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  • 1.
    Ahlström, Ida
    et al.
    Linnéuniversitetet, Universitetsbiblioteket.
    Edvardsson, Robert
    Linnéuniversitetet, Universitetsförvaltningen.
    Rieloff, Mattias
    Linnéuniversitetet, Universitetsbiblioteket.
    Hantering av forskningsdata vid Linnéuniversitetet2018Rapport (Övrigt vetenskapligt)
    Abstract [sv]

    Ett arbete för en övergång till ett öppet vetenskapssystem pågår både nationellt och inom EU. I Sverige är det Vetenskapsrådet som fått i uppdrag att ta fram riktlinjer för hur denna övergång ska genomföras, och målbilden är att ett sådant system ska vara på plats år 2025. Linnéuniversitetet har som myndighet ansvar att stödja sina anställda forskare vad gäller hantering av forskningsdata.

    För att få en bättre förståelse för hur forskningsdata hanteras vid lärosätet skickades en enkät ut till lärosätets forskare av gruppen som genomför en förstudie för inrättande av en Data Access Unit (DAU) vid Linnéuniversitetet. Gruppen består av personal från universitetsarkivet, universitetsbiblioteket, IT-avdelningen och Grants and Innovation Office. DAU kommer att stödja Linnéuniversitetets forskare i fråga om hantering, lagring, tillgängliggörande och bevarande av forskningsdata. Arbetet görs i samarbete med den nationella forsknings-infrastrukturen SND, Svensk Nationell Datatjänst

  • 2. Arneth, A.
    et al.
    Niinemets, Ü.
    Pressley, S.
    Bäck, J.
    Forest Ecology, ETH Zürich, Switzerland.
    Hari, P.
    Karl, T.
    Noe, S.
    Prentice, I. C.
    Serça, D.
    Hickler, T.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen.
    Smith, B.
    Process-based estimates of terrestrial ecosystem isoprene emissions: incorporating the effects of a direct CO2-isoprene interaction2007Ingår i: Atmospheric Chemistry And Physics, ISSN 1680-7316, E-ISSN 1680-7324, Vol. 7, nr 1, s. 31-53Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In recent years evidence has emerged that the amount of isoprene emitted from a leaf is affected by the CO2 growth environment. Many - though not all - laboratory experiments indicate that emissions increase significantly at below-ambient CO2 concentrations and decrease when concentrations are raised to above-ambient. A small number of process-based leaf isoprene emission models can reproduce this CO2 stimulation and inhibition. These models are briefly reviewed, and their performance in standard conditions compared with each other and to an empirical algorithm. One of the models was judged particularly useful for incorporation into a dynamic vegetation model framework, LPJ-GUESS, yielding a tool that allows the interactive effects of climate and increasing CO2 concentration on vegetation distribution, productivity, and leaf and ecosystem isoprene emissions to be explored. The coupled vegetation dynamics-isoprene model is described and used here in a mode particularly suited for the ecosystem scale, but it can be employed at the global level as well. Annual and/or daily isoprene emissions simulated by the model were evaluated against flux measurements ( or model estimates that had previously been evaluated with flux data) from a wide range of environments, and agreement between modelled and simulated values was generally good. By using a dynamic vegetation model, effects of canopy composition, disturbance history, or trends in CO2 concentration can be assessed. We show here for five model test sites that the suggested CO2-inhibition of leaf-isoprene metabolism can be large enough to offset increases in emissions due to CO2-stimulation of vegetation productivity and leaf area growth. When effects of climate change are considered atop the effects of atmospheric composition the interactions between the relevant processes will become even more complex. The CO2-isoprene inhibition may have the potential to significantly dampen the expected steep increase of ecosystem isoprene emission in a future, warmer atmosphere with higher CO2 levels; this effect raises important questions for projections of future atmospheric chemistry, and its connection to the terrestrial vegetation and carbon cycle.

  • 3.
    Bengtsson-Verde, Ulrika
    et al.
    Linnéuniversitetet, Universitetsförvaltningen.
    Carlsson, Lena
    Linnéuniversitetet, Fakultetsnämnden för hälsa, socialt arbete och beteendevetenskap, Institutionen för pedagogik, psykologi och idrottsvetenskap, PPI.
    Gustafsson, Birgitta E.
    Linnéuniversitetet, Fakultetsnämnden för hälsa, socialt arbete och beteendevetenskap, Institutionen för pedagogik, psykologi och idrottsvetenskap, PPI.
    Koblanck, Henriette
    Linnéuniversitetet, Fakultetsnämnden för ekonomi och design, Institutionen för design, DE.
    Lundin, Mattias
    Linnéuniversitetet, Fakultetsnämnden för hälsa, socialt arbete och beteendevetenskap, Institutionen för pedagogik, psykologi och idrottsvetenskap, PPI.
    Mattsson, Tina
    Linnéuniversitetet, Fakultetsnämnden för hälsa, socialt arbete och beteendevetenskap, Institutionen för socialt arbete, SA.
    Montesino, Norma
    Nilsson, Karl-Axel
    Rosenqvist, Johanna
    Linnéuniversitetet, Fakultetsnämnden för humaniora och samhällsvetenskap, Institutionen för kulturvetenskaper, KV.
    En metod för kvalitetssäkring och utvecklinggenom granskning av examensarbeten: avrapportering av pilotprojekt vid Linnéuniversitetet2011Rapport (Övrig (populärvetenskap, debatt, mm))
  • 4.
    Bertrand, Yann
    et al.
    Södertörn university.
    Härlin, Mikael
    Linnéuniversitetet, Universitetsförvaltningen.
    Historicism and essentialism in phylogenetic biologyManuskript (preprint) (Övrigt vetenskapligt)
  • 5.
    Bradshaw, R.H.W.
    et al.
    Dept. of Quaternary Geology, Geol. Surv. of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark .
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen.
    Møller, P.F.
    Long-term succession in a Danish temperate deciduous forest2005Ingår i: Ecography, Vol. 28, nr 2, s. 157-164Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Forest successional trajectories covering the last 2000 yr from a mixed deciduous forest in Denmark show a gradual shift in dominance from Tilia cordata to Fagus sylvatica and a recent increase in total forest basal area since direct management ceased in 1948. The successions are reconstructed by combining a fifty-year record of direct tree observations with local pollen diagrams from Draved Forest, Denmark. Five of the seven successions record a heathland phase of Viking Age dating from 830 AD. The anthropogenic influence is considerable throughout the period of study even though Draved contains some of the most pristine forest stands in Denmark. Anthropogenic influence including felling masks the underlying natural dynamics, with the least disturbed sites showing the smallest compositional change. Some effects of former management, such as loss of Tilia cordata dominance, are irreversible. Artificial disturbance, particularly drainage, has accelerated and amplified the shift towards Fagus dominance that would have occurred on a smaller scale and at a slower rate in the absence of human intervention. Copyright © Ecography 2005.

  • 6.
    Brautaset, Camilla
    et al.
    University of Bergen, Norway.
    Gregersen, MalinLinnéuniversitetet, Fakulteten för konst och humaniora (FKH), Institutionen för kulturvetenskaper (KV). Linnéuniversitetet, Universitetsförvaltningen.Skeie, Karina HestadNLA University College, Norway.
    Møter med Kina: norsk diplomati, næringsliv og misjon 1880-19372018Samlingsverk (redaktörskap) (Refereegranskat)
    Abstract [no]

    Møter med Kina handler om møter mellom mennesker på tvers av geografiske, kulturelle og språklige grenser. Ukjent for de fleste, flyttet en rekke nordmenn til Kina mellom 1890 og 1937. Noen var misjonærer. Andre reiste for å drive handel eller arbeide i det kinesiske tollvesenet. For første gang samles historien til enkeltpersoner fra diplomati, næringsliv og misjon i en felles historie om norsk migrasjon til Kina. Boken formidler historisk analyse i fortellingens form. Her presenteres nye sider av kjente størrelser som general Munthe og misjonæren Marie Monsen. Ikke minst løftes nye og hittil ukjente historier fram. Ingeniør Skappel søkte å skape et globalt finansimperium gjennom en skandinavisk-kinesisk bank. Norges første Kina-misjonær Anna Jakobsen, trosset alt og alle for å gifte seg med Cheng Xiuqui. Gjennom fortellinger om mennesker som levde transnasjonale liv, hendelser som risopprøret i Changsha i 1910 og varer som medisintran, kaster boken nytt lys over hvordan enkeltindivid utnytter teknologiske nyvinninger og transnasjonale handlingsrom i håp om å nå nye mål. Noen lykkes. Andre ender i fallitt. Alle erfarer mer enn de kunne forestille seg. Slik gir boken ny kunnskap ikke bare om norsk migrasjon og norsk-kinesisk historie, men også om globalisering som historisk fenomen.

