The role of dispersal and local environment in urban land snail assemblages: an example of three cities in Central Italy

Ecologists increasingly appreciate the central role that urban biodiversity plays in ecosystems, however much urban biodiversity is neglected, especially some very diverse groups of invertebrates. For the first time in southern Europe, land snail communities are analysed in four urban habitats along a geographical gradient of three cities, using quantitative methods and assessing the relative roles of local environmental conditions (“distance from sea”, “distance from city centre”, “vegetation cover”) and spatial effects by principal coordinate analysis of neighbour matrices, redundancy analysis and variation partitioning. A total of 53 species was recorded, a richness similar to that of natural areas. At habitat level, species richness did not show a clear increasing trend from more to less urbanized habitats, but rather a homogeneous pattern. At city level, study areas hosted rather heterogeneous species assemblages and biotic homogenization did not seem to have any impact; indeed, only three species could be considered alien. Variation partitioning showed that land snail communities were mostly structured by environmental factors, even when spatial structures independent of measured environmental variables were included: “vegetation cover” and “distance from city centre” were the environmental variables that explained most of the variation in species composition. The lack of strong spatial structure also unexpectedly suggested that transport by humans aids dispersal of organisms with low mobility, which are usually limited by spatial constraints in natural environments. These results provide ecological and conservation implications for other invertebrate groups, suggesting to set priorities in management strategies that include habitat conservation at local scale.     

Inequality,integration, and policy: issues and evidence from EMU

Simple theoretical arguments imply that while economic integration may or may not increase income inequality and volatility, it certainly makes it difficult for National governments to conduct independent fiscal policies and to enforce income redistribution schemes. Controlling for country-level income variation, available data suggest that Europe’s Economic and Monetary Union (EMU) was associated with a small but significant increase in disposable income inequality, and that this was in turn accounted for by less generous social policies.     

Work and Family over the Life Course: Do Older Workers Differ?

This study explored how older workers (age 55+) differed from middle-aged (ages 35–54) and young workers (<35 years) in their experience of the work–family interface. Data came from a subset of a survey conducted by a multi-national corporation in 79 countries (N = 41,813, n = 2,700). Older workers reported significantly less work-to-family and family-to-work conflict and greater work–family fit, life success, and work success than middle-aged and young workers. They reported significantly greater job flexibility and job satisfaction but were significantly less likely to be aware of and use work–family programs than young workers. Older men reported significantly less awareness and use of work-life programs and less family-to-work conflict than older women. Implications of this research are presented.     

Doing Sociological Films: A Proposal

This essay in an attempt to define, termino‐logically and methodologically, a certain sociological way of producing videos.

The aim is to clarify the possibility of making cinematographic products as sociological practice; trying to transcend the “autodeceit” caused by the cine‐eye. This is a methodological proposal that confronts the risk of misunderstanding reality, through the paradoxical adoption of a method based upon theatre and fiction.     

The Paradox of Authentic Selves and Chameleons: Self‐monitoring,Perceived Job Autonomy and Contextual Performance

We investigate how self‐monitoring combines with the degree of perceived job autonomy to affect contextual performance. We explore both a mediation model, built on theories on individual differences in the perception of job characteristics, and a moderation model, built on theories of the interaction between personality and perceived job situation. Empirical evidence suggests that self‐monitoring and perceived job autonomy significantly predict contextual performance. In addition, an interesting paradox emerges: high self‐monitors are likely to perceive higher job autonomy than low self‐monitors but appear to benefit less from perceiving high job autonomy than low self‐monitors. This paper provides a richer understanding of the controversial nature of the self‐monitoring construct and offers a new specification of the combination between perceived situational and personality variables in the prediction of behavioural outcomes.     

Marketing Archetypes: Applying Jungian Psychology to Marketing Research

In the current situation of growing information overload, individuals are gradually becoming less sensitive to traditional marketing communications. For this reason, traditional marketing research models are no longer capable of giving useful insights to management. This calls for new approaches that can grasp the inner meaning of consumer behaviors and evaluate their relevance. To this end, a new multidisciplinary approach is needed to interpret complex behavioral patterns so as to gain deeper and more effective insights into customers and to understand their behavioral patterns. In this paper, following a short introduction to the basic concepts of Jung's analytical psychology and their relevance for marketing, we propose the use of the Jungian archetypes to implement a market research model, considering the case of an Italian research company's development of the Archetipus® model.     

Bounded integrated processes and unit root tests

In the framework of integrated processes, the problem of testing the presence of unknown boundaries which constrain the process to move within a closed interval is considered. To analyze this problem, the concept of bounded integrated process is introduced, thus allowing to formally define boundary conditions for I(1) processes. A new class of tests, which are based on the rescaled range of the process, is introduced in order to test the null hypothesis of no boundary conditions. The limit distribution of the test statistics involved can be expressed in terms of the distribution of the range of Brownian functionals, while the power properties are obtained by deriving some asymptotic results for I(1) processes with boundary conditions. Both theoretical and simulation investigations show that range-based tests outperform standard unit root tests significantly when used to detect the presence of boundary conditions. A previous draft of the paper (Cavaliere, 2000) was presented at the 8th World Congress of the Econometric Society, Seattle, 11–16 August 2000. I wish sincerely to thank: Martin Jacobsen for his patience in discussing weak convergence to regulated Brownian motions and his valuable suggestions; the Department of Theoretical Statistics of the University of Copenhagen whose hospitality is gratefully acknowledged; Tommaso Proietti for important suggestions; Silvano Bordignon and partecipants at the CIdE seminar, University of Padua, June 2000; two anonymous referees. Partial financial support from 60% M.U.R.S.T. research grants is acknowledged.     

Exploring Networking of Third Sector Organizations: A Case Study Based on the Quartieri Spagnoli Neighborhood in Naples (Italy)

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - In the last decades, European Third Sector Organizations have been increasingly affected by marketization and the...