Southern two-lined salamanders in urbanizing watersheds

Forested riparian buffers are an increasingly common method of mitigating the negative effects of impervious surface cover on water quality and wildlife habitat. We sampled larval southern two-lined salamanders (Eurycea cirrigera) in 43 streams, representing the range of impervious surface cover and forested riparian buffer width across Wake County, NC, USA. Larval abundance decreased with increasing impervious surface cover in the upstream catchment, but was not affected by buffer width. This is likely a result of an incomplete buffer system and culverts or other breaches along streams. Larval abundance increased with detritus cover in the stream to a threshold and then decreased as detritus continued to increase. As percent pebble substrate in the stream increased, especially in perennial streams, larval salamander abundance also increased. We suspect salamanders were unable to migrate with the water column during dry periods in intermittent streams with sedimented interstices below the surface, resulting in low abundances. A combination of increased peak flows and sedimentation, reduced base flow, and chemical changes likely reduces the abundance of salamanders in urban and suburban streams. We suggest creation of catchment-wide, unbreached buffers to maintain the integrity of stream habitats in urbanizing watersheds.     

Introduction:

No abstract available for this article.     

Introduction:

No abstract available for this article.     

Imagined communities, contested watersheds: Challenges to integrated water resources management in agricultural areas

Integrated water resources management is one of the major bottom-up alternatives that emerged during the 1980s in North America as part of the trend towards more holistic and participatory styles of environmental governance. It aims to protect surface and groundwater resources by focusing on the integrated and collaborative management of land and water resources and interests on a watershed basis. In this paper, we draw on the policy network perspective on governance to shed light on the strengths and weaknesses of watershed-based processes of collaboration and integration for water quality protection in agricultural areas. The policy network perspective focuses on the interaction of actors, institutions and ideas within and among policy sectors to capture the intricacies of the policy process in increasingly complex and fragmented societies. Empirically, this study is based on the analysis of agro-environmental strategies for water quality protection in the Province of Ontario over the last 15 years. The contamination of a rural municipal well in Ontario in 2000, with its tragic consequences, translated into an ongoing pluralistic debate and strong attempts to fundamentally change the provincial policy style for addressing drinking water threats, especially agricultural pollution. Based on our analysis, we suggest that meaningful scales for collaboration and integration of land and water resources and interests at the local level, from the point of view of Ontario's agricultural policy network, do not currently include the watershed. We conclude that, instead of forcing watershed-based governance structures, the exploration and examination of more creative and flexible ways of linking watershed imperatives to existing socially and politically meaningful scales in agricultural areas of Ontario and elsewhere is warranted.     

Introduction: Self in South Asia

The so called western, rational, individual, autonomous, self marked by freedom, potential and choice and deemed essential for modernity has predominantly been juxtaposed with the presumed collective, static, bounded, “identity” of the “non-west” and its inhabitants. Anthropological scholarship has thus been marked by its focus on the “identity” of its subjects (drawn from a collective and shared with others) instead of a self. Nowhere has this theorisation between the self and the collective been so fraughtly interrogated as in the Anthropology of South Asia. A common place occurrence in academic, policy and everyday discussions, South Asian personhood has been comprehended only through various collective categories like gender, kinship, religion, caste, community following the Dumontian holism that there are no individuals and only caste and hierarchy in India. The discussions of self have also remained understudied in historiography inspite of being intrinsic to the Indian post-colonial public life. Recently, historians have turned to individual sensibilities and life stories while others have argued that the self is a product of history transformed in a public debate. It is important to reflect on the methodological connotations of using such person-centred self-representations – narratives, novels, biographies and memoirs – which are often deemed to be inadequate sources of anthropological and ethnographic value. Theoretically and methodologically these articles on self in South Asia distinctly depart from the existing anthropological and historical literature by bringing together at the same juncture both synchronic and diachronic accounts in conjunction with psychic and social histories. In this volume we are interested in the practices and conceptual tools behind the self than a definition. The focus here is on the ethnographic examination of the self and personal experience, of the minutae of the interactions of daily life, on the dialogical characters of the self in South Asia rather than a “South Asian” self. The idea of the self becomes particularly pertinent within the shifting contexts of economic liberalization, migration, violent conflicts, consumerism, new media and the role of transnationally affiliated groups in challenging/reifying static, orientalised and essentialising accounts of the self.     

Editor's Introduction: Sex in Research

Qualitative Sociology -     

Ecological resilience in urban ecosystems: Linking urban patterns to human and ecological functions

Urban ecosystems evolve over time and space as the outcome of dynamic interactions between socio-economic and biophysical processes operating over multiple scales. The ecological resilience of urban ecosystems—the degree to which they tolerate alteration before reorganizing around a new set of structures and processes—is influenced by these interactions. In cities and urbanizing areas fragmentation of natural habitats, simplification and homogenization of species composition, disruption of hydrological systems, and alteration of energy flow and nutrient cycling reduce cross-scale resilience, leaving systems increasingly vulnerable to shifts in system control and structure. Because varied urban development patterns affect the amount and interspersion of built and natural land cover, as well as the human demands on ecosystems differently, we argue that alternative urban patterns (i.e., urban form, land use distribution, and connectivity) generate varied effects on ecosystem dynamics and their ecological resilience. We build on urban economics, landscape ecology, population dynamics, and complex system science to propose a conceptual model and a set of hypotheses that explicitly link urban pattern to human and ecosystem functions in urban ecosystems. Drawing on preliminary results from an empirical study of the relationships between urban pattern and bird and aquatic macroinvertebrate diversity in the Puget Sound region, we propose that resilience in urban ecosystems is a function of the patterns of human activities and natural habitats that control and are controlled by both socio-economic and biophysical processes operating at various scales. We discuss the implications of this conceptual model for urban planning and design.     

Dangerous Liaisons: Introduction

This introduction is to a panel of papers on the analyst's experience of extreme states of danger and self-destructiveness in analysands. The provocations and clinical opportunities afforded by sexual practices, passivity, self-mutilation are considered. The demands on the analyst to enter, contain, and examine the enactments in treatment and outside it are also considered. Tensions between attunement to pathologizing theory, self-care, and self-control (in analyst and analysand) are explored.     

Introduction: Safe Passage

Adolescence is a period fraught with developmental challenges for all individuals. Those encountered by gay, lesbian, bisexual, and other sexual minority youth are particularity difficult. The Knowledge that they are “different” show how, although not yet necessarily full aware of how they are different, leaves many isolated and unable to work thought some typical developmental issues having to do with establishing romantic relationships and learning diverse social skills. Such teens may develop a host of coping mechanisms to ease the dissonance experienced when their forming identities are in conflict with peer, parental or, more broadly, societal expectation.     

Review Articles: Introduction

Florian Coulmas (ed.). The Handbook of Sociolinguistics (Blackwell Handbooks in Linguistics, 4). Oxford: Blackwell. 1997. x + 532 pp.Cloth (0–631–19339–1) £#187;70.00.