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Uppsala University
- Disciplinary Domain of Humanities and Social Sciences
  - Center for Integrated Research on Culture and Society (CIRCUS)
  - Faculty of Arts
    - Centre for Gender Research
    - Department of ALM
      - Centre for Digital Humanities
    - Department of Archaeology and Ancient History
      - African and Comparative Archaeology
      - Archaeology
      - Classical archaeology and ancient history
      - Egyptology
    - Department of Art History
      - Conservation
      - Textile Studies
    - Department of Cultural Anthropology and Ethnology
    - Department of Game Design
    - Department of History of Science and Ideas
    - Department of History
      - The Hugo Valentin Centre
    - Department of Literature and Rhetoric
      - Rhetoric
      - Sociology of Literature
    - Department of Musicology
    - Department of Philosophy
      - Aesthetics
      - Ethics and Social Philosophy
      - Logic and Metaphysics
  - Faculty of Educational Sciences
    - Department of Education
      - Centre for Professional Development and Internationalisation in Schools
  - Faculty of Languages
    - Department of English
      - Celtic Section
      - The Swedish Institute for North American Studies
    - Department of Linguistics and Philology
    - Department of Modern Languages
      - Albanian
      - Finno-Ugric Languages
      - German
      - Romance Languages
      - Slavic Languages
    - Department of Scandinavian Languages
  - Faculty of Law
    - Center for Police Research
    - Department of Law
    - Real Estate Research Institute
  - Faculty of Social Sciences
    - Department of Business Studies
    - Department of Economic History
      - Science and Technology Studies Center
      - Uppsala Centre for Business History
    - Department of Economics
      - Uppsala Center for Fiscal Studies
      - Uppsala Center for Labor Studies (UCLS)
    - Department of Food Studies, Nutrition and Dietetics
    - Department of Government
    - Department of Human Geography
    - Department of Informatics and Media
      - Human-Computer Interaction
      - Information Systems
      - Media and Communication Studies
      - The Swedish IT-User Centre
    - Department of Peace and Conflict Research
    - Department of Psychology
    - Department of Social Work
    - Department of Sociology
    - Department of Statistics
    - Institute for Housing and Urban Research
    - Institute for Russian and Eurasian Studies
  - Faculty of Theology
    - Centre for Multidisciplinary Research on Religion and Society (CRS Uppsala)
    - Centre for Multidisciplinary Studies on Racism
    - Department of Theology
      - Church History and Mission History
      - Empirical-Practical Studies of Religion and Theology
      - Ethics and Philosophy of Religion
      - History of Religions and World Christianity
      - Old and New Testament Exegesis
      - Social Sciences of Religion and Practical Theology
      - Systematic Theology
- Disciplinary Domain of Medicine and Pharmacy
  - Disciplinary Domain of Medicine and Pharmacy, research centers etc.
    - Center for Clinical Research Dalarna
    - Centre for Clinical Research Sörmland
    - Centre for Clinical Research, County of Västmanland
    - Centre for Disability Research
    - Centre for Reproductive Biology in Uppsala (CRU)
    - Centre for Research and Development, Gävleborg
    - CEOS
    - National Centre for Disaster Psychiatry
    - Uppsala Antibiotic Center
    - Uppsala Clinical Research Center (UCR)
  - Faculty of Medicine
    - Department of Immunology, Genetics and Pathology
      - Cancer Immunotherapy
      - Cancer precision medicine
      - Genomics and Neurobiology
      - Molecular Tools and Functional Genomics
      - Neurooncology and neurodegeneration
      - Vascular Biology
    - Department of Medical Biochemistry and Microbiology
    - Department of Medical Cell Biology
      - Integrative Physiology
      - Research group Dan Larhammar
      - Research Group Karin Nordström
      - Research group Markus Sjöblom/Olof Nylander
      - Research group Mia Lindskog
      - Research group Svante Winberg
    - Department of Medical Sciences
      - Acquired brain injury
      - Autoimmunity
      - Biochemical endocrinology
      - Cancer Pharmacology and Computational Medicine
      - Cardiology-Arrhythmia
      - Cardiology
      - Child and Adolescent Psychiatry
      - Clinical Chemistry
      - Clinical diabetology and metabolism
      - Clinical Epidemiology
      - Clinical Microbiology
      - Clinical Neurophysiology
      - Clinical pharmacogenomics and osteoporosis
      - Clinical Physiology
      - Coagulation and inflammation science
      - Dermatology and Venereology
      - Endocrine Oncology
      - Endocrine Tumor Biology
      - Endocrinology and mineral metabolism
      - Experimental neurology
      - Gastroenterology/Hepatology
      - Haematology
      - Health Economics
      - Infection medicine
      - Lung- allergy- and sleep research
      - Molecular epidemiology
      - Molecular Precision Medicine
      - Neurology
      - Neurosurgery
      - Occupational and Environmental Medicine
      - Psychiatry
      - Rehabilitation Medicine
      - Renal Medicine
      - Rheumatology
      - Transplantation and regenerative medicine
    - Department of Public Health and Caring Sciences
      - Caring Sciences
      - Centre for Research Ethics and Bioethics
      - Clinical geriatrics
      - Clinical Nutrition and Metabolism
      - Family Medicine and Preventive Medicine
      - Health Services Research
      - Molecular Geriatrics
      - Public health, working life and rehabilitation
      - Public Health
      - Research in Disability and Habilitation
      - Social medicine/CHAP
      - Speech-Language Pathology
    - Department of Surgical Sciences
      - Anaesthesiology and Intensive Care
        Hedenstierna laboratory
      - Endocrine Surgery
      - Experimental Surgery
      - Forensic Medicine
      - Functional Pharmacology and Neuroscience
      - Medical epidemiology
      - Molecular imaging and medical physics
      - Neuroradiologi
      - Nursing Research
      - Odontology & Maxillofacial Surgery
      - Ophthalmic Biophsics
      - Orthopaedics and Handsurgery
      - Otolaryngology and Head and Neck Surgery
      - Pain
      - Plastic Surgery
      - Radiology
      - Thoracic Surgery
      - Transplantation Surgery
      - Upper Abdominal Surgery
      - Urology
      - Vascular Surgery
    - Department of Women's and Children's Health
      - Cardiovascular Psychology
      - CIRCLE – Complex Intervention Research in Health and Care
      - Clinical and translational research in pediatric oncology
      - Clinical Obstetrics
      - International Child Health and Nutrition
      - International Maternal and Reproductive Health and Migration
      - Medical psychology and care science
      - Neuropsychopharmacology
      - Obstetrics and Reproductive Health Research
      - Occupational Therapy
      - Paediatric Inflammation, Metabolism and Child Health Research
      - Participatory eHealth and Health Data Research Group
      - Pediatric oncological and neurological research
      - Pediatric Surgery
      - PERCEPT – Mental Imagery and Mental Health
      - Perinatal, Neonatal and Pediatric Cardiology Research
      - Physiotherapy and behavioral medicine
      - Reproductive biology
      - Reproductive Health
      - SWEDESD - Sustainability Learning and Research Centre
  - Faculty of Pharmacy
    - Department of Medicinal Chemistry
      - Analytical Pharmaceutical Chemistry
      - Chemical Biology for Biomarker Discovery
      - Drug Design and Discovery
      - Farmakognosi
      - Preclinical PET-MRI Platform
      - Preparative Medicinal Chemistry
      - Theranostics
      - Translational PET Imaging
    - Department of Pharmaceutical Biosciences
    - Department of Pharmacy
- Disciplinary Domain of Science and Technology
  - Biology
    - Biology Education Centre
      - Klubban Biological Station
      - Swedish Centre for School Biology and Biotechnology
    - Department of Cell and Molecular Biology
      - Computational Biology and Bioinformatics
      - Microbiology and Immunology
      - Molecular Biology
      - Molecular biophysics
      - Molecular Evolution
      - Molecular Systems Biology
      - Structural Biology
    - Department of Ecology and Genetics
      - Animal ecology
      - Evolutionary Biology
      - Limnology
      - Plant Ecology and Evolution
    - Department of Organismal Biology
      - Evolution and Developmental Biology
      - Human Evolution
      - Physiology and Environmental Toxicology
      - Systematic Biology
    - Swedish Biodiversity Centre
  - Chemistry
    - Department of Chemistry - BMC
      - Analytical Chemistry
      - Biochemistry
      - Organic Chemistry
    - Department of Chemistry - Ångström
      - Inorganic Chemistry
      - Macromolecular Chemistry
      - Molecular Biomimetics
      - Physical Chemistry
      - Structural Chemistry
      - Synthetic Molecular Chemistry
  - Earth Sciences
    - Department of Earth Sciences
      - CEMUS
      - Geophysics
      - LUVAL
      - Mineralogy Petrology and Tectonics
      - Natural Resources and Sustainable Development
        Baltic University Programme
        CEMUS Research Forum, CEFO
      - Palaeobiology
      - Uppsala University Sustainability Initiatives (UUSI)
      - Wind Energy
  - Faculty of Science and Technology
  - För teknisk-naturvetenskapliga fakulteten gemensamma enheter
    - International Science Programme (ISP)
    - Tandem Laboratory
  - Mathematics and Computer Science
    - Department of Information Technology
      - Artificial Intelligence
      - Automatic control
      - Computational Science
      - Computer Architecture and Computer Communication
      - Computer Systems
      - Computerized Image Analysis and Human-Computer Interaction
      - Computing Education Research
      - Computing Science
      - Division of Computer Systems
      - Division of Computing Science
      - Division of Scientific Computing
      - Division of Systems and Control
      - Division Vi3
      - Numerical Analysis
    - Department of Mathematics
      - Algebra, Logic and Representation Theory
      - Analysis and Partial Differential Equations
      - Dynamical Systems and Number Theory
      - Geometri and Physics
      - Probability Theory and Combinatorics
      - Statistics, AI and Data Science
  - Physics
    - Department of Physics and Astronomy
      - Applied Nuclear Physics
      - Chemical and Bio-Molecular Physics
      - Condensed Matter Physics of Energy Materials
      - FREIA
      - High Energy Physics
      - Instrumentation and Accelerators
      - Materials Physics
      - Materials Theory
      - Nuclear Physics
      - Observational Astronomy
      - Physics Didactics
      - Quantum Matter Theory
      - Space Plasma Physics
      - The Svedberg Laboratory
      - Theoretical Astrophysics
      - Theoretical Physics
    - Swedish Institute of Space Physics, Uppsala Division
  - Technology
    - Department of Civil and Industrial Engineering
      - Civil Engineering and Built Environment
      - Industrial Engineering and Management
    - Department of Electrical Engineering
      - Electricity
      - Networked Embedded Systems
      - Signals and Systems
      - Solid-State Electronics
    - Department of Materials Science and Engineering
      - Applied Material Science
      - Applied Mechanics
      - Microsystems Technology
        Ångström Space Technology Centre (ÅSTC)
      - Nanotechnology and Functional Materials
      - Solar Cell Technology
      - Solid State Physics
- Music and Museums
  - Museum of Evolution
  - The Linnean Gardens of Uppsala
    - Botanical Garden
  - Uppsala University Museum
    - The Art Collections of the University
    - Uppsala University Coin Cabinet
- National Centre for Knowledge on Men's Violence Against Women
- Science for Life Laboratory, SciLifeLab
- Swedish Collegium for Advanced Study (SCAS)
- Units outside the University
  - The Institute for Evaluation of Labour Market and Education Policy (IFAU)
- University Administration
  - Buildings Division
  - Communications Division
  - Division for International Coordination
  - Division for Quality Enhancement
  - Division for Research and Collaboration Support
  - Division of Contract Education
  - Faculty Offices
  - Financial Administration Division
  - Human Resources Division
  - International coordinator
  - IT Division
  - Legal Affairs Division
  - Music and Museums
  - Planning Division
  - Security and safety division
  - Student Affairs and Academic Registry Division
  - Uppsala University Innovation (UU Innovation)
- University Board and Chief Officers
- University Committees
  - Equal Opportunity Committee
- University Library
- Uppsala University Innovation Partnership Office
- WoMHeR (Centre for Women’s Mental Health during the Reproductive Lifespan)