  • 7.
    Brautaset, Camilla
    et al.
    University of Bergen, Norway.
    Skeie, Karina Hestad
    NLA University College, Norway.
    Gregersen, Malin
    Linnéuniversitetet, Fakulteten för konst och humaniora (FKH), Institutionen för kulturvetenskaper (KV). Linnéuniversitetet, Universitetsförvaltningen.
    Møter med Kina: En introduksjon2018Ingår i: Møter med Kina: Norsk diplomati, næringsliv og misjon 1890-1937 / [ed] Camilla Brautaset, Malin Gregersen, Karina Hestad Skeie, Bergen: Fagbokforlaget, 2018, s. 17-35Kapitel i bok, del av antologi (Refereegranskat)
  • 8.
    Creelman, Alastair
    et al.
    Linnéuniversitetet, Universitetsbiblioteket.
    Löwe, Corina
    Linnéuniversitetet, Fakulteten för konst och humaniora (FKH), Institutionen för språk (SPR).
    Diedrichs, Peter
    Linnéuniversitetet, Universitetsbiblioteket.
    Kulmala, Lena
    Linnéuniversitetet, Universitetsförvaltningen.
    Mainstreaming virtual mobility - helping teachers to get on board2018Ingår i: Telecollaboration and virtual exchange across disciplines : in service of social inclusion and global citizenship: Book of Abstracts, UNIcollaboration , 2018, s. 24-24Konferensbidrag (Refereegranskat)
    Abstract [en]

    Despite many innovative initiatives, virtual mobility is still a relatively unexploited aspect of internationalisation at European universities. An internal project at Linnaeus university, Global Classroom, has aimed to create a framework and organisation to establish international networking and online collaboration as key elements of all degree programmes. The project aimed to promote the concept of virtual mobility and inspire faculty to adopt it in their programmes. A self-evaluation tool was developed for use in workshops with degree programme coordinators. This tool helps them assess their programme’s present status of internationalisation and highlight potential development areas. Each programme team can then, in consultation with the project team, devise and implement an action plan in order to achieve these objectives. The project also developed a toolbox for digital collaboration and worked with other institutions to offer an online collaborative course for teachers in the art of online collaboration. Another important issue was to create incentives for teachers to work with virtual mobility, including the use of digital badges. This session aims to discuss how virtual mobility can be mainstreamed and what types of incentives are needed as a catalyst for development.

  • 9.
    Dagbro, Ola
    et al.
    Linnéuniversitetet, Universitetsförvaltningen. Linnéuniversitetet.
    Torniainen, Petteri
    Department of Forest Products, Swedish University of Agricultural Sciences, Uppsala.
    Karlsson, Olov
    Luleå tekniska universitet, Träteknik.
    Morén, Tom
    Luleå tekniska universitet, Träteknik.
    Colour responses from wood, thermally modified in superheated steam and pressurized steam atmospheres2010Ingår i: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 5, nr 3, s. 211-219Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In this study, two different methods were used to produce thermally modified wood. One was carried out in a typical kiln drying chamber using superheated steam (SS) and the other used pressurized steam in an autoclave cylinder (PS). Overall, both processes followed the same principles and the wood was not treated with any chemicals. Two wood species were studied, Scots pine (Pinus sylvestris) and Norway spruce (Picea abies). Treatments in the autoclave were carried out under pressure using temperatures of 160°C, 170°C and 180°C. Temperatures of 190°C and 212°C were used in treatments in the chamber at normal air pressure. The colour was measured using L*C*H colour space. Results for both species showed that similar L* (lightness) can be reached at lower (20-308C) temperatures using PS compared with SS treatment. The hue angle of PS-treated wood was smaller than that of SS-treated wood. No significant difference in C* (chroma) was detected. The difference in E value between PS- and SS-treated wood was smaller for Norway spruce than for Scots pine. The residual moisture content was about 10% higher in wood treated by the PS process compared with the SS process

  • 10.
    Dagbro, Ola
    et al.
    Linnéuniversitetet, Universitetsförvaltningen. Linnéuniversitetet.
    Torniainen, Petteri
    Luleå tekniska universitet, Träteknik.
    Morén, Tom
    Luleå tekniska universitet, Träteknik.
    Thermal modification of birch using saturated and superheated steam2011Ingår i: Proceedings of the 7th meeting of the Nordic-Baltic Network in Wood Material Science and Engineering (WSE): October 27-28, 2011, Oslo, Norway / [ed] Erik Larnøy; Gry Alfredsen, Ås: Norsk institutt for skog og landskap , 2011, s. 43-48Konferensbidrag (Refereegranskat)
    Abstract [en]

    During the thermal modification, wood is normally exposed to temperatures between 160 - 220°C. As a result physical and chemical changes are taking place and some of the wood properties are changed. Dimensional stability and weather resistance are improved. On the other hand the mechanical strength properties are usually negatively affected by the treatment. The visual appearance is also changed. There were two different types of thermal modification processes used in this study. One of them was using saturated steam and the other one superheated steam. Treatment temperature was 160°C in saturated steam process and 185°C in superheated steam. The wood specie used in this study was Silver birch (Betula pendula). In the chemistry part the acid content was investigated. Despite the 25°C lower treatment temperature, birch modified in saturated steam was more acidic compared to birch modified in superheated steam. Some differences in equilibrium moisture content (EMC) and dimensional stability were found mainly in the environment T=20°C and RH=85%. The colour of birch treated in saturated steam at 160°C was darker than the colour of birch treated in superheated steam at temperature 185°C.

  • 11.
    Dannefjord, Per
    et al.
    Linnéuniversitetet, Fakulteten för samhällsvetenskap (FSV), Institutionen för samhällsstudier (SS).
    Eriksson, Magnus
    Linnéuniversitetet, Universitetsförvaltningen.
    Punk, klass och karriär2013Ingår i: ARKIV. Tidskrift för samhällsanalys, ISSN 2000-6225, E-ISSN 2000-6217, Vol. 1, nr 1, s. 97-113Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [sv]

    Punken, musikstilen och ungdomsrörelsen som bröt fram under andra halvan av 1970-talet, är samtidigt både omskriven och svår att ringa in. Med sin undersökning av vad punken betytt som socialt sammanhang för dem som var med, lägger Per Dannefjord och Magnus Eriksson en pusselbit till vår förståelse av denna ökända ungdomskultur. I artikeln jämför de den sociala bakgrunden och den nuvarande klasspositionen för den första generationens punkare i Sverige, aktiva mellan 1978 och 1982. Tvärtemot vad olyckskorpar under ”punkeran” trodde, visar det sig att punkarna lyckats bättre vad gäller både utbildningsnivå och social position jämfört med sin generation som helhet. Dannefjord och Eriksson ger två förklaringar till framgången: dels att punkens socialt brokiga sammansättning skapade en miljö där nya möjligheter blev synliga för framför allt ungdomar med arbetarbakgrund; dels att punken erbjöd läroprocesser som gav resurser som kunde utnyttjas i yrkes- och utbildningskarriärer inom framför allt kultursektorn.

