| 61. |
- Dunér, David, et al.
(författare)
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Un café con… David Dunér
- 2020
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Ingår i: ¿Estamos solos?. - Barcelona : Critica. - 9788491992394
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Bokkapitel (populärvet., debatt m.m.)
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| 62. |
- Eggers, Jeannette, et al.
(författare)
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Balancing different forest values: Evaluation of forest management scenarios in a multi-criteria decision analysis framework
- 2019
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Ingår i: Forest Policy and Economics. - : Elsevier BV. - 1389-9341 .- 1872-7050. ; 103, s. 55-69
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Tidskriftsartikel (refereegranskat)abstract
- Besides traditional timber production, other forest functions, such as biodiversity and recreation, have gained increasing importance during the last few decades. Demands on forests have become more diversified, thus making forest management and planning more complex. To meet these challenges, there is a growing interest in a more diversified silviculture, for which a number of different management options are available. However, it remains unclear how the various management options affect economic, ecological, and social aspects of sustainable forest management. Hence, in this study, we assess the consequences of various management options on different aspects of sustainable forest management through scenario analysis using a forestry decision support system. We evaluate 10 different forest management scenarios for two contrasting municipalities in Sweden, based on expert participation by way of a web-based multi-criteria decision analysis framework. We asked experts in economic, ecological, and social forest values, as well as those in reindeer husbandry, to weigh a number of indicators in their field of expertise against each other, and to create value functions for each indicator. We then determined scenario ranking for different sets of weights for economic, ecological and social forest values. Our results indicate that current management practices are favorable for economic aspects (wood production), while a number of scenarios would be better suited to fulfill the Swedish co-equal forest policy goal of production and consideration of environmental issues, such as scenarios with longer rotation periods, a larger share of set-asides and a higher share of continuous cover forestry. These measures would be beneficial not only for ecological values, but also for social values and for reindeer husbandry. Furthermore, we found that expert participation through the web-tool was a promising alternative to physical meetings that require more commitment in terms of time and resources.
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| 63. |
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| 64. |
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| 65. |
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| 66. |
- Eskafi, Majid, et al.
(författare)
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Framework for Dealing with Uncertainty in the Port Planning Process
- 2022
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Ingår i: Journal of Waterway, Port, Coastal and Ocean Engineering. - 0733-950X. ; 147:3
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Tidskriftsartikel (refereegranskat)abstract
- Globalization has increased international trade where the contribution of maritime transportation is significant. The projection of future port traffic in terms of vessel call and vessel size provides valuable and fundamental input to capacity planning and management, adjusting the direction of port development. In this research, analysis of port traffic is carried out for the Ports of Isafjordur network. The analysis is conducted based on the prediction of port throughput (ie, containerized and noncontainerized cargo, cruise ship call/passenger) in conjunction with port infrastructure
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| 67. |
- Feckler, Alexander, et al.
(författare)
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Exposure pathway-dependent effects of the fungicide epoxiconazole on a decomposer-detritivore system
- 2016
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Ingår i: Science of the Total Environment. - : Elsevier BV. - 0048-9697 .- 1879-1026. ; 571, s. 992-1000
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Tidskriftsartikel (refereegranskat)abstract
- Shredders play a central role in the breakdown of leaf material in aquatic systems. These organisms and the ecological function they provide may, however, be affected by chemical stressors either as a consequence of direct waterborne exposure or through alterations in food-quality (indirect pathway). To unravel the biological relevance of these effect pathways, we applied a 2 x 2-factorial test design. Leaf material was microbially colonized for 10 days in absence or presence of the fungicide epoxiconazole (15 mu g/L) and subsequently fed to the shredder Asellus aquaticus under exposure to epoxiconazole (15 mu g/L) or in fungicide-free medium over a 28-day period (n = 40). Both effect pathways caused alterations in asselids' food processing, physiological fitness, and growth, although not always statistically significantly: assimilation either increased or remained at a similar level relative to the control suggesting compensatory behavior of A. aquaticus to cope with the enhanced energy demand for detoxification processes and decreased nutritional quality of the food. The latter was driven by lowered microbial biomasses and the altered composition of fatty acids associated with the leaf material. Even with increased assimilation, direct and indirect effects caused decreases in the growth and lipid (fatty acid) content of A. aquaticus with relative effect sizes between 10 and 40%. Moreover, the concentrations of two essential polyunsaturated fatty acids (i.e., arachidonic acid and eicosapentaenoic acid) were non-significantly reduced (up to similar to 15%) in asselids. This effect was, however, independent of the exposure pathway. Although waterborne effects were generally stronger than the diet-related effects, results suggest impaired functioning of A. aquaticus via both effect pathways. (C) 2016 Elsevier B.V. All rights reserved.
