Habitat type,food resources,noise and light pollution explain the species composition,abundance and stability of a winter bird assemblage in an urban environment

At present, urban areas cover almost 3% of the Earth’s terrestrial area, and this proportion is constantly increasing. Although urbanization leads to a decline in biodiversity, at the same time it creates extensive habitats that are exploited by an assemblage of organisms, including birds. The species composition and density of birds nesting in towns and cities are determined by the types of buildings, the structure and maturity of urban greenery, and habitat diversity. In contrast, the habitat traits shaping the community of birds wintering in urban areas are not known. The aim of this work was to assess the influence of habitat structure, food resources and the urban effects (pollution, noise, artificial light) on an assemblage of birds overwintering in an urban area. It was carried out in 2014 and 2015 in the city of Kraków (southern Poland), on 56 randomly chosen sample plots, in which the composition, density and interseasonal similarity of bird assemblage were assessed with line transect method. A total of 64 bird species (mean = 17.7 ± 4.9 SD species/plot) was recorded. The mean density was 89.6 ind./km ±63.3 SD. The most numerous species were Great Tit Parus major, Magpie Pica pica, Blackbird Turdus merula, Blue Tit Cyanistes caeruleus, Rook Corvus frugilegus, Fieldfare Turdus pilaris and House Sparrow Passer domesticus. Noise adversely affected species numbers and density, but artificial light acted positively on the density of birds and their interseasonal stability. The species richness and density of birds were also determined by the number of food sources available (e.g. bird-feeders). In addition, the greater the proportion of open areas, the fewer species were recorded. In contrast, the more urban greenery there was, the greater the density of the entire bird assemblage. Urban infrastructure (buildings, roads, refuse tips) had a positive effect on the interseasonal stabilization of the species composition of wintering birds. The results of this work indicate that the urban effect, i.e. noise and light pollution, apart from purely habitat factors, provide a good explanation for the species richness, density and stability of bird assemblage wintering in urban areas.     

Civil Society Organizations in the Informal Settlements of Buenos Aires: Service Providers and Forces for Change

The objective of this paper is to analyze the historical roots and contribution to human development of civil society organizations in marginalized communities based on fieldwork undertaken in seven informal settlements of the City of Buenos Aires, Argentina. The paper provides evidence of a dense network of organizations whose principal function is the provision of social services, especially food assistance, through a complementary relationship with the state. The current effectiveness of the settlements’ representative organizations—the principal vehicles through which community members voice their collective demands—is limited by a mix of factors intimately related to civil society–state relations, including irregularities in election processes, conflicts between organizations, and lack of transparency in the allocation of public resources. The paper concludes that true empowerment of these communities to act as a unified force for change requires the strengthening of neighborhood organizations and greater government openness to civil society participation in public decision-making processes.     

“I Learn as I Please”: The Construction of Children's Knowledge in,and about,a Buenos Aires Neighbourhood

This article summarises the findings of an ethnographic study among children of ages nine to fifteen who attend Aula Vereda, a community organisation in their neighbourhood with educational and recreational activities, once a week. On the assumption that children actively construct knowledge and do not merely repeat what adults impart, I'll identify three different ways in which these youths approach the instances of learning that the educators propose at the centre. These approaches, in turn, reveal a variety of cognitive productions and means for negotiating the spatial and generational meanings at work in the neighbourhood where they live.     

