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Decades of sulphur and nitrogen deposition acidified forest ecosystems across northeastern North America causing declines in pH and exchangeable base cation concentrations, negatively affecting biota. To assist natural recovery, researchers are investigating using alkaline soil amendments such as wood ash. However, much remains unknown about its use. This thesis evaluated the effects of non-industrial wood ash application (between 0 – 12 Mg ha-1) on soil chemistry, understory vascular plant communities and sugar maple (Acer saccharum Marsh.) regeneration in central Ontario. Wood ash increased soil pH and concentrations of calcium, magnesium and several metals. Vascular plant species abundance, richness, and diversity exhibited no consistent treatment effect. Sugar maple seedling survivorship was adversely affected by wood ash applications > 4 Mg ha-1, while growth was unaffected. These results support related research regarding the ability for wood ash to increase soil pH and base cation status but raises uncertainty regarding consequences for vascular plants.

Author Keywords: Acer saccharum, Acid deposition, Ecosystem regeneration, Soil amendment, Understory vegetation, Wood ash

This thesis introduces a weather-driven bio-economic optimization model for agricultural planning and decision-making. The model integrates weather simulations—including precipitation, temperature, relative humidity, and reference evapotranspiration (ETo)—to estimate crop yields using the AquaCrop simulator. These yield estimates are then incorporated into a multi-objective optimization (MOO) model that aims to maximize gross profit and economic water productivity (ET), while minimizing land use. The MOO model's results provide insights into key agricultural planning questions, such as what, where, when, and how much to plant.The findings demonstrate the model's potential to enhance agricultural decision-making by offering optimized crop combinations that improve both economic returns and land use efficiency. This research contributes to the development of a dynamic agricultural planning model by integrating weather forecasting, crop simulation, and multi-objective optimization.

Author Keywords: AquaCrop, Artificial neural network, Markov chains, Multi-objective optimization, Reference evapotranspiration, Stochastic differential equation

In 1995, Donald Judd's Chinati Foundation held its inaugural symposium titled "Art in the Landscape". During the roundtable discussion, walking artist Hamish Fulton asserted that there are fundamental differences between his art and American Land Art. Drawing on Fulton's assertion, this dissertation argues for the redefinition of British environmental art, conventionally called Land Art after the American tradition. Through the exploration of the work of several contemporary and living British artists, the British School of Aesthetic Chorography is articulated. The practice of aesthetic chorography involves an embodied experience of place, such as walking or gardening, which results in a creative response. This creative response is the place-work of aesthetic chorography and can take a plethora of forms including the attachment of language to place, the creation of an ephemeral marker, an image or a representation or the creation of a printed object which recalls the place in some way. Derived from the unfolding of this place-work, the role of language in art is a theme which is carried through the dissertation. The role of language in childhood, memory and constituting knowledge claims is also explored particularly as this relates to place and to loss and the conservational potential of language with respect to place is theorized in a place theory of language and a recollective theory of place. The conservational element of this work is further developed through the articulation of aesthetic chorography as a parochial tending practice which devotes attention to place as an experienced phenomenon. The persistence of parochial places and vernacular tending practices, however, require conservation. The heritage work of the Common Ground Trust in the UK which seeks to promote the "local distinctiveness" of places is explored and the keeping place is raised as a way of thinking about the engaged and living preservation of vernacular places, particularly in the face of environmental crisis.

Keywords: Aesthetics, Aesthetic Chorography, Art, Common Ground Trust, Concrete Poetry, Conservation, Critical Topography, Environmental Aesthetics, Environmental Ethics, Epistemology, Heritage, Keeping Place, Land Art, Landscape, Language, Lieu de Mémoire, Local, Memory, Monument, Parochial, Place, Place-work, Tending, Vernacular, Walking, Jonathan Bordo, Lionel L. Ferguson, Alec Finlay, Ian Hamilton Finlay, Hamish Fulton, Andy Goldsworthy, Donald Judd, Richard Long, Robert Macfarlane, Brian Nichols, Ferdinand de Saussure, Richard Skelton, Robert Smithson, James Turrell, W.J.T. Mitchell

Author Keywords: Aesthetic Chorography, Critical Topography, Heritage, Keeping Place, Landscape, Place

From the early days of colonization, the use of stereotypes has negatively impacted Indigenous women. One mode of transmitting those stereotypes is through fiction. This thesis examines Indigenous female characters in contemporary crime fiction, written by non-Indigenous Canadian authors, for evidence of stereotype depiction. Two novels were selected for this study, The Last Good Day by Gail Bowen, and Cold Mourning by Brenda Chapman. The books were critically scanned using characterization analysis for evidence the Indigenous female characters were depicted as stereotypical Indian Princess or squaw. Results indicated the characters did possess some traits associated with the stereotypes, but overall, the characters reflected a realistic depiction of Indigenous women. The characters are authentic, relatable Indigenous women in the two books discussed, and are examples of how characters who are Indigenous can be respectfully depicted in Canadian crime fiction.

