Australian Members Research Articles

A typical problem gambler affects six others

While the financial and psychological burden on problem gamblers can be severe, at least some of the ill effects are also passed on to family or other close social ties. The present study estimated the number of affected-others for the typical problem gambler. Australian members of an online panel with gambling problems (N = 3076) and panel members who indicated that they had been affected by someone else’s gambling (N = 2129) were asked to estimate the number of other people who were negatively affected by their gambling. Using robust statistics to analyse this data, the study found lower estimates made by problem gamblers (four affected people) compared to estimates made by affected others (six affected people, including the respondent). It was concluded that a point-estimate of six people affected is a more accurate figure since it does not suffer from self-presentation effects of problem gamblers. Low-risk and moderate-risk gamblers, unsurprisingly, affected far fewer other people (one and three, respectively). Both gamblers and affected-others most often identified close family members, including spouses and children, as the people impacted by others’ gambling problems. These results provide an approximate measure of the number of people affected, per problem gambler, to facilitate accurate accounting of the harms accruing from gambling problems.

False Beliefs About Asylum Seekers to Australia: The Role of Confidence in Such Beliefs, Prejudice, and the Third Person Effect

There has been much controversy about the treatment of asylum seekers in Australia in recent years, with the Australian Government continuing to enforce a very hard-line stance on asylum seekers who arrive to Australia by boat. The present study examined attitudes towards asylum seekers using 164 Australian community members during June 2015 by way of questionnaire. Our primary research question involved how five variables predicted false beliefs about asylum seekers. Specifically, we measured prejudice, the third-person effect, and confidence in the answers given to false beliefs about asylum seekers. Regression results indicated that the main predictors of false beliefs were right-wing political orientation, prejudice, confidence in espousing false beliefs, and the third-person effect (politicians). Furthermore, most of our community participants accepted a large number of false beliefs as being true, with approximately two-thirds of our participants scoring above the midpoint. This reflects similar findings over the last decade or so. Our results indicate that, if one believes in bottom-up change, a more nuanced approach needs to be undertaken with community anti-prejudice interventions.

Contribution to the Bryoflora of Australia. VI. The Genus Cololejeunea (Spruce) Steph. (Lejeuneaceae, Marchantiophyta)

AbstractThirty-eight species of the genus Cololejeunea (Spruce) Steph. (Lejeuneaceae, Marchantiophyta) are reported for the whole of Australia, more than doubling the number of taxa known since the first account of the Australian members of the genus. Cololejeunea cairnsiana Pócs, Cololejeunea heinari Pócs and Cololejeunea floccosa var. fraseriana Pócs are described as new to science. The records of Cololejeunea diaphana A. Evans, Cololejeunea gottschei (Steph.) Mizut., Cololejeunea longifolia (Mitt.) Benedix ex Mizut. Cololejeunea verrucosa Steph. and Cololejeunea floccosa (Lehm. & Lindenb.) Steph. var. amoenoides Tixier are new for the continent. Cololejeunea amoena Benedix is treated as a variety of Cololejeunea floccosa. Cololejeunea tortifolia Steph. is synonymized with Cololejeunea microscopica (Taylor) Schiffn. and is excluded from the Australian flora. The name Cololejeunea cambodiana Tixier is validated. A key for the Australian taxa and an analysis of their distribution follow the enumeration of species.

