English

Stable carbon and nitrogen isotope analysis of 571 archaeobotanical samples was performed to assess agricultural practices at Cerro de Oro in the Cañete Valley, Peru, during the transition between the Early Intermediate Period and the Middle Horizon. This thesis presents a comprehensive range of δ13C and δ15N values for the major C3 and C4 plant resources at the site. No differences were found in the δ15N values of charred and desiccated maize cobs, suggesting that both types of plant remains can provide reliable δ15N measurements. Generally, the δ15N values of plants at the site were relatively high, with the exception of most of the legumes, suggesting that organic fertilizers were extensively used. Camelid dung and fish offal are the most likely fertilizers used at Cerro de Oro, but some very high δ15N values suggest that seabird guano may also have been used. Peanuts, a legume, had higher δ15N values than would be expected for legumes, suggesting that this plant may have been companion-planted alongside maize or other more heavily fertilizer crops. Cotton had the highest δ13C value among all of the C3 plants sampled from the site, suggesting that this crop grew in the driest conditions, possibly reflecting a deficit irrigation system. This study reveals how intensive and extensive agriculture supported the emergence and growth of Cerro de Oro, a monumental site of great regional importance.

Author Keywords: Andean Archaeology, Carbon and Nitrogen Stable Isotope Analysis, Cerro de Oro, Early Intermediate Period and Middle Horizon, Intensive and Extensive Agriculture, Plants

This thesis examines morphometric variability and decorative variability and complexityat the intervessel and intravessel levels in samples of complete and near-complete Middle and Late Woodland vessels. The purpose of this study is to determine how a better understanding of variability in Middle and LateWoodland period pottery can help interpret fragmentary assemblages and supplement minimum number of vessels estimates (MNV) and estimated vessel equivalents (EVE): two common methods of pottery quantification. This study also permitted the full characterization of the Charleston Lake and South Lake vessels with associated photographs. The results of this study indicate that sherd thickness and design can be used to confidently assign vessel fragments to single vessels, thereby improving minimum number of vessels estimates, and the process of measuring brokenness and completeness for estimated vessel equivalents. Three sherd thickness conversion indexes provide archaeologists with a way to relate non-diagnostic and non-fitting sherds to their original vessels by the measure of sherds in relation to rims or paired portions (eg. Rim and neck, neck and shoulder, body and shoulder, and body and base). With the use of the sherd thickness conversion indexes, an efficient method of MNV estimation is proposed.

Author Keywords: estimated vessel equivalents, minimum number of vessels, morphometry, pottery quantification, variability, Woodland Period ceramics

Phenolic compounds are used in industry, such as agriculture and biotechnology, and inevitably end up in our environment. These compounds may serve as a phenolic precursor to produce raw materials for a wide range of applications. Chemical oxidation has been the common synthetic pathway to oxidize phenols and related compounds. However, traditional chemical approaches suffer from use of harsh chemicals, waste generation, and lack of reaction selectivity. Electrochemical synthesis has emerged as an alternative method to mitigate common challenges associated with organic synthesis. Herein, electrochemical oxidation of 2,6-diphenylphenol (DPP) and 2,2-dihydroxybiphenol (DHBP) was carried out and compared to traditional chemical oxidation. Contrasted with chemical oxidation, cyclic voltammetry of DPP resulted in a range of products based on the specific potential ranges used, whereas chemical oxidation of DHBP yield a dark-coloured polymeric product. The electrooxidation and chemical oxidation of DPP and DHBP resulted in a solution colour change, indicative of the formation of new, but different products monitored by UV-vis, and characterized by nuclear magnetic spectroscopy (NMR), X-ray single crystal diffraction, IR spectroscopy, transmission electron microscopy (TEM), and gas chromatography-mass spectrometry (GC-MS). The data indicate that the synthetic outcomes are dependent on the synthetic methodology employed, and that electrooxidation and chemical oxidation can form products unique to the pathway utilized.

Author Keywords: chemoselectivity, electrochemistry, phenols, radical, synthesis

The outbreak of the Spanish Civil War in July 1936 divided national public opinions throughout the West. One of the factors behind such split was religious beliefs. This was the case for the United States and Ireland where Francisco Franco's rebels got significant public support. This work argues that both the Irish and American Catholic Church hierarchies and laity Catholics' support of the Nationalists had dramatic effects domestically. This thesis expands previous scholarship on the Spanish Civil War by utilizing primary sources from both American and Irish archives to understand the intention, forms, and controversy of Irish and American Catholics' support of the Nationalists.

Author Keywords: Anti-clericalism, Catholicism, Clergy, De Valera, FDR, Spanish Civil War

Understanding genetic structure, connectivity, and movement of a species iscritical to management and conservation. Genetic network approaches allow the analysis of genetic information with flexibility and few prior assumptions. In chapter one, I tested the ability of individual-based genetic networks to detect fine-scale structure and connectivity in relation to sampling efforts. My findings revealed individual-based genetic networks can detect fine-scale genetic structure of caribou when using 15 highly variable microsatellite loci. Sampling levels less than 50% of the estimated population size resulted in highly disconnected networks which did not allow for accurate structure analysis; however community detection algorithms were robust in grouping closely related individuals despite low sampling. In chapter two, I used individual-based and population-based genetic networks to investigate structure, connectivity, and movement of caribou across a large study area in Western Canada. A community detection algorithm partitioned the population-based genetic network at multiple spatial scales which uncovered patterns of hierarchical genetic structure and highlighted patterns of gene flow. The hierarchical population structure results aligned with the known distribution of different caribou Designatable Units (DUs) and additional structure was found within each DU. Furthermore, individual-based networks that were constructed with a subset of samples from the Mackenzie Mountains region of the Northwest Territories revealed patterns of long-distance movement and high connectivity across the region.

