hkr.sePublications
Change search
Refine search result
1234567 151 - 200 of 309
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 151.
    Hultberg, M
    et al.
    Swedish University of Agricultural Sciences.
    Bodin, Hristina
    Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, Faculty of Natural Science, Avdelningen för miljö- och biovetenskap.
    Fungi-based treatment of real brewery waste streams and its effects on water quality2019In: Bioprocess and biosystems engineering (Print), ISSN 1615-7591, E-ISSN 1615-7605, Vol. 42, no 8, p. 1317-1324Article in journal (Refereed)
    Abstract [en]

    Nutrient-rich liquid waste streams generated during the beer brewing were treated by submerged fungal growth. Among five filamentous fungal strains tested, Pleurotus ostreatus and Trichoderma harzianum were selected for treatment of run-off from spent grain and hot trub, respectively. In both waste streams, nitrogen was well removed by fungal treatment, with a maximum reduction of 91.5 ± 0.5% of total nitrogen in run-off from spent grain treated with P. ostreatus and 77.0 ± 3.1% in hot trub treated with T. harzianum. Removal of phosphorus was considerably lower, with maximum removal of total phosphorus of 30.8 ± 11.1% for the P. ostreatus treatment and 16.6 ± 7.8% for the T. harzianum treatment. Considering the high concentration of phosphorus in the waste sources (320-600 mg L-1), additional techniques for its removal are needed. In the P. ostreatus treatment, a total amount of 13.2 ± 2.2 g L-1 dwt of biomass with a protein concentration of 11.6 ± 2.1% was produced.

  • 152.
    Hultberg, Malin
    et al.
    Swedish University of Agricultural Sciences.
    Bodin, Hristina
    Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, Faculty of Natural Science, Avdelningen för miljö- och biovetenskap. Swedish University of Agricultural Sciences.
    Effects of fungal-assisted algal harvesting through biopellet formation on pesticides in water2018In: Biodegradation, ISSN 0923-9820, E-ISSN 1572-9729, Vol. 29, no 6, p. 557-565Article in journal (Refereed)
    Abstract [en]

    Recent research has demonstrated the potential of using filamentous fungi to form pellets with microalgae (biopellets), in order to facilitate harvesting of microalgae from water following algae-based treatment of wastewater. In parallel, there is a need to develop techniques for removing organic pollutants such as pesticides and pharmaceuticals from wastewater. In experiments using the microalga Chlorella vulgaris, the filamentous fungus Aspergillus niger and biopellets composed of these microorganisms, this study investigated whether fungal-assisted algal harvesting can also remove pesticides from contaminated water. A mixture of 38 pesticides was tested and the concentrations of 17 of these were found to be reduced significantly in the biopellet treatment, compared with the control. After harvesting, the concentration of total pesticides in the algal treatment did not differ significantly from that in the control. However, in the fungal treatment and biopellet treatment, the concentration was significantly lower (59.6 ± 2.0 µg/L and 56.1 ± 2.8 µg/L, respectively) than in the control (66.6 ± 1.0 µg/L). Thus fungal-assisted algal harvesting through biopellet formation can also provide scope for removing organic pollutants from wastewater, with removal mainly being performed by the fungus.

  • 153.
    Hultberg, Malin
    et al.
    Swedish University of Agricultural Sciences.
    Bodin, Hristina
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Ardal, Embla
    Swedish University of Agricultural Sciences.
    Asp, Håkan
    Swedish University of Agricultural Sciences.
    Effect of microalgal treatments on pesticides in water2016In: Environmental Technology, Vol. 37, no 7, p. 893-898Article in journal (Refereed)
    Abstract [en]

    The effect of the microalgae Chlorella vulgaris on a wide range of different pesticides in water was studied. Treatments included short-term exposure (1 h) to living and dead microalgal biomass and long-term exposure (4 days) to actively growing microalgae. The initial pesticide concentration was 63.5 ± 3.9 µg L−1. There was no significant overall reduction of pesticides after short-term exposure. A significant reduction of the total amount of pesticides was achieved after the long-term exposure to growing microalgae (final concentration 29.7 ± 1.0 µg L−1) compared with the long-term control (37.0 ± 1.2 µg L−1). The concentrations of 10 pesticides out of 38 tested were significantly lowered in the long-term algal treatment. A high impact of abiotic factors such as sunlight and aeration for pesticide reduction was observed when the initial control (63.5 ± 3.9 µg L−1) and the long-term control (37.0 ± 1.2 µg L−1) were compared. The results suggest that water treatment using microalgae, natural inhabitants of polluted surface waters, could be further explored not only for removal of inorganic nutrients but also for removal of organic pollutants in water.

  • 154.
    Hultberg, Malin
    et al.
    Swedish University of Agricultural Sciences.
    Prade, Thomas
    Swedish University of Agricultural Sciences.
    Bodin, Hristina
    Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Swedish University of Agricultural Sciences.
    Vidakovic, Aleksandar
    Swedish University of Agricultural Sciences.
    Asp, Håkan
    Swedish University of Agricultural Sciences.
    Adding benefit to wetlands: valorization of harvested common reed through mushroom production2018In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 637-638, p. 1395-1399Article in journal (Refereed)
    Abstract [en]

    Wetlands have been successfully implemented as water purification systems for removal of plant nutrients and can play a significant role in nutrient recycling, depending on use of the harvested biomass. In a constructed wetland in southern Sweden examined in this study, assimilation of plant nutrients in wetland biomass corresponded to 234 kg/ha nitrogen, 22.8 kg/ha phosphorus, and 158 kg/ha potassium in the study year (2016). The harvested biomass, composed exclusively of common reed, was evaluated as a substrate for production of oyster mushrooms, one of the most widely produced edible mushrooms in the world. The biological efficiency of the substrate was 138 ± 10%, corresponding to production of 1.4 kg mushrooms (fresh weight) based on 1 kg reed (dry weight). The fruiting bodies had high quality, with total protein concentration 18.3 ± 2.8% and very low levels of contaminating heavy metals. Thus, nutrient assimilation in wetland biomass not only decreases the risk of eutrophication in recipient waters, but can be utilized for direct production of high-quality food. The biomass remaining after mushroom production, composed of mycelium and partly degraded wetland biomass, has potential for use in ruminant feed, i.e., as roughage.

