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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
191

Meteorological analysis of the 22 June 2007 F5 tornado in Elie, Manitoba

Hobson, Justin 04 January 2012 (has links)
During the early evening of 22 June 2007, a violent tornado impacted the western edge of Elie, Manitoba. This was Canada’s first documented F5 tornado. Three primary research questions were posed: (1) What were the pre-storm environmental conditions on 22 June 2007? (2) How did the storm and associated tornado evolve? (3) How does this event compare to other major tornadic events in Canada and the U.S.? The tornado passed in close proximity to a fixed-location Environment Canada Doppler radar at Woodlands, Manitoba. This allowed for a detailed examination of local mesoscale boundaries that were present prior to and during the event. The Elie tornado was rare in the fact that it looped three times within the main track and it moved approximately 5 km during its 40 minute lifetime causing F5 damage to homes and structures when it was an estimated 50 m wide.
192

Using morphological and microsatellite analysis to investigate postglacial diversity in an isolated population of threespine stickleback, Gasterosteus aculeatus, in Nueltin Lake, Manitoba.

Schroeder, Bethany Sarah 12 April 2012 (has links)
Gasterosteus aculeatus (threespine stickleback) is a well-known model for behavioral and evolutionary studies. Rapid evolutionary radiations in postglacial timeframes have promoted distinct local populations with remarkable variation in biological characteristics. This study examines genetic and morphological variation among populations from the Thlewiaza watershed, specifically an isolated freshwater population in Nueltin Lake. Statistically significant genetic differences were observed using 11 microsatellite loci; FST values ranged from 0.29 (within watershed) to 0.48 (between watersheds) in comparison with the Nueltin Lake population. Gene flow between populations was likely inhibited due to isostatic rebound following the recent deglaciation of North America, 8.5 kya. In comparison with similar freshwater populations, the retention of defensive structures in G. aculeatus from Nueltin Lake was unexpected, and may reflect strong piscivorous predation pressures. Levels of differentiation, both genetic and morphological, observed in the Nueltin Lake population are highly significant, and should be recognised as a Designatable Unit (DU).
193

Agricultural pesticide use trends in Manitoba and 2,4-D fate in soil

Wilson, Janna January 2011 (has links)
In the last century, agricultural intensification on the Canadian prairies has resulted in increased pesticide use with the potential to expose non-target organisms to pesticides as a result of non-point source pollution. In order to minimize risk and implement programs and regulations that promote sustainable agricultural practices, information on the types of pesticides being used and their subsequent fate in soils is essential. In this study, pesticide use trends were summarized and Herbicide Risk Indicators (HRIs) were calculated for the 1996-2006 growing seasons; a time period in which genetically modified herbicide-tolerant (GMHT) crops were commercially adopted. This study also quantified the influence of soil moisture, temperature, slope position, and soil depth within the plough layer on 2,4-D [2,4-(dichlorophenoxy) acetic acid] fate in soil obtained from a cultivated undulating field in Southern Manitoba. Annual pesticide use varied slightly over the 11-year period, but overall, there were no significant increasing or decreasing temporal trends for herbicides, fungicides, or insecticides. Although the total mass of herbicides remained relatively consistent, there was a significant change in the types of herbicides applied associated with the increased adoption of GMHT-canola; the most significant trend being the increase of GLY, from 16% to 45% of the total herbicides used in 1996 to 2006, respectively. HRIs demonstrated that herbicides used in 2006, are on average, more soluble, but less persistent, less volatile, and less acutely toxic to mammals (inhalation and acceptable daily intake), aquatic invertebrates, fish and algae, than those applied in 1996. Although 2,4-D remains one of the top 10 herbicides applied to agricultural crops in Manitoba, there were no significant increasing or decreasing trends in 2,4-D use between 1996 and 2006. Results from the experimental studies revealed that 2,4-D mineralization half-lives (DT50) in soil varied from 3 days to 51 days with the total 2,4-D mineralization (MT) ranging from 5.8 to 50.9%, depending on soil moisture, temperature, slope position, and depth. Both DT50 and MT demonstrated a polynomial relationship with temperature, typical of a biological system with minimum, optimum, and maximum temperatures.
194

