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James D. M. Speed

D-Index & Metrics

Ecology and Evolution

D-Index
36
Citations
5507
World Ranking
7101
National Ranking
121

James D. M. Speed 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 James D. M. Speed sits on this spectrum.

37–41 publications: 2 scientists 42–46 publications: 9 scientists 47–51 publications: 10 scientists 52–56 publications: 31 scientists 57–61 publications: 56 scientists 62–66 publications: 91 scientists 67–71 publications: 92 scientists 72–76 publications: 127 scientists 77–81 publications: 173 scientists 82–86 publications: 236 scientists 87–91 publications: 227 scientists 92–96 publications: 240 scientists 97–101 publications: 333 scientists 102–106 publications: 280 scientists 107–111 publications: 300 scientists 112–116 publications: 285 scientists 117–121 publications: 305 scientists 122–126 publications: 287 scientists 127–131 publications: 278 scientists 132–136 publications: 289 scientists 137–141 publications: 273 scientists 142–146 publications: 262 scientists 147–151 publications: 246 scientists 152–156 publications: 235 scientists 157–161 publications: 205 scientists 162–166 publications: 199 scientists 167–171 publications: 174 scientists 172–176 publications: 164 scientists 177–181 publications: 173 scientists 182–186 publications: 189 scientists 187–191 publications: 170 scientists 192–196 publications: 139 scientists 197–201 publications: 128 scientists 202–206 publications: 117 scientists 207–211 publications: 115 scientists 212–216 publications: 107 scientists 217–221 publications: 124 scientists 222–226 publications: 81 scientists 227–231 publications: 82 scientists 232–236 publications: 85 scientists 237–241 publications: 75 scientists 242–246 publications: 66 scientists 247–251 publications: 81 scientists 252–256 publications: 69 scientists 257–261 publications: 70 scientists 262–266 publications: 55 scientists 267–271 publications: 64 scientists 272–276 publications: 49 scientists 277–281 publications: 48 scientists 282–286 publications: 44 scientists 287–291 publications: 45 scientists 292–296 publications: 36 scientists 297–301 publications: 39 scientists 302–306 publications: 38 scientists 307–311 publications: 30 scientists 312–316 publications: 34 scientists 317–321 publications: 25 scientists 322–326 publications: 22 scientists 327–331 publications: 28 scientists 332–336 publications: 30 scientists 337–341 publications: 22 scientists 342–346 publications: 30 scientists 347–351 publications: 26 scientists 352–356 publications: 22 scientists 357–361 publications: 29 scientists 362–366 publications: 21 scientists 367–371 publications: 12 scientists 372–376 publications: 18 scientists 377–381 publications: 17 scientists 382–386 publications: 13 scientists 387–391 publications: 21 scientists 392–396 publications: 13 scientists 397–401 publications: 10 scientists 402–406 publications: 15 scientists 407–411 publications: 8 scientists 412–416 publications: 9 scientists 417–421 publications: 8 scientists 422–426 publications: 4 scientists 427–431 publications: 10 scientists 432–436 publications: 10 scientists 437–441 publications: 5 scientists 442–446 publications: 4 scientists 447–451 publications: 10 scientists 452–456 publications: 2 scientists 457–461 publications: 4 scientists 462–466 publications: 7 scientists 467–471 publications: 7 scientists 472–476 publications: 6 scientists 477–481 publications: 6 scientists 482–486 publications: 3 scientists 487–491 publications: 3 scientists 492–496 publications: 4 scientists 497–501 publications: 4 scientists 502–506 publications: 8 scientists 507–511 publications: 5 scientists 512–516 publications: 4 scientists 517–521 publications: 5 scientists 522–526 publications: 4 scientists 527–530 publications: 5 scientists 531+ publications: 100 scientists
37 publications 531+

This scientist: 182 publications — 67th percentile

67% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 531 publications or more.

James D. M. Speed 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 James D. M. Speed 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: 153 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: 119 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: 27 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: 7 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: 100 scientists
30 D-Index 121+

This scientist: 36 D-Index — 17th percentile

17% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 121 D-Index or more.

Overview

James D. M. Speed is affiliated with the Norwegian University of Science and Technology in Norway. Their research primarily spans the field of Environmental Science, with a focus on subfields such as Ecology, Atmospheric Science, Nature and Landscape Conservation, Global and Planetary Change, and Ecological Modeling.

