The research reported in this thesis focuses on Late Cretaceous and Cenozoic fossil brachiopods of Western Australia. Although the work is primarily taxonomic, it also includes biodiversity, distribution and some aspects of ecology of the brachiopods described.The most recent information on the anatomy, physiology and ecology of brachiopods is summarised at the beginning of the thesis.Identification of brachiopods is determined primarily on internal morphological features as brachiopods tend to be homomorphic, many species looking externally the same. The morphological features used in the identification of the brachiopods described within the thesis are defined.The fossil material studied has come from four sedimentary basins in Western Australia. The Carnarvon Basin contains Late Cretaceous and Cenozoic fossil material. The Perth Basin also has Late Cretaceous and late Cenozoic brachiopods The Bremer and Eucla Basin have Cenozoic deposits. The stratigraphy of the deposits containing the brachiopods is described.Until this study commenced, eight species had been described from Western Australia. This thesis describes fifty eight species including thirty new species, one new family and two new genera.In preparing descriptions of the new species it become evident that many of the species from the Southern Hemisphere were quite different to those found in the Northern Hemisphere. Their closest affiliation was with genera and species described from the Antarctic Peninsula. Four genera and one species from the Late Cretaceous deposits of Western Australia are common to the Late Cretaceous deposits of the Antarctic Peninsula. In the examination of the Tertiary material from the Carnarvon Basin, it also became clear that there was a strong correlation with Tertiary material from the Antarctic Peninsula. At least four genera are common to both deposits. Six brachiopod ++ / genera from the Middle Miocene deposits of the South Shetland Islands Antarctica are common to New Zealand. Nine genera, identified from the La Meseta Formation, Seymour Island, Antarctic Peninsula, are also common to New Zealand. These genera are also found in Australia. This evidence has led to the proposal that in the Late Cretaceous there was a common shelf environment from the Antarctic Peninsula to the north-west coast of Western Australia. In this area, which formed the high latitude southern circum-Indo-Atlantic faunal province, brachiopods evolved different genera and species than those in the northern hemisphere. Many then dispersed into northern areas of the Indian, Atlantic and finally Pacific Oceans.When the material from the Middle to Late Eocene of the Bremer and Eucla Basin was examined, five genera were found to be common to the Early Tertiary of the Carnarvon Basin. When comparing the species from the south-western basins and those from the south- east it was evident that similar species occur in the Middle to Late Eocene of the Bremer, Eucla, St Vincent and Murray Basins. There are some fifteen species in common. Many of these species then occur in the Late Oligocene south-eastern basins near Victoria and Tasmania as the gap between the Australia mainland and Tasmania began to open. One species that occurs in the Late Eocene of Western Australia is also described from the Late Oligocene of New Zealand.In considering the distribution of the Cenozoic brachiopods, genera first appear in the north-west of Western Australia and they then appear in chronological order in the south-western basins and south-eastern basins of South Australia, then the south-eastern basins of Victoria and Tasmania and then New Zealand. By the Late Eocene, there was a shallow marine connection between the Bight and the Tasman Sea. By the Late Oligocene this had widened and ++ / Australia was finally totally separated from Antarctica.The Proto-Leeuwin Current was responsible for the distribution of the brachiopods from the north-west of Western Australia to the southern coast. Possible mechanisms for the distribution of genera to New Zealand include rafting and an extended larval stage.It has been suggested that brachiopods in Australia are distributed according to the substrate on which they settle rather than any other factor. Using the information on the distribution of brachiopods in Western Australia throughout the Cenozoic this hypothesis is examined. It is suggested that avoidance of light in the photic zone and food availability with competition with bivalves are more important factors than substrate conditions.

