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This paper contains a description of a new species of oribatid mite, Birobates hepaticolus sp. nov., from eucalypt woodland and rainforest in North Queensland, Australia. Adults and immatures of B. hepaticolus live completely enclosed within the ventral lobules of the corticolous liverwort Frullania ferdinandi-muelleri Steph. The ventral lobes provide a protected, moisture-buffered microhabitat on tree bark that would otherwise be subject to extremes of wetting and drying. Analysis of gut contents indicates that B. hepaticolus appears to feed on liverwort tissue. To our knowledge this is the first documented example of an association between an oribatid mite and a leafy liverwort based on the provision of food and habitat. The genus Birobates is redefined and diagnosed. [ABSTRACT FROM AUTHOR]

This paper outlines some of the ways early artefact collecting contributed to the definition of the Australian region now known and marketed as the 'World Heritage Wet Tropics'. While others have collected in this region, we focus on the collecting activities of Hermann Klaatsch and the work of Norman Tindale to explore some factors that contributed to their claims that certain artefacts represent a region and its history. We argue that these understandings of region and the past, along with the now widely dispersed artefacts, maintain a lively, albeit transformed, presence in current debates about Aboriginal regional culture, linking assertions of rights to lost and stolen cultural property with notions of large-scale environmental management within the 'Wet Tropics'. [ABSTRACT FROM AUTHOR]

Both the colonial encapsulation and post-colonial recognition of North Queensland's Aboriginal population have been achieved through legislative demarcation. This paper explores the way such demarcation has extended the influence of the state within local Aboriginal life-worlds, focusing on the State of Queensland's Aboriginals Protection and Restriction of the Sale of Opium Act 1897 and the Commonwealth's Native Title Act 1993. Drawing on ethnographic and historical material from Central Cape York Peninsula, and recent anthropological theorization of the state, I argue that anthropologists need to seriously consider Aboriginal claims about what Michel-Roiph Trouillot calls 'state effects'. But careful examination of these claims suggests that the state no longer simply imposes its projects on fundamentally distinct Aboriginal life-worlds. Not only is the state now deeply engaged within these life-worlds, it is also deeply interwoven into post-colonial Aboriginal subjectivities. [ABSTRACT FROM AUTHOR]

Interactions between catchment variables and sediment transport processes in rivers are complex, and sediment transport behaviour during high-flow events is not well documented. This paper presents an investigation into sediment transport processes in a short-duration, high-discharge event in the Burdekin River, a large sand- and gravel-bed river in the monsoon- and cyclone-influenced, semi-arid tropics of north Queensland. The Burdekin's discharge is highly variable and strongly seasonal, with a recorded maximum of 40 400 m3 s−1. Sediment was sampled systematically across an 800 m wide, 12 m deep and straight reach using Helley-Smith bedload and US P-61 suspended sediment samplers over 16 days of a 29-day discharge event in February and March 2000 (peak 11 155 m3 s−1). About 3·7 × 106 tonnes of suspended sediment and 3 × 105 tonnes of bedload are estimated to have been transported past the sample site during the flow event. The sediment load was predominantly supply limited. Wash load included clay, silt and very fine sand. The concentration of suspended bed material (including very coarse sand) varied with bedload transport rate, discharge and height above the bed. Bedload transport rate and changes in channel shape were greatest several days after peak discharge. Comparison between these data and sparse published data from other events on this river shows that the control on sediment load varies between supply limited and hydraulically limited transport, and that antecedent weather is an important control on suspended sediment concentration. Neither the empirical relationships widely used to estimate suspended sediment concentrations and bedload (e.g. Ackers & White, 1973) nor observations of sediment transport characteristics in ephemeral streams (e.g. Reid & Frostick, 1987) are directly applicable to this river. [ABSTRACT FROM AUTHOR]