English

Witches and Bawds as Elderly Women in England, 1680-1730

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Creator (cre): McMorrow, Erin, Thesis advisor (ths): Hurl-Eamon, Jennine, Degree committee member (dgc): Siena, Kevin, Degree committee member (dgc): Harris-Stoertz, Fiona, Degree granting institution (dgg): Trent University
Abstract:

Many print sources from 1680 to 1730 depicted bawds and witches as figures of transgressive elderly femininity. They were often described as having roughly the same anti-social behaviour, age, and gender. Both witches and bawds were seen as seducing innocents into a life of sin, associating with the

devil, and acting lustful and unmotherly. Furthermore, they were connected with Catholicism and were thought to unite sinners against English Protestant society. The physical descriptions of the witch and procuress also bore significant patterns in presenting deformity, disfigurement, smelliness, rottenness, and death, traits generally connected with elderly women. Though historians have recognized the tendency of the witch or bawd to be characterized as an old woman, none have conducted a systematic comparison of the two stereotypes. Such an analysis can offer insight about the social anxieties around aging femininity in this period.

Author Keywords: bawd, cheap print, elderly women, old age, witch, witchcraft

2016

Pursuing Different Policy Paths in Long-Term Care: Manitoba, Ontario and the Politics of Commercialization

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Names:
Creator (cre): Twomey, Amy, Thesis advisor (ths): Struthers, James, Degree committee member (dgc): Chivers, Sally, Degree committee member (dgc): Armstrong, Hugh, Degree committee member (dgc): Anastakis, Dimitry, Degree committee member (dgc): Wiseman, Nelson, Degree granting institution (dgg): Trent University
Abstract:

Because federal funding for long-term care was not included as part of Canada's publicly-funded universal health care system, provincial governments have been free to determine how much, or how little, they will rely on the for-profit sector to meet the long-term care needs of their senior populations. The proportion of beds in the for-profit sector differs in each province, demonstrating that policy approaches to this type of care have developed according to distinct provincial political contexts. In this dissertation I explain why governments in two provinces, Manitoba and Ontario, have come to rely on the proprietary sector to markedly different degrees. While in the federation Manitoba stands out for its restrained reliance on this form of care, Ontario stands out for its exceptional dependence on commercial provision. In the chapters that follow I employ an historical institutionalist framework of analysis to explain why these neighbouring provinces initially pursued different policy paths in long-term care and how these paths have been sustained over time.

Following an introductory chapter in which I explain the reasons for the marginalization of long-term care within national health policy making, I provide in-depth analysis of these case studies in policy divergence. I argue that contemporary policy differences between these neighbouring provinces cannot be understood in isolation from long-term historical processes. Focusing largely on the period from the 1960s to the 1990s, I emphasize that present differences in ownership are a reflection of the different constellation of actors, events, ideas and institutions that came together at critical junctures in time, and the lasting legacies that these early windows of opportunity for reform have had on subsequent rounds of long-term care policy-making. In each province, diverging ideas about the appropriate role of the for-profit sector in meeting the long-term care needs of an aging population rose to prominence on the political agenda. Over time, rigidities developed in each system, making it difficult for actors advocating for new directions in ownership to realize their ambitions.

In both provinces policies put in place at earlier times greatly influenced future political dynamics, altered the guiding principles of government departments and policy makers, provided incentives for different interest group formations, and led to contrasting public expectations about the proper balance of the for-profit and non-profit sectors in long-term care provision. I conclude this dissertation by arguing that its findings can contribute in important ways to present discussions about long-term care reform in Canada generally and about the future role of for-profit providers specifically.

