Collective Approach (collective + approach)

Distribution by Scientific Domains


Selected Abstracts


Spatial distribution of rare species in lotic habitats

INSECT CONSERVATION AND DIVERSITY, Issue 3 2008
JOHN W. McCREADIE
Abstract., 1Species rarity is a common phenomenon in the biological world. Although rare species have always interested biologists, the meaning of ,rare' has not always been clear with the definition of rarity often arbitrary. 2In the current study, we investigate rarity in stream ecosystems using black flies (Diptera: Simuliidae). We defined rare species a priori as those species found , 10% of stream sites examined (n = 111 streams for ,summer collections'; n = 88 collection for ,spring' collections). Hence, we are exploring only one axis of rarity, restricted range. 3We first consider the distribution of each rare species separately to determine if the mean (euclidian) distance among streams (habitats) for each rare species differs from a random model. We next took a collective approach by pooling all rare species to determine the influence of stream conditions, niche breadth, and distance among habitats on rarity. 4Even within this biologically uniform group of flies, dispersal, range limits, and stream conditions all might play a role in rarity, and the importance of each of these factors appear to vary among species. Rather than looking for broad causes of rarity, future studies might be more fruitful if they looked at species-specific causes. [source]


Nostalgic bonding: exploring the role of nostalgia in the consumption experience

JOURNAL OF CONSUMER BEHAVIOUR, Issue 2 2003
Morris B. Holbrook
Abstract The recently awakened awareness of the past has produced a flurry of research directed towards understanding the nostalgic aspects of the human condition, towards investigating the role of nostalgia in the lives of consumers, and towards the application of such knowledge to the design of marketing strategies. With rare exceptions, however, such research has pursued a quantitative survey-based approach to establishing the chronology-related and personality-driven aspects of nostalgia. To explore the nature and types of nostalgic bonding in greater depth, the present study pursues an interpretive approach to understanding the role of nostalgia in the consumption experience. Specifically, it applies a collective approach to subjective personal introspection to draw inferences concerning the key types of nostalgic experience. Copyright © 2003 Henry Stewart Publications. [source]


Collective Household Models: Principles and Main Results

JOURNAL OF ECONOMIC SURVEYS, Issue 4 2002
Frederic Vermeulen
In the traditional approach to consumer behaviour it is assumed that households behave as if they were single decision-making units. This approach has methodological, empirical and welfare economic deficiencies. A valuable alternative to the traditional model is the collective approach to household behaviour. The collective approach explicitly takes account of the fact that multi-person households consist of several members which may have different preferences. Among these household members, an intrahousehold bargaining process is assumed to take place. In addition to providing an introduction to the collective approach, this survey intends to show how different collective household models, each with their own aims and assumptions, are connected. [source]


Resurgent Metropolis: Economy, Society and Urbanization in an Interconnected World

INTERNATIONAL JOURNAL OF URBAN AND REGIONAL RESEARCH, Issue 3 2008
ALLEN J. SCOTT
Abstract An urban problematic is identified by reference to the essential characteristics of cities as spatially polarized ensembles of human activity marked by high levels of internal symbiosis. The roots of the crisis of the classical industrial metropolis of the twentieth century are pinpointed, and the emergence of a new kind of urban economic dynamic over the 1980s and 1990s is discussed. I argue that this new dynamic is based in high degree upon the growth and spread of cognitive-cultural production systems. Along with these developments have come radical transformations of urban space and social life, as well as major efforts on the part of many cities to assert a role for themselves as national and international cultural centers. This argument is the basis of what we might call the resurgent metropolis hypothesis. The effects of globalization are shown to play a critical role in the genesis and geography of urban resurgence. Three major policy dilemmas of resurgent cities are highlighted, namely, their internal institutional fragmentation, their increasing character as economic agents on the world stage and the concomitant importance of collective approaches to the construction of localized competitive advantage, and their deepening social disintegration and segmentation. Résumé Une problématique urbaine est dégagée à propos des caractéristiques essentielles des villes définies comme des ensembles d'activité humaine polarisés dans l'espace et marqués par une symbiose interne poussée. Les racines de la crise qu'a subie la métropole industrielle classique au xxe siècle sont mises en évidence. Est aussi étudié un nouveau type de dynamique économique urbaine apparu au cours des années 1980-1990, cette dynamique étant largement fondée sur la croissance et la diffusion des systèmes de production cognitifs culturels. Parallèlement à ces évolutions, l'espace urbain et la vie sociale ont connu des transformations radicales, et nombre de villes ont entrepris de revendiquer un rôle de centre culturel national et international. Cet argument est à la base de ce qu'on pourrait appeler l'hypothèse d'une résurgence des métropoles. Il est montré que les effets de la mondialisation ont compté de façon cruciale dans la genèse et la géographie de la résurgence urbaine. Trois grands dilemmes politiques des ,villes résurgentes' sont soulignés: leur fragmentation institutionnelle interne; l'accentuation de leur place d'agents économiques sur la scène mondiale et l'importance concomitante des approches collectives pour construire des avantages concurrentiels localisés; ainsi que l'intensification de leur désintégration et de leur segmentation sociales. [source]


Hispanic Farmers and Farmworkers: Social Networks, Institutional Exclusion, and Climate Vulnerability in Southeastern Arizona

AMERICAN ANTHROPOLOGIST, Issue 3 2009
Marcela Vásquez-León
ABSTRACT In the U.S. Southwest, prolonged drought may force those most dependent on water to abandon their livelihoods. By focusing on Hispanic farmers and farmworkers, in this article I examine how ethnicity and other factors compound risk and create highly vulnerable groups. I use the concept of "social capital" to understand how the critically vulnerable access resources embedded in informal social networks of mutual aid to reduce their vulnerability. By contrasting their situation to that of Anglo farmers, I explore how social networks emerge as a result of diverse socioeconomic and ethnic contexts. Under a more permanent scenario of increased aridity, a better understanding of the risk management mechanisms deployed by vulnerable groups sheds light on how collective approaches build resilience and on the role of policy in promoting or inhibiting these approaches. I seek to contribute to discussions about the importance of sociocultural dynamics and policy decisions to improving society's adaptive capacity. [source]