Carabid beetles in green infrastructures: the importance of management practices for improving the biodiversity in a metropolitan city

Green infrastructure in urbanized areas has a dual purpose that achieves both sociological and ecological goals. To benefit society and the urban ecosystem, green infrastructure should be effectively managed. We investigated carabid diversity and assemblage structure as indicators of biodiversity in green infrastructures in a rapidly developing urban area to identify the habitat’s values. In addition, we attempted to reveal the effect of environmental variables (e.g., vegetation structure, soil, and disturbance) that strongly contribute to carabid diversity and assemblage structure. Of the collected organisms, 6,154 individuals representing 20 carabid species were identified in the green infrastructure. Those species with flight ability and that were found in dry habitats were widely distributed and dominated green infrastructures. Carabid assemblages changed significantly in response to management practices. These changes were both positive and negative, with the negative changes increasing the instability of the carabid assemblages through the destruction of their habitat. Other factors, such as the presence of original habitat, habitat age, and habitat succession, also had a considerable effect on carabid diversity. We revealed that management practices prevented habitat succession, and these interactive effects determined carabid diversity and structure in green infrastructures.     

Analyzing the pattern and connectivity of urban green spaces: A case study of Izmir, Turkey

The primary concerns in this study were to quantify the connectivity and green space pattern using landscape metrics (PLAND, NP, AREA_MN and CONNECT) in the central districts of the city of Izmir. The primary research materials included thirteen 1:25,000 scale standard topographical maps and IKONOS satellite image with 1 m resolution. The PLAND scores revealed that while the urban fabric occupied almost 26 % of the study area, the urban green spaces covered only 1.45 %. This was also the lowest score in proportion to the areas of other land-use/cover classes. Furthermore, the results of NP and MPS indicated that the configuration of urban green spaces was very patchy and highly fragmented. Likewise, using CONNECT, the overall connectivity score of urban green spaces was 0.12, which was the lowest score of all areas measured the metrics. The Güzelbahçe district seemed to hold the most promise for connectivity, with a CONNECT score of 3.75. On the other hand, the Bornova district presented the least promising case in terms of connectivity, with a score of 0.59. In the study area, the correlations between the size of the districts/built-up areas and the CONNECT scores of the urban green spaces were found to be “non-significant” (P?<?0.01). The ultimate goals were to increase the amount of systematically planned urban green spaces and set up a green infrastructure in Izmir. In the case of Izmir, a master planning approach, which uses a systematic and comprehensive method to guide urban green spaces, is necessary to develop planning and design strategies for fully functional and multi-purpose urban green space systems.     

Expectations and reality: a case study of return migration from the United States to Southern Italy

A summary of Italy's emigration flows shows that Southern Italy sent her people abroad in great number, and, at the same time, return migration to Italy has been characteristic of a minority, e.g., an estimated 3000 from the US alone, 1964-68. Italy's modernization proceeded unevenly, the South remaining agricultural and for the most part, economically backward. Any form of identification with Italy as a country did not affect the Southern peasant thus preparing his/her way to emigrate as soon as any opportunity presented itself. Due to all the conditions which facilitated emigration from Italy on an individualistic and nonideological basis and without an understanding of the economic forces pushing the emigrant out, and in view of the lack of understanding of how the New World economy of the US was constituted, it is no surprise that the return migration of some remained as much ad hoc and based solely on individual motivations as was the emigration. The 2 fundamental approaches to the concept of immigrant both start by considering the immigrant in his/her new situation. 1 approach views the immigrant's success in the new situation as dependent upon acquiring values and patterns of behavior which would resolve his/her problems in the new society. According to the other approach, in order to resolve the problems of his/her new situation the immigrant must become critically aware of the consequences of his/her actions. The 1st view of conceiving integration has been prevalent, particularly in the study of international migration. And, mass migration from Italy, from the emigrant's perspective, is connected to a repeatedly unsuccessful search for economic success and failure to reach prevailing cultural objectives. The act of emigration, of abandonment, may thus be seen as the resolution of the disparity between the means at the emigrant's disposal and the objectives he/she seeks. The great majority succeed but some fail, and if they have a home and family to return to, they begin to think of returning. Returned migrants interviewed experienced an abrupt passage from a rural to an urban and industrial world. Few of the immigrants whose background was in a fa rm occupation engaged in farming upon arrival in the US. The factor determining whether the immigrant surmounts the problems of the 1st phase of his/her experience is his/her work. If the work the immigrant has found makes him/her part of the production process, the money earned makes him/her part of the consumption process. And, this is the 1st turning point in the experience as an immigrant. A return of conservativism is given when the immigrant continues to consider his/her earnings and investments in terms of the traditional scheme appropriate to the home country. Return of innovation is the term given to those who were unwilling or unable to accept fully their expected position in the new society and tended to detach themselves, even to the point of return to the mother country. The consequences of returns to the native society are summarized. In sum, it appears that returned migrants cannot function as vehicles of social development.     

