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  • 1.
    Andersson, Pernilla
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science. Södertörn University, Teacher Education.
    The Responsible Business Person: Studies of business education for sustainability2016Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Calls for the inclusion of sustainable development in the business curriculum have increased significantly in the wake of the financial crisis and increased concerns around climate change. This has led to the appearance of new initiatives and the development of new teaching approaches. This thesis explores business education at the upper secondary school level in Sweden following the inclusion of the concept of sustainable development in the curriculum. Drawing on poststructuralist discourse theory, the overarching purpose is to identify the roles of a responsible business person that are articulated in business education and to discuss how these roles could enable students to address sustainability issues. The thesis consists of four studies, based on textbook analyses, teacher interviews and classroom observations. Three categories of roles have been identified, implying that a business person is expected to either adapt to, add or create ethical values. These three categories are compared with the roles indicated in the environmental discourses constructed by Dryzek and the responsibility regimes developed by Pellizzoni. Drawing on Dryzek’s and Pellizzoni’s reasoning about which qualities are important for addressing sustainability issues, it is concluded that the roles identified in the studies could mean that students are unequipped (the adapting role), ill-equipped (the adding role) or better equipped (the creating role) to address uncertain and complex sustainability issues. The articles include empirical examples that illustrate how and in which situations specific roles are articulated, privileged or taken up. The examples also indicate how the scope for business students’ subjectivities are facilitated or hampered. It is suggested that the illustrative empirical examples could be used for critical reflection in order to enhance students’capabilities of addressing uncertain and complex sustainability issues and to improve educational quality in terms of scope for subjectivity.

  • 2.
    Andersson, Pernilla
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science. Södertörn University, Teacher Education.
    Öhman, Johan
    Örebro Universitet.
    Logics of business education for sustainability2016In: Environmental Education Research, ISSN 1350-4622, E-ISSN 1469-5871, Vol. 22, no 4, 463-479 p.Article in journal (Refereed)
    Abstract [en]

    This paper explores various kinds of logics of ‘business education for sustainability’and how these ‘logics’ position the subject business person, based on eight teachers’ reasoning of their own practices. The concept of logics developed within a discourse theoretical framework is employed to analyse the teachers’ reasoning. The analysis takes its starting point in different approaches to how a business ought to or could take responsibility for sustainable development. Different approaches to business ethical responsibilities, in combination with assumptions about how educational content is legitimised and presupposed purposes of education, are used to construct logics of business education for sustainability. In the paper, the results of this analysis are presented as: the logic of profit-, social- or radical-oriented business education. Our results also show how the different logics position the subject business person differently, as one who adapts to, adds or creates ethical values. The results are first discussed in terms of how environmental and social challenges could be dealt with in the future and secondly, considering the risk of de-subjectification with regard to profit-oriented business education, the implications this may have for the educational quality itself.

  • 3.
    Andrén, Elinor
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Telford, Richard J.
    University of Bergen.
    Jonsson, Per
    Stockholm University.
    Reconstructing the history of eutrophication and quantifying total nitrogen reference conditions in Bothnian Sea coastal waters2016In: Estuarine, Coastal and Shelf Science, ISSN 0272-7714, E-ISSN 1096-0015Article in journal (Refereed)
    Abstract [en]

    Reference total nitrogen (TN) concentrations for the Gårdsfjärden estuary in the central Bothnian Sea, which receives discharge from an industrial point-source, have been estimated from diatom assemblages using a transfer function. Sedimentological and diatom evidence imply a good ecological status before 1920 with an assemblage dominated by benthic taxa indicating excellent water transparency, high diatom species richness and less organic sedimentation resulting in homogeneous well oxygenated sediments. A change in the diatom assemblage starts between 1920 and 1935 when the species richness declines and the proportion of planktic taxa increases. Increased organic carbon sedimentation after 1920 led to hypoxic bottom waters, and the preservation of laminae in the sediments. The trend in the reconstructed TN-values agrees with the history of the discharge from the mill, reaching maximum impact during the high discharge between 1945 and 1990. The background condition for TN in Gårdsfjärden is 260-300 μg L-1, reconstructed until 1920.

  • 4.
    Asghar, Naveed
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Ticks and Tick-borne Encephalitis Virus: From Nature to Infection2016Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Vector-borne diseases are an increasing global threat to humans due to climate changes, elevating the risk of infections transmitted by mosquitos, ticks, and other arthropod vectors. Ixodes ricinus, a common tick in Europe, transmits dangerous tick-borne pathogens to humans. Tick-borne encephalitis (TBE) is a vector-borne disease caused by TBE virus (TBEV). Climate change has contributed to increased tick abundance and incidence of tick-borne diseases, and between 10,000 and 15,000 human TBE cases are reported annually in Europe and Asia. TBEV shows a patchy geographical distribution pattern where each patch represents a natural focus. In nature, TBEV is maintained within the tick-rodent enzootic cycle. Co-feeding is the main route for TBEV transmission from infected to uninfected ticks and for maintenance within the natural foci. The increasing number of TBE cases in Scandinavia highlights the importance of characterizing additional TBEV sequences and of identifying novel natural foci, and in this work we sequenced and phylogenetically characterized four TBEV strains: Saringe-2009 (from a blood-fed nymph), JP-296 (from a questing adult male), JP-554 (from a questing adult male), and Mandal-2009 (from a pool of questing nymphs, n = 10). Mandal-2009 represents a TBEV genome from a natural focus in southern Norway. Saringe-2009 is from a natural endemic focus in northern Stockholm, Sweden, and JP-296 and JP-554 originate from a natural focus “Torö” in southern Stockholm. In addition, we have studied the effect of different biotic and abiotic factors on population dynamics of I. ricinus in southern Stockholm and observed significant spatiotemporal variations in tick activity patterns. Seasonal synchrony of immature stages and total tick abundance are important factors for the probability of horizontal transmission of TBEV among co-feeding ticks. We found that the probability of co-occurrence of larvae, nymphs, and female adults was highest during early summer whereas increasing vegetation height and increasing amounts of forest and open water around the study sites had a significant negative effect on co-occurrence of larvae, nymphs, and female adults.

    The proximal part of the 3 ́non-coding region (3 ́NCR) of TBEV contains an internal poly(A) tract, and genomic analysis of Saringe-2009 revealed variability in the poly(A) tract indicating the existence of different variants within the TBEV pool of Saringe-2009. Like other RNA viruses, TBEV exists as swarms of unique variants called quasispecies. Because Saringe-2009 came from an engorged nymph that had been feeding on blood for >60 h, we propose that Saringe-2009 represents a putative shift in the TBEV pool when the virus switches from ectothermic/tick to endothermic/mammalian environments. We investigated the role of poly(A) tract variability in replication and virulence of TBEV by generating two infectious clones of the TBEV strain Toro-2003, one with a short/wild-type (A)3C(A)6 poly(A) tract and one with a long (A)3C(A)38 poly(A) tract. The infectious clone with the long poly(A) tract showed poor replication in cell culture but was more virulent in C57BL/6 mice than the wild-type clone. RNA folding predictions of the TBEV genomes suggested that insertion of a long poly(A) tract abolishes a stem loop structure at the beginning of the 3 ́NCR. Next generation sequencing (NGS) analysis of the TBEV genomes after passaging in cell culture and/or mouse brain revealed molecular determinants and quasispecies structure that might contribute to the observed differences in virulence. Our findings suggest that the long poly(A) tract imparts instability to the TBEV genome resulting in higher quasispecies diversity that in turn contributes to TBEV virulence. Phylogenetic analysis of Saringe-2009, JP-296, JP-554, and Mandal-2009 predicted a strong evolutionary relationship among the four strains. They clustered with Toro-2003, the first TBEV strain from Torö, demonstrating a Scandinavian clade. Except for the proximal part of the 3 ́NCR, TBEV is highly conserved in its genomic structure. Genomic analysis revealed that Mandal-2009 contains a truncated 3 ́NCR similar to the highly virulent strain Hypr, whereas JP-296 and JP-554 have a genomic organization identical to Toro-2003, the prototypic TBEV strain from the same natural focus. NGS revealed significantly higher quasispecies diversity for JP-296 and JP-554 compared to Mandal-2009. In addition, single nucleotide polymerphism (SNP) analysis showed that 40% of the SNPs were common between quasispecies populations of JP-296 and JP-554, indicating the persistence and maintenance of TBEV quasispecies within the natural focus.

    Taken together, these findings indicate the importance of environmental factors for the occurrence pattern of the different life-stages of the tick vector, which are important for the persistence of TBEV in nature. Our findings also show that the selection pressure exerted by specific host also affects the population structure of the TBEV quasispecies. In addition, our results further demonstrate that the evolution of quasispecies has effect on TBEV virulence in mice.

  • 5.
    Asghar, Naveed
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology. Örebro universitet.
    Petersson, Mona
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Geography.
    Johansson, Magnus
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology. Örebro univarsitet.
    Dinnétz, Patrik
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Local land-scape effects on population dynamics of Ixodes ricinus2016In: Geospatial Health, ISSN 1827-1987, Vol. 11, 283-289 p., 487Article in journal (Refereed)
  • 6.
    Benulic, Kajsa-Stina
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    A Beef with Meat: Media and Audience Framings of Environmentally Unsustainable Production and Consumption2016Doctoral thesis, monograph (Other academic)
    Abstract [en]

    The aim of this thesis is to identify potential routes of participation in environmentally sustainable changes of the Swedish meat production and consumption. Changes are needed as meat production and consumption have been linked to serious environmental problems, such as climate change, biodiversity loss, and land use change. Scientists, international organizations, and Swedish government authorities have identified individual consumer responsibility as key in making that change happen. The public is to be informed and educated to make more environmentally sustainable choices as meat consumers, and become more supportive of policy instruments. This strategy, which mirrors the dominant approach to solving environmental problems, is suggested by government authorities despite their suspicion that media should have made most Swedes aware of the environmental impacts of meat.