This research was undertaken to explore professional development in Western Australia secondary schools from the perspective of the classroom teacher. A study that bridged quantitative and qualitative methodology, it drew upon teachers' perspectives and reports of professional development activities in which they had been involved over an eighteen month period.The major focuses of the study were in exploring teachers' perceptions of their professional development activities across the following dimensions: choice, the influence of career stage, rationale for choice, equity in relation to access, levels of participation, gender factors, perceptions of effectiveness, influence of school/educational culture.The conceptual framework in this study (refer to Figure 2.1) acknowledges the teacher as the central point of reference due to his/her importance in the classroom as the architect of the learning experiences for students (Fogarty, 1999. Four aspects were identified as influences on teachers. These were professional development; factors affecting teachers' capacity to develop professionally; technological change in education; and the education system in which teachers work. Literature related to these four aspects was explored.The findings of this study, based upon in-depth interviews with teachers, indicated that the respondents were expending significant amounts of time engaged in professional development. Results demonstrated that half of the reported hours (150 hours/person/year) involved personally selected professional development. Teachers' rationale for choosing professional development was in order to become a more effective practitioner resulting in increased learning opportunities for their students. Effectiveness of professional development was predominantly related to the relevancy to teaching, level of interaction within the session, opportunities to ++ / obtain and discuss teaching materials, and the opportunities for reflection on their practices with colleagues.Career stage did indeed appear to influence teachers' choice of professional development, perceptions of effectiveness and quality, personal teaching philosophies, and perceptions of the school and educational culture. Less experienced teachers and those in the final career stage were more focused on increasing their repertoire of teaching strategies. Experienced teachers in the middle career stages were largely concerned with increasing subject knowledge, and expertise required to assist them in their additional duties other than teaching.Equity in accessing professional development was a distinct issue for rural teachers information technology teachers in this study. Information technology teachers reported experiencing frustration with the expense involved, and difficulties in accessing targeted professional development that catered to their specific requirements. Teachers situated in rural areas expressed concern with the lack of choice available to them in the rural situation. This was largely due to extensive travel time to the metropolitan area to attend specific programs, expense involved in accessing professional development and the lack of support by administration in their schools related to professional development.The teachers in this study displayed gender differences in relation to their perceptions and choices of professional development. Female teachers were generally more focused on professional development that directly related to their teaching whereas their male counterparts were overtly seeking professional development that would advance their career aspirations. Family commitments were more frequently cited by male respondents as the reason for non-attendance at out-of-hours professional development.School culture was acknowledged by ++ / teachers in this study as having an impact on professional development. Teachers resoundingly indicated they desired more self-determination in decision-making related to professional development. They expressed the perspective that the employer was demonstrating a lack of trust in teachers' professionalism and was not providing professional development to meet their teaching needs. It appeared that the professional development being provided was ad hoc and a more systematic approach was needed.As a result of this research a model of systematic professional development has been proposed that encompasses the expressed needs of teachers in this study, the literature on effective professional development to improve student learning, and the quality assurance and accountability mechanisms required by the employer.

Rapid reform in the vocational education and training sector within Australia has driven the need for a more flexible approach to the delivery of education and training. One facet of such flexibility is Open Learning. Currently there is little research on Open Learning within the training sector on which planning decisions can be based.A model of educational productivity (Walberg,1981) has been proposed in the research literature to investigate relationships between key factors such a student antecedents, learning environments and learning outcomes. The Walberg model has been employed in this current study to explore how these factors may be studied in an Open Learning environment and a more Traditional Learning environment within the vocational education and training sector. The research design is a comparative description, utilising techniques from both quantitative and qualitative paradigms.A major aspect of this current study has been to investigate the constructs proposed by Walberg's Productivity Model and source appropriate instruments to measure these constructs. Where the appropriate instruments were not available, a process of instrument development and validation was conducted.The research has identified Walberg's model as being a valid frame of reference within the Vocational Education and Training sector. As expected, significant differences between the Open Learning environment and the Traditional Learning environment were apparent for the measures of Classroom Environment. Of interest, however, was that the productivity factor of Quantity, for students studying in both learning environments, was shown to have a negative relationship with achievement. While small differences were apparent for other factors, generally, the relationship between productivity factors and educational achievement was seen to be similar for both the Open Learning and the ++ / Traditional Learning environments.The findings of the study should be of significance to a range of people involved in the Open Learning environment, including decision makers in the areas of educational policy, curriculum design and implementation, administration and teaching.