Australian Artists Abroad

Australian Artists Abroad

Phylogeographic patterns in New Zealand and temperate Australian cantharidines (Mollusca: Gastropoda: Trochidae: Cantharidinae): Trans-Tasman divergences are ancient

Current taxonomic treatments of New Zealand and temperate Australian members of the gastropod subfamily Cantharidinae imply that species on either side of the Tasman Sea are closely related and, in some cases, congeneric. Such a close relationship, however, entails a relatively recent divergence of Australian and New Zealand lineages, which seems inconsistent with what is known about cantharidine larval development in general. In order to address these issues, mitochondrial and nuclear DNA sequences were used to ascertain how cantharidine genera became established over the wide geographical range of temperate Australia and New Zealand, including their subantarctic islands. Our robust and dated phylogenies (based on 16S, COI, 12S and 28S sequences) revealed that Australian and New Zealand species fall into endemic clades that have been separated for, at most, 35million years. This divergence date postdates a vicariant split by around 50million years and we suggest that, once again, long-distance trans-Tasman dispersal has played a pivotal role in molluscan evolution in this part of the world. Our results also show that the current classification requires revision. We recognize three genera (Cantharidus [comprising 2 subgenera: Cantharidus s.str. and Pseudomargarella n. subgen.], Micrelenchus [comprising 2 subgenera: Micrelenchus s.str. and Mawhero] and Roseaplagis n. gen.) for New Zealand cantharidine species. In our dated BEAST tree, these genera form a clade with the endemic Australian Prothalotia and South African Oxystele. Other temperate Australian cantharidines in our study fall into previously recognized genera (Phasianotrochus, Thalotia, Calthalotia), which are all quite distinct from Cantharidus in spite of some authors considering various of them to be possible synonyms. Finally, we remove the Australian genus Cantharidella from the Cantharidinae to the subfamily Trochinae and erect a new genus, Cratidentium n. gen., also in the Trochinae, to accommodate several Australian species previously considered to belong to Cantharidella.

A new species of freshwater turtle of the genus Elseya (Testudinata: Pleurodira: Chelidae) from the Northern Territory of Australia.

The genus Elseya has had a checkered taxonomic history, but is now restricted to species characterized by an alveolar ridge on the triturating surfaces of the jaw. The Australian forms were once regarded as a single widespread species extending from the Mary River of south-eastern Queensland to the Fitzroy River of north Western Australia, but a number of Australian species have now been identified based on a combination of molecular and morphological data-Elseya dentata, E. irwini, E. lavarackorum and E. albagula. The genus is represented in New Guinea by E. branderhorsti, E. novaeguineae, E. schultzii, and E. rhodini. One additional Australian taxon first identified in 1981 and subsequently established as a distinct taxon by molecular studies, is described here. It is a large chelid turtle that can be distinguished from all other Australian members of the genus Elseya by the distinctive cream or yellow plastron, free of the dark streaking, blotches or suffusing present in other species; an extensive bridge with little or no abrupt angle between the bridge and the ventral surface of the plastron; a head shield broken into a series of small plates rather than a single unit; flat uncornified temporal scales; and a narrower, less robust skull. Osteologically, it can be distinguished from Elseya dentata by the contact of the vomer and the pterygoids. The carapace is typically a light to medium brown in color whereas the carapace of Elseya dentata is typically dark brown to almost black in color. Distribution is the Mary, South Alligator, East Alligator, Goyder and Mann River drainages of the north east of the Northern Territory, Australia. It does not appear to be in sympatry with any other member of Elseya. It is, however, in sympatry with three species of Chelodina, at least two species of Emydura, Myuchelys latisternum and Carettochelys insculpta.

Demographics of the Australian orthotic and prosthetic workforce 2007-12.

