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Urbanization is a process that heavily alters marine and terrestrial environments, though terrestrial urban ecosystems have been studied far more intensively. Terrestrial studies suggest that urbanization can facilitate mesopredators by enhancing food and shelter resources and reducing predation pressure from apex consumers. This in turn has considerable consequences for ecological communities. We evaluated spatial distribution patterns and habitat-use of the marine mesopredator, giant Pacific octopus (Enteroctopus dofleini), relative to terrestrial urbanization intensity in Puget Sound, Washington, USA. Using field surveys and citizen-contributed data for E. dofleini, we examined whether: (1) Distribution was related to urbanization, (2) Abundance was related to the extent of benthic anthropogenic debris, and (3) Diet differed as a function of urbanization and den cover. Our results suggest that urbanization impacts may differ with depth. Mixed-effects logistic regression model estimates for the probability of occurrence increased with urbanization in deep-water (> 24 m), and decreased with urbanization in shallow water (< 18 m). Accompanying field surveys indicated that E. dofleini abundance was correlated with the number of benthic anthropogenic debris items, and that E. dofleini diets were not affected by urbanization intensity or den cover. Though E. dofleini may be synanthropic within certain urban environments, the mechanisms driving this pattern likely differ from those affecting common urban mesopredators on land, with den provisioning from man-made structures being more important than altered food resources. 相似文献
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Ego‐resiliency is an enduring psychological construct reflecting how individuals‐adapt to environmental stressors, conflict, and change which is linked to positive adjustment. Ego‐resiliency has not been examined in Latino youth, despite their high risk for mental health problems; nor have cultural precursors to ego‐resiliency been examined. Given these gaps, we examined whether familism values (supportive, obligation, and referent) were associated with ego‐resiliency and, in turn, depressive problems in Latino adolescents across two time points (N = 123, mean age = 11.53). Results indicated that supportive familism was associated positively with ego‐resiliency and negatively with depressive problems. Ego‐resiliency negatively predicted depressive problems across time, controlling for prior levels, suggesting that ego‐resiliency may have long‐term effects on depressive problems in Latino youth. 相似文献
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Bernie Carter Janette Grey Elizabeth McWilliams Zoe Clair Karen Blake Rachel Byatt 《Disability & Society》2014,29(6):938-952
Children who use wheelchairs have few opportunities to play sport with their able-bodied peers and siblings. This appreciative, qualitative study explored the experiences of children, families and stakeholders at a wheelchair sports club. Participant observation, research activities, focus groups and interviews were used. Sixty-three people participated (37 children, 14 stakeholders, 10 parents, two older siblings). Thematic analysis identified one unifying theme (realising potential) and four main themes: invisibility of disability; ambivalence and attraction of the chair; fun and fellowship; and thrills and skills. The Cheetahs created opportunities for meaningful participation in wheelchair sports for children with and without disabilities. 相似文献
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John Stillwell Martin Bell Marcus Blake Oliver Duke-Williams Phil Rees 《Journal of Population Research》2001,18(1):19-39
This paper explores the impact of net migration in Australia and the United Kingdom using measures of migration effectiveness
computed from period-age migration data for four consecutive five-year periods. Results reported in Part 1 of this paper (Stillwellet al. 2000) suggest that while the overall effectiveness of net migration at the scale of city regions has declined over the twenty-year
period in both countries, important geographical variations are evident. Part 2 considers how patterns of migration effectiveness
vary by age and presents a single classification of all the city regions on the basis of age-specific effectiveness. More
detailed analysis includes spatial patterns for particular age groups and net migration profiles of selected regions. Cohort
effects are shown to be important for explaining changes between time periods in these regions. 相似文献
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We examined the extent to which people's private attitudes to gay law reform are influenced by the attitudes of others. Ninety-six university students were told that they were either in a minority or in a majority relative to their university group on their attitudes to gay law reform. Contrary to a number of assumptions made in the social psychological literature, participants who supported gay law reform were more prepared to act in line with their attitudes than were those who opposed gay law reform. Furthermore, anti-gay law reform participants appeared to reassess their attitudes when they were told they were in a minority; in contrast, pro-gay law reform participants were unaffected by the group norm. This suggests that anti-gay law reform attitudes are softer and more easily influenced than are pro-gay law reform attitudes. The implications of these results for activists are discussed. 相似文献