Relationship of bird richness,abundance and assemblage to the built environment in a small island tropical urban setting: a Suva,Fiji case study

There have been few studies investigating the relationship between the built environment and the status of bird distributions in small island tropical urban areas. We present a study investigating the relationship between bird species richness, abundance and assemblage to the built environment in Suva, Fiji. Field surveys were taken at 54 randomly selected sites throughout the city, stratified by three building density classes and the central business district (CBD). At each site bird counts were recorded, along with environmental data such as average building height, within a 150 m radius. Land-use information was obtained from screen digitized high-resolution satellite imagery within the same radius. Distance to undeveloped patches of land within the urban area was calculated using a GIS. Analysis of the effects of the built environment was carried out for all species, and for exotic and native species separately. Abundance of exotics was significantly higher in the central business district (CBD) than all other urban density classes, and significantly higher than natives in all other density classes. We found a negative relationship between native species richness and distance to undeveloped patches, but no relationship for exotics. Species assemblage was not related to urban density class. We conclude that the status of native and exotic bird species in Suva is similar to what has been found in urban areas in temperate climates, and conservation efforts should focus on minimizing the amount of heavily urbanized “core areas” and protecting undeveloped areas of forested vegetation to improve bird biodiversity in small tropical islands cities.

     

Local and landscape drivers of arthropod abundance,richness, and trophic composition in urban habitats

Urban green spaces, such as forest fragments, vacant lots, and community gardens, are increasingly highlighted as biodiversity refuges and are of growing interest to conservation. At the same time, the burgeoning urban garden movement partially seeks to ameliorate problems of food security. Arthropods link these two issues (conservation and food security) given their abundance, diversity, and role as providers of ecosystem services like pollination and pest control. Many previous studies of urban arthropods focused on a single taxon (e.g. order or family), and examined either local habitat drivers or effects of landscape characteristics. In contrast, we examined both local and landscape drivers of community patterns, and examined differences in abundance, richness, and trophic structure of arthropod communities in urban forest fragments, vacant lots, and community gardens. We sampled ground-foraging arthropods, collected data on 24 local habitat features (e.g., vegetation, ground cover, concrete), and examined land-cover types within 2 km of 12 study sites in Toledo, Ohio. We found that abundance and richness of urban arthropods differed by habitat type and that richness of ants and spiders, in particular, varied among lots, gardens, and forests. Several local and landscape factors correlated with changes in abundance, richness, and trophic composition of arthropods, and different factors were important for specific arthropod groups. Overwhelmingly, local factors were the predominant (80 % of interactions) driver of arthropods in this urban environment. These results indicate that park managers and gardeners alike may be able to manage forests and gardens to promote biodiversity of desired organisms and potentially improve ecosystem services within the urban landscape.     

Escaping the Border,Debordering the Nature: Protected Areas,Participatory Management,and Environmental Security in Northern Patagonia (i.e. Chile and Argentina)

Abstract

This paper focuses on the management of protected areas in transboundary contexts and centres on the contemporary evolution of the border between Chile and Argentina in Northern Patagonia, which is a region that has witnessed the creation of numerous protected areas that are currently claimed by Mapuche organisations and communities as part of their customary territory. In response to these claims, both states have progressively integrated Mapuche communities into the management of protected areas through specific agreements. Many of these protected areas have also been included in a Transboundary Biosphere Reserve proposal for UNESCO. A new environmental governance model that includes the protection of indigenous peoples’ rights is under construction not only along but also across the border between Chile and Argentina. Therefore, we discuss how participatory management could be viewed as a tool for redefining borders by linking environmental security in protected areas to human security in Mapuche communities. The article seeks to understand the role of environmental governance in shaping and/or overcoming political boundaries, and analyse how strategic mobilisations of the environment can advance the achievement of competing territorial projects led by different actors in different periods.     

Hygiene Wars on the Mercosur Border: Local and National Agency in Uruguaiana (Brazil) and Paso de los Libres (Argentina)

Scholarly attention to the processes of globalization and the construction of regional blocs such as the European Union, NAFTA, and Mercosur has resulted in the relatively widespread belief that borders are in the process of disappearing. Yet, ethnographic studies on political borders have for several years been evincing various redefinitions of border areas comprising new conflicts and mechanisms for strengthening certain barriers between countries. This article attempts to contribute to the discussion of the interplay between nation, state, and border in the Mercosur by analyzing transformations on the Argentinian-Brazilian border. My particular interest is in examining how sociocultural conflicts and negotiations at borders in this region are affecting the construction of new meanings of nationality, and conversely, how new policies (especially "hygienic" barriers) being defined from the politico-economic centers are transforming local populations' everyday lives and experiences. Border populations can be as important in the construction of state and nation as are areas deemed to be central.     