    In this thesis potential participatory routes are identified through the analysis of Swedish news media and audience framings of meat production and consumption. Media framing is studied as an important source of information, and perhaps motivation, crucial in the individualized consumer responsibility approach. The media framing is studied through content analysis of mainstream and alternative radical newspapers. The audiences’ framing of meat may be influenced by media, but also by their everyday experiences, beliefs, values, and opinions. Focus group discussions with reception elements are the methods used for studying how audiences frame meat and use media in the process. The concept of participation is broadened to include passive and active forms to capture in which roles individuals consider to contribute to changing meat production and consumption. It is not self-evident that routes to change must include individual participation, since responsibility may be attributed to other actors, both by media and their audiences.

    The results imply only participatory route supported by media and audience framing. It is the one that mirrors the individualized consumer responsibility approach to solving environmental problems. The major barrier to the route is the audiences’ perceived inability to act. In an alternative route supported by both media and audience framing, state centered actors are made responsible for enforcing change. Here, the major barrier is the perceived unlikeliness of powerful actors assuming responsibility. Audiences construct no citizen roles for themselves to participate in. Neither does media, who only address audiences as consumers. Based on these findings it is suggested that the outlook for the individualized responsibility approach to making meat production and consumption environmentally sustainable is gloomy. At least if it the approach is to continuously rely on the information and motivation offered by media.

  • 7.
    Bolinder, K.
    et al.
    Stockholm University.
    Norbäck Ivarsson, Lena
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Humphreys, A. M.
    Stockholm University / Imperial College London, UK.
    Ickert-Bond, S. M.
    University of Alaska Fairbanks, Fairbanks, AK, USA / Arizona State University, Tempe, AZ, USA.
    Han, F.
    China University of Geosciences, Wuhan, China.
    Hoorn, C.
    University of Amsterdam, Amsterdam, The Netherlands.
    Rydin, C.
    Stockholm University.
    Pollen morphology of Ephedra (Gnetales) and its evolutionary implications2016In: Grana, ISSN 0017-3134, E-ISSN 1651-2049, Vol. 55, no 1, 24-51 p.Article in journal (Refereed)
    Abstract [en]

    The Ephedra lineage can be traced at least to the Early Cretaceous. Its characteristically polyplicate pollen is well-represented in the fossil record and is frequently used as an indicator of paleoclimate. However, despite previous efforts, knowledge about variation and evolution of ephedroid pollen traits is poor. Here, we document pollen morphology of nearly all extant species of Ephedra, using a combination of scanning electron microscopy (SEM) and light microscopy (LM), and reconstruct ancestral states of key pollen traits. Our results indicate that the ancestral Ephedra pollen type has numerous plicae interspaced by unbranched pseudosulci, while the derived pollen type has branched pseudosulci and (generally) fewer plicae. The derived type is inferred to have evolved independently twice, once along the North American stem branch and once along the Asian stem branch. Pollen of the ancestral type is common in Mesozoic fossil records, especially from the Early Cretaceous, but it is less commonly reported from the Cenozoic. The earliest documentation of the derived pollen type is from the latest Cretaceous, after which it increases strongly in abundance during the Paleogene. The results of the present study have implications for the age of crown group Ephedra as well as for understanding evolution of pollination syndromes in the genus.

  • 8.
    Bonow, Madeleine
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Cios, Stanislaw
    Ministry of Foreign Affairs, Warsaw, Poland.
    Svanberg, Ingvar
    Uppsala universitet.
    Fishponds in teh Baltic States: Historical Cyprinid Culture in Estonia, Latvia and Lithuania2016In: Historical Aquaculture in Northern Europe / [ed] M. Bonow; H. Olsén; I. Svanberg, Huddinge: Södertörns högskola, 2016, 139-156 p.Chapter in book (Refereed)
  • 9.
    Bonow, Madeleine
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Gröntoft, Magnus
    Jordbruksverket.
    Gustafsson, Sofia
    Linköpings universitet.
    Lindberg, Markus
    Sankta Birgitta klostermuseum.
    Inledning2016In: Biskop Brasks måltider: svensk mat mellan medeltid och renässans / [ed] Madeleine Bonow, Magnus Gröntoft, Sofia Gustafsson, Markus Lindberg, Stockholm: Bokförlaget Atlantis, 2016, 9-15 p.Chapter in book (Other academic)
  • 10.
    Bonow, Madeleine
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Normark, Maria
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Media Technology.
    Urban Community Gardens’ Contribution to the New Rurality: An Example from Stockholm (Sweden)2016In: Challenges for the New Rurality in a Changing World: Proceedings from the 7th International Conference on Localized Agri-Food Systems: 8-10 May 2016, Södertörn University, Stockholm, Sweden / [ed] Paulina Rytkönen & Ursula Hård, Huddinge: Södertörns högskola, 2016, 37-38 p.Conference paper (Refereed)
    Abstract [en]

    In the global North, there has been a considerable renewed interest for urban agriculture (UA) as a means to re-localize food systems by shortening food supply chains. This can be done by local food initiatives, such as community gardens. This paper is iscussing community gardens in Stockholm. We have choose to look at community gardens under the lens of neoliberal governmentality. Material has been gathered through participatory attendants on meetings, interviews and surveys. The results show that in Stockholm one can to some extent see urban gardening practices as agents of counter-neoliberal urban transformation. But also as an expression of the new rurality were the citizens desire to shorten the food chain and re connect with their food and to create new food regimes.

  • 11.
    Bonow, Madeleine
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Olsén, HåkanSödertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology.Svanberg, IngvarUppsala universitet.
    Historical Aquaculture in Northern Europe2016Collection (editor) (Refereed)
    Abstract [en]

    How were fishponds introduced, farmed and spread in Scandinavia and the Baltic Region in early modern times? What was their economic, social and religious importance? Which fish species were significant and why?

    This book uncovers a long, now broken, tradition that barely left traces in the written record or physical environment. Its broad and multidisciplinary scope highlights the situation from medieval times until the late nineteenth century. Besides Scandinavia and the Baltic States, insights from England are also introduced.

    Several socio-cultural domains have been identified: late medieval monastic fishponds; late medieval aristocratic fishponds associated with castles and manors; seventeenth and eighteenth century ponds rectory ponds as well as urban ponds from the seventeenth century to the nineteenth century.

  • 12.
    Bonow, Madeleine
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Svanberg, Ingvar
    Uppsala universitet.
    Historical Pond-Breeding of Cyprinids in Sweden and Finland2016In: Historical Aquaculture in Northern Europe / [ed] M. Bonow; H. Olsén; I. Svanberg, Huddinge: Södertörns högskola, 2016, 89-119 p.Chapter in book (Refereed)
  • 13.
    Bonow, Madeleine
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Svanberg, Ingvar
    Institutionen för rysslandsstudier Uppsala universitet.
    Monastiska fiskdammar i det senmedeltida Sverige2016In: Biskop Brasks måltider: svensk mat mellan medeltid och renässans / [ed] Madeleine Bonow, Magnus Gröntoft, Sofia Gustafsson, Markus Lindberg, Stockholm: Bokförlaget Atlantis, 2016, 266-284 p.Chapter in book (Other academic)
  • 14.
    Boström, Magnus
    et al.
    Örebro University.
    Grönholm, Sam
    Åbo Akademi University.
    Hassler, Björn
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    The Ecosystem Approach to Management in Baltic Sea Governance: Towards Increased Reflexivity?2016In: Environmental Governance of the Baltic Sea / [ed] Michael Gilek, Mikael Karlsson, Sebastian Linke, Katarzyna Smolarz, Springer, 2016, 1, 149-172 p.Chapter in book (Refereed)
    Abstract [en]

    This chapter analyses the governance structures linked to the marine environment of the Baltic Sea. The purpose is to assess whether current developments of the governance structures have a potential to take into account requirements of an Ecosystem Approach to Management (EAM). We use the concept of reflexive governance to understand key components and weaknesses in contemporary governance modes, as well as to elaborate on possible pathways towards a governance mode more aligned with EAM. The reflexive governance framework highlights three elements: (1) acknowledgement of uncertainty and ambiguity; (2) a holistic approach in terms of scales, sectors and actors; and (3) acknowledgement of path dependency and incremental policy-making. Our analysis is based on a comparative case study approach, including analysis of the governance in five environmental risk areas: chemical pollution, overfishing, eutrophication, invasive alien species and pollution from shipping. The chapter highlights an existing governance mode that is ill-equipped to deal with the complexity of environmental problems in a holistic manner, with systematic attention to uncertainty, plurality of values, ambiguity and limited knowledge, while also pointing at important recent cognitive and institutional developments that can favour pathways towards reflexive governance and consequently EAM.

  • 15.
    Bärgård, Jennifer
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Vi-skogens kommunikation om sin verksamhet till intressenter: - Retoriskanalys av bild och text2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    ABSTRACT

    Vi-Agroforestry communication has been studied to see how they use communication as a tool to attract donors. The aim is to be able to contribute to shed some light on the importance of image and text as a unified communication. Its about acknowledge what the sender (aid organization) sends out to tell potential donors. It examines how the organization communicates the problems they want to solve, which method they want to solve it with and why their organization should be the preferred option before the interest is gone by the recipient. By examine the reliability (ethos), the emotional connection (pathos) and the factual conviction (logos) of the Vi Agroforestry communication it helps to understand the organizations way of communicate with their listeners.

    The study examined Vi-Agroforestry communication through image and text. The author hopes to contribute to explore what an aid organization, like Vi-Agroforestry, choose to focus on regarding when they get to talk about their organization and their work. The organization has been analyzed based on the rhetorical basics to go on to see which framework they create their communications.

