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Ecology and Evolution
Iceland
2026

D-Index & Metrics

Ecology and Evolution

D-Index
40
Citations
7178
World Ranking
6062
National Ranking
3

Earth Science

D-Index
31
Citations
4026
World Ranking
8919
National Ranking
23

Research.com Recognitions

  • 2026 - Research.com Ecology and Evolution in Iceland Leader Award

Overview

Bjarni D. Sigurdsson is affiliated with the Agricultural University of Iceland in Iceland and has contributed extensively to the fields of Environmental Science and Agricultural and Biological Sciences. Their research specializes particularly in Ecology, Soil Science, Atmospheric Science, Molecular Biology, and Global and Planetary Change.

The main research topics covered by Sigurdsson include:

  • Soil Carbon and Nitrogen Dynamics
  • Microbial Community Ecology and Physiology
  • Climate change and permafrost
  • Peatlands and Wetlands Ecology
  • Geology and Paleoclimatology Research
  • Environmental DNA in Biodiversity Studies
  • Genomics and Phylogenetic Studies

Frequent collaborators of Sigurdsson encompass Ivan A. Janssens, Andreas Richter, Páll Sigurðsson, Josep Peñuelas, and Niel Verbrigghe, reflecting a broad network within environmental and ecological research communities.

The scientist has published in multiple venues, with recurrent contributions to:

  • Soil Biology and Biochemistry
  • Surtsey research
  • Global Change Biology
  • Forest Ecology and Management
  • Icelandic Agricultural Sciences

Recent selected papers exemplify the scope and subjects of their research:

  • "Increased microbial expression of organic nitrogen cycling genes in long-term warmed grassland soils," 2021, ISME Communications
  • "Patterns of local, intercontinental and interseasonal variation of soil bacterial and eukaryotic microbial communities," 2020, FEMS Microbiology Ecology
  • "Effects of intensive biomass harvesting on forest soils in the Nordic countries and the UK: A meta-analysis," 2020, Forest Ecology and Management
  • "The influence of soil warming on organic carbon sequestration of arbuscular mycorrhizal fungi in a sub-arctic grassland," 2020, Soil Biology and Biochemistry
  • "Down-regulation of the bacterial protein biosynthesis machinery in response to weeks, years, and decades of soil warming," 2022, Science Advances

Best Publications

  • Stomatal conductance of forest species after long‐term exposure to elevated CO2 concentration: a synthesis

    B. E. Medlyn;B. E. Medlyn;C. V. M. Barton;M. S. J. Broadmeadow;R. Ceulemans

  • The likely impact of elevated [CO2], nitrogen deposition, increased temperature and management on carbon sequestration in temperate and boreal forest ecosystems: a literature review.

    Ritta Hyvönen;Goran I. Agren;Sune Linder;Tryggve Persson

  • Do tree species influence soil carbon stocks in temperate and boreal forests

    Lars Vesterdal;Nicholas Clarke;Bjarni D. Sigurdsson;Per Gundersen

  • Microbial temperature sensitivity and biomass change explain soil carbon loss with warming.

    Tom W. N. Walker;Tom W. N. Walker;Christina Kaiser;Christina Kaiser;Florian Strasser;Craig W. Herbold

  • Greenhouse gas balances of managed peatlands in the Nordic countries – present knowledge and gaps

    M. E. Maljanen;M. E. Maljanen;B. D. Sigurdsson;J. Guðmundsson;H. Óskarsson

  • Soil carbon stock change following afforestation in Northern Europe: a meta-analysis.

    T. G. Bárcena;L. P. Kiær;L. Vesterdal;H. M. Stefánsdóttir

  • Plant invasion is associated with higher plant-soil nutrient concentrations in nutrient-poor environments

    Jordi Sardans;Mireia Bartrons;Mireia Bartrons;Olga Margalef;Albert Gargallo‐Garriga

  • Modelling the short-term effects of climate change on the productivity of selected tree species in Nordic countries

    Johan Bergh;Michael Freeman;Bjarni Sigurdsson;Seppo Kellomäki

  • Growth of mature boreal Norway spruce was not affected by elevated [CO 2 ] and/or air temperature unless nutrient availability was improved

    Bjarni D Sigurdsson;Jane L Medhurst;Göran Wallin;Olafur Eggertsson

  • Climate change and geothermal ecosystems: natural laboratories, sentinel systems, and future refugia

    Eoin J. O'Gorman;Jonathan P. Benstead;Wyatt F. Cross;Nikolai Friberg

  • Influence of different tree-harvesting intensities on forest soil carbon stocks in boreal and northern temperate forest ecosystems

    Nicholas Clarke;Per Gundersen;Ulrika Jönsson-Belyazid;O. Janne Kjønaas

  • Environmental Services Provided from Riparian Forests in the Nordic Countries

    Per Gundersen;Ari Laurén;Leena Finér;Eva Ring

  • The handbook for standardized field and laboratory measurements in terrestrial climate change experiments and observational studies (ClimEx)

    Aud Helen Halbritter Rechsteiner;Hans J. De Boeck;Amy Elizabeth Eycott;Amy Elizabeth Eycott;Sabine Reinsch

  • Lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils

    Cindy De Jonge;Dajana Radujković;Bjarni D. Sigurdsson;Bjarni D. Sigurdsson;James T. Weedon;James T. Weedon

  • Elevated [CO2] and nutrient status modified leaf phenology and growth rhythm of young Populus trichocarpa trees in a 3-year field study

    Bjarni D. Sigurdsson

  • Leaf area index is the principal scaling parameter for both gross photosynthesis and ecosystem respiration of Northern deciduous and coniferous forests

    Anders Lindroth;Fredrik Lagergren;Mika Aurela;Brynhildur Bjarnadottir

  • Effect of elevated [CO2] on stem wood properties of mature Norway spruce grown at different soil nutrient availability

    Katri Kostiainen;Seija Kaakinen;Pekka Saranpää;Bjarni D. Sigurdsson

  • Carbon balance of coniferous forests growing in contrasting climates: model-based analysis

    Belinda E. Medlyn;Paul Berbigier;Robert Clement;Achim Grelle

  • Sensitivity of soil carbon fractions and their specific stabilization mechanisms to extreme soil warming in a subarctic grassland

    Christopher Poeplau;Thomas Kätterer;Niki I. W. Leblans;Niki I. W. Leblans;Bjarni D. Sigurdsson

  • Increased microbial expression of organic nitrogen cycling genes in long-term warmed grassland soils

    Joana Séneca;Andrea Söllinger;Craig W. Herbold;Petra Pjevac;Petra Pjevac

  • Plant colonization, succession and ecosystem development on Surtsey with reference to neighbouring islands

    B. Magnússon;S. H. Magnússon;E. Ólafsson;B. D. Sigurdsson

Frequent Co-Authors

Ivan A. Janssens
Ivan A. Janssens University of Antwerp
Josep Peñuelas
Josep Peñuelas Centre for Ecological Research and Forestry Applications (CREAF), CSIC
Andreas Richter
Andreas Richter University of Bremen
Sune Linder
Sune Linder Swedish University of Agricultural Sciences
Lars Vesterdal
Lars Vesterdal University of Copenhagen
Erik Verbruggen
Erik Verbruggen University of Antwerp
Sara Vicca
Sara Vicca University of Antwerp
Per Gundersen
Per Gundersen University of Copenhagen
Anders Lindroth
Anders Lindroth Lund University
Håkan Wallander
Håkan Wallander Lund University

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