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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.
271

Views on collecting| Multiple meanings and perspectives surrounding Lower Colorado River Yuman women's beaded capes

Brooks, Katherine Elizabeth 01 January 2015 (has links)
<p> This study examines the tradition of beaded capes among the Lower Colorado River Yuman groups, with the goal of understanding the meaning and cultural significance that the capes held in the past and continue to hold for those that wear and create them today. Questions posed by this study ask how and to whom do beaded capes hold meaning; and why were the beaded capes overlooked by collectors if they are culturally significant? As a marker of River Yuman identity and artistic expertise, the lack of historic beaded capes that are held within museum collections is surprising, with only twenty-two museums across the United States and Europe housing a composite total of fifty-eight River Yuman beaded capes. This study attempts to answer the proposed questions by conducting interviews with River Yuman beadworkers and community members, regarding their perspectives on the meanings and symbolism presented by beaded capes, and the cultural significance of these items. In contrast, this study examines the views of Euro-American collectors that were collecting beaded capes in the late 19<sup>th</sup> and early 20<sup>th</sup> centuries when others were not. An understanding of outsider perspectives and motivation for collecting beaded capes is achieved through analysis of collector's field notes, journals, and museum accession files. Combining ethnography, archival research, and museum collections-based research, this study seeks to present a more detailed understanding of the River Yuman beaded cape as a marker of gender and ethnic identity. This research addresses the existing voids in knowledge about the cultural significance that the beaded capes hold for Quechan (Yuma) and Pipa Aha Macav (Mojave) people, and introduces that information to outsiders, creating a record of the views of River Yuman community members on the contemporary meanings that the beaded capes hold.</p>
272

"Unsettling" the Bear River Massacre| A Transformative Learning and Action Project Utilizing Indigenous Worldviews and Ceremonial Elements

Brown, Crete 11 February 2014 (has links)
<p> Grounded in the transformative paradigm (p. 35), this study asked, &ldquo;In what ways might a group of non-Natives be individually and socially transformed by encountering the Bear River Massacre from within Indigenous Worldviews?&rdquo; The methodology incorporated Indigenous Worldviews and ceremonial processes (Wilson, 2008) into Queensland University&rsquo;s Indigenous Australian Studies&rsquo; model (Mackinlay &amp; Barney, 2010), interweaving transformative learning processes with Indigenous elements such as a traditional Shoshone sweat lodge, visiting a massacre site, and listening to a Shoshone elder. During ceremonially centered mini retreats data was collected via individual journals, group email and process notes, art-based expressions, videotaping, individual and group written evaluations and surveys, and follow up interviews. Findings established &ldquo;perspective transformation&rdquo; (King, 2009) in 80% of participants within the dimensions of better understanding the Bear River Massacre, the Shoshone people, the colonization process, and the loss of their own Indigenous roots. Follow-up interviews revealed that 87.5% of respondents believed that the integration of Indigenous elements into the project impacted their learning experience &ldquo;a great deal.&rdquo; 87.5% reported sustained behavioral x change in relation to the topic and 71% stated they wanted to get to know Native people and culture better. In addition, 43% stated they were interested in obtaining a public Presidential apology to Native people. Unconscious shadow transference material (Romanyshyn, 2007) emerged and was discussed from a depth psychology perspective. Limitations to this study include sample size and lack of funding. The theoretical development of ceremonial research potentially expands this method into other areas of inquiry.</p>
273

