Organochlorine and trace metal residues in adult southern bent-wing bat (Miniopterus schreibersii bassanii) in Southeastern Australia

In recent times, the apparent population decline of the southern bent-wing bat (Miniopterus schreibersii bassanii) at Bat Cave, Naracoorte has been ascribed to pesticide use in the region, following the finding of organochlorine and orgaonophosphate insecticide residues in bat guano. Adult southern bent-wing bats were collected from Bat Cave and Starlight Cave in 2003. Organochlorine contaminants were detected in all carcass samples: p,p′-DDE was by far the most dominant contaminant with concentrations ranging from 11 000 to 59 000 ng g^&minus;1, followed by p,p′-DDT (110–1600 ng g^&minus;1), p,p′-DDD (35–620 ng g^&minus;1), ∑PCBs (33–490 ng g^&minus;1), ∑chlordane and related compounds (7.9–270 ng g^&minus;1), HCB (1.6–120 ng g^&minus;1), HP epox. (3.1–230 ng g^&minus;1), TCPMOH (3.8–38 ng g^&minus;1), ∑HCHs (1.4–9.6 ng g^&minus;1), and TCPMe (0.1–4.2 ng g^&minus;1) (all values on lipid-weight basis). No significant difference in DDE, DDD, DDT, ∑DDT, ∑PCB, trans-chlordane, heptachlor epoxide, trans-nonachlor, α-HCH, β-HCH, γ-HCH, TCPMOH or TCPMe concentrations were observed either between sexes within sites, or between sites (p > 0.05). However, there were significant differences in HCB and oxychlordane concentrations between sexes and between sites (p < 0.05), between site differences in cis-nonachlor concentrations in male bats (p < 0.05), and cis-chlordane concentrations between sexes at Starlight Cave, and between males of each site (p < 0.05). There were also significant differences in the liver concentrations of some metals between sexes within sites (Ag, Cd, Co, Cu, Pb, Se, Zn), and between sites (Ag, Cd, Co, Cu, Hg, Pb, Se, V, Zn). Clustering or grouping of sites was observed when the OC data was expressed on a lipid-weight basis. These inter-site differences in OC concentrations reflect local exposure over a period of time, and do not unambiguously support any suggestion that we are witnessing incipient speciation. However, for conservation purposes, it may be prudent to assume that there are two sub-populations of M. s. bassani feeding in different locations in this region of southern Australia, rather than the single homogeneous population suggested by genetic studies.

Access to breast prostheses via a government-funded service in Victoria, Australia

For many women, the only alternative to breast reconstruction following a mastectomy is to use external prostheses, which need replacing regularly at a cost of up to $395 per prosthesis. Commonwealth and state governments across Australia have responded to this need by providing subsidies to assist in the purchase of breast prostheses. However, current arrangements have been highly variable and sometimes difficult to access. As part of a larger review of breast pros-thesis services in Victoria, Australia, the aim of this research was to evaluate client satisfaction among Victorian women who accessed funds through the State Government's Aids and Equipment Program, compare the responses of the program service providers with the experiences of clients accessing funding, and identify opportunities to improve service provision.

Asynchronous patterns of reproduction for the sympatric scallops Chlamys bifrons and Chlamys asperrima (Bivalvia : Pectinidae) in South Australia

Patterns of spawning activity were assessed by monitoring gonad states over 2.5 years for Chlamys asperrima and Chlamys bifrons at two sites in Gulf St Vincent, South Australia. Chlamys asperrima appeared to have a minor spawning in June, followed by a major spawning starting in late August. In contrast, the gonads of C. bifrons were regressed only during winter and it appeared that C. bifrons spawned for a long period, from late spring (September) until early autumn (March). At one site where sampling was frequent, there was evidence of three series of C. bifrons spawning events during the summer of 1994/95 and at least two series of events during 1995/96. Build-up and decrease in gonad weight was quick, but there was strong evidence of serial spawning for both species. Subsequently, we once observed C. asperrima spawning in situ at Edithburgh Jetty, at a time when gonad weights had been decreasing in previous years, but also long after the time when peak gonad weights had usually occurred. Only patches within the population were seen spawning, with scallops not spawning observed less than 100 m away from those that were. Indirect sampling of gonad condition also suggested that spawning in C. bifrons at Largs Bay was not always synchronous among patches of scallops within a population, nor always between sexes within patches.

The use of codes of ethics in the marketplace in corporate Australia : a longitudinal study

The stock market crash of 1987 was a defining moment in Australian corporate life. As a nation, we became acutely aware of the ‘moral bankruptcy’ that had come to permeate our corporate world. The focus on business ethics or the lack of it, in corporate Australia in the late 1980s, prompted this research.

The research for this paper that was first conducted in 1995 and replicated in 2001 focussed on the top 500 companies in Australia. These companies were surveyed on a raft of issues, one of which was their use of their codes of ethics in the marketplace. This paper examines the data sets from 1995 and 2001 and concludes that many of Australia’s largest enterprises have recognised the need for business ethics. As perceived by them, they can and do use their codes of ethics in a positive manner in the marketplace and attribute benefits to this interaction.