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Agricultural and Veterinary sciences
- Agricultural Biotechnology
  - Genetics and Breeding in Agricultural Sciences
  - Plant Biotechnology
- Agricultural Science, Forestry and Fisheries
  - Agricultural Science
  - Fish and Aquacultural Science
  - Food Science
  - Forest Science
  - Horticulture
  - Landscape Architecture
  - Soil Science
  - Wood Science
- Animal and Dairy Science
- Other Agricultural Sciences
  - Agricultural Occupational Health and Safety
  - Environmental Sciences related to Agriculture and Land-use
  - Fish and Wildlife Management
  - Other Agricultural Sciences not elsewhere specified
  - Renewable Bioenergy Research
- Veterinary Science
  - Clinical Science
  - Medical Bioscience
  - Other Veterinary Science
  - Pathobiology
Engineering and Technology
- Chemical Engineering
  - Chemical Process Engineering
  - Corrosion Engineering
  - Other Chemical Engineering
  - Pharmaceutical Chemistry
  - Polymer Technologies
- Civil Engineering
  - Architectural Engineering
  - Building Technologies
  - Construction Management
  - Environmental Analysis and Construction Information Technology
  - Geotechnical Engineering
  - Infrastructure Engineering
  - Other Civil Engineering
  - Transport Systems and Logistics
  - Water Engineering
- Electrical Engineering, Electronic Engineering, Information Engineering
  - Communication Systems
  - Computer Systems
  - Control Engineering
  - Embedded Systems
  - Other Electrical Engineering, Electronic Engineering, Information Engineering
  - Robotics
  - Signal Processing
  - Telecommunications
- Environmental Biotechnology
  - Bioethics
  - Bioremediation
  - Diagnostic Biotechnology
  - Other Environmental Biotechnology
  - Water Treatment
- Environmental Engineering
  - Energy Systems
  - Environmental Management
  - Geophysical Engineering
  - Marine Engineering
  - Mineral and Mine Engineering
  - Ocean and River Engineering
  - Other Environmental Engineering
  - Remote Sensing
- Industrial Biotechnology
  - Bio Materials
  - Biocatalysis and Enzyme Technology
  - Biochemicals
  - Bioenergy
  - Bioengineering Equipment
  - Bioprocess Technology
  - Medical Biotechnology
  - Other Industrial Biotechnology
  - Pharmaceutical Biotechnology
- Materials Engineering
  - Ceramics
  - Composite Science and Engineering
  - Manufacturing, Surface and Joining Technology
  - Metallurgy and Metallic Materials
  - Other Materials Engineering
  - Paper, Pulp and Fiber Technology
  - Textile, Rubber and Polymeric Materials
- Mechanical Engineering
  - Aerospace Engineering
  - Applied Mechanics
  - Energy Engineering
  - Fluid Mechanics and Acoustics
  - Other Mechanical Engineering
  - Production Engineering, Human Work Science and Ergonomics
  - Reliability and Maintenance
  - Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
  - Vehicle Engineering
- Medical Engineering
  - Medical Equipment Engineering
  - Medical Ergonomics
  - Medical Image Processing
  - Medical Laboratory and Measurements Technologies
  - Medical Materials
  - Other Medical Engineering
- Nano Technology
- Other Engineering and Technologies
  - Food Engineering
  - Interaction Technologies
  - Media Engineering
  - Other Engineering and Technologies not elsewhere specified
Humanities and the Arts
- Arts
  - Architecture
  - Art History
  - Design
  - Literary Composition
  - Music
  - Musicology
  - Performing Art Studies
  - Performing Arts
  - Studies on Film
  - Visual Arts
- History and Archaeology
  - Archaeology
  - History of Technology
  - History
- Languages and Literature
  - General Language Studies and Linguistics
  - General Literature Studies
  - Specific Languages
  - Specific Literatures
- Other Humanities
  - Classical Archaeology and Ancient History
  - Cultural Studies
  - Ethnology
  - Other Humanities not elsewhere specified
- Philosophy, Ethics and Religion
  - Ethics
  - History of Ideas
  - History of Religions
  - Philosophy
  - Religious Studies
Medical and Health Sciences
- Basic Medicine
  - Cell and Molecular Biology
  - Immunology in the medical area
  - Medical Genetics
  - Medicinal Chemistry
  - Microbiology in the medical area
  - Neurosciences
  - Other Basic Medicine
  - Pharmaceutical Sciences
  - Pharmacology and Toxicology
  - Physiology
  - Social and Clinical Pharmacy
- Clinical Medicine
  - Anesthesiology and Intensive Care
  - Cancer and Oncology
  - Cardiac and Cardiovascular Systems
  - Clinical Laboratory Medicine
  - Dentistry
  - Dermatology and Venereal Diseases
  - Endocrinology and Diabetes
  - Gastroenterology and Hepatology
  - General Practice
  - Geriatrics
  - Hematology
  - Infectious Medicine
  - Neurology
  - Obstetrics, Gynecology and Reproductive Medicine
  - Ophthalmology
  - Orthopaedics
  - Other Clinical Medicine
  - Otorhinolaryngology
  - Pediatrics
  - Psychiatry
  - Radiology, Nuclear Medicine and Medical Imaging
  - Respiratory Medicine and Allergy
  - Rheumatology and Autoimmunity
  - Surgery
  - Urology and Nephrology
- Health Sciences
  - Health Care Service and Management, Health Policy and Services and Health Economy
  - Medical Ethics
  - Nursing
  - Nutrition and Dietetics
  - Occupational Health and Environmental Health
  - Occupational Therapy
  - Other Health Sciences
  - Physiotherapy
  - Public Health, Global Health, Social Medicine and Epidemiology
  - Sport and Fitness Sciences
  - Substance Abuse
- Medical Biotechnology
  - Biomaterials Science
  - Biomedical Laboratory Science/Technology
  - Medical Biotechnology (with a focus on Cell Biology (including Stem Cell Biology), Molecular Biology, Microbiology, Biochemistry or Biopharmacy)
  - Other Medical Biotechnology
- Other Medical Sciences
  - Forensic Science
  - Gerontology, specialising in Medical and Health Sciences
  - Other Medical Sciences not elsewhere specified
Natural Sciences
- Biological Sciences
  - Behavioral Sciences Biology
  - Biochemistry and Molecular Biology
  - Bioinformatics and Systems Biology
  - Biological Systematics
  - Biophysics
  - Botany
  - Cell Biology
  - Developmental Biology
  - Ecology
  - Evolutionary Biology
  - Genetics
  - Immunology
  - Microbiology
  - Other Biological Topics
  - Structural Biology
  - Zoology
- Chemical Sciences
  - Analytical Chemistry
  - Inorganic Chemistry
  - Materials Chemistry
  - Organic Chemistry
  - Other Chemistry Topics
  - Physical Chemistry
  - Polymer Chemistry
  - Theoretical Chemistry
- Computer and Information Sciences
  - Bioinformatics (Computational Biology)
  - Computer Engineering
  - Computer Sciences
  - Computer Vision and Robotics (Autonomous Systems)
  - Human Computer Interaction
  - Information Systems
  - Language Technology (Computational Linguistics)
  - Media and Communication Technology
  - Other Computer and Information Science
  - Software Engineering
- Earth and Related Environmental Sciences
  - Climate Research
  - Environmental Sciences
  - Geochemistry
  - Geology
  - Geophysics
  - Geosciences, Multidisciplinary
  - Meteorology and Atmospheric Sciences
  - Oceanography, Hydrology and Water Resources
  - Other Earth and Related Environmental Sciences
  - Physical Geography
- Mathematics
  - Algebra and Logic
  - Computational Mathematics
  - Discrete Mathematics
  - Geometry
  - Mathematical Analysis
  - Other Mathematics
  - Probability Theory and Statistics
- Other Natural Sciences
- Physical Sciences
  - Accelerator Physics and Instrumentation
  - Astronomy, Astrophysics and Cosmology
  - Atom and Molecular Physics and Optics
  - Condensed Matter Physics
  - Fusion, Plasma and Space Physics
  - Other Physics Topics
  - Subatomic Physics
Social Sciences
- Economics and Business
  - Business Administration
  - Economic History
  - Economics
- Educational Sciences
  - Didactics
  - Learning
  - Pedagogical Work
  - Pedagogy
- Law
  - Law (excluding Law and Society)
  - Law and Society
- Media and Communications
  - Communication Studies
  - Human Aspects of ICT
  - Information Studies
  - Information Systems, Social aspects
  - Media Studies
- Other Social Sciences
  - Gender Studies
  - International Migration and Ethnic Relations
  - Other Social Sciences not elsewhere specified
  - Social Sciences Interdisciplinary
  - Work Sciences
- Political Science
  - Globalisation Studies
  - Political Science (excluding Public Administration Studies and Globalisation Studies)
  - Public Administration Studies
- Psychology
  - Applied Psychology
  - Psychology (excluding Applied Psychology)
- Social and Economic Geography
  - Economic Geography
  - Human Geography
- Sociology
  - Social Anthropology
  - Social Psychology
  - Social Work
  - Sociology (excluding Social Work, Social Psychology and Social Anthropology)

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Administrative Law
Aesthetics
Anaesthesiology and Intensive Care
Analytical Pharmaceutical Chemistry
Applied Mathematics and Statistics
Archaeology
Artificial Intelligence
Assyriology
Astronomy and Astrophysics
Astronomy with specialization in Astrophysics
Astronomy
Biblical Exegesis
Biochemical Pharmacology
Biochemistry
Bioethics
Bioinformatics
Biological Research on Drug Dependence
Biology with Specialisation in Human Evolution and Genetics
Biology with specialization in Animal Conservation
Biology with specialization in Animal Development
Biology with specialization in Animal Ecology
Biology with specialization in Comparative Physiology
Biology with specialization in Ecological Botany
Biology with specialization in Environmental Toxicology
Biology with specialization in Evolutionary Functional Genomics
Biology with specialization in Evolutionary Genetics
Biology with specialization in Evolutionary Organismal Biology
Biology with specialization in Limnology
Biology with specialization in Microbiology
Biology with specialization in Molecular Biotechnology
Biology with specialization in Molecular Evolution
Biology with specialization in Population Biology
Biology with specialization in Structural Biology
Biology with specialization in Systematics
Biology
Biomedical Laboratory Science
Biomedical Radiation Science
Biopharmaceutics
Business Studies
Byzantine Studies
Cardiology
Caring Sciences
Celtic Languages
Chemistry with Specialisation in Theoretical Chemistry
Chemistry with specialization in Analytical Chemistry
Chemistry with specialization in Bioorganic Chemistry
Chemistry with specialization in Inorganic Chemistry
Chemistry with specialization in Macromolecular Chemistry
Chemistry with specialization in Materials Chemistry
Chemistry with specialization in Microbial Chemistry
Chemistry with specialization in Molecular Biomimetics
Chemistry with specialization in Organic Chemistry
Chemistry with specialization in Physical Chemistry
Chemistry with specialization in Polymer Chemistry
Chemistry with specialization in Quantum Chemistry
Chemistry with specialization in Surface Biotechnology
Chemistry
Child and Youth Psychiatry
Church History and Mission History
Church History
Civil and Structural Engineering with specialization in Soil Mechanics
Civil and Structural Engineering
Civil Law
Classical Archaeology and Ancient History
Clinical Bacteriology
Clinical Chemistry
Clinical Genetics
Clinical Immunology
Clinical Neurophysiology
Clinical Pharmacology
Clinical Physiology
Clinical Virology
Comparative Indo-European Linguistics and Philology
Computational Linguistics
Computer Science with specialization in Computer Communication
Computer Science with specialization in Computer Science Education Research
Computer Science with specialization in Database Technology
Computer Science with specialization in Embedded Systems
Computer Science with specialization in Human-Computer Interaction
Computer Science with specialization in Real Time Systems
Computer Science
Computer Systems Sciences
Computerized Image Processing
Computing Education Research
Computing Science
Conservation
Constitutional Law
Corporate Law
Criminal Law
Cultural Anthropology
Curriculum Studies
Domestic Sciences
Drug Metabolism
Earth Science with specialization in Environmental Analysis
Earth Science with specialization in Historical Geology and Palaeontology
Earth Science with specialization in Mineral Chemistry, Petrology and Tectonics
Earth Science with specialization in Physical Geography
Earth Science with specialization in Quaternary Geology
Ecclesiology
Economic History
Economics
Education
Egyptology
Electrical Engineering with Specialisation in Networked Embedded Systems
Electrical Engineering with specialization in Automatic Control
Electrical Engineering with specialization in Signal Processing
Electrical Engineering with specialization in Systems Analysis
Empirical-Practical Studies of Religion and Theology
Endocrinology and Diabetology
Engineering science with specialization in Applied Mechanics
Engineering Science with specialization in Atmospheric Discharges
Engineering Science with specialization in Biomedical Engineering
Engineering Science with specialization in Civil Engineering and Built Environment
Engineering Science with specialization in Electronics
Engineering Science with specialization in industrial engineering and management
Engineering Science with specialization in Materials Analysis
Engineering Science with specialization in Materials Science
Engineering Science with specialization in Microsystems Technology
Engineering Science with specialization in Microwave Technology
Engineering Science with specialization in Nanotechnology and Functional Materials
Engineering Science with specialization in Science of Electricity
Engineering Science with specialization in Solid Mechanics
Engineering Science with specialization in Solid State Physics
Engineering Science with specialization in the Science of Global Energy Resources
Engineering Science with specialization in Tribo Materials
Engineering Science
English
Environmental Law
Epidemiology
Ethics
Ethnology
European (Integration) Law
Experimental Pathology
Family Medicine
Finno-Ugric Languages
Fiscal Law
Food, Nutrition and Dietetics
Forensic Medicine
Gender Studies
Geography
Geophysics with specialization in Seismology
Geophysics with specialization in Solid Earth Physics
Geriatrics
German
Greek
Health Care Research
History of Art
History of Religions and World Christianity
History of Religions
History of Science and Ideas
History of Sciences and Ideas
History
Human Anatomy
Human-Computer Interaction
Hydrology
Immunology
Indology/South Asian Studies
Infectious Diseases
Information Systems
Internal Medicine
International Health
Iranian Languages
Jurisprudence
Latin
Legal History and Sociology of Law
Library and Information Science
Linguistics
Literature
Lung Medicine
Machine learning
Mathematical Logic
Mathematical Statistics
Mathematics with specialization in Applied Mathematics
Mathematics
Media and Communication Studies
Medical Biochemistry
Medical Cell Biology
Medical Genetics
Medical Informatics
Medical Law
Medical Radiophysics
Medical Science
Medical Virology
Medicinal Chemistry
Meteorology
Microbiology
Molecular Cellbiology
Molecular Genetics
Molecular Life Sciences
Molecular Medicine
Musicology
Natural Resources and Sustainable Development
Neurology
Neurosurgery
New Testament Exegesis
Nutrition
Obstetrics and Gynaecology
Occupational and Environmental Medicine
Old Testament Exegesis
Oncology
Ophtalmology
Oral and Maxillofacial Surgery
Orthopaedics
Oto-Rhino-Laryngology
Pathology
Peace and Conflict Research
Pediatric Surgery
Pediatrics
Pharmaceutical Biochemistry
Pharmaceutical Pharmacology
Pharmaceutical Physical Chemistry
Pharmaceutical Science
Pharmaceutics
Pharmacoepidemiology
Pharmacognosy
Pharmacokinetics and Drug Therapy
Pharmacology
Philosophy of Religion
Philosophy, with specialization in history of philosophy
Philosophy
Physics and Astronomy specializing in Theoretical Physics
Physics with spec. in Atomic, Molecular and Condensed Matter Physics
Physics with specialization in Applied Nuclear Physics
Physics with specialization in Astrophysics
Physics with specialization in Global Energy Resources
Physics with specialization in Physics Education
Physics with specialization in Quantum Chemistry
Physics with specialization in Space and Plasma Physics
Physics
Physiology
Physiotherapy
Plastic Surgery
Political Science
Practical Philosophy
Private International Law
Procedural Law
Psychiatry
Psychology of Religion
Psychology
Public International Law
Public Law
Radiology
Rehabilitation Medicine
Rhetoric
Romance Languages
Scandinavian Languages
Scientific Computing with specialization in Numerical Analysis
Scientific Computing
Semitic Languages
Sinology
Slavic Languages
Social and Economic Geography
Social Medicine
Social Pharmacy
Social Sciences of Religion and Practical Theology
Social Work
Sociology of Education
Sociology of Religion
Sociology
Statistics
Studies In Faiths and Ideologies
Studies of Churches and Denominations
Studies of Missions
Surgery
Systematic Theology and Studies in Worldviews
Systematic Theology
Textile Studies
Theoretical Philosophy
Theoretical Physics
Thorax Surgery
Transfusion Medicine
Turkic languages
Urology

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Bachelor of Science Programme in Pharmacy
Bachelor Programme in Behavioural Sciences
Bachelor Programme in Biology / Molecular Biology
Bachelor Programme in Business and Economics
Bachelor Programme in Business Studies
Bachelor Programme in Chemistry
Bachelor Programme in Computer Science
Bachelor Programme in Construction Engineering
Bachelor Programme in Cultural Entrepreneurship
Bachelor Programme in Earth Science
Bachelor Programme in Electrical Engineering
Bachelor Programme in Environmental Science
Bachelor Programme in Foodservice and Nutrition
Bachelor Programme in Historical Sciences
Bachelor Programme in Human Resource Management and Working Life
Bachelor programme in Information Systems
Bachelor Programme in Language Technology
Bachelor Programme in Leadership - Quality Management - Improvement
Bachelor Programme in Liberal Arts
Bachelor Programme in Mathematics
Bachelor Programme in Mechanical Engineering
Bachelor Programme in Musicology
Bachelor Programme in Nuclear Engineering
Bachelor Programme in Oriental Studies
Bachelor Programme in Peace and Development Studies
Bachelor Programme in Physics
Bachelor Programme in Political Science
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1. Biomass offsets little or none of permafrost carbon release from soils, streams, and wildfire
Abbott, Benjamin W.
et al.