  • 12. Didion, M.
    et al.
    Kupferschmid, A.D.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. Forest Ecology, Institute of Terrestrial Ecosystems, Department of Environmental Sciences, Swiss Federal Institute of Technology ETH, Universitätstr. 22, CH 8092 Zurich, Switzerland.
    Bugmann, H.
    Ungulate herbivory modifies the effects of climate change on mountain forests2011Ingår i: Climatic Change, ISSN 0165-0009, E-ISSN 1573-1480, Vol. 109, nr 3-4, s. 647-669Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Recent temperature observations suggest a general warming trend that may be causing the range of tree species to shift to higher latitudes and altitudes. Since biotic interactions such as herbivory can change tree species composition, it is important to understand their contribution to vegetation changes triggered by climate change. To investigate the response of forests to climate change and herbivory by wild ungulates, we used the forest gap model ForClim v2. 9. 6 and simulated forest development in three climatically different valleys in the Swiss Alps. We used altitudinal transects on contrasting slopes covering a wide range of forest types from the cold (upper) to the dry (lower) treeline. This allowed us to investigate (1) altitudinal range shifts in response to climate change, (2) the consequences for tree species composition, and (3) the combined effect of climate change and ungulate herbivory. We found that ungulate herbivory changed species composition and that both basal area and stem numbers decreased with increasing herbivory intensity. Tree species responded differently to the change in climate, and their ranges did not change concurrently, thus causing a succession to new stand types. While climate change partially compensated for the reductions in basal area caused by ungulate herbivory, the combined effect of these two agents on the mix of the dominant species and forest type was non-compensatory, as browsing selectively excluded species from establishing or reaching dominance and altered competition patterns, particularly for light. We conclude that there is an urgent need for adaptive forest management strategies that address the joint effects of climate change and ungulate herbivory. 

  • 13.
    Ennals, Richard
    et al.
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Nelson, Björn
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Ingwald, Anders
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Johansson, Viktoria
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för fysik och elektroteknik (IFE).
    Lagercrantz, Victor
    Linnéuniversitetet, Universitetsförvaltningen.
    Coping with social learning: Social and economic change through engagement2018Ingår i: Coping with the future: Rethinking Assumptions for Society Business and Work / [ed] Hans Christian Garmann Johnsen, Halvor Holtskog and Richard Ennals, London & New York: Routledge, 2018, s. 187-200Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 14.
    Gimmi, Urs
    et al.
    Research Unit Landscape Dynamics, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland.
    Poulter, Ben
    Research Unit Landscape Dynamics, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland; Laboratoire des Sciences du Climat et l'Environement (LSCE), Gif sur Yvette, France.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. Forest Ecology, Department of Environmental Sciences, Institute of Terrestrial Ecosystems, Swiss Federal Institute of Technology ETH, .
    Portner, H.
    Forest Ecology, Department of Environmental Sciences, Institute of Terrestrial Ecosystems, Swiss Federal Institute of Technology ETH, .
    Weber, P
    Research Unit Soil Sciences, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland.
    Bürgi, M.
    Research Unit Landscape Dynamics, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland.
    Soil carbon pools in Swiss forests show legacy effects from historic forest litter raking2013Ingår i: Landscape Ecology, ISSN 0921-2973, E-ISSN 1572-9761, Vol. 28, nr 5, s. 835-846Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Globally, forest soils contain twice as much carbon as forest vegetation. Consequently, natural and anthropogenic disturbances affecting carbon accumulation in forest soils can alter regional to global carbon balance. In this study, we evaluate the effects of historic litter raking on soil carbon stocks, a former forest use which used to be widespread throughout Europe for centuries. We estimate, for Switzerland, the carbon sink potential in current forest soils due to recovery from past litter raking ('legacy effect'). The year 1650 was chosen as starting year for litter raking, with three different end years (1875/1925/1960) implemented for this forest use in the biogeochemical model LPJ-GUESS. The model was run for different agricultural and climatic zones separately. Number of cattle, grain production and the area of wet meadow have an impact on the specific demand for forest litter. The demand was consequently calculated based on historical statistical data on these factors. The results show soil carbon pools to be reduced by an average of 17 % after 310 years of litter raking and legacy effects were still visible 130 years after abandonment of this forest use (2 % average reduction). We estimate the remaining carbon sink potential in Swiss forest due to legacy effects from past litter raking to amount to 158,000 tC. Integrating historical data into biogeochemical models provides insight into the relevance of past land-use practices. Our study underlines the importance of considering potentially long-lasting effects of such land use practices for carbon accounting.

  • 15. Gimmi, Urs
    et al.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. Umeå universitet.
    Buergi, Matthias
    Scherstjanoi, Marc
    Bugmann, Harald
    Quantifying disturbance effects on vegetation carbon pools in mountain forests based on historical data2009Ingår i: Regional Environmental Change, ISSN 1436-3798, E-ISSN 1436-378X, Vol. 9, nr 2, s. 121-130Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Although the terrestrial carbon budget is of key importance for atmospheric CO(2) concentrations, little is known on the effects of management and natural disturbances on historical carbon stocks at the regional scale. We reconstruct the dynamics of vegetation carbon stocks and flows in forests across the past 100 years for a valley in the eastern Swiss Prealps using quantitative and qualitative information from forest management plans. The excellent quality of the historical information makes it possible to link dynamics in growing stocks with high-resolution time series for natural and anthropogenic disturbances. The results of the historical reconstruction are compared with modelled potential natural vegetation. Forest carbon stock at the beginning of the twentieth century was substantially reduced compared to natural conditions as a result of large scale clearcutting lasting until the late nineteenth century. Recovery of the forests from this unsustainable exploitation and systematic forest management were the main drivers of a strong carbon accumulation during almost the entire twentieth century. In the 1990s two major storm events and subsequent bark beetle infestations significantly reduced stocks back to the levels of the mid-twentieth century. The future potential for further carbon accumulation was found to be strongly limited, as the potential for further forest expansion in this valley is low and forest properties seem to approach equilibrium with the natural disturbance regime. We conclude that consistent long-term observations of carbon stocks and their changes provide rich information on the historical range of variability of forest ecosystems. Such historical information improves our ability to assess future changes in carbon stocks. Further, the information is vital for better parameterization and initialization of dynamic regional scale vegetation models and it provides important background for appropriate management decisions.

  • 16. Goettel, Holger
    et al.
    Alexander, Jorn
    Keup-Thiel, Elke
    Rechid, Diana
    Hagemann, Stefan
    Blome, Tanja
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen.
    Jacob, Daniela
    Influence of changed vegetations fields on regional climate simulations in the Barents Sea Region2008Ingår i: Climatic Change, ISSN 0165-0009, E-ISSN 1573-1480, Vol. 87, nr 1-2, s. 35-50Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In the context of the EU-Project BALANCE (http://balance-eu.info) the regional climate model REMO was used for extensive calculations of the Barents Sea climate to investigate the vulnerability of this region to climate change. The regional climate model REMO simulated the climate change of the Barents Sea Region between 1961 and 2100 (Control and Climate Change run, CCC-Run). REMO on similar to 50 km horizontal resolution was driven by the transient ECHAM4/OPYC3 IPCC SRES B2 scenario. The output of the CCC-Run was applied to drive the dynamic vegetation model LPJ-GUESS. The results of the vegetation model were used to repeat the CCC-Run with dynamic vegetation fields. The feedback effect of the modified vegetation on the climate change signal is investigated and discussed with focus on precipitation, temperature and snow cover. The effect of the offline coupled vegetation feedback run is much lower than the greenhouse gas effect.