  • 155.
    Hörnaeus, K.
    et al.
    Uppsala University.
    Guillemant, J.
    Uppsala University.
    Mi, J.
    Uppsala University.
    Hernroth, Bodil
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Bergquist, J.
    Uppsala University.
    Bergström Lind, Sara
    Uppsala University.
    Mass spectrometry data from a quantitative analysis of protein expression in gills of immuno-challenged blue mussels (Mytilus edulis)2016In: Data in Brief, E-ISSN 2352-3409, Vol. 8, p. 470-473Article in journal (Refereed)
    Abstract [en]

    Here, we provide the dataset associated with our research article on the potential effects of ocean acidification on antimicrobial peptide (AMP) activity in the gills of Mytilus edulis, "Impact of ocean acidification on antimicrobial activity in gills of the blue mussel (Mytilus edulis)" [1]. Blue mussels were stimulated with lipopolysaccharides and samples were collected at different time points post injection. Protein extracts were prepared from the gills, digested using trypsin and a full in-depth proteome investigation was performed using liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). Protein identification and quantification was performed using the MaxQuant 1.5.1.2 software, "MaxQuant enables high peptide identification rates, individualized p.p.b.-range mass accuracies and proteome-wide protein quantification" [2].

  • 156. Islam, Kamal Ziaul
    et al.
    Islam, Md Sirajul
    North South University, Dhaka.
    Lacoursière, Jean O.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Dessborn, Lisa
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Low cost rainwater harvesting: an alternate solution to salinity affected coastal region of Bangladesh2014In: American Journal of Water Resources, ISSN 2333-4819, Vol. 2, no 6, p. 141-148Article in journal (Refereed)
    Abstract [en]

    This study investigated the prospect of rainwater harvesting as a low cost alternative potable water supply option along the coastal region of Bangladesh, which is considered as one of the most vulnerable countries in the world due to climate change and resulting sea level rise. Because of increasing salinity intrusion, potable water scarcity become severe at the south-western coastal region of the country. The study area for this investigation was Patkelghata in Satkhira district of Bangladesh located in the same zone. The Satkhira district averages nearly 1,710 mm rainfall per year. Based on rural housing pattern of the region, a rainwater harvesting system is proposed, which consists of roof catchment, gutters, down pipes, first flush devices, filter chamber and storage tank. The minimum catchment area was assumed to be 6 m2 and storage tank of 2000 liter capacity. Data was collected on the present state of freshwater supply, sources and quality, average rainfall in the region, dry spell period, family size, water use nature, rain water quality and material to be used for storage, etc. Rainwater quality was also tested and the parameters were found to be within Bangladesh’s standard limit. After a detail calculation, an approximate cost was assumed to be $171 for building and operation of the whole system. A questionnaire survey was also conducted on views and opinion of local people to understand the problems, prospects and the popularity of rainwater harvesting in Bangladesh.

  • 157.
    Johanna, Grönroos
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Alerstam, Thomas
    Lunds universitet.
    Green, Martin
    Lunds universitet.
    Orientation of shorebirds in relation to wind: both drift and compensation in the same region2013In: Journal of Ornithology, ISSN 2193-7192, E-ISSN 2193-7206, Vol. 154, p. 385-392Article in journal (Refereed)
    Abstract [en]

    Migratorymovements in air or water are strongly affected by wind and ocean currents and an animal which does not compensate for lateral flow will be drifted from its intended direction of movement. We investigated whether arctic shorebirds during autumn migration in the region of South Sweden and the southern Baltic Sea compensate for wind drift or allow themselves to be drifted when approaching a known goal area under different circumstances (over sea, over land, at low and high altitude) using two different approaches, visual telescope observations and tracking radar. The shorebirds showed clearly different responses to crosswinds along this short section (\200 km) of the migratory journey, from almost full drift when departing over the sea, followed by partial drift and almost full compensation at higher altitudes over land during later stages. Our study demonstrates that shorebirds are also remarkably variable in their response to crosswinds during short sections of their migratory journey. The recorded initial drift close to departure is probably not adaptive but rather a result of constraints in the capacity of the birds to compensate in some situations, e.g. in low-altitude climbing flight over the sea. We found no difference in orientation response to wind between adult and juvenile birds. This study indicates, in addition to adaptive orientation responses to wind, the importance of the nonadaptive wind drift that contributes to increasing the variability of drift/compensation behaviour between places that are separated by only short distances, depending on the local topographic and environmental conditions.

  • 158.
    Johanna, Grönroos
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Gunnarsson, Gunnar
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Digitaliserade kursintroduktioner2017In: Högskolepedagogisk debatt, ISSN 2000-9216, no 2, p. 18-20Article in journal (Other (popular science, discussion, etc.))
  • 159.
    Jonsson, Lars J.
    Kristianstad University, Forskningsmiljön Man and Biosphere Health (MABH). Kristianstad University, Department of Mathematics and Science.
    Agroeca dentigera and Entelecara omissa (Araneae: Liocranidae, Linyphiidae), found in Sweden2005In: Arachnologische Mitteilungen, ISSN 1018-4171, Vol. 29, p. 49-52Article in journal (Refereed)
    Abstract [en]

    The rare spider species Agroeca dentigera Kulczyński, 1913 (Liocranidae) and Entelecara omissa O. P.-Cambridge,1902 (Linyphiidae), have been found in a small coastal freshwater fen in Lomma (55°42'N 13°4'E),north of Malmö in Scania in southernmost Sweden. A. dentigera was also found on a salt water meadow southof Malmö. Both species have been found only in a few wet localities in Europe. Entelecara depilata Tullgren, 1955,is a junior synonym of Entelecara omissa O. P.-Cambridge, 1902, new synonymy.

