Trent University

It is through spending time outside that we develop the ecological literacy and caring attachments to the land that will lead to greater concern and responsibility for the more-than-human world. But intermediate students in the formal education system are taught almost exclusively indoors, especially in winter. If Canadian teachers remain mostly inside when it is cold, they forego many opportunities to connect their students with the land upon which they live and learn. The purpose of this research is to understand the ways intermediate teachers in the formal education system interact with the outdoors in winter during the school day, how they feel about these interactions, and what influences their decisions when it comes to outdoor learning in winter. Understanding the lived experiences of teachers is essential, as it is they who decide whether instruct indoors or out. In the hierarchical education system, teachers' voices are not always considered in policy making. Photovoice is an ideal methodology for this study because it brings the lived experiences of a group who do not have the authority to make policy changes, to those who do. This photovoice study gave eight intermediate teachers the opportunity to document experiences in their own lives, raise their own consciousness about outdoor learning, and to share their voices with policymakers through their photographic art. This study draws four main conclusions: a) teachers need to develop stronger personal relationships with the outdoors in winter; b) schools need to reconsider the traditional recess model as it is often a time of stress for teachers and students; c) the curriculum needs to expect outdoor learning in all seasons; and d) teachers' voices need to be heard in relation to outdoor learning initiatives in schools. The findings are significant because they can influence policymakers to improve outdoor learning in schools which, in turn, will help teachers and students develop more comfortable and caring relationships with the outdoors in winter.

Keywords: winter, outdoor education, environmental education, outdoor learning, photovoice, intermediate teachers, intermediate students, formal education system

Author Keywords: environmental education, formal education system, outdoor education, outdoor learning, winter

Recent work at the site of Tamsagbulag, Mongolia, suggests it predates both agriculture and herding in the broader region by more than 2000 years. These excavations showed a more intensive use than expected, consistent with a hypothesis of year-round sedentism alongside a primary reliance on large game. This is noteworthy because, while sedentary hunter-gatherers are known, they are often heavily reliant on plant foods and/or small prey such as fish. Based on the evidence, this thesis concludes that the dwellings are most likely seasonally used rather than year-round settlements. Studying patterns in artifact distribution can inform our understanding of relative length of occupation through a study of accretion and depletion as they relate to habitation, abandonment, and post-abandonment processes. This research utilizes spatial analyses to visualize level-specific patterns in artifact distributions within each excavated dwelling and identify specific clusters of artifacts that may hold insight into potential waste management practices.

Author Keywords: House floor assemblages, Neolithic, Seasonality, Sedentism, Site formation processes, Spatial analysis

Damage to the hippocampus (HPC) causes retrograde amnesia for some memories, but spaced learning mitigates this. Contextual fear conditioning (CFC) studies in rats demonstrate that distributing conditioning over multiple sessions makes a memory less vulnerable to HPC damage, and it has been suggested this occurs through incremental strengthening of the memory outside the HPC via separate bouts of cellular consolidation. To explore this, we examined the number of, and temporal intervals between, spaced CFC sessions required to make a memory less vulnerable to HPC damage. Experiment 1 established six sessions spaced over three days as sufficient to create a memory no longer requiring the HPC. Experiments 2 and 3 found that spacing those six sessions in a single day also created a memory no longer requiring the HPC, but only when the sessions were separated by an interval believed to be sufficient for separate bouts of cellular consolidation to occur.

Author Keywords: consolidation, context fear, hippocampus, memory, retrograde amnesia, spaced learning

Increasing wildfire frequency, driven by climate change, can change the concentration andcomposition of dissolved organic matter (DOM) exported from land into receiving waters by removing terrestrial vegetation, changing soil hydrology, and interrupting microbial degradation. In this thesis, I tested how wildfire impacts the molecular composition and reactivity of DOM. I compared DOM from boreal headwater streams in northwestern Ontario, Canada between 10 catchments recently affected and 10 comparable catchments that were undisturbed for at least 20 years. Using optical spectroscopy, ultra-high-resolution mass spectrometry, and incubation experiments, I found that burned streams had 29% higher average DOM concentrations and contained less bioavailable DOM, which resulted in microbes respiring more CO2 in burned streams rather than using carbon to build biomass. These results indicate that the impacts of wildfire on carbon sequestration have been underestimated and highlight the need to consider wildfire in forest carbon budgets.

Author Keywords: boreal forest, carbon flux, dissolved organic matter, Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS), headwater streams, Wildfire

Understanding habitat needs of a species is critical, especially for species reintroduced to an area or expanding their range. I evaluated roost tree selection and survival probability of GPS-tagged eastern wild turkeys (Meleagris gallopavo silvestris) from 2017–2020 and 2022 in Peterborough County, Ontario, Canada. Fine-scale roost tree selection was associated with larger trees, with microclimate factors such as wind speed, temperature, and precipitation having little to no influence. Turkeys showed high annual survival probabilities relative to other northern regions of their range, but survival was not influenced by proximity of roost tree to a building. The behaviour of roosting in an elevated perch helps turkeys avoid ground-dwelling predators, but specific selection of one tree versus another has little additional benefit to survival. Turkeys appear to survive well in a landscape that is a mix of agricultural and urban, with forest patches intact for roosting habitat.