  • 17.
    Gregersen, Malin
    Linnéuniversitetet, Fakulteten för konst och humaniora (FKH), Institutionen för kulturvetenskaper (KV). Linnéuniversitetet, Universitetsförvaltningen.
    "Gjennem de gules land"2018Ingår i: Møter med Kina: Norsk diplomati, næringsliv og misjon 1890-1937 / [ed] Camilla Brautaset, Malin Gregersen, Karina Hestad Skeie, Bergen: Fagbokforlaget, 2018, s. 233-240Kapitel i bok, del av antologi (Refereegranskat)
  • 18.
    Gregersen, Malin
    Linnéuniversitetet, Fakulteten för konst och humaniora (FKH), Institutionen för kulturvetenskaper (KV). Linnéuniversitetet, Universitetsförvaltningen.
    Kinabilder og kinasyn: Fortellinger om Kina i Norge2018Ingår i: Møter med Kina: Norsk diplomati, næringsliv og misjon 1890–1937 / [ed] Camilla Brautaset, Malin Gregersen, Karina Hestad Skeie, Bergen: Fagbokforlaget, 2018, s. 199-209Kapitel i bok, del av antologi (Refereegranskat)
  • 19.
    Gregersen, Malin
    Linnéuniversitetet, Fakulteten för konst och humaniora (FKH), Institutionen för kulturvetenskaper (KV). Linnéuniversitetet, Universitetsförvaltningen.
    Risopprøret i Changsha2018Ingår i: Møter med Kina: Norsk diplomati, næringsliv og misjon 1890-1937 / [ed] Camilla Brautaset, Malin Gregersen, Karina Hestad Skeie, Bergen: Fagbokforlaget, 2018, s. 173-181Kapitel i bok, del av antologi (Refereegranskat)
  • 20. Heiri, C.
    et al.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen.
    Rohrer, L.
    Bugmann, H.
    Forty years of natural dynamics in Swiss beech forests: Structure, composition, and the influence of former management2009Ingår i: Ecological Applications, Vol. 19, nr 7, s. 1920-1934Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We investigated forest development after the cessation of management based on inventory data from six beech forest reserves in Switzerland covering nearly 40 years, using observed changes to assess the textbook understanding of natural beech forest dynamics. Specifically, we evaluated the importance of light as a driver of tree species composition, and we aimed to disentangle the role of site characteristics and past management regimes for shaping today’s forest properties. Forest dynamics in the reserves showed a clear trend toward a broadening of the diameter distribution, an increase in basal area and standing dead wood, an increase in beech dominance, and a reduction of tree species diversity over time, conforming to expectations. However, the expected development of specific structural features, such as significant amounts of large living trees and snags or a small-scale mosaic of various developmental phases, appears to take longer than the time elapsed since the cessation of management. The observed loss in species richness can be attributed to decreasing light availability, as almost all species that disappeared were shade intolerant. Additionally, the shade-intolerant tree species had a characteristic bell-shaped diameter distribution in all reserves, indicating a lack of recruits, whereas shade-tolerant species had an irregular to monotonically decreasing diameter distribution, demonstrating sustained regeneration. Along the environmental gradient covered by the six reserves, abiotic factors are sufficient to explain tree species distribution, with management history not contributing additional information. This suggests that at larger scales, tree species composition is determined by abiotic factors, but historical management strategies were obviously adapted well to the species’ autecological requirements. Analyses such as ours provide the foundation for refining forest management systems as well as for developing effective and target-oriented conservation strategies. © 2009 by the Ecological Society of America beech forests;.

  • 21. Heiri, Caroline
    et al.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. Swiss Fed Inst Technol, Inst Terr Ecosyst, Dept Environm Sci, CH-8092 Zurich, Switzerland.
    Rohrer, Lukas
    Brang, Peter
    Bugmann, Harald
    Successional pathways in Swiss mountain forest reserves2012Ingår i: European Journal of Forest Research, ISSN 1612-4669, E-ISSN 1612-4677, Vol. 131, nr 2, s. 503-518Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Knowledge on the natural dynamics of Norway spruce-European silver fir forests is scarce, but is of high importance for the sustainable management of these ecosystems. Using a unique data set from five forest reserves in the Swiss Alps that covers up to 35 years, we elucidated communalities and differences in stand structure and species composition across the reserves and over time and investigated the role of site conditions versus intrinsic forest dynamics. For the early and late successional phases, we found a clear relationship between stand structure (diameter distributions) and species composition. Two pathways of early succession were evident as a function of the disturbance regime. Thus, the spatial extent of disturbances in spruce-fir forests strongly determines the pathway in early succession. Contrary to earlier descriptions of clearly distinguishable optima phases, our data did not reveal a relationship between stand structure and species composition for the early, mid-, and late optimum phases. Although the reserves investigated here are characterized by highly different climatic and soil conditions, their temporal development was found to fit well into a single successional scheme, suggesting that in spruce-fir mountain forests, the life-history strategies of the tree species may have a stronger influence on successional trajectories than site conditions per se.

  • 22.
    Härlin, Mikael
    Linnéuniversitetet, Universitetsförvaltningen.
    Alfred Russel Wallace: i skuggan av Darwin2015Ingår i: Populär Historia, ISSN 1102-0822, nr 8, s. 54-57Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm))
  • 23.
    Härlin, Mikael
    Linnéuniversitetet, Universitetsförvaltningen.
    Arterna är inte vad de varit2014Ingår i: Forskning & Framsteg, ISSN 0015-7937, nr 5, s. 48-52Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm))
    Abstract [sv]

    När Kristofer Helgen under ett besök på Field museum i Chicago drog ut en låda med vad han trodde var en samling kända tvättbjörnsarter blev han rejält överraskad.

    – Jag tittade på pälsen, skallen, tänderna, hörselbenen. Inget i anatomin liknade något jag sett tidigare, säger Kristofer Helgen, som är zoolog vid Smithsonian museum i USA.

    Det starkt rödfärgade skinnen han såg ledde till beskrivningen av en ny köttätande däggdjursart.

  • 24.
    Härlin, Mikael
    Linnéuniversitetet, Universitetsförvaltningen.
    Den mänskliga naturen?2014Ingår i: Sans, ISSN 2000-9690, nr 2, s. 82-85Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm))
  • 25.
    Härlin, Mikael
    Linnéuniversitetet, Universitetsförvaltningen.
    Forskare känner inte igen betydelsefull vetenskap2014Ingår i: Universitetsläraren, ISSN 0282-4973, nr 1, s. 16-17Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm))
    Abstract [sv]

    Forskare och forskning bedöms hela tiden. Det kan handla om huruvida en artikel ska bli publicerad i en viss tidskrift eller om en forskare ska tilldelas anslag eller inte. Ofta är det forskare som bedömer kollegor, så kallad peer-review. Forskning som nyligen publicerades i den nät­baserade vetenskapliga tidskriften PLOS Biology visar, dessvärre, att forskare är ganska dåliga på att ­bedöma vad som är betydelsefull forskning.

  • 26.
    Härlin, Mikael
    Linnéuniversitetet, Universitetsförvaltningen.
    Lite till många eller mycket till få?: Om svårigheten - eller snarare omöjligheten - att känna igen betydelsefull forskning2015Ingår i: Tänka vidare: Forskning, finansiering, framtid. Riksbankens Jubileumsfonds Årsbok 2015/16 / [ed] Jenny Björkman, Björn Fjaestad, Stockholm: Makadam Förlag , 2015, s. 171-176Kapitel i bok, del av antologi (Övrig (populärvetenskap, debatt, mm))
  • 27.
    Höglund, Johan
    et al.
    Linnéuniversitetet, Fakulteten för konst och humaniora (FKH), Institutionen för språk (SPR).
    Willander, Martin
    Linnéuniversitetet, Universitetsförvaltningen.
    Black Hawk-Down: Adaptation and the Military-Entertainment Complex2017Ingår i: Culture Unbound. Journal of Current Cultural Research, ISSN 2000-1525, E-ISSN 2000-1525, Vol. 9, nr 3, s. 365-389Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This article investigates the non-fiction book Black Hawk Down (1999) by Mark Bowden, Black Hawk Down the movie (2001) directed by Ridley Scott, and the computer game Delta Force: Black Hawk Down (2003). The article suggests that while the movie and the game must be studied as adaptations of the first text, the tools developed by adaptation studies, and that are typically used to study the transfer of narratives from one media form to another, do not suffice to fully describe the ways in which these narratives change between iterations. To provide a more complete account of these adaptations, the article therefore also considers the shifting political climate of the 9/11 era, the expectations from different audiences and industries, and, in particular, the role that what James Der Derian has termed the Military-Industrial-Media-Entertainment Network (MIME-Net) plays in the production of narrative. The article thus investigates how a specific political climate and MIME-Net help to produce certain adaptations. Based on this investigation, the article argues that MIME-Net plays a very important role in the adaptation of the Black Hawk Down story by directing attention away from historical specificity and nuance, towards the spectacle of war. Thus, in Black Hawk Down the movie and in Delta Force: Black Hawk Down, authenticity is understood as residing in the spectacular rendering of carnage rather than in historical facts. The article concludes that scholarly investigations of the adaptation of military narratives should combine traditional adaptation studies tools with theory and method that highlight the role that politics and complexes such as MIME-Net play within the culture industry.