  • 160.
    Jonsson, Lars J.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Atlantplattfoting Polydesmus angustus - en för Sverige ny plattfoting2010In: Fauna och flora : populär tidskrift för biologi, ISSN 0014-8903, Vol. 105, no 1, p. 34-37Article in journal (Other academic)
  • 161.
    Jonsson, Lars J.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Den giftiga större taggspindeln Cheiracanthium punctorium (Araneae, Miturgidae) återfunnen i Sverige2005In: Entomologisk Tidskrift, ISSN 0013-886X, Vol. 126, no 4, p. 183-186Article in journal (Other academic)
  • 162.
    Jonsson, Lars J.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Den säregna spindelfaunan (Araneae) på den hotade heden utanför fängelset i Vä2008In: Fazett, ISSN 1100-2425, Vol. 21, no 1, p. 15-20Article in journal (Other (popular science, discussion, etc.))
  • 163.
    Jonsson, Lars J.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Dvärgspindeln Baryphyma pratense (Blackw.) funnen i Sverige2004In: Fazett, ISSN 1100-2425, Vol. 17, no 2, p. 39-41Article in journal (Other academic)
  • 164.
    Jonsson, Lars J.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Getingspindeln, Argiope bruennichi, etablerad och sprider sig norrut i Sverige2004In: Entomologisk Tidskrift, ISSN 0013-886X, Vol. 125, no 3, p. 117-120Article in journal (Other academic)
  • 165.
    Jonsson, Lars J.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Grenlocke Dicranopalpus ramosus -en för Sverige ny art av lockespindel2013In: Fauna och flora : populär tidskrift för biologi, ISSN 0014-8903, Vol. 108, no 1, p. 18-21Article in journal (Other academic)
  • 166.
    Jonsson, Lars J.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Invasiv bladbagge tog tåget – andra fyndet av Chrysolina americana (L.) i Sverige (Col., Chrysomelidae)2016In: Fazett, ISSN 1100-2425, Vol. 29, no 2, p. 63-65Article in journal (Other academic)
  • 167.
    Jonsson, Lars J.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Några intressanta spindelfynd från Gotland2002In: Fazett, ISSN 1100-2425, Vol. 15, no 2, p. 35-40Article in journal (Other academic)
  • 168.
    Jonsson, Lars J.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Solviken-Ransvik: Bergsbrant med speciell fauna och flora2013In: Möllekuriren, no 2, p. 14-15Article in journal (Other (popular science, discussion, etc.))
  • 169.
    Jonsson, Lars J.
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Andersson, Pia
    Spindlar och lockespindlar funna på Lilla Karlsö2008In: Körkmacken, Vol. 49, p. 14-16Article in journal (Other academic)
  • 170.
    Jonsson, Lars J.
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Bergsten, Johannes
    Spindelfynd från Umetrakten med en komprimerad lista över Sveriges spindlar2005In: Natur i Norr, ISSN 0280-5618, Vol. 24, no 2, p. 97-102Article in journal (Other academic)
  • 171.
    Jonsson, Lars J.
    et al.
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Halling, Arne
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Hessel, Rebecca
    Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Gott om småkryp men ont om fimpar i fågelholkar2015In: Spoven, ISSN 1103-0917, Vol. 39, no 2, p. 31-35Article in journal (Other (popular science, discussion, etc.))
  • 172.
    Jonsson, Lars J.
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Snazell, Rowley
    England.
    Stewart, Jim A
    Skottland.
    Neon robustus Lohmander (Araneae: Salticidae), a fennoscandian spider found in Scottland and Ireland1999In: The Bulletin of the British Arachnological Society, ISSN 0524-4994, Vol. 11, no 6, p. 251-254Article in journal (Refereed)
  • 173.
    Jonsson, Lars J.
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Wilander, Per
    Är getingspindeln, Argiope bruennichi, etablerad i Sverige?1999In: Entomologisk Tidskrift, ISSN 0013-886X, Vol. 120, no 1-2, p. 17-21Article in journal (Other academic)
  • 174.
    Jönsson, Ingemar
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    ECOSIMP – ett transdisciplinärt projekt om införlivandet av ekosystemtjänstbegreppet i kommunala plan- och beslutsprocesser2015In: Vattenriket i Fokus, ISSN 1653-9338, Vol. 2015, no 4, p. 44-47Article in journal (Other (popular science, discussion, etc.))
    Abstract [en]

    The project “Implementing the ecosystem services concept at the municipal level” (ECOSIMP, 2013-2016) studies the conditions for integrating the concept and approach of ecosystem services into municipal planning and decision-making. The project is performed in close cooperation with representatives from the seven municipalities Kristianstad, Simrishamn, Trelleborg, Malmö, Lomma, Helsingborg and Båstad in the province Skåne, Region Skåne and Skåne Association of Local Authorities. The project includes studies of how municipality officials and politicians view the opportunities and obstacles to implement the concept, as well as studies of historical and present planning and decision cases involving aspects of ecosystem services. The final report from the project will be delivered at the end of 2016.

  • 175.
    Jönsson, Ingemar
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Forskningsmiljön Man & Biosphere Health – Högskolan Kristianstads miljöforskning i Biosfärområde Kristianstads Vattenrike2015Collection (editor) (Other (popular science, discussion, etc.))
  • 176.
    Jönsson, Ingemar
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Forskningsmiljön Man & Biosphere Health och forskningen i Kristianstads Vattenrike2015In: Vattenriket i Fokus, ISSN 1653-9338, Vol. 2015, no 4, p. 2-6Article in journal (Other (popular science, discussion, etc.))
    Abstract [en]

    Man and Biosphere Health (MABH, www.hkr.se/mabh) is a multidisciplinary research platform at Kristianstad University focusing on the interactions between human impacts on ecosystems, ecosystem functioning and biodiversity, and human health and well-being. The platform was established in 2009 and currently has 29 members from a variety of scientific fields, including microbiology, ecology, and environmental technology/chemistry/education, and has a profile towards applied sustainability research in aquatic systems. The name of the platform connects directly to the UNESCO biosphere programme “Man and the Biosphere”, which consider human populations as an integrated part of the ecosystems. The location of Kristianstad University with the biosphere reserve Kristianstads Vattenrike provides MABH with a unique opportunity to contribute to the supporting functions (which include research) within the biosphere reserve, and to benefit from the manifold activities and practical social-ecological projects taking place. Within its research, MABH collaborates with many societal partners, both local, regional and national, and with businesses, and has a wide international network of collaborators.

  • 177.
    Jönsson, Ingemar
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Forskningsmiljön Man and Biosphere Health (MABH).
    Beltran-Pardo, Eliana
    Pontificia Universidad Javeriana, Instituto de Genética Humana, Bogotá.
    Haghdoost, Siamak
    Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University.
    Wojcik, Andrzej
    Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University.
    Bermúdez-Cruz, Rosa María
    Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional - CINVESTAV, Mexico City.
    Bernal Villegas, Jaime E.
    Pontificia Universidad Javeriana, Instituto de Genética Humana, Bogotá.
    Harms-Ringdahl, Mats
    Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University.
    Tolerance to gamma-irradiation in eggs of the tardigrade Richtersius coronifer depends on stage of development2013In: Journal of limnology, ISSN 1129-5767, E-ISSN 1723-8633, Vol. 72, no s1, p. 73-79Article in journal (Refereed)
    Abstract [en]

    Tardigrades are known as one of the most radiation tolerant animals on Earth, and several studies on tolerance in adult tardigrades have been published. In contrast, very few studies on radiation tolerance of embryonic stages have been reported. Here we report a study on tolerance to gamma irradiation in eggs of the eutardigrade Richtersius coronifer. Irradiation of eggs collected directly from a natural substrate (moss) showed a clear dose-response, with a steep decline in hatchability at doses up to 0.4 kGy followed by a relatively constant hatchability around 25% up to 2 kGy, and a decline to ca. 5% at 4 kGy above which no eggs hatched. Analysis of the time required for eggs to hatch after irradiation (residual development time) showed that hatching of eggs after exposure to high doses of gamma radiation was associated with short residual development time. Since short residual development time means that the egg was irradiated at a late developmental stage, this suggests that eggs were more tolerant to radiation late in development. This was also confirmed in another experiment in which stage of development at irradiation was controlled. No eggs irradiated at the early developmental stage hatched, and only one egg at middle stage hatched, while eggs irradiated in the late stage hatched at a rate indistinguishable from controls. This suggests that the eggs are more sensitive to radiation in the early stages of development, or that tolerance to radiation is acquired only late in development, shortly before the eggs hatch, hypotheses that are not mutually exclusive. Our study emphasizes the importance of considering specific cell cycle phases and developmental stages in studies of tolerance to radiation in tardigrades, and the potential importance of embryonic studies in revealing the mechanisms behind the radiation tolerance of tardigrades and other cryptobiotic animals.