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| 68. |
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| 69. |
- Fetterplace, Lachlan
(författare)
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Temporal stability in a protected and isolated fish community within marine parks surrounding Lord Howe Island
- 2021
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Ingår i: Regional Studies in Marine Science. - : Elsevier BV. - 2352-4855. ; 48
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Tidskriftsartikel (refereegranskat)abstract
- Remote oceanic islands often display high levels of biodiversity and endemism, making them important locations for marine parks aimed at conserving biodiversity. To determine whether marine parks are reaching conservation objectives requires consistent assessments of their effectiveness through time. Lord Howe Island and Balls Pyramid are World Heritage listed remote oceanic islands in the Tasman Sea that support a diverse assemblage of fishes including many endemic and protected species. To conserve the region’s unique marine biodiversity, state and Commonwealth marine parks including no-take zones and partially protected zones open to line fishing were established. After approximately 5, 9 and 13 years of protection of shelf habitat we tested for changes in the marine park’s fish assemblage across management zones through time using baited remote underwater video systems (BRUVs). We detected no difference in total fish abundance, diversity, or assemblage composition between management zone types. The relative abundance of targeted carangids, yellowtail kingfish and silver trevally were 2 and 1.6 times greater in no-take zones than partially protected zones respectively, however, the substantial variation in their abundances among locations and sites meant that these differences were not statistically significant. No clear difference in the relative abundance of endemic, near-endemic and protected species were observed between management zone types. Generally, the abundance and diversity of fishes varied most among locations, sites and sampling years. The overall lack of difference in the fish assemblage between management zone types and its stability through time suggests current anthropogenic threats are relatively minor, and the marine park’s condition is reasonably healthy. Future surveys of the marine park’s fish assemblage will be valuable to test for body-size differences between zone types and to monitor trends in condition, particularly in response to possible changes in the number, frequency and intensity of anthropogenic threats.
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| 70. |
- Fredriksson, Alexandra, et al.
(författare)
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Conceptual Blending Monitoring Students’ Use of Metaphorical Concepts to Further the Learning of Science
- 2020
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Ingår i: Research in Science Education. - : Springer Science and Business Media LLC. - 0157-244X .- 1573-1898. ; 50:3, s. 917-940
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study is to explore how tertiary science students’ use of metaphors in their popular science article writing may influence their understanding of subject matter. For this purpose, six popular articles written by students in physics or geology were analysed by means of a close textual analysis and a metaphor analysis. In addition, semi-structured interviews were conducted with the students. The articles showed variation regarding the occurrence of active (non-conventional) metaphors, and metaphorical concepts, i.e. metaphors relating to a common theme. In addition, the interviews indicated that students using active metaphors and metaphorical concepts reflected more actively upon their use of metaphors. These students also discussed the possible relationship between subject understanding and creation of metaphors in terms of conceptual blending. The study suggests that students’ process of creating metaphorical concepts could be described and visualised through integrated networks of conceptual blending. Altogether, the study argues for using conceptual blending as a tool for monitoring and encouraging the use of adequate metaphorical concepts, thereby facilitating students’ opportunities of understanding and influencing the learning of science.
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