Univ Rennes 1, OSUR, CNRS, UMR ECOBIO 6553, F-35014 Rennes, France.;Univ Alaska Fairbanks, Inst Arctic Biol, Fairbanks, AK USA.;Univ Alaska Fairbanks, Dept Biology& Wildlife, Fairbanks, AK USA..

Jones, Jeremy B.
Univ Alaska Fairbanks, Inst Arctic Biol, Fairbanks, AK USA.;Univ Alaska Fairbanks, Dept Biology& Wildlife, Fairbanks, AK USA..
Schuur, Edward A. G.
No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA..
Chapin, F. Stuart, III
Univ Alaska Fairbanks, Inst Arctic Biol, Fairbanks, AK USA.;Univ Alaska Fairbanks, Dept Biology& Wildlife, Fairbanks, AK USA..
Bowden, William B.
Univ Vermont, Rubenstein Sch Environm & Nat Resources, Burlington, VT 05405 USA..
Bret-Harte, M. Syndonia
Univ Alaska Fairbanks, Inst Arctic Biol, Fairbanks, AK USA.;Univ Alaska Fairbanks, Dept Biology& Wildlife, Fairbanks, AK USA..
Epstein, Howard E.
Univ Virginia, Dept Environm Sci, Charlottesville, VA 22903 USA..
Flannigan, Michael D.
Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2M7, Canada..
Harms, Tamara K.
Univ Alaska Fairbanks, Inst Arctic Biol, Fairbanks, AK USA.;Univ Alaska Fairbanks, Dept Biology& Wildlife, Fairbanks, AK USA..
Hollingsworth, Teresa N.
Univ Alaska Fairbanks, PNW Res Stn, USDA Forest Serv, Fairbanks, AK USA..
Mack, Michelle C.
No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA..
McGuire, A. David
Univ Alaska Fairbanks, Alaska Cooperat Fish & Wildlife Res Unit, US Geol Survey, Anchorage, AK USA..
Natali, Susan M.
Woods Hole Res Ctr, Woods Hole, MA USA..
Rocha, Adrian V.
Univ Notre Dame, Dept Biol Sci, Notre Dame, IN 46556 USA.;Univ Notre Dame, Environm Change Initiat, Notre Dame, IN 46556 USA..
Tank, Suzanne E.
Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2M7, Canada..
Turetsky, Merritt R.
Univ Guelph, Dept Integrat Biol, Guelph, ON N1G 2W1, Canada..
Vonk, Jorien E.
Vrije Univ Amsterdam, Dept Earth Sci, Amsterdam, Netherlands..
Wickland, Kimberly P.
US Geol Survey, Natl Res Program, Boulder, CO USA..
Aiken, George R.
US Geol Survey, Natl Res Program, Boulder, CO USA..
Alexander, Heather D.
Mississippi State Univ, Forest & Wildlife Res Ctr, Mississippi State, MS 39762 USA..
Amon, Rainer M. W.
Texas A&M Univ, Galveston, TX USA..
Benscoter, Brian W.
Florida Atlantic Univ, Boca Raton, FL 33431 USA..
Bergeron, Yves
Univ Quebec Abitibi Temiscamingue, Forest Res Inst, Rouyn Noranda, PQ, Canada..
Bishop, Kevin
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL. wedish Univ Agr Sci, Dept Aquat Sci & Assessment, S-90183 Umea, Sweden..
Blarquez, Olivier
Univ Montreal, Dept Geog, Montreal, PQ H3C 3J7, Canada..
Bond-Lamberty, Ben
Pacific NW Natl Lab, Richland, WA 99352 USA..
Breen, Amy L.
Univ Alaska Fairbanks, Int Arctic Res Ctr, Scenarios Network Alaska & Arctic Planning, Fairbanks, AK USA..
Buffam, Ishi
Univ Cincinnati, Cincinnati, OH 45221 USA..
Cai, Yihua
Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen, Peoples R China..
Carcaillet, Christopher
Ecole Prat Hautes Etud, UMR5023, CNRS Lyon 1, Lyon, France..
Carey, Sean K.
McMaster Univ, Hamilton, ON L8S 4L8, Canada..
Chen, Jing M.
Univ Toronto, Toronto, ON M5S 1A1, Canada..
Chen, Han Y. H.
Lakehead Univ, Fac Nat Resources Management, Thunder Bay, ON P7B 5E1, Canada..
Christensen, Torben R.
Lund Univ, Arctic Res Ctr, S-22100 Lund, Sweden.;Aarhus Univ, DK-8000 Aarhus C, Denmark..
Cooper, Lee W.
Univ Maryland, Ctr Environm Sci, Bethesda, MD USA..
Cornelissen, J. Hans C.
Vrije Univ Amsterdam, Syst Ecol, Amsterdam, Netherlands..
de Groot, William J.
Nat Resources Canada, Canadian Forest Serv, Toronto, ON, Canada..
DeLuca, Thomas H.
Univ Washington, Sch Environm & Forest Sci, Seattle, WA 98195 USA..
Dorrepaal, Ellen
Umea Univ, Dept Ecol & Environm Sci, Climate Impacts Res Ctr, S-90187 Umea, Sweden..
Fetcher, Ned
Wilkes Univ, Inst Environm Sci & Sustainabil, Wilkes Barre, PA 18766 USA..
Finlay, Jacques C.
Univ Minnesota, Dept Ecol Evolut & Behav, Minneapolis, MN 55455 USA..
Forbes, Bruce C.
Univ Lapland, Arctic Ctr, Rovaniemi, Finland..
French, Nancy H. F.
Michigan Technol Univ, Michigan Tech Res Inst, Houghton, MI 49931 USA..
Gauthier, Sylvie
Nat Resources Canada, Canadian Forest Serv, Laurentian Forestry Ctr, Toronto, ON, Canada..
Girardin, Martin P.
Nat Resources Canada, Canadian Forest Serv, Laurentian Forestry Ctr, Toronto, ON, Canada..
Goetz, Scott J.
Woods Hole Res Ctr, Woods Hole, MA USA..
Goldammer, Johann G.
Max Planck Inst Chem, Global Fire Monitoring Ctr, Berlin, Germany..
Gough, Laura
Towson Univ, Dept Biol Sci, Towson, MD USA..
Grogan, Paul
Queens Univ, Dept Biol, Kingston, ON K7L 3N6, Canada..
Guo, Laodong
Univ Wisconsin Milwaukee, Sch Freshwater Sci, Milwaukee, WI USA..
Higuera, Philip E.
Univ Montana, Dept Ecosyst & Conservat Sci, Missoula, MT 59812 USA..
Hinzman, Larry
Univ Alaska Fairbanks, Fairbanks, AK USA..
Hu, Feng Sheng
Univ Illinois, Dept Plant Biol, Chicago, IL 60680 USA.;Univ Illinois, Dept Geol, Chicago, IL 60680 USA..
Hugelius, Gustaf
Stockholm Univ, Dept Phys Geog, Stockholm, Sweden..
Jafarov, Elchin E.
Univ Colorado Boulder, Inst Arctic & Alpine Res, Boulder, CO USA..
Jandt, Randi
Univ Alaska Fairbanks, Alaska Fire Sci Consortium, Fairbanks, AK USA..
Johnstone, Jill F.
Univ Saskatchewan, Dept Biol, Saskatoon, SK S7N 0W0, Canada..
Karlsson, Jan
Umea Univ, Dept Ecol & Environm Sci, Climate Impacts Res Ctr, S-90187 Umea, Sweden..
Kasischke, Eric S.
Univ Maryland, Dept Geog Sci, Bethesda, MD USA..
Kattner, Gerhard
Helmholtz Ctr Polar & Marine Res, Alfred Wegener Inst, Berlin, Germany..
Kelly, Ryan
Neptune & Co Inc, North Wales, PA USA..
Keuper, Frida
Umea Univ, Dept Ecol & Environm Sci, Climate Impacts Res Ctr, S-90187 Umea, Sweden.;INRA, AgroImpact UPR1158, New York, NY USA..
Kling, George W.
Univ Michigan, Ann Arbor, MI 48109 USA..
Kortelainen, Pirkko
Finnish Environm Inst, Helsinki, Finland..
Kouki, Jari
Univ Eastern Finland, Sch Forest Sci, Joensuu, Finland..
Kuhry, Peter
Stockholm Univ, Dept Phys Geog, Stockholm, Sweden..
Laudon, Hjalmar
Swedish Univ Agr Sci, Dept Forest Ecol & Management, S-90183 Umea, Sweden..
Laurion, Isabelle
Inst Natl Rech Sci, Ctr Eau Terre Environm, Toronto, ON, Canada..
Macdonald, Robie W.
Inst Ocean Sci, Dept Fisheries & Oceans, Toronto, ON, Canada..
Mann, Paul J.
Northumbria Univ, Dept Geog, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England..
Martikainen, Pertti J.
Univ Eastern Finland, Dept Environm & Biol Sci, Joensuu, Finland..
McClelland, James W.
Univ Texas Austin, Inst Marine Sci, Austin, TX 78712 USA..
Molau, Ulf
Univ Gothenburg, Dept Biol & Environm Sci, Gothenburg, Sweden..
Oberbauer, Steven F.
Florida Int Univ, Dept Biol Sci, Miami, FL 33199 USA..
Olefeldt, David
Univ Alberta, Dept Revewable Resources, Edmonton, AB T6G 2M7, Canada..
Pare, David
Nat Resources Canada, Canadian Forest Serv, Laurentian Forestry Ctr, Toronto, ON, Canada..
Parisien, Marc-Andre
Nat Resources Canada, Canadian Forest Serv, No Forestry Ctr, Toronto, ON, Canada..
Payette, Serge
Univ Laval, Ctr Etud Nord, Quebec City, PQ G1K 7P4, Canada..
Peng, Changhui
Univ Quebec, Ctr CEF, ESCER, Montreal, PQ H3C 3P8, Canada.;Northwest A&F Univ, Coll Forestry, State Key Lab Soil Eros & Dryland Farming Loess P, Xian, Peoples R China..
Pokrovsky, Oleg S.
CNRS, Georesources & Environm, Toulouse, France.;Tomsk State Univ, BIO GEO CLIM Lab, Tomsk, Russia..
Rastetter, Edward B.
Marine Biol Lab, Ctr Ecosyst, Woods Hole, MA 02543 USA..
Raymond, Peter A.
Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06520 USA..
Raynolds, Martha K.
Univ Alaska Fairbanks, Inst Arctic Biol, Fairbanks, AK USA..
Rein, Guillermo
Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, London SW7 2AZ, England..
Reynolds, James F.
Lanzhou Univ, Sch Life Sci, Lanzhou 730000, Peoples R China.;Duke Univ, Nicholas Sch Environm, Durham, NC 27706 USA..
Robards, Martin
Arctic Beringia Program, Wildlife Conservat Soc, New York, NY USA..
Rogers, Brendan M.
Woods Hole Res Ctr, Woods Hole, MA USA..
Schaedel, Christina
No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA..
Schaefer, Kevin
Univ Colorado Boulder, Cooperat Inst Res Environm Sci, Natl Snow & Ice Data Ctr, Boulder, CO USA..
Schmidt, Inger K.
Univ Copenhagen, Dept Geosci & Nat Resource Management, DK-1168 Copenhagen, Denmark..
Shvidenko, Anatoly
Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria.;Sukachev Inst Forest, Moscow, Russia..
Sky, Jasper
Cambridge Ctr Climate Change Res, Cambridge, England..
Spencer, Robert G. M.
Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA..
Starr, Gregory
Univ Alabama, Dept Biol Sci, Tuscaloosa, AL 35487 USA..
Striegl, Robert G.
US Geol Survey, Natl Res Program, Boulder, CO USA..
Teisserenc, Roman
Univ Toulouse, CNRS, INPT, ECOLAB,UPS, Toulouse, France..
Tranvik, Lars J.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Virtanen, Tarmo
Univ Helsinki, Dept Environm Sci, FIN-00014 Helsinki, Finland..
Welker, Jeffrey M.
Univ Alaska Anchorage, Anchorage, AK USA..
Zimov, Sergei
Russian Acad Sci, Northeast Sci Stn, Moscow 117901, Russia..
Biomass offsets little or none of permafrost carbon release from soils, streams, and wildfire: an expert assessment2016In: Environmental Research Letters, E-ISSN 1748-9326, Vol. 11, no 3, article id 034014Article in journal (Refereed)
Abstract [en]
As the permafrost region warms, its large organic carbon pool will be increasingly vulnerable to decomposition, combustion, and hydrologic export. Models predict that some portion of this release will be offset by increased production of Arctic and boreal biomass; however, the lack of robust estimates of net carbon balance increases the risk of further overshooting international emissions targets. Precise empirical or model-based assessments of the critical factors driving carbon balance are unlikely in the near future, so to address this gap, we present estimates from 98 permafrost-region experts of the response of biomass, wildfire, and hydrologic carbon flux to climate change. Results suggest that contrary to model projections, total permafrost-region biomass could decrease due to water stress and disturbance, factors that are not adequately incorporated in current models. Assessments indicate that end-of-the-century organic carbon release from Arctic rivers and collapsing coastlines could increase by 75% while carbon loss via burning could increase four-fold. Experts identified water balance, shifts in vegetation community, and permafrost degradation as the key sources of uncertainty in predicting future system response. In combination with previous findings, results suggest the permafrost region will become a carbon source to the atmosphere by 2100 regardless of warming scenario but that 65%-85% of permafrost carbon release can still be avoided if human emissions are actively reduced.
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fulltext
Publisher's full text
2. State of the Climate in 2017Abernethy, R.
et al.