  • 16.
    Dahlgren, Elin
    et al.
    Swedish Environmental Protection Agency.
    Lindqvist, Dennis
    Stockholm University.
    Dahlgren, Henrik
    Swedish Museum of Natural History.
    Asplund, Lillemor
    Stockholm University.
    Lehtilä, Kari
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Trophic transfer of naturally produced brominated aromatic compounds in a Baltic Sea food chain2016In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 144, 1597-1604 p.Article in journal (Refereed)
    Abstract [en]

    Brominated aromatic compounds (BACs) are widely distributed in the marine environment. Some of these compounds are highly toxic, such as certain hydroxylated polybrominated diphenyl ethers (OH-PBDEs). In addition to anthropogenic emissions through use of BACs as e.g. flame retardants, BACs are natural products formed by marine organisms such as algae, sponges, and cyanobacteria. Little is known of the transfer of BACs from natural producers and further up in the trophic food chain. In this study it was observed that total sum of methoxylated polybrominated diphenyl ethers (MeO-PBDEs) and OH-PBDEs increased in concentration from the filamentous red alga Ceramium tenuicorne, via Gammarus sp. and three-spined stickleback (Gasterosteus aculeatus) to perch (Perca fluviatilis). The MeO-PBDEs, which were expected to bioaccumulate, increased in concentration accordingly up to perch, where the levels suddenly dropped dramatically. The opposite pattern was observed for OH-PBDEs, where the concentration exhibited a general trend of decline up the food web, but increased in perch, indicating metabolic demethylation of MeO-PBDEs. Debromination was also indicated to occur when progressing through the food chain resulting in high levels of tetra-brominated MeO-PBDE and OH-PBDE congeners in fish, while some penta- and hexa-brominated congeners were observed to be the dominant products in the alga. As it has been shown that OH-PBDEs are potent disruptors of oxidative phosphorylation and that mixtures of different congener may act synergistically in terms of this toxic mode of action, the high levels of OH-PBDEs detected in perch in this study warrants further investigation into potential effects of these compounds on Baltic wildlife, and monitoring of their levels.

  • 17.
    Franzén, Frida
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Dinnétz, Patrik
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Hammer, Monica
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Factors affecting farmers' willingness to participate in eutrophication mitigation: a case study of preferences for wetland creation in Sweden2016In: Ecological Economics, ISSN 0921-8009, E-ISSN 1873-6106, Vol. 130, 8-15 p.Article in journal (Refereed)
    Abstract [en]

    Local stakeholder participation in water management is emphasized in the EU Water Framework Directive (WFD). Wetland creation to mitigate nutrient leakage from agriculture is one example where participation of local farmers is needed. In this case study of the Himmerfjärden coastal catchment area, south of Stockholm, Sweden, we assessed both the importance of several demo-graphic factors, and of the main subsidy factors in the present Agri-Environmental Scheme (AES) for their effects on farmers’ willingness to create wetlands on their farms. The farm and farmer characteristics analyzed were age, gender, knowledge of the WFD, education, farm size, land ownership, current measures to reduce nutrient leakage and trust for other actors. The main factors from the AES were defined as five attributes in a discrete choice experiment approach related to the current agri-environmental policy instrument for wetland creation applied in the area. The results showed that approximately 30 % of the farmers were interested in wetland creation at their farms. The most common reason for not wanting to create a wetland was economic cost. Males were significantly more willing than females to create wetlands. Younger farmers were significantly more willing than older. Prior knowledge of the WFD increased willingness almost threefold, and land owners were significantly more willing than leaseholders. The choice experiment showed that higher cost ceiling for subsidies, higher compensation percentage and higher annual subsidies can significantly increase the willingness to create wetlands. However to attract also the remaining 70% of all farmers to join the AES we must look at other options than only using action based AES.

  • 18.
    Gilek, Michael
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Karlsson, Mikael
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Seeking Pathways Towards Improved Environmental Governance of the Baltic Sea2016In: Environmental Governance of the Baltic Sea / [ed] Michael Gilek, Mikael Karlsson, Sebastian Linke, Katarzyna Smolarz, Springer, 2016, 1, 229-246 p.Chapter in book (Refereed)
    Abstract [en]

    Governing marine environments is a highly complex and challenging enterprise. This applies particularly to the heavily exploited Baltic Sea for which despite extensive governance arrangements and a substantial scientific knowledge base, it is unlikely that the policy objective of ‘good environmental status’ is reached. Based on a review of governance arrangements linked to five large-scale environmental issues (eutrophication, overfishing, invasive alien species, chemical pollution and oil spills from shipping), this chapter aims to identify pathways and concrete ideas for institutional reform that may improve goal fulfilment. The results show that governance challenges differ substantially between environmental issues, implying a need for case-specific management reforms. For example, coping with extreme uncertainty is a key challenge in the chemical pollution case, whereas it seems more pertinent in the eutrophication case to address the complexity of nutrient pollution sources by adapting objectives and measures amongst sectoral policies to be in line with environmental ones. Furthermore, cross-case comparisons reveal a set of common vital functions (i.e. coordination, integration, interdisciplinarity, precaution, deliberation, communication and adaptability) that are needed in order to facilitate effective and efficient environmental governance in the long term. To promote these functions in Baltic Sea environmental governance, the chapter suggests pathways and institutional reforms aimed at improving multilevel and multisectoral integration, science-policy interactions and stakeholder participation. To further develop these ideas, it is proposed amongst other things that priority is given to setting up an international ‘Baltic Sea Policy Review Mechanism’, formed by cross-body and cross-stakeholder participation.

  • 19.
    Gilek, Michael
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Karlsson, Mikael
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Linke, Sebastian
    Göteborgs Universitet.
    Smolarz, Katarzyna
    Gdansk University, Poland.
    Environmental Governance of the Baltic Sea2016 (ed. 1)Book (Refereed)
    Abstract [en]

    This edited volume presents a comprehensive and coherent interdisciplinary analysis of

    challenges and possibilities for sustainable governance of the Baltic Sea ecosystem by

    combining knowledge and approaches from natural and social sciences. Focusing on

    the Ecosystem Approach to Management (EAM) and associated multi-level, multi-sector

    and multi-actor challenges, the book provides up-to-date descriptions and analyses of

    environmental governance structures and processes at the macro-regional Baltic Sea

    level. Organised in two parts, Part 1 presents in-depth case studies of environmental

    governance practices and challenges linked to five key environmental problems -

    eutrophication, chemical pollution, overfishing, oil discharges and invasive species.

    Part 2 analyses and compares governance challenges and opportunities across the five

    case studies, focusing on governance structures and EAM implementation, knowledge

    integration and science support, as well as stakeholder communication and participation.

    Based on these cross-case comparisons, this book also draws a set of general conclusions

    on possible ways of improving the governance of the Baltic Sea by promoting what are

    identified as vital functions of environmental governance: coordination, integration,

    interdisciplinarity, precaution, deliberation, communication and adaptability.

  • 20.
    Gilek, Michael
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Karlsson, Mikael
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Linke, Sebastian
    Göteborgs Universitet.
    Smolarz, Katarzyna
    Gdansk University, Poland.
    Environmental Governance of the Baltic Sea: Identifying Key Challenges, Research Topics and Analytical Approaches2016In: Environmental Governance of the Baltic Sea / [ed] Michael Gilek, Mikael Karlsson, Sebastian Linke, Katarzyna Smolarz, Springer, 2016, 1, 1-17 p.Chapter in book (Refereed)
    Abstract [en]

    The Baltic Sea ecosystem is subject to a wide array of societal pressures and associated environmental risks (e.g. eutrophication, oil discharges, chemical pollution, overfishing and invasive alien species). Despite several years of substantial efforts by state and non-state actors, it is still highly unlikely that the regionally agreed environmental objectives of reaching “good environmental status” by 2021 in the HELCOM BSAP (Baltic Sea Action Plan) and by 2020 in the EU Marine Strategy Framework Directive (MSFD) will be met. This chapter identifies key research topics, as well as presents analytical perspectives for analysing the gap between knowledge and action in Baltic Sea environmental governance. It does so by outlining important trends and key challenges associated with Baltic Sea environmental governance, as well as by summarising the scope and results of individual chapters of this interdisciplinary volume. The analysis reveals the development of increasingly complex governance arrangements and the ongoing implementation of the holistic Ecosystem Approach to Management, as two general trends that together contribute to three key challenges associated with (1) regional and cross - sectoral coordination and collaboration, (2) coping with complexity and uncertainty in science-policy interactions and (3) developing communication and knowledge sharing among stakeholder groups. Furthermore, to facilitate analysis of environmental governance opportunities and obstacles both within and across specific environmental issues, this chapter reviews the scientific literature to pinpoint key research issues and questions linked to the identified governance challenges.

  • 21.
    Hardisty, Dalton S.
    et al.
    University of California-Riverside, Riverside California, USA .
    Riedinger, Natascha
    Oklahoma State University, Stillwater, Oklahoma, USA .
    Planavsky, Noah J.
    Yale University, New Haven, Connecticut, USA.
    Asael, Dan
    Yale University, New Haven, Connecticut, USA.
    Andrén, Thomas
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Jorgensen, Bo B.
    Aarhus University, Aarhus C, Denmark .
    Lyons, Timothy W.
    University of California-Riverside, Riverside California, USA .
    A Holocene History Of Dynamic Water Column Redox Conditions In The Landsort Deep, Baltic Sea2016In: American Journal of Science, ISSN 0002-9599, E-ISSN 1945-452X, Vol. 316, no 8, 713-745 p.Article in journal (Refereed)
    Abstract [en]

    The modern Baltic Sea is the world's largest anthropogenically forced anoxic basin. Using integrated geochemical records collected during Integrated Ocean Drilling Program (IODP) Expedition 347 from the deepest and one of the most reducing sub-basins in the Baltic Sea, Landsort Deep, we explore the degree and frequency of natural anoxia through the Baltic Holocene. A marked decrease in carbon-to-sulfur ratios (C/S) from the cores indicate the transition from the Baltic Ice Lake to the current brackish sea, which occurred about 8.5 kyrs B.P. Following this, laminations throughout sediments recording brackish deposition suggest sustained anoxia or extreme low oxygen, while high molybdenum (Mo) concentrations of >100 ppm and iron (Fe) geochemistry suggest water column sulfide accumulation, or euxinia, that persisted beyond seasonal timescales during deposition of two distinct sapropel units. Sedimentary Mo isotope values range from +1.11 to -0.50 permil, which are distinctly fractionated from modern Baltic seawater (+2.26 to -2.67 parts per thousand) and thus indicate that each of the sapropels experienced only weak and/or oscillatory euxinia-in contrast to the more stable euxinic conditions of more restricted basins. A shift in delta Mo-98 starting above the lower sapropel to a distinctly more negative range suggests particularly weak and oscillatory euxinia, with an enhanced contribution of manganese (Mn) redox cycling to Mo deposition relative to the lower portion of the profile. This conclusion is supported by extreme sedimentary Mn enrichments of up to 15 weight percent. We interpret the combined data to indicate episodic but major Baltic inflow events of saline and oxygenated North Sea water into the anoxic Landsort Deep that limited the concentrations and residence time of water column sulfide and caused episodic oxide deposition. Considering the temporal overlap between the most reducing conditions and periods of redox instability, we hypothesize that major Baltic inflows, as is observed today, lead to short-term instability while simultaneously supporting longer-term Baltic anoxia by strengthening the halocline. Ultimately, our results indicate that periods more reducing than the modern Baltic Sea have occurred naturally over the Holocene, but the characteristic dynamic saline inputs have historically prevented the relatively more widespread and stable anoxia observed in other classic restricted basins and will likely continue to do so.

