The experiments described in this thesis were designed to assess changes in pasture dynamics (biomass and species composition of pasture) of grazing land on the Southern Tablelands of ACT and NSW, after 16 combinations of rabbit control treatments had been applied. The rabbit control performed by CSIRO Division of Wildlife and Ecology consisted of all combinations of presence-absence of Poisoning (using sodium monofluoroacetate, 1080: POIS), Ripping (ripping warrens using a tractor fitted with ripping tynes: RIP), Fumigation (pressure fumigation using chloropicrin: FUM) and repeated follow-up fumigation (using phostoxin pellets one, six and eighteen months after completion of the initial treatment: ANN). The pasture was assessed before treatments were applied, and every six months after rabbit control treatments. Treatment combinations were assigned randomly in a 24 factorial design on a total of 32 sites. There was a significant increase of pasture biomass at the RIP+ANN treatment at post-treatment sample 5. The analysis of covariance did not detect any other significant increase or decrease of pasture biomass for any rabbit control treatment, at any posttreatment sample. A significant increase of grass species occurred for the treatments of POIS+RIP+FUM, POIS and RIP+ANN for the post-treatment samples of 1, 3 and 5 respectively. There was a significant increase of thistles at the rabbit control treatments of POIS+RIP+FUM+ANN (post-treatment sample 1), RIP, ANN, RIP+FUM, RIP+FUM+ANN and POIS+RIP+FUM+ANN (post-treatment sample 3) and RIP and FUM+ANN (post-treatment sample 5). A significant increase of weeds occurred at FUM (post-treatment sample 3) and at FUM+ANN (post-treatment sample 5). No significant changes in the amount of herbs or legumes was apparent for any rabbit control treatment or post-treatment sample. There were no significant decreases for any species group. Except for the significant results for post-treatment sample 1, all significant increases of biomass for any species group occurred during spring (post-treatment sample 3 and 5) which suggests a growth phase during spring then subsequent dieback (particularly for thistles and weeds), as any change was not detected in the following autumn sample. No strong trend is evident for any particular rabbit control treatments, or any combination of treatments. Analysis of covariance revealed that the rabbit control treatment of RIP+ANN showed significant increases in both total biomass of pasture and grass biomass during post-treatment sample 5. This treatment reduced the number of active entrances the most. Significant positive correlations were found between pasture biomass (total) with grass, herb, legume, thistle and weed species groups. Significant negative correlations between grass biomass and the number of active entrances were found when the rabbit control had been highly effective in reducing the number of active entrances. When rabbit control had not been very successful, there was a significant positive but low correlation with the number of active entrances. There was no significant relationship between the number of active entrances with the weight of rabbit dung pellets. It is reasoned that they are different measures of rabbit abundance. More rabbit dung pellets were found closer to the warren than further away from the warren, but there was no correlation between rabbit dung and pasture biomass. Rainfall was above average for most of the experiment, biomass increased accordingly, and rabbit control was highly successful. The resulting changes in the pasture were difficult to detect, although some increases in species composition groups occurred. It is reasoned that the changes observed are partly attributable to seasonal conditions, and to high rainfall. Grazing by domestic animals, sheep and cattle, had been found to be consistent throughout the experiment.

The cycling of biogenic volatile sulfur compounds (VSCs) within marine and terrestrial ecosystems has been shown to play an integral role in atmospheric chemistry; by influencing global climate change through the creation of cloud condensation nuclei and controlling acid-base chemistry; as well as influencing sediment chemistry including the interactions with trace metals, particularly regarding iron sulfide formation. Despite this, the examination of VSCs within Australian coastal acid sulfate soils (ASS) is an unexplored area of research. As ASS in Australia occupy an area in excess of 9 M ha, there is a clear need for a greater understanding of the cycling of these compounds within such systems. This thesis looks at the concentrations of several VSCs within agricultural and undisturbed ASS on the east coast of Australia. Initial measurements of sulfur dioxide (SO2) were made using passive diffusion samplers, which were followed by two detailed field-based studies looking at the concentrations and fluxes of both SO2 and hydrogen sulfide (H2S) using flux-gradient micrometeorological techniques. These novel results indicated that this agricultural ASS was a substantial source of atmospheric H2S (0.036-0.056 gSm-2yr-1), and SO2 (0.095-0.31 gSm-2yr-1), with flux values equating to many other salt- and freshwater marshes and swamps. The flux data also suggested that the ASS could be a continual source of H2S which is photo-oxidised during the daytime to SO2. Measurements of both compounds showed separate, inverse correlations to temperature and moisture meteorological parameters indicating possible contributing and / or causal release factors. Further identification of these and other VSCs within ASS samplers was undertaken in the laboratory using gas chromatography in combination with solid-phase microextraction. Although SO2 and H2S were not discovered within the headspace samples, two other VSCs important in atmospheric sulfur cycling and trace metal geochemistry were quantified; dimethylsulfide (DMS; &gt 300??g/L) and ethanethiol (ESH &gt 4??g/L). The measurements of H2S, DMS and ESH are the first quantifications with Australian ASS, and they may be important for refining regional or local atmospheric sulfur budgets, as well as interpreting previous SO2 emissions from ASS. Ultimately this thesis further enhances our understanding of the cycling of VSCs within acid sulfate systems.