Weyhenmeyer, Gesa A.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Ziese, Markus G.
State of the Climate in 20172018In: Bulletin of The American Meteorological Society - (BAMS), ISSN 0003-0007, E-ISSN 1520-0477, Vol. 99, no 8, p. Si-S310Article in journal (Refereed)
Publisher's full text
3. How much carbon can be added to soil by sorption?Abramoff, Rose Z.
et al.

Georgiou, Katerina

Guenet, Bertrand

Torn, Margaret S.

Huang, Yuanyuan

Zhang, Haicheng

Feng, Wenting

Jagadamma, Sindhu

Kaiser, Klaus

Kothawala, Dolly
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Mayes, Melanie A.

Ciais, Philippe
How much carbon can be added to soil by sorption?2021In: Biogeochemistry, ISSN 0168-2563, E-ISSN 1573-515X, Vol. 152, no 2-3, p. 127-142Article in journal (Refereed)
Abstract [en]
Quantifying the upper limit of stable soil carbon storage is essential for guiding policies to increase soil carbon storage. One pool of carbon considered particularly stable across climate zones and soil types is formed when dissolved organic carbon sorbs to minerals. We quantified, for the first time, the potential of mineral soils to sorb additional dissolved organic carbon (DOC) for six soil orders. We compiled 402 laboratory sorption experiments to estimate the additional DOC sorption potential, that is the potential of excess DOC sorption in addition to the existing background level already sorbed in each soil sample. We estimated this potential using gridded climate and soil geochemical variables within a machine learning model. We find that mid- and low-latitude soils and subsoils have a greater capacity to store DOC by sorption compared to high-latitude soils and topsoils. The global additional DOC sorption potential for six soil orders is estimated to be 107 ± 13 Pg C to 1 m depth. If this potential was realized, it would represent a 7% increase in the existing total carbon stock.
Download full text (pdf)
fulltext
Publisher's full text
4. Global Climate
Ades, M.
et al.

European Ctr Medium Range Weather Forecasts, Reading, Berks, England..

Adler, R.
Univ Maryland, College Pk, MD 20742 USA..
Allan, Rob
Met Off Hadley Ctr, Exeter, Devon, England..
Allan, R. P.
Univ Reading, Reading, Berks, England..
Anderson, J.
Hampton Univ, Dept Atmospher & Planetary Sci, Hampton, VA 23668 USA..
Arguez, Anthony
NOAA NESDIS Natl Ctr Environm Informat, Asheville, NC USA..
Arosio, C.
Univ Bremen, Bremen, Germany..
Augustine, J. A.
NOAA OAR Earth Syst Res Labs, Boulder, CO USA..
Azorin-Molina, C.
Ctr Invest Desertificac Spanish Natl Res Council, Moncada, Valencia, Spain.;Univ Gothenburg, Dept Earth Sci, Reg Climate Grp, Gothenburg, Sweden..
Barichivich, J.
Pontificia Univ Catolica Valparaiso, Inst Geog, Valparaiso, Chile..
Barnes, J.
NOAA OAR ESRL Global Monitoring Lab, Boulder, CO USA..
Beck, H. E.
Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA..
Becker, Andreas
Deutsch Wetterdienst, Global Precipitat Climatol Ctr, Offenbach, Germany..
Bellouin, Nicolas
Univ Reading, Reading, Berks, England..
Benedetti, Angela
European Ctr Medium Range Weather Forecasts, Reading, Berks, England..
Berry, David I.
Natl Oceanog Ctr, Southampton, Hants, England..
Blenkinsop, Stephen
Newcastle Univ, Sch Engn, Newcastle Upon Tyne, Tyne & Wear, England..
Bock, Olivier
Univ Paris, CNRS, Inst Phys Globe Paris, IGN, Paris, France.;IGN, ENSG Geomat, Marne La Vallee, France..
Bosilovich, Michael G.
NASA, Goddard Space Flight Ctr, Global Modeling & Assimilat Off, Greenbelt, MD USA..
Boucher, Olivier
Sorbonne Univ, Paris, France..
Buehler, S. A.
Univ Hamburg, Hamburg, Germany..
Carrea, Laura
Univ Reading, Dept Meteorol, Reading, Berks, England..
Christiansen, Hanne H.
Univ Ctr Svalbard, Dept Geol, Longyearbyen, Norway..
Chouza, F.
CALTECH, Jet Prop Lab, Wrightwood, CA USA..
Christy, John R.
Univ Alabama Huntsville, Huntsville, AL USA..
Chung, E. -S

Coldewey-Egbers, Melanie
German Aerosp Ctr DLR Oberpfaffenhofen, Wessling, Germany..
Compo, Gil P.
Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.;NOAA Earth Syst Res Lab, Div Phys Sci, Boulder, CO USA..
Cooper, Owen R.
NOAA OAR Earth Syst Res Labs, Boulder, CO USA.;Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA..
Covey, Curt
Lawrence Livermore Natl Lab, Livermore, CA 94550 USA..
Crotwell, A.
Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA..
Davis, Sean M.
Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.;NOAA OAR Earth Syst Res Lab, Boulder, CO USA..
de Eyto, Elvira
Inst Marine, Furnace, Newport, Ireland..
de Jeu, Richard A. M.

VanderSat, B. V.

DeGasperi, Curtis L.
King Cty Water & Land Resources Div, Seattle, WA USA..
Degenstein, Doug
Univ Saskatchewan, Saskatoon, SK, Canada..
Di Girolamo, Larry
Univ Illinois, Champaign, IL USA..
Dokulil, Martin T.
Univ Innsbruck, Res Dept Limnol, Innsbruck, Austria..
Donat, Markus G.
Barcelona Supercomp Ctr, Barcelona, Spain..
Dorigo, Wouter A.
TU Wien Vienna Univ Technol, Dept Geodesy & Geoinformat, Vienna, Austria..
Dunn, R. J. H.
Met Off Hadley Ctr, Exeter, Devon, England..
Durre, Imke
NOAA NESDIS Natl Ctr Environm Informat, Asheville, NC USA..
Dutton, Geoff S.
NOAA OAR Earth Syst Res Labs, Boulder, CO USA.;Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA..
Duveiller, G.
European Commiss, Joint Res Ctr, Ispra, Italy..
Elkins, James W.
NOAA OAR Earth Syst Res Labs, Boulder, CO USA..
Fioletov, Vitali E.
Environm & Climate Change Canada, Toronto, ON, Canada..
Flemming, Johannes
European Ctr Medum Range Weather Forecasts, Reading, Berks, England..
Foster, Michael J.
Univ Wisconsin Madison, Cooperat Inst Meteorol Satellite Studies, Space Sci & Engn Ctr, Madison, WI USA..
Frey, Richard A.
Univ Wisconsin Madison, Cooperat Inst Meteorol Satellite Studies, Space Sci & Engn Ctr, Madison, WI USA..
Frith, Stacey M.
Sci Syst & Applicat Inc, Lanham, MD USA.;NASA, Goddard Space Flight Ctr, Greenbelt, MD USA..
Froidevaux, Lucien
CALTECH, Jet Prop Lab, Pasadena, CA USA..
Garforth, J.
Woodland Trust, Grantham, England..
Gobron, N.
European Commiss, Joint Res Ctr, Ispra, Italy..
Gupta, S. K.
Sci Syst & Applicat Inc, Hampton, VA USA..
Haimberger, Leopold
Univ Vienna, Dept Meteorol & Geophys, Vienna, Austria..
Hall, Brad D.
NOAA OAR Earth Syst Res Labs, Boulder, CO USA..
Harris, Ian
Univ East Anglia, Natl Ctr Atmospher Sci, Norwich, Norfolk, England.;Univ East Anglia, Sch Environm Sci, Climat Res Unit, Norwich, Norfolk, England..
Heidinger, Andrew K.
Univ Wisconsin Madison, NOAA NESDIS STAR, Madison, WI USA..
Hemming, D. L.
Met Off Hadley Ctr, Exeter, Devon, England.;Univ Birmingham, Birmingham Inst Forest Res, Birmingham, W Midlands, England..
Ho, Shu-peng (Ben)
NOAA NESDIS Ctr Satellite Applicat & Res, College Pk, MD USA..
Hubert, Daan
Royal Belgian Inst Space Aeron BIRA, Brussels, Belgium..
Hurst, Dale F.
NOAA OAR Earth Syst Res Labs, Boulder, CO USA.;Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA..
Huser, I.
Deutsch Wetterdienst, Offenbach, Germany..
Inness, Antje
European Ctr Medium Range Weather Forecasts, Reading, Berks, England..
Isaksen, K.
Norwegian Meteorol Inst, Oslo, Norway..
John, Viju
EUMETSAT, Darmstadt, Germany..
Jones, Philip D.
Univ East Anglia, Sch Environm Sci, Climat Res Unit, Norwich, Norfolk, England..
Kaiser, J. W.
Deutsch Wetterdienst, Offenbach, Germany..
Kelly, S.
Dundalk Inst Technol, Dundalk, Ireland..
Khaykin, S.
Sorbonne Univ, CNRS, LATMOS IPSL, UVSQ, Guyancourt, France..
Kidd, R.
Earth Observat Data Ctr GmbH, Vienna, Austria..
Kim, Hyungiun
Univ Tokyo, Inst Ind Sci, Tokyo, Japan..
Kipling, Z.
European Ctr Medium Range Weather Forecasts, Reading, Berks, England..
Kraemer, B. M.
IGB Leibniz Inst Freshwater Ecol & Inland Fisheri, Berlin, Germany..
Kratz, D. P.
NASA, Langley Res Ctr, Hampton, VA 23665 USA..
La Fuente, R. S.
Dundalk Inst Technol, Dundalk, Ireland..
Lan, Xin
NOAA OAR Earth Syst Res Labs, Boulder, CO USA.;Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA..
Lantz, Kathleen O.
NOAA OAR Earth Syst Res Lab, Boulder, CO USA..
Leblanc, T.
CALTECH, Jet Prop Lab, Wrightwood, CA USA..
Li, Bailing
NASA Goddard Space Flight Ctr, Hydrol Sci Lab, Greenbelt, MD USA.;Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA..
Loeb, Norman G.
NASA, Langley Res Ctr, Hampton, VA 23665 USA..
Long, Craig S.
NOAA NWS Natl Ctr Environm Predict, College Pk, MD USA..
Loyola, Diego
German Aerosp Ctr DLR Oberpfaffenhofen, Wessling, Germany..
Marszelewski, Wlodzimierz
Nicolaus Copernicus Univ, Dept Hydrol & Water Management, Torun, Poland..
Martens, B.
Univ Ghent, Hydro Climate Extremes Lab, Ghent, Belgium..
May, Linda
Ctr Ecol & Hydrol, Edinburgh, Midlothian, Scotland..
Mayer, Michael
European Ctr Medium Range Weather Forecasts, Reading, Berks, England.;Univ Vienna, Dept Meteorol & Geophys, Vienna, Austria..
McCabe, M. F.
King Abdullah Univ Sci & Technol, Div Biol & Environm Sci & Engn, Thuwal, Saudi Arabia..
McVicar, Tim R.
CSIRO Land & Water, Canberra, ACT, Australia.;Australian Res Council Ctr Excellence Climate Ext, Sydney, NSW, Australia..
Mears, Carl A.
Remote Sensing Syst, Santa Rosa, CA USA..
Menzel, W. Paul
Univ Wisconsin Madison, Space Sci & Engn Ctr, Madison, WI USA..
Merchant, Christopher J.
Univ Reading, Dept Meteorol, Reading, Berks, England.;Univ Reading, Natl Ctr Earth Observat, Reading, Berks, England..
Miller, Ben R.
NOAA OAR Earth Syst Res Labs, Boulder, CO USA.;Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA..
Miralles, Diego G.

Montzka, Stephen A.
NOAA OAR Earth Syst Res Labs, Boulder, CO USA..
Morice, Colin
Met Off Hadley Ctr, Exeter, Devon, England..
Muhle, Jens
Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA..
Myneni, R.
Boston Univ, Dept Earth & Environm, Boston, MA 02215 USA..
Nicolas, Julien P.
European Ctr Medium Range Weather Forecasts, Reading, Berks, England..
Noetzli, Jeannette
WSL Inst Snow & Avalanche Res SLF, Davos, Switzerland..
Osborn, Tim J.
Univ East Anglia, Sch Environm Sci, Climat Res Unit, Norwich, Norfolk, England..
Park, T.
NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.;Bay Area Environm Res Inst, Moffett Field, CA USA..
Pasik, A.
TU Wien Vienna Univ Technol, Dept Geodesy & Geoinformat, Vienna, Austria..
Paterson, Andrew M.
Ontario Minist Environm & Climate Change, Dorset Environm Sci Ctr, Dorset, ON, Canada..
Pelto, Mauri S.
Nichols Coll, Dudley, MA USA..
Perkins-Kirkpatrick, S.
Univ New South Wales, Sydney, NSW, Australia..
Petron, G.
Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA..
Phillips, C.
Univ Wisconsin Madison, Dept Atmospher & Ocean Sci, Madison, WI USA..
Pinty, Bernard
European Commiss, Joint Res Ctr, Ispra, Italy..
Po-Chedley, S.
Lawrence Livermore Natl Lab, Livermore, CA 94550 USA..
Polvani, L.
Columbia Univ, New York, NY USA..
Preimesberger, W.
TU Wien Vienna Univ Technol, Dept Geodesy & Geoinformat, Vienna, Austria..
Pulkkanen, M.
Finnish Environm Inst SYKE, Freshwater Ctr, Helsinki, Finland..
Randel, W. J.
Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA..
Remy, Samuel
UPMC, Inst Pierre Simon Laplace, CNRS, Paris, France..
Ricciardulli, L.