  • 28.
    Jansson, Bertil
    Linnéuniversitetet, Universitetsförvaltningen.
    Bibliotekarien i förindustriell tid och framtidens bibliotekarie, har de något gemensamt?2006Konferensbidrag (Övrigt vetenskapligt)
  • 29.
    Jansson, Bertil
    Linnéuniversitetet, Universitetsförvaltningen. Högskolan i Borås.
    Bibliotekarien: om yrkets tidiga innehåll och utveckling2010Doktorsavhandling, monografi (Övrigt vetenskapligt)
  • 30.
    Jansson, Bertil
    Linnéuniversitetet, Universitetsförvaltningen.
    When did the librarian become a librarian?2013Ingår i: Cahiers de la Documentation, ISSN 0007-9804, nr 3, s. 5-11Artikel i tidskrift (Övrigt vetenskapligt)
  • 31.
    Leuzinger, S
    et al.
    School of Applied Sciences, Auckland University of Technology, Auckland, 1142, New Zealand .
    Manusch, C
    Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zurich, Forest Ecology, Universitätstrasse 16, Zurich, 8092, Switzerland .
    Bugmann, H
    Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zurich, Forest Ecology, Universitätstrasse 16, Zurich, 8092, Switzerland .
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen.
    A sink-limited growth model improves biomass estimation along boreal and alpine tree lines2013Ingår i: Global Ecology and Biogeography, ISSN 1466-822X, E-ISSN 1466-8238, Vol. 22, nr 8, s. 924-932Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aim: Despite increasing evidence for plant growth often being limited by sink (meristem) activity rather than source (photosynthesis) activity, all currently available dynamic global vegetation models (DGVMs) simulate plant growth via source-limited processes. For a given climatic region, this may lead to an overestimation of carbon stock per unit surface area, particularly if a model fails to correctly predict forest cover. Our aim is to improve the Lund-Potsdam-Jena (LPJ) DGVM by replacing the source-limited (SoL) tree growth algorithm by a sink-limited (SiL) one. Location: Our analysis focuses on the cold tree line at high latitudes and altitudes. We study two altitudinal transects in the Swiss Alps and the northern tree line. Methods: We limit annual net primary productivity of the LPJ DGVM by an algorithm based on the annual sum of growing degree-days (GDD), assuming that maximum plant growth is reached asymptotically with increasing GDD. Results: Comparing simulation results with observational data, we show that the locations of both the northern and the alpine tree line are estimated more accurately when using a SiL algorithm than when using the commonly employed SoL algorithm. Also, simulated carbon stocks decrease in a more realistic manner towards the tree line when the SiL algorithm is used. This has far-reaching implications for estimating and projecting present and future carbon stocks in temperature-limited ecosystems. Main conclusions: In the range of 60-80°N over Europe and Asia, carbon stored in vegetation is estimated to be c. 50% higher in the LPJ standard version (LPJ-SoL) compared with LPJ-SiL, resulting in a global difference in estimated biomass of 25 Pg (c. 5% of the global terrestrial standing biomass). Similarly, the simulated elevation of the upper tree line in the European Alps differs by c. 400m between the two model versions, thus implying an additional overestimation of carbon stored in mountain forests around the world.

  • 32. Leuzinger, Sebastian
    et al.
    Bigler, Christof
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen.
    Koerner, Christian
    Poor methodology for predicting large-scale tree die-off2009Ingår i: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 106, nr 38Artikel i tidskrift (Refereegranskat)
  • 33.
    Ling, Hu
    Linnéuniversitetet, Universitetsförvaltningen. Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för organisation och entreprenörskap (OE).
    Environmental values as a motivation of cycle tourism2018Självständigt arbete på avancerad nivå (magisterexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [en]

    The increasing popularity of cycling activities and events, and the need to encourage cycling to reduce tourism greenhouse gas (GHG) emission, require a better understanding of the motivations of cycle tourists. Cycle tourism is one kind of green sustainable tourism. While numbers of aspects of cycle tourism have been identified in previous studies, environmental values might be one of the factors to determine cycle tourism choice. Most findings show that personal factors are the main reason of cycling activity while environmental values play merely little role in the cycle tourism. This thesis project is aimed to study the motivations of non-club recreational cycle tourists in Kalmar, Sweden and the role of environmental values as a motivation of cycle tourism behavior. Qualitative exploration method has been adopted and 13 local cycle tourists have been interviewed for the project. By applying the environmental values framework, this thesis links two main factors of environmental values to the cycle tourism behavior, that is closeness to nature and environmental concern. The findings show that environmental values are good predictor of cycle tourism behavior. The role of environmental values as a motivation of cycle tourism is improving though still not the main motivation. More explicit attention to environmental related knowledge education may inform the operationalization and promotion of local cycle tourism development. As modern people may attach importance to hedonic experience for their cycle tourism activities, further researches are needed to understand the relationship of hedonic consumption values and cycle tourism behaviors.

    Keywords: cycling tourism; motivation; qualitative; environmental values; closeness to nature; environmental concern

  • 34.
    Manusch, C
    et al.
    ETH, Dept Environm Syst Sci, Inst Terr Ecosyst, CH-8092 Zurich, Switzerland.
    Bugmann, H
    ETH, Dept Environm Syst Sci, Inst Terr Ecosyst, CH-8092 Zurich, Switzerland.
    Heiri, C
    Swiss Fed Inst Forest Snow & Landscape Res, CH-8903 Birmensdorf, Switzerland.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. ETH, Dept Environm Syst Sci, Inst Terr Ecosyst, CH-8092 Zurich, Switzerland.
    Tree mortality in dynamic vegetation models - A key feature for accurately simulating forest properties2012Ingår i: Ecological Modelling, ISSN 0304-3800, E-ISSN 1872-7026, Vol. 243, s. 101-111Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Dynamic vegetation models are important tools in ecological research, but not all processes of vegetation dynamics are captured adequately. Tree mortality is often modeled as a function of growth efficiency and maximum age. However, empirical studies have shown for different species that slow-growing trees may become older than fast-growing trees, implying a correlation of mortality with growth rate and size rather than age. We used the ecosystem model LPJ-GUESS to compare the standard age-dependent mortality with two size-dependent mortality approaches. We found that all mortality approaches, when calibrated, yield a realistic pattern of growing stock and Plant Functional Type (PFT) distribution at five study sites in Switzerland. However, only the size-dependent approaches match a third pattern, i.e. the observed negative relationship between growth rate and longevity. As a consequence, trees are simulated to get older at higher than at lower altitudes/latitudes. In contrast, maximum tree ages do not change along these climatic gradients when the standard age-dependent mortality is used. As tree age and size determine forest structure, our more realistic mortality assumptions improved forest biomass estimation, but indicate a potential decline of carbon storage under climate change. We conclude that tree mortality should be modeled as a function of size rather than age. (C) 2012 Elsevier B.V. All rights reserved.

  • 35.
    Manusch, Corina
    et al.
    ETH, Dept Environm Syst Sci, Inst Terr Ecosyst, CH-8092 Zurich, Switzerland.
    Bugmann, Harald
    ETH, Dept Environm Syst Sci, Inst Terr Ecosyst, CH-8092 Zurich, Switzerland.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. ETH, Dept Environm Syst Sci, Inst Terr Ecosyst, CH-8092 Zurich, Switzerland.
    Sensitivity of simulated productivity to soil characteristics and plant water uptake along drought gradients in the Swiss Alps2014Ingår i: Ecological Modelling, Vol. 282, s. 25-34Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Future climate scenarios indicate a change in precipitation patterns, i.e. in frequency and intensity, and thus a change of water availability for plants. The consequences for ecosystems can be evaluated using dynamic vegetation models (DVMs), but the description of soil properties and assumptions about root distribution and functionality are rather simplistic in many DVMs. We use the LPJ-GUESS model to evaluate (i) the usage of high-quality data sources for describing soil properties and (ii) the assumptions regarding roots. Specifically, we compare simulated carbon uptake when applying the frequently used FAO global soil map vs. soil measurements from 98 sites in the driest regions of Switzerland. The multilayer soil data were used either as observed (non-aggregated) or aggregated into two layers. At sites with low water holding capacities (whc < 100 mm) and a low precipitation sum that does not compensate for small whc, the FAO data led to a higher annual net primary productivity (ANPP) than when using observed soil data. In contrast under wetter conditions, the description of soil data did not make much difference. A comparison of different rooting strategies revealed a higher importance of vertical root distribution per soil layer than variable rooting depths due to the overriding effect of the hydrological assumptions in the model. We conclude that it is pivotal to use high-quality soil data and possibly to refine the hydrological assumptions in DVMs when attempting to study drought impacts on ecosystems.