Bibliography: p. 367-392. / xv, 392 p. : ill. (some col.), maps (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This thesis takes an overview of urban waste disposal practices in Sydney, Melbourne and Adelaide since the time of their respective settlement by Europeans through to the year 2000. The narrative identifies how such factors as the growth of representative government, the emergence of a bureaucracy, the visitation of bubonic plague, changed perceptions of risk, and the rise of the environmental movement, have directly influenced urban waste disposal outcomes. / Thesis (Ph.D.)--University of Adelaide, Dept. of Geographical and Environmental Studies, 2002

Alkalic porphyry style Au-Cu deposits of the Cadia district are associated with Late-Ordovician monzonite intrusions, which were emplaced during the final phase of Macquarie Arc magmatism at the end of the Benambran Orogeny. N-striking faults, including the curviplanar, northerly striking, moderately west-dipping basement thrust faults of the Cadiangullong system, developed early in the district history. NE-striking faults formed during rifting in the late Silurian. Subsequent E-W directed Siluro- Devonian extension followed by regional E-W shortening during the Devonian Tabberabberan Orogeny dismembered these intrusions, thereby superposing different levels porphyry Au-Cu systems as well as the host stratigraphy. During the late Silurian, the partially exhumed porphyry systems were buried beneath the Waugoola Group sedimentary cover sequence, which is generally preserved in the footwall of the Cadiangullong thrust fault system. The Waugoola Group is a typical rift-sag sequence, deposited initially in local fault-bounded basins which then transitioned to a gradually shallowing marine environment as local topography was overwhelmed. Basin geometry was controlled by pre-existing basement structures, which were subsequently inverted during the Devonian Tabberabberan Orogeny, offsetting the unconformity by up to 300m vertically. In the Waugoola Group cover, this shortening was accommodated via a complex network of minor detachments that strike parallel to major underlying basement faults. For this reason, faults and folds measured at the surface in the sedimentary cover can be used as a predictive tool to infer basement structures at depth.

Alkalic porphyry style Au-Cu deposits of the Cadia district are associated with Late-Ordovician monzonite intrusions, which were emplaced during the final phase of Macquarie Arc magmatism at the end of the Benambran Orogeny. N-striking faults, including the curviplanar, northerly striking, moderately west-dipping basement thrust faults of the Cadiangullong system, developed early in the district history. NE-striking faults formed during rifting in the late Silurian. Subsequent E-W directed Siluro- Devonian extension followed by regional E-W shortening during the Devonian Tabberabberan Orogeny dismembered these intrusions, thereby superposing different levels porphyry Au-Cu systems as well as the host stratigraphy. During the late Silurian, the partially exhumed porphyry systems were buried beneath the Waugoola Group sedimentary cover sequence, which is generally preserved in the footwall of the Cadiangullong thrust fault system. The Waugoola Group is a typical rift-sag sequence, deposited initially in local fault-bounded basins which then transitioned to a gradually shallowing marine environment as local topography was overwhelmed. Basin geometry was controlled by pre-existing basement structures, which were subsequently inverted during the Devonian Tabberabberan Orogeny, offsetting the unconformity by up to 300m vertically. In the Waugoola Group cover, this shortening was accommodated via a complex network of minor detachments that strike parallel to major underlying basement faults. For this reason, faults and folds measured at the surface in the sedimentary cover can be used as a predictive tool to infer basement structures at depth.