Urban ornamental trees: a source of current invaders; a case study from a European City

Human made habitats are considered to be important hotspots of biodiversity of native as well as alien plant species. Due to high propagule pressure caused by human activities they serve as a source of introduction of alien plant species. We used the database of planted ornamental trees and shrubs for Brno, Czech Republic, to determine the significance of introduction effort given by intensity of planting as a factor in woody plant naturalization. Of all planted woody taxa, 15% were recognized as spontaneously growing in the urban area and there was a significant relationship between the number of planted individuals and the ability of a species to spontaneously occur in the urban area. The most often spontaneously escaping species originated in Europe (55%), followed by neophytes from North America (21%) and Central and Eastern Asia (14%). Although only a minor portion of planted woody species is able to escape from cultivation, this still could represent a potential risk for the native vegetation.     

Quantifying potential contributions of green facades to environmental justice: a case study of a quarter in Berlin

Urban Ecosystems - The potential of green facades (GFs) to enhance environmental justice (EJ) has not been quantified so far. EJ in Berlin, Germany is assessed by the core indicators (1) noise...     

Urban ecosystem management and change during the past millennium: a case study from New York City

Changes in a deciduous forest and salt marsh ecosystem, Hunter Island, New York City, are related to management over the past millennium. Sequential methods, fossil pollen analysis, map and aerial photography series, and vegetation resampling were performed to supplement the historical and archaeological records. The enhanced ecosystem management history provides an expanded context to examine management planning alternatives.Siwanoy native Americans utilized Hunter Island to provide fuel, land for corn planting, and living space through cutting forests in at least the northeast portion of the island. The fossil pollen record indicates that about the time of site abandonment, the Siwanoy planted the forest opening with hickory. Dutch colonial settlers protected forest in the area, but later the island's forest was cut for the British Navy during the American Revolution. John Hunter created a gentleman's farm on the island beginning in 1812.The New York City Parks Department purchased Hunter Island in 1888 and permitted social agencies to clear trees for recreation during the next 46 years. The chestnut blight eliminated American chestnut from the forest in 1908, and at the same time a hickory bark beetle infestation decimated the hickory population. A survey in 1934 showed that the northeast portion of the Island contained a forest, dominated by oak and yellow poplar, and a field. The island became a day-use picnic site in 1943, and for this purpose all the woody plants with stems less than 10 cm in diameter were removed.Aerial photography demonstrated a trend of forest replacing field over the past century. A resurvey of the northeast section of the island in 1988 revealed that oak and yellow popular remained dominant in the old forest, and the field became a hickory and sassafras stand. The hickory dominance, which is typical of Hunter Island, is unusual for New York City forests and could be related to native American plantings over 700 years ago. The management plan for Hunter Island is focused on preservation of the field and forest legacy of the recent recreation period. Instead of preserving an environmental patchwork common in New York City parks, an alternative management focus could enhance the hickory forest component to represent the former native American cultural setting.     

