World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
67
Citations
19011
World Ranking
1579
National Ranking
200

J. A. Thomas 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 J. A. Thomas 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: 136 publications — 44th percentile

44% of scientists in this discipline score the same or lower.

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

J. A. Thomas 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 J. A. Thomas 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: 67 D-Index — 81st percentile

81% of scientists in this discipline score the same or lower.

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

Overview

J. A. Thomas is affiliated with the University of Oxford in the United Kingdom. Their research spans fields primarily within Biochemistry, Genetics and Molecular Biology, with additional focus on Health Professions.

The main areas of study include Molecular Biology, General Health Professions, Genetics, Environmental Chemistry, and Ocean Engineering. Their work covers key topics such as RNA Research and Splicing, Heat shock proteins research, Marine Toxins and Detection Methods, Marine Biology and Environmental Chemistry, Environmental Toxicology and Ecotoxicology, RNA and protein synthesis mechanisms, and Lepidoptera biology and taxonomy.

They have authored several papers published across various venues, reflecting a multidisciplinary approach. Recent published works include:

  • Environmental, human health and socioeconomic impacts of Ostreopsis spp. Blooms in the NW Mediterranean (2022, Harmful Algae)
  • Genetically-Encoded Phase Separation Sensors Enable High-Fidelity Live-Cell Probing of Biomolecular Condensates (2025, ACS Sensors)
  • The genome sequence of the Large Blue butterfly, Phengaris (Maculinea) arion (Linnaeus, 1758) (2024, Wellcome Open Research)
  • Genetically-encoded phase separation sensors for intracellular probing of biomolecular condensates (2024, bioRxiv (Cold Spring Harbor Laboratory))
  • Coaching for Asthma to Achieve Better Health Outcomes with Coach McLungsSM Through Primary Care Implementation (2023, Healthcare informatics)

The scientist has collaborated frequently with several researchers, including Alexa Regina Chua Avecilla, Felipe García Quiroz, Elisa Berdalet, Anne-Sophie Pavaux, and Rafael Abós-Herràndiz. This network of coauthors spans various specialized topics related to their research fields.

Their publications have appeared in venues such as Harmful Algae, ACS Sensors, Wellcome Open Research, bioRxiv (Cold Spring Harbor Laboratory), and Healthcare informatics, indicating engagement with both applied and foundational scientific research.

Best Publications

  • Poleward shifts in geographical ranges of butterfly species associated with regional warming

    Camille Parmesan;Nils Ryrholm;Constantí Stefanescu;Jane K. Hill

  • Rapid responses of British butterflies to opposing forces of climate and habitat change.

    M. S. Warren;J. K. Hill;J. K. Hill;J. A. Thomas;J. Asher

  • Comparative Losses of British Butterflies, Birds, and Plants and the Global Extinction Crisis

    J. A. Thomas;M. G. Telfer;D. B. Roy;C. D. Preston

  • Monitoring change in the abundance and distribution of insects using butterflies and other indicator groups

    J.A Thomas

  • The quality and isolation of habitat patches both determine where butterflies persist in fragmented landscapes

    J. A. Thomas;N. A. D. Bourn;R. T. Clarke;K. E. Stewart

  • Butterfly numbers and weather: predicting historical trends in abundance and the future effects of climate change

    D. B. Roy;P. Rothery;D. Moss;E. Pollard

  • Successful conservation of a threatened Maculinea butterfly.

    J. A. Thomas;D. J. Simcox;R. T. Clarke

  • Distributions of occupied and vacant butterfly habitats in fragmented landscapes.

    C. D. Thomas;J. A. Thomas;M. S. Warren

  • Chemical mimicry and host specificity in the butterfly Maculinea rebeli, a social parasite of Myrmica ant colonies

    T. Akino;J. J. Knapp;J. A. Thomas;G. W. Elmes

  • Butterfly Conservation Management

    T R New;R M Pyle;J A Thomas;C D Thomas

  • Host specificity among Maculinea butterflies in Myrmica ant nests

    J. A. Thomas;G. W. Elmes;J. C. Wardlaw;M. Woyciechowski

  • An evaluation of three quick methods commonly used to assess sward height in ecology

    K.E.J. Stewart;N.A.D. Bourn;J.A. Thomas

  • Rare species conservation: case studies of European butterflies

    J. A. Thomas

  • Use of Road Verges by Butterfly and Burnet Populations, and the Effect of Roads on Adult Dispersal and Mortality

    M. L. Munguira;J. A. Thomas

  • Protected areas facilitate species’ range expansions

    Chris D. Thomas;Phillipa K. Gillingham;Richard B. Bradbury;David B. Roy

  • The ecology of Myrmica ants in relation to the conservation of Maculinea butterflies

    G.W. Elmes;J.A. Thomas;J.C. Wardlaw;M.E. Hochberg

  • The ecology and conservation of Maculinea arion and other European species of large blue butterfly

    J. A. Thomas

  • Influence of mowing on the persistence of two endangered large blue butterfly species

    Karin Johst;Martin Drechsler;Jeremy Thomas;Josef Settele

  • Queen Ants Make Distinctive Sounds That Are Mimicked by a Butterfly Social Parasite

    Francesca Barbero;Jeremy A Thomas;Simona Bonelli;Emilio Balletto

  • Ecology and declining status of the silver-spotted skipper butterfly (Hesperia comma) in Britain

    J. A. Thomas;C. D. Thomas;D. J. Simcox;R. T. Clarke

Frequent Co-Authors

Graham W. Elmes
Graham W. Elmes Natural Environment Research Council
Karsten Schönrogge
Karsten Schönrogge Imperial College London
Ralph T. Clarke
Ralph T. Clarke Bournemouth University
Michael E. Hochberg
Michael E. Hochberg University of Montpellier
Josef Settele
Josef Settele Helmholtz Centre for Environmental Research
Chris D. Thomas
Chris D. Thomas University of York
David B. Roy
David B. Roy UK Centre for Ecology & Hydrology
Jane K. Hill
Jane K. Hill University of York
Tom H. Oliver
Tom H. Oliver University of Reading
Richard Fox
Richard Fox Butterfly Conservation

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