  • 22.
    Hassler, Björn
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Oil Spills from Shipping: a case study of the governance of accidental hazards and intentional pollution in the Baltic Sea2016In: Environmental Governance of the Baltic Sea: / [ed] Michael Gilek, Mikael Karlsson, Sebastian Linke, Katarzyna Smolarz, Springer, 2016, 125-146 p.Chapter in book (Refereed)
  • 23.
    Johansson, Johanna
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Participation and deliberation in Swedish forest governance: The process of initiating a National Forest Program2016In: Forest Policy and Economics, ISSN 1389-9341, E-ISSN 1872-7050, Vol. 70, 137-146 p.Article in journal (Refereed)
    Abstract [en]

    Over the last two decades intergovernmental organizations have supported the initiation of National Forest Programs (NFPs): forums for joint deliberation by the state, private companies and NGOs that are intended to resolve conflicts over forestry and enhance sustainability. However, NFPs do not always reconcile conflicting perspectives or produce legitimate strategies for sustainable forestry. Thus, further analysis of NFPs' organization and processes is required, including exploration of effective means to address such challenges in early stages. These are key concerns of this paper, focusing on the first process to establish a Swedish NFP. Possibilities for an NFP to constitute a new arena for deliberation and consensus-building, producing forest policy statements and action plans considered legitimate by various stakeholders, are discussed. A number of key challenges are identified through a theoretical framework based on notions regarding the input and output legitimacy of collaborative governance. Analysis of official documentation, records of public hearings and stakeholder comments from the establishment phase in 2013–2015 suggests that the process will continually face a number of challenges, including balancing production and conservation values in the new bio-economy and securing equal stakeholder participation. The paper concludes with some remarks on the future of the NFP process.

  • 24.
    Jönsson, Anna-Maria
    et al.
    Södertörn University, School of Culture and Education, Media and Communication Studies.
    Boström, Magnus
    Örebro universitet.
    Dreyer, Marion
    DIALOGIK.
    Söderström, Sara
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Risk Communication and the Role of the Public: Towards Inclusive Environmental Governance of the Baltic Sea?2016In: Environmental Governance of the Baltic Sea / [ed] Michael Gilek Mikael Karlsson Sebastian Linke Katarzyna Smolarz, Springer, 2016, 1, 205-227 p.Chapter in book (Refereed)
    Abstract [en]

    This chapter focuses on forms of and challenges for risk communication within regional environmental governance, based on an analysis of five environmental risks in the Baltic Sea – marine oil transportation, chemicals, overfishing, eutrophication and alien species. We address questions about how risks are framed and communicated and also analyse the role of communication in the governance process. Our main focus is on risk communication with the public (e.g. existing institutional arrangements and procedures of risk communication), but we also relate this analysis to discussions on communication with a broad range of actors and issues of stakeholder participation and communication. In the study we have identified some examples of relatively well-working risk communication with parts of the organised public in the Baltic Sea region (BSR), such as in fisheries or eutrophication, but also a number of different barriers and obstacles. Our key result from this study is that BSR consists of many national institutions for risk communication, but that there are hardly any centralised institutions for risk communication activities relating to environmental governance in the region. Another key conclusion is that public risk communication in this array of cross-national environmental risks is restricted mainly to (one-way) information. Against this backdrop and from our empirical and theoretical knowledge of risk communication and the role of the public, we finally suggest some ways for improvement.

  • 25.
    Karlsson, Mikael
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Gilek, Michael
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Governance of Chemicals in the Baltic Sea Region: A Study of Three Generations of Hazardous Substances2016In: Environmental Governance of the Baltic Sea / [ed] Michael Gilek, Mikael Karlsson, Sebastian Linke, Katarzyna Smolarz, Springer, 2016, 1, 97-123 p.Chapter in book (Refereed)
    Abstract [en]

    This study zooms in on public governance in the Baltic Sea region of three generations of notorious hazardous substances, namely, PCBs, PBDEs and PFOS/PFOA. Following regulation, PCB concentrations in the Baltic Sea have decreased substantially although they are still above pre-industrial levels. PBDE levels have also decreased in some places, but they too are well above targeted levels, whereas the situation for PFOS and in particular for PFOA has hardly improved at all. In the case of PCBs, while comprehensive measures took long to implement, initial preventive measures were taken early based on the precautionary principle. This contrasts with the cases of PBDEs, PFOS and PFOA, where the burden of proof on policy-makers has been high and hence caused severe delays in policymaking. There has, however, generally been a positive interplay in all three cases between the EU, which has legislated, and HELCOM, which has taken the role of concept and agenda setting. While environment-oriented policies, such as the Ecosystem Approach to Management under MSFD and BSAP, have grown in importance over time, polluter-oriented chemical legislation has been more important when it comes to final decision-making. Nevertheless, the general response has been reactive rather than proactive, and there is no indication that society responds faster today than in the past, at least not given the fact that awareness, experience and knowledge are greater today than a few decades back. Based on that insight, the article discusses various options for improving governance.

  • 26.
    Karlsson, Mikael
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Gilek, Michael
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Lundberg, Cecilia
    Åbo Akademi, Finland.
    Eutrophication and the Ecosystem Approach to Management: A Case Study of Baltic Sea Environmental Governance2016In: Environmental Governance of the Baltic Sea / [ed] Michael Gilek, Mikael Karlsson, Sebastian Linke, Katarzyna Smolarz, Springer, 2016, 1, 21-44 p.Chapter in book (Refereed)
    Abstract [en]

    This study investigates if and how present institutional structures and interactions between scientific assessment and environmental management are sufficient for implementing the ecosystem approach to management (EAM) in the case of Baltic Sea eutrophication. Concerning governance structures, a number of institutions and policies focus on issues relating to eutrophication. In many cases, the policies are mutually supportive rather than contradictory, as seen, for example, in the case of the mutually supportive BSAP and MSFD. The opposite is true, however, when it comes to the linkages with some other policy areas, in particular regarding agricultural policy, where the EU CAP subsidises intensive agriculture with at best minor consideration of environmental objectives, thereby undermining EAM. Enhanced policy coherence and stricter policies on concrete measures to combat eutrophication seem well needed in order to reach stated environmental objectives.  When it comes to assessment-management interactions, the science- policy interface has worked well in periods, but the more specific that policies have become, for example, in the BSAP case, the more question marks have been raised about science by affected stakeholders. At present, outright controversies exist, and EAM is far from realised in eutrophication policy in the Baltic Sea region. Besides coping with remaining uncertainties by improving the knowledge on problems and solutions– not least in terms of the socio-economic impacts of eutrophication – it may therefore be valuable to develop venues for improved stakeholder participation.

  • 27.
    Kellner, Martin
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Porseryd, Tove
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Hallgren, S
    Uppsala University.
    Porsch-Hällström, Inger
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology.
    Hansen, S H
    University of Copenhagen, Denmark.
    Olsén, K Håkan
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology.
    Waterborne citalopram has anxiolytic effects and increases locomotor activity in the three-spine stickleback (Gasterosteus aculeatus)2016In: Aquatic Toxicology, ISSN 0166-445X, E-ISSN 1879-1514, Vol. 173, 19-28 p.Article in journal (Refereed)
    Abstract [en]

    Citalopram is an antidepressant drug, which acts by inhibiting the re-uptake of serotonin from the synaptic cleft into the pre-synaptic nerve ending. It is one of the most common drugs used in treatment of depression, it is highly lipophilic and frequently found in sewage treatment plant effluents and surface waters around the world. Citalopram and other selective serotonin re-uptake inhibitors have, at concentrations that occur in nature, been shown to have behavioural as well as physiological effects on fish and other animals. This study is the result of several different experiments, intended to analyse different aspects of behavioural effects of chronic citalopram exposure in fish. Our model species the three-spine stickleback is common in the entire northern hemisphere and is considered to be a good environmental sentinel species. Female three-spine sticklebacks were exposed to 0, 1.5 and 15μg/l nominal concentrations of citalopram for 21 days and subjected to the novel tank (NT) diving test. In the NT test, the fish exposed to 1.5μg/l, but not the 15μg/l fish made a significantly higher number of transitions to the upper half and stayed there for significantly longer time than the fish exposed to 0μg/l. The 15μg/l group, however, displayed a significantly lower number of freeze bouts and a shorter total freezing time. The test for locomotor activity included in the NT test showed that fish treated with 1.5 and 15μg/l displayed a significantly higher swimming activity than control fish both 5-7 and 15-17min after the start of the experiment. In the next experiment we compared fish exposed to 1.5μg/l and 0.15μg/l to pure water controls with regard to shoaling intensity and found no effect of treatment. In the final experiment the propensity of fish treated with 1.5μg/l to approach an unknown object and aggressive behaviour was investigated using the Novel Object test and a mirror test, respectively. The exposed fish ventured close to the unknown object significantly more often and stayed there for significantly longer time than unexposed fish. The aggression test yielded no statistically significant effects. It is concluded that citalopram changes the behaviour of the three-spine stickleback in a way that is likely to have ecological consequences and that it must not be considered an environmentally safe pharmaceutical.