Richardson, A. D.
No Arizona Univ, Sch Informat Comp & Cyber Syst, Flagstaff, AZ 86011 USA.;No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA..
Rieger, L.
Univ Saskatchewan, Saskatoon, SK, Canada..
Robinson, David A.
Rutgers State Univ, Dept Geog, Piscataway, NJ USA..
Rodell, Matthew
NASA Goddard Space Flight Ctr, Hydrol Sci Lab, Greenbelt, MD USA..
Rosenlof, Karen H.
NOAA OAR Earth Syst Res Labs, Boulder, CO USA..
Roth, Chris
Univ Saskatchewan, Saskatoon, SK, Canada..
Rozanov, A.
Univ Bremen, Bremen, Germany..
Rusak, James A.
Ontario Minist Environm & Climate Change, Dorset Environm Sci Ctr, Dorset, ON, Canada..
Rusanovskaya, O.
Irkutsk State Univ, Inst Biol, Irkutsk, Russia..
Rutishauser, T.
Univ Bern, Inst Geog, Bern, Switzerland.;Univ Bern, Oeschger Ctr, Bern, Switzerland..
Sanchez-Lugo, Ahira
NOAA NESDIS Natl Ctr Environm Informat, Asheville, NC USA..
Sawaengphokhai, P.
Sci Syst & Applicat Inc, Hampton, VA USA..
Scanlon, T.
TU Wien Vienna Univ Technol, Dept Geodesy & Geoinformat, Vienna, Austria..
Schenzinger, Verena
Univ Vienna, Dept Meteorol & Geophys, Vienna, Austria..
Schladow, S. Geoffey
Univ Calif Davis, Tahoe Environm Res Ctr, Davis, CA 95616 USA..
Schlegel, R. W.
Woods Hole Oceanog Inst, Dept Phys Oceanog, Woods Hole, MA 02543 USA..
Schmid, Martin Eawag
Swiss Fed Inst Aquat Sci & Technol, Kastanienbaum, Switzerland..
Selkirk, H. B.
Univ Space Res Assoc, NASA Goddard Space Flight Ctr, Greenbelt, MD USA..
Sharma, S.
York Univ, Toronto, ON, Canada..
Shi, Lei
NOAA NESDIS, Natl Ctr Environm Informat, Asheville, NC USA..
Shimaraeva, S. V.
Irkutsk State Univ, Inst Biol, Irkutsk, Russia..
Silow, E. A.
Irkutsk State Univ, Inst Biol, Irkutsk, Russia..
Simmons, Adrian J.
European Ctr Medium Range Weather Forecasts, Reading, Berks, England..
Smith, C. A.
Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA..
Smith, Sharon L.
Nat Resources Canada, Geol Survey Canada, Ottawa, ON, Canada..
Soden, B. J.
Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Key Biscayne, FL USA..
Sofieva, Viktoria
Finnish Meteorol Inst, Helsinki, Finland..
Sparks, T. H.
Poznan Univ Life Sci, Poznan, Poland..
Stackhouse, Paul W., Jr.
NASA, Langley Res Ctr, Hampton, VA 23665 USA..
Stanitski, D. M.
NOAA OAR Earth Syst Res Labs, Boulder, CO USA..
Steinbrecht, Wolfgang
German Weather Serv DWD, Hohenpeissenberg, Germany..
Streletskiy, Dimitri A.
George Washington Univ, Dept Geog, Washington, DC USA..
Taha, G.
GESTAR, Columbia, MD USA..
Telg, Hagen

Thackeray, S. J.
Ctr Ecol & Hydrol, Lancaster, England..
Timofeyev, M. A.
Irkutsk State Univ, Inst Biol, Irkutsk, Russia..
Tourpali, Kleareti
Aristotle Univ Thessaloniki, Thessaloniki, Greece..
Tye, Mari R.
Natl Ctr Atmospher Res, Capac Ctr Climate & Weather Extremes, POB 3000, Boulder, CO 80307 USA..
van der A, Ronald J.
Royal Netherlands Meteorol Inst, De Bilt, Netherlands..
van der Schalie, Robin

van der Schrier, Gerard
Royal Netherlands Meteorol Inst, De Bilt, Netherlands..
van der Werf, Guido R.
Vrije Univ Amsterdam, Amsterdam, Netherlands..
Verburg, Piet
Natl Inst Water & Atmospher Res, Hamilton, New Zealand..
Vernier, Jean-Paul
NASA, Langley Res Ctr, Hampton, VA 23665 USA..
Vomel, Holger
Natl Ctr Atmospher Res, Earth Observing Lab, POB 3000, Boulder, CO 80307 USA..
Vose, Russell S.
NOAA NESDIS Natl Ctr Environm Informat, Asheville, NC USA..
Wang, Ray
Georgia Inst Technol, Atlanta, GA 30332 USA..
Watanabe, Shohei G.
Univ Calif Davis, Tahoe Environm Res Ctr, Davis, CA 95616 USA..
Weber, Mark
Univ Bremen, Bremen, Germany..
Weyhenmeyer, Gesa A.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Uppsala Univ, Dept Ecol & Genet Limnol, Uppsala, Sweden..
Wiese, David
CALTECH, Jet Prop Lab, Pasadena, CA USA..
Wilber, Anne C.
Sci Syst & Applicat Inc, Hampton, VA USA..
Wild, Jeanette D.
NOAA Climate Predict Ctr, College Pk, MD USA.;Univ Maryland, ESSIC, College Pk, MD 20742 USA..
Willett, K. M.
Met Off Hadley Ctr, Exeter, Devon, England..
Wong, Takmeng
NASA, Langley Res Ctr, Hampton, VA 23665 USA..
Woolway, R. Iestyn
Dundalk Inst Technol, Dundalk, Ireland..
Yin, Xungang
NOAA NESDIS Natl Ctr Environm Informat, ERT Inc, Asheville, NC USA..
Zhao, Lin
Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing, Peoples R China..
Zhao, Guanguo
Univ Illinois, Champaign, IL USA..
Zhou, Xinjia

Ziemke, Jerry R.
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.;Morgan State Univ, Goddard Earth Sci Technol & Res, Baltimore, MD 21239 USA..
Ziese, Markus
Deutsch Wetterdienst, Global Precipitat Climatol Ctr, Offenbach, Germany..
Global Climate: in State of the climate in 20192020In: Bulletin of The American Meteorological Society - (BAMS), ISSN 0003-0007, E-ISSN 1520-0477, Vol. 101, no 8, p. S17-S127Article in journal (Refereed)
Publisher's full text
5. State of the Climate in 2018Ades, M.
et al.

Weyhenmeyer, Gesa A.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Ziese, Markus
State of the Climate in 20182019In: Bulletin of The American Meteorological Society - (BAMS), ISSN 0003-0007, E-ISSN 1520-0477, Vol. 100, no 9, p. Si-S306Article in journal (Other academic)
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6. Sediment Phosphorus Extractants for Phosphorus-31 Nuclear Magnetic Resonance Analysis
Ahlgren, Joakim
et al.

Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry.

De Brabandere, Heidi
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry.
Reitzel, Kasper

Rydin, Emil
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Gogoll, Adolf
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Biochemistry and Organic Chemistry.
Waldebäck, Monica
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry.
Sediment Phosphorus Extractants for Phosphorus-31 Nuclear Magnetic Resonance Analysis: A Quantitative Evaluation2007In: Journal of Environmental Quality, ISSN 0047-2425, E-ISSN 1537-2537, Vol. 36, no 3, p. 892-898Article in journal (Refereed)
Abstract [en]
The influence of pre-extractant, extractant, and post-extractanton total extracted amounts of P and organic P compound groupsmeasured with ³¹P nuclear magnetic resonance (³¹P-NMR) in lacustrinesediment was examined. The main extractants investigated weresodium hydroxide (NaOH) and sodium hydroxide ethylenediaminetetraaceticacid (NaOH-EDTA) with bicarbonate buffered dithionite (BD) orEDTA as pre-extractants. Post extractions were conducted usingeither NaOH or NaOH-EDTA, depending on the main extractant.Results showed that the most efficient combination of extractantsfor total P yield was NaOH with EDTA as pre-extractant, yieldingalmost 50% more than the second best procedure. The P compoundgroups varying the most between the different extraction procedureswere polyphosphates and pyrophosphates. NaOH with BD as pre-extractantwas the most efficient combination for these compound groups.
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7. Release of Organic P Forms from Lake Sediments
Ahlgren, Joakim
et al.

Institute of Biology, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.

Reitzel, Kasper
Institute of Biology, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.
De Brabandere, Heidi
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Analytical Chemistry.
Gogoll, Adolf
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Biochemistry and Organic Chemistry, Organic Chemistry I.
Rydin, Emil
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Release of Organic P Forms from Lake Sediments2011In: Water Research, ISSN 0043-1354, E-ISSN 1879-2448, Vol. 45, no 2, p. 565-572Article in journal (Refereed)
Abstract [en]
The effects of different physical and chemical conditions on the decomposition and release of organic and inorganic P compound groups from the sediment of Lake Erken were investigated in a series of laboratory experiments. Conditions investigated were temperature, oxygen level, and the effects of additions of carbon substrate (glucose) and poison (formalin). The effects on the P compound groups were determined by measurements with ³¹P NMR before and after the experiments, as well as analysis of P in efﬂuent water throughout the experiment. Phosphate analysis of the efﬂuent water showed that oxygen level was the most inﬂuential in terms of release rates, with the sediments under anoxic conditions generally releasing more phosphate than the other treatments. ³¹P NMR showed that the various treatments did inﬂuence the P compound group composition of the sediment. In particular, the addition of glucose led to a decrease in orthophosphate and polyphosphate while the addition of formalin led to a decrease in phosphorus lipids, DNAphosphate and polyphosphate. Oxic conditions resulted in an increase in polyphosphates, and anoxic conditions in a decrease in these. Temperature did not seem to affect the composition signiﬁcantly.
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8. Interactions of Freshwater Cyanobacteria with Bacterial Antagonists
Ahmed Osman, Omneya
et al.

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Uppsala University, Science for Life Laboratory, SciLifeLab.

Beier, Sara
Leibniz Inst Balt Sea Res, Warnemunde, Germany..
Grabherr, Manfred
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
Bertilsson, Stefan
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Uppsala University, Science for Life Laboratory, SciLifeLab.
Interactions of Freshwater Cyanobacteria with Bacterial Antagonists2017In: Applied and Environmental Microbiology, ISSN 0099-2240, E-ISSN 1098-5336, Vol. 83, no 7, article id UNSP e02634Article in journal (Refereed)
Abstract [en]
Cyanobacterial and algal mass development, or blooms, have severe effects on freshwater and marine systems around the world. Many of these phototrophs produce a variety of potent toxins, contribute to oxygen depletion, and affect water quality in several ways. Coexisting antagonists, such as cyanolytic bacteria, hold the potential to suppress, or even terminate, such blooms, yet the nature of this interaction is not well studied. We isolated 31 cyanolytic bacteria affiliated with the genera Pseudomonas, Stenotrophomonas, Acinetobacter, and Delftia from three eutrophic freshwater lakes in Sweden and selected four phylogenetically diverse bacterial strains with strong-to-moderate lytic activity. To characterize their functional responses to the presence of cyanobacteria, we performed RNA sequencing (RNA-Seq) experiments on coculture incubations, with an initial predator-prey ratio of 1: 1. Genes involved in central cellular pathways, stress-related heat or cold shock proteins, and antitoxin genes were highly expressed in both heterotrophs and cyanobacteria. Heterotrophs in coculture expressed genes involved in cell motility, signal transduction, and putative lytic activity. L, D-Transpeptidase was the only significantly upregulated lytic gene in Stenotrophomonas rhizophila EK20. Heterotrophs also shifted their central metabolism from the tricarboxylic acid cycle to the glyoxylate shunt. Concurrently, cyanobacteria clearly show contrasting antagonistic interactions with the four tested heterotrophic strains, which is also reflected in the physical attachment to their cells. In conclusion, antagonistic interactions with cyanobacteria were initiated within 24 h, and expression profiles suggest varied responses for the different cyanobacteria and studied cyanolytes. IMPORTANCE Here, we present how gene expression profiles can be used to reveal interactions between bloom-forming freshwater cyanobacteria and antagonistic heterotrophic bacteria. Species-specific responses in both heterotrophs and cyanobacteria were identified. The study contributes to a better understanding of the interspecies cellular interactions underpinning the persistence and collapse of cyanobacterial blooms.
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9. First record of West Nile Virus detection inside wild mosquitoes in Khartoum capital of Sudan using PCRAli El Hadi Mohamed, Rania
et al.

Abdelgadir, Deena M.

Bashab, Hind M.

Al-Shuraym, Laila A.

Sfouq Aleanizy, Fadilah

Alqahtani, Fulwah Y.

Ahmed Al-Keridis, Lamya

Mohamed, Nahla
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Princess Nourah Bint Abdurrahman University.
First record of West Nile Virus detection inside wild mosquitoes in Khartoum capital of Sudan using PCR2020In: Saudi Journal of Biological Sciences, ISSN 1319-562X, Vol. 27, no 12, p. 3359-3364Article in journal (Refereed)
Abstract [en]
This study aimed to explore the presence of West Nile Virus (WNV) inside four species of mosquitoes: Culex univittatus (Theobald), Culex quinquefasciatus (Say) Aedes vittatus (Bigot) and Aedes vexans (Meigen). Adult wild mosquitoes were collected from different sites: Soba West, Hellat Kuku, Shambat, and Khartoum North Central Live Stock Market (KCLM). Surveys were carried out at Khartoum State during two phases: pre to the rainy season and post to the rainy season. Mosquito specimens were identified using classical keys then preserved at −80 °C freezer for two weeks till the virus examination using polymerase chain reaction (PCR) were carried out. WNV has been detected inside the three species of mosquitoes: A. vexans, C. univittatus, and C. quinquefasciatus. The species were collected from Hellat Kuku, (Shambat and Hellat Kuku), and (Shambat and KCLM) respectively. Two species of mosquitoes were positive for the virus: C. quinquefasciatus and C. univittatus. Positive results for the virus during the first phase of the study; males of C. quinquefasciatus and C. univittatus collected during the second phase of the study were also tested for the existence of the virus and they were positive. For our knowledge this study represents first record of WNV inside wild mosquitoes in Sudan. PCR technique provided reliable information because specific primer-probe sets were used for the detection of the virus. Extra studies are required to incriminate these species of mosquitoes as potential vectors of WNV.
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10. The role of photomineralization for CO<sub>2</sub> emissions in boreal lakes along a gradient of dissolved organic matter
Allesson, Lina
et al.