  • 36.
    Manusch, Corina
    et al.
    Department of Environmental Systems Science, Forest Ecology, Institute of Terrestrial Ecosystems, ETH Zurich, Universitätstr. 22, 8092 Zurich, Switzerland.
    Bugmann, Harald
    Department of Environmental Systems Science, Forest Ecology, Institute of Terrestrial Ecosystems, ETH Zurich, Universitätstr. 22, 8092 Zurich, Switzerland.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. Department of Environmental Systems Science, Forest Ecology, Institute of Terrestrial Ecosystems, ETH Zurich, Universitätstr. 22, 8092 Zurich, Switzerland.
    The impact of climate change and its uncertainty on carbon storage in Switzerland2014Ingår i: Regional Environmental Change, ISSN 1436-3798, E-ISSN 1436-378X, Vol. 14, nr 4, s. 1437-1450Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Projected future climate change will alter carbon storage in forests, which is of pivotal importance for the national carbon balance of most countries. Yet, national-scale assessments are largely lacking. We evaluated climate impacts on vegetation and soil carbon storage for Swiss forests using a dynamic vegetation model. We considered three novel climate scenarios, each featuring a quantification of the inherent uncertainty of the underlying climate models. We evaluated which regions of Switzerland would benefit or lose in terms of carbon storage under different climates, and which abiotic factors determine these patterns. The simulation results showed that the prospective carbon storage ability of forests depends on the current climate, the severity of the change, and the time required for new species to establish. Regions already prone to drought and heat waves under current climate will likely experience a decrease in carbon stocks under prospective 'extreme' climate change, while carbon storage in forests close to the upper treeline will increase markedly. Interestingly, when climate change is severe, species shifts can result in increases in carbon stocks, but when there is only slight climate change, climate conditions may reduce growth of extant species while not allowing for species shifts, thus leading to decreases in carbon stocks.

  • 37. Matthes, Heidrun
    et al.
    Rinke, Annette
    Miller, Paul A.
    Kuhry, Peter
    Dethloff, Klaus
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. nstitute of Terrestrial Ecosystems, ETH Zürich, Zürich, Switzerland.
    Sensitivity of high-resolution Arctic regional climate model projections to different implementations of land surface processes2012Ingår i: Climatic Change, ISSN 0165-0009, E-ISSN 1573-1480, Vol. 111, nr 2, s. 197-214Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper discusses the effects of vegetation cover and soil parameters on the climate change projections of a regional climate model over the Arctic domain. Different setups of the land surface model of the regional climate model HIRHAM were realized to analyze differences in the atmospheric circulation caused by (1) the incorporation of freezing/thawing of soil moisture, (2) the consideration of top organic soil horizons typical for the Arctic and (3) a vegetation shift due to a changing climate. The largest direct thermal effect in 2 m air temperature was found for the vegetation shift, which ranged between -1.5 K and 3 K. The inclusion of a freeze/thaw scheme for soil moisture shows equally large sensitivities in spring over cool areas with high soil moisture content. Although the sensitivity signal in 2 m air temperature for the experiments differs in amplitude, all experiments show changes in mean sea level pressure (mslp) and geopotential height (z) throughout the troposphere of similar magnitude (mslp: -2 hPa to 1.5 hPa, z: -15 gpm to 5 gpm). This points to the importance of dynamical feedbacks within the atmosphere-land system. Land and soil processes have a distinct remote influence on large scale atmospheric circulation patterns in addition to their direct, regional effects. The assessment of induced uncertainties due to the changed implementations of land surface processes discussed in this study demonstrates the need to take all those processes for future Arctic climate projections into account, and demonstrates a clear need to include similar implementations in regional and global climate models.

  • 38.
    Palm, Alexander
    et al.
    Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för ekonomistyrning och logistik (ELO).
    Sjögren, Adam
    Linnéuniversitetet, Universitetsförvaltningen. Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för ekonomistyrning och logistik (ELO).
    Aktierekommendationer i en ny tid: Podcasts på den finansiella marknaden2016Självständigt arbete på avancerad nivå (magisterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Sammanfattning

    Magisteruppsats för Civilekonomexamen i företagsekonomi, Ekonomihögskolan vid Linnéuniversitetet, Växjö, 2016.

     

    Författare

    Alexander Palm & Adam Sjögren

     

    Handledare

    Christopher Von Koch & Katarina Eriksson

     

    Examinator:

    Sven-Olof Yrjö Collin

     

    Titel:

    ”Aktierekommendationer i en ny tid – podcasts på den finansiella marknaden”

     

    Bakgrund & problem:

    Aktierekommendationer ges traditionellt ut av diverse banker och analyshus. En bias har observerats vilket är till nackdel för investerare. Podcasts är ett förhållandevis nytt fenomen som kan erbjuda aktierekommendationer. Eftersom denna form av media är ny, finns lite forskning kring dess roll och potential för att erbjuda finansiella råd.

     

    Syfte:

    Uppsatsens syfte är att utvidga forskning kring podcasts och dess roll för marknadsfunktionen och marknadseffektiviteten

     

    Metod:

    En deduktiv utgångspunkt och ett kvantitativt förhållningssätt mellan teori och forskning tillämpas. En traditionell eventstudie med två olika tidsspann tillämpas för att studera aktierekommendationers påverkan på aktiekurser.

     

    Slutsats:

    Resultat pekar på att IH inte har stöd vid aktierekommendationer från podcasts vilket är ett tecken på stöd för EMH. Däremot har PPH stöd vilket i sin tur pekar på brister i EMH. Således är det ett tecken på att den svenska aktiemarknaden inte är fullt effektiv och den besitter inte semi-stark form. Inget informationsläckage kunde observeras i samband med rekommendationerna, något som skiljer sig från traditionella källor. Vi kunde visa på en viss temporär och positiv effekt gällande marknadsfunktionen för Small Cap. Genom en observerad ökad handelsvolym påvisar vi övertro på den svenska aktiemarknaden, något som gäller även för traditionella aktierekommendationer. Vi kan inte statistiskt säkerställa att kunskaps sprids mellan podcastlyssnare vilket skiljer sig mot teorier och tidigare forskning.

     

  • 39. Pappas, C.
    et al.
    Fatichi, S.
    Leuzinger, S.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. ETH, Inst Terr Ecosyst, CH-8092 Zurich, Switzerland.
    Burlando, P.
    Sensitivity analysis of a process-based ecosystem model: Pinpointing parameterization and structural issues2013Ingår i: Journal of Geophysical Research - Biogeosciences, ISSN 2169-8953, E-ISSN 2169-8961, Vol. 118, nr 2, s. 505-528Artikel i tidskrift (Refereegranskat)
  • 40. Portner, H.
    et al.
    Bugmann, H.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. Forest Ecology, Institute of Terrestrial Ecosystems, Department of Environmental Sciences, ETH Zürich, 8092 Zürich, Switzerland.
    Temperature response functions introduce high uncertainty in modelled carbon stocks in cold temperature regimes2010Ingår i: Biogeosciences, ISSN 1726-4170, E-ISSN 1726-4189, Vol. 7, nr 11, s. 3669-3684Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Models of carbon cycling in terrestrial ecosystems contain formulations for the dependence of respiration on temperature, but the sensitivity of predicted carbon pools and fluxes to these formulations and their parameterization is not well understood. Thus, we performed an uncertainty analysis of soil organic matter decomposition with respect to its temperature dependency using the ecosystem model LPJ-GUESS. <br><br> We used five temperature response functions (Exponential, Arrhenius, Lloyd-Taylor, Gaussian, Van’t Hoff). We determined the parameter confidence ranges of the formulations by nonlinear regression analysis based on eight experimental datasets from Northern Hemisphere ecosystems. We sampled over the confidence ranges of the parameters and ran simulations for each pair of temperature response function and calibration site. We analyzed both the long-term and the short-term heterotrophic soil carbon dynamics over a virtual elevation gradient in southern Switzerland. <br><br> The temperature relationship of Lloyd-Taylor fitted the overall data set best as the other functions either resulted in poor fits (Exponential, Arrhenius) or were not applicable for all datasets (Gaussian, Van’t Hoff). There were two main sources of uncertainty for model simulations: (1) the lack of confidence in the parameter estimates of the temperature response, which increased with increasing temperature, and (2) the size of the simulated soil carbon pools, which increased with elevation, as slower turn-over times lead to higher carbon stocks and higher associated uncertainties. Our results therefore indicate that such projections are more uncertain for higher elevations and hence also higher latitudes, which are of key importance for the global terrestrial carbon budget. 

