Common factors influence bee foraging in urban and wildland landscapes

Bees are important flower-visiting insects that display differential occurrences at food resources throughout urban and wildland landscapes. This study examined the visitation rates and foraging patterns of eight taxonomic groups of bees that are common to California poppies, Eschscholzia californica, in both landscape types. Bee occurrence was documented in relation to floral resource characteristics (patch area, poppy coverage, and poppy density), local landscape characteristics (distance to the wildland-urban interface, distance to riparian areas, distance to green space, and land use), and regional landscape context (urban versus wildland). Similar abundance and richness measures were recorded at both urban and wildland poppy patches, but community composition varied in each landscape. Bumble bees were more abundant at poppies in the wildland whereas species in the family Halictidae (sweat bees) were more abundant at poppies within the urban landscape. Resource patch size and density consistently correlated with increased bee presence for all bee types foraging in the wildland. Individual patterns of occurrence in the urban landscape were somewhat divergent; the foraging dynamics of larger bodied-bees (Bombus vosnesenskii and Megachile species) correlated significantly with resource patch size and density, whereas smaller-bodied bees (family Halictidae and Andrena species) were influenced by landscape characteristics such as distance to the wildland-urban interface and distance to riparian areas. In summary, the surrounding landscape had an influence on community composition, but the magnitude of the floral resource present at a site and factors relating to foraging energetics were dominant drivers of local occurrence. These results suggest that management strategies that provide dense and abundant floral resources should be successful in attracting bees, irrespective of their location within the urban matrix.     

Indiana bat roosting behavior differs between urban and rural landscapes

Urban Ecosystems - Urbanization may negatively affect forest obligate bat species. We compared the roosting behavior of federally endangered Indiana bats (Myotis sodalis) in a fragmented site,...     

Reporting and founding of child neglect in urban and rural communities

The community context in which child abuse and neglect takes place may influence both reporting and outcomes of investigations into such incidents. This study examines and contrasts urban versus rural community perceptions of neglect by lay citizens and protective service workers.     

Health maintenance antecedents among older citizens in rural and urban communities

The evidence is clear that rural older people in most nations are less physically healthy than their urban counterparts. Research suggests that such differences may be due more to lifestyle characteristics, biological factors and environmental conditions than to access to, or utilization of, medical services. Utilizing a statewide sample of Idaho residents this study compares the characteristics of those people associated with a disease prevention/health maintenance model and those associated with the medical or disease oriented model. Results show some clear differences in characteristics between people utilizing the two models of health care.     

Breeding performance of an apex predator,the peregrine falcon,across urban and rural landscapes

Urban environments present wildlife with major challenges and yet surprising numbers of species have colonised towns and cities globally. Despite the growing realisation that urban centres can be important habitats for wildlife, why some species do better than others in urban environments remains poorly understood. Here, we compare the breeding performance of an apex predator, the peregrine falcon (Falco peregrinus), in urban and rural environments, and test whether variation in reproductive success between and within environments is driven by prey. Historical breeding data were collected from raptor study groups across Great Britain between 2006 and 2016, from 22 urban and 58 rural nest sites, involving 101 and 326 nesting attempts, respectively. Prey density, biomass and diversity around the individual nests was estimated using modelled estimates from a national bird census. Urban peregrines produced more fledglings and had a higher overall nesting success (i.e. whether a nesting attempt was successful or unsuccessful) than rural peregrines. Prey density and biomass were significantly higher, and diversity significantly lower, in the urban sites, and explained the variation in reproductive success within both the urban and rural environments. Therefore, urban environments in Great Britain appear to provide peregrine falcons with superior habitats in terms of prey availability compared to rural habitats. We conclude that some apex predators can benefit from urban environments and that urban planning has the potential to benefit biodiversity across many trophic levels.

     

Woody plant communities along urban,suburban, and rural streams in Louisville,Kentucky, USA