Their work covers diverse topics, including:

  • Ecology and Vegetation Dynamics Studies
  • Wildlife Ecology and Conservation
  • Species Distribution and Climate Change
  • Climate change and permafrost
  • Rangeland and Wildlife Management
  • Animal Ecology and Behavior Studies
  • Indigenous Studies and Ecology

James D. M. Speed has published in several scientific venues, with frequent contributions to:

  • Environmental Evidence
  • Oikos
  • OPAL (Open@LaTrobe) (La Trobe University)
  • International Journal of Healthcare Simulation
  • Global Change Biology

They have collaborated extensively with a range of co-authors, most notably Katariina Vuorinen, Isabel C. Barrio, Gunnar Austrheim, Anders Lorentzen Kolstad, and Matthew Gentle.

Recent publications by James D. M. Speed include:

  • "SoilTemp: A global database of near-surface temperature" (2020) published in Global Change Biology
  • "Global plant trait relationships extend to the climatic extremes of the tundra biome" (2020) published in Nature Communications
  • "Species data for understanding biodiversity dynamics: The what, where and when of species occurrence data collection" (2021) published in Ecological Solutions and Evidence
  • "Stomping in silence: Conceptualizing trampling effects on soils in polar tundra" (2020) published in Functional Ecology
  • "Counting the bodies: Estimating the numbers and spatial variation of Australian reptiles, birds and mammals killed by two invasive mesopredators" (2022) published in Diversity and Distributions

Best Publications

  • Plant functional trait change across a warming tundra biome

    Anne D. Bjorkman;Anne D. Bjorkman;Isla H. Myers-Smith;Sarah C. Elmendorf;Sarah C. Elmendorf;Sarah C. Elmendorf;Signe Normand

  • Climate sensitivity of shrub growth across the tundra biome

    Isla H. Myers-Smith;Sarah C. Elmendorf;Sarah C. Elmendorf;Pieter S. A. Beck;Martin Wilmking

  • Local temperatures inferred from plant communities suggest strong spatial buffering of climate warming across Northern Europe

    Jonathan Lenoir;Bente Jessen Graae;Per Arild Aarrestad;Inger Greve Alsos

  • Stay or go - how topographic complexity influences alpine plant population and community responses to climate change

    Bente Jessen Graae;Vigdis Vandvik;W. Scott Armbruster;Wolf L. Eiserhardt;Wolf L. Eiserhardt

  • SoilTemp: A global database of near-surface temperature

    Jonas J. Lembrechts;Juha Aalto;Juha Aalto;Michael B. Ashcroft;Michael B. Ashcroft;Pieter De Frenne

  • Experimental evidence for herbivore limitation of the treeline

    James D. M. Speed;Gunnar Austrheim;Alison J. Hester;Atle Mysterud

  • What are the impacts of reindeer/caribou (Rangifer tarandus L.) on arctic and alpine vegetation?: A systematic review

    Claes Bernes;Kari Anne Bråthen;Bruce C. Forbes;James David Mervyn Speed

  • 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

  • Elevational advance of alpine plant communities is buffered by herbivory

    James D. M. Speed;Gunnar Austrheim;Alison J. Hester;Atle Mysterud

  • Global plant trait relationships extend to the climatic extremes of the tundra biome

    H. J. D. Thomas;A. D. Bjorkman;A. D. Bjorkman;I. H. Myers-Smith;S. C. Elmendorf

  • What is the influence of a reduction of planktivorous and benthivorous fish on water quality in temperate eutrophic lakes? : A systematic review

    Claes Bernes;Stephen R. Carpenter;Anna Gårdmark;Per Larsson

  • Growth limitation of mountain birch caused by sheep browsing at the altitudinal treeline

    James D.M. Speed;Gunnar Austrheim;Alison J. Hester;Atle Mysterud

  • Sheep grazing in the North Atlantic region: A long-term perspective on environmental sustainability

    Louise C. Ross;Gunnar Austrheim;Leif-Jarle Asheim;Gunnar Bjarnason

  • Plant community properties predict vegetation resilience to herbivore disturbance in the Arctic

    James D. M. Speed;James D. M. Speed;Elisabeth J. Cooper;Ingibjörg S. Jónsdóttir;René Van Der Wal

  • Tundra Trait Team: A database of plant traits spanning the tundra biome

    Anne D. Bjorkman;Anne D. Bjorkman;Isla H. Myers-Smith;Sarah C. Elmendorf;Sarah C. Elmendorf;Sarah C. Elmendorf;Signe Normand

  • Species data for understanding biodiversity dynamics: The what, where and when of species occurrence data collection

    Tanja K. Petersen;James D. M. Speed;Vidar Grøtan;Gunnar Austrheim

  • Traditional plant functional groups explain variation in economic but not size-related traits across the tundra biome

