The Impact of Urbanisation on Water Quality in the Lane Cove River,Sydney New South Wales: a Comparison of Urban and Non-Urban Catchments

The Lane Cove River drains an established urbanised catchment and is impacted by urban runoff, point sources of pollution from sewer overflows and leachate from a refuse tip. The Sydney Water Board conducted a three year water quality monitoring programme assessing the impacts of pollution. The findings are presented and the impact of urbanisation evaluated by comparing water quality in urban and non-urban catchments. Water quality in a near-pristine control creek was consistently better than the urban catchment in all weather conditions. During wet weather, water quality in urban creeks deteriorated significantly, although the control creek generally remained in a near-pristine condition. Poor water quality in urbanised reaches of the catchment has degraded the aquatic ecosystem, encouraged and sustained weed infestation of the riparian environment and restricted recreational use of the river.     

THE WRITING'S IN THE WALL: A REVIEW OF NEW PRELIMINARY APPLICATIONS OF ELECTRICAL RESISTIVITY TOMOGRAPHY WITHIN ARCHAEOLOGY

Natural processes are known to cause significant damage to archaeological monuments. In fact, the key to understanding the decay of building materials is the internal movement of water through the mineral matrix, which influences the distribution of chemical, physical and biological deterioration processes. Electrical resistivity tomography (ERT) was traditionally used as a surveying tool within archaeology, but a new high‐resolution technique that accurately traces the movement of moisture in building materials could provide a vital tool for understanding the decay of many archaeological monuments. This paper considers current progress, the shift of ERT from soil to rock research and the impact that this development could have on future conservation, using Hertford College (Oxford) and Neolithic rock art (Golden Gate Reserve, South Africa) as case studies.     

Screening Climatic and Non‐Climatic Risks to Australian Catchments

Emerging and future climatic change across the Australian continent has been identified as a significant threat to the successful sustainable management of the nation's water resources. However, the impacts of climate change must be viewed within the context of past, present and future climatic variability and human agency. A qualitative screening‐level risk assessment was undertaken for Australia's 325 surface water management areas by aggregating a suite of six relevant risk indicators. Four indicators addressed the antecedent conditions upon which future climate change will act. These included 50‐year trends in rainfall, the status of surface and groundwater development, and catchment condition. Two indicators addressed future drivers of supply and demand; specifically, projected changes in runoff and population. The results indicate that the management challenges currently experienced in Australia's population centres and key agricultural areas such as the Murray‐Darling Basin are likely to increase in future decades. Furthermore, the geographic distribution of net risk, inclusive of multiple biophysical and socioeconomic drivers, is more extensive than is suggested by consideration of surface water development and availability alone. Comparison of at‐risk catchments with the spatial distribution of various social and environmental assets identified a high degree of overlap among catchment risk and human populations, water storages, irrigated agricultural land, and wetlands of international significance. This suggests that the catchments of the greatest value are also those judged to be at greatest risk. Though considerable work remains in evaluating the security of Australia's water resources to climatic and other stressors, this study provides a first‐order scheme for prioritising the risks to which catchments are exposed and an assessment of how some key drivers are likely to interact to drive risk.     

THE FAMILY LIFE CYCLE, LEISURE ACTIVITIES, AND RESIDENTIAL AREA EVALUATION

Life cycle effects on the importance assigned to residential area attributes are examined empirically. The family life cycle is hypothesized to affect residential area aspirations through changes in the frequency and location of leisure activities. The results indicate that the importance of eight residential area attributes varies significantly with life cycle status. The family life cycle also affects participation in leisure activities. However, the initial hypothesis is not supported.
La relation entre le cycle familial et l'importance donnée aux caractéristiques du voisinage est examinée empiriquement. On suggère que le cycle familial affecte les désirs pour des caractéristiques du voisinage en changeant la fréquence et la localité des loisirs. On a trouvé que le cycle familial affecte l'importance des huit caractéristiques aussi bien que les loisirs. Les résultats ne soutiennent pas l'hypothèse de base.     