Effects of long-term landscape dynamics and city growth on biodiversity in the Mediterranean: the case study of Montpellier,France

In the Mediterranean, long-term land-use changes have resulted into landscape mosaics composed of very few ancient woodland remnants scattered across extended post-agricultural woodlands. Patches of ancient woodlands are now suffering rapid urban growth that reduces their area and impact their associated biodiversity. Here we use the case study of Montpellier, one of the most dynamic cities in France, to 1) characterize temporal changes in land covers (between 1860 and 2006) in its area, and 2) using two guilds of fungal bioindicators (i.e., polypores and lichens), to compare biodiversity stakes between ancient and secondary Mediterranean woodlands. We used a combination of historical maps, archives, fungal collections and field survey in eight Quercus ilex patches (4 ancient versus 4 recent replicates) to reconstruct landscapes dynamics and assess biodiversity changes. From the 19th to the 21st century, over half (52.4%) of the ancient woodlands within Montpellier were replaced by other land covers, mainly by urban equipment, while secondary patches (16.8% of the total area) were naturally established. Remaining ancient woodlands show multi-layered vegetation made of multi-secular Pinus halepensis dominating a dynamic understorey made of Quercus ilex and various Mediterranean shrubs. Polypores, but not macrolichens, tended to differ in community composition between ancient and recent woodland patches, with the highest diversity found in ancient woodlands. This study highlights that urban woodland patches of contrasted histories harbour distinct biodiversity stakes to be included in urban planning and provide valuable areas to evaluate biodiversity patterns and dynamics.     

Analysis of the spread of Rhynchophorus ferrugineus in an urban area,using GIS techniques: a study case in Central Italy

Urban Ecosystems - The spread of the red palm weevil is now a very severe problem on a global scale. In this paper, we investigate its spread during the 2007–2013 period in a coastal urban...     

Urban open spaces from a dispersal perspective: lessons from an individual-based model approach to assess the effects of landscape patterns on the viability of wildlife populations

Green areas drawn on a city plan represent open spaces that have different meanings for humans and wildlife. Diverse kinds of green may influence species viability in urban environments. It is necessary to understand what those areas mean for wildlife populations and how land-use changes affect habitats and movements for making scientifically defensible planning and design decisions. My objective was to demonstrate how open space and urban development patterns affect the viability of wildlife populations in urbanizing landscapes from a movements perspective. Eight scenarios for 2060 for an urbanizing area near Portland, Oregon combined four open space (none, corridors, parks, and network) with two urban development patterns (compact and dispersed). Dispersal model HexSim simulated three target species – Red-legged frog (Rana aurora aurora), Western meadowlark (Sturnella neclecta) and Douglas squirrel (Tamasciurus douglasii) – movements on those scenarios to compare and contrast sustained populations to the ca. 2010 baseline landscape. Network scenarios presented the largest number of frog breeders. Greenway scenarios showed the largest populations of squirrels. Park and network scenarios sustained viable populations of meadowlarks, but park scenarios performed best. Compact development scenarios performed best for most indicators, while dispersed development scenarios performed better for meadowlarks. Network scenarios performed best when considering the collective of species. Networks presented more diverse habitats, sustaining higher diversity of species. For plans to sustain more species, more comprehensive and diverse habitats must be promoted, otherwise trade-offs should be expected – like the extinction of meadowlarks in greenway scenarios.

     

Financial policy innovation for social change: a case study of China's green credit policy

Financial policy impacts on a range of social issues such as poverty alleviation, education, pollution control, etc. Making good use of financial policy and applying innovation to existing financial systems can generate positive outcomes for society. This article is to discuss the case of green credit policy in China. This policy was jointly announced in 2007 by financial and environmental regulators. According to this policy, banks were encouraged to give more loans to environmental friendly companies than to others. Such policy has made great progress, and it became a more formal document entitled ‘Green Credit Guideline’ in 2012. This guideline included a comprehensive definition on green credit and specified several requirements at practical levels. Despite the great success, challenges of implementing such policy still remain. First, information about corporate environmental performance is insufficient; second, market incentives for green credit policy are not high enough; third, most banking staff lack knowledge and capacity to handle environmental affairs. Nevertheless, this case still sheds light on how financial policy innovation drives social changes. The key is to identify the connection between social issues and financial issues, and then to make a business case that creates pressures or incentives for financial institutions. This requires a market where social and environmental cost is appropriately priced and internalized to those who generate it. Ideally, financial policies should help shape such a market so that society can share values created by financial institutions.     