This thesis takes the Sydney 2002 Gay Games: Under New Skies �02, as a case study into the production of global queer citizenship. In the existing body of work around the Gay Games they are analysed as an international gay and lesbian sporting event (Cramer, 1996; Krane et al., 2001; Pronger, 2000; Waitt, 2005), as a gay and lesbian community event (Krane & Waldron, 2000; Symons, 2002, 2004; Waitt, 2003, 2006), and as a cultural site where discourses of nationality, sport and sexuality converge (Miller, 2001; Probyn, 2000; Rowe et al., 2006; Stevenson et al., 2005; Waitt, 2005; Waitt & Markwell, 2006). This thesis builds on these investigations, asking specific questions about the ways in which discourses of sexuality and citizenship are produced and governed within and across the Sydney 2002 Gay Games promotional and media materials. The analysis is guided by Michel Foucault�s notion of governmentality (1991) and the works of related theorists who map the disparate array of neoliberal mechanisms of government that �conduct the conduct� and �act on the actions� of individuals and certain populations (Bratich et al., 2003; Gordon, 1991; Larner, 2000; Larner & Walters, 2002, 2004; Miller, 1993; Rabinow & Rose, 2003; Rose, 1996a, 1999). The analysis begins by asking how discourses of the autonomous, neo-liberal subject converge with discourses of �global living� such that individuals are invited to imagine themselves as increasingly flexible, freedom-loving (Rose, 1999), self-assured, cosmopolitan global citizens. The idea of the global imagination is then used to explore the ways in which the Gay Games commitment to �total inclusion� and its promise of personal and community transformation rely on similar neo-liberal renderings of tbe subject. It argues that the event�s �political� promises not only normalise certain forms of identity-based consumption (Chasin, 2000), they also (re)produce and normalise a very entrepreneurial, western-centric, cosmopolitan �brand� of global queer citizenship. The thesis also emphasises the important role that images and image-related technologies played in upholding normative meanings around queer sexuality and queer citizenship at the Games. In doing so, the thesis argues that images and technologies do more than simply represent individuals� lived experiences. Images, it argues, are (inter)active entities that produce and shape individuals� understanding of the �real� and how they come to know themselves as certain types of subjects. Where the Sydney 2002 Gay Games were concerned, images were integral in producing normative meanings around gender, sexuality and citizenship and in governing participants� experiences as �locals�, �global visitors�, �athletes�, �cultural participants� and consumers.

When the Human Rights and Equal Opportunities Commission tabled Bringing them home, its report into the separation of indigenous children from their families, it was criticised for failing to consider Indigenous child welfare within the context of contemporary standards. Non-Indigenous people who had experienced out-of-home care also questioned why their stories were not recognised. This thesis addresses those concerns, examining the origins and history of the welfare systems of NSW and Tasmania between 1880 and 1940. Tasmania, which had no specific policies on race or Indigenous children, provides fruitful ground for comparison with NSW, which had separate welfare systems for children defined as Indigenous and non-Indigenous. This thesis draws on the records of these systems to examine the gaps between ideology and policy and practice. The development of welfare systems was uneven, but there are clear trends. In the years 1880 to 1940 non-Indigenous welfare systems placed their faith in boarding-out (fostering) as the most humane method of caring for neglected and destitute children, although institutions and juvenile apprenticeship were never supplanted by fostering. Concepts of child welfare shifted from charity to welfare; that is, from simple removal to social interventions that would assist children's reform. These included education, and techniques to enlist the support of the child's family in its reform. The numbers of non-Indigenous children taken into care were reduced by economic and environmental measures, such as payments to single mothers. The NSW Aborigines Protection Board dismissed boarding-out as an option for Indigenous children and applied older methods, of institutionalisation and apprenticeship, to children it removed from reserves. As non-Indigenous welfare systems in both states were refined, the Protection Board clung to its original methods. It focussed on older children, whilst allowing reserves to deteriorate, and reducing the rights of Aboriginal people. This cannot simply be explained by race, for Tasmania did not adopt the same response. This study shows that the policies of the Aborigines Protection Board were not consonant with wider standards in child welfare of the time. However, the common thread between Indigenous and non-Indigenous child removal was the longing of children and their families for each other.