CONTEXTUALISING THE LARNAX: TRADITION, INNOVATION AND REGIONALISM IN COFFIN USE ON LATE MINOAN II–IIIB CRETE

Summary. This paper analyses coffin use in the tombs of Late Bronze Age Crete in terms of both mortuary traditions on the island and regional variations in cultural practices. It argues that the revival of coffin use in the Final and Post-palatial periods (in ceramic terms, Late Minoan II–IIIB) constituted a recourse to an earlier burial custom within negotiations of rapidly changing mortuary practices across the island. However, this ‘re-invention’ involved significant modifications to the form and significance of the coffin. The paper then explores spatial variations in choices of coffin types, as one potential window onto the issue of intra-island regionalism in social and cultural practices.     

MESOLITHIC AND NEOLITHIC (DIS)CONTINUITIES IN THE DANUBE GORGES: NEW AMS DATES FROM PADINA AND HAJDUČKA VODENICA (SERBIA)

Summary.   In this paper we present 17 new AMS dates from the Mesolithic–Early Neolithic sites of Padina and Hajdućka Vodenica and discuss the continuity and nature of occupation at them in the context of the Mesolithic–Neolithic transformations in the Danube Gorges region (north-central Balkans), c.10000–5500 Cal BC. The dates indicate long occupation sequences and help refine the stratigraphies of the two sites. They, also enable us to date architectural features, burial positions and bone/antler tools, and to further our understanding of the impact of the noted aquatic reservoir effect on radiocarbon dating of human and dog remains from this region. Finally, these dates suggest continuity of occupation at sites other than Lepenski Vir in the Danube Gorges at the time of the Mesolithic–Neolithic transition, c.6300–5950 Cal BC.     

Immigrants and homelessness—at risk in Canada's outer suburbs

Homelessness is a risk for growing numbers of immigrants. Largely as a result of low incomes, newcomers are more likely than the Canadian-born to spend over 50 percent of total household income on housing costs. Many newcomers suffer 'hidden homelessness'. They do not use shelters and other services, but share accommodation, couch-surf and rely on their social contacts for temporary and precarious housing. The adverse impact of low incomes on the housing experiences of Canadian newcomers is exacerbated in the outer suburbs of metropolitan areas where the supply of affordable housing is limited. This study explores the social backgrounds and housing experiences of immigrant households that are vulnerable to homelessness in outer suburbs through analysis of special tabulations from the 2001 census for York Region and interviews with representatives from local community organisations serving immigrant and low-income populations. The initial findings confirm that a high proportion of newcomers in York Region are at-risk of homelessness during the first 10 years of residence in Canada. Although renters are more vulnerable than homeowners, a substantial percentage of newcomers who are homeowners pay more than 30 percent of their total income on housing costs. The shortage of affordable rental housing in the outer suburbs exacerbates the impacts of low incomes, immigration status, household size and ethnoracial identities on immigrants' housing.     

Perceptions of Risk among Households in Two Australian Coastal Communities

There is limited knowledge of risk perceptions in coastal communities despite their vulnerability to a range of risks including the impacts of climate change. A survey of 400 households in two Australian coastal communities, combined with semi‐structured interviews, provides insight into household perceptions of the relative importance of climatic and non‐climatic risks and the subsequent risk priorities that may inform household adaptive action. In contrast to previous research, the results demonstrated that geographic location and household characteristics might not affect perceptions of vulnerability to environmental hazards. However, past experience was a significant influence, raising the priority of environmental concerns. Overall, the results highlight the priority concerns of coastal households (from finance, to health and environment) and suggest to increase the profile of climate issues in coastal communities climate change strategies need to better demonstrate links between climate vulnerability and other household concerns. Furthermore, promoting generic capacities in isolation from understanding the context in which households construe climate risks is unlikely to yield the changes required to decrease the vulnerability of coastal communities.