  • 28.
    Larsson, Josefine
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Lönn, Mikael
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology.
    Lind, Emma E
    SLU.
    Świeżak, Justyna
    University of Gdansk, Gdynia , Poland.
    Smolarz, Katarzyna
    University of Gdansk, Gdynia , Poland.
    Grahn, Mats
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology.
    Sewage treatment plant associated genetic differentiation in the blue mussel from the Baltic Sea and Swedish west coast2016In: PeerJ, ISSN 2167-8359, E-ISSN 2167-8359, Vol. 4, e2628Article in journal (Refereed)
    Abstract [en]

    Human-derived environmental pollutants and nutrients that reach the aquatic environment through sewage effluents, agricultural and industrial processes are constantly contributing to environmental changes that serve as drivers for adaptive responses and evolutionary changes in many taxa. In this study, we examined how two types of point sources of aquatic environmental pollution, harbors and sewage treatment plants, affect gene diversity and genetic differentiation in the blue mussel in the Baltic Sea area and off the Swedish west coast (Skagerrak). Reference sites (REF) were geographically paired with sites from sewage treatments plant (STP) and harbors (HAR) with a nested sampling scheme, and genetic differentiation was evaluated using a high-resolution marker amplified fragment length polymorphism (AFLP). This study showed that genetic composition in the Baltic Sea blue mussel was associated with exposure to sewage treatment plant effluents. In addition, mussel populations from harbors were genetically divergent, in contrast to the sewage treatment plant populations, suggesting that there is an effect of pollution from harbors but that the direction is divergent and site specific, while the pollution effect from sewage treatment plants on the genetic composition of blue mussel populations acts in the same direction in the investigated sites.

  • 29.
    Lehtilä, Kari
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Dahlgren, Johan P
    University of Southern Denmark, Odense M, Denmark .
    Garcia, Maria Begoña
    Instituto Pirenaico de Ecología (CSIC), Saragossa, Spain.
    Leimu, Roosa
    University of Oxford, Oxford, UK .
    Syrjänen, Kimmo
    Finnish Environment Institute, Helsinki, Finland.
    Ehrlén, Johan
    Stockholm University.
    Forest succession and population viability of grassland plants: long repayment of extinction debt in Primula veris.2016In: Oecologia, ISSN 0029-8549, E-ISSN 1432-1939, Vol. 181, no 1, 125-135 p.Article in journal (Refereed)
    Abstract [en]

    Time lags in responses of organisms to deteriorating environmental conditions delay population declines and extinctions. We examined how local processes at the population level contribute to extinction debt, and how cycles of habitat deterioration and recovery may delay extinction. We carried out a demographic analysis of the fate of the grassland perennial Primula veris after the cessation of grassland management, where we used either a unidirectional succession model for forest habitat or a rotation model with a period of forest growth followed by a clear-cut and a new successional cycle. The simulations indicated that P. veris populations may have an extinction time of decades to centuries after a detrimental management change. A survey of the current incidence and abundance of P. veris in sites with different histories of afforestation confirmed the simulation results of low extinction rates. P. veris had reduced incidence and abundance only at sites with at least 100 years of forest cover. Time to extinction in simulations was dependent on the duration of the periods with favourable and unfavourable conditions after management cessation, and the population sizes and growth rates in these periods. Our results thus suggest that the ability of a species to survive is a complex function of disturbance regimes, rates of successional change, and the demographic response to environmental changes. Detailed demographic studies over entire successional cycles are therefore essential to identify the environmental conditions that enable long-term persistence and to design management for species experiencing extinction debts.

  • 30.
    Lewis, J.P.
    et al.
    Loughborough University, Loughborough, England.
    Ryves, D.B.
    Loughborough University, Loughborough, England.
    Rasmussen, P.
    National Museum of Denmark, Lyngby, Denmark / Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark.
    Olsen, J.
    Aarhus University, Aarhus, Denmark.
    Knudsen, K.-L.
    Aarhus University, Aarhus, Denmark.
    Andersen, S.H.
    Moesgård Museum, Højbjerg, Danmark.
    Weckström, K.
    Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark.
    Clarke, A.L.
    APEM Aquatic Scientists Ltd, Stockport, UK.
    Andrén, Elinor
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Juggins, S.
    Newcastle University, Newcaslte, England.
    The shellfish enigma across the Mesolithic-Neolithic transition in southern Scandinavia2016In: Quaternary Science Reviews, ISSN 0277-3791, E-ISSN 1873-457X, Vol. 151, 315-320 p., http://dx.doi.org/10.1016/j.quascirev.2016.09.004Article in journal (Refereed)
    Abstract [en]

    The well-known and widespread replacement of oysters (abundant during the Mesolithic period) by cockles and mussels in many Danish Stone Age shell middens ca. 5900 cal yrs BP coincides with the transition to agriculture in southern Scandinavia. This human resource shift is commonly believed to reflect changing resource availability, driven by environmental and/or climatic change at the Mesolithic-Neolithic transition rather than cultural choice. While several hypotheses have been proposed to explain the “Mesolithic-Neolithic oyster decline”, an explanation based on a sudden freshening of the inner Danish waters has received most attention. Here, for the first time, we test and refute this long-standing hypothesis that declining salinity explains the marked reduction in oysters identified within numerous shell middens across coastal Denmark at the Mesolithic-Neolithic transition using quantitative and qualitative salinity inference from several, independent proxies (diatoms, molluscs and foraminifera) from multiple Danish fjord sites. Alternatively, we attribute the oyster decline to other environmental causes (particularly changing sedimentation), ultimately driven by external climatic forcing. Critical application of such high-quality environmental archives can reinvigorate archaeological debates and can aid in understanding and managing environmental change in increasingly impacted coastal regions.

  • 31.
    Linke, Sebastian
    et al.
    Göteborgs Universitet.
    Gilek, Michael
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Karlsson, Mikael
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Science-Policy Interfaces in Baltic Sea Environmental Governance: Towards Regional Cooperation and Management of Uncertainty?2016In: Environmental Governance of the Baltic Sea / [ed] Gilek et al., Springer, 2016, 1, 173-203 p.Chapter in book (Refereed)
    Abstract [en]

    This chapter investigates and compares the interactions between science and policy (risk assessments and risk management) in five cases of environmental governance of the Baltic Sea: eutrophication, fisheries, invasive alien species, chemical pollution and oil discharges. An efficient interplay between science and policy is important for successful environmental governance, which applies particularly to the Baltic Sea where all five risks pose serious threats to environmental, social and economic aspects of sustainability. We use science-policy theory and an analytical framework based on a categorisation of relevant management responses linked to different states of incomplete knowledge (risk, uncertainty, ambiguity, ignorance) to investigate two main characteristics of science-policy interfaces: (1) organisational structures and (2) procedural aspects of managing scientific uncertainties and stakeholder disagreements. The analyses reveal differences and similarities in institutional and organisational designs of the respective assessment-management interactions, as well as in terms of how scientific uncertainties, stakeholder disagreements and socio-political ambiguities are addressed. All the five science-policy interfaces expose science-based management approaches that commonly are not able to cope sufficiently well with the complexities, uncertainties and ambiguities at hand. Based on our cross-case analyses, we conclude by recommending five key aspects that need to be addressed to improve science-policy interactions in Baltic Sea environmental governance: (1) more adaptive organisational structures in terms of time, context and place dependency, (2) increased knowledge integrations, (3) a more careful consideration of stakeholder participation and deliberation, (4) better management of uncertainty and disagreements and (5) increased transparency and reflection in the communication of science-policy processes.

  • 32.
    Ljungberg, Stina
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Drivkrafter och hinder ur ett multifunktionellt perspektiv: Förutsättningar och utvecklingsområden för produktion av biobränsle från våtmarker2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Sweden have already reached several of their goals for energy consumption, but the overall goal to become a fossil free society can still be seen as a driving force to keep developing renewable fuels. There is financial support for wetland construction, reduce impact on the climate, improve the natural environment, for developing new techniques and for biomass fuel plants. Still, cultivation of wetland crops for energy extraction are not yet well established on the energy market. After interviews with actors interested and knowledgeable in this field, this study presents driving forces and barriers affecting the development of this energy source. Driving forces comes from the ambition to move away from fossil fuels, decrease emissions of nutrients, make room for biodiversity, and provide services for the society while helping to reach climate and environmental goals. The barriers affecting this development is that special machines might be needed for handling of the crops and also to harvest the sensitive wetlands while large areas would be needed to increase profitability. The financial support available is not enough to cover the costs for production. Also, the prices on electricity and fossil fuels are low, which lowers the profitability for this type of energy source. Bioenergy producers have not yet found an effective way to extract energy from the crops. All of this makes the demand for energy crops from wetlands small. Despite this, wetlands provide several important ecosystem services and it is therefore recommended to use the management philosophy of multiple-use. With a multifunctional view of wetlands, the value of its ecosystem services can be added to the calculations of energy production and increase its role in reaching several national climate and environmental goals.