Author Keywords: Comparative Politics, Health Policy, Historical Institutionalism, Long-Term Care, Path Dependency, Provincial Politics

2014

HABITAT SELECTION AND LIFE-HISTORY TRAITS OF BREEDING BIRDS IN THE BOREAL-TUNDRA ECOTONE, WITH SPECIAL ATTENTION TO THE AMERICAN ROBIN (TURDUS MIGRATORIUS)

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Creator (cre): Turner, Devin Michael Ernest, Thesis advisor (ths): Nol, Erica, Thesis advisor (ths): Nguyen, Linh P, Degree committee member (dgc): Abraham, Kenneth F, Degree granting institution (dgg): Trent University
Abstract:

I investigated biodiversity of birds and vegetation associations along the boreal-tundra ecotone in Ivvavik National Park, Yukon Territory, and breeding adaptations used by American Robins (Turdus migratorius) at high latitudes. Twenty bird species were detected over three years using point-count surveys. Densities of American Robin, Dark-eyed Juncos (Junco hyemalis), and Yellow-rumped Warbler (Dendroica coronata) had positive relationships with tree and shrub density, whereas density of White-crowned Sparrows (Zonotrichia leucophrys) was negatively related to tree density. American Robins at this latitude raised only one brood, but females laid slightly larger clutches, the young fledged earlier, and pairs experienced higher nest-success than American Robins at more southerly latitudes. American Robins selected nest sites with high vegetation volume, at both the nest-site, and the nest-patch. This study is important for the first description of the bird community at this high latitude location, and describing how a species at the northern limit of the boreal forest has adapted to living with short-breeding seasons.

Author Keywords: American Robin, Ivvavik National Park, Life History, Nest-stie selection, Northern limit

2013

"Multimodal Contrast" from the Multivariate Analysis of Hyperspectral CARS Images

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Creator (cre): Tabarangao, Joel Torralba, Thesis advisor (ths): Slepkov, Aaron D, Degree granting institution (dgg): Trent University
Abstract:

The typical contrast mechanism employed in multimodal CARS microscopy involves the use of other nonlinear imaging modalities such as two-photon excitation fluorescence (TPEF) microscopy and second harmonic generation (SHG) microscopy to produce a molecule-specific pseudocolor image. In this work, I explore the use of unsupervised multivariate statistical analysis tools such as Principal Component Analysis (PCA) and Vertex Component Analysis (VCA) to provide better contrast using the hyperspectral CARS data alone. Using simulated CARS images, I investigate the effects of the quadratic dependence of CARS signal on concentration on the pixel clustering and classification and I find that a normalization step is necessary to improve pixel color assignment. Using an atherosclerotic rabbit aorta test image, I show that the VCA algorithm provides pseudocolor contrast that is comparable to multimodal imaging, thus showing that much of the information gleaned from a multimodal approach can be sufficiently extracted from the CARS hyperspectral stack itself.

Author Keywords: Coherent Anti-Stokes Raman Scattering Microscopy, Hyperspectral Imaging, Multimodal Imaging, Multivariate Analysis, Principal Component Analysis, Vertex Component Analysis

2014

War and Peace: Attachment, Conflict, and Collaboration in Adult Sibling Relationships

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Names:
Creator (cre): Tibbetts, Gillian, Thesis advisor (ths): Scharfe, Elaine, Degree committee member (dgc): Navara, Geoff, Degree committee member (dgc): Remple, Lynn A., Degree granting institution (dgg): Trent University
Abstract:

The relationship between siblings is unique in both its history and duration across the lifespan. Previous relationship researchers have examined siblings in childhood, but few have explored this distinctive relationship in adulthood. In this study, the adult sibling relationship was explored from an attachment perspective to determine the effect of an individual's attachment on conflict and collaboration with siblings. As expected, secure attachment predicted negative associations with conflict and positive associations with collaboration whereas insecure attachment (fearful, preoccupied, and dismissing) predicted opposite patterns. Results were compared to the abundance of literature on romantic relationships and findings from this study provided support for the theory that siblings function as attachment figures in adulthood.

