How environmental managers perceive and approach the issue of invasive species: the case of Japanese knotweed s.l. (Rhône River, France)

We would like to thank Springer for publishing our article. The final publication is available at http://link.springer.com/article/10.1007%2Fs10530-015-0969-1International audienceStudying the perceptions of stakeholders or interested parties is a good way to better understand behaviours and decisions. This is especially true for the management of invasive species such as Japanese knotweed s.l. This plant has spread widely in the Rhône basin, where significant financial resources have been devoted to its management. However, no control technique is recognized as being particularly effective. Many uncertainties remain and many documents have been produced by environmental managers to disseminate current knowledge about the plant and its management. This article aims at characterizing the perceptions that environmental managers have of Japanese knotweed s.l. A discourse analysis was conducted on the printed documentation produced about Japanese knotweed s.l. by environmental managers working along the Rhône River (France). The corpus was both qualitatively and quantitatively analysed. The results indicated a diversity of perceptions depending on the type of environmental managers involved, as well as the geographicalareas and scales on which they acted. Whereas some focused on general knowledge relating to the origins and strategies of colonization, others emphasized the diversity and efficacy of the prospective eradication techniques. There is a real interest in implementing targeted actions to meet local issues. To do so, however, these issues must be better defined. This is a challenging task, as it must involve all types of stakeholders

Herbicide-Resistant Crops: Utilities and Limitations for Herbicide-Resistant Weed Management

Since 1996, genetically modified herbicide-resistant (HR) crops, particularly glyphosate-resistant (GR) crops, have transformed the tactics that corn, soybean, and cotton growers use to manage weeds. The use of GR crops continues to grow, but weeds are adapting to the common practice of using only glyphosate to control weeds. Growers using only a single mode of action to manage weeds need to change to a more diverse array of herbicidal, mechanical, and cultural practices to maintain the effectiveness of glyphosate. Unfortunately, the introduction of GR crops and the high initial efficacy of glyphosate often lead to a decline in the use of other herbicide options and less investment by industry to discover new herbicide active ingredients. With some exceptions, most growers can still manage their weed problems with currently available selective and HR crop-enabled herbicides. However, current crop management systems are in jeopardy given the pace at which weed populations are evolving glyphosate resistance. New HR crop technologies will expand the utility of currently available herbicides and enable new interim solutions for growers to manage HR weeds, but will not replace the long-term need to diversify weed management tactics and discover herbicides with new modes of action. This paper reviews the strengths and weaknesses of anticipated weed management options and the best management practices that growers need to implement in HR crops to maximize the long-term benefits of current technologies and reduce weed shifts to difficult-to-control and HR weeds

Introduction to the symposium on critical adult education in food movements: learning for transformation in and beyond food movements—the why, where, how and the what next?

Many social movements, peasant organisations and radical educators have been deeply engaged in education for food system transformation for a relatively long time. In contrast, scholarly work on the possible role of pedagogy in radically transforming food systems is more recent. But this field of inquiry is growing as new insights for theory and practice are emerging—especially in the agroecology literature. This symposium of Agriculture and Human Values is timely because it focuses on new research on the importance of critical education for the spread of food sovereignty and agroecology to more people and places. It pays particular attention to the important role that learning, education and pedagogy can play in social transformation for food sovereignty and justice—a tradition that we refer to broadly as “Learning for Transformation”. It draws together 7 articles that offer new critical insights about why, where, and how learning for transformation is being implemented,—and what next. In this editorial introduction, we reflect on how the different educational processes and methods presented here point to a range of possibilities and challenges for social movements.Peer reviewe

Addressing socio-economic and ethical considerations in biotechnology governance: the potential of a new politics of care

This is the author accepted manuscript. The final version is available from Springer Verlag via the DOI in this record.There is a growing demand to incorporate social, economic and ethical considerations into biotechnology governance. However, there is currently little guidance available for understanding what this means or how it should be done. A framework of care-based ethics and politics can capture many of the concerns maintaining a persistent socio-political conflict over biotechnologies and provide a novel way to incorporate such considerations into regulatory assessments. A care-based approach to ethics and politics has six key defining features. These include: 1) a relational worldview, 2) an emphasis on the importance of context, 3) a recognition of the significance of dependence, 4) an analysis of power, including a particular concern for those most vulnerable, 5) a granting of weight to the significance of affect, and 6) an acknowledgment of an important role for narrative. This policy brief provides an overview of these defining features, illustrates how they can appear in a real world example and provides a list of guiding questions for assessing these features and advancing a politics of care in the governance of biotechnology.The authors would like to acknowledge the funding received for the project from the Research Council of Norway (grant no. 231146)

Risk assessment of aquatic invasive species' introductions via european inland waterways

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