Connecting watershed and land use planning in Manitoba: exploring the potential of collaboration as a form of integration

Beukens, Robin 28 January 2013 (has links)
Watershed planning and land use development planning are two different planning processes dealing with many of the same water and land resources. Watershed planning is conducted on watershed boundaries; land use development plans focus on municipal or planning district boundaries. It is important that these plans are properly integrated so they are mutually supportive of one another. This study focuses on Manitoba, where land and water issues include potential floods and droughts, poor water quality in major lakes, and the need to protect drinking water for human use. The severity of these issues could increase in the future as Manitoba is projected to experience climate change that will further impact water and land resources in the province. The research explores different modes of integration, finding that collaboration is valuable in some circumstances in terms of maximizing collective resources, but that it is important to build upon strong cooperation and coordination. Results indicate that land use planners have a role to play in watershed management, using both technical and soft skills to protect watershed health through land use planning tools and plans. Watershed management planning and land use planning integration in other Canadian provinces is explored. The study concludes with a conceptual framework for integrating watershed and land use plans, as well as recommendations for improving integration in Manitoba, including: ongoing public education, pooling existing resources, more collaboration between watershed and land use planners, consideration of future water-related land use regulatory authority for watershed-based organizations, establishing clear responsibility for ensuring integration, continued learning by doing, creating a guiding framework for integrating watershed plans and land use plans, and using an adaptive management approach in both planning processes.
195

Breathing Life Into the Stone Fort Treaty

Craft, Aimee 03 1900 (has links)
This dissertation will demonstrate that, by considering Treaty One (1871) from the perspective of the Anishinabe, especially Anishinabe laws or Anishinabe inaakonigwein and normative expectations, one can obtain a better understanding of why there is a discrepancy in interpretations of the treaty. The research draws on practices of treaty making prior to Treaty One and shows that the parties relied extensively on Anishinabe protocols and procedural laws in the context of the Treaty One negotiations. In addition, kinship relationships, the obligations derived from them, and a sense of the sacred obligations involved in treaty-making, informed the agreement that was made between the parties. In particular, the kinship between a mother and child was invoked by the parties; the Crown negotiators relying on it primarily to secure good terms with the Anishinabe and the Anishinabe advocating for a commitment to ensuring a good life while respecting and preserving their autonomy. The exploration of the historical records of the negotiations and the oral history surrounding the treaty help draw out the differing and sometimes competing understandings of the treaty, many of which continue to this day, and in particular in relation to the effect of the treaty agreement on legal relationships to land. They help illuminate questions regarding the interpretation of the Treaty, including what would be necessary in order to implement it in accordance with its signatories’ understandings. / Graduate / 0398, 0740
196

Public/Private Construction: The Photographic Album of Nellie L. McClung

Wilson, Lara Jane 12 November 2013 (has links)
The album of Nellie Letitia Mooney McClung (1873-1951) is housed in the British Columbia Archives' Visual Records and is the only photographic album in the McClung Papers. This thesis proposes to contextualize the album within women's photographic history in general, and McClung's photographic practice in particular. The following points will be argued: first, photo albums are complex socio-historical documents which provide insight into gender and class constructions; second, late nineteenth and early twentieth century album-making was considered a female pursuit linked to the domestic sphere; third, the Nellie McClung album dates primarily from 1896-1911, the years McClung lived with her husband, Wesley, and children in Manitou, Manitoba; and fourth, I propose that a number of the album's photos are not only private mementos, but also public documents, having been used or considered as illustrations and advertisements for works written by or about Nellie McClung in these years. / Graduate / 0377 / 0334
197

Kaa-tipeyimishoyaahk - ‘We are those who own ourselves’: a political history of Métis self-determination in the North-West, 1830-1870