    H. J. D. Thomas;I. H. Myers‐Smith;A. D. Bjorkman;A. D. Bjorkman;S. C. Elmendorf

  • Predicting Habitat Utilization and Extent of Ecosystem Disturbance by an Increasing Herbivore Population

    James D.M. Speed;Sarah J. Woodin;Hans Tømmervik;Mikkel Peter Tamstorf

  • Counting the bodies: Estimating the numbers and spatial variation of Australian reptiles, birds and mammals killed by two invasive mesopredators

    Unknown

  • Stomping in silence : Conceptualizing trampling effects on soils in polar tundra

    Maria Tuomi;Maria Tuomi;Maria Väisänen;Maria Väisänen;H Ylänne;H Ylänne;Francis Q. Brearley

  • Background invertebrate herbivory on dwarf birch (Betula glandulosa-nana complex) increases with temperature and precipitation across the tundra biome

    Isabel C. Barrio;Elin Lindén;Mariska Te Beest;Johan Olofsson

  • The response of plant diversity to grazing varies along an elevational gradient

    James D. M. Speed;Gunnar Austrheim;Atle Mysterud

Frequent Co-Authors

Gunnar Austrheim
Gunnar Austrheim Norwegian University of Science and Technology
Ingibjörg S. Jónsdóttir
Ingibjörg S. Jónsdóttir University of Iceland
Bente J. Graae
Bente J. Graae Norwegian University of Science and Technology
Atle Mysterud
Atle Mysterud University of Oslo
Juha M. Alatalo
Juha M. Alatalo Qatar University
Bruce C. Forbes
Bruce C. Forbes University of Lapland
Alison J. Hester
Alison J. Hester James Hutton Institute
Erling Johan Solberg
Erling Johan Solberg Norwegian Institute for Nature Research
Sarah C. Elmendorf
Sarah C. Elmendorf Institute of Arctic and Alpine Research
Esther Lévesque
Esther Lévesque Université du Québec à Trois-Rivières

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Related Online Degrees & Career Pathways

Exploring Ecology and Evolution opens doors to a wide range of career opportunities and advanced studies. For those interested in applying their scientific knowledge to health and medical settings, bsn to msn online programs offer a pathway for biology graduates seeking to advance within nursing or healthcare leadership roles.

Many professionals choose accredited, flexible educational options. Enrolling at non profit universities can provide quality education that’s often more affordable and trusted by employers, especially for those seeking graduate degrees online.

For military personnel or veterans looking to transition into science, conservation, or education, the best military friendly colleges offer tailored support and flexible scheduling to help balance service commitments with academic goals.

Lastly, those inspired to make a direct impact on communities and the environment might consider an online masters in social work. This degree can complement a background in ecology, enabling graduates to address environmental or social challenges with a broader skill set.

Best Scientists Citing James D. M. Speed

Jonathan Lenoir

Jonathan Lenoir

University of Picardie Jules Verne

Publications: 37

Juha Aalto

Juha Aalto

University of Helsinki

Publications: 27

Miska Luoto

Miska Luoto

University of Helsinki

Publications: 27

Isla H. Myers-Smith

Isla H. Myers-Smith

University of Edinburgh

Publications: 24

Ingibjörg S. Jónsdóttir

Ingibjörg S. Jónsdóttir

University of Iceland

Publications: 22

Bruce C. Forbes

Bruce C. Forbes

University of Lapland

Publications: 21

Vigdis Vandvik

Vigdis Vandvik

University of Bergen

Publications: 20

Pieter De Frenne

Pieter De Frenne

Ghent University

Publications: 20

Brian J. Enquist

Brian J. Enquist

University of Arizona

Publications: 18

Jens-Christian Svenning

Jens-Christian Svenning

Aarhus University

Publications: 18

Joris P. G. M. Cromsigt

Joris P. G. M. Cromsigt

Swedish University of Agricultural Sciences

Publications: 18

Bo Elberling

Bo Elberling

University of Copenhagen

Publications: 18

Anne D. Bjorkman

Anne D. Bjorkman

University of Gothenburg

Publications: 18

Kris Verheyen

Kris Verheyen

Ghent University

Publications: 17

Josep Peñuelas

Josep Peñuelas

Centre for Ecological Research and Forestry Applications (CREAF), CSIC

Publications: 15

Anu Eskelinen

Anu Eskelinen

University of Oulu

Publications: 15

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Hong Kong Polytechnic University

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Martin Werner

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