Aquatic polyculture has been recognised as a potential way of increasing the costeffectiveness of farming marron (Cherax tenuimanus), as it can lower average costs of production, increase system yields, and reduce economic risks associated with monoculture operations. Polyculture also increases ecological stability and assists recycling processes, which can result in synergistic benefits to participating species. In aquaculture, this synergism can result in increased profitability through advanced growth rates and/or reduced feed input. However, many of the inherent advantages of aquatic polyculture rely on cohabitants occupying distinct ecological niches within the system. In Western Australia, opportunities to multi-crop aquatic species are limited by species choice due to low natural diversity and strict translocation policies. This creates a situation where available aquaculture species exhibit overlaps in occupied niches. Effects of this overlap can include direct predation, increased intraspecific conflict, and competition for resources such as shelter and food. Prior to this study, silver perch (Bidyanus bidyanus) were identified as a prime candidate for duoculture with marron, based on favourable schooling and feeding characteristics, and preliminary trials demonstrated commercial benefits, including synergistic growth advantages to marron. However, investigations also showed that silver perch will predate on both small and moulting crayfish under certain conditions, and that growth of silver perch was inhibited when held in cages to prevent predation. The work reported in this thesis was undertaken to address the niche overlap existing between marron and silver perch, and therefore assist the marron industry in Western Australia in implementing appropriate management strategies for diversification. / Research focussed on investigating the ecological issues underlying interspecific interactions in marron polysystems, with the eventual aim of presenting information that could assist system managers in determining optimal conditions required to reduce antagonistic relationships and maximise synergism, ultimately leading to higher yields. Seven trials were conducted in three culture systems (54L aquaria, 250L aquaria and 720m2 experimental ponds) examining the ability of marron to detect, recognise and respond to a range of information cues (chemical, visual, tactile) from two potential predators (silver perch and Murray cod), with and without competition from conspecific and heterospecific crayfish (Cherax albidus). The ability of marron to interpret and respond appropriately to these variables was tested under a range of system-specific conditions, including stocking density, stocking size, shelter/habitat complexity, food availability, light intensity and life stage. Cage culture conditions were also examined to determine if the addition of shelter would mediate growth inhibition previously recorded, and to determine the desired stocking regime to return market sized fish in one growth season (8 months). Results from laboratory research and field-based trials did not support the free-range culture of marron and silver perch, even where turbidity and habitat complexity is high. Although both male and female marron (various sizes) demonstrated an ability to detect and differentiate between chemical and visual cues from potential predators, avoidance responses were only displayed upon attack from predators, or following predation of conspecifics; and avoidance strategies employed by marron were relatively ineffective. / Although marron showed some capacity to recognise an impending predatory threat, high initial mortalities and growth inhibition due to reduced foraging, would greatly reduce system yields. In addition, intraspecific competition between marron is likely to increase as avoidance responses would lead to high relative densities within shelters. The lack of avoidance behaviour displayed by marron when only visual and chemical cues from predators are present strongly supports cage culture of silver perch in marron ponds. As marron did not appear to alter their general behaviour (e.g. foraging) based on cues associated with silver perch held in cages they stand to benefit from cohabitation. Field-trials examining the pond culture of marron and caged silver perch demonstrated synergistic growth advantages to marron, compared to monoculture, and also identified several system variables that appear to improve polyculture production. The addition of bank shelters (within 1m of waters edge) was suggested to give marron a competitive advantage when moulting, expressed through growth and survival. Survival of marron was also increased in caged polyculture ponds, compared to monoculture, most likely due to increased health status (due to improved recycling) and/ or increased habitat complexity owing to the presence of fish cages. Growth inhibition previously reported when silver perch are held in cages was mediated to some degree by cage shelters, which appeared to increase feeding behaviour, reduce general anxiety and resulted in increased growth. The introduction of advanced silver perch fingerlings in order to produce market-sized fish in one growth season was also