  • 33.
    Nesme, Joseph
    et al.
    Université de Lyon, Ecully, France / Helmholtz Zentrum München Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH), Neuherberg, Germany.
    Achouak, Wafa
    Aix-Marseille Université, Saint-Paul-lez-Durance, France.
    Agathos, Spiros N
    Catholic University of Louvain, Louvain-la-Neuve, Belgium / Yachay Tech University, Urcuquí, Ecuador.
    Bailey, Mark
    Centre for Ecology and Hydrology, Oxford, UK.
    Baldrian, Petr
    Institute of Microbiology of the Czech Academy of Sciences, Praha, Czech Republic.
    Brunel, Dominique
    Centre National de Génotypage, Evry, France.
    Frostegård, Åsa
    Norwegian University of Life Sciences, Aas, Norway.
    Heulin, Thierry
    Aix-Marseille Université, Saint-Paul-lez-Durance, France.
    Jansson, Janet K
    Pacific Northwest National Laboratory, Richland, WA, USA.
    Jurkevitch, Edouard
    The Hebrew University of Jerusalem, Rehovot, Israel.
    Kruus, Kristiina L
    Technical Research Centre of Finland, Espoo, Finland.
    Kowalchuk, George A
    Utrecht University, Utrecht, Netherlands.
    Lagares, Antonio
    Universidad Nacional de La Plata, La Plata, Argentina.
    Lappin-Scott, Hilary M
    Swansea University, Swansea, UK.
    Lemanceau, Philippe
    Université de Bourgogne, Dijon, France.
    Le Paslier, Denis
    Université d'Evry Val d'Essonne, Evry, France.
    Mandic-Mulec, Ines
    University of Ljubljana, Ljubljana, Slovenia.
    Murrell, J Colin
    University of East Anglia, Norwich, UK.
    Myrold, David D
    Oregon State University, Corvallis, OR, USA.
    Nalin, Renaud
    NALINOV, Dremil Lafage, France.
    Nannipieri, Paolo
    University of Florence, Florence, Italy.
    Neufeld, Josh D
    University of Waterloo, Waterloo, ON, Canada.
    O'Gara, Fergal
    National University of Ireland, Cork, Ireland / Curtin University, Perth, WA, Australia.
    Parnell, John J
    National Ecological Observatory Network, Boulder, CO, USA.
    Pühler, Alfred
    Bielefeld University, Bielefeld, Germany.
    Pylro, Victor
    René Rachou Research Centre, Belo Horizonte, Brazil.
    Ramos, Juan L
    Consejo Superior de Investigaciones Científicas, Granada, Spain.
    Roesch, Luiz F W
    Federal University of Pampa, São Gabriel, Brazil.
    Schloter, Michael
    Helmholtz Zentrum München Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH), Neuherberg, Germany.
    Schleper, Christa
    University of Vienna, Vienna, Austria.
    Sczyrba, Alexander
    Bielefeld University, Bielefeld, Germany.
    Sessitsch, Angela
    AIT Austrian Institute of Technology GmbH, Tulln, Austria.
    Sjöling, Sara
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Sørensen, Jan
    niversity of Copenhagen, Frederiksberg, Denmark.
    Sørensen, Søren J
    University of Copenhagen, Copenhagen, Denmark.
    Tebbe, Christoph C
    Thünen-Institute of Biodiversity, Braunschweig, Germany.
    Topp, Edward
    University of Western Ontario, London, ON, Canada.
    Tsiamis, George
    University of Patras, Agrinio, Greece.
    van Elsas, Jan Dirk
    University of Groningen, Groningen, Netherlands.
    van Keulen, Geertje
    Swansea University, Swansea, UK.
    Widmer, Franco
    Institute for Sustainability Sciences, Agroscope, Zürich, Switzerland.
    Wagner, Michael
    University of Vienna, Vienna, Austria.
    Zhang, Tong
    The University of Hong Kong, Hong Kong, China.
    Zhang, Xiaojun
    Shanghai Jiao Tong University, Shanghai, China.
    Zhao, Liping
    Shanghai Jiao Tong University, Shanghai, China.
    Zhu, Yong-Guan
    Chinese Academy of Sciences, Xiamen, China.
    Vogel, Timothy M
    Université de Lyon, Ecully, France.
    Simonet, Pascal
    Swansea University, Swansea, UK.
    Back to the Future of Soil Metagenomics2016In: Frontiers in Microbiology, ISSN 1664-302X, E-ISSN 1664-302X, Vol. 7, 73Article in journal (Refereed)
  • 34.
    Nilsson, Elinor
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Nordin, Therese
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    100 år av miljöförändringar som de registrerats i Hallsfjärden, västra Östersjön: En biostratigrafisk studie om vad bevarade kiselalger i sediment kan berätta om tidigare miljöförhållande i Hallsfjärden.2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Diatoms are microscopic, photosynthetic, single-celled organisms that are useful in studies of water qualities (eg pH, nutrients, salinity). By analyzing changes in the species composition of diatoms back in time, gives an opportunity to interpret the marine environment affected by various factors (Andren et al, 1999). The aim of the study was to study changes in diatom abundance and composition in Hallsfjärden, a bay in the Baltic Sea located north of Himmerfjärden in Södertälje. The site was chosen because it is a bay that is assumed to have a large environmental impact due to external factors such as increased population growth, water treatment plants, industrial areas, dredging and a link to Lake Mälaren. The purpose of the study therefore to investigate whether there was an environmental impact in Hallsfjärden, in order to draw conclusions about what happened in the area and what has affected the water the last 100 years.

         The survey is conducted by sampling sediment cores, studied by biostratigraphy of fossil diatoms to reconstruct past environmental conditions. The results of the analysis showed that oxygen deficiency was a particular problem, which is related to the eutrophication that are threatening some diatoms and thereby changes the species composition of ecosystems in Hallsfjärden. A plausible interpretation of the analyze results is that Hallsfjärden was adversely affected by the Södertalje area's population growth and Himmerfjärdsverkets startup by high emissions of nutrients. It has on the other hand appeared a positive impact for Himmerfjärdsverkets gradually improved purification with clearer water conditions. Hallsfjärden have proved to be a particularly sensitive ecosystem in this study, with low salinity and strong thermocline, which means that it is more affected by eutrophication and pollution in its drainage area. This causes a problem of eutrophication in Hallsfjärden due to the bay showing the influence of the surrounding areas and its emissions, which later exports further to the Baltic Sea via Himmerfjärden with the southbound flow.

  • 35.
    Petrogiannis, Vasileios
    et al.
    Södertörn University, School of Historical and Contemporary Studies, Institute of Contemporary History.
    Rabe, Linn
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science. Södertörn University, Centre for Baltic and East European Studies (CBEES), Baltic & East European Graduate School (BEEGS).
    What Is It That Holds A Region Together?2016In: Baltic Worlds In-house edition, 5-9 p.Article in journal (Other academic)
  • 36.
    Remling, Elise
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Veitayaki, Joeli
    School of Marine Studies, University of the South Pacific (USP).
    Community-based action in Fiji’s Gau Island: a model for the Pacific?2016In: International Journal of Climate Change Strategies and Management, ISSN 1756-8692, E-ISSN 1756-8706, Vol. 8, no 3, 375-398 p.Article in journal (Refereed)
    Abstract [en]

    Purpose – Drawing on qualitative fieldwork on a remote outer island in Fiji, this paper aims to address a shortcoming in the literature on climate adaptation in the Pacific. Internationally community-based adaptation (CBA) is recognised as a promising approach to help vulnerable populations adjust to climate change. However, with pilot projects in their infancy documented experience for Pacific Islands remains scarce. This limits the ability of the region – faced with persisting development challenges and predicted significant climate impacts – to learn from and build on previous experiences and develop robust responses to climate change.

    Design/methodology/approach – By using a community-based initiative in response to environmental challenges and unsustainable development as a proxy, the paper interrogates the potential usefulness of the CBA framework for the Pacific and identifies potential strengths and weaknesses. Sketching out the process and its outcomes, it shows how the initiative has resulted in a diversity of strategies, ranging from pollution control measures, to improved governance of resources and community participation in decision making, to livelihood and income diversification.

    Findings – Findings indicate that CBA could have a lot of potential for building more resilient communities in the face of climate change and other pressures associated with modernising Pacific societies. However, to be effective, interventions should pay attention to people’s development aspirations; immediate economic, social and environmental benefits; dynamics of village governance, social rules and protocols; and traditional forms of knowledge that can inform sustainable solutions.

    Originality/value – The conclusions provide a reflection on the CBA framework in general and make concrete suggestions for practitioners on how the framework could be usefully implemented in the Pacific context.

  • 37.
    Rodela, Romina
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science. Wageningen University, Wageningen, The Netherlands.
    On the use of databases about research performance: comments on Karlovčec and Mladenić (2015) and others using the SICRIS database2016In: Scientometrics, ISSN 0138-9130, E-ISSN 1588-2861, Vol. 109, no 3, 2151-2157 p.Article in journal (Refereed)
    Abstract [en]

    The accuracy of interdisciplinarity measurements depends on how well the data is used for this purpose and whether it can meaningfully inform about work that crosses disciplinary domains. At present, there are no ad hoc databases compiling information only and exclusively about interdisciplinary research, and those interested in assessing it have to reach out to existing databases that have been compiled for other purposes. Karlovčec and Mladenić (Scientometrics 102:433–454, 2015) saw an opportunity in a national database that brings together information meant to be used for assessing the scientific performance of the Slovene academic community, which they used to obtain information that was then applied to measure interdisciplinarity. However, the context and purpose for which databases are produced have certain implications on their use. In their study, the authors overlooked the social and political context within which that specific database was created, is maintained and is used for (evaluation of research performance). This resulted in an incomplete interpretation of the results obtained and description of the current situation. This commentary addresses two aspects that warrant further consideration: one pertains to the limitations of the dataset itself and the measures used to debunk these, while the second pertains to the line of reasoning behind the integration and use of IDR measures in this study.

  • 38.
    Rosenberg, Anna
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Hand Hygiene Barriers faced byHealth Care Workers in The Gambia:: A Health Belief Model Approach2016Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Health care associated infections cause major challenges to the provision of health care. This isdue to the burden placed on individuals, their families, and health services. Hand hygiene actions are cost effective measures towards reducing the spread of health care associated infections and have proven very effective in preventing microbial transmission during patient care. It has beenproven that health care workers hands are the main routes of transmission of health care associated infections. Despite this, hand hygiene is still frequently overlooked by health careworkers especially in settings with limited resources. This paper therefore explores hand hygieneknowledge and behaviours of public and private health care workers in The Gambia with focuson the health belief model. The required information has been gathered from 4 public and 2 private health care facilities through the use of a questionnaire based on the WHO evaluation toolkit. Hand hygiene knowledge of health care workers corresponded with their hand hygiene behaviour. Inadequate hand hygiene performance was noted in many health care workers as wellas limited availability of hand hygiene resources from health care facilities. Private health care facilities provided better hand hygiene opportunities for their health care workers yet neither private nor public health care facilities offered adequate hand hygiene training and feedback on hand hygiene performances to their health care workers.