The im/possibility of recovery in Native North American literatures

Van Styvendale, Nancy 06 1900 (has links)
Recovery is a ubiquitous theme in Native North American literature, as well as a repeated topic in the criticism on this literature, but the particulars of its meaning, mechanics, and ideological implications have yet to be explored by critics in any detail. Other than natural/ized telos, what precisely is recovery as it is constructed in Native literature? How might we describe the recovered subject(s) of this literature? To what ends is recovery, as both literary genre and discourse of Native identity, enacted and re-enacted? The Im/possibility of Recovery in Native North American Literatures explores classic and counter recovery narratives, a genre the study coins, and highlights how recovery, defined as homecoming by the genre, is characteristically im/possible. Providing in depth readings of four representative recovery narratives, Jeannette Armstrongs Slash, Sherman Alexies Indian Killer, Tomson Highways Kiss of the Fur Queen, and Joseph Boydens Three Day Road, as well as an overall survey of the recovery narrative tradition, Im/possibility argues that recovery is re-formulated through its melancholic introjection of those for whom recovery is impossible. The study is divided into four main sections: the first explores the historical production of recovery as literary tradition in the late 1960s and 70s in the wake of termination and relocation policies in Canada and the United States. The second section brings together trauma theory rooted in Holocaust Studies with indigenous literary articulations of the trauma of displacement to argue that recovery narratives craft a distinctly Native North American understanding of trauma as trans/historical. The third section turns to the question of agency, re-evaluating the subversive potential of colonial discourses of subjection. Rather than continuing to perceive such discourses as repressive of authentic Native identities, Im/possibility uses poststructuralist analyses of subject formation to focus on the productive aspects of subjectification. The final section fleshes out recoverys mechanics, the way recovery works--that is, both operates and succeeds--returning via a psychoanalytic analysis of discourse to theorize its melancholic composition. / English
274

Fishways and freshwater fish migration on South-Eastern Australia.