  • 178.
    Jönsson, K. Ingemar
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Forskningsmiljön Man and Biosphere Health (MABH).
    Long-term experimental manipulation of moisture conditions and its impact on moss-living tardigrades2007In: Journal of limnology, ISSN 1129-5767, E-ISSN 1723-8633, Vol. 66, no Suppl. 1, p. 119-125Article in journal (Refereed)
    Abstract [en]

    The effects of long-term experimentally modified hydration conditions on populations of moss-living tardigrades were investigated in a naturally dry South-Swedish alvar environment at the Island Öland. Carbonite rocks with mosses were collected from rock fences and arranged in three experimental groups: increased dehydration, increased hydration, and control. The total experimental period was 18 months, with treatments applied during two 6 month periods. The density of tardigrade populations was recorded. The total population of tardigrades, all species included, tended to be lower under watering treatment, but the difference was only marginally significant. Populations of Richtersius coronifer and Echiniscus spiniger did not respond to the treatments, while populations of Milnesium tardigradum declined under conditions of increased hydration. The density of eggs in R. coronifer was also lower in the watering treatment. Thus, no positive response to increased hydration was recorded. These results suggest that the tardigrade populations either were not limited by the amount of hydrated periods, or that some other factor(s) counteracted the expected positive response to increased hydration. All populations showed a high variability in density among different moss samples, and the rock from which a sample was taken explained a significant part of this variability. This confirms a commonly believed, but seldom quantified, high heterogeneity in density of semi-terrestrial tardigrades, also among seemingly very similar substrates.

  • 179.
    Jönsson, K. Ingemar
    Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, Faculty of Natural Science, Avdelningen för miljö- och biovetenskap.
    Radiation tolerance in tardigrades: current knowledge and potential applications in medicine2019In: Cancers, ISSN 2072-6694, Vol. 11, no 9Article, review/survey (Refereed)
    Abstract [en]

    Tardigrades represent a phylum of very small aquatic animals in which many species have evolved adaptations to survive under extreme environmental conditions, such as desiccation and freezing. Studies on several species have documented that tardigrades also belong to the most radiation-tolerant animals on Earth. This paper gives an overview of our current knowledge on radiation tolerance of tardigrades, with respect to dose-responses, developmental stages, and different radiation sources. The molecular mechanisms behind radiation tolerance in tardigrades are still largely unknown, but omics studies suggest that both mechanisms related to the avoidance of DNA damage and mechanisms of DNA repair are involved. The potential of tardigrades to provide knowledge of importance for medical sciences has long been recognized, but it is not until recently that more apparent evidence of such potential has appeared. Recent studies show that stress-related tardigrade genes may be transfected to human cells and provide increased tolerance to osmotic stress and ionizing radiation. With the recent sequencing of the tardigrade genome, more studies applying tardigrade omics to relevant aspects of human medicine are expected. In particular, the cancer research field has potential to learn from studies on tardigrades about molecular mechanisms evolved to maintain genome integrity.

  • 180.
    Jönsson, K. Ingemar
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Radiation tolerance in tardigrades: evidence and implications2008In: Comparative Biochemistry and Physiology A, ISSN 1095-6433, E-ISSN 1531-4332, Vol. 151, no Suppl. 1, p. S33-Article in journal (Other academic)
    Abstract [en]

    Tardigrades belong to the most desiccation-tolerant animals on Earth, and are able to lose practically all water in their cells without dying. Recent investigations have also confirmed a seminal study from 1964 showing that tardigrades have an extraordinary tolerance also to ionizing radiation. The biochemical and physiological mechanisms behind these two tolerance phenomena, and the possible functional link between them, is currently not understood. However, the finding that desiccated and non-desiccated tardigrades show similar tolerances to ionizing radiation suggests that radiation tolerance in these animals is not a physical function of the dry state. Rather, both mechanisms preventing damage and mechanisms repairing damage to cell components are likely to be involved. The possible involvement of DNA repair mechanisms in tolerances of anhydrobiotic animals make them of special interest for understanding naturally evolved adaptations for coping with environmental agents inducing damage to DNA. I will summarize our current knowledge about radiation tolerance in tardigrades and other anhydrobiotic animals, discuss some of its implications for our understanding of desiccation tolerance, and also present some recent data on radiation tolerance in tardigrade embryos.

  • 181.
    Jönsson, K. Ingemar
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Tardigrades as a potential model organism in space research2007In: Astrobiology, ISSN 1531-1074, E-ISSN 1557-8070, Vol. 7, no 5, p. 757-766Article in journal (Refereed)
    Abstract [en]

    Exposure of living organisms to open space requires a high level of tolerance to desiccation, cold, and radiation. Among animals, only anhydrobiotic species can fulfill these requirements. The invertebrate phylum Tardigrada includes many anhydrobiotic species, which are adapted to survive in very dry or cold environmental conditions. As a likely by-product of the adaptations for desiccation and freezing, tardigrades also show a very high tolerance to a number of other, unnatural conditions, including exposure to ionizing radiation. This makes tardigrades an interesting candidate for experimental exposure to open space. This paper reviews the tolerances that make tardigrades suitable for astrobiological studies and the reported radiation tolerance in other anhydrobiotic animals. Several studies have shown that tardigrades can survive gamma-irradiation well above 1 kilogray, and desiccated and hydrated (active) tardigrades respond similarly to irradiation. Thus, tolerance is not restricted to the dry anhydrobiotic state, and I discuss the possible involvement of an efficient, but yet undocumented, mechanism for DNA repair. Other anhydrobiotic animals (Artemia, Polypedium), when dessicated, show a higher tolerance to gamma-irradiation than hydrated animals, possibly due to the presence of high levels of the protective disaccharide trehalose in the dry state. Tardigrades and other anhydrobiotic animals provide a unique opportunity to study the effects of space exposure on metabolically inactive but vital metazoans.