Objective Health workforce data are vital to inform initiatives to meet the future healthcare needs of our society, but there are currently no data describing the Australian orthotic and prosthetic workforce. The aim of the present study was to describe demographic changes in the Australian orthotic and prosthetic workforce from 2007 to 2012. Methods In the present retrospective time series study, data from the Australian Orthotic Prosthetic Association member database were analysed for trends from 2007 to 2012. Data describing the absolute number of practitioners, the number of practitioners per 100000 population, age, gender, state or territory of residence and service location (i.e. metropolitan, regional and remote) were analysed for significant changes over time using linear regression models. Results Although the number of orthotist/prosthetists in Australia increased (P=0.013), the number of orthotist/prosthetists per 100000 population remained unchanged (P=0.054). The workforce became younger (P=0.004) and more female (P=0.005). Only Victoria saw an increase in the proportion of orthotist/prosthetists in regional and remote areas. There was considerable state-to-state variation. Only Victoria (P=0.01) and Tasmania (P=0.003) saw an increase in the number of orthotist/prosthetists per 100000 population. Conclusions The orthotic and prosthetic workforce has increased proportionately to Australia's population growth, become younger and more female. The proportion of practitioners in regional and remote areas has remained unchanged. These data can help inform workforce initiatives to increase the number of orthotist/prosthetists relative to the Australian population and make the services of orthotist/prosthetists more accessible to Australians in regional and remote areas. What is known about the topic? Currently, there are no demographic data describing changes in the Australian orthotic and prosthetic workforce over time. These data are vital to inform initiatives to increase the size of the workforce, locate practitioners where health services are most needed and thereby plan to meet the future health care needs of our society. What does this paper add? This paper describes changes in the Australian orthotic and prosthetic workforce, where previously these data have not been available as part of federal initiatives to plan for future workforce needs. What are the implications for practitioners? Demographic data describing changes in the orthotic and prosthetic workforce are needed to inform workforce initiatives that improve access in regional and remote Australia, and retain a younger and more female workforce.

Integrative taxonomic revision of the polymorphic flat-millipede genera Oncocladosoma and Somethus in South Australia (Diplopoda : Polydesmida : Paradoxosomatidae)

The South Australian members of the flat-millipede genera Oncocladosoma Jeekel, 1985 and Somethus Chamberlin, 1920 are revised using an integrative approach incorporating sequence data and morphology. The partial mitochondrial cytochrome c oxidase subunit I (COI) barcoding gene and partial nuclear ribosomal 28S rRNA were amplified and sequenced for 15 Oncocladosoma specimens and 10 Somethus specimens and the datasets were used for molecular phylogenetic analysis and genetic distance determination. Both morphology and molecular data indicate that all species of Oncocladosoma fall within Somethus, and therefore, Oncocladosoma is synonymised with Somethus. Within those species supported by molecular data, features of the solenomere tip are relatively stable and useful for species identification. 28S rRNA has proven to provide sufficient nucleotide variation to provisionally discriminate species. Oncocladosoma castaneum ingens Jeekel, 1985, O. clavigerum Jeekel, 1985 and O. conigerum Jeekel, 1985 are junior synonyms of Somethus castaneus, comb. nov., and Somethus modicus Jeekel, 2002 is a synonym of S. scopiferus Jeekel, 2002. New records and electron scanning micrographs of gonopods are provided for S. castaneus, comb. nov., S. inflatus (Jeekel, 2002), comb. nov., S. lancearius Jeekel, 2002, S. scopiferus Jeekel, 2002, and Somethus grossi Jeekel, 1985, together with a key to the South Australian species of Somethus.

A Functional Analysis of 2013 Australian Member of Parliament and Prime Minister Debates

Kevin Rudd (Labor) engaged in two election debates in 2013: first for his seat in Parliament (Griffith) and then for Prime Minister. In seeking re-election to his Griffith seat he was challenged by Bill Glasson (Liberal), Geoff Ebbs (Green), and Karen Hunter (Palmer United). He faced Tony Abbott (Liberal) in the PM Debate. This study content analyses these two debates: an August 6, 2013 Member of Parliament debate and an August 11, 2013 Prime Minister debate. Acclaims were more common in these two debates than attacks; defenses were the least common function. Statements about policy outnumbered those on policy. In each debate, when the candidates discussed record in office (past deeds), the incumbent acclaimed more and attacked less than the challenger. More acclaims and fewer attacks addressed general goals and ideals.

Studies in Australian Katydids: A Review of the Australian Snub-nosed Sylvan katydids (Tettigoniidae; Pseudophyllinae; Simoderini).