Anthropogenic changes in land use and cover (LULC) in stream catchments can alter the composition of riparian plant communities, which can affect ecosystem functions of riparian areas and streams from local to landscape scales. We conducted a study to determine if woody plant species composition and abundance along headwater streams were correlated with categorical and continuous LULC and environmental variables along an urban-to-rural gradient. These variables were calculated at different spatial scales (subcatchment level and within 0.5 and 1 km radii of plots) and used % impervious surface cover (ISC) and finer scale LULC classification levels to determine their ability to explain species composition, diversity, abundance, non-native provenance and wetland indicator status of four plant strata—canopy tree, tree sapling, tree seedling and shrub. At all scales, we found distinct riparian woody communities within land-use categories, with significant differences among shrub species. Fine-scale land-cover variables correlated with species composition of shrub, tree sapling and tree seedling strata, but not the canopy tree stratum. Celtis occidentalis and Acer negundo were ubiquitous but dominated riparian areas surrounded by development, while Asimina triloba was associated with forested rural riparian banks. Non-native shrubs, Lonicera maackii and Euonymus alatus, were indicative of areas surrounded by development, while the native shrub, Lindera benzoin, was associated with deciduous forest. Negative factor-ceiling relationships between canopy tree, sapling and tree seedling densities and % ISC were found, with abrupt declines above approximately 30 % ISC. Facultative wetland shrubs were not found above 30 % ISC. Streambank height, which was strongly negatively correlated with depth to the water table and positively correlated with cumulative catchment area, was negatively correlated with facultative wetland tree and shrub species. In addition, riparian tree sapling and seedling densities declined as the abundance of Lonicera maackii increased.     

Psychological factors that influence traumatic injury occurrence and physical performance

This 9 month prospective study, conducted at the US Army Sergeants Major Academy (USASGMA), examined the association of selected psychological variables (e.g., measures of tension/anxiety, sleep disturbance, Type A behavior pattern) with injury occurrence and physical performance in 126 soldiers. ANOVA and logistic regression analyses revealed significant relationships between: 1) Traumatic injury occurrence and mean tension/anxiety scores, 2) Mean self-reported sleep disturbance scores and traumatic injury occurrence, 3) The Type A behavior pattern (abbreviated Jenkins Activity Survey) and number of sit-ups repetitions completed in 2 minutes, one component of the Army Physical Fitness Test (APFT), 4) The Type A behavior pattern and total score APFT. No significant associations were found for mean tension/anxiety scores and overuse injuries, or Type A behavior pattern and two mile run time or number of push-up repetitions completed in 2 minutes. These data suggest traumatic injury occurrence is influenced by tension/anxiety and disturbances in sleep habits. Additionally, individuals with higher Jenkins Activity scores (characteristic of the Type A behavior pattern) perform better physically.     

城市社区文化建设的发展思路

社区作为城市中的基层组织,它的文化建设水平在一定程度上反映着城市的文化发展水平.社区文化是一种地域性的群众文化形态,它的文化行为的构成体现了社区居民的价值观、文化传统、社会心态以及审美情趣.搞好社区文化建设,有利于提高居民的精神境界,满足居民的精神需求,提高居民的文化素质,增强城市的综合竞争力,为经济发展和社会进步提供精神动力和智力支持,使城市快速持久地发展下去.     

Detecting the scales at which birds respond to structure in urban landscapes

Little empirical information exists about how birds respond to urban landscape structure across multiple scales. We explored how the variation in percent tree canopy cover, at four different scales, affected the abundance of bird species across various urban sites in North America. Bird counts were derived from previous studies, and tree patches were measured from aerial photographs that represented areas of 0.2 km², 1.5 km², 25.0 km², and 85.0 km². At each of the four areas, we conducted regressions between bird counts and percent cover of various tree patch sizes. From these analyses, we determined the area (called the best prediction area—BPA) and the patch size (called the best patch size—BPS) that accounted for a significant amount of the variation in bird counts, beyond the variation accounted for by these parameters measured at other scales. BPA and BPS were calculated primarily to take into account the high degree of collinearity that existed among the amount of tree canopy cover measured across the four scales.We calculated BPA and BPS values for a variety of bird species and ascertained whether larger species had relatively larger BPS and BPA values. In the spring, middle-sized to large birds (16.6 g–184.0 g) had relatively larger BPS values than did smaller birds (3.2 g–16.5 g), but in the summer, the largest birds (61.7 g–576.0 g) had small BPS values. Spring BPA values showed a similar result but summer BPA values did not. A majority of birds of all sizes had summer BPA values at the finer scales of 0.2 km² and 1.5 km². Overall, body size was an approximate predictor of the area and patch size at which a species responds to trees in a landscape, but many exceptions did occur. These exceptions could be related to a variety of factors, one being the difficulty in relating human-biased measurements to avian measurements of a landscape. The method described in this study will help researchers design multi-scale studies to address the effect of landscape pattern on different animal species.     

Flight initiation distance changes across landscapes and habitats in a successful urban coloniser

Urban Ecosystems - Urbanisation is a major land use change that introduces novel sources of disturbance and risk into an ecosystem. Successful urban species modify their fear behaviour in response...     

Search activity in social agencies: institutional factors that influence policy analysis.