supported. However, it is recommended that cage culture dynamics require further elucidation if silver perch are to be commercially successful as a stand-alone crop using this growout strategy. / Significantly, the synergistic growth advantages experienced by marron when grown with fish demonstrate value from polyculture even if fish are not depended on as a secondary income. In this case, other species may also provide similar advantages, and a native candidate such as freshwater cobbler (Tandanus bostocki) would also redress problems associated with translocation laws restricting the use of silver perch in some areas of Western Australia. As no density effects were recorded in any of the trials conducted for either species, further investigation into increased system loads is required. In addition, as nutrient loads, and thus phytoplankton density, usually increases proportionately with pond biomass it is recommended that an additional herbivorous species, for example white eye mullet (Mugil cephalus), be examined in conjunction with increased density trials. Field research reported in this thesis was carried out in earthen ponds utilising remediated water from a acidified mine lake. Over a three-year period water quality parameters were maintained within optimal ranges for marron and silver perch, and survival and growth of both species was comparable to industry levels. These results validate the effectiveness of mine-water treatment technology; and accordingly, results support commercial viability of crayfish polyculture utilising remediated acid mine water. The large water resources offered by the numerous artificial lakes created from open cut mining has the potential to sustain a large successful aquaculture industry for Collie (Western Australia), and in other areas with extension of water treatment technology. / The incorporation of caged silver perch into marron ponds not only takes advantage of the inherent economic and risk-spreading benefits from a diversified management strategy, but also incorporates a number of within-system benefits due to synergism between species. The ecological approach to aquatic polyculture research reported in this thesis has elucidated key communication factors underlying interactions within crayfish polysystems, which is critical to a knowledge-based approach to system management.

The management of healthcare has changed dramatically over the past two decades. Such change has not just been in the way medicine is practiced, but also in the way the health dollar is spent. Hospitals have found themselves under constant and increasing pressure to not only reduce costs in relative terms, but also at the same time, provide new and expanded services. These pressures caused hospitals worldwide to closely examine the means by which they met the demands that were placed upon them (Royal Perth Hospital, 1994a; Asay and Maciariello, 1991). One common response was to embrace New Public Management strategies, such as devolved management. That is, to place the responsibility for managing diminishing health care resources, into the hands of those who use them the most - doctors (Chantler, 1993). To achieve this many hospitals adopted organisational structures known as clinical directorates (Chantler, 1993). Following international trends, the clinical directorate model was adopted by all of Western Australia’s public teaching hospitals in the mid 1990s. The belief was that by devolving hospital management to doctors, the clinical knowledge they possess will lead to improved clinical outcomes through the better allocation of resources. From the perceptions of Clinical Directors, Chief Executives, Nurse Managers, Business Managers and Department Heads, this research has developed a model, termed the Clinical Director Efficiency and Effectiveness (CD2E) model, that describes the dimensions of efficiency and effectiveness of Clinical Directors in the Western Australian public teaching hospital context. / The model proposes that there are three perceived dimensions of efficient and effective clinical directorship. They are: those that are brought to the role by doctors and governed by the health environment in which they develop (Domain Knowledge and Skills), those that are learned (Business Skills) and those that are innate (Personal Attributes). The three perceived dimensions consist of nine components. ‘Domain Knowledge and Skills’ comprise clinical expertise, peer influence, political expertise and environment knowledge. ‘Business Skills’ comprise financial management, strategic management and human resource management. ‘Personal Attributes’ comprise commitment and participation, and communication. The CD2E model not only describes the perceived dimensions of efficiency and effectiveness, it also outlines those dimensions that are brought to the role of a Clinical Director by the medical profession and those areas where there are perceived deficiencies. Whilst the final CD2E model can be used to assist in developing and selecting future Clinical Directors who are more appropriately equipped to improve healthcare delivery within Western Australia, the literature suggests that the model also has features which are common and applicable to other health environments.

