Sanguinicola maritimus n. sp (Digenea : Sanguinicolidae) from Labridae (Teleostei : Perciformes) of southern Australian waters

A new species of Sanguinicola Plehn, 1905 is described from the marine teleosts Notolabrus parilus (Richardson) and N. tetricus (Richardson) (Perciformes: Labridae) from Western Australian and Tasmanian waters. This host distribution is strikingly anomalous; however, the present material fulfils the morphological criteria of Sanguinicola. S. maritimus n. sp. differs from previously described species in having the combination of a body 1,432-1,701 mu m long, the oesophagus 18.3-21.7% of the body length, the testis occupying 42.8-52.3% of the body length, an oviducal seminal receptacle and Mehlis' gland present, ovoid eggs, and vitelline follicles that extend anteriorly past the nerve commissure, laterally past the lateral nerve chords and posteriorly to the anterior margin of the cirrus-sac. S. maritimus also lacks a protrusible anterior proboscis. It also differs in the combination of host and geographical location, being the first Sanguinicola species from a marine teleost and the first from Australian waters.

Acculturation and eating disorders in Asian and Caucasian Australian adolescent girls

The present study aimed to compare the attitudes and psychopathology of eating disorders between Asian and Caucasian adolescent girls; and investigate the relationship between acculturation and the attitudes and psychopathology of eating disorders in subgroups of Asian girls. Two groups of non-clinical adolescent girls in Perth, Western Australia, were compared using a survey method. There were 17 Asian and 25 Caucasian adolescent girls, aged 14-17 drawn from private high schools in Perth who were screened using the Eating Attitudes Test (EAT-26), the Eating Disorders Inventory (EDI-2), and an acculturation index. The psychopathology scores for eating disorders of the Asian group were significantly higher than that of the Caucasian group in terms of total EDI-2 score, Interpersonal Distrust, Maturity Fears, Impulse Regulation and Social Insecurity subscales. Eating attitudes measured by Dieting subscale of the EAT-26 was significantly different. Within the Asian group, the less acculturated girls had higher scores on the EAT-26 and the EDI-2 than the more acculturated. Less acculturated Asian girls appeared to have unhealthier attitudes and psychopathology toward eating.

Family, work and health - The impact of marriage, parenthood and employment on self-reported health of Australian men and women

We investigate multiple-burden and multiple-attachment hypotheses for the association among marriage, parenthood, employment and health for Australian men and women. Using longitudinal data from the Australian panel survey, 'Negotiating the Lifecourse', we find that men and women employed full time report better health than those employed part time or not employed. Previously married women report worse health than married women, but there is no association between marital status and health for men. We also find that men with preschool children in the household report worse health than men with older children, whereas women with preschool children report better health than women with older children. In addition for women we find evidence of a role-burden where combining full-time employment and children has a negative impact on health, but combining children with part-time or no employment has a beneficial health effect. There are no health effects of combining roles for men.

The return to schooling: Estimates from a sample of young Australian twins

This study uses a sample of young Australian twins to examine whether the findings reported in [Ashenfelter, Orley and Krueger, Alan, (1994). 'Estimates of the Economic Return to Schooling from a New Sample of Twins', American Economic Review, Vol. 84, No. 5, pp.1157-73] and [Miller, P.W., Mulvey, C and Martin, N., (1994). 'What Do Twins Studies Tell Us About the Economic Returns to Education?: A Comparison of Australian and US Findings', Western Australian Labour Market Research Centre Discussion Paper 94/4] are robust to choice of sample and dependent variable. The economic return to schooling in Australia is between 5 and 7 percent when account is taken of genetic and family effects using either fixed-effects models or the selection effects model of Ashenfelter and Krueger. Given the similarity of the findings in this and in related studies, it would appear that the models applied by [Ashenfelter, Orley and Krueger, Alan, (1994). 'Estimates of the Economic Return to Schooling from a New Sample of Twins', American Economic Review, Vol. 84, No. 5, pp. 1157-73] are robust. Moreover, viewing the OLS and IV estimators as lower and upper bounds in the manner of [Black, Dan A., Berger, Mark C., and Scott, Frank C., (2000). 'Bounding Parameter Estimates with Nonclassical Measurement Error', Journal of the American Statistical Association, Vol. 95, No.451, pp.739-748], it is shown that the bounds on the return to schooling in Australia are much tighter than in [Ashenfelter, Orley and Krueger, Alan, (1994). 'Estimates of the Economic Return to Schooling from a New Sample of Twins', American Economic Review, Vol. 84, No. 5, pp. 1157-73], and the return is bounded at a much lower level than in the US. (c) 2005 Elsevier B.V. All rights reserved.