Gaudry, Adam James Patrick 13 February 2014 (has links)
This dissertation offers an analysis of the history of Métis political thought in the nineteenth century and its role in the anti-colonial resistances to Canada’s and Hudson’s Bay Company governance. Utilizing the Michif concepts of kaa-tipeyimishoyaahk and wahkohtowin to shed light on Métis political practices, this work argues that the Métis people had established themselves as an independent Indigenous people in the nineteenth century North West. By use of a common language of prairie diplomacy, Métis had situated themselves as a close “relation” of the Hudson’s Bay Company, but still politically independent of it. Nineteenth century Métis had repeatedly demonstrated their independence from British institutions of justice and politics, and were equally insistent that Canadian institutions had no authority over them. When they did choose to form a diplomatic relationship with Canada, it was decidedly on Métis terms. In 1869-1870, after repelling a Canadian official who was intended to establish Canadian authority over the North-West, the Métis formed a provisional government with their Halfbreed cousins to enter into negotiations with Canada to establish a confederal treaty relationship. The Provisional Government of Assiniboia then sent delegates to Ottawa to negotiate “the Manitoba Treaty,” a bilateral constitutional document that created a new province of Manitoba, that would contain a Métis/Halfbreed majority, as well as very specific territorial, political, social, cultural, and economic protections that would safeguard the Métis and Halfbreed controlled future of Manitoba. This agreement was embodied only partially in the oft-cited Manitoba Act, as several key elements of the agreement were oral negotiations that were later to be institutionalized by the Canadian cabinet, although were only ever partially implemented. These protections included restrictions on the sale of the 1.4 million acre Métis/Halfbreed land reserve, a commitment to establish a Métis/Halfbreed controlled upper-house in the new Manitoba legislature, a temporary limitation of the franchise to current residents of the North West, and restrictions on Canadian immigration to the new province until Métis lands were properly distributed. While these key components of the Manitoba Treaty were not included in the Manitoba Act, they remain a binding part of the agreement, and thus, an unfulfilled obligation borne by the contemporary government of Canada. Without adhering to Canada’s treaty with the Métis people, its presence on Métis lands, and jurisdiction over Métis people is highly suspect. Only by returning to the original agreement embodied by the Manitoba Act can Canada claim any legitimacy on Métis territories or any functional political relationship with the Métis people. / Graduate / 0740 / 0334 / adam.gaudry@usask.ca
198

the non-market valuation of wetland restoration and retention in Manitoba

Pattison, John Karl 11 1900 (has links)
Wetland loss is a concern in Canada, with significant loss in urban and agricultural areas. Due to their provision of ecological goods and services - water quality improvement, carbon sequestration, flood and erosion control and biodiversity - wetlands are an important natural resource to conserve. A stated preference CVM survey was designed to estimate the non-market values of wetland in the prairie pothole region of Manitoba. This included information on benefits and costs associated with wetland restoration, a referendum portion and a debriefing section. A rigorous design procedure was followed that included several public focus groups and pre-tests. Results from 1,980 individuals indicate that respondents are willing to pay to retain and restore wetlands. Conservative willingness to pay estimates placed between $290 (retention) and $360 (full restoration) per household per year. Aggregated to the entire province over a five year period, this increases to approximately $600 and $730 million, respectively. / Agricultural and Resource Economics
199

"La terre promise : migration de France vers Notre-Dame-de-Lourdes et Saint-Claude, Manitoba, 1890-1914" /

Pyée, Audrey. January 2005 (has links)
Thesis (Ph.D.)--York University, 2005. Graduate Programme in History. / Typescript. Includes bibliographical references (leaves 382-415). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:NR19818
200

Placement, timing and source of nitrogen fertilizer on yield of irrigated Russet Burbank Potato in Manitoba

Shaw, William 09 January 2016 (has links)
Efficacious timing and rate of synthetic fertilizer nitrogen (N) application can reduce the amount of N needed to be applied for potato production. The purpose of this study was to compare combinations of source, timing, and application methods of different synthetic N fertilizers on yield and quality of irrigated Russet Burbank, processing potato in Manitoba. Source, timing, and application method combinations were examined to provide a range of N availability over the growing season. This study was conducted at two sites over two years. Split applications of granular urea or Super-U, addition of ESN at planting and split application of granular urea at planting and fertigation were the most consistent treatments for highest marketable yield and nitrogen use efficiency. ESN was advantageous in wet site conditions. The results indicate split application of granular urea and split granular urea and fertigation that growers of processing irrigated potato primarily use in Manitoba are sound management practices. / February 2016

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