Rhizanthella gardneri (Rogers) is a critically endangered orchid restricted to two isolated regions of south-western Australia. Rhizanthella gardneri is an entirely subterranean mycoheterotrophic species that purportedly forms a tripartite relationship with a mycorrhizal fungus (Ceratobasidiales) that links with an autotrophic shrub of the Melaleuca uncinata complex to acquire nutrients. Whether the rarity of R. gardneri is intrinsic is overshadowed by the recent effect of extrinsic factors that means R. gardneri requires some form of conservation and may also be a viable candidate for restoration. To create an integrated conservation strategy for R. gardneri, reasons for its decline and knowledge of its biological and ecological functioning must be elucidated. This thesis focuses on three key questions; 1) what are the habitat requirements and limitations to R. gardneri survival; 2) what is the identity and specificity of the fungus R. gardneri forms mycorrhizas with; and 3) does R. gardneri form a nutrient-sharing tripartite relationship with a mycorrhizal fungus and autotrophic shrub. Key climate, soil and vegetation characteristics of known R. gardneri habitats were quantified to provide baseline data for monitoring known R. gardneri populations, to better understand how R. gardneri interacts with its habitat, and to identify possible new sites for R. gardneri introduction. Habitats of the two known R. gardneri populations differed considerably in soil chemistry, Melaleuca structure and Melaleuca productivity. Individual sites within populations were relatively similar in all attributes measured while overall Northern and Southern habitats were distinct from each other. These results suggest that R. gardneri can tolerate a range of conditions and may be more widespread than previously thought, given that there are extensive areas of Melaleuca thickets with similar habitat characteristics across south-western Australia. The fungus forming mycorrhizas with R. gardneri was identified, using nuclear ribosomal DNA sequences, as a Rhizoctonia-type fungus within the Ceratobasidiales. All fungi isolated from R. gardneri individuals representative of its currently known distribution were genetically similar, suggesting R. gardneri is highly dependent on this specific fungal species. Given that R. gardneri appears to exclusively associate with a specific fungal species, species-specific molecular primers were designed and used to analyse the fungi’s presence in known and potential R. gardneri habitats. These results 6 suggest that the fungus exists beyond the known R. gardneri habitats and gives hope to finding new populations.

Research into seed biology and restoration ecology of areas disturbed by mining is crucial to their revegetation. Shark Bay Salt, a solar salt facility in the Shark Bay World Heritage Area in Western Australia has several areas of disturbance as a result of 'soil borrowing'. Soil from these areas termed 'borrow pits' was used to create infrastructure such as the roads and embankments surrounding the evaporation ponds. Many of the pits contain little to no vegetation after >10 years since disturbance ceased, hence research into their restoration is now essential. A vegetation survey at the site established the key species in the undisturbed vegetation, and investigated the vegetation in borrow pits subject to natural migration and topsoil replacement. The vegetation communities in the borrow pits were vastly different to those in the undisturbed vegetation, highlighting the need for research into revegetation. An investigation into the use of 'borrowed' topsoil on a small scale showed that seedling recruitment from 'borrowed' topsoil was generally similar in the donor site (natural vegetation) and the borrow pits. Due to the absence of topsoil for further revegetation, it was necessary to understand seed germination and dormancy characteristics to establish seed pre-treatments prior to seed broadcasting and seedling (greenstock) planting. An investigation into seed germination and dormancy characteristics of 18 common species revealed that most species germinated equally well at 26/13oC and 33/18oC, however seven species had improved performance at 26/13oC. Untreated seeds of seven species exhibited high germination. Seeds of two species had low imbibition, which increased with hot-water treatment, and hence require scarification for germination. Germination of seeds of three species substantially increased with gibberellic acid (GA3), smoke water (SW) and karrikinolide (KAR1, a butenolide isolated from smoke). Seeds of the remaining six species had low germination regardless of treatment. As a result, species were classified as likely to be non-dormant (44%), physiologically dormant (44%) or physically dormant (11%). Physiological dormancy of three species was at least partly alleviated by dry afterripening, whereby moisture content of seeds was adjusted to 13% or 50% equilibrium relative humidity and seeds were stored at 30oC or 45oC for several months. All iv after-ripening conditions increased germination percentage and rate of two species with one only germinating when treated with GA3 or KAR1. The germination of the third species was dependent on after-ripening temperature and seed moisture content.

