian municipalities and nongovernmental organizations, a set of recommendations is proposed for the city’s community engagement framework. These recommendations emphasize an inclusive, democratic, and feminist approach to engagement and consultation which honours lived experience and local knowledge of diverse and underrepresented demographics and multi-sector stakeholders. Author Keywords: diversity, equity , inclusion, marginalized , public engagement, underrepresented
Examining the Role of Intermediary Organizations in Participatory Planning
This research evaluates the role of GreenUP, a non-profit in Peterborough, Ontario, as the intermediary organization for NeighbourPLAN. The project examines GreenUP’s role in facilitating and managing NeighbourPLAN, a participatory planning project with multiple local partners and actors. Six critical success factors are used to understand and conceptualize intermediary success (adapted from Holden et al., 2016). Critical success factors include knowledge; governance; relationships; resources; activities; and motivation. Findings from the research highlight the importance of trust, resources, and time within this framework. Author Keywords: Community Based Research, Intermediary, Neighbourhood, Non-profit, Participatory Planning, Partnership Structure
An Analysis of Hafted Biface Variability in the Kawartha Lakes and Trent River Drainage Region
The objective of this thesis is to evaluate the temporal sensitivity of morphological variability in hafted bifaces in the Kawartha Lakes and Trent River drainage region. This provides a base of information that will enable future analyses that address the possible sources of this variability and to test the robustness of existing typological categories of hafted bifaces for relative dating. This base of information is established via the use of a principal component analysis of shape, raw material, and use-life data from a large sample of hafted bifaces in the region, using a new geometric morphometrics method designed to improve the accuracy of shape representation. The results of the analysis indicate that while certain typological categories may represent distinct morphotypes that are temporally sensitive, the majority of typological categories in the sample show high, overlapping morphological variability that cannot be confidently correlated temporally based on shape alone. Author Keywords: Geometric Morphometrics, Morphological Variability, Ontario Archaeology, Principal Component Analysis, Project Point Morphology, Projectile Point Typology
North Shore Legacies
On the North Shore of Lake Ontario near Port Hope, Ontario is a large archaeological site (BaGo-29) that has been visited and occupied multiple times over the millennia. First called the Beatty site was originally excavated by avocational archaeologist Mr. Ed. Austin between 1963 and 1972. In the subsequent decades, the Beatty site would be revisited, renamed the Gibbs site, and re-excavated without knowledge of Mr. Austin’s initial investigations of the site. The present research concerns the study of the E.W. Austin Beatty site legacy collection. Inter-site comparisons of the E.W. Austin Beatty site assemblage to others throughout Southern Ontario and upstate New York in combination with intra-site analysis of the material culture remains and chronologically significant variables contained in the Austin assemblage reveal that the occupational history of the Beatty site may not be as simple as subsequent excavations have interpreted. Author Keywords: Avocational Archaeology, Bone Tool Analysis, Intra-Site Analysis, Legacy Collections, Occupational History

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Graduate student theses produced at Trent University. You may also browse theses and dissertations by year, program, or author.

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