Effects of artificial foods on the blood chemistry of the Australian magpie

Bird feeding on residential property is a popular activity throughout Western countries. Advocates insist the practice is beneficial, while opponents maintain that it can result in a wide range of negative outcomes including malnutrition. The biological effects of 'backyard feeding' were studied in Australian magpies Gymnorhina tibicen during the non-breeding season in 1999 in the Greater Brisbane and the Lockyer Valley regions, south-east Queensland, Australia. Six magpie populations were selected and 70 birds were individually tagged for identification. The birds were provided with processed foods, 20-40 g per bird daily. To monitor the effects of the food, blood chemistry and body mass (BM) were used as indices. Significant effects were observed in BM and plasma cholesterol (PC), showing strong sensitivity to food provisioning. Significant effects on PC and uric acid were found only when birds were fed dog sausage. Results suggest that blood PC levels in magpies are readily influenced by, probably, the lipids present in food, and that the type of food can affect blood PC levels. These effects may occur widely among fed magpies if the influence that we demonstrated at plasma level can be generalized. Following the free-ranging study, six magpies were captured and subjected to a 6-day captive experiment to determine whether the selected foods had the potential to alter the birds' blood chemistry. It was found that all of the foods, when provided ad libitum, influence at least two of the three blood parameters (PC and non-esterified fatty acids). Due to its popularity, wildlife feeding will continue. To make wildlife-feeding activities truly sustainable, there is a need for further studies. This study clearly demonstrated that the physiology of wild magpies can be affected by 'backyard feeding'.

Is the distribution of Fiji leaf gall in Australian sugarcane explained by variation in the vector Perkinsiella saccharicida?

Fiji leaf gall (FLG) is an important virally induced disease in Australian sugarcane. It is confined to southern canegrowing areas, despite its vector, the delphacid planthopper Perkinsiella saccharicida, occurring in all canegrowing areas of Queensland and New South Wales. This disparity between distributions could be a result of successful containment of the disease through quarantine and/or geographical barriers, or because northern Queensland populations of Perkinsiella may be poorer vectors of the disease. These hypotheses were first tested by investigating variation in the ITS2 region of the rDNA fragment among eastern Australian and overseas populations of Perkinsiella. The ITS2 sequences of the Western Australian P. thompsoni and the Fijian P. vitiensis were distinguishable from those of P. saccharicida and there was no significant variation among the 26P. saccharicida populations. Reciprocal crosses of a northern Queensland and a southern Queensland population of P. saccharicida were fertile, so they may well be conspecific. Single vector transmission experiments showed that a population of P. saccharicida from northern Queensland had a higher vector competency than either of two southern Queensland populations. The frequency of virus acquisition in the vector populations was demonstrated to be important in the vector competency of the planthopper. The proportion of infected vectors that transmitted the virus to plants was not significantly different among the populations tested. This study shows that the absence of FLG from northern Queensland is not due to a lack of vector competency of the northern population of P. saccharicida.

Integration of ice-core, marine and terrestrial records for the Australian Last Glacial Maximum and Termination: a contribution from the OZ INTIMATE group

The degree to which Southern Hemisphere climatic changes during the end of the last glacial period and early Holocene (30-8 ka) were influenced or initiated by events occurring in the high latitudes of the Northern Hemisphere is a complex issue. There is conflicting evidence for the degree of hemispheric 'teleconnection' and an unresolved debate as to the principle forcing mechanism(s). The available hypotheses are difficult to test robustly, however, because the few detailed palaeoclimatic records in the Southern Hemisphere are widely dispersed and lack duplication. Here we present climatic and environmental reconstructions from across Australia, a key region of the Southern Hemisphere because of the range of environments it covers and the potentially important role regional atmospheric and oceanic controls play in global climate change. We identify a general scheme of events for the end of the last glacial period and early Holocene but a detailed reconstruction proved problematic. Significant progress in climate quantification and geochronological control is now urgently required to robustly investigate change through this period. Copyright (c) 2006 John Wiley & Sons, Ltd.

