Flood risk and inequalities between ethnic groups in the floodplains of England and Wales

Previous research has shown that many vulnerable communities experience disproportional exposure to flood risk. This paper, though, is the first to look at broad ethnic/racial group differences in the United Kingdom. It contends that differences in culture and language, especially those of new immigrants, bestow vulnerabilities on such communities, resulting in a lack of knowledge that enables people to be aware, to be prepared, or to recover expediently after a flood emergency. Using UK 2011 Census data and Environment Agency flood maps, the paper demonstrates that it is the non‐white communities in Wales that confront the most disproportionate level of flood risk: 23 per cent as compared to 11.4 per cent of their white neighbours. In contrast, the difference in flood risk between white and non‐white ethnic/racial groups in regions of England is within a range of plus or minus two per cent, except for in Yorkshire and The Humber where white populations face a much greater risk of flooding.     

Survival and Recruitment of Captive-Reared and Wild-Reared Takahe in Fiordland, New Zealand

Captive rearing for release back into the wild is considered a useful management tool for endangered species because it can potentially increase the rate of recruitment by bypassing the early, high-risk stages in an individual's life history. In evaluating the benefits of captive rearing to conservation, it is important to monitor the survival rate of animals after release, to be sure that they have the skills necessary for survival in the wild. Using radio telemetry, we compared the movement and survival of captive-reared Takahe (  Porphyrio mantelli), a large flightless rail endemic to New Zealand, to wild-reared Takahe in the rugged mountains of Fiordland over a 5–year period. The results indicated that captive-reared birds survived at least as well as wild-reared birds. Survival of wild-reared Takahe up to 1 year of age, which is prior to the release of captive-reared birds, was poor over two winters marked by particularly cold temperatures, which made the benefits of captive rearing more pronounced. Differences in post-release movements and habitat selection of the two groups did not have a detrimental effect on survival rate of captive-reared birds. Although there was no difference in the survival rate of captive-reared females versus males, eight out of nine (89%) surviving females have formed pairs since their release compared with only two of eight (25%) males. This unexpected result suggests there may be a shortage of females in the wild population. We conclude that captive rearing for release back into the wild increases the adult Takahe population in Fiordland.     

Influence de la surface du tapis cellulaire dans la numeration des virus selon 2 techniques comparees : Plages et N.P.P. utilisant au moins 40 inoculums par dilution

For counting viruses, the plaque method and the M.P.N. method with at least 40 inoculum are both used with the same success. The precision of the results is quite equivalent for the two methods with the same volume inoculated whatever the total surface of KB cells.     

The livelihoods gap: responding to the economic dynamics of vulnerability in Somalia

A 'livelihoods gap' has become evident in international aid delivery to Somalia. Existing aid interventions do not address the economic dynamics of vulnerability resulting from Somalia's long history of predatory development and asset stripping. To prevent poor households' regular return to sub-subsistence income levels after a brief period of plenty, this paper argues that aid agencies should reorient and expand existing interventions to assist poor households to capitalise on temporary improvements in environmental and security conditions. As a corollary to emergency relief and efforts to construct state institutions, it is necessary to devise country-wide interventions that will rebuild household asset bases by protecting savings during times of stress and ensuring that markets benefit poor producers.     

Environmental inequality and flood hazard

This paper reports findings from research conducted for the Environment Agency1 investigating the social distribution of the risk of flooding in England and Wales. Following a broadly outcome based analysis, and using socio-geographic modelling techniques and the 1991 Census, the social class characteristics of the population at risk from flooding were explored and compared with the population considered not at risk as a means to uncover any evidence of social inequality. The Environment Agency indicative flood plain maps (1 in 100 year return for fluvial and 1 in a 200 year return for tidal flooding) were used to identify at risk areas. Two different methods of capturing the at risk population were employed; one based on census enumeration districts and the other using surface population models which redistribute the area population over a grid surface of the area of interest. The two methods provide completely different results. The enumeration district method indicates that those in higher social classes are the most likely to be exposed to flood hazard while the grid method indicates that it is those in the lower social classes who are most at risk. We suggest that the grid method provides a more accurate analysis but highlight the significant effect that the choice of areal unit and spatial analysis can have on conclusions about the extent of any inequality in vulnerability to flooding.     

