World's Best Scientists 2026 revealed!
Award Badge
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

Bjarni D. Sigurdsson publication distribution in Ecology and Evolution in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Ecology and Evolution in 2026. The highlighted bar marks where Bjarni D. Sigurdsson sits on this spectrum.

37–46 publications: 11 scientists 47–56 publications: 41 scientists 57–66 publications: 147 scientists 67–76 publications: 219 scientists 77–86 publications: 409 scientists 87–96 publications: 467 scientists 97–106 publications: 613 scientists 107–116 publications: 585 scientists 117–126 publications: 591 scientists 127–136 publications: 567 scientists 137–146 publications: 535 scientists 147–156 publications: 481 scientists 157–166 publications: 404 scientists 167–176 publications: 338 scientists 177–186 publications: 362 scientists 187–196 publications: 309 scientists 197–206 publications: 246 scientists 207–216 publications: 223 scientists 217–226 publications: 205 scientists 227–236 publications: 167 scientists 237–246 publications: 141 scientists 247–256 publications: 150 scientists 257–266 publications: 125 scientists 267–276 publications: 113 scientists 277–286 publications: 92 scientists 287–296 publications: 81 scientists 297–306 publications: 77 scientists 307–316 publications: 64 scientists 317–326 publications: 47 scientists 327–336 publications: 58 scientists 337–346 publications: 52 scientists 347–356 publications: 48 scientists 357–366 publications: 50 scientists 367–376 publications: 30 scientists 377–386 publications: 30 scientists 387–396 publications: 34 scientists 397–406 publications: 25 scientists 407–416 publications: 17 scientists 417–426 publications: 12 scientists 427–436 publications: 20 scientists 437–446 publications: 9 scientists 447–456 publications: 12 scientists 457–466 publications: 11 scientists 467–476 publications: 13 scientists 477–486 publications: 10 scientists 487–496 publications: 7 scientists 497–506 publications: 12 scientists 507–516 publications: 10 scientists 517–526 publications: 9 scientists 527–532 publications: 6 scientists 533+ publications: 100 scientists
37 publications 533+

This scientist: 167 publications — 61st percentile

61% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 533 publications or more.

Bjarni D. Sigurdsson D-index placement in Ecology and Evolution in 2026

The chart shows the D-index (discipline H-index) distribution of Ecology and Evolution scientists ranked by Research.com in 2026. The highlighted bar marks where Bjarni D. Sigurdsson sits on this spectrum.

30 D-Index: 95 scientists 31 D-Index: 123 scientists 32 D-Index: 191 scientists 33 D-Index: 245 scientists 34 D-Index: 252 scientists 35 D-Index: 244 scientists 36 D-Index: 249 scientists 37 D-Index: 244 scientists 38 D-Index: 254 scientists 39 D-Index: 254 scientists 40 D-Index: 280 scientists 41 D-Index: 274 scientists 42 D-Index: 266 scientists 43 D-Index: 233 scientists 44 D-Index: 248 scientists 45 D-Index: 208 scientists 46 D-Index: 201 scientists 47 D-Index: 213 scientists 48 D-Index: 207 scientists 49 D-Index: 172 scientists 50 D-Index: 209 scientists 51 D-Index: 199 scientists 52 D-Index: 152 scientists 53 D-Index: 169 scientists 54 D-Index: 163 scientists 55 D-Index: 148 scientists 56 D-Index: 120 scientists 57 D-Index: 146 scientists 58 D-Index: 137 scientists 59 D-Index: 140 scientists 60 D-Index: 104 scientists 61 D-Index: 120 scientists 62 D-Index: 118 scientists 63 D-Index: 99 scientists 64 D-Index: 77 scientists 65 D-Index: 100 scientists 66 D-Index: 86 scientists 67 D-Index: 83 scientists 68 D-Index: 75 scientists 69 D-Index: 94 scientists 70 D-Index: 57 scientists 71 D-Index: 68 scientists 72 D-Index: 59 scientists 73 D-Index: 63 scientists 74 D-Index: 66 scientists 75 D-Index: 60 scientists 76 D-Index: 42 scientists 77 D-Index: 49 scientists 78 D-Index: 39 scientists 79 D-Index: 37 scientists 80 D-Index: 43 scientists 81 D-Index: 41 scientists 82 D-Index: 45 scientists 83 D-Index: 34 scientists 84 D-Index: 40 scientists 85 D-Index: 35 scientists 86 D-Index: 55 scientists 87 D-Index: 24 scientists 88 D-Index: 24 scientists 89 D-Index: 30 scientists 90 D-Index: 23 scientists 91 D-Index: 25 scientists 92 D-Index: 28 scientists 93 D-Index: 27 scientists 94 D-Index: 13 scientists 95 D-Index: 23 scientists 96 D-Index: 12 scientists 97 D-Index: 14 scientists 98 D-Index: 19 scientists 99 D-Index: 16 scientists 100 D-Index: 14 scientists 101 D-Index: 5 scientists 102 D-Index: 21 scientists 103 D-Index: 16 scientists 104 D-Index: 10 scientists 105 D-Index: 8 scientists 106 D-Index: 7 scientists 107 D-Index: 7 scientists 108 D-Index: 6 scientists 109 D-Index: 9 scientists 110 D-Index: 11 scientists 111 D-Index: 12 scientists 112 D-Index: 9 scientists 113 D-Index: 7 scientists 114 D-Index: 3 scientists 115 D-Index: 8 scientists 116 D-Index: 5 scientists 117 D-Index: 11 scientists 118 D-Index: 4 scientists 119 D-Index: 2 scientists 120 D-Index: 5 scientists 121 D-Index: 3 scientists 122+ D-Index: 99 scientists
30 D-Index 122+

This scientist: 40 D-Index — 29th percentile

29% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 122 D-Index or more.

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

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

If you're passionate about Ecology and Evolution but want to explore related careers, a variety of online degree options are available. Many professionals choose paths in counseling, psychology, or human services, each offering opportunities to make a positive impact. For those considering graduate studies, exploring the cheapest masters in counseling online can help you find affordable programs that fit your budget while providing strong academic foundations.

If clinical psychology interests you, there are accredited clinical psychologist online programs that allow you to balance your studies with other commitments. Prospective students aiming for careers in social work, advocacy, or community outreach may consider online schools for human services, which often offer flexible and accelerated degree options.

Additionally, those with education backgrounds might consider a transition into speech pathology. Ever wondered, can you become a speech pathologist with an education degree? Understanding your eligibility and the pathways available could open doors to rewarding roles in this growing field. By exploring these online programs, you can align your academic pursuits with diverse, in-demand career paths.

Best Scientists Citing Bjarni D. Sigurdsson

Trending Scientists

Recently Published Articles