The Australian members of the simoderine katydids are reviewed. The tribe is known from nine genera, five of which occur only in Madagascar, the others are Australian: Chloracantha Hebard (C. lampra, C. angularis sp. nov., C. garradunga sp. nov., C. hilleri sp. nov.), Tallebudgeroptera gen. nov. (T. spininota sp. nov.), Mastigaphoides Weidner (M. haffneri, M. tuberculatus sp. nov., M. vaginalis sp. nov., M. lewisensis sp. nov.), Narea Walker (N. compacta, N. elongata, N. kungaree sp. nov.). Mastighapha Karsch is synonymised with Narea. Descriptions, illustrations, sound recording information and distribution maps are presented for all species.

Chromosome numbers in Australian charophytes (Characeae, Charophyceae)

:Over the course of a 25 year ecological and taxonomic study, the chromosomes of Australian charophytes (family Characeae) were examined and enumerated. The usual number for members of Chara was n = 14 (for dioecious species) or n = 28 (for monoecious species); although Chara braunii has always been recorded as having n = 14 despite being monoecious. Species in sections Agardhia and Grovesia often had higher ploidy levels [n = 3 × 14 (42), n = 4 × 14 (56)]. The usual number for Australian members of Nitella was n = 9 (for dioecous species) and n = 18, 24 or 27 for monoecious species. Nitella stuartii was an exception, having n =15 in the specimens studied here. The usual number for monoecious members of Lamprothamnium was n = 28; although, monoecious Lamprothamnium inflatum consistently had n = 14 (populations from Western Australia, Kangaroo Island and South Australia). Chromosome numbers were different for each species of Tolypella examined (n = 11 to 36). There was a high degree of polyploidy within Characeae, and there was evidence that even the lowest numbers of chromosomes represented polyploids (3n for Nitella and 2n for Chara). Polyploidy and consequent doubling or tripling of enzymatic capacity (via potential multiple isozymes) is likely to have a role in the morphological variability and biochemical flexibility of charophytes. Information about the number and appearance of chromosomes (karyotypes) can be used in systematic studies to determine relatedness of taxa and to understand some of the evolutionary processes operating at the population or species level.

Beliefs about Causes of Obesity: A Comparison of Australian Doctors, Psychologists and Community Members

The current study aimed to investigate differences in beliefs about causes of obesity between Australian doctors, psychologists and a community sample. Forty-one doctors, 66 psychologists and 98 community members completed questionnaires regarding beliefs about causes to obesity, including measures of obesity stigma. The results showed a consistent pattern of beliefs across groups, with all three groups having strong beliefs about behavioural and psychological causes to obesity. Further, results showed that the three groups did not have particularly strong or weak antifat attitudes and although they did not have overly favourable attitudes towards obese people, their attitudes were not highly negative. However, stronger antifat attitudes were found to be predictive of beliefs about behavioural and psychological causes, while weaker antifat attitudes were predictive of beliefs about biological causes of obesity.

Australian water mites of the genus Hydrachna Müller, with the description of five new species (Acari: Hydrachnidia: Hydrachnidae).

A survey is given of the diversity of the water mite genus Hydrachna Müller in Australia. Five new species are described: Hydrachna cordata n. sp., H. curtiscutata n. sp., H. longiscutata n. sp., H. novaehollandica n. sp. and H. queenslandica n. sp.. The females of H. conjectoides Lundblad and H. hamata Lundblad and the male of H. tasmanica Lundblad are described for the first time. The conclusion of Lundblad (1947) that H. laceriscutata Lundblad is a synonym of H. bilobata is supported. Finally, many new records are given from Australian members of the genus.

The smallest Cyrtoscydmini of Australia: revision of Microscydmus Saulcy & Croissandeau and Penicillidmus gen. n.(Coleoptera, Staphylinidae, Scydmaeninae).