  • 41.
    Reyer, C.P.O.
    et al.
    Potsdam Inst Climate Impact Res, D-14412 Potsdam, Germany.
    Leuzinger, S
    Auckland Univ Technol, Sch Appl Sci, Auckland 1142, New Zealand; ETH, Inst Terr Ecosyst ITES, CH-8092 Zurich, Switzerland; Univ Basel, Inst Bot, CH-4056 Basel, Switzerland.
    Rammig, A
    Potsdam Inst Climate Impact Res, D-14412 Potsdam, Germany.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. ETH, Inst Terr Ecosyst ITES, CH-8092 Zurich, Switzerland.
    Bartholomeus, R.P.
    KWR Watercycle Res Inst, NL-3430 BB Nieuwegein, Netherlands.
    Bonfante, A.
    Natl Res Council Italy, Inst Mediterranean Agr & Forest Syst CNR ISAFoM, I-80056 Ercolano, NA, Italy.
    de Lorenzi, F
    Natl Res Council Italy, Inst Mediterranean Agr & Forest Syst CNR ISAFoM, I-80056 Ercolano, NA, Italy.
    Dury, M.
    Univ Liege, Unite Modelisat Climat & Cycles Biogeochim, B-4000 Liege, Belgium.
    Gloning, P.
    Tech Univ Munich, Chair Ecoclimatol, D-85354 Freising Weihenstephan, Germany.
    Abou Jaoude, R.
    Univ Tuscia, Dept Innovat Biol Agrofood & Forest Syst DIBAF, I-01100 Viterbo, Italy.
    Klein, T
    Weizmann Inst Sci, Dept Environm Sci & Energy Res, IL-76100 Rehovot, Israel.
    Kuster, T.M.
    ETH, Inst Terr Ecosyst ITES, CH-8092 Zurich, Switzerland; Swiss Fed Res Inst WSL, CH-8903 Birmensdorf, Switzerland.
    Martins, M.
    Univ Lisbon, Inst Geog & Spatial Planning IGOT, P-1600214 Lisbon, Portugal.
    Niedrist, G.
    European Acad Bolzano Bozen, Inst Alpine Environm, I-39100 Bolzano, Italy; Univ Innsbruck, Inst Ecol, A-6020 Innsbruck, Austria.
    Riccardi, M.
    Natl Res Council Italy, Inst Mediterranean Agr & Forest Syst CNR ISAFoM, I-80056 Ercolano, NA, Italy.
    Wohlfahrt, G
    Univ Innsbruck, Inst Ecol, A-6020 Innsbruck, Austria.
    de Angelis, P.
    Univ Tuscia, Dept Innovat Biol Agrofood & Forest Syst DIBAF, I-01100 Viterbo, Italy.
    Francois, F.
    Univ Liege, Unite Modelisat Climat & Cycles Biogeochim, B-4000 Liege, Belgium.
    Menzel, A.
    Tech Univ Munich, Chair Ecoclimatol, D-85354 Freising Weihenstephan, Germany.
    Pereira, M
    Univ Evora, Dept Landscape Environm & Planning, P-7000671 Evora, Portugal.
    A plant's perspective of extremes: terrestrial plant responses to changing climatic variability2013Ingår i: Global Change Biology, ISSN 1354-1013, E-ISSN 1365-2486, Vol. 19, nr 1, s. 75-89Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We review observational, experimental, and model results on how plants respond to extreme climatic conditions induced by changing climatic variability. Distinguishing between impacts of changing mean climatic conditions and changing climatic variability on terrestrial ecosystems is generally underrated in current studies. The goals of our review are thus (1) to identify plant processes that are vulnerable to changes in the variability of climatic variables rather than to changes in their mean, and (2) to depict/evaluate available study designs to quantify responses of plants to changing climatic variability. We find that phenology is largely affected by changing mean climate but also that impacts of climatic variability are much less studied, although potentially damaging. We note that plant water relations seem to be very vulnerable to extremes driven by changes in temperature and precipitation and that heatwaves and flooding have stronger impacts on physiological processes than changing mean climate. Moreover, interacting phenological and physiological processes are likely to further complicate plant responses to changing climatic variability. Phenological and physiological processes and their interactions culminate in even more sophisticated responses to changing mean climate and climatic variability at the species and community level. Generally, observational studies are well suited to study plant responses to changing mean climate, but less suitable to gain a mechanistic understanding of plant responses to climatic variability. Experiments seem best suited to simulate extreme events. In models, temporal resolution and model structure are crucial to capture plant responses to changing climatic variability. We highlight that a combination of experimental, observational, and/or modeling studies have the potential to overcome important caveats of the respective individual approaches.

  • 42. Rice, Stephen
    et al.
    Stoffel, Markus
    Turowski, Jens M
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. Swiss Fed Inst Technol, Inst Terr Ecosyst, Dept Environm Sci, CH-8092 Zurich, Switzerland.
    Disturbance regimes at the interface of geomorphology and ecology2012Ingår i: Earth Surface Processes and Landforms, ISSN 0197-9337, E-ISSN 1096-9837, Vol. 37, nr 15, s. 1678-1682Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Geomorphological processes are an integral part of ecosystem functioning and ecosystem functioning affects geomorphological processes. Increasingly widespread acknowledgement of this simple idea is manifest in a vigorous research community engaged with questions that address the two-way interaction between biota and geomorphology, at a range of scales and in a variety of terrestrial and aquatic environments. Geomorphological disturbances are a core element of biogeomorphological interest, and although the disciplines of geomorphology and ecology have each developed languages and theories that help to explore, model and understand disturbance events, little attempt has been made to draw together these approaches. Following a brief review of these issues, we introduce thirteen papers that investigate the interactions and feedbacks between geomorphological disturbance regimes and ecosystem functions. These papers reveal the singularity of wildfire impacts, the importance of landsliding for carbon budgeting and of vegetation accumulation for landsliding, the zoogeomorphic role of iconic and Cinderella animals in fluvial geomorphology, biophysical interactions in aeolian, fluvial and torrential environments and the utility of living ecosystems as archives of geomorphic events. Most of these papers were first presented in a conference session at the European Geoscience Union General Assembly in 2010 and several others are from recent volumes of Earth Surface Processes and Landforms.

  • 43. Roderfeld, Hedwig
    et al.
    Blyth, Eleanor
    Dankers, Rutger
    Huse, Geir
    Slagstad, Dag
    Ellingsen, Ingrid
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen.
    Lange, Manfred A.
    Potential impact of climate change on ecosystems of the Barents Sea Region2008Ingår i: Climatic Change, ISSN 0165-0009, E-ISSN 1573-1480, Vol. 87, nr 1-2, s. 283-303Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The EU project BALANCE (Global Change Vulnerabilities in the Barents region: Linking Arctic Natural Resources, Climate Change and Economies) aims to assess vulnerability to climate change in the Barents Sea Region. As a prerequisite the potential impact of climate change on selected ecosystems of the study area has to be quantified, which is the subject of the present paper. A set of ecosystem models was run to generate baseline and future scenarios for 1990, 2020, 2050 and 2080. The models are based on data from the Regional Climate Model (REMO), driven by a GCM which in turn is forced by the IPCC-B2 scenario. The climate change is documented by means of the Koppen climate classification. Since the multitude of models requires the effect of climate change on individual terrestrial and marine systems to be integrated, the paper concentrates on a standardised visualisation of potential impacts by use of a Geographical Information System for the timeslices 2050 and 2080. The resulting maps show that both terrestrial and marine ecosystems of the Barents region will undergo significant changes until both 2050 and 2080.

