Interspecific and geographic variation in the diets of sympatric carnivores: dingoes/wild dogs and red foxes in south-eastern Australia

Dingoes/wild dogs (Canis dingo/familiaris) and red foxes (Vulpes vulpes) are widespread carnivores in southern Australia and are controlled to reduce predation on domestic livestock and native fauna. We used the occurrence of food items in 5875 dingo/wild dog scats and 11,569 fox scats to evaluate interspecific and geographic differences in the diets of these species within nine regions of Victoria, south-eastern Australia. The nine regions encompass a wide variety of ecosystems. Diet overlap between dingoes/wild dogs and foxes varied among regions, from low to near complete overlap. The diet of foxes was broader than dingoes/wild dogs in all but three regions, with the former usually containing more insects, reptiles and plant material. By contrast, dingoes/wild dogs more regularly consumed larger mammals, supporting the hypothesis that niche partitioning occurs on the basis of mammalian prey size. The key mammalian food items for dingoes/wild dogs across all regions were black wallaby (Wallabia bicolor), brushtail possum species (Trichosurus spp.), common wombat (Vombatus ursinus), sambar deer (Rusa unicolor), cattle (Bos taurus) and European rabbit (Oryctolagus cuniculus). The key mammalian food items for foxes across all regions were European rabbit, sheep (Ovis aries) and house mouse (Mus musculus). Foxes consumed 6.1 times the number of individuals of threatened Critical Weight Range native mammal species than did dingoes/wild dogs. The occurrence of intraguild predation was asymmetrical; dingoes/wild dogs consumed greater biomass of the smaller fox. The substantial geographic variation in diet indicates that dingoes/wild dogs and foxes alter their diet in accordance with changing food availability. We provide checklists of taxa recorded in the diets of dingoes/wild dogs and foxes as a resource for managers and researchers wishing to understand the potential impacts of policy and management decisions on dingoes/wild dogs, foxes and the food resources they interact with.

The old mind the house: the elderly and their place in the modern Minangkabau family in Indonesia

The many local cultures of Indonesia are often thought of as being more family-oriented than is usual in western societies and taking a more communal approach to providing care for individuals who require it within the context of traditional family and social structures. While this situation does represent an idealized conceptualization of traditional values, the reality of modern life in Indonesia has often not supported the maintenance of such patterns. This paper investigates the dilemma faced by many Minangkabau families in caring for elderly relatives in modern Indonesia. Based on a large study of aging among members of this ethnic group, it describes the social forces that shape modernIndonesian life and their effects on traditional social structures with a focus on the impact of such change on the experience of older individuals. In the context of increasing life expectancy nationwide, care alternatives for the elderly are required as traditional structures either no longer exist or are increasingly inadequate to accommodate the needs of older people who often have significant health problems. This paper focuses on the way Minangkabau families are addressing the needs of older relatives and the changing experience of these elderly themselves relative to the culturally expected norm of the past.

Special sauce in sesame seed buns: legal strategy and public policy in the fast-food industry

Lewis Bertly, a top lawyer with leading London law firm LL&B, is retained to defend a case with the potential to change the laws that affect fast-food marketing. Through its Department of Health, the Government of Australia seeks legislation for warning labels on fast-food packaging. To prepare a potential defense against this legal action for McDonald's Bertly is reviewing the history of legal action against the industry in fast-food labeling, nutrition and health. This history is important because the industry's actions through the decades in food nutrition and marketing are likely to be raised as evidence. He also hopes this will help him find a framework to map the way social expectations, a company's innovation, the legal system, and legislation combine to shape an industry. What he learns from this history and especially about the market leader, McDonald's, will inform how the defense approaches this case.

Palaeobiogeographic distribution patterns and processes of neochonetes and fusichonetes (brachiopoda) in the late palaeozoic and earliest mesozoic

The global palaeobiogeographic distributions of two resembling genera, Neochonetes and Fusichonetes (Brachiopoda), from the Carboniferous to Griesbachian are analysed. This analysis provides insight into the biotic response of two related genera to changing palaeoclimate, regional tectonics, and environmental crises. Neochonetes originated in the equatorial area in the Mississippian, and it mostly retained this position during the peak of the glaciation in the Carboniferous–Permian ice age (namely in the Pennsylvanian). Neochonetes then dispersed globally during the Cisuralian when the climate became warmer and the ice sheet started to retreat. In the Guadalupian and Lopingian, following the closure of the Ural seaway at the end of the Cisuralian and the regression at the end-Guadalupian, Neochonetes almost disappeared in the western part of Gondwana. Subsequently during the Lopingian the genus retracted to the middle- and low-latitude Palaeo-Tethys and Tethys. In comparison, Fusichonetes originated in the equatorial area in the late Guadalupian and was still present in that area in the Lopingian. Both genera occurred only in South China in the Griesbachian. It is inferred that this could be related, not only to the deteriorated palaeoenvironmental conditions (e.g., anoxia, global warming) leading up to the extinction of most of the Neochonetes and Fusichonetes species in other areas, but also to the better physiological adaptation of the smaller shells of Neochonetes and Fusichonetes species in South China.