  • 182.
    Jönsson, K. Ingemar
    Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, Faculty of Natural Science, Avdelningen för miljö- och biovetenskap.
    Transdisciplinär forskning visar vägen mot en hållbar ekologisk utveckling2018In: Man and Biosphere Health: en komplett akademisk miljö / [ed] Ann-Sofi Rehnstam-Holm, Kristianstad: Högskolan Kristianstad , 2018, p. 48-56Chapter in book (Other academic)
  • 183.
    Jönsson, K. Ingemar
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Tuffa djur prövas i rymden2007In: Populär astronomi, ISSN 1650-7177, Vol. 8, no 4, p. 10-Article in journal (Other (popular science, discussion, etc.))
  • 184.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, Faculty of Natural Science, Avdelningen för miljö- och biovetenskap.
    Beery, Thomas H.
    Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, Faculty of Education, Avdelningen för matematik- och naturvetenskapernas didaktik.
    Bengtsson, Fredrik
    Helsingborg municipality .
    Björn, Helena
    Lomma municipality.
    Boström, Marja
    Skåne Association of Local Authorities.
    Cole, Scott
    EnviroEconomics Sweden.
    Ersborg, Johanna
    Ecogain AB.
    Franzén, Frida
    Tyréns AB.
    Hasselström, Linus
    KTH Royal Institute of Technology.
    Jephson, Therese
    Skåne Association of Local Authorities.
    Lindblom, Erik
    IVL Swedish Environmental Research Institute.
    Mellin, Anna
    IVL Swedish Environmental Research Institute.
    Pettersson, Ida
    Ecogain AB.
    Scharin, Henrik
    Formas Research Council for Sustainable Development, Sweden..
    Söderqvist, Tore
    Anthesis Enveco AB.
    Environmental compensation as a policy tool in Swedish municipal planning2019Conference paper (Refereed)
    Abstract [en]

    In the struggle to reach the national environmental policy objectives, environmental compensation has emerged as a possible policy tool that may contribute to achieving the objectives. In Sweden, environmental compensation is legally mandated mainly in cases of exploitation within Natura 2000 areas and nature reserves, which is handled through the Swedish Environmental Code. In contrast, regulatory support is weak when it comes to compensation for impacts arising from municipal development (e.g., housing, schools, hospitals, local roads, etc), even though detailed development planning is required through the Planning and Building Act. Despite this, some municipalities have voluntarily mainstreamed environmental compensation into their planning processes. In the research project ”MuniComp” (2018-2020) we investigate the more progressive use of environmental compensation in planning in two Southern Swedish municipalities, Lomma and Helsingborg (in the province of Skåne). We analyze the models and processes of compensation used, and planning cases where compensation have been applied, in terms of general aspects and criteria for environmental compensation and in light of the constraints of the Swedish legislative context. In the presentation, the compensation models and some of the results from the compensation cases will be presented.

  • 185.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Beery, Thomas H.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    van Dijk, Jiska
    Norge.
    Bongard, Terje
    Norge.
    Seidl, Roman
    Schweiz.
    Stålhammar, Sanna
    Lund University .
    Managing the transformation –: perspectives from human evolution and human behavioral ecology2015Conference paper (Other academic)
    Abstract [en]

    Transforming the current society towards sustainability is a formidable task, requiring changes at many levels of society. Reductions in our use of natural resources and environmental impacts of human societies are necessary, while maintaining a progress in satisfying human well-being in a growing world population. Considerable efforts in developing low impact economy and technology will be needed to change societies towards more sustainable social-ecological systems. However, perhaps the most challenging aspect of this transformation is to manage the very roots of the problem: the human mind. Implicit in many, if not all, of the well-known causes of environmental degradation (e.g., externalities of businesses and individual behavior, tragedy of the unmanaged commons, conspicuous consumption) are a human mind originally evolved to maximize individual reproductive success within short-sighted perspectives and small social groups. We are therefore ill equipped to take responsibility for long-term global environmental problems. We argue that an understanding of human evolution and the functioning of the brain as an adaptive unit underlying human behavior will be necessary in order to create societal reorganization and incentives that successfully deal with the challenges of the Anthropocene. Cooperation and altruistic behavior are certainly part of the human repertoire but only if social contexts are arranged to support these behaviors. We believe that evolutionary approaches to human behavior can no longer be left out of the discussion on the environmental crisis, and in environmental policy, and that managing the transformation will also require applying evolutionary science to human behavior.

  • 186.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Czarnezki, J
    Eco-labeling policy in light of human behavioral ecology and evolutionary psychology2013Conference paper (Other academic)
    Abstract [en]

    Eco-labeling can foster environmentally friendly consumer behavior and, in the aggregate, influenceand reduce environmental harm. In light of consumer interest and perceived economics gains for producers and retailers for making and selling a value-added product, eco-labels have proliferated. Despite the increase in green labels, there are concerns about consumer confusion and best practices, and there is limited information on the best process in creating an eco-label, what types of eco-labels are effective in changing consumer behavior, and how they should be designed. Our approach to eco-labeling is that a successful labeling should be rooted in the basic evolutionary psychological mechanisms underlying human decisions and behavior. Thus, development of eco-labeling strategies may benefit from exploration of evolutionary theories on human behavior. Based on this premise we analyse various aspects of eco-labeling and discuss what eco-label strategies anddesigns are expected to be successful and which may not be so.

  • 187.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Ekelund, Nils
    Malmö University.
    Wamsler, Christine
    Lund University .
    Brink, Ebba
    Lund University.
    Beery, Thomas H.
    Palo, Thomas R.
    Swedish University of Agricultural Science.
    Schubert, Per
    Malmö University.
    Stålhammar, Sanna
    Lund University .
    Bramryd, Torleif
    Lund University.
    Johansson, Michael
    Lund University.
    Implementering av ekosystemtjänst-begreppet i kommunal verksamhet: slutrapport2017Report (Other academic)
    Abstract [sv]