  • 44. Sitch, Sitch
    et al.
    Mcguire, David A.
    Kimball, John
    Gedney, Nicola
    Gamon, John
    Engström, Ryan
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. Abisko Sci Res Stn, S-98107 Abisko, Sweden; Ecosystem Analysis, Lund University, 22362 Lund, Sweden.
    Zhuang, Qianlai
    Clein, Joy
    McDonald, Kyle C.
    Assessing the carbon balance of circumpolar Arctic tundra using remote sensing and process modeling2007Ingår i: Ecological Applications, ISSN 1051-0761, E-ISSN 1939-5582, Vol. 17, nr 1, s. 213-234Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper reviews the current status of using remote sensing and process-based modeling approaches to assess the contemporary and future circumpolar carbon balance of Arctic tundra, including the exchange of both carbon dioxide and methane with the atmosphere. Analyses based on remote sensing approaches that use a 20-year data record of satellite data indicate that tundra is greening in the Arctic, suggesting an increase in photosynthetic activity and net primary production. Modeling studies generally simulate a small net carbon sink for the distribution of Arctic tundra, a result that is within the uncertainty range of field-based estimates of net carbon exchange. Applications of processbased approaches for scenarios of future climate change generally indicate net carbon sequestration in Arctic tundra as enhanced vegetation production exceeds simulated increases in decomposition. However, methane emissions are likely to increase dramatically, in response to rising soil temperatures, over the next century. Key uncertainties in the response of Arctic ecosystems to climate change include uncertainties in future fire regimes and uncertainties relating to changes in the soil environment. These include the response of soil decomposition and respiration to warming and deepening of the soil active layer, uncertainties in precipitation and potential soil drying, and distribution of wetlands. While there are numerous uncertainties in the projections of process-based models, they generally indicate that Arctic tundra will be a small sink for carbon over the next century and that methane emissions will increase considerably, which implies that exchange of greenhouse gases between the atmosphere and Arctic tundra ecosystems is likely to contribute to climate warming.

  • 45.
    Skeie, Karina Hestad
    et al.
    NLA University College.
    Gregersen, Malin
    Linnéuniversitetet, Fakulteten för konst och humaniora (FKH), Institutionen för kulturvetenskaper (KV). Linnéuniversitetet, Universitetsförvaltningen.
    Okkenhaug, Inger Marie
    Volda University College, Norway.
    Kina for Kristus: Misjon og kristendom i Kina2018Ingår i: Møter med Kina: Norsk dipomati, næringsliv og misjon 1890-1937 / [ed] Camilla Brautaset, Malin Gregersen, Karina Hestad Skeie, Bergen: Fagbokforlaget, 2018, s. 143-158Kapitel i bok, del av antologi (Refereegranskat)
  • 46.
    Stigmar, Martin
    Linnéuniversitetet, Universitetsförvaltningen.
    Peer-to-peer Teaching in Higher Education: A Critical Literature Review2016Ingår i: Mentoring & Tutoring, ISSN 1361-1267, E-ISSN 1469-9745, Vol. 24, nr 2, s. 124-136Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of my critical literature review is to identify studies where students are engaged as partners in teaching in higher education and to analyze how tutors and tutees benefit from peer teaching. Thirty studies were included for review. Thirteen countries are represented and two thirds of the studies conducted in the United States of America or the United Kingdom. There is a significant representation of studies from natural- and physical science. The dominating pedagogical belief and theory is social constructivism. The most frequent study design is the use of quasi-experimental pre- and post-testing. University teachers do not comprise the view of peer teaching necessarily resulting in greater academic achievement gains or deep learning. University teachers identify and esteem other pedagogical benefits such as improving students’: critical thinking, learning autonomy, motivation, collaborative and communicative skills. The main finding of this review is the clarification that the training of generic skills benefits from peer teaching. © 2016 Informa UK Limited, trading as Taylor & Francis Group.

  • 47.
    Torniainen, Petteri
    et al.
    Luleå University of Technology, Sweden.
    Elustondo, Diego
    Luleå University of Technology, Sweden.
    Dagbro, Ola
    Linnéuniversitetet, Universitetsförvaltningen.
    Industrial Validation of the Relationship between Color Parameters in Thermally Modified Spruce and Pine2016Ingår i: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 11, nr 1, s. 1369-1381Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Thermal modification causes the darkening of wood throughout its cross-section because of chemical changes in the wood. After treatment, naturally light wood species look darker or even tropical, depending predominantly on the treatment temperature and processing time. This study investigates the suitability of using color measurement to determine treatment intensity at the industrial scale. The color was determined using the L*, a*, and b* color space, also referred to as CIELab, and the relationship between lightness (L*) and the color parameters (a*) and (b*) was investigated for thermal modification treatments at 190 and 212 °C. The wood species studied were pine (Pinus sylvestris L.) and spruce (Picea abies L.). The results showed that yellowness (+b*) and redness (+a*) had a significant prediction ability for class treatments at 190 and 212 °C, respectively. After treatment, there were no noticeable differences in color between the species, but sapwood was darker than heartwood in both untreated and thermally modified wood. The thickness of the boards had a proportionally darkening effect on the color values.

  • 48. Turesson, H.
    et al.
    Brönmark, C.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. Umeå universitet.
    Satiation effects in piscivore prey size selection2006Ingår i: Ecology of Freshwater Fish, Vol. 15, nr 1, s. 78-85Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We present a functional response model that primarily evaluates effects of satiation in piscivore prey-size selection. The model also includes other passive processes, such as prey-size-dependent encounter rate and prey-size-dependent capture success, where capture success decreases and encounter rate increases with prey size. The model generates a wide variety of outcomes, where small, intermediate or large prey is positively selected for. These very different selectivity patterns are generated without any active prey choice included in the model. The results stress the importance of controlling for satiation and other passive processes in empirical studies on prey-size selection, especially if the aim is to test active prey choice in piscivores. © 2005 The Authors Journal compilation 2005 Blackwell Munksgaard.

  • 49.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. ETH, ETH Zentrum, CHN, CH-8092 Zurich, Switzerland.
    Determining the rate of change in a mixed deciduous forest monitored for 50 years2011Ingår i: Annals of Forest Science, ISSN 1286-4560, E-ISSN 1297-966X, Vol. 68, nr 3, s. 485-495Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Trees in two compartments of the mixed deciduous forest Draved Forest have been monitored regularly for 50 years. This data set was used to study the rate of change in forest structure and composition applying the Kolmogorov-Smirnov statistics, chi-square test for the goodness of fit, and principal component analysis. We also correlated the specific test statistics with other forest properties to elucidate the importance of various factors for the observed changes in forest structure. After 50 years, the still significant changes in the forest structure and species composition indicate that the compartments have not reached the state of an old growth forest. Although some measures indicated that the compartments were approaching this stage, other showed the opposite response and even an increasing rate of change. As the three statistical methods contributed in different ways, we recommend the combination of several statistical methods to assess changes in the forest structure.

  • 50.
    Wolf, Annett
    Linnéuniversitetet, Universitetsförvaltningen. Forest Ecology, Institute of Terrestrial Ecosystems, Department of Environmental Science, ETH Zurich, Universitätsstrasse 16, CH-8092 Zurich, Switzerland.
    Estimating the potential impact of vegetation on the water cycle requires accurate soil water parameter estimation2011Ingår i: Ecological Modelling, ISSN 0304-3800, E-ISSN 1872-7026, Vol. 222, nr 15, s. 2595-2605Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    It is well known that vegetation dynamics at the catchment scale depends on the prevailing weather and soil moisture conditions. Soil moisture, however, is not equally distributed in space due to differences in topography, weather patterns, soil properties and the type and amount of vegetation cover. To elucidate the complex interaction between vegetation and soil moisture, the dynamic vegetation model LPJ-GUESS (Smith et al., 2001), which provides estimations of vegetation dynamics, but does not consider lateral water fluxes was coupled with the hydrological TOPMODEL (cf. Beven, 2001) in order to be able to evaluate the importance of these lateral fluxes. The new model LG-TM was calibrated and validated in two climatically different mountain catchments. The estimations of runoff were good, when monthly and weekly time scales were considered, although the low flow periods at winter time were somewhat underestimated. The uncertainty in the climate induced change vegetation carbon storage caused by the uncertainty in soil parameters was up to 3–5 kg C m−2 (depending on elevation and catchment), compared to the total change in vegetation carbon storage of 5–9 kg C m−2. Therefore accurate estimates of the parameters influencing the water holding capacity of the soil, for example depth and porosity, are necessary when estimating future changes in vegetation carbon storage. Similarly, changes in plant transpiration due to climatic changes could be almost double as high (88 mm m−2) in the not calibrated model compared to the new model version (ca 50 mm m−2 transpiration change). The uncertainties in these soil properties were found to be more important than the lateral water exchange between grid cells, even in steep topography at least for the temporal and spatial resolution used here.

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