The Australian members of Microscydmus are revised, and a new subgenus Scydmomicrus subgen. n. is established to accommodate seven species: M. (Sc.) australiensis Franz (type species of Scydmomicrus), M. (Sc.) nasicornis Franz, M. (Sc.) capitiseboraci sp. n., M. (Sc.) queenslandicus sp. n., M. (Sc.) styxianus sp. n., M. (Sc.) edithensis sp. n., and M. (Sc.) tooloomensis sp. n. A new Microscydmus-like genus, Penicillidmus gen. n., is described to include Penicillidmus masseyensis sp. n. (type species of Penicillidmus) and P. unicolor sp. n. Species of Microscydmus and Penicillidmus are distributed along the eastern coast of Australia, from the northern Cape York to northeastern New South Wales, and females of an undescribed Microscydmus are recorded from southern New South Wales. The revised taxa comprise the smallest Australian Cyrtoscydmini, with body lengths of only 0.50-0.65 mm (Microscydmus) and 0.83-0.86 mm (Penicillidmus). For comparative purposes, morphological details of the type species of Microscydmus, M. nanus, are described, and structures of the new subgenus and new genus are illustrated. Variations of character states within Microscydmus found among Australian species are discussed.

A molecular and morphological investigation of species boundaries and phylogenetic relationships in Australian free-tailed bats Mormopterus (Chiroptera : Molossidae)

The taxonomic uncertainty surrounding several prominent genera of Australian microbat has been a long-standing impediment to research and conservation efforts on these groups. The free-tail bat genus Mormopterus is perhaps the most significant example, with a long history of acknowledged species-level confusion. This study uses a combined molecular and morphological approach to conduct a comprehensive assessment of species and subgeneric boundaries, between-species phylogenetic affinities and within-species phylogeographic structure in Australian members of Mormopterus. Phylogenetic analyses based on 759 base pairs of the NADH Dehydrogenase subunit 2 mitochondrial gene were concordant with species boundaries delineated using an expanded allozyme dataset and by phallic morphology, and also revealed strong phylogeographic structure within two species. The levels of divergence evident in the molecular and morphological analyses led us to recognise three subgenera within Australia: Micronomus, Setirostris subgen. nov. and Ozimops subgen. nov. Within Ozimops we recognise seven Australian species, three of which are new, and none are conspecific with Indo-Papuan species. The family Molossidae now comprises eleven species across three subgenera in Australia, making it the continent’s second most speciose family of bats.

The Negative Impact of Additional Legislation on Corporate Stewardship

Many jurisdictions worldwide have reacted to the global financial crisis by implementing new or improved corporate legislative requirements. These would impact upon company directors and audit committee members. This study examines the attitudes of Australian members of these two groups to nine United Kingdom proposed amendments to corporate legislation.Both groups were predominantly opposed to additional legislation (failing to see how it could improve current stewardship) and indicated they would be less comfortable in their current roles. The implications are significant. Additional legislation, although well intentioned, may have negative impacts on stewardship, as requirements may deter good corporate citizens from retaining or seeking office.

An Empirical Analysis of Appeals by Class Members in Australia's Federal Class Actions

Australia was one of the first countries to emulate the United States by introducing class actions. But, unlike their American federal counterparts, the drafters of the three class action regimes that are in operation in Australia chose to deal expressly with and regulate the ability of class members (who are bound by, but not formal parties to, the class action litigation) to file an appeal, where the class representative is unwilling or unable to take such a step, from judicial orders that are adverse to their interests. Despite the fact that the ability to file an appeal represents one of the most significant powers available to Australian class members to ensure that their interests are protected in the litigation (without the involvement of the class representatives), these appeal mechanisms have not been the subject of critical analysis by Australian scholars. The aim of this paper is to address this lacuna in the legal literature by reviewing the aims, essential features and operation of the provision that governs the ability of class members to file appeals in Australia's longest running class action regime, which has been regulating class actions in the Federal Court of Australia since March 1992. For this purpose, the findings that have emerged from the first-ever empirical study of this regime, which the author recently conducted, are employed. References are also made to the corresponding provisions found in the two other Australian class action regimes, which operate in the Supreme Courts of Victoria and New South Wales, and to the American and Canadian experience with appeals by class members.