Univ Oslo, Dept Biosci, Oslo, Norway..

Koehler, Birgit
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Thrane, Jan-Erik
Norwegian Inst Water Res, Oslo, Norway..
Andersen, Tom
Univ Oslo, Dept Biosci, Oslo, Norway..
Hessen, Dag O.
Univ Oslo, Dept Biosci, Oslo, Norway..
The role of photomineralization for CO₂ emissions in boreal lakes along a gradient of dissolved organic matter2021In: Limnology and Oceanography, ISSN 0024-3590, E-ISSN 1939-5590, Vol. 66, no 1, p. 158-170Article in journal (Refereed)
Abstract [en]
Many boreal lakes are experiencing an increase in concentrations of terrestrially derived dissolved organic matter (DOM)-a process commonly labeled "browning." Browning affects microbial and photochemical mineralization of DOM, and causes increased light attenuation and hence reduced photosynthesis. Consequently, browning regulates lake heterotrophy and net CO2-efflux to the atmosphere. Climate and environmental change makes ecological forecasting and global carbon cycle modeling increasingly important. A proper understanding of the magnitude and relative contribution from CO2-generating processes for lakes ranging in dissolve organic carbon (DOC) concentrations is therefore crucial for constraining models and forecasts. Here, we aim to study the relative contribution of photomineralization to total CO(2)production in 70 Scandinavian lakes along an ecosystem gradient of DOC concentration. We combined spectral data from the lakes with regression estimates between optical parameters and wavelength specific photochemical reactivity to estimate rates of photochemical DOC mineralization. Further, we estimated total in-lake CO2-production and efflux from lake chemical and physical data. Photochemical mineralization corresponded on average to 9% +/- 1% of the total CO2-evasion, with the highest contribution in clear lakes. The calculated relative contribution of photochemical mineralization to total in-lake CO2-production was about 3% +/- 0.2% in all lakes. Although lakes differed substantially in color, depth-integrated photomineralization estimates were similar in all lakes, regardless of DOC concentrations. DOC concentrations were positively related to CO2-efflux and total in-lake CO2-production but negatively related to primary production. We conclude that enhanced rates of photochemical mineralization will be a minor contributor to increased heterotrophy under increased browning.
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11. CorrespondenceAlmeida, Rafael M.
et al.

Barros, Nathan

Cole, Jonathan J.

Tranvik, Lars
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Roland, Fabio
Correspondence: Emissions from Amazonian dams2013In: Nature Climate Change, ISSN 1758-678X, E-ISSN 1758-6798, Vol. 3, no 12, p. 1005-1005Article in journal (Other academic)
Publisher's full text
12. Emissions from Amazonian damsAlmeida, Rafael M.
et al.

Barros, Nathan

Cole, Jonathan J.

Tranvik, Lars
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Roland, Fábio
Emissions from Amazonian dams2013In: Nature Climate Change, ISSN 1758-678X, E-ISSN 1758-6798, Vol. 3, no 12, p. 1005-1005Article in journal (Refereed)
Publisher's full text
13. High Primary Production Contrasts with Intense Carbon Emission in a Eutrophic Tropical Reservoir
Almeida, Rafael M.
et al.

Univ Fed Juiz de Fora, Inst Ciencias Biol, Dept Biol, Aquat Ecol Lab, Juiz De Fora, Brazil..

Nobrega, Gabriel N.
Univ Sao Paulo, Escola Super Agr Luiz de Queiroz, Dept Ciencia Solo, Piracicaba, Brazil..
Junger, Pedro C.
Univ Fed Rio de Janeiro, Lab Limnol, Rio De Janeiro, Brazil..
Figueiredo, Aline V.
Univ Fed Rio Grande do Norte, Lab Water Resources & Environm Sanitat, BR-59072970 Natal, RN, Brazil..
Andrade, Anizio S.
Univ Fed Rio Grande do Norte, Lab Limnol, BR-59072970 Natal, RN, Brazil..
de Moura, Caroline G. B.
Univ Fed Rio Grande do Norte, Lab Limnol, BR-59072970 Natal, RN, Brazil..
Tonetta, Denise
Univ Fed Santa Catarina, Lab Freshwater Ecol, Florianopolis, SC, Brazil..
Oliveira, Ernandes S., Jr.
Radboud Univ Nijmegen, Dept Aquat Ecol & Environm Biol, Inst Water & Wetland Res, NL-6525 ED Nijmegen, Netherlands..
Araujo, Fabiana
Univ Fed Rio Grande do Norte, Lab Water Resources & Environm Sanitat, BR-59072970 Natal, RN, Brazil..
Rust, Felipe
Univ Fed Juiz de Fora, Inst Ciencias Biol, Dept Biol, Aquat Ecol Lab, Juiz De Fora, Brazil..
Pineiro-Guerra, Juan M.
Univ Republica, Dept Ecol Teor & Aplicada, Ctr Univ Reg Este, Montevideo, Uruguay.;Univ Republica, Fac Ciencias, Montevideo, Uruguay..
Mendonca, Jurandir R., Jr.
Univ Fed Rio Grande do Norte, Lab Water Resources & Environm Sanitat, BR-59072970 Natal, RN, Brazil..
Medeiros, Leonardo R.
Univ Fed Rio Grande do Norte, Lab Limnol, BR-59072970 Natal, RN, Brazil..
Pinheiro, Lorena
Univ Fed Estado Rio de Janeiro, Dept Ciencias Nat, Rio De Janeiro, Brazil..
Miranda, Marcela
Univ Fed Juiz de Fora, Inst Ciencias Biol, Dept Biol, Aquat Ecol Lab, Juiz De Fora, Brazil..
Costa, Mariana R. A.
Univ Fed Rio Grande do Norte, Lab Water Resources & Environm Sanitat, BR-59072970 Natal, RN, Brazil..
Melo, Michaela L.
Univ Fed Sao Carlos, Lab Microbial Proc & Biodivers, BR-13560 Sao Carlos, SP, Brazil..
Nobre, Regina L. G.
Univ Fed Rio Grande do Norte, Lab Limnol, BR-59072970 Natal, RN, Brazil..
Benevides, Thiago
Univ Fed Rio de Janeiro, Lab Limnol, Rio De Janeiro, Brazil..
Roland, Fabio
Univ Fed Juiz de Fora, Inst Ciencias Biol, Dept Biol, Aquat Ecol Lab, Juiz De Fora, Brazil..
de Klein, Jeroen
Wageningen Univ, Aquat Ecol & Environm Sci, NL-6700 AP Wageningen, Netherlands..
Barros, Nathan O.
Univ Fed Juiz de Fora, Inst Ciencias Biol, Dept Biol, Aquat Ecol Lab, Juiz De Fora, Brazil..
Mendonca, Raquel
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Univ Fed Juiz de Fora, Inst Ciencias Biol, Dept Biol, Aquat Ecol Lab, Juiz De Fora, Brazil.
Becker, Vanessa
Univ Fed Rio Grande do Norte, Lab Water Resources & Environm Sanitat, BR-59072970 Natal, RN, Brazil..
Huszar, Veral. M.
Univ Fed Rio de Janeiro, Museu Nacl, Lab Ficol, Rio De Janeiro, Brazil..
Kosten, Sarian
Radboud Univ Nijmegen, Dept Aquat Ecol & Environm Biol, Inst Water & Wetland Res, NL-6525 ED Nijmegen, Netherlands..
High Primary Production Contrasts with Intense Carbon Emission in a Eutrophic Tropical Reservoir2016In: Frontiers in Microbiology, E-ISSN 1664-302X, Vol. 7, article id 717Article in journal (Refereed)
Abstract [en]
Recent studies from temperate lakes indicate that eutrophic systems tend to emit less carbon dioxide (Co-2) and bury more organic carbon (OC) than oligotrophic ones, rendering them CO2 sinks in some cases. However, the scarcity of data from tropical systems is critical for a complete understanding of the interplay between eutrophication and aquatic carbon (C) fluxes in warm waters. We test the hypothesis that a warm eutrophic system is a source of both CO2 and CH4 to the atmosphere, and that atmospheric emissions are larger than the burial of OC in sediments. This hypothesis was based on the following assumptions: (i) OC mineralization rates are high in warm water systems, so that water column CO2 production overrides the high C uptake by primary producers, and (ii) increasing trophic status creates favorable conditions for CH4 production. We measured water-air and sediment-water CO2 fluxes, CH4 diffusion, ebullition and oxidation, net ecosystem production (NEP) and sediment OC burial during the dry season in a eutrophic reservoir in the semiarid northeastern Brazil. The reservoir was stratified during daytime and mixed during nighttime. In spite of the high rates of primary production (4858 +/- 934 mg C m(-2) d(-1)), net heterotrophy was prevalent due to high ecosystem respiration (5209 +/- 992 mg C m(-2) d(-1)). Consequently, the reservoir was a source of atmospheric CO2 (518 +/- 182 mg C m(-2) d(-1)). In addition, the reservoir was a source of ebullitive (17 +/- 10 mg C m(-2) d(-1)) and diffusive CH4 (11 +/- 6 mg C m(-2) d(-1)). OC sedimentation was high (1162 mg C m(-2) d(-1)), but our results suggest that the majority of it is mineralized to CO2 (722 +/- 182 mg C m(-2) d(-1)) rather than buried as OC (440 mg C m(-2) d(-1)). Although temporally resolved data would render our findings more conclusive, our results suggest that despite being a primary production and OC burial hotspot, the tropical eutrophic system studied here was a stronger CO2 and CH4 source than a C sink, mainly because of high rates of OC mineralization in the water column and sediments.
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14. Carbon dioxide emission from drawdown areas of a Brazilian reservoir is linked to surrounding land cover
Almeida, Rafael M.
et al.

Cornell University, USA.

Paranaíba, José R.
Federal University of Juiz de Fora, Brazil.
Barbosa, Ícaro
Federal University of Juiz de Fora, Brazil.
Sobek, Sebastian
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Kosten, Sarian
University Nijmegen, The Netherlands.
Linkhorst, Annika
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Mendonça, Raquel
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Federal University of Juiz de Fora, Brazil.
Quadra, Gabrielle
Federal University of Juiz de Fora, Brazil.
Roland, Fábio
Federal University of Juiz de Fora, Brazil.
Barros, Nathan
Federal University of Juiz de Fora, Brazil.
Carbon dioxide emission from drawdown areas of a Brazilian reservoir is linked to surrounding land cover2019In: Aquatic Sciences, ISSN 1015-1621, E-ISSN 1420-9055, Vol. 81, article id 68Article in journal (Refereed)
Abstract [en]
Reservoir sediments exposed to air due to water level fluctuations are strong sources of atmospheric carbon dioxide (CO₂). The spatial variability of CO₂ fluxes from these drawdown areas are still poorly understood. In a reservoir in southeastern Brazil, we investigated whether CO₂ emissions from drawdown areas vary as a function of neighboring land cover types and assessed the magnitude of CO₂ fluxes from drawdown areas in relation to nearby water surface. Exposed sediments near forestland (average = 2733 mg C m⁻² day⁻¹) emitted more CO₂ than exposed sediments near grassland (average = 1261 mg C m⁻² day⁻¹), congruent with a difference in organic matter content between areas adjacent to forestland (average = 12.2%) and grassland (average = 10.9%). Moisture also had a significant effect on CO₂ emission, with dry exposed sediments (average water content: 13.7%) emitting on average 2.5 times more CO₂ than wet exposed sediments (average water content: 23.5%). We carried out a systematic comparison with data from the literature, which indicates that CO2 efflux from drawdown areas globally is about an order of magnitude higher than CO₂ efflux from adjacent water surfaces, and within the range of CO₂ efflux from terrestrial soils. Our findings suggest that emissions from exposed sediments may vary substantially in space, possibly related to organic matter supply from uphill vegetation, and that drawdown areas play a disproportionately important role in total reservoir CO₂ emissions with respect to the area they cover.
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15. Phosphorus transport by the largest Amazon tributary (Madeira River, Brazil) and its sensitivity to precipitation and dammingAlmeida, Rafael M.
et al.

Tranvik, Lars
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Huszar, Vera L. M.

Sobek, Sebastian
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Mendonca, Raquel
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Barros, Nathan

Boemer, Gina

Arantes, Joao Durval, Jr.

Roland, Fabio
Phosphorus transport by the largest Amazon tributary (Madeira River, Brazil) and its sensitivity to precipitation and damming2015In: Inland Waters, ISSN 2044-2041, E-ISSN 2044-205X, Vol. 5, no 3, p. 275-282Article in journal (Refereed)
Abstract [en]
Originating in the Bolivian and Peruvian Andes, the Madeira River is the largest tributary of the Amazon River in terms of discharge. Andean rivers transport large quantities of nutrient-rich suspended sediments and are the main source of phosphorus (P) to the Amazon basin. Here, we show the seasonal variability in concentrations and loads of different P forms (total, particulate, dissolved, and soluble reactive P) in the Madeira River through 8 field campaigns between 2009 and 2011. At our sampling reach in Porto Velho, Brazil, the Madeira River transports similar to 177-247 Gg yr(-1) of P, mostly linked to particles (similar to 85%). Concentrations and loads of all P forms have a maximum at rising waters and a minimum at low waters. Total P concentrations were substantially higher at a given discharge at rising water than at a similar discharge at falling water. The peak of P concentrations matched the peak of rainfall in the upper basin, suggesting an influence of precipitation-driven erosion. Projected precipitation increase in the eastern slopes of the Andes could enhance sediment yield and hence the P transport in the Madeira River. Because most of the P is particulate, however, we hypothesize that the planned proliferation of hydropower dams in the Madeira basin has the potential to reduce P loads substantially, possibly counteracting any precipitation-related increases. In the long term, this could be detrimental to highly productive downstream floodplain forests that are seasonally fertilized with P-rich deposits.
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16. Genomes from uncultivated prokaryotes
Alneberg, Johannes
et al.