Gender,domestic space,and urban upgrading: a case study from Amman

The author discusses an urban upgrading project in the Wadi and Jabal areas of central Amman. These two areas, home to Palestinian refugees from the 1948 and 1967 exoduses, are among the most congested and poor in the central city. The Wadi borders a refugee camp and the Jabal is surrounded by low-income neighborhoods. Through the upgrading project, the state asserted control over every facet of women's lives, addressing most aspects of private and public life in the targeted communities. Women responded in a rally around the notions of domesticity and femininity, effectively managing public agencies and personnel in such a manner that the project was eventually turned to their advantage. Sections consider women in the domestic environment, relationships between women across households, the urban upgrading project, planning to restructure social relations, blurring the private and the public, and women's responses.     

Common factors are not islands--they work through models: a response to Sexton, Ridley, and Kleiner

In this article, we respond to Sexton, Ridley, and Kleiner (this issue) from three different perspectives. First, we discuss their criticisms as rooted in a portrait of common factors to which we do not subscribe. Second, we discuss points of agreement and partial agreement between our two articles. Finally, we discuss our areas of clear disagreement with their points of view. In these areas of disagreement we put forth the common factors approach as an empirically supported lens; we discuss the influence of investigator allegiance on the specificity conclusion; and we challenge the idea that the common factors lens is simple. In conclusion, we illustrate how common factors work through a credible therapy model using functional family therapy as an example.     

Interdisciplinary team discussion on work environment issues related to low back disability: a multiple case study

From both a social and cost-benefit perspective, disability prevention and associated management strategies for assisting employees with back pain are only successful if they address critical return-to-work (RTW) determining factors present in the workplace, including ergonomic factors. Despite our current knowledge of the importance of an integrated team approach targeting these factors, questions remain regarding the conceptual framework adopted by contemporary rehabilitation teams as it relates to work-oriented interventions to accommodate employees back to work. The purpose of this study was to explore and describe the work environment issues discussed by an interdisciplinary team engaged in the work rehabilitation process of low back disability cases. A qualitative content analysis was conducted for 10 sample cases that underwent a rehabilitation program in Quebec (Canada). Drawing on the results of these analyses, a framework representing a synopsis of practitioners' involvement in the person-environment dynamic is presented and discussed. This study makes a unique contribution to the understanding of the 'real-life' content of an interdisciplinary activity in disability management, thus, helping rehabilitation practitioners to build knowledge on the practical application of a cross-disciplinary framework to address work environment issues during the RTW process of those patients sick-listed due to back pain.     

Marriage migration,a neglected form of long-term mobility: a case study from Ilorin,Nigeria

"This article examines the evidence for and possible significance of marriage migration in and around the city of Ilorin, the capital of Kwara State, Nigeria, which has a population of about 400,000." The study "reveals a movement of rural women to marry into wealthy polygymous compounds in the city and the return of some of these women to their rural natal compounds later in life. This movement may be an explanation for the high proportion of women in indigenous towns, and perhaps also in some newer medium-sized settlements. It can also be seen as a reflection of the unequal and exploitive relationship between the towns and their rural hinterland."     

Designing agroforestry innovations to increase their adoptability: a case study from Paraguay

The development of adoptable natural resource systems, to address the needs of rural populations, is a priority for many governments in less developed countries. This paper looks at agroforestry as an innovation, and at the factors which influence its adoptability. This is accomplished through an analysis of a case study on the development and diffusion of an agroforestry innovation in the Guayaybi region of Eastern Paraguay. In this case study a forestry extension team, working directly with the farmers, was successful in designing an adoptable agroforestry innovation. The innovation was ecologically adapted to the region and appeared to have good potential for economic return. It was readily adopted by the farmers who perceived it to have a relative economic advantage over their traditional land use systems. The agroforestry system was compatible with their agricultural practices and helped to meet their needs for wood products and fodder. The new system was simple to understand and easy to try on a limited basis which minimized risk. Also the tree species used were fast-growing, which impressed the farmers and made the plantations highly visible to others. This ‘observability’ of functioning agroforestry systems plus the belief in the potential for economic gain were the key factors in the rapid adoption of agroforestry as a new land use system.     