Intensive sampling identifies previously unknown chemotypes, population divergence and biosynthetic connections among terpenoids in Eucalyptus tricarpa

Australian members of the Myrtaceae produce large quantities of ecologically and economically important terpenes and display abundant diversity in both yield and composition of their oils. In a survey of the concentrations of leaf terpenes in Eucalyptus tricarpa (L.A.S. Johnson) L.A.S. Johnson & K.D. Hill, which were previously known from few samples, exceptional variability was found in composition. The aim was to characterize the patterns of variation and covariation among terpene components in this species and to use this information to enhance our understanding of their biosynthesis. There were marked discontinuities in the distributions of numerous compounds, including the overall proportions of mono- and sesquiterpenes, leading us to delineate three distinct chemotypes. Overall, positive covariation predominated, but negative covariation suggested competitive interactions involved in monoterpene synthesis. Two groups of covarying monoterpenes were found, each of which was positively correlated with a group of sesquiterpenes and negatively correlated with the alternate sesquiterpene group. These results imply substantial cross-talk between mono- and sesquiterpene biosynthesis pathways. However, only those compounds hypothesized to share final carbocation intermediates or post-processing steps were strongly positively correlated within chemotypes. This suggests that the broader patterns of covariation among groups of compounds may result from co-regulation of multiple biosynthetic genes, controlling the complex terpene profiles of the chemotypes of Eucalyptus.

Corrigendum to: Lamprothamnium in Australia (Characeae, Charophyceae)

Charophytes in the genus Lamprothamnium exhibit a large amount of diversity, particularly in the examples from Australia, although little of that variation has been recognised at species level in the past. The Australian members of the genus are revised here on the basis of extensive new collections, examination of specimens in herbaria and comprehensive review of the literature and available type material. The existing species Lamprothamnium macropogon (A.Braun) Ophel, L. inflatum (Fil. & G.O.Allen ex Fil.) A.García & Karol and L. heraldii A.García & Casanova are retained, eight new species are described (L. australicum Casanova, L. beilbyae Casanova, L. capitatum Casanova, L. compactum Casanova, L. coorongense Casanova, L. diminutum Casanova, L. macroanthum Casanova and L. stipitatum Casanova) and two taxa variously treated at infraspecific rank in Lychnothamnus are transferred to Lamprothamnium at species rank (L. cockajemmyense Casanova, L. tasmanicum (A.Braun) Casanova). Neither L. papulosum (Wallr.) J.Groves nor L. succinctum (A.Braun) R.D.Wood are confirmed for Australia after examination of the type material of these species. Species are distinguished by the arrangement of the gametangia, morphology of the fertile whorls and characteristics of the oospores. Four of these species are dioecious and nine are monoecious, which supports published conjectures concerning the biogeography of charophyte species (Proctor (1980): J. Phycol. 16, 218–233, doi:10.1111/j.1529-8817.1980.tb03023.x).

An overview of the Thelymitra nuda (Orchidaceae) complex in Australia including the description of six new species

The Thelymitra nuda J.R.Forst. & G.Forst. complex is defined as a group and an overview of the Australian members is presented. Six new species, T. alcockiae D.L. Jones ex Jeanes, T. alpina Jeanes, T. glaucophylla R.J. Bates ex Jeanes, T. paludosa Jeanes, T. petrophila Jeanes and T. queenslandica Jeanes, are described and illustrated. The key diagnostic characters are discussed where relevant. Information on distribution, habitat, flowering time, pollination biology and conservation status is given for all taxa. A dichotomous key is provided.