Author Keywords: Attachment, Collaboration, Conflict, Relationships, Romantic partners, Siblings

2014

THE LIFE HISTORY STRATEGY, GROWTH, BODY CONDITION, AND DIET OF STOCKED AMERICAN EEL (Anguilla rostrata) IN THE UPPER ST. LAWRENCE RIVER AND LAKE ONTARIO

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Names:
Creator (cre): Stacey, Joshua Alexander, Thesis advisor (ths): Fox, Michael, Thesis advisor (ths): Pratt, Thomas, Degree granting institution (dgg): Trent University
Abstract:

My study was primarily focused on the comparison of life history traits between stocked American eel and their naturally recruited conspecifics in Lake Ontario and the upper St. Lawrence River (USLR/LO). I found that stocked eels experienced faster annual growth than their naturally recruited conspecifics and were comprised of a greater proportion of males. These findings indicate that the life history patterns of American eel may be genetically predisposed. Additionally, my study served to characterize the diets of stocked American eel and examine possible associations between eel and prey size. The eels consumed a number of macroinvertebrate prey orders as well as fishes and macrocrustaceans, with the latter prey items being more prevalent in the diets of larger eel specimens. A disparity in eel growth and body condition was observed between two primary stocking locations and were likely attributable to differences in available forage and habitat. Lastly, growth, body condition, and stocked eel diet were compared between lentic and lotic habitats. Eels from lotic streams experienced slower annual growth and had reduced body condition, and their diets were comprised of smaller prey items. The results of this study suggest that the current stocking methods employed in the USLR/LO are not suitable to restore the natural recruitment of individuals that will exhibit desired life history traits.

2013

Ostrich Eggshell from the Far Eastern Steppe: Stable Isotopic Exploration of Range, Commodification, and Extirpation

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Names:
Creator (cre): Routledge, Jennifer, Thesis advisor (ths): Szpak, Paul, Degree committee member (dgc): Janz, Lisa, Degree committee member (dgc): Williams, Jocelyn, Degree granting institution (dgg): Trent University
Abstract:

This study uses stable isotope analysis on both the organic and inorganic fractions of ostrich eggshell obtained from archaeological excavations in Mongolia, northern China, and southern Siberia. By establishing the δ13Corg, δ15N, δ13Cinorg, δ18O isotopic compositions of the eggshell of the Asian ostrich (Struthio asiaticus), this study provides insight into the maximum northern range of the species, which I suggest reached Lake Baikal, Siberia through the late Pleistocene, up to the Last Glacial Maximum. Through these isotopic data, the interactions between S. asiaticus and human forager groups are explored, specifically the trade of ostrich eggshell by hunter/gatherer populations in the early/middle Holocene. Because of deviations from the correlation between δ18O and latitude observed for other sites, the site of Shabarakh-usu may have been an aggregation point for ostrich eggshell from other locations. Movement of eggshell is observable from north to south but not from south to north on the basis of eggshell δ18O. Finally, I am able to develop a hypothesis regarding the drivers of species extinction. Specifically, I discuss trade in eggshell leading up to extinction as evidence for human pressure on S. asiaticus at a time when environmental shifts likely isolated populations in small regions of habitable landscape. I therefore implicate both changing environmental conditions and human pressure in my proposed explanation for the extinction of S. asiaticus.

Author Keywords: Extinction, Holocene, ostrich, Pleistocene, Steppe, Struthio

2020

Managing Through Change: Indigenous knowledge, climate change and the case of moose in Nunatsiavut

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Creator (cre): Rosa, Katie, Thesis advisor (ths): Furgal, Chris, Degree committee member (dgc): Schaefer, James, Degree committee member (dgc): Snook, Jamie, Degree granting institution (dgg): Trent University
Abstract:

Arctic ecosystems are increasingly altered by climate change, and some wildlife species, like moose, are adapting to these new conditions. Indigenous knowledge and values, such as those held by Inuit, can provide insight into adaptive wildlife management and may improve ecosystem resiliency. This thesis seeks to address the following question: What is the potential role of Indigenous knowledge in managing wildlife under climate change? This thesis follows a qualitative exploratory design involving 1) a systematic literature review of the peer-reviewed literature and 2) a case study on moose in Nunatsiavut in which 35 interviews and participatory mapping were conducted with Inuit beneficiaries. The results demonstrate a range of potential roles for Indigenous knowledge and values in managing species impacted by climate change. The case study of moose in Nunatsiavut has applicability across the Canadian Arctic where the sustainability of harvested species is at risk.