Review of the ecology of Australian urban fauna: A focus on spatially explicit processes

Cities have a major impact on Australian landscapes, especially in coastal regions, to the detriment of native biodiversity. Areas suitable for urban development often coincide with those areas that support high levels of species diversity and endemism. However, there is a paucity of reliable information available to guide urban conservation planning and management, especially regarding the trade-off between investing in protecting and restoring habitat at the landscape level, and investing in programmes to maintain the condition of remnant vegetation at the local (site) level. We review the literature on Australian urban ecology, focusing on urban terrestrial and aquatic vertebrate and invertebrate fauna. We identify four main factors limiting our knowledge of urban fauna: (i) a lack of studies focusing at multiple ecological levels; (ii) a lack of multispecies studies; (iii) an almost total absence of long-term (temporal) studies; and (iv) a need for stronger integration of research outcomes into urban conservation planning and management. We present a set of key principles for the development of a spatially explicit, long-term approach to urban fauna research. This requires an understanding of the importance of local-level habitat quality and condition relative to the composition, configuration and connectivity of habitats within the larger urban landscape. These principles will ultimately strengthen urban fauna management and conservation planning by enabling us to prioritize and allocate limited financial resources to maximize the conservation return.

Tradition, myth and the dilemma of Australian foreign policy

For a middle power with a relatively short history of framing a self determined foreign policy, Australia has actively sought to engage with both its immediate region and the wider world. Elite agreement on this external orientation, however, has by no means entailed consensus on what this orientation might involve in terms of policy. Consequently, two, often conflicting, traditions and their associated myths have informed Australian foreign policy-making. The most enduring tradition shaping foreign policy views Australia as a somewhat isolated bastion of Western civilisation. In this mode Australia's myth is pragmatic, but uncertain and sees Asia as both an opportunity and a potential threat which requires the support and counsel of culturally similar external powers engaged in the region to ensure stability. Against this, an alternative and historically later tradition crafted a foreign policy that advanced Australian independence through engagement with a seemingly monolithic and increasingly prosperous Asia. This paper explores the evolution and limitations of these foreign policy traditions and the myths that sustain them. It further considers what features of these traditions continue to have resonance in a region that has become more fluid and heterogeneous than it was during the Cold War and which requires a foreign policy flexibility that can address this complex and strategically uncertain environment.

Eating disorder attitudes and psychopathology in Caucasian Australian, Asian Australian and Thai university students

Objective: To examine eating disorder attitudes and psychopathology among female university students in Australia and Thailand. Method: Participants were 110 Caucasian Australians, 130 Asian Australians and 101 Thais in Thailand. The instruments included the Eating Attitudes Test (EAT) and the Eating Disorders Inventory (EDI). Results: Eating disorder attitudes and psychopathology scores in the Thai group were found to be highest. The Asian Australian group did not have significantly higher scores on the EAT-26 than the Caucasian Australian group, but had higher scores in some subscales of the EDI-2. That the Thai group had the highest scores in susceptibility to developing an eating disorder and eating disorder psychopathology may be partially explained in sociocultural terms, with pressure to be thin more extreme in Thailand than in Australia. The evidence suggested that unhealthy eating disorder psychopathology is not limited to Western societies but is already present in Thai and other Asian societies.

Acculturation and eating disorders in Asian and Caucasian Australian university students

This study aimed to compare the attitudes and psychopathology of eating disorders of Asian and Caucasian university students using a survey method. The study also investigated the relationship between acculturation, attitudes and psychopathology of eating disorders in sub-groups of Asian girls. There were 130 Asian and 110 Caucasian adolescent girls, aged 18–24 who were screened using the Eating Attitudes Test (EAT-26), the Eating Disorders Inventory (EDI-2) and an Acculturation Index. The Asian group did not have higher mean EAT score than the Caucasian group, but had higher mean score in some sub-scales of the EDI-2. Eating disordered attitudes and psychopathology was not significantly different in the low compared to the high accultured Asian girls. This study suggests that Asian and Caucasian university students in Western Australia are equally susceptible to eating disorders, and that the level of acculturation does not modify the susceptibility of Asian students for eating disorders.

Australian Social Attributes: The First Report

A fascinating insight into what Australians think about contemporary political and social issues using data collected from the inaugural Australian Survey of Social Attitudes on the expressed opinions of some 4300 Australian adults. An excellent resource for students, teachers, researchers and policy makers, and for anyone interested in understanding the social dynamics of contemporary Australia.