The cycling of biogenic volatile sulfur compounds (VSCs) within marine and terrestrial ecosystems has been shown to play an integral role in atmospheric chemistry; by influencing global climate change through the creation of cloud condensation nuclei and controlling acid-base chemistry; as well as influencing sediment chemistry including the interactions with trace metals, particularly regarding iron sulfide formation. Despite this, the examination of VSCs within Australian coastal acid sulfate soils (ASS) is an unexplored area of research. As ASS in Australia occupy an area in excess of 9 M ha, there is a clear need for a greater understanding of the cycling of these compounds within such systems. This thesis looks at the concentrations of several VSCs within agricultural and undisturbed ASS on the east coast of Australia. Initial measurements of sulfur dioxide (SO2) were made using passive diffusion samplers, which were followed by two detailed field-based studies looking at the concentrations and fluxes of both SO2 and hydrogen sulfide (H2S) using flux-gradient micrometeorological techniques. These novel results indicated that this agricultural ASS was a substantial source of atmospheric H2S (0.036-0.056 gSm-2yr-1), and SO2 (0.095-0.31 gSm-2yr-1), with flux values equating to many other salt- and freshwater marshes and swamps. The flux data also suggested that the ASS could be a continual source of H2S which is photo-oxidised during the daytime to SO2. Measurements of both compounds showed separate, inverse correlations to temperature and moisture meteorological parameters indicating possible contributing and / or causal release factors. Further identification of these and other VSCs within ASS samplers was undertaken in the laboratory using gas chromatography in combination with solid-phase microextraction. Although SO2 and H2S were not discovered within the headspace samples, two other VSCs important in atmospheric sulfur cycling and trace metal geochemistry were quantified; dimethylsulfide (DMS; &gt 300??g/L) and ethanethiol (ESH &gt 4??g/L). The measurements of H2S, DMS and ESH are the first quantifications with Australian ASS, and they may be important for refining regional or local atmospheric sulfur budgets, as well as interpreting previous SO2 emissions from ASS. Ultimately this thesis further enhances our understanding of the cycling of VSCs within acid sulfate systems.

Housing, while a necessity of ???life???, goes beyond this definition in this research to also become a technology of government in the domestic distributional geopolitics of nation-states. Employing a Foucaultian approach to power and governance, this research examines how the provision of housing assistance was used in the government of rural public housing communities. Data for this research were collected through a series of archival resources that focused specifically on the transitional periods of 1935-1955 and 1985-2005. Data were also gathered through a questionnaire and interviews with public housing tenants and staff from four towns (Griffith, Cootamundra, Junee and Tumut) in the ???Riverina??? region of south-western New South Wales (NSW), Australia. This research makes five contributions to geographical understandings of distributional politics. First, the thesis contends that poststructuralist theoretical approaches to the analysis of power and governance enable innovative critical engagements with the distributional geopolitical agendas of governmental processes. The research also found that the distributional geopolitical agendas of Governments have been pursued through more than just the redistribution of fiscal resources, but also include the redistribution of human resources. In particular, housing assistance has been, and is used today, to perpetuate certain internal migration patterns to aid this human-distributional agenda. Third, the study argues that ??? while the broad shift to advanced liberal forms of government have resulted in changes to how distributional geopolitical agendas are pursued ??? ???distribution??? remains an integral feature of the geopolitical objectives of those who seek to govern in advanced liberal ways. This work also shows how these new advanced liberal distributional objectives remain open to being problematised and/or resisted at the local scale. However, while such governmental processes are always uncertain and open to contestation, these changes have brought about a new set of ethical and political consequences. We need to be alert to and critical of the ways in which these new distributional geopolitical agendas impact on our own and others??? ???freedoms???.

The monitoring and assessment of prawn populations in New South Wales (NSW), Australia, has been identified as a continuing research priority by both the fishing industry and the fisheries managers. This dissertation presents a series of dynamic population models developed to evaluate the status of the eastern king prawn (Melicertus plebejus) and eastern school prawn (Metapenaeus macleayi) populations within NSW and to analyse the relative performance of a number of alternative management strategies involving the three fisheries that target these species. Monthly commercial prawn catch and effort data from 1984 to 2006 were used to calibrate the stock assessment models. Where possible, the results of previous research were used to develop the structure of the model and to provide estimates of biological parameters. A process of increasing model complexity, including the addition of physical processes, such as river discharge events and economic considerations, was undertaken in an attempt to develop the most appropriate model for the analysis of management strategies. The first model presented was used to undertake a single-species assessment of the eastern king prawn stock and was based on a delay-difference population model with four different representations of recruitment. This model was calibrated to observations using the Bayesian sampling/importance re-sampling method and used to test the effect of significant changes in the future catch on the stock. The second model presented is a size-based metapopulation model which incorporated the dynamics of school prawns over three habitats, being harvested by three different fishing methods. This model was used to test the effect of alternative climate variability scenarios on the stock. The third model presented is a multi-species, multi-fishery bio-economic model. This model was used to examine the impact of nine alternative economic scenarios, incorporating various combinations of input costs and product prices. The results from the use of these models indicated that neither of the prawn population appeared to be over-exploited. The analyses also indicated that none of the alternative management strategies were found to stand-out enough to justify a move away from the current management strategy of input controls and spatio-temporal closures, even under a range of future scenarios including climate change and large movements in input costs and product prices.