Author Keywords: Arctic, climate change, Indigenous knowledge, moose, Nunatsiavut, wildlife management

2021

Surface temperature regulation during stress exposure: evidence of a trade-off between thermoregulation and the physiological stress response in birds

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Names:
Creator (cre): Robertson, Joshua Kenneth, Thesis advisor (ths): Burness, Gary, Thesis advisor (ths): Mastromonaco, Gabriela, Degree committee member (dgc): Nol, Erica, Degree granting institution (dgg): Trent University
Abstract:

The influence of stress exposure on the body temperature of vertebrates has been known for nearly two-thousand years. While the proximate mechanisms supporting this phenomenon are well described, the ultimate mechanisms remain enigmatic. In this thesis, I propose a novel hypothesis which states that changes in body surface temperature (henceforth "surface temperature") following stress exposure occur to reduce energetic expenditure toward thermoregulation, thus freeing energy for use in the stress response (hereafter, the "Thermoprotective Hypothesis"). Using a paired experimental design, I first show that black-capped chickadees (Poecile atricapillus, Linnaeus, 1766) exposed to repeated stressors decrease their surface temperatures at low ambient temperatures, and increase their surface temperatures at high ambient temperatures relative to unstressed controls. These changes in surface temperature contribute to a relative reduction in heat loss in the cold, and a relative increase in heat dissipation in the warmth among stress-exposed individuals, thus reducing their energetic demands toward more costly thermoregulatory strategies. Next, I show that stress-induced changes in surface temperature are most pronounced in chickadees that experience naturally-occurring resource-restrictions, suggesting that this response occurs to balance allocation of energy among the stress response and thermoregulation (i.e. a true energetic trade-off ). Third, I show that the magnitudes of chronic, stress-induced changes in surface temperature are highly variable among, and highly consistent within, chickadees, therefore suggesting that this response could hold adaptive significance if such variation among individuals is heritable. Finally, using domestic pigeons (Columba livia domestica, Gmelin, 1789) as a model species, I show that stress-induced changes in surface temperature are highly pronounced at bare tissues with a critical role in thermoregulation for some avian species (the bill), when compared with responses at surrounding bare tissues (the eye region). Together, these findings strongly support the Thermoprotective Hypothesis and suggest that endotherms may trade energetic investment toward thermoregulation with that toward the stress response in resource-limiting environments.

Author Keywords: heat transfer, infrared thermography, stress physiology, surface temperature, thermoregulation, trade-off

2021

The Diversity, Biogeography, and Functional Traits of Native Bees from Ontario's Far North and Akimiski Island, Nunavut

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Creator (cre): Vizza, Kayla Marie, Thesis advisor (ths): Beresford, David V, Degree committee member (dgc): Schaefer, James, Degree granting institution (dgg): Trent University
Abstract:

Bees (clade Anthophila), are poorly studied in northern Canada, as these regions can be difficult to access and have a short growing season. This study examined bees from two such regions: Ontario's Far North, and Akimiski Island, Nunavut. I present this study as the largest biogeographical study of bees performed in these remote areas to enhance knowledge of northern native bees. I found 10 geographically unexpected species in Ontario and on Akimiski Island. Rarefaction and the Chao 1 Diversity Index showed that Akimiski is nearly as diverse as the Far North of Ontario, a significantly larger area. I also found, based on log femur length versus latitude, Bombus worker size was consistent with Bergmann's rule, and there were no apparent statistical differences in the community weighted means of functional traits between the Far North's Boreal Shield and Hudson Bay Lowlands ecozones. This work provides invaluable knowledge of the native bee species from these regions, which has implications for their future conservation.

Author Keywords: Akimiski Island, Bergmann's rule, Chao 1, Community-weighted means, native bees, rarefaction

2019