Sociology, ethics, and the priority of the particular: learning from a case study of genetic deliberations

There are growing debates about the relationship between the two disciplines of sociology and ethics, particularly as they each become increasingly involved in research and policy formation on the life sciences, especially genetics. Much of this debate has been highly abstract, often stipulating the seemingly different character of the two disciplines and speculating on their theoretical potential--or lack thereof--for future collaborative work. This article uses an existing collaboration between a sociologist and an ethicist, on a study of participation in genetic databases, to explore some of the challenges, for both disciplines, of working together. Building upon this case study, we examine the suggestion that the Aristotelian concept of 'phronesis' provides the grounds for establishing one possible theoretical framework with which the disciplines can be bridged. Further exploration of this approach leads to suggestions for ways of thinking about the apparently fundamental divides between the disciplines and for ways of adding to notions of a 'public sociology'.     

Migration,Religion, and Residential Segregation at the Urban Level: The Case of Muslim Migrants in Rome and Milan

This article investigates residential segregation at the intraurban level of migrants in two Italian cities, Rome and Milan, considering religion as a point of reference in light of its pivotal role in terms of identity references for many migrants. The article focuses in particular on Muslim migrants—due to both the magnitude of their presence and complex issues related to their settlement in Italian cities. The analysis shows a low level of intraurban residential segregation of Muslim migrants in both cities, with some relevant differences related to national subgroups (e.g., a higher concentration for people coming from Bangladesh and Pakistan), so that religion seems not yet to be a main driver of residential choice for Muslim migrants. In light of both the low level of segregation of Muslim migrants and some features of Italian urban policies on migration and religion, we argue that residential concentration can currently play a beneficial role in terms of the insertion of migrants in Italian cities and fulfillment of some of their needs (e.g., availability of minority places of worship).     

The morphogenesis of disability policies and the personalisation of social services. A case study from Italy.

Across Europe, and particularly since the 2008 Financial Crisis, new demands for tailor-made services came from different actors and perspectives: user-led organizations, intellectuals, policy makers, social workers, advocacy organizations, which call for a new way of programming, realizing and evaluating social policies. Personalization became a relevant part of the so called ‘welfare innovation narrative’, which concerns – to name but a few – English personalization agenda, Scottish self-directed support, Finnish education system, Norwegian cash-for-care policies. Even the European Commission is addressing new social services, reshaped through users’ capabilities. The aim of this paper is to critically explain, through a case study focused on the Sardinian disability policy, how social policy's morphogenetic cycles influence the governance of personalized disability plans and, consequently, the possibility of their implementation.     

Case study as a research method to study life histories of elderly people: Some ideas and a case study of a case study

The article explores conditions under which life history interviewing, based on case study research, may become a valuable research instrument. Validity and reliability of case study as a form of qualitative research are discussed. It is shown that neither triangulation nor internal consistency methods can guarantee a single interpretation. As an example a case study of Zina, an immigrant from Russia, is used, and two explanations of her behavior are proposed. The choice between them is made through construction of a holistic image of Zina, which essentially means introduction of a new dimension—theory, worldview—as a criterion of validity and reliability of case studies. Relations of a case study to a theory are discussed, and the conclusion is made that a case study enables a researcher to utilize the most the diversity of life histories of elderly people.     

Why the principle of informed self-determination does not help local farmers facing land loss: a case study from oil palm development in East Kalimantan,Indonesia

ABSTRACT

The principle of informed self-determination has been celebrated as a means to prevent involuntary land transfer and the resulting dispossession of affected communities in agricultural investments of developing countries. Based on qualitative field research conducted in East Kalimantan, Indonesia, this paper argues that such optimistic recognition needs reexamination. Drawing on a case study of indigenous Dayak communities that have faced advancement of large-scale oil palm estates since 2007, the paper examines what informs communities’ decisions to release land to estates. The underdevelopment created by government neglect and the lack of future prospects for autonomous development are shown to have contributed to communities’ decisions to release land. After a decade, encroaching palm oil has produced land shortages and depleted forest resources. This study highlights the need for meaningful state interventions to alleviate poverty and create conditions that allows local communities to make meaningful choices during the consultations over land release.