Author Keywords: Colonization, Crime Fiction, Indigeneity, Indigenous women, Relationships, Stereotypes

Video games have always been intrinsically linked with the technology available for the progress of the medium. With improvements in technology correlating directly to improvements in video games, this has recently not been the case. One recent technology video games have not fully leveraged is Cloud technology. This Thesis investigates a potential solution for video games to leverage Cloud technology. The methodology compares the relative performance of a Local, Cloud and a proposed Hybrid Model of video games. We find when comparing the results of the relative performance of the Local, Cloud and Hybrid Models that there is potential in a Hybrid technology for increased performance in Cloud gaming as well as increasing stability in overall game play.

Author Keywords: cloud, cloud gaming, streaming, video game

Measuring biodiversity has become increasingly complex as biologists and ecologists have gradually learned more about how biotic systems are structured and interact. Given the wide range of tools, techniques and approaches now in use to quantify biological diversity, it is useful to consider different "dimensions of diversity" to classify these measurements and provide context for their interpretation. Even within the genetic dimension of diversity alone, recent improvements in theory, technology, and statistics has generated several approaches which can provide distinct insights into natural systems. In this thesis, I use multiple "axes of diversity" to subdivide the dimension of genetic diversity to better understand a complex ecological system - the unisexual Ambystoma complex on Pelee Island, Ontario. By focusing on the genomotype axis, I found that the composition of local unisexual Ambystoma assemblages generally reflects the current relative abundance of the local sexual host populations. This suggests that sexual hosts can be thought of as a keystone species for the complex not only because they are required for unisexual Ambystoma to reproduce, but also because their relative abundance governs the composition of entire unisexual Ambystoma assemblages. Comparatively, when assessing the lineage axis of genetic diversity, unisexual Ambystoma assemblage diversity patterns primarily reflected historic landscape structure, and spatial patterns of increased lineage richness were linked to areas where both potential hosts were locally available (currently or historically). Thus, while both of the investigated axes of diversity are forms of genetic diversity, each revealed distinct factors that have shaped contemporary diversity patterns across the landscape operating at different spatial and temporal scales. Critically, our understanding of complex ecological systems is likely to be broadened by including additional axes of diversity (e.g., allelic, loci, or chromosomal structure axes), and such investigations are not limited to clonal hybrid systems. Overall, this work illustrates the importance of combining insights from distinct conceptual and analytical toolkits to generate a comprehensive understanding of the factors which have shaped the patterns of diversity we observe today.

Author Keywords: Biological diversity, Dimensions of diversity, Ecological genetics, Metacommunity ecology, Unisexual Ambystoma

This is a community-based research project investigating the ability to meet a vision of co-governance. This dissertation investigates the effectiveness of the Yukon Environmental and Socio-economic Assessment Board (YESAB) as a treaty-implementing institution under Chapter 12 of the Umbrella Final Agreement (UFA). The UFA, a modern treaty between Yukon First Nations (YFNs), Canada, and the Yukon, outlines a vision for co-governance, environmental stewardship, and sustainable development. Established under the Yukon Environmental and Socio-economic Assessment Act (YESAA), YESAB was designed to operationalize this vision through a Development Assessment Process that integrates Indigenous participation and cultural values into decision-making on development projects. Guided by three core research questions, the study assesses: (1) how well YESAB fulfills the spirit and intent of Chapter 12 of the UFA; (2) the strengths and weaknesses of its impact assessment processes, particularly in terms of inclusivity, responsiveness, and environmental integrity; and (3) the influence of other institutions and actors on YESAB's capacity to fulfill its treaty-mandated responsibilities. This study used a community-based participatory research framework and Constructive Grounded Theory methodology. Information was collected through a selected documentary analysis as well as interviews with 35 individuals with direct experience in Yukon's impact assessment system—including past/present YFN Self-Government officials, past/present YESAB staff, territorial regulators, Yukon-based NGOs, legal experts, and proponents. The findings reveal that while YESAB has made procedural strides—such as improved transparency and research depth—it continues to face structural and epistemic challenges that limit its ability to meaningfully implement the UFA's goals. These include inadequate incorporation of Traditional Knowledge, limited capacity and follow-up, and external interference from other regulatory bodies. Furthermore, participants emphasized that the Development Assessment Process is often constrained by outdated mining legislation, political pressures, and jurisdictional fragmentation. This research contributes to scholarly and policy discussions on Indigenous governance, treaty implementation, and environmental justice in Canada. It recommends specific legislative and institutional reforms to enhance YESAB's effectiveness and align its operations with the UFA's original intent. Ultimately, the dissertation underscores the need for an impact assessment system that is co-governed, culturally grounded, and responsive to both ecological and Indigenous priorities in the Yukon.