Author Keywords: Biological Conservation, Caribou, Community Detection, Connectivity, Genetic Networks, Structure

In Ontario, mainstream education often does not meet the individual learning needs of high school students who experience marginalization. Alternative school programs may offer these students greater support and flexibility in completing their high school diploma. While previous research on alternative education in Ontario is thorough, it is limited to the Greater Toronto Area (GTA). To address the lack of research within smaller communities, this project uses the experiences of alternative education students in the City of Peterborough to explore how alternative programs meet student needs. Using a narrative methodology, the project relies on interviews with six students who offer their stories of attending alternative education programs. Research findings suggest that alternative education programs offer a meaningful and effective way for students to complete high school. Participants emphasize the importance of positive relationships with teachers and staff, student-driven curriculum, paid co-operative credits, and material benefits.

Author Keywords: Alternative Education, Critical Pedagogy, Marginalization, Narrative Inquiry, Ontario, Student Experiences

Row crop agriculture and associated land use practices including tile drainage and conservation tillage have been cited as a probable cause of re-emerging eutrophication in the lower Great Lakes. In this thesis, I sought to quantify and evaluate the effect of agricultural land cover and land use changes on total phosphorus (TP) and nitrate-nitrogen (NO3-N) concentrations and export in north shore Lake Ontario tributaries. This included (a) a long-term data analyses at 12 large watersheds (47 to 278 km²) using historical land cover and water quality data (1971-2010), and (b) a space-for-time study examining 12 small sub-catchments (< 8 km²) with majority (> 50%) row crop, pasture, or forest cover. Concentrations of TP were greatest in urbanized watersheds and declined particularly during the first decades of the study period, while NO3-N concentrations were greatest and steadily increased in agricultural catchments with increasing row crop cover. The space-for-time approach revealed that TP concentrations were similar across agricultural land uses and that export was most dependent on runoff. Meanwhile, NO3-N concentrations and export were greatest in row crop catchments and were positively related to row crop area. These results suggest that increases in row crop cover and associated agricultural practices including increased nutrient amendments and tile drainage may be responsible for increased NO3-N concentrations and export in northern Lake Ontario tributaries.

Author Keywords: agriculture, Lake Ontario, nitrogen, phosphorus, streams, Water quality

Faced with the intersecting environmental crises of the 21st century, conservation organizations are searching for practices that produce better, more sustainable outcomes. However, they have often relied on forms of conservation which shore up rather than disrupt settler relationships to land in the form of fortress conservation and assumptions about the human-nature dualism. In this thesis, I examine a local land trust that intends to include community[-based] conservation into its conservation practices. In particular, I explore how the organization's volunteers understand and construct the relationship between community and conservation, and the ways this might impact operations. Using a community-based research approach, interviews (n=17) were conducted. The findings indicate that the volunteers are demographically homogenous, leading to a homogenous, Western-science informed understanding of community[-based] conservation. This perspective views involvement of community as a direct trade-off with optimal ecological goals. As the volunteers wield uncommon power in organizational governance, difference in opinions toward missions or operations could lead to constraints on the organization. This study contributes to larger academic discourses on environmental volunteers, land trusts, and frames of conservation, and provides tangible recommendations to an organization attempting to include community[-based] conservation in its practices.

Author Keywords: community-based conservation, environmental governance, environmental volunteers, frames of conservation, land trusts, power

This study explores different ways of interpreting mainland and Knossian burial customs and assessing the manner in which they were used to explore themes of political and social status. In order to complete this study, correspondence analysis was applied to 98 tombs from Bronze Age (1700-1360 BCE) Knossos, Pylos, and Mycenae. Through the use of CA 14 hidden clusters and two hypotheses were generated and then analyzed in order to answer the following three research questions: can traditional explanations for the changes seen in Final Palatial Knossian burial customs be challenged; does the nature of Final Palatial burial customs support the theory of a mainland invasion; and can these patterns inform us about Knossian, Pylian, and Mycenaean society and the manners in which burials were used for social and political display. By answering these questions it became possible to understand Knossian, Pylian, and Mycenaean societies and their diverse uses of burial customs to display social and political status.

Author Keywords: Burial Customs, Correspondence Analysis, Final Palatial Period, Mortuary Studies, Mycenaean Crete

Lake whitefish (Coregonus clupeaformis) recruitment has declined substantially in several regions of the Laurentian Great Lakes since the establishment of non-native dreissenid mussels in the early 1990's. In Lake Huron, the reasons for the observed recruitment declines are currently unknown and there is limited knowledge about larval life stage. In our study, we determined whether larval hatching and growth rates have changed before and after dreissenid mussel invasion, and the role of several key environmental variables in influencing annual variation in larval densities. Larval fish were collected in the Fishing Islands spawning shoal during two time periods: a historical period (1976-1986) and a contemporary period (2017-2019). Larval densities and growth were lower in recent years, suggesting that recruitment is being limited at the larval life stage and that reduced food availability may be further limiting the growth during the larval stage. Annual variation of larval densities were influenced by spawning stock biomass, water levels, and dreissenid mussel presence, with higher water levels and the presence of dreissenid mussels being associated with higher larval densities. The direction of the effect of spawning stock biomass was either negative or positive depending on the model. We also found that larval density was a significant predictor of age 4 recruitment, indicating that year-class strength may be partly established at the larval life stage.

Author Keywords: Coregonus clupeaformis, Great Lakes, Lake Huron, Lake whitefish, Larval, Recruitment