KTH Royal Inst Technol, Sch Engn Sci Chem Biotechnol & Hlth, Dept Gene Technol, Sci Life Lab, Stockholm, Sweden.

Karlsson, Christofer M. G.
Linnaeus Univ, Ctr Ecol & Evolut Microbial Model Syst, EEMiS, Kalmar, Sweden.
Divne, Anna-Maria
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular Evolution. Uppsala University, Science for Life Laboratory, SciLifeLab.
Bergin, Claudia
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular Evolution. Uppsala University, Science for Life Laboratory, SciLifeLab.
Homa, Felix
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular Evolution. Uppsala University, Science for Life Laboratory, SciLifeLab.
Lindh, Markus V.
Linnaeus Univ, Ctr Ecol & Evolut Microbial Model Syst, EEMiS, Kalmar, Sweden;Lund Univ, Dept Biol, Lund, Sweden.
Hugerth, Luisa W.
KTH Royal Inst Technol, Sch Engn Sci Chem Biotechnol & Hlth, Dept Gene Technol, Sci Life Lab, Stockholm, Sweden;Karolinska Inst, Ctr Translat Microbiome Res, Dept Mol Tumour & Cell Biol, Sci Life Lab, Solna, Sweden.
Ettema, Thijs J. G.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular Evolution. Uppsala University, Science for Life Laboratory, SciLifeLab.
Bertilsson, Stefan
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Uppsala University, Science for Life Laboratory, SciLifeLab.
Andersson, Anders F.
KTH Royal Inst Technol, Sch Engn Sci Chem Biotechnol & Hlth, Dept Gene Technol, Sci Life Lab, Stockholm, Sweden.
Pinhassi, Jarone
Linnaeus Univ, Ctr Ecol & Evolut Microbial Model Syst, EEMiS, Kalmar, Sweden.
Genomes from uncultivated prokaryotes: a comparison of metagenome-assembled and single-amplified genomes2018In: Microbiome, E-ISSN 2049-2618, Vol. 6, article id 173Article in journal (Refereed)
Abstract [en]
Background: Prokaryotes dominate the biosphere and regulate biogeochemical processes essential to all life. Yet, our knowledge about their biology is for the most part limited to the minority that has been successfully cultured. Molecular techniques now allow for obtaining genome sequences of uncultivated prokaryotic taxa, facilitating in-depth analyses that may ultimately improve our understanding of these key organisms.
Results: We compared results from two culture-independent strategies for recovering bacterial genomes: single-amplified genomes and metagenome-assembled genomes. Single-amplified genomes were obtained from samples collected at an offshore station in the Baltic Sea Proper and compared to previously obtained metagenome-assembled genomes from a time series at the same station. Among 16 single-amplified genomes analyzed, seven were found to match metagenome-assembled genomes, affiliated with a diverse set of taxa. Notably, genome pairs between the two approaches were nearly identical (average 99.51% sequence identity; range 98.77-99.84%) across overlapping regions (30-80% of each genome). Within matching pairs, the single-amplified genomes were consistently smaller and less complete, whereas the genetic functional profiles were maintained. For the metagenome-assembled genomes, only on average 3.6% of the bases were estimated to be missing from the genomes due to wrongly binned contigs.
Conclusions: The strong agreement between the single-amplified and metagenome-assembled genomes emphasizes that both methods generate accurate genome information from uncultivated bacteria. Importantly, this implies that the research questions and the available resources are allowed to determine the selection of genomics approach for microbiome studies.
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17. Changes in marine prokaryotic community induced by varying types of dissolved organic matter and subsequent grazing pressure
Alonso-Saez, Laura
et al.

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.

Unanue, Marian

Latatu, Ainhoa

Azua, Inigo

Ayo, Begona

Artolozaga, Itxaso

Iriberri, Juan
Changes in marine prokaryotic community induced by varying types of dissolved organic matter and subsequent grazing pressure2009In: Journal of Plankton Research, ISSN 0142-7873, E-ISSN 1464-3774, Vol. 31, no 11, p. 1373-1383Article in journal (Refereed)
Abstract [en]
We analysed changes in the abundance, biomass, activity and composition of coastal marine prokaryotic communities after the addition of organic substrates, such as glucose, leucine and yeast extract, and the effect of grazing pressure exerted by nanoflagellates. The addition of a carbon source (i.e. glucose) promoted the growth of Gammaproteobacteria, while a combined source of C and N (i.e. leucine) favoured the development of Alphaproteobacteria. The addition of yeast extract, a complex substrate rich in N and growth factors, promoted the proliferation of Alphaproteobacteria and Gammaproteobacteria. Grazing pressure exerted by nanoflagellates produced marked differences on the size structure of the prokaryotic biomass. A pronounced tendency to filamentation and aggregation was observed in the glucose treatment, while in the case of yeast extract, small and mainly freely dispersed prokaryotes were maintained throughout the incubations. Thus, the final community in the yeast extract treatment showed a high percentage of edible biomass, while an important fraction of potentially grazing-resistant prokaryotes (more than 50% of total prokaryotic biomass) was detected in the microcosms enriched with glucose. These results suggest a marked effect of DOM sources on the development of grazing-resistant prokaryotes.
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18. Factors controlling the year-round variability in carbon flux through bacteria in a coastal marine system
Alonso-Saez, Laura
et al.

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.

Vazquez-Dominguez, Evaristo

Cardelus, Clara

Pinhassi, Jarone

Sala, M. Montserrat

Lekunberri, Itziar

Balague, Vanessa

Vila-Costa, Maria

Unrein, Fernando

Massana, Ramon

Simo, Rafel

Gasol, Josep M.
Factors controlling the year-round variability in carbon flux through bacteria in a coastal marine system2008In: Ecosystems (New York. Print), ISSN 1432-9840, E-ISSN 1435-0629, Vol. 11, no 3, p. 397-409Article in journal (Refereed)
Abstract [en]
Data from several years of monthly samplings are combined with a 1-year detailed study of carbon flux through bacteria at a NW Mediterranean coastal site to delineate the bacterial role in carbon use and to assess whether environmental factors or bacterial assemblage composition affected the in situ rates of bacterial carbon processing. Leucine (Leu) uptake rates [as an estimate of bacterial heterotrophic production (BHP)] showed high interannual variability but, on average, lower values were found in winter (around 50 pM Leu(-1) h(-1)) as compared to summer (around 150 pM Leu(-1) h(-1)). Leu-to-carbon conversion factors ranged from 0.9 to 3.6 kgC mol Leu(-1), with generally higher values in winter. Leu uptake was only weakly correlated to temperature, and over a full-year cycle (in 2003), Leu uptake peaked concomitantly with winter chlorophyll a (Chl a) maxima, and in periods of high ectoenzyme activities in spring and summer. This suggests that both low molecular weight dissolved organic matter (DOM) released by phytoplankton, and high molecular weight DOM in periods of low Chl a, can enhance BHP. Bacterial respiration (BR, range 7-48 mu g C l(-1) d(-1)) was not correlated to BHP or temperature, but was significantly correlated to DOC concentration. Total bacterial carbon demand (BHP plus BR) was only met by dissolved organic carbon produced by phytoplankton during the winter period. We measured bacterial growth efficiencies by the short-term and the long-term methods and they ranged from 3 to 42%, increasing during the phytoplankton blooms in winter (during the Chl a peaks), and in spring. Changes in bacterioplankton assemblage structure (as depicted by denaturing gradient gel electrophoresis fingerprinting) were not coupled to changes in ecosystem functioning, at least in bacterial carbon use.
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19. Winter bloom of a rare betaproteobacteriurn in the Arctic Ocean
Alonso-Saez, Laura
et al.

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Uppsala University, Science for Life Laboratory, SciLifeLab.

Zeder, Michael

Harding, Tommy

Pernthaler, Jakob

Lovejoy, Connie

Bertilsson, Stefan
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Uppsala University, Science for Life Laboratory, SciLifeLab.
Pedros-Alio, Carlos
Winter bloom of a rare betaproteobacteriurn in the Arctic Ocean2014In: Frontiers in Microbiology, E-ISSN 1664-302X, Vol. 5, p. 425-Article in journal (Refereed)
Abstract [en]
Extremely low abundance microorganisms (members of the "rare biosphere") are believed to include dormant taxa, which can sporadically become abundant following environmental triggers. Yet, microbial transitions from rare to abundant have seldom been captured in situ, and it is uncertain how widespread these transitions are. A bloom of a single ribotype (>= 99% similarity in the 16S ribosomal RNA gene) of a widespread betaproteobacterium (Janthinobacterium sp.) occurred over 2 weeks in Arctic marine waters. The Janthinobactenum population was not detected microscopically in situ in January and early February, but suddenly appeared in the water column thereafter, eventually accounting for up to 20% of bacterial cells in mid February. During the bloom, this bacterium was detected at open water sites up to 50 km apart, being abundant down to more than 300 m. This event is one of the largest monospecific bacterial blooms reported in polar oceans. It is also remarkable because Betaproteobacteria are typically found only in low abundance in marine environments. In particular, Janthinobacterium were known from non-marine habitats and had previously been detected only in the rare biosphere of seawater samples, including the polar oceans. The Arctic Janthinobacterium formed mucilagenous monolayer aggregates after short (ca. 8 h) incubations, suggesting that biofilm formation may play a role in maintaining rare bacteria in pelagic marine environments. The spontaneous mass occurrence of this opportunistic rare taxon in polar waters during the energy-limited season extends current knowledge of how and when microbial transitions between rare and abundant occur in the ocean.
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20. High archaeal diversity in Antarctic circumpolar deep waters
Alonso-Sáez, Laura
et al.

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.

Andersson, Anders
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Heinrich, Friederike
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Bertilsson, Stefan
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
High archaeal diversity in Antarctic circumpolar deep waters2011In: Environmental Microbiology Reports, E-ISSN 1758-2229, Vol. 3, no 6, p. 689-697Article in journal (Refereed)
Abstract [en]
Archaea are abundant in polar oceans but important ecological aspects of this group remain enigmatic, such as patterns of diversity and biogeography. Here, we provide the first high-throughput sequencing population study of Antarctic archaea based on 198 bp fragments of the 16S rRNA gene, targeting different water masses across the Amundsen and Ross Seas. Our results suggest that archaeal community composition is strongly shaped by hydrography and significantly influenced by environmental parameters. Archaeal communities from cold continental shelf waters (SW) of the Ross Sea were similar over depth with a single thaumarchaeal phylotype dominating Antarctic surface waters (AASW) and deeper SW (contributing up to 80% of reads). However, this phylotype contributed less than 8% of reads in circumpolar deep waters (CDW). A related thaumarchaeon (98% identity) was almost absent in AASW, but contributed up to 30% of reads in CDW, suggesting ecological differentiation of closely related phylotypes. Significantly higher archaeal richness and evenness were observed in CDW, with Shannon indices (c. 2.5) twice as high as for AASW, and high contributions of Group II Euryarchaeota. Based on these results, we suggest that CDW is a hotspot of archaeal diversity and may play an important role in the dispersal of archaeal phylotypes to other oceanic water masses.
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21. Role for urea in nitrification by polar marine Archaea
Alonso-Sáez, Laura
et al.

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.

Waller, A. S.

Mende, D. R.

Bakker, K.

Farnelid, H.

Yager, P. L.

Lovejoy, C.

Tremblay, J. -E

Potvin, M.

Heinrich, Friederike
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Estrada, M.

Riemann, L.

Bork, P.

Pedrós-Alió, C.

Bertilsson, Stefan
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Role for urea in nitrification by polar marine Archaea2012In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 109, no 44, p. 17989-17994Article in journal (Refereed)
Abstract [en]
Despite the high abundance of Archaea in the global ocean, their metabolism and biogeochemical roles remain largely unresolved. We investigated the population dynamics and metabolic activity of Thaumarchaeota in polar environments, where these microorganisms are particularly abundant and exhibit seasonal growth. Thaumarchaeota were more abundant in deep Arctic and Antarctic waters and grew throughout the winter at surface and deeper Arctic halocline waters. However, in situ single-cell activity measurements revealed a low activity of this group in the uptake of both leucine and bicarbonate (<5% Thaumarchaeota cells active), which is inconsistent with known heterotrophic and autotrophic thaumarchaeal lifestyles. These results suggested the existence of alternative sources of carbon and energy. Our analysis of an environmental metagenome from the Arctic winter revealed that Thaumarchaeota had pathways for ammonia oxidation and, unexpectedly, an abundance of genes involved in urea transport and degradation. Quantitative PCR analysis confirmed that most polar Thaumarchaeota had the potential to oxidize ammonia, and a large fraction of them had urease genes, enabling the use of urea to fuel nitrification. Thaumarchaeota from Arctic deep waters had a higher abundance of urease genes than those near the surface suggesting genetic differences between closely related archaeal populations. In situ measurements of urea uptake and concentration in Arctic waters showed that small-sized prokaryotes incorporated the carbon from urea, and the availability of urea was often higher than that of ammonium. Therefore, the degradation of urea may be a relevant pathway for Thaumarchaeota and other microorganisms exposed to the low-energy conditions of dark polar waters.
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22. Evaluation of Climate Model Performance for Water Supply Studies
Anandhi, Aavudai
et al.

Florida A&M Univ, Coll Agr & Food Sci, Biol Syst Engn, Tallahassee, FL 32307 USA;Florida A&M Univ, Coll Agr & Food Sci, Ctr Water Resources, Tallahassee, FL 32307 USA.