Social and academic profile of the university student of social work a comparative study in Spain,Argentina, and Venezuela

ABSTRACT

The article presents the results of an empirical investigation that aimed to analyze comparative socio-demographic characteristics, motivational aspects and professional role of students who attend universities. The contexts of research were University of Mar de Plata (Argentina), University of Murcia (Spain) and University of Zulia (Venezuela). The universe of research was 304 students, with the participation of a total of 253 (TR 83,2%), 109 from University of Murcia—Spain—100 from University of Mar del Plata—Argentina and 44 from University of Zulia—Venezuela. Two hundred and forty-four measuring instruments were checked favorably. The results of the research allowed to highlight significant coincidences in most of the variables studied. In the analysis of self-perceived personality styles, there is high coincidence both in style (attributed qualification) and score (assigned quantification). At the three universities, the docent–student relationship is a positive variable that affects the favorable self-perception beyond academic success. Design and implementation of programs based on the described characteristics are recommended.     

Species richness and seasonality of spiders (Arachnida, Araneae) in an urban Atlantic Forest fragment in Northeastern Brazil

Species richness and forest seasonality of spiders in an urban fragment of Northeastern Brazil were investigated. Mata do Buraquinho is a remnant of Atlantic Rain Forest where no spider inventories have ever been made. Samplings during dry and wet seasons were carried out in order to establish if seasonality influences species richness and complementarily of the spider fauna. Pitfall traps, nocturnal collections, and beating tray samples were used to access a multi-guild spider fauna. Spider species were estimated using first order Jackknife method. Four hundred samples were obtained, resulting in 1681 adult spiders. A total of 166 species were recorded and 211 were estimated. No significant differences for species richness were observed between both periods, and the captured species were the same according to the complementarily coefficients. The fragmentation hypothesis as factor of biota impoverishment was not tested, but future investigations on this topic are suggested in the complex of forest remnants in João Pessoa.     

Women and philanthropy in Argentina: from the society of beneficence to Eva Perón

This article focuses on the history of voluntary associations in Argentina over the past 200 years. Argentine voluntary associations have their roots in the alliance of the Catholic church, the state and the country's elites, in which women played major roles. The charitable stage can be divided into two phases: the first (1600–1899) was encouraged mainely by the church, in particular through the Sisters of Charity; the second (1820–1940) took shape under state patronage in a period of centralisation and secularisation. TheSociety of Beneficence, a quasi-public institution run by wealthy women, emerged as the most important institution for public assistance until the formation of the Eva Perón Foundation, which became the paradigmatic form of social assistance in the 1940s. Nevertheless, the approach adopted by the Foundation differed very little from those of its precursors. Within this framework the current social development model attempts to reconfigure the relationships between the public institutions and civil society. Anahí Viladrich is currently a consultant at the Center for the Study of Philanthropy for the International Research ProjectWomen and Philanthropy.     

URban Biotopes of Aotearoa New Zealand (URBANZ) (I): composition and diversity of temperate urban lawns in Christchurch

Christchurch urban lawns are dominated by non-native grasses and forbs. However, we document considerable plant diversity; the total number of species encountered in our 327 sampled lawns was 127, although 80 species occurred in <2% of lawns. Seven distinct lawn communities were identified by Two-Way INdicator SPecies ANalysis using occurrence of 47 species that occurred in > 2% of lawns. Our ability to explain variation in species composition was surprisingly good and indicates intensity of lawn maintenance such as frequency of mowing, irrigation, fertiliser, and herbicide use and whether clippings are removed or not plays the major role. Species richness significantly declines with an increase in total area of contiguous lawn, leaf litter cover, the presence of grass clippings, and on loamy soil. Hence, park lawns with coarser management had lower species richness than residential lawns. Native species were more prevalent in well tended residential lawns, where more frequent mowing and removal of clippings or litter build-up diminishes shoot competition or shading. There is tremendous potential for more native species in New Zealand lawns which would contribute substantially to the conservation of endangered lowland herbaceous flora.     