Keywords: Impact Assessment, treaty implementation, resource extraction, Yukon, Indigenous Rights, colonization, spirit and intent, Umbrella Final Agreement, Yukon Environmental and Socio-Economic Assessment Board, co-management, Traditional Knowledge

Author Keywords: Impact Assessment, Indigenous Rights, resource extraction, treaty implementation, Yukon, Yukon Environmental and Socio-Economic Assessment Board

Frog virus 3 (FV3) belongs to the genus Ranavirus within the Iridoviridae family.Its 105,903 base genome encodes 98 open reading frames (ORFs), including ORF 97R, a putative apoptosis regulator sharing 31% structural similarity with the anti-apoptotic Bcl- 2 family protein, myeloid cell leukemia 1 (Mcl-1). 97R contains a BH1 domain, implicated in apoptosis regulation, and a predicted C-terminal transmembrane domain, which acts as a membrane-anchoring domain, localizing 97R to the ER membrane. To study its role in host cell modulation, 97R was cloned into a vector and transfected into HeLa cells. Immunofluorescence revealed a time-dependent decrease in Protein Disulfide Isomerase (PDI) in 97R-transfected cells. Immunoprecipitation and western blotting revealed that 97R interacts with Prohibitin 1 (PHB1), a host protein involved in apoptosis regulation. This research provides insight into the novel functional role of 97R in host cells, enhancing our understanding of how FV3 may manipulate its host.

Author Keywords: Bcl-2 protein family, frog virus 3, Iridoviridae, ORF 97R, Protein-protein interactions, Ranavirus

An interesting question arises upon viewing the 1939 film, The Wizard of Oz (MGM). The main character Dorothy Gale faces a long arduous journey on foot. Why did she not have a car? Women had formed strong associations with the automobile in its early years, yet they appeared to have weaker associations with the automobile a few decades later. A look back to three other "Dorothies" from the World War I era demonstrates the evolution of women's associations with the early automobile, and how war impacted them. In the pre-World War I years, women drivers appeared in film, while Dorothy Levitt wrote columns for other women on how to drive and repair a car and many other women invented safety technologies for automobiles. During World War I, the pinnacle of recognition for women's driving emerged with the woman ambulance drivers on the front lines. Dorothie Feilding was one of the first women to arrive in Belgium to drive ambulances, often while under fire. Feilding and many women like her were given war medals for their service, and their bravery was touted in newspapers. However, once the war ended, their accomplishments would be erased and ignored. In the post-World War I years, Dorothée Pullinger's experience as CEO of the Galloway factory illustrate how ideas of masculinity and femininity. promoted by governments after the war, impacted women. The Galloway factory in Tongland Scotland, was staffed by women engineers and workers. After World War I ended, these women were pushed out of their jobs. War-induced disability and its economic costs to governments were at the heart of gender inequities and served to displace women from automobile technology. Policies such as Britain's "Restoration of Pre-War Practices Act" set the stage for a script that constructed women's jobs as expendable and marketed ideas of the disabled soldier needing to "re-gain his manliness" by re-entering the labour force at women's expense. As a result, the state imbued a new relational, gendered analytic onto automobile use and production that remains with western society today. Keywords: woman's labour, woman driver, automobile, factory labour, gendered technology, World War I, ambulance, silent film, Restoration of Pre-War Practices Act, Galloway, Tongland, First Aid Nursing Yeomanry, Munro Flying Ambulance Corps, Dorothy Levitt, Dorothie Feiling, Dorothée Pullinger.

Author Keywords: ambulance, automobile, Galloway, gendering, women, world war I

Wildlife translocation programs are widely employed as a strategy to reintroduce extirpated species into regions they once inhabited but no longer do. Reintroduction programs can be successful at re-establishing extirpated populations and also provide unique opportunities to study post-reintroduction population dynamics and behavioural ecology. The wild turkey (Meleagris gallopavo) is a forest generalist species that, prior to European colonization, inhabited much of the Carolinian zone in Ontario. This species was hunted to extirpation in the early 1900's and reintroduced in the mid-1980's through a series of wildlife trade agreements and coordinated trap and transfer efforts. Ontario's contemporary populations are seemingly thriving, with wild turkey harvest permitted in many regions of the province. However, given this species history of extirpation, understanding the size, distribution, and behavioural ecology of Ontario's reintroduced population of wild turkeys is essential to their long-term persistence in the province. We captured and radio-tagged 77 wild turkeys over four years in Peterborough, Ontario and studied their movement, sociality, and habitat preferences. My findings indicate that Ontario may contain relatively high densities of this species when compared with other parts of their range. My analyses also elucidated interesting aspects of this species habitat selection patterns within an anthropogenic landscape, in addition to novel findings surrounding wild turkey sociality and genetic structure.

Author Keywords: behaviour, genetics, Ontario, reintroduction, wild turkey, wildlife management