    Projektet ECOSIMP handlar om förutsättningen för att implementera begreppet ekosystemtjänst, i fortsättningen kallat EST-begreppet, i kommunerna, och undersöker bland annat hur kommunala tjänstemän och politiker ser på denna utmaning. En intervjustudie genomfördes med tjänstemän och politikeri de sju medverkande kommunerna. I en studie av Malmö stad undersöktes hur ekosystemtjänst-relaterade begrepp har integrerats i översiktsplaner ochutvecklats till ett verktyg i hållbar samhällsplanering. Ett annat delprojekt handlar om miljökonsekvens-bedömningar (MKB) och behovet av metodutveckling för att integrera ekosystemtjänstansatsen i MKB, där möjligheten att integrera ekosystemtjänster i den så kallade RIAM-metoden analyserades. Projektet innehåller också en analys av arbetet med att integrera ekosystemtjänsteri kommunernas klimatanpassning, så kallad ekosystembaserad klimatanpassning (EbA). Slutligen redovisas en analys av det transdisciplinära arbetssättet inom ECOSIMP-projektet. Resultaten visar att EST-begreppet idag är relativt välkänt i kommunerna och att det finns en övervägande positiv inställning till det och förhoppningar om att det ska skapa större möjlighet till miljöhänsyn. Förståelsen av begreppet behöver dock fördjupas i den kommunala verksamheten och distinktionen mellan implicit och explicit användning av EST-begreppet och den relaterade EST-ansatsen förtydligas. Ett antal hinder och möjligheter för att börja använda begreppet och för att uppnå etappmålet 2018 identifierades också. Bland annat upplevs innebörden av etappmålet 2018 som oklar, och bara en mindre del av de intervjuade i kommunerna ansåg att etappmålet skulle nås. Betydelsen av att politiker och allmänhet får kännedom om, och förståelse för, EST-begreppet betonades också. Malmö framstår som ett bra exempel på hur långsiktigt arbete för en hållbar stadsutveckling kan skapa förutsättningar att integrera ekosystemtjänster i den fysiska planeringen. Analysen av EbA i kommunerna visade att initiativ relaterade till klimatanpassning och ekosystemtjänster oftast inte är samordnade, men de skulle kunna utvecklas i den riktningen genom bättre samordning mellan kommunernas olika enheter och integrering av EbA i den långsiktiga planeringen utifrån kunskap om nutida och framtida klimatrisker. Verktyg för att värdera förändringar i EST till följd av mänsklig exploatering behövs och här föreslås en utveckling av den såkallade RIAM-metoden, som kan erbjuda ett sätt att väga in olika EST i planeringen. Den transdisciplinära analysen visar på värdet av nära samverkan mellan forskning och kommuner kring implementeringen av EST-ansatsen, men också på behovet av politiskt och ekonomiskt stöd för att frigöra tid för kommunerna att delta i sådana projekt.

  • 188.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Herczeg, Gabor
    Finland.
    O´Hara, Robert
    Finland.
    Söderman, Fredrik
    Uppsala University.
    ter Schure, Arnout
    USA.
    Larsson, Per
    Lund University.
    Merilä, Juha
    Finland.
    Sexual patterns of prebreeding energy reserves in the common frog Rana temporaria along a latitudinal gradient2009In: Ecography, ISSN 0906-7590, E-ISSN 1600-0587, Vol. 32, no 5, p. 831-839Article in journal (Refereed)
    Abstract [en]

    The ability to store energy is an important life history trait for organisms facing long periods without energy income, and in particular for capital breeders such as temperate zone amphibians, which rely on stored energy during reproduction. However, large scale comparative studies of energy stores in populations with different environmental constraints on energy allocation are scarce. We investigated energy storage patterns in spring (after hibernation and before reproduction) in eight common frog (Rana temporaria) populations exposed to different environmental conditions along a 1600 km latitudinal gradient across Scandinavia (range of annual activity period 3-7 months). Analyses of lean body weight (eviscerated body mass), weight of fat bodies, liver weight, and liver fat content, showed that (i) post-hibernation/pre-breeding energy stores increased with increasing latitude in both sexes, (ii) males generally had larger energy reserves than females and (iii) the difference in energy stores between sexes decreased towards the north. Larger energy reserves towards the north can serve as a buffer against less predictable and/or less benign weather conditions during the short activity period, and may also represent a risk-averse tactic connected with a more pronounced iteroparous life history. In females, the continuous and overlapping vitellogenic activity in the north may also demand more reserves in early spring. The general sexual difference could be a consequence of the fact that, at the time of our sampling, females had already invested their energy into reproduction in the given year (i.e. their eggs were already ovulated), while the males' main reproductive activities (e.g. calling, mate searching, sexual competition) occurred later in the season.

  • 189.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, Faculty of Natural Science, Avdelningen för miljö- och biovetenskap.
    Holm, Ingvar
    Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, Faculty of Natural Science, Avdelningen för miljö- och biovetenskap.
    Tassidis, Helena
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH).
    Cell biology of the tardigrades: current knowledge and perspectives2019In: Evo-Devo: Non-model species in cell and developmental biology / [ed] Tworzydlo W., Bilinski S., Cham: Springer, 2019, p. 231-249Chapter in book (Other academic)
    Abstract [en]

    The invertebrate phylum Tardigrada has received much attention for containing species adapted to the most challenging environmental conditions where an ability to survive complete desiccation or freezing in a cryptobiotic state is necessary for persistence. Although research on tardigrades has a long history, the last decade has seen a dramatic increase in molecular biological (“omics”) studies, most of them with the aim to reveal the biochemical mechanisms behind desiccation tolerance of tardigrades. Several other aspects of tardigrade cell biology have been studied, and we review some of them, including karyology, embryology, the role of storage cells, and the question of whether tardigrades are eutelic animals. We also review some of the theories about how anhydrobiotic organisms are able to maintain cell integrity under dry conditions, and our current knowledge on the role of vitrification and DNA protection and repair. Many aspects of tardigrade stress tolerance have relevance for human medicine, and the first transfers of tardigrade stress genes to human cells have now appeared. We expect this field to develop rapidly in the coming years, as more genomic information becomes available. However, many basic cell biological aspects remain to be investigated, such as immunology, cell cycle kinetics, cell metabolism, and culturing of tardigrade cells. Such development will be necessary to allow tardigrades to move from a nonmodel organism position to a true model organism with interesting associations with the current models C. elegans and D. melanogaster.