Bibliography: leaves 526-532. A description of the grammar of Worora, a language from the north west Kimberley region of Western Australia, proceeds along pedagogical lines. Introducing the speakers of Worora and their history and society, and the nature of the land in which they used to live, as well as to the manner and circumstances in which this account came to be written; describing in outline six important lexical categories, essential to a basic understanding of the grammar.

This thesis provides a study of book publishing as it contributes to the production of a regional literature, using Western Australian publishing and literature as illustrative examples of this dynamic. 'Regional literature' is defined in this thesis as writing possessing cultural value that is specific to a region, although the writing may also have national and international value. An awareness of geographically and culturally diverse regions within the framework of the nation is shown to be derived from representations of these regions and their associated regional characteristics in the movies, television and books. In Australia, literature has been the primary site for expressions of regional difference. Therefore, this thesis analyses the impact of regionalism on the processes of book production and publication in Western Australia’s three major publishing houses— a trade publishing house (Fremantle Press), an Indigenous publishing house (Magabala Books), and an academic publishing house (University of Western Australia Press). Book history, print culture studies and publishing studies, along with literary studies and cultural studies, roughly approximate a disciplinary map of the types of research that constitute this thesis. By examining regional literature in the context of its 'field of cultural production', this thesis maintains that regionalism and regional literature can avail themselves of a fresh perspective that shows them to be anything but marginal or exclusive. Regionalism has been a topic of peripheral interest, at least as far as scholarly research and academia are concerned, because those who are most likely to be affected by and thus interested in the topic, are also those who are most disempowered as a result of its attendant dynamics. However, as this thesis clearly demonstrates, access (or a lack thereof) to the field of cultural production (which in the case of print culture includes writers, literary agents, editors, publishers, government arts organisations, the media, schools, book clubs, and book retailers, just to name a few) plays a significant role in establishing and shaping an identity for marginalised 3 constituencies. The implications for this research are far-ranging, since both Western Australia and Australia can be understood as peripheries dominated in their different spheres (the 'national' and the 'international', respectively) by literary cultures residing elsewhere. Furthermore, there are parallels between this dynamic and the dynamic responsible for producing postcolonial literatures. The three publishing houses detailed in this thesis are disadvantaged by many of the factors associated with their distance from the traditional centres of book publishing, while at the same time producing a regional literature that serves as a platform from which the state broadcasts its distinctive contributions to the cultural landscape and to a wider understanding of concepts such as space, place and belonging. These publishing houses changed the way in which Australians and others have come to know and think about 'Australia', re-routing public consciousness and the national imagination.

Doctor of Philosophy / This thesis explores the sense of place formed during childhood, as remembered by adult Australians who reconstruct their youth through various forms of life writing. While Australian writers do utilize traditional tropes of Western autobiography, such as the mythology of Eden and the Wordsworthian image of the child communing with Nature, these themes are frequently transformed to meet a uniquely Australian context. Isolation and distance from Europe, and the apparent indifference of our landscape towards white settlement, have received much critical attention in Australian studies generally and, indeed, broadly influence the formation of children’s sense of place across the continent. However, writers are also concerned with the role of place on a more local level. Through a comparison of writing from Western Australia, Queensland and Victoria, this thesis explores regional landscape preoccupations that create an awareness of local identity, variously contributing to or frustrating the child’s sense of belonging. Western Australian writing is dominated by images of isolation, the fragility of white settlement in a dry land lacking fresh water, and a pervasive beach culture. A strong sense of the littoral pervades writing from this region. Queensland’s frontier mythology is of a different flavour: warm and tropical, nature here is exuberant, constantly threatening to overwhelm culture, already perceived as transient due to the flimsy aspect of the “Queenslander” house. Writing from Victoria, to some extent, tends to more closely follow English models, juxtaposing country and city environments, although there is a distinctly local flavour to many representations of urban Melbourne and its flat, grid-like organization. As Australian society becomes more concentrated on the coastal fringe, the beach is an increasingly significant environment. Though more prominent in writing from some regions than others, coastal imagery broadly reflects the modern Australian’s sense of inhabiting a liminal zone with negotiable boundaries.