Mallen-Cooper, Martin January 1996 (has links)
University of Technology, Sydney. Faculty of Science. / In the last 100 years there have been dramatic declines in the range and abundance of native freshwater fish in south-eastern Australia. These declines have been attributed to habitat loss and degradation (including river regulation, water quality, erosion/siltation, instream cover and riparian vegetation), alien fish species, overfishing, and the obstruction of fish passage. In south-eastern Australia there are 86 species of freshwater fish and 36 of these have some migratory component of their life history that requires free passage along streams. The migrations of these fish in this region have been inhibited or prevented by the existence of more than 1500 dams and weirs. To mitigate this impact there are only 69 fishways. Most of these fishways are based on designs suitable for the swimming ability and behaviour of salmonids from the Northern Hemisphere. There are, however, no native salmonids in Australia. I assessed one of these salmonid fishways, at Euston on the Murray River, for its suitability for passing native fish. Fish were trapped at the top and bottom of the fishway over eight paired days. Although this fishway has one of the lowest slopes of the older fishways, and therefore potentially one of the easiest to ascend, very few of the fish that entered the fishway could get to the top. For example, 777 +/- 238 [x +/- s.e.] golden perch (Macquaria ambigua) per day entered the fishway but only 4 +/- 2 per day were collected at the top of the fishway. This and other data highlighted two points: i) the ineffectiveness of the salmonid-type fishways for native fish; and ii) assessing fishways by counting fish at the top only, although widely used throughout the world, is insufficient to assess the performance of a fishway. Counts of fish from the top of a fishway can, however, be useful to monitor fish populations over time. An excellent example of this is provided by long-term monitoring of the Euston fishway, which shows massive declines in the upstream movements of silver perch (Bidyanus bidyanus), Murray cod (Maccullochella peelii peelii) and Macquarie perch (Macquaria australasica) between 1940-45 and 1987-90, indicating corresponding declines in the populations of these species. The failure of salmonid fishways for non-salmonid fishes has been a common experience throughout the world. It stems partly from a lack of knowledge of the migratory patterns of non-salmonid fish, and from a lack of quantitative experimental research into the swimming ability and behaviour of these fish in fishways. To redress this situation for south-eastern Australia, I tested fish in experimental fishways in a hydraulics laboratory. The fishway design tested was the vertical-slot fishway, which is a pool-type fishway where water flows between each pool via a vertical slot. The design was considered to potentially suit the hydrology of Australian rivers and the behaviour of native fish. For these experiments I selected fish species and life stages representative of the migratory fish fauna of the two major drainages of south-eastern Australia. For the south-eastern coastal rivers I chose juvenile Australian bass (Macquaria novemaculeata)[mean lengths of 40, 64 and 93 mm] and barramundi (Lates calcarifer) [43 mm]. These two species are catadromous, with the adults migrating downstream to the estuary to breed and the juveniles migrating upstream. For the large inland Murray-Darling river system I chose adult golden perch (Macquaria ambigua) [441 mm] and silver perch(Bidyanus bidyanus) [258 mm]. At the beginning of this study, adults of these two species were considered to be the main life stage migrating upstream. In the laboratory experiments fish were tested at different water velocities and probit analysis was applied to the proportion of fish that negotiated these velocities. I used this approach to produce values which I called the NV90 and the NV95, which are the maximum water velocities that 90% and 95% of the fish could negotiate in the fishway. For bass, barramundi and golden perch these values ranged from 0.7 to 1.8 m s-1. These values are well below the standard maximum water velocity for salmonid fishways of 2.4 m s-l. The silver perch results were too variable to analyse. The data obtained from the laboratory experiments were used by water resource agencies to build eight new vertical-slot fishways in coastal and inland rivers of southeastern Australia. One of the largest of these new fishways was at Torrumbarry Weir on the Murray River, which consists of 38 pools, each 3 m long, ascending a 6.5 m high weir. The fishway, if successful, would provide access to 350 km of habitat above the weir. To determine whether or not the fishway was successful in passing native migratory fish it was assessed for 2.5 years by: i) sampling monthly above and below the fishway with a standard set of independent, replicated nets; and ii) sampling within the fishway. The netting showed that there were major aggregations of migratory fish below the weir when the fishway was not operational. However, when the fishway was completed and operational, 13 months after the commencement of sampling, there were no further major aggregations of migratory fish below the weir. These data, combined with high numbers of fish successfully ascending the fishway, indicated the success of this vertical-slot fishway design. It was estimated that from February 1991 to June 1993 20,7 14 native fish and 16,595 alien fish (all carp [Cyprinus carpio]) had successfully ascended the fishway. Sampling at the top and bottom of the fishway showed that the fishway passed almost all the species and sizes classes of native migratory fish, except for Australian smelt (Retropinna semoni). The latter is a small species 15 to 40 mm long that only entered the lower few pools of the fishway. The widespread distribution of this species indicates the migration is facultative. Experiments within the fishway showed that the laboratory experiments had underestimated swimming ability. However, it was discovered that fish still needed over 1.5 hours to ascend the full length of the fishway. In addition, some species only migrated upstream during daylight and if their ascent of the fishway was not completed in daylight the fish moved back down the fishway. I concluded that the original water velocity criterion from the laboratory experiments was appropriate and that future fishways need to consider ascent time and fishway length as well as water velocity. I also concluded that it is more difficult to obtain realistic results from 'off-site' experiments, where fish are transported to a laboratory or other facility, than from in situ experiments where naturally migrating fish are used and are not handled until the end of the experiment. Sampling at Torrumbarry Weir provided detailed information on the biology of the migratory fish species, which is essential to designing effective fishways. Carp(Cyprinus carpio), an introduced or alien species, and bony herring were newly identified as migratory, and golden perch and silver perch were confirmed as migratory. A major finding was that 95% of golden perch and 87% of silver perch moving upstream were immature fish. Previously the upstream movement of immature fish in this river system was considered insignificant. Fortunately the conservative water velocities in the Torrumbarry fishway accommodated these smaller fish(approximately 100 to 300 mm in length). The reason for the large numbers of immature fish migrating upstream is not clear, but it may be to optimise feeding, enhance colonisation, or to compensate for the downstream drift of the pelagic eggs and larvae. Migration of all species was seasonal. Spring, summer and early autumn were the main periods of upstream movement for native fish, and carp moved upstream in spring and early summer. Migration of carp was stimulated by rising water temperature only, but golden perch and silver perch were stimulated to move upstream by small changes in river levels. This small scale variation in streamflow is frequently suppressed by river regulation, and this is likely to have contributed to the significant decrease in the numbers of migrating native fish. Upstream migration of all species often occurred during low flows, as well as higher flows. This also occurs in coastal rivers of southeastern Australia. For both the coastal and inland rivers of this region it will be important to design fishways and environmental flow releases to accommodate this aspect of fish migration and the often semi-arid hydrology of these streams. Golden perch and silver perch were aged using sagittal otoliths and validated using known-age fish. The data showed that the immature fish were all over one year old, suggesting that younger fish are not migrating upstream. More research is needed to determine the location and habitats of the less than one year old fish. Ageing and examination of gonads indicated the size and age at maturity for these fish. This suggested that minimum size limits currently used to regulate the recreational fishery are not allowing fish to reach maturity. Golden perch and silver perch were found to be long-lived fish, up to 26 and 27 years respectively. Interestingly, samples of these two species from other rivers within the Murray-Darling river system show that the maximum sizes of these fish can vary significantly between rivers, suggesting that the ecology of different rivers within this large river system varies considerably. The development of fishways for non-salmonid fishes throughout the world has frequently met with failure. From the work in the present study and from reviewing other work I suggest there are five steps for the development of effective fishways. 1. Determine which fish species are migratory: - it is important to identify the smallest and largest fish that are migratory, as this affects the initial choice of the size of the fishway to test. 2. Test fish in an experimental fishway: - in situ experiments are recommended; - avoid handling of fish before and during experiments. 3 Design the fishway: - first decide on the location of the fishway entrance; - extrapolate research results with caution; - do not reduce pool sizes from the experimental model; - avoid tunnels; - design the fishway to operate over the full range of flows during which fish migrate. 4. Link the fishway with the operation of the dam or weir: - maintain flow and temperature regimes that stimulate migration; - manage flow releases over the spillway to guide fish to the fishway entrance. 5. Assess the fishway: - use quantitative and relevant performance criteria to assess the fishway and not only counts of fish from the top of the fishway. The most common strategy in the past has been to design the fishway and ignore steps 1, 2, 4 and 5. With fishways being increasingly recognised as important tools in the rehabilitation of aquatic biota in temperate river systems, and as a potential tool in the development of water resources in tropical rivers, it is essential that they are appropriately designed, constructed, and assessed. Otherwise the mistakes of the past will very likely be repeated.
275