  • 190.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Hygum, Thomas L
    Danmark.
    Andersen, Kasper N
    Danmark.
    Clausen, Lykke K. B.
    Danmark.
    Møbjerg, Nadja
    Danmark.
    Tolerance to gamma radiation in the marine heterotardigrade, Echiniscoides sigismundi2016In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 11, no 12, article id e0168884Article in journal (Refereed)
    Abstract [en]

    Tardigrades belong to the most radiation tolerant animals on Earth, as documented by a number of studies using both low-LET and high-LET ionizing radiation. Previous studies have focused on semi-terrestrial species, which are also very tolerant to desiccation. The predominant view on the reason for the high radiation tolerance among these semi-terrestrial species is that it relies on molecular mechanisms that evolved as adaptations for surviving dehydration. In this study we report the first study on radiation tolerance in a marine tardigrade, Echiniscoides sigismundi. Adult specimens in the hydrated active state were exposed to doses of gamma radiation from 100 to 5000 Gy. The results showed little effect of radiation at 100 and 500 Gy but a clear decline in activity at 1000 Gy and higher. The highest dose survived was 4000 Gy, at which ca. 8% of the tardigrades were active 7 days after irradiation. LD50 in the first 7 days after irradiation was in the range of 1100±1600 Gy. Compared to previous studies on radiation tolerance in semi-terrestrial and limnic tardigrades, Echiniscoides sigismundi seems to have a lower tolerance. However, the species still fits into the category of tardigrades that have high tolerance to both desiccation and radiation, supporting the hypothesis that radiation tolerance is a by-product of adaptive mechanisms to survive desiccation. More studies on radiation tolerance in tardigrade species adapted to permanently wet conditions, both marine and freshwater, are needed to obtain a more comprehensive picture of the patterns of radiation tolerance.

  • 191.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, Faculty of Natural Science, Research environment Man & Biosphere Health (MABH). Kristianstad University, Faculty of Natural Science, Avdelningen för miljö- och biovetenskap.
    Levin, Eliana B
    USA & Colombia.
    Wojcik, Andrzej
    Stockholm University.
    Haghdoost, Siamak
    Stockholm University & France.
    Harms-Ringdahl, Mats
    Stockholm University.
    Environmental adaptations: radiation tolerance2019In: Water bears: the biology of tardigrades / [ed] Ralph O Schill, Springer, 2019, p. 311-330Chapter in book (Other academic)
    Abstract [en]

    Several studies in different species have documented that tardigrades are among the most radiation-tolerant animals on Earth, surviving doses of ionizing radiation on the order of kGy. Both low-LET and high-LET radiation have been used with no apparent differences in the tolerance of the animals. Tolerance to ionizing radiation in tardigrades also seems to be independent of whether the animal has entered a dry anhydrobiotic state or is hydrated with normal activity. However, when exposed to UV radiation, desiccated tardigrades show a higher tolerance than hydrated animals. Recent studies in several species have shown that tardigrade embryos have considerably lower tolerance to ionizing radiation compared to adults, and embryos in the early stage of development are clearly more sensitive to radiation than those in the late developmental stage. The molecular mechanisms behind radiation tolerance in tardigrades are still largely unclear, but available evidence suggests that mechanisms related to both the avoidance of DNA damage and the repair of damage are involved.

  • 192.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Forskningsmiljön Man and Biosphere Health (MABH).
    Persson, Ola
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Trehalose in three species of desiccation tolerant tardigrades2010In: Open Zoology Journal, ISSN 1874-3366, Vol. 3, p. 1-5Article in journal (Refereed)
    Abstract [en]

    We report a study on the presence of the disaccharide trehalose in three desiccation tolerant tardigrades. This sugar has long been suggested to play a protective role in desiccation tolerant animals. Trehalose was found in all species, with increased levels in dehydrated specimens of Macrobiotus islandicus, and possibly also in Macrobiotus krynauwi, both belonging to the family Macrobiotidae. In the third species, Milnesium tardigradum, very low amounts of trehalose were found, with no increase in the dehydrated state. This species has previously been reported to lack trehalose. Induction of trehalose has been reported only for species in the family Macrobiotidae, where also the highest levels have been found. Although the role of trehalose in the desiccation tolerance of tardigrades remains unclear, the diverging patterns in response to desiccation are interesting. Further studies of higher tardigrade taxa are needed in order to understand the evolutionary history of trehalose in these invertebrates.

  • 193.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Rabbow, Elke
    Tyskland.
    Schill, Ralph O
    Tyskland.
    Harms-Ringdahl, Mats
    Stockholm University.
    Rettberg, Petra
    Tyskland.
    Tardigrades survive exposure to space in low earth orbit2008In: Current Biology, ISSN 0960-9822, E-ISSN 1879-0445, Vol. 18, no 17, p. R729-R731Article in journal (Refereed)
    Abstract [en]

    Vacuum (imposing extreme dehydration) and solar/galactic cosmic radiation prevent survival of most organisms in space . Only anhydrobiotic organisms, which have evolved adaptations to survive more or less complete desiccation, have a potential to survive space vacuum, and few organisms can stand the unfiltered solar radiation in space. Tardigrades, commonly known as water-bears, are among the most desiccation and radiation-tolerant animals and have been shown to survive extreme levels of ionizing radiation. Here, we show that tardigrades are also able to survive space vacuum without loss in survival, and that some specimens even recovered after combined exposure to space vacuum and solar radiation. These results add the first animal to the exclusive and short list of organisms that have survived such exposure.

  • 194.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man and Biosphere Health (MABH).
    Rehnstam-Holm, Ann-Sofi
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man and Biosphere Health (MABH).
    Thelaus, Magnus
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Dahlblom, Peter
    Hur kvalitetssäkrar vi framtida examensarbeten inom naturvetenskap och biomedicin?2013In: Högskolepedagogisk debatt, ISSN 2000-9216, no 1, p. 16-26Article in journal (Other academic)
  • 195.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH).
    Schill, Ralph O.
    Tyskland.
    Induction of Hsp70 by desiccation, ionising radiation and heat-shock in the eutardigrade Richtersius coronifer2007In: Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology, ISSN 1096-4959, E-ISSN 1879-1107, Vol. 146, no 4, p. 456-460Article in journal (Refereed)
    Abstract [en]

    The physiology and biochemistry behind the extreme tolerance to desiccation shown by the so-called anhydrobiotic animals represents an exciting challenge to biology. The current knowledge suggests that both carbohydrates and proteins are often involved in protecting the dry cell from damage, or in the repair of induced damage. Tardigrades belong to the most desiccation-tolerant multicellular organisms, but very little research has been reported on the biochemistry behind desiccation tolerance in this group. We quantified the induction of the heat-shock protein Hsp70, a very wide-spread stress protein, in response to desiccation, ionising radiation, and heating, in the anhydrobiotic tardigrade Richtersius coronifer using an immuno-westemblot method. Elevated levels of Hsp70 were recorded after treatment of both heat and ionising radiation, and also in rehydrated tardigrades after a period of desiccation. In contrast, tardigrades in the desiccated (dry) state had reduced Hsp70 levels compared to the non-treated control group. Our results suggest that Hsp70 may be involved in the physiological and biochemical system underlying desiccation (and radiation) tolerance in tardigrades, and that its role may be connected to repair processes after desiccation rather than to biochemical stabilization in the dry state.