Author Keywords: Eastern wild turkey, habitat, Meleagris gallopavo silvestris, microclimate, roost sites, survival

AbstractThe Rise of Property and the Death of the Moral Economy: Enclosure and Social Unrest in Late-Eighteenth Century England – Ewan Martel

Eighteenth-century Great Britain was a kingdom marked by the rise of a property-based and highly individualistic conception of social and economic structures came a doctrine of improvement based upon extracting the most value from a tract of land possible. Parliamentary enclosure was critical to this change, seeing lands converted from something of communal value to individual property. This work argues that the growth and implementation of parliamentary enclosure was a source of immense social unrest in late-eighteenth century Britain as the process and its supporting ideologies were inherently counter-intuitive to traditional systems of communal land ownership and subsistence. This paper utilizes primary sources from both landowners implementing enclosure and the responses of commoners and enclosure's opponents to better understand the agency of the peasantry in their fight against a damaging practice and how forms of unrest were multi-faceted and prevalent, despite the growing power of the land-owing gentry.

Author Keywords: Class, Common Lands, Eighteenth-Century, Enclosure, Great Britain, Social Unrest

Inserting a peripheral intravenous catheter (PIVC) can be a stressful moment in a patient's hospital stay, especially in patients with difficult intravenous access (DIVA). This study investigated the applicability of a mid-range theory of trauma-informed care (BITTEN) to PIVC insertion in DIVA patients. A qualitative, semi-structured interview was conducted with 17 DIVA patients. Data was analyzed by item and compared to the BITTEN model. Key findings include: the BITTEN model can help explain the traumatic experiences DIVA patients have with PIVC insertion, DIVA patients have experienced institutional betrayal after medical and other traumas, previous adverse PIVC experiences inform expectations for future experiences, and DIVA patients' trust in clinicians is restorative. In fact, adverse PIVC experiences have little to do with the needle itself.

Author Keywords: access, betrayal, DIVA, intravenous, peripheral, trauma

Indigenous men are disproportionally incarcerated in the Canadian criminal justice system. A disproportionate number of Indigenous men who are incarcerated have also been through the foster care and adoption system. A good deal of them are disconnected from their cultures, traditions and communities. For many the prisons are the first times that they encounter Indigenous Knowledge (IK), Elders, and Knowledge Holders, and the introduction to IK can be a watershed moment for them. Reconnection is a critical first step in a healing journey that many Indigenous men begin in prisons. The healing journey is about healing from their history, traumas, and the actions that led them to prisons, but healing is also a process of healing towards a better life and better future. It does not stop once they are beyond the prison walls. This research project focuses on the Indigenous Healing Programs and Services that support the men that are on this healing journey. Using the Haudenosaunee framework of Kan'nikonhrí:io (the Good Mind) and Wake'nikonhrèn:ton (the Crooked Mind), this project endeavours to understand how these programs and services understand and support healing, how masculinity factors into the delivery of these programs.

Author Keywords: Community, Good Minds, Haudenosaunee, Healing, Social Programming, Social Work

Understanding threats to declining species at multiple stages of their annual cycle is important for determining the cause of their declines and conserving their populations. To assess potential responses to changing habitat and predators under climate change, I compared the nest site characteristics, responses to human intruders, and migratory patterns between Short-billed Dowitchers and Stilt Sandpipers breeding in Churchill, MB. I conducted behavioural observations and habitat surveys and deployed radio transmitters on birds during incubation. Short-billed Dowitcher nests had higher concealment and adults were more aggressive than Stilt Sandpipers. Short-billed Dowitchers took an eastern migratory route and stopped in the southeast US, whereas Stilt Sandpipers migrated west. Short-billed Dowitchers displayed relatively high connectivity during migration with nearly 1/3 of confirmed stopovers occurring at a single site in Georgia. These findings highlight the importance of considering varying antipredator defense and migration strategies in the face of climate change.

Author Keywords: Central Flyway, incubation, Midcontinent, migratory connectivity, Motus, nest concealment

Migration, space use, and phenology play key roles in shaping avian populations and are therefore critical for conservation. My thesis examines the migration strategies and non-breeding spatial requirements of Virginia's beach-nesting American Oystercatchers (Haematopus palliatus), as well as the nesting phenology of mid-Atlantic American Oystercatchers and Piping Plovers (Charadrius melodus). I assessed migratory decisions using field-readable bands and GPS transmitters, finding that ~90% of Virginia's beach-nesting American Oystercatchers migrate out-of-state during the non-breeding season, though tested hypotheses did not strongly predict migration patterns. I then estimated home range sizes of American Oystercatchers during the non-breeding season, revealing high individual variation (12.1-201.6 km²) and a potential trend toward larger home ranges in males. Finally, I analyzed clutch initiation timing of American Oystercatchers and Piping Plovers in response to climate change, finding that American Oystercatchers advanced timing of breeding by 10.7 days between 2005-2022, while Piping Plovers showed no significant shift.

Author Keywords: behavioural ecology, climate change, home-range, migration, movement ecology, phenology