The Elephant Man (David Lynch, EMI Films, 1980): An Analysis from a Disabled Perspective

A paper that uses Foucault's ideas on normalisation and medicalisation to discuss David Lynch's The Elephant Man as a movie that dehumanises and objectifies its subject rather than one that represents abnormality/disability as human or valid in itself, as it is often claimed for the film. I analyse the methods by which the film inadvertently portrays the historical process of medicalisation and reinforces its ideology of normality as 'common sense' and abnormality as inhuman and 'unbearable' due to its pathological state rather than social construction; with the 'Freak'/abnormality (as carnivalesque) also being examined. I consequently analyse the ambiguities of the film to show its hidden agenda (through unconscious acceptance) of placing abnormality further and further into the realms of the Other, with eugenic overtones.     

It Takes a Village (Perhaps a Nation): Families,States, and Educational Achievement

Research in the United States has shown that children growing up in 2‐parent households do better in school than children from single‐parent households. We used the Trends in International Mathematics and Science Study (TIMSS) data to test whether this finding applied to other countries as well (N = 100,307). We found that it did, but that the educational gap was greater in the United States than in the other 13 countries considered. Results from 2‐level hierarchical linear models demonstrated that international differences in the educational gap were associated with several indicators of national policy and demographic contexts. No single policy appeared to have a large effect, but several policy combinations were associated with substantially reduced educational gaps between children from different family structures.     

Development and Utilization of a Practice-Based,Adolescent Intake Questionnaire (Adquest)

Summary

This article describes an intake questionnaire (Adquest) that was designed, tested, and implemented, and later employed in clinical data-mining studies, by practitioners in an adolescent mental health program. The instrument is primarily a practice-based, clinical information-gathering and client engagement device. Consequently, it differs in significant ways from more research-driven Rapid Assessment Instruments (RAIs). Despite these differences, when aggregated and analyzed, Adquest data provides valuable psychosocial information about hundreds of vulnerable urban youth seeking mental health services.     

The development, validation, and implications of a measure of consumer competitive arousal (CCAr)

This paper details the conceptual and empirical development of a 10-item scale to measure consumer competitive arousal (CCAr). Consumers experience competitive arousals in a wide variety of consumption contexts. Though the subject has been of interest in several recent studies, neither a consistent definition nor a reliable and valid measurement of the construct has been developed. The study offers a reliable and valid measurement scale of consumer competitive arousal by testing it in three pre-purchase and one post-purchase situation. The findings support three distinct dimensions of the CCAr construct (performance anxiety, rivalry, and scarcity recognition), which help shape a clear definition of the construct. Both the composite and its individual dimensions demonstrate predictive power for several behavioral and attitudinal outcomes.     

Understanding Acculturation,Depressive Symptoms,and the Protective Role of Family Involvement Among Latino(a) Immigrant Families

Although the relationship between varying levels of acculturation and depressive symptoms has been established among Latino(a) youth, the positive role of family involvement in relation to depressive symptoms among immigrant Latino(a) families has been studied less. This study draws on a sample of first-generation Latino(a) youth from the Longitudinal Immigrant Student Adaptation Study and explores the relationship between acculturation levels and depressive symptoms, as well as the protective role of family involvement. Although results do not support a relationship between acculturation and depressive symptoms, family involvement was significantly associated with lower depressive symptoms while taking important sociodemographic variables into consideration. Research and practice implications with Latino(a) immigrant families are discussed.