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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.
121

Sediment-associated nutrients and their contribution to the nutrient loads of Devon catchments

Thornton, R. C. January 1985 (has links)
No description available.
122

Environmental factors relating to the ecology and distribution of some intertidal populations of the sedentary polychaete Sabella pavonina (Savigny 1820)

Tompsett, Pamela Elisabeth January 2003 (has links)
No description available.
123

The effects of storm events on the behavior of hydropsychid net-spinning caddisflies

Sobat, Thomas A. January 2007 (has links)
Physical disturbance in the form of storm events has been implicated as a major determinant of community structure in streams. But there has been limited study of this effect on individual taxa within the communities. Such work is needed because of untested assumptions regarding the behavior of bioindicator species in these systems. Development of intricate indices of insect tolerances to organic pollution have become commonplace in environmental monitoring. However, research on the effects of natural disturbance on biological water quality assessment is lacking. Hydropsychid caddisflies are relatively intolerant to organic pollution and the United States Environmental Protection Agency has outlined the use of these organisms and others as an indication of clean water. If a species is recorded as absent from samples when it is present but hidden, this false negative would bias the water quality assessment. I tested hypotheses regarding the behavior of hydropsychid caddisflies facing increased discharge, and the effect of stream size on the magnitude of this phenomenon.Three sites along the West Fork of the White River, Indiana USA were studied during nine storms between 2001 and 2004. Stratified sampling from the upper 15 cm of substrate prior to and just after a storm, and again following reestablishment of normal flow, revealed alterations of hydropsychid distributions. During storms all but one species sought refuge in the hyporheic zone at depths dependent upon storm intensity. The possibility that poor water quality resulting from increased discharge caused the hydropsychid behavior was refuted by chemical analysis. Family level biotic index (FBI) data demonstrated that increased discharge results in a reduction of stream FBI values. These results indicate that high intensity storm events influence biological monitoring and should be factored into sampling protocol. / Department of Biology
124

The Red River Resistance of 1869-1870: The Machiavellian Moment of the Métis of Manitoba

O'Toole, Darren 13 December 2010 (has links)
In October 1869, the fledgling Canadian federation was preparing for the transfer of Rupert's Land and the Northwestern Territory when the Métis set up a Provisional Government in order to resist what they saw as a unilateral annexation of their homeland. Although there were multiple references made to 'republicanism' during the Resistance, no scholar has ever explored whether republican conventions were actually present in political discourse in the District of Assiniboia prior to the Resistance and whether they were effectively activated during the Resistance. Working from the Cambridge School approach of discourse analysis, this thesis first identifies the conventions of democratic rhetorical republicanism, which includes positive and negative liberty, the rule of law, the mixed and balanced constitution and citizenship, which in turn involves virtue, the militia and real property. It then looks at the gradual introduction in Assiniboia of republican discourse from multiple sources, including the United States, Lower Canada, Upper Canada, Ireland, France and Great Britain and its circulation throughout several practical political struggles during the period from 1835 to 1869. In doing so, it shows that certain 'organic intellectuals' acted as 'transmission belts' of republican conventions and that institutional structures were a factor that rendered the activation of such conventions almost inevitable. By the time the Resistance took place in 1869, a more or less fully developed republican paradigm formed part of the linguistic matrix and was available to political actors in Assiniboia. Finally, the thesis shows that republican discourse was effectively mobilised by identifying fragments of republican conventions that were harnessed in various speechacts during the Resistance. It is argued that republican language was fundamental to the success of the ideological and political manoeuvres of the leaders of the Resistance as it was particularly effective both as an instrument of anti-colonialism and as a pragmatic ideal of self-government that sought to correct the iniquities of colonial government.
125

Retreat: an experiential guide to the Cheakamus

Thiel, Elisabeth M. 15 October 2010 (has links)
The purpose of this practicum is to explore the Cheakamus River from its beginning at Outlier Peak to its arrival at Howe Sound. I explored it in terms of its history, both geological and cultural; its uses both past and present; and in terms of ‘place’. I determined there had not been development in the area, due to geological instability and its unique location. I explored the place, its unique characteristics and its rarity. My exploration was through photography, writing and drawing. I explored the culture of the Cheakamus by looking at its role in the mythology of the First Nations People of the area. By looking at the notions of retreat, renewal, meditation and contemplation, I explored the stimmung, genus loci and zen of this river system. Finally, I made connections between the river and the land, highlighting the uniqueness of place.
126

The effects of coal mine closure on macroinvertebrate communities

Reynolds, Christopher David January 2001 (has links)
No description available.
127

Sub-fossil mollusca from Holocene overbank alluvium and other wet-ground contexts in Wessex

Davies, Paul January 1992 (has links)
No description available.
128

Non-navigational uses of the waters of international rivers : Rights of riparian states - extent and limits

Farooque, M. January 1988 (has links)
No description available.
129

Determining the significance of bank erosion in the supply of coarse material to meandering channels

Barker, Rachel January 2000 (has links)
No description available.
130

Aquatic macroinvertebrates and environmental quality in rivers in Northern Thailand

Mustow, Stephen Eric January 1997 (has links)
No description available.

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