Pierson, Don
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Frei, Allan
CUNY, Hunter Coll, Dept Geog, New York, NY 10065 USA;CUNY, CUNY Inst Sustainable Cities, New York, NY 10065 USA.
Evaluation of Climate Model Performance for Water Supply Studies: Case Study for New York City2019In: Journal of water resources planning and management, ISSN 0733-9496, E-ISSN 1943-5452, Vol. 145, no 8, article id 06019006Article in journal (Refereed)
Abstract [en]
Evaluating the suitability of data from global climate models (GCMs) for use as input in water supply models is an important step in the larger task of evaluating the effects of climate change on water resources management such as that of water supply operations. The purpose of this paper is to present the process by which GCMs were evaluated and incorporated into the New York City (NYC) water supply's planning activities and to provide conclusions regarding the overall effectiveness of the ranking procedure used in the evaluation. A suite of GCMs participating in Phase 3 of the Coupled Model Intercomparison Project (CMIP3) were evaluated for use in climate change projections in the watersheds of the NYC water supply that provide 90% of the water consumed by NYC. GCM data were aggregated using the seven land-grid points surrounding NYC watersheds, and these data with a daily timestep were evaluated seasonally using probability-based skill scores for various combinations of five meteorological variables (precipitation, average, maximum and minimum temperatures, and wind speed). These are the key variables for the NYC water supply because they affect the timing and magnitude of water, energy, sediment, and nutrient fluxes into the reservoirs as well as in simulating watershed hydrology and reservoir hydrodynamics. We attempted to choose a subset of GCMs based on the average of several skill metrics that compared baseline (20C3M) GCM results to observations. Skill metrics for the study indicate that the skill in simulating the frequency distributions of measured data is highest for temperature and lowest for wind. However, our attempts to identify the best model or subgroup of models were not successful because we found that no single model performs best when considering all of the variables and seasons.
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23. Replication-biased genome organisation in the crenarchaeon Sulfolobus
Andersson, Anders F.
et al.

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.

Pelve, Erik A.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Molecular Evolution.
Lindeberg, Stefan
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Molecular Evolution.
Lundgren, Magnus
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Molecular Evolution. Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Microbiology.
Nilsson, Peter

Bernander, Rolf
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolution, Genomics and Systematics, Molecular Evolution.
Replication-biased genome organisation in the crenarchaeon Sulfolobus2010In: BMC Genomics, E-ISSN 1471-2164, Vol. 11, p. 454-Article in journal (Refereed)
Abstract [en]
Background: Species of the crenarchaeon Sulfolobus harbour three replication origins in their single circular chromosome that are synchronously initiated during replication. Results: We demonstrate that global gene expression in two Sulfolobus species is highly biased, such that early replicating genome regions are more highly expressed at all three origins. The bias by far exceeds what would be anticipated by gene dosage effects alone. In addition, early replicating regions are denser in archaeal core genes (enriched in essential functions), display lower intergenic distances, and are devoid of mobile genetic elements. Conclusion: The strong replication-biased structuring of the Sulfolobus chromosome implies that the multiple replication origins serve purposes other than simply shortening the time required for replication. The higher-level chromosomal organisation could be of importance for minimizing the impact of DNA damage, and may also be linked to transcriptional regulation.
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24. Comparison of a mass balance and an ecosystem model approach when evaluating the carbon cycling in a lake ecosystemAndersson, Eva
et al.

Sobek, Sebastian
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Comparison of a mass balance and an ecosystem model approach when evaluating the carbon cycling in a lake ecosystem2006In: Ambio, ISSN 0044-7447, E-ISSN 1654-7209, Vol. 35, no 8, p. 476-483Article in journal (Refereed)
25. Abundance data adaptation experiment
Andersson, Martin

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Abundance data adaptation experiment2017Data set
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26. Bacterial abundance data from sterilization experiment
Andersson, Martin

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Bacterial abundance data from sterilization experiment2017Data set
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27. Extent and limitations of functional redundancy among bacterial communities towards dissolved organic matter
Andersson, Martin

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Extent and limitations of functional redundancy among bacterial communities towards dissolved organic matter2017Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]
One of the key processes in the carbon cycle on our planet is the degradation of dissolved organic matter (DOM) in aquatic environments. The use of organic matter by bacteria links energy from DOM to higher trophic levels of the ecosystem when bacteria are consumed by other organisms. This is referred to as the microbial loop. In this thesis I examined if the communities were functionally redundant in their ability to utilize organic matter, or if variation in bacterial composition and richness is of importance. To test this overarching question several experiments were conducted that include methods such as illumina sequencing of the 16S rRNA gene for taxonomic identification of bacterial communities, flow cytometry to follow the growth of communities and spectroscopic measurement to describe the composition of the organic matter pool. Initially we demonstrated how to optimally sterilize organic matter for experimental studies in order to preserve its natural complexity. In further experiments we found that bacterial communities are redundant in their utilization of organic matter and can maintain optimal performance towards a range of organic matter pools. Related to this we found that pre-adaptation to organic matter played a small role as communities performed equally well regardless of their environmental history. We saw a small effect of richness and composition of bacterial communities on the efficiency of organic matter use, but conclude that this is of minor importance relative to abiotic factors. Still, we also show that organic matter can put strong selection pressure on bacterial communities with regards to richness and composition. Additionally we found that the supply rate of a carbon compound greatly influenced the energy utilization of the compound, i.e. a higher growth rate can be maintained if substrate is delivered in pulses relative to a continuous flow. Finally we conclude that the variation in bacterial communities is unlikely to have a major influence on carbon cycling in boreal lakes, but to enable a finer understanding, the genetics underlying the carbon utilization needs to be further explored.
List of papers

1. Effects of sterilization on dissolved organic carbon (DOC) composition and bacterial utilization of DOC from lakes
Open this publication in new window or tab >>Effects of sterilization on dissolved organic carbon (DOC) composition and bacterial utilization of DOC from lakes
Andersson, Martin G. I.
Catalán, Núria
Rahman, Zeeshanur
Tranvik, Lars J.
Lindström, Eva S.
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2018 (English)In: Aquatic Microbial Ecology, ISSN 0948-3055, E-ISSN 1616-1564, Vol. 82, no 2, p. 199-208Article in journal (Refereed) Published
Abstract [en]
Sterilization of dissolved organic carbon (DOC) is an essential step in research on interactions between DOC and organisms, for example where the effect of different microbial communities on DOC is studied or vice versa. However, few studies have gone beyond acknowledging that sterilization of DOC influences its characteristics. Here, we aimed to provide further knowledge that enables scientists to better tailor their sterilization methods to their research question. To meet this aim, we conducted a sterilization experiment with DOC from 4 boreal lakes treated with 4 sterilization methods, i.e. 2 filtrations (0.2 µm, 0.1 µm) and 2 autoclaving approaches (single and double autoclaving with a single pH adjustment). Quantity and spectroscopic properties of DOC, before and after sterilization, were studied, and DOC was further tested as a substrate for bacterial growth. We found that the filtration methods better preserved the different DOC measures. In contrast, autoclaving caused major inconsistent shifts in both qualitative and quantitative measures of DOC, as well as an increase of the maximum abundance of bacteria in growth experiments. Nonetheless, there remains a trade-off between retaining the quality of DOC and achieving sterile conditions. Therefore, the sterilization method of choice should be guided by the scientific question at hand.

Keywords
sterilization, autoclave, filtration, dissolved organic carbon, excitation emission matrices, parallel factor analysis
National Category
Biological Sciences
Research subject
Microbiology
Identifiers
urn:nbn:se:uu:diva-331676 (URN)10.3354/ame01890 (DOI)000454321300006 ()

Note
Title in Thesis list of papers: Effects of sterilization on composition and bacterial utilization of dissolved organic carbon
Available from: 2017-10-16 Created: 2017-10-16 Last updated: 2021-03-25Bibliographically approved

2. Influence of pulsed and continuous substrate inputs on freshwater bacterial community composition and functioning in bioreactors
Open this publication in new window or tab >>Influence of pulsed and continuous substrate inputs on freshwater bacterial community composition and functioning in bioreactors
Ricão Canelhas, Monica
Andersson, Martin
Eiler, Alexander
Lindström, Eva S.
Bertilsson, Stefan
Show others...
2017 (English)In: Environmental Microbiology, ISSN 1462-2912, E-ISSN 1462-2920, Vol. 19, no 12, p. 5078-5087Article in journal (Refereed) Published
Abstract [en]
Aquatic environments are typically not homogenous, but characterized by changing substrate concentration gradients and nutrient patches. This heterogeneity in substrate availability creates a multitude of niches allowing bacteria with different substrate utilization strategies to hypothetically coexist even when competing for the same substrate. To study the impact of heterogeneous distribution of organic substrates on bacterioplankton, bioreactors with freshwater bacterial communities were fed artificial freshwater medium with acetate supplied either continuously or in pulses. After a month-long incubation, bacterial biomass and community-level substrate uptake rates were twice as high in the pulsed treatment compared to the continuously fed reactors even if the same total amount of acetate was supplied to both treatments. The composition of the bacterial communities emerging in the two treatments differed significantly with specific taxa overrepresented in the respective treatments. The higher estimated growth yield in cultures that received pulsed substrate inputs, imply that such conditions enable bacteria to use resources more efficiently for biomass production. This finding agrees with established concepts of basal maintenance energy requirements and high energetic costs to assimilate substrates at low concentration. Our results further imply that degradation of organic matter is influenced by temporal and spatial heterogeneity in substrate availability.

National Category
Natural Sciences
Identifiers
urn:nbn:se:uu:diva-275178 (URN)10.1111/1462-2920.13979 (DOI)000418352800021 ()29124844 (PubMedID)

Funder
Swedish Research Council, 2012-3892
Available from: 2016-02-01 Created: 2016-02-01 Last updated: 2022-01-29Bibliographically approved

3. Response and effect interactions between bacterial communities and organic matter
Open this publication in new window or tab >>Response and effect interactions between bacterial communities and organic matter
Andersson, Martin
Rahman, Zeeshanur
Catalán, Núria
Tranvik, Lars
Langenheder, Silke
Lindström, Eva
Show others...
(English)Manuscript (preprint) (Other academic)
Abstract [en]
The interaction between bacteria and dissolved organic matter (DOM) is crucial for the global carbon cycling. Despite decades of research there are, however, few consistent patterns regarding the relationship between bacterial diversity and community composition and DOM. Here we hypothesized that one reason for such inconsistences among studies is that bacterial communities can adapt to a DOM source over time, whereby a change in the functioning of a community can be, at least partly, decoupled from its composition and diversity. To test this idea we performed a reciprocal transplant experiment with medium (i.e. DOM source) and bacterial communities from two boreal lakes. In this experiment the two communities were allowed to adapt to their indigenous and their foreign source of DOM over 42 days. Bacterial community composition (BCC) was measured throughout the experiment. In addition we measured the capacity of the communities to use DOM, in repeated short (5 days) separated bioassays. The results show a response of bacterial community composition to the DOM sources which was influenced by the origin of the community. In contrast, we could not show an effect of BCC on DOM-processing and functional performance. Indeed, communities of different origin processed the two DOM sources equally well even at the beginning of the experiment. This work demonstrates that the DOM pool can be a strong selective force for BCC but not vice versa.

National Category
Biological Sciences
Identifiers
urn:nbn:se:uu:diva-331696 (URN)

Available from: 2017-10-17 Created: 2017-10-17 Last updated: 2017-10-23

4. The relative importance of richness and BCC for DOC degradation
Open this publication in new window or tab >>The relative importance of richness and BCC for DOC degradation
Andersson, Martin
Rahman, Zeeshanur
Catalán, Núria
Lindström, Eva
(English)Manuscript (preprint) (Other academic)
Abstract [en]
The importance of biodiversity has been of primary interest for ecologist the last 20 years, giving rise to biodiversity ecosystem function (BEF) studies. Within the traditional field of ecology reoccurring patterns have emerged but within microbial ecology the importance of species richness for functioning is still poorly understood with few consistent patterns. In this study we examined the effect of species richness for dissolved organic matter degradation in lakes. This was examined within a smaller span of species richness compared to what is typically in microbial BEF experiments. Bacterial communities of reduced species richness were exposed to a range of DOC environments to test if reduced richness changed the functioning of communities and if the effect was similar among DOC environments. This was conducted in a full factorial design of 3 levels, with 6 dilutions, 5 media and 3 inocula resulting in 90 treatments. Overall, richness and community composition appeared to have effects on DOC degradation, but these effects were minor compared to the variation caused by the different DOC sources. Further, the importance of species richness varied among media and, thus, the chemical complexity of the environment influenced the biodiversity-ecosystem functioning relationship.

National Category
Biological Sciences
Research subject
Microbiology
Identifiers
urn:nbn:se:uu:diva-331693 (URN)

Available from: 2017-10-17 Created: 2017-10-17 Last updated: 2017-10-23

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28. Spectroscopic data / carbon quality measurements
Andersson, Martin

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Spectroscopic data / carbon quality measurements1987Data set
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29. The spatial structure of bacterial communities is influenced by historical environmental conditions
Andersson, Martin
et al.

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.

Berga, Mercè
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Lindström, Eva S.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
Langenheder, Silke
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.
The spatial structure of bacterial communities is influenced by historical environmental conditions2014In: Ecology, ISSN 0012-9658, E-ISSN 1939-9170, Vol. 95, no 5, p. 1134-1140Article in journal (Refereed)
Abstract [en]
The spatial structure of ecological communities, including that of bacteria, is often influenced by species sorting by contemporary environmental conditions. Moreover, historical processes, i.e., ecological and evolutionary events that have occurred at some point in the past, such as dispersal limitation, drift, priority effects, or selection by past environmental conditions, can be important, but are generally investigated much less. Here, we conducted a field study using 16 rock pools, where we specifically compared the importance of past vs. contemporary environmental conditions for bacterial community structure by correlating present differences in bacterial community composition among pools to environmental conditions measured on the same day, as well as to those measured 2, 4, 6, and 8 d earlier. The results prove that selection by past environmental conditions exists, since we were able to show that bacterial communities are, to a greater extent, an imprint of past compared to contemporary environmental conditions. We suggest that this is the result of a combination of different mechanisms, including priority effects that cause rapid adaptation to new environmental conditions of taxa that have been initially selected by past environmental conditions, and slower rates of turnover in community composition compared to environmental conditions.
Publisher's full text
30. Effects of sterilization on dissolved organic carbon (DOC) composition and bacterial utilization of DOC from lakes
Andersson, Martin G. I.
et al.

Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.

Catalán, Núria
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. ICRA, Catalan Institute of Water Research, Girona, Spain.
Rahman, Zeeshanur
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Applied Microbiology and Biotechnology Laboratory, Department of Botany, University of Delhi.
Tranvik, Lars J.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology.</

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Andersson, Martin G. I.

Catalán, Núria

Rahman, Zeeshanur

Tranvik, Lars J.

Lindström, Eva S.

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Ricão Canelhas, Monica

Andersson, Martin

Eiler, Alexander

Lindström, Eva S.

Bertilsson, Stefan

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Andersson, Martin

Rahman, Zeeshanur

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Tranvik, Lars

Langenheder, Silke

Lindström, Eva

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Rahman, Zeeshanur

Catalán, Núria

Lindström, Eva

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