  • 39.
    Saunders, Fred
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Complex Shades of Green: Gradually Changing Notions of the 'Good Farmer' in a Swedish Context2016In: Sociologia Ruralis, ISSN 0038-0199, E-ISSN 1467-9523, Vol. 56, no 3, 391-407 p.Article in journal (Refereed)
    Abstract [en]

    There are ever-growing demands on farmers to consider the wider environmental implications of production, not least in the Baltic Sea Region where concerns about agricultural-related eutrophication are significant. In Sweden, farmers are being nudged through voluntary agri-environmental measures, enticed by the market and compelled to make the transition from a productivist agriculture to a multifunctional one. Drawing on the ‘good farmer’ concept, inspired by Bourdieu, this paper studies Swedish conventional and agri-environmental farmers’ views and reflections on the changing relationship between farming practices and the environment. The paper finds that despite 25 years of agri-environmental policy in Sweden, some conventional farmers are still mired in a narrow productivist mindset. That said, the study concludes that we should be wary of conceiving the ‘good farmer’ too strictly in productivist terms, given that the ‘rules of the agricultural game’ in Sweden are leading to a more divergent farmer habitus. Farmers are looking for opportunities within the multifunctional agricultural field, which increasingly demands and expects all farmers to embed social and environmental goals into production considerations.

  • 40.
    Saunders, Fred P.
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Gallardo-Fernández, Gloria L.
    Uppsala University, Centre for Sustainable Development.
    Van Tuyen, Truong
    Hue University of Agriculture and Forestry, Vietman.
    Raemaekers, Serge
    University of Cape Town, South Africa.
    Marciniak, Boguslaw
    Dıaz Pla, Rodrigo
    Universidad Academia de Humanismo Cristiano, Chile.
    Transformation of small-scale fisheries: critical transdisciplinary challenges and possibilities2016In: Current Opinion in Environmental Sustainability, ISSN 1877-3435, E-ISSN 1877-3443, Vol. 20, no June, 26-31 p.Article in journal (Refereed)
    Abstract [en]

    One way to confront the global marginalisation of small-scale fisheries (SSF) is to support a sustainable transformation of these coastal communities. In 2014/15, a network of researchers and SSF communities from four countries cooperated in a transdisciplinary research approach to examine governance shifts, fish stock collapses, power structures, future visions and transformation strategies. We combined a political ecology approach with transformation theory to: (i) consider how local context is affected by structural changes and (ii) identify place-based transformational strategies for each case. The global emergence of large-scale fisheries and associated free markets appeared as key factors negatively affecting SSF and coastal sustainability. Through envisioning exercises and context dependent analysis, SSF communities articulated possible and actual strategies towards sustainability that will require ongoing support.

  • 41.
    Saunders, Fred P.
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Gilek, Michael
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Gee, Kira
    Helmholtz-Zentrum Geesthacht Zentrum für Material-und Küstenforschung GmbH.
    Göke, Cordula
    Aarhus University.
    Hassler, Björn
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Lenninger, Paula
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Luttmann, Anne
    Leibniz Institute for Baltic Sea Research Warnemünde.
    Morf, Andrea
    Swedish Institute for the Marine Environment.
    Piwowarczyk, Joanna
    Institute of Oceanology of the Polish Academy of Sciences.
    Schiele, Kerstin
    Leibniz Institute for Baltic Sea Research Warnemünde.
    Stalmokaite, Igne
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Strand, Helena
    Swedish Institute for the Marine Environment.
    Tafon, Ralph
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Zaucha, Jacek
    Maritime Institute in Gdansk.
    BALTSPACE Deliverable: D1.2: Final Guidance Document on Analysing Possibilities and Challenges for MSP Integration2016Report (Other academic)
    Abstract [en]

    This report makes a case for examining the role of integration and its links to how

    sustainable development is variably expressed in different marine spatial planning (MSP)

    contexts. The aim of the report is to refine an analytical approach to examine integration

    in MSP in the Baltic Sea through consideration of preliminary empirical results from a

    broad range of case studies. MSP is conceptualised here as a governance platform for

    improving processes to enable political decision-making with the aim to achieve

    sustainable development of marine space. Integration is universally espoused as a

    means to address a variety of challenges closely related to MSP’s sustainable

    development ambitions, such as supporting inter-sectoral decision-making, stakeholder

    engagement and cross-border interaction, but its role, value and implementation in MSP

    has not been examined in any empirical detail. Although increased integration may well

    have positive effects on MSP processes and outcomes, in some instances, the contrary

    might also be the case. With these thoughts in mind, this report argues that we need to

    analyse integration as a multidimensional concept in MSP processes and outcomes.

    Based on understandings of integration derived from MSP experience and concepts in the

    broader social science literature, an analytical framework is developed to examine MSP

    practice in the Baltic Sea. Integration is conceptualised as including

    transboundary/cross-border, policy/sectoral, stakeholder and knowledge dimensions.

    Despite common requirements under the European Union MSP Directive and policies,

    national jurisdictions are likely to adopt MSP differently, which has implications for the

    role integration is likely to play in national and transnational MSP practice. Drawing on

    empirical data derived from national MSP studies, stakeholder dialogue forums and

    preliminary interviews with stakeholders the analytical framework is applied to examine

    how particular integration challenges play out in both national and transnational marine

    space across the Baltic Sea Region. The analytical framework is then used to structure

    an examination of several case studies from different parts of the Baltic Sea Region.

    Based on consideration of the empirical work and an analyses of previous experiences in

    science and practice we then propose some revisions to the initial analytical framework

    presented earlier. The revised analytical framework, while capturing the integration

    dimensions mentioned earlier, also includes consideration of the following aspects of

    integration: how ‘balance’ between sustainable development dimensions is exercised;

    the character of cross-boundary interactions; and temporal dynamics. Instead of a

    conclusion, short think-pieces are presented to capture the main insights of the report,

    which could be used to aid the examination of integration in MSP in other MSP contexts,

    beyond the Baltic Sea.

  • 42.
    Siebenhüner, B.
    et al.
    Carl von Ossietzky University of Oldenburg, Oldenburg, Germany.
    Rodela, Romina
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science. Wageningen University and Research Centre, Wageningen, The Netherlan.
    Ecker, F.
    University of Freiburg, Germany.
    Social learning research in ecological economics: A survey2016In: Environmental Science and Policy, ISSN 1462-9011, E-ISSN 1873-6416, Vol. 55, 116-126 p.Article, review/survey (Refereed)
    Abstract [en]

    Social learning studies emerged as part of the ecological economics research agenda rather recently. Questions of how human societies and organisations learn and transition on the basis of environmental knowledge relate to the core ideas of ecological economics with its pluralistic understanding of human behaviour in contrast to the limited focus on incentive-driven behaviour. Our study analyses the emergence and thematic foci of social learning studies within ecological economics over the past 15 years. We selected and analysed 54 articles published after peer review in established journals adhering to the epistemological tradition of ecological economics. This study is guided by the interest in how social learning is conceptualised, how this research is positioned in terms of process dynamics, causal factors and outcomes of learning. Results show, that the number of related papers grew substantially in recent years. Also the role of formal or informal institutions has been found to be a strong causal factor for social learning and change processes vis-à-vis technological, economic or political factors. In addition, there is a growing awareness of social learning processes in various environmental policy fields such as biodiversity governance, water and land management, fisheries, and climate adaptation. We conclude that these insights can give new impulses to research on socio-ecological transition and to the related debate on societal change and transformation processes as core topics for ecological economics.

  • 43.
    Sjöling, Sara
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Thureborn, Petter
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Livet i havets djup2016In: HavsUtsikt- Om havsmiljön och Svensk havsforskning, ISSN 1104-0513, no 2, 16-18 p.Article in journal (Other (popular science, discussion, etc.))
  • 44.
    Sommer, Christian
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Olsén, K. Håkan
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology.
    Sex odour preference in guppy (Poecilia wingei) males is influenced by the social environment2016In: Behaviour, ISSN 0005-7959, E-ISSN 1568-539X, Vol. 153, no 12, 1419-1434 p.Article in journal (Refereed)
    Abstract [en]

    The social environment of animals, particularly in the early stages of life, can have great impact on species-specific and sex-specific behaviours. These changes can be irreversible and continue during the entire life. In the present study we asked the question whether the social environment of male Endler's guppies, Poecilia wingei, housed in an all-male community could affect their preference response to female or male odour cues in a flow through Y-maze. After 30 days in an all-male group males were tested for their preference-avoidance responses to conspecific odours. The males were attracted to male-scented water but not to water scented by females. In simultaneous choice between male and female odours they demonstrated no significant preference. The males were attracted to male-scented water after they were kept for 48 h or 12 days with females. After the Y-maze tests the males' were placed with two females and their courting behaviour were recorded. The males showed low frequencies of reproductive behaviours. In the all-male group the males had been courting each other. The results show that the social environment influence sexual odour preference and courting behaviour in guppy males.