On-road driving evaluations: a potential tool for helping older adults drive safely longer

PROBLEM: This paper explores the potential use of on-road driving evaluations as a tool for helping older adults extend their safe driving years. METHOD: Three separate research activities were carried out. The first was a national telephone survey of current and former older drivers. The results of this survey provide information relevant to the potential market for on-road driving evaluations. The second was a series of focus groups with potential stakeholders in the process: driver educators, occupational therapists, and physicians. These groups explored the feasibility and requirements of offering on-road driving evaluations to the wider public. Supplemental data were also collected from a mail survey of driving schools nationwide. RESULTS: Based on the results of these efforts, a number of recommendations are presented for expanding the availability of on-road driving evaluations, specifically to help older adults make more responsible decisions about continuing or stopping driving, and more generally to help them drive safely longer.     

Increasing coping resources at work: A field experiment to increase social support,improve work team functioning,and enhance employee mental health

Correlational studies have identified worksite coping resources such as social support and perceived control, and have suggested a positive role for such resources in employee stress processes. However, little experimental evidence has demonstrated the causal role of worksite coping resources in improving mental health, nor how worksite coping resources can be enhanced. This paper reports the results of a field experiment intended to provide such evidence. Human service workers participated in a theory-driven training program designed to increase individual and group psychosocial coping resources and individuals' abilities to use those resources when coping with job demands. The inclusion of selection variables in models used to estimate the impact of the intervention controlled for selection biases and also allowed for the assessment of the impact of the training on those workers identified as most prone to turnover and on those most likely to participate in such an intervention. Results indicated that the program enhanced the work team climate and reduced depresssive symptoms and somatization in those most at risk for leaving their jobs. The program was also effective in increasing the amount of supervisor support received on the job and strengthening perceptions of coping abilities in those workers most likely to participate in the program.     

Response of Winter Birds to Drought and Short-Duration Grazing in Southeastern Arizona

Abstract: In a grassland–oak savanna in southeastern Arizona, we compared vegetative ground cover and bird populations between a 29-year livestock exclosure and an adjacent cattle ranch that was managed according to the principles of holistic resource management, including short-duration rotational grazing. The study took place in the winter after a 2-year drought and 1 year after the drought ended and stocking densities were reduced. During the first winter, grasses on the livestock exclosure were taller (4.4 times) and had higher basal area ground cover (2.5 times), canopy cover (2.2 times), and reproductive canopy cover (10 times) than in the grazed area. These differences persisted into the second winter but at lower levels. As a group, 19 species of ground-foraging, seed-eating birds (e.g., doves, quail, sparrows, towhees) were 2.7 times more abundant on the exclosure than on adjacent grazed grasslands during the first winter. These same species were 1.7 times more abundant on the exclosure during the second winter and were 2.9 times more abundant on both sites combined after the drought had ended. A second group of 24 avian species with different foraging ecologies (e.g., predators, frugivores, arboreal insectivores) did not differ between treatments or years. High-density, short-duration rotational grazing, coupled with a drought, left the land in a substantially denuded condition through two winters and negatively affected a variety of resident and migratory birds dependent on ground cover and seed production for over-winter survival.     

The effects of habitat loss, fragmentation, and community homogenization on resilience in estuaries.

When changes in the frequency and extent of disturbance outstrip the recovery potential of resident communities, the selective removal of species contributes to habitat loss and fragmentation across landscapes. The degree to which habitat change is likely to influence community resilience will depend on metacommunity structure and connectivity. Thus ecological connectivity is central to understanding the potential for cumulative effects to impact upon diversity. The importance of these issues to coastal marine communities, where the prevailing concept of open communities composed of highly dispersive species is being challenged, indicates that these systems may be more sensitive to cumulative impacts than previously thought. We conducted a disturbance-recovery experiment across gradients of community type and environmental conditions to assess the roles of ecological connectivity and regional variations in community structure on the recovery of species richness, total abundance, and community composition in Mahurangi Harbour, New Zealand. After 394 days, significant differences in recovery between sites were apparent. Statistical models explaining a high proportion of the variability (R2 > 0.92) suggested that community recovery rates were controlled by a combination of physical and ecological features operating across spatial scales, affecting successional processes. The dynamic and complex interplay of ecological and environmental processes we observed driving patch recovery across the estuarine landscape are integral to recovery from disturbances in heterogeneous environments. This link between succession/recovery, disturbance, and heterogeneity confirms the utility of disturbance-recovery experiments as assays for cumulative change due to fragmentation and habitat change in estuaries.