Despite admonitions that agencies should be more deliberative in their decision procedures, there has been little inquiry regarding the extent to which social agencies actually engage in surveillance of policies and procedures pertaining to the structure and shape of agency programs, deployment of personnel, and response to the needs of clientele. In this survey, 167 executives from a cross section of social agencies in Los Angeles County were asked to describe the extent to which organizational participants engage in search activity to assess existing policies in the context of possible alternatives. Findings suggest that, while technical planning competence and orientations of executives toward planning may contribute, a number of contextual factors importantly influence the extent to which search activity is utilized; these include selected characteristics of the executive, the nature of organizational tasks, the extent to which search activity is legitimated within the organization through resource and other supports, and selected characteristics of the organization. The findings suggest that a combination of direct and indirect strategies must be utilized to promote planning in social agencies.     

Children's subjective well-being in rural communities of South Korea and the United States

The study examined subjective well-being of 10- to 12-year-old children from rural South Korea (n = 489) and rural United States (n = 1286) using the Children's Worlds Survey within the framework of the ecological, relationship-based model of children's subjective well-being. Applying Structural Equation Modeling to the analysis, a large proportion of the variance was explained and children's subjective well-being was predicted in both countries by microsystem factors of family relationships, parent involvement, and school quality, and individual factors of age (younger), and gender (male). Additional microsystem factors predicting subjective well-being were neighborhood quality in South Korea, and peer relationships in the United States, which may reflect contextual influences of collectivistic (South Korea) and individualistic (United States) macrosystems.     

From behind dikes and dunes: communities that care in the Netherlands

This paper will provide a general overview of the implementation of the Communities that Care (CtC) programme in the Netherlands. It outlines the socio-historical development of the initiative and considers the rationale and starting point for the Dutch experiment and the tools used in the process. Attention will also be paid to the implementation of CtC and some of the problems met in trying to introduce the CtC scheme. The final part of this paper will consider the main outcomes of the first (process) evaluation of the experiment.     

Othering the rural: About the construction of rural masculinities and the unspoken urban hegemonic ideal in Swedish media

Studies within the field of rural geography have lately to a noticeable extent enriched the theme of the creation of masculinities and femininities focussing on social constructions of the rural, as well as social constructions of gender. In this study I aim to discuss some expressed discourses of the rural in order to illuminate the power relation between the urban and the rural and the spatial implications of the construction of masculinities and femininities.Taking three Swedish television productions as a point of departure, I will argue that an urban hegemony exists and that the programmes reveal how rural masculinities are constructed. The aim is firstly to add a spatial dimension to the constructions of masculinities, and secondly to show how media builds up and emphasises a gap between the rural and the urban in these constructions. Cutting-edge media is of interest, as it is active in reproducing certain practices and also in identifying who is following the norm and who is deviating from it. The three television productions highlight the construction of rural masculinities in terms of seeking help and being ‘backward’; that rural men are unequal and traditional as well as deviating and out of place.     

Effective support for lesbians in rural communities: the role of psychotherapy

Most research involving lesbians has been conducted using urban or suburban samples. However, the challenges lesbians face in their rural communities differ from those encountered by lesbians in urban areas. Lesbians in rural areas face potential isolation due to the lack of a visible gay community, an overall lack of services and resources, and an often heightened experience of stigma. Rural areas tend to have a more conservative political climate with an emphasis on fundamentalist religious beliefs. Due to such strong heteronormist pressures, lesbians who decide to come out to their rural communities often face justifiable fears surrounding possible discrimination from employers, religious organizations, schools, and even their friends and family members. Therapists who work with lesbians in rural areas should be prepared to help their clients face and successfully deal with many unique challenges.     

城乡结合部交通优化机制及其规划设想

随着社会经济发展,我国城市化发展速度不断加快,城市规模不断膨胀,同时,城市形态、结构和功能也处于不断演化之中。城市与城市、城市与乡村间的人流、物流、能流和信息流等规模大且日益频繁。因此,迫切需要高质量、高速度和多层次的交通出行方式连结城市与城市、城市与区域。了解和研究城乡结合部交通发展机制,有机疏散城市交通压力,保证城市集聚效应和扩散效应畅通无阻,     

Evaluation of the All Stars Program: student and teacher factors that influence mediators of substance use

The authors examined the relationship between students' perceptions of a problem behavior prevention program, All Stars, and changes in the program variables. Three factors--Program Enjoyment, Student Engagement, and Teacher Relationship--were used to predict changes in the four variables targeted by the All Stars program. Student Engagement was related to greater changes in student idealism, commitment, and bonding. Program Enjoyment was related to positive changes in student idealism and normative beliefs. Teacher Relationship had little impact on the program variables. Students who were taught All Stars by regular classroom teachers reported greater Program Enjoyment and Student Engagement than students taught by health education specialists.