  • 45.
    Sukovich, Ninél
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Backman, Jennifer
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Kan musselextrakt (Mytilus edulis) inducera födosök hos omnivoren ruda, Carassius carassius (Linnaeus, 1758)?2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Over the last three decades there has been a significant increase in aquaculture production and the demand for farmed fish is predicted to rise further. More fish are being caught to become fishmeal in aquaculture, than for direct human consumption use, while a large number of fish stocks are being depleted. Many popular farmed species are carnivores and thus brought up on a diet consisting of fishmeal and fish oil. However, several studies have shown that several fish species can be brought up on a diet consisting of mussel meal instead of fishmeal. If so, this finding can possibly lead to a more sustainable fishing in the future by reducing the number of wild-caught fish. The purpose of this study has been to examine if mussel meal extract can induce foraging in the omnivorous species crucian carp (Carassius carassius), a commercial fish that is mainly farmed in China. Induced foraging can indicate that crucian carp could become accustomed to mussels, even though mussels are not part of its natural food source. The results revealed that foraging was induced in the crucian carp by conventional feed for carp, the control diet, but not by extract of mussels.

  • 46.
    Svanberg, Ingvar
    et al.
    Institutionen för rysslandsstudier Uppsala universitet.
    Bonow, Madeleine
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Cios, Stanislaw
    Polish Ministry of Foreign Affairs,Warsaw, Poland.
    Fishing For Smelt, Osmerus Eperlanus (Linnaeus, 1758): A traditional food fish – possible cuisinein post-modern Sweden?2016In: Slovak Ethnology, ISSN 1335-1303, Vol. 2, no 64Article in journal (Refereed)
    Abstract [en]

    For the rural population in Sweden, fishing in lakes and rivers was of great importanceuntil recently. Many fish species served as food or animal fodder, or were used tomake glue and other useful products. But the receding of lakes in the nineteenthcentury, and the expansion of hydropower and worsening of water pollution in thetwentieth, contributed to the decline of inland fisheries. At the same time, marinefish became more competitive on the Swedish food market. In some regions, however,certain freshwater species continued to be caught for household consumption wellinto the twentieth century. One such species was the smelt (Osmerus eperlanus),which fifty years ago was still of economic importance. Nowadays, however, smeltis only caught in very low volumes; its role is therefore insignificant. In neighbouringcountries, however – such as Estonia, Lithuania, and Russia – it is still being exploitedcommercially. In Germany, where water quality has improved in rivers and restaurantshave shown increasing interest in smelt, a successful revival for the fish as a regionaland seasonal food can be seen. Smelt fishing has dimensions which are not onlyculinary, but social and cultural as well. Traditional ways of food preparation can betransformed into modern haute cuisine. Smelt fishing has the potential to developcommercially in Sweden also.

  • 47.
    Söderström, Sara
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Kern, Kristine
    eibniz Institute for Regional Development and Structural Planning (IRS) & University of Potsdam, Germany.
    Boström, Magnus
    Örebro universitet.
    Gilek, Michael
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    ‘Environmental Governance’ and ‘Ecosystem Management’: Avenues for Synergies between Two Approaches2016In: Interdisciplinary Environmental Review, ISSN 1521-0227, E-ISSN 2042-6992, Vol. 17, no 1, 1-19 p.Article in journal (Refereed)
    Abstract [en]

    Based on a literature review of over 160 journal articles and books, this paper examines the ecosystem management and environmental governance approaches, and looks for common topics and integrated research agendas. While scientific articles on environmental governance stem primarily from social science research, the ecosystem management approach is more natural-science-oriented. A review of journal articles from the ISI Web of Knowledge (Web of Science) reveals that the two research communities hardly interact. The paper discusses two thematic linkages between the two approaches: the debates dealing with the scale and level of environmental policy; and the discussions surrounding multi-stakeholder participation. Moreover, the article identifies areas with a high potential for the establishment of common ground, such as the current discussion on science-policy interfaces. We argue for more interaction, claim that the two research approaches can learn from each other, and discuss the potential for the development of interdisciplinary research agendas

  • 48.
    Thureborn, Petter
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Microbial Ecosystem Functions Along the Steep Oxygen Gradient of the Landsort Deep, Baltic Sea2016Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Through complex metabolic interactions aquatic microbial life is essential as a driver of ecosystem functions and hence a prerequisite for sustaining plant and animal life in the sea and on Earth. Despite its ecological importance, infor­mation on the complexity of microbial functions and how these are related to environmental conditions is limited. Due to climate change and eutrophication, marine areas facing oxygen depletion are increasing and predicted to continue to do so in the future. Vertically steep oxygen gradients are particularly pronoun­ced in the Baltic Sea. In this thesis, therefore, the ecosystem functions of micro­bial communities were investigated, using metagenomics, to understand how they were distributed along the steep oxygen gradient at the Landsort Deep, the deepest point of the Baltic Sea. Furthermore, microbial communities from the Lands­ort Deep transect were compared to microbial communities of other marine environments to establish whether the environment at this site resulted in a characteristic community. To reveal what microbial community functions and taxa were active in the anoxic sediment a metatranscriptomic approach was used. Results showed a marked effect of the coupled environmental parameters dissolved oxygen, salinity and temperature on distribution of taxa and par­ti­cularly community functions. Microbial communities showed functional capa­cities consistent with a copiotrophic life-style dependent on organic ma­terial sinking through the water column. The eutrophic condition with high organic load was further reflected in the metatranscriptome of the anoxic sedi­ment com­munity, which indicated active carbon mineralisation through ana­erobic hetero­trophic-autotrophic community synergism. New putative linkages between nitro­gen and- sulphur metabolisms were identified at anoxic depths. Further­more, viable Cyanobacteria in the anoxic sediment was evident from the tran­script analyses as another reflection of marine snow. High abundance and expres­­sion of integron integrases were identified as a charac­teristic feature of the Lands­ort Deep communities, and may provide these communities with a mech­an­ism for short-term-adaptation to environmental change. In summary, this thesis clearly documents what impact eutrophication and oxygen depletion have on microbial community functions. Furthermore, it specifically advances the mechanistic insight into microbial processes in anoxic deep-water sediment at both genomic and transcriptional level. Given the predicted progress of oxygen depletion in marine and brackish environments, this work advances information necessary to estimate effects on marine and in particular brackish ecosystem functions where anoxic conditions prevail.

  • 49.
    Thureborn, Petter
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Franzetti, Andrea
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies. University of Milano-Bicocca, Milano, Italy.
    Lundin, Daniel
    Science for Life Laboratories / Linnéuniversitetet.
    Sjöling, Sara
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology.
    Reconstructing ecosystem functions of the active microbial community of the Baltic Sea oxygen depleted sediments2016In: PeerJ, ISSN 2167-8359, E-ISSN 2167-8359, Vol. 4, e1593Article in journal (Refereed)
    Abstract [en]

    Baltic Sea deep water and sediments hold one of the largest anthropogenically induced hypoxic areas in the world. High nutrient input and low water exchange result in eutrophication and oxygen depletion below the halocline. As a consequence at Landsort Deep, the deepest point of the Baltic Sea, anoxia in the sediments has been a persistent condition over the past decades. Given that microbial communities are drivers of essential ecosystem functions we investigated the microbial community metabolisms and functions of oxygen depleted Landsort Deep sediments by metatranscriptomics. Results show substantial expression of genes involved in protein metabolism demonstrating that the Landsort Deep sediment microbial community is active. Identified expressed gene suites of metabolic pathways with importance for carbon transformation including fermentation, dissimilatory sulphate reduction and methanogenesis were identified. The presence of transcripts for these metabolic processes suggests a potential for heterotrophic-autotrophic community synergism and indicates active mineralisation of the organic matter deposited at the sediment as a consequence of the eutrophication process. Furthermore, cyanobacteria, probably deposited from the water column, are transcriptionally active in the anoxic sediment at this depth. Results also reveal high abundance of transcripts encoding integron integrases. These results provide insight into the activity of the microbial community of the anoxic sediment at the deepest point of the Baltic Sea and its possible role in ecosystem functioning.

  • 50.
    Thureborn, Petter
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Hu, Yue O. O.
    KTH.
    Franzetti, Andrea
    University of Milano-Bicocca, Milano, Italy.
    Sjöling, Sara
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Lundin, Daniel
    Linnaeus University.
    A dark, anoxic mausoleum for DNA: perceived and actual community structure in the Landsort Deep sediment, the Baltic Sea2016In: PeerJ, ISSN 2167-8359, E-ISSN 2167-8359Article in journal (Other academic)
    Abstract [en]

    Numerous investigations of bacterial communities using sequence analysis of environmental DNA have revealed extensive diversity of microbial taxa in an array of different environmental habitats. Community analysis based solely on DNA, however, does not reveal whether the detected community members are actively contributing to community functioning, or whether they are dormant or remnants of dead cells. This dilemma is of particular concern when analyzing microbial community structure of sites with a high degree of deposited matter, such as marine sediments. For example, the Baltic Sea’s deepest point, the Landsort Deep, consists of anoxic sediments with a large deposition of allochthonous organic matter from the highly stratified 460 m water column above. Our previous metagenomics results indicated the presence of potential obligately aerobic and phototrophic microorganisms. To further elucidate which taxa may contribute to ecosystem function at this site, we here present three different datasets – rDNA amplicons, rDNA reads from a shotgun metagenome and expressed rRNA from a shotgun metatranscriptome. By comparing the three datasets and the ratios between rRNA and rDNA we seek to estimate the protein synthesis potential of the community members in order to provide an indication of what taxa may have cellular activity and metabolic potential. The variation in protein synthesis potential was large, both within and between taxa, in the sediment community. Many typically anaerobic taxa, e.g. from Deltaproteobacteria and Euryarchaeota, showed a high protein synthesis potential, while typical aerobes like Flavobacteria showed a low protein synthesis potential. More surprisingly, some common Baltic Sea surface water bacteria also displayed a high protein synthesis potential, suggesting they have an active role in the anoxic sediment ecosystem at 460 m depth. Both filamentous and unicellular Cyanobacteria exhibited very high protein synthesis potential, which implies a more complex role of these bacteria in carbon cycling in the Baltic Sea than previously suggested. Moreover, Mycobacteria, that were abundant in Landsort Deep sediment metagenome compared with other marine sediment metagenomes, showed protein synthesis potentials consistent with a functional role in the sediment community. Our results provide a new window of insight into the complexities of the microbial community of Landsort Deep with implications for the understanding of other anoxic accumulation sediments.

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