Development and Ecology of Lignotuberous Seedlings in Mixed Species Dry Sclerophyll Forests in South Eastern Queensland

Buckmaster, J. Unknown Date (has links)
No description available.
276

Effects of mining disturbance on the ability of a Brown Kandosol soil to supply adequate phosphorus to re-establishing vegetation

Short, T. Unknown Date (has links)
No description available.
277

Fire and vegetation management in pasture lands of the Victoria River District, Northern Territory

Dyer, R. Unknown Date (has links)
No description available.
278

Comparative studies of the water use characteristics of native tree species growing on a rehabilitated mine site in the wet-dry sub-tropics of Queensland

Sanidad, W. B. Unknown Date (has links)
No description available.
279

Effects of mining disturbance on the ability of a Brown Kandosol soil to supply adequate phosphorus to re-establishing vegetation

Short, T. Unknown Date (has links)
No description available.
280

Breeding approaches to the horticultural improvement of the Australian daisy Rhodanthe anthemoides

Salmon, Alexander Unknown Date (has links) (PDF)
Experiments were conducted to evaluate the reproductive biology, cytology and phenology of the Australian everlasting daisy Rhodanthe anthemoides and related species. The principal objective was the development of new cultivars with novel bract colours and an assessment of intra-specific variation, mutation breeding and inter-specific hybridisation with R. diffusa, R. manglesii and R. chlorocephala subsp. rosea was carried out.R. anthemoides is a variable eastern state species and plants collected from the New England region of N.S.W have a chromosome number of 2n=22 as does R. diffusa. Other distinct morphological types of R.anthemoides, mostly from the Alpine regions of N.S.W, returned counts of 2n-22 indicating that this species is cytologically divergent and in need of botanical revision with the recognition of at least one new species.R. anthemoides is outbreeding and features a conspicuous involcure, protandry and long stigmatic papillae which aid in pollen presentation and favours insect pollination. The stigma in this species becomes receptive before it is fully exposed and remains receptive for at least 8 days. All of the above species are strongly self-compatible and in R. anthemoides the SI system functions by inhibiting pollen tube penetration of the stigma. (For complete abstract open document)

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