  • 196.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Schill, Ralph O
    Tyskland.
    Rabbow, Elke
    Tyskland.
    Rettberg, Petra
    Tyskland.
    Harms-Ringdahl, Mats
    Stockholm University.
    The fate of the TARDIS offspring: no intergenerational effects of space exposure in Milnesium tardigradum2015Conference paper (Refereed)
    Abstract [en]

    In September 2007 tardigrades became the first animal in the history to survive the combined effect of exposure to space vacuum, cosmic radiation, and ultra-violet radiation in low Earth orbit. The main results from this experiment were reported in 2008, but some of the results have remained unpublished. Here we report that no delayed effects of the exposure to space could be detected in the descendants (up to F3 generation) of space exposed Milnesium tardigradum. This indicates that individual tardigrades that survived the damage induced by environmental agents in space, and were able to reproduce, did not transfer any delayed damage to later generations. Repair of environmentally induced damage may therefore follow a “make or break” rule, such that a damaged animal either fails to repair all damage and dies, or repairs damage successfully and leaves no mutations to descendants. We also provide previously unreported data on two tardigrade species, Echiniscus testudo and Ramazzottius oberhaeuseri, that showed high survival after exposure to space vacuum and cosmic radiation within the TARDIS experiment.

  • 197.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Schill, Ralph
    Tyskland.
    Rabbow, Elke
    Tyskland.
    Rettberg, Petra
    Tyskland.
    Harms-Ringdahl, Mats
    Stockholm University.
    The fate of the TARDIS offspring: no intergenerational effects of space exposure2016In: Zoological Journal of the Linnean Society, ISSN 0024-4082, E-ISSN 1096-3642, Vol. 178, no 4, p. 924-930Article in journal (Refereed)
    Abstract [en]

    In September 2007 tardigrades became the first animal in history to survive the combined effect of exposure to space vacuum, cosmic radiation and ultraviolet radiation in low Earth orbit. The main results from this experiment were reported in 2008, but some of the results have remained unpublished. Here we report that descendant generations of space-exposed tardigrades of the species Milnesium tardigradum did not show reduced performance. This indicates that individual tardigrades that survived the exposure to environmental extremes in space, and were able to reproduce, did not transfer any damage to later generations. Repair of environmentally induced damage may therefore follow a ‘make or break’ rule, such that a damaged animal either fails to repair all damage and dies, or repairs damage successfully and leaves no mutations to descendants. We also report that two additional tardigrade species, Echiniscus testudo and Ramazzottius oberhaeuseri, showed high survival after exposure to space vacuum and cosmic radiation within the TARDIS experiment.

  • 198.
    Jönsson, K. Ingemar
    et al.
    Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
    Wojcik, Andrzej
    Stockholms universitet.
    Tolerance to X-rays and Heavy Ions (Fe, He) in the Tardigrade Richtersius coronifer and the Bdelloid Rotifer Mniobia russeola2017In: Astrobiology, ISSN 1531-1074, E-ISSN 1557-8070, Vol. 17, no 2, p. 163-167Article in journal (Refereed)
    Abstract [en]

    The aim of this study was to analyze tolerance to heavy ions in desiccated animals of the eutardigrade Richtersius coronifer and the bdelloid rotifer Mniobia russeola within the STARLIFE project. Both species were exposed to iron (Fe) and helium (He) ions at the Heavy Ion Medical Accelerator in Chiba (HIMAC) in Chiba, Japan, and to X-rays at the German Aerospace Center (DLR) in Cologne, Germany. Results show no effect of Fe and He on viability up to 7 days post-rehydration in both R. coronifer and M. russeola, while X-rays tended to reduce viability in R. coronifer at the highest doses. Mean egg production rate tended to decline with higher doses in R. coronifer for all radiation types, but the pattern was not statistically confirmed. In M. russeola, there was no such tendency for a dose response in egg production rate. These results confirm the previously reported high tolerance to high linear energy transfer (LET) radiation in tardigrades and show for the first time that bdelloid rotifers are also very tolerant to high-LET radiation. These animal phyla represent the most desiccation- and radiation-tolerant animals on Earth and provide excellent eukaryotic models for astrobiological research. 

  • 199.
    Kaminski, Richard M.
    et al.
    Mississippi State University.
    Elmberg, Johan
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man and Biosphere Health (MABH).
    An introduction to habitat use and selection by waterfowl in the northern hemisphere2014In: Wildfowl, ISSN 0954-6324, E-ISSN 2052-6458, no Special Issue 4, p. 9-16Article in journal (Refereed)
    Abstract [en]

    This introductory article aims to provide a theoretical framework to the topics of habitat use and selection by waterfowl (i.e. family Anatidae) in the northern hemisphere during the four stages of their annual cycle: autumn migration and winter, spring migration and pre-breeding, nesting and brood rearing, and postbreeding and moulting. Papers addressing each of these seasonal sectors of the annual cycle, which follow this introduction, were presented at the 6th North American Duck Symposium, “Ecology and Conservation of North American Waterfowl” in Memphis, Tennessee in January 2013. Here, we consider the theory and selected empirical evidence relevant to waterfowl habitat and resource use and selection that may affect individual survival and fitness of waterfowl in Nearctic and Palearctic ecozones. Additionally, where possible, a comparative taxonomic approach is attempted in the following papers to identify and generalise patterns in habitat and resource use and selection across waterfowl taxa that may influence biological outcomes for individuals, populations and species through space and time. Each of the subsequent papers use accumulated science-based information to recommend future opportunities and strategies for research and for habitat and population conservation. Collectively, our goals in synthesising information on waterfowl are to help sustain harvestable populations of waterfowl and to protect rare species amid worldwide changes in climate, landscape, economics, socio-politics and growth of human populations.

  • 200.
    Karlson, Bengt
    et al.
    SMHI.
    Rehnstam-Holm, Ann-Sofi
    Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Forskningsmiljön Man and Biosphere Health (MABH).
    Algal toxins (DSP/PSP Mussel Infection Events)2002In: Swedish national report on eutrophication status in the Kattegatt and the Skagerrak: OSPAR assessment 2002 / [ed] Bertil Håkansson, Norrköping: SMHI , 2002, p. 50-52Chapter in book (Other academic)
    Abstract [en]

    The blue mussels (Mytilus edulis) along the Swedish west coast have contained DSP-toxins above the limit for consumption during part of the year every year since the monitoring programme started in 1988. Some areas that previously have been believed to be toxin free have experienced toxic events the last few years. PSP-toxins occur only rarely and usually below the limit for ban of consumption. However, e.g. in 2002, concentrations were higher than the limit for a short period in one fjord.

1234567 151 - 200 of 309
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf