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Growing human populations make it imperative for ecologists to identify strategies to conserve biodiversity in human-dominated landscapes, such as cities. Effects of urbanization on birds are particularly well-studied, but questions remain regarding the best conservation approaches. Debate about the relative utility of focusing conservation efforts on nature reserves versus developed lands has focused largely on comparing species abundance or presence, with few studies addressing underlying behavioral or demographic mechanisms. Here we evaluated differences in avian reproductive success in nature reserves and matrix habitats to test the assumption that nest predation is lower within areas protected from development. Specifically, we investigated 1) whether nest survival differed in replicated pairs of forest parks and residential neighborhoods and 2) whether differences in nest survival were associated with changes in which species most frequently depredated nests. From April–August 2007–2014, we monitored nests of two native birds, American robin (Turdus migratorius) and northern cardinal (Cardinalis cardinalis), and video-documented nest predators in paired forest-matrix habitats in the Columbus, Ohio metropolitan area. We found similar rates of nest survival in the two habitats for both robins (Χ21?=?0.715, p?=?0.398, n?=?741 nests) and cardinals (Χ21?=?0.926, p?=?0.336, n?=?1156 nests), but interactions between predators and prey differed. In particular, domestic cats (Felis catus) were over five times as likely to depredate cardinal nests in matrix habitats versus forest parks (Χ21?=?7.24, simulated p?=?0.010; nforest?=?3, nmatrix?=?7). Our results suggest that at least in some circumstances, nest success of native birds may be equivalent between nature reserves and adjacent residential matrix habitats, and thus residential neighborhoods may contribute positively to bird conservation in urban landscapes.  相似文献   
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Using behavioral self-regulation processes may facilitate exercise among older women with heart disease. Data from women in a heart disease-management program (n = 658, mean 73 years), was used to explore associations among exercise self-regulation components (i.e., choosing to improve exercise and observing, judging, and reacting to one's behavior) and exercise capacity. General linear models showed that choosing exercise predicted higher exercise self-regulation scores postprogram and 8 months later. In turn, these scores predicted greater improvements in exercise capacity concurrently and 8 months later. Interaction analyses revealed that the effect of self-regulation on exercise capacity was stronger among women who chose to work on exercise.  相似文献   
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We investigate two perspectives about the effects of reduced discrimination and greater social and economic opportunities on ethnic identity in rural areas of contemporary Guatemala. Our analysis contrasts the effects of new opportunities in Indigenous communities on language use and dress, using data from the 1995 Encuesta Guatemalteca de Salud Familiar (EGSF). While the use of both dress and language has changed substantially in recent years, language use has changed considerably more than dress. We conclude that, in this context, economic opportunities have not necessarily diminished ethnic solidarity, but may have instead reshaped it.  相似文献   
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Large oil spills are disasters associated with psychological effects for exposed communities. The amount of worry that individuals experience after a disaster may be influenced by many factors, such as the type and extent of exposure to disaster impacts, prior trauma, and sociodemographic characteristics. This study examined the nature and predictors of worry about ongoing impacts of the 2010 Deepwater Horizon (DH) oil spill reported by Gulf of Mexico coastal residents. A random sample of 2,520 adult residents of Gulf of Mexico coastal counties were administered a telephone survey in 2016, including items about persistent worry and exposure to DH impacts, prior trauma, residence at the time of the spill, and sociodemographic characteristics. Respondents varied in the amount of worry they reported about ongoing health, social, and economic impacts. Controlling for sociodemographic characteristics, higher exposure to the DH oil spill was related to higher levels of worry about ongoing impacts, with past traumatic events related specifically to worry about health impacts. Unexpectedly, those who moved into the region after the spill showed similar levels of worry to residents exposed to the spill, and higher levels than residents who did not recall being exposed to the DH oil spill. This study highlights the impact of the DH oil spill on coastal residents many years after the DH disaster. The findings underscore the need to examine multiple pathways by which individuals experience disasters and for risk researchers to close knowledge gaps about long-term impacts of oil spills within a multi-dimensional framework.  相似文献   
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Using narrative enquiry, this paper accesses the construct of identity through exploring resilience in newly qualified social workers based in statutory children's services. In seeking to avoid deficit‐based models of this role, this paper aims to present inductively the ‘voice’ of three social workers in a semi‐rural authority, storying the positive ways in which resilience has developed during their first year. Using the Grotberg resilience framework (1995) –‘I am, I have, I can’– as an analytical tool at the interface of personal, professional and organizational identities, we conclude that ‘I am’ and ‘I have’ are more important than the skills dimension of ‘I can’. Positive role models, trust, ‘managed’ optimism, flexibility of support in and beyond induction, and, crucially, self‐efficacy and space for reflexivity, are more prominent as sources of resilience and strong identity. The reflexivity, inspired by the process of narrative enquiry, is an important contributor to self‐efficacy. We propose that a positive view of growth and identity is preferable to deficit models in the context of the transition between the two ‘communities of practice’ and of the challenges of the workplace. Organizational approaches based on this view will be more likely to promote a sustainable workforce.  相似文献   
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Mortality Differentials by Marital Status: An International Comparison   总被引:20,自引:0,他引:20  
Although the greater longevity of married people as compared with unmarried persons has been demonstrated repeatedly, there have been very few studies of a comparative nature. We use log-linear rate models to analyze marital-status-specific death rates for a large number of developed countries. The results indicate that divorced persons, especially divorced men, have the highest death rates among the unmarried groups of the respective genders; the excess mortality of unmarried persons relative to the married has been generally increasing over the past two to three decades; and divorced and widowed persons in their twenties and thirties have particularly high risks of dying, relative to married persons of the same age. In addition, the analysis suggests that a selection process is operating with regard to single and divorced persons: the smaller the proportion of persons who never marry or who are divorced, the higher the resulting death rates.  相似文献   
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Abstract

This paper looks at the way the UK Post Office has developed a core trauma care programme that is capable of being adapted to meet the needs of three of its businesses. The core programme includes an introductory stage that is involved in the selection and education of the workforce and the promotion of the programme; crisis management; manager debriefing; psychological debriefing; trauma counselling; and a final stage involving the evaluation of the programme and following up traumatized employees. The core programme was tailored to the needs of each of the three Post Office businesses, using information on the business operation, culture and policies of the businesses in the light of the nature and range of the traumatic incidents that affect their workforce.  相似文献   
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