The present study analyzed the evolutionary history of Erigeron trifidus Hook. by addressing two main questions: 1) Is the current hypothesis of the origin of the species by hybridization between E.compositus and E.lanatus supported by molecular data? and 2)Is the species monophyletic? An analysis of uni-and-biparentally inherited molecular markers from three species throughout the range of E.trifidus yielded data that supports the hybridization hypothesis. First, a restriction site analysis of cpDNA revealed 4 haplotypes. In most cases, cpDNA haplotypes were the same as in E.lanatus, suggesting E.lanatus as the maternal parent. Sequencing and cloning the nuclear ETS region revealed the presence of multiple repeat types in most individuals sampled. This further supports the hybrid origin hypothesis in that E.trifidus contained only repeat types present in one or the other of the putative parents. In addition, E.trifidus displayed the highest percentage of intrainidividual repeat type polymorphism, a common trait of hybrid species. Erigeron trifidus populations collected in the northern region appear to be monophyletic as they all exhibited a particular pattern of repeat type variation, a pattern absent in Ram Mountain and Waterton Lakes National Park populations. As E.lanatus has never been recorded from Ram Mountain, it is likely that the populations identified as E.trifidus are instead a different agamospermous variant of E.compositus. In Waterton Lakes National Park, populations of E.trifidus are thought to be the product of local hybridization but the identity of the putative parents remains uncertain. Therefore, E.trifidus is concluded to be polyphyletic. / viii, 66 leaves : ill. (some col.) ; 28 cm.

This thesis examines the intersections of visual culture with processes of folklorization in Maritime Canada between 1964 and 2007. Throughout this thesis, I explore how visual culture helps make history public in the Maritimes for local and tourist audiences alike. Ultimately, I question which visions succeed when it comes to looking at this “region’s” past in order to visualize its future. I outline chapters that consider how Nova Scotia’s first provincial gallery, the Art Gallery of Nova Scotia (AGNS), labelled the cultural production of local self-taught artists “folk” art and, by collecting these objects, became the foremost expert in a category of artistic expression it had itself created; how the provincial state ideologically and economically invested in a certain “folk” aesthetic by gathering objects under the authority of a few prominent collectors; how those institutions and collectors who sought to develop contemporary folk art for the art market also became concerned with the new confrontation of a global mass culture by the last few decades of the twentieth century; how the AGNS transformed self-taught artist Maud Lewis from a local tourist attraction in the 1960s into an internationally recognized cultural icon by the 1990s through the institutionalization of her life story’s public history; and how those with state and corporate authority came to brand the Maritimes for global tourism at the turn of the twenty-first century, by employing what they understood to be the region’s strongest cultural resources. Part of my rationale here is to explore what it means to label the cultural production of self-taught artists “folk” art and the implications of state and corporate investment in this cultural form for the public narrative associated with the experience of culture in Maritime Canada. I posit a complex hegemonic relationship here between relatively powerful artworld professionals and relatively powerless self-taught artists that speaks both to the inequities and contradictions of a capitalist liberal order. In doing so, I also tackle the broader implications of writing “the history of region” in an age of “global” analyses. / Thesis (Ph.D, Art History) -- Queen's University, 2009-09-25 13:45:16.05

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No description available.

<p>Provincial governors constituted an important part of the decentralization package unveiled in Zimbabwe in 1984 and 1985. The President appoints provincial governors among other duties, to coordinate development planning and implementation at the provincial level. This paper seeks to examine the appointment and role of a provincial governor and in that way establish the extent to which such appointment and role hinder or enhance representative and participatory democracy, accountability, devolution and empowerment, as ideals of decentralization. This contribution examines provincial governance in Zimbabwe as part of the local government system.</p>

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal

As the need to understand climate induced changes increases, so too does the need to understand the long-term spatial-temporal characteristics of snow cover and snow water equivalence (SWE). Snow cover and SWE are useful indicators of climate change. In this research, we combine methods from spatial statistics, geographic information systems (GIS), time-series analysis, ecosystems classification, cluster analysis, and remote sensing, to provide a unique perspective on the spatial-temporal interactions of SWE. We show that within the Canadian Prairies, extreme SWE are becoming more spatially constrained, and may cause some regions to be more prone to flooding. As well, we find that the temporal characteristics of SWE are not captured by current ecological management units, highlighting the need for Canadian ecological management units that consider winter conditions. We then address this need by developing methods designed to generate geographically distinct SWE regimes. These regimes are used to partition the landscape into winter-based management units, and compared with conventional summer based units. We find that regional variations in the ability of current ecological units to capture SWE characteristics exist, and suggest that SWE regimes generated as a result of this analysis should be used as guidelines for developing winter-based management units in conjunction with current ecological stratifications.

Thesis (Ph. D.)--Ohio State University, 2008. / Title from first page of PDF file. Includes bibliographical references (p. 168-184).

Thesis (D.Phil.)--University of Oxford, 2009. / Supervisor: Professor Alan Bowman. Bibliography: leaves 358-438.

Thesis (PH. D.)--Catholic University of America, 1931. / Vita. Description based on print version record. "Select bibliography": p. ix-xii.