Pieces of silver : examples of the economic impact and management of the silver gull (Larus novaehollandiae) in Melbourne, Australia

Like a number of gull species, the silver gull Larus novaehollandiae has expanded its population in response to human food subsidy. The major anthropogenic food source is food waste at rubbish tips. Other sources of human food waste are also exploited. Many problems result from the activities of these birds, including human health and safety, economic impacts, and effects on the conservation of other species. My study examines aspects of the economic impacts of the silver gull on the human community of the Greater Melbourne Area comprising approximately 4065 km2 (1569 square miles). My data collection method involves identifying sites where problems have been experienced and completing questionnaires during face to face interviews with the managers of those sites. Data collected at this early stage of the study demonstrate that there are significant, quantifiable economic impacts associated with the superabundance of the silver gull in this area. Other impacts, such as reduced amenity and potential health hazards are equally real but more difficult to quantify. Costs include damage to structures and products, damage prevention measures, and loss of production. Information about the costs of these problems will be presented to the relevant landfill management authorities to encourage them to consider alternative means of disposing of putrescible waste, rather than by open landfill disposal, because even current best practice management of open landfill sites (rubbish tips) provides ample opportunity for silver gulls and certain other bird species to exploit this food source. Controlling access by the silver gull to food at rubbish tips would be an important first step in managing the population of this species.

Net energy analysis of solar and conventional domestic hot water systems in Melbourne, Australia

It is commonly assumed that solar hot water systems save energy and reduce greenhouse gas emissions. Very rarely has the life-cycle energy requirements of solar hot water systems been analysed, including their embodied energy. The extent to which solar hot water systems save energy compared to conventional systems in Melbourne, Australia, is shown through a comparative net energy analysis. The solar systems provided a net energy saving compared to the conventional systems after 0.5 to 2 years, for electricity and gas systems respectively.

Marketing of place to attract and retain population in regional Australia

In Australia, as in many other developed countries, regional and rural areas are suffering from an overall decline in population with a specific loss of young adults (16-30 year olds). A decline in population, linked with the Australia-wide problems of ageing populations and diminishing birth rates, is leading to a social and economic decline in many regional cities and towns that threatens their long-term sustainability due to the lack of skilled workers and professionals. Although the loss of population from regional and rural areas has the potential to affect the national economy, it has mainly fallen to local government to combat the problem. Local government is beginning to use place marketing to attract and retain residents in addition to its traditional use of place marketing to attract industry and investment.

This exploratory paper examines regional decline in Australia and the concept of "place" marketing as means of arresting or reversing the decline, A conceptual model of place marketing by local government in Australia has been developed and a number of hypothesis are proposed for testing in future research.

Technology and marginalization: a case study of the limited adoption of the intranet at a state-owned organisation in rural Australia

Taking a critical theory approach and the pluralist view of technology, this paper examines the problems in organizational communication that arose due to the implementation of a limited intranet electronic mail system as the main channel of communication between a rural stateowned organization and its city-based Head Office, installed at the sole discretion of the latter.
The intranet was provided only to the administration division and managers of some units due to financial constraints. This required others to receive information carried via the intranet through a gatekeeper who due to information and work overload, failed to disseminate the information effectively and efficiently. Using a combination of qualitative data collection methods, this study found that the intranet had marginalized those without access to it and reinforced the privileged position of those already with higher status within the organization, contrary to the utopian predictions
of new technologies as leading to social equality.

Accounting for local government boundary changes in South Australia : valuing assets and liabilities or valuing revenue streams

This paper examines the methodologies adopted in the transfer of assets, liabilities, revenues and expenses resulting from boundary changes associated with municipal amalgamations in South Australia during the late 1990s. It investigates the methods employed for apportioning these financial elements, valuations used and financial settlements required. Significant transfers occurred in only three cases. In two cases, councils used simple, pragmatic methods to apportion assets and liabilities, similar to those used previously in Victoria. In the third case a transfer price was calculated based on the net present value of revenues. This method is quite different from previous methods examined and is appropriate where one council will make significant future gains at another council's loss because of net revenue transfers.

Mentoring volunteer festival managers : evaluation of a pilot scheme in regional Australia

Festival managers in regional locations often have limited access to didactic experiences in their field. As such, developing strategies that enhance the skills of festival management in regional locations can be challenging. This paper, set within the context of the Australian regional arts festival sector, evaluates a pilot mentoring scheme developed by Regional Arts Victoria and Arts Victoria to assist volunteer festival managers to enhance the management, and focus the artistic direction, of their festivals. The results of the evaluation, based on six case studies, indicate that mentoring is highly suited to this scenario. Recommendations are made with regard to the future application of mentoring within this context, particularly in relation to communication and formalisation.

Community attitudes towards the early detection of cancer in Victoria, Australia

Objectives: To describe people's attitudes towards early detection of cancer.

Methods: We conducted a telephone survey of Victorian adults aged 18+ years, during April-May 2005, using a market research company.

Results: 1,502 (41%) people participated; 80% of respondents believed that detecting cancer early meant that treatment saved lives most of the time or always; 88% believed finding cancer early enabled more effective treatment most of the time or always; and 70% indicated they would want to be tested for a cancer even if no treatment were available.  Two-thirds or more of adults considered survival would be very much improved by early detection for breast, melanoma and prostate cancers; 49% for bowel cancer, and 30% for lung cancer.

Conclusions and Implications : Community support for the early detection of cancer was evident even in the absence of effective treatment.  There was a lower perceived survival benefit for the early diagnosis of bowel cancer or melanoma.  An education campaign is required that focuses on the gains associated with early detection and benefits of screening for bowel cancer.