World's Best Scientists 2026 revealed!
Steven A. Trewick

Steven A. Trewick

D-Index & Metrics

Ecology and Evolution

D-Index
39
Citations
7296
World Ranking
6315
National Ranking
76

Steven A. Trewick 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 Steven A. Trewick 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: 189 publications — 70th percentile

70% of scientists in this discipline score the same or lower.

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

Steven A. Trewick 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 Steven A. Trewick 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: 39 D-Index — 26th percentile

26% of scientists in this discipline score the same or lower.

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

Overview

Steven A. Trewick is affiliated with Massey University in New Zealand and has a research focus spanning multiple intersecting fields in biological and environmental sciences. Their work primarily addresses topics within Agricultural and Biological Sciences, Environmental Science, and Biochemistry, Genetics and Molecular Biology.

The scientist's research frequently revolves around subfields such as Ecology, Evolution, Behavior and Systematics, Genetics, Nature and Landscape Conservation, Ecology, and Paleontology. The main themes they investigate include Orthoptera Research and Taxonomy, Ecology and Vegetation Dynamics Studies, Plant and Animal Studies, Genetic Diversity and Population Structure, Scarabaeidae Beetle Taxonomy and Biogeography, Species Distribution and Climate Change, and Insect and Arachnid Ecology and Behavior.

Steven A. Trewick has published extensively on the ecology and taxonomy of grasshoppers and other insects, their response to climate change, and related evolutionary studies. Their research outputs have appeared in various scientific journals, with frequent publications in:

  • Zootaxa
  • Insects
  • Ecology and Evolution
  • Royal Society Open Science
  • European Journal of Taxonomy

Some recent representative publications include:

  • Climate change and alpine-adapted insects: modelling environmental envelopes of a grasshopper radiation (2022, Royal Society Open Science)
  • An alpine grasshopper radiation older than the mountains, on Kā Tiritiri o te Moana (Southern Alps) of Aotearoa (New Zealand) (2020, Molecular Phylogenetics and Evolution)
  • Chemical Ecology and Olfaction in Short-Horned Grasshoppers (Orthoptera: Acrididae) (2022, Journal of Chemical Ecology)
  • Global warming leads to habitat loss and genetic erosion of alpine biodiversity (2023, Journal of Biogeography)
  • Convergent morphological responses to loss of flight in rails (Aves: Rallidae) (2020, Ecology and Evolution)

The scientist collaborates frequently with several co-authors, among them:

  • Mary Morgan-Richards
  • Emily Koot
  • Mari Nakano
  • Fabio Leonardo Meza-Joya
  • Andrea Clavijo McCormick

Steven A. Trewick's research interests combine ecological, evolutionary, and genetic approaches to investigate insect biodiversity, particularly focusing on alpine environments and the impacts of climate change on species distribution and genetic structure. Their contributions also include studies on morphological evolution and chemical ecology within Orthoptera and related groups.

Best Publications

  • The Waipounamu Erosion Surface: questioning the antiquity of the New Zealand land surface and terrestrial fauna and flora

    C. A. Landis;H. J. Campbell;J. G. Begg;D. C. Mildenhall

  • Hypothesis testing in biogeography

    Michael Crisp;Steve A. Trewick;Lynette Gai Cook

  • New Zealand phylogeography: evolution on a small continent.

    Graham P. Wallis;Steven A. Trewick

  • Polyploidy, phylogeography and Pleistocene refugia of the rockfern Asplenium ceterach: evidence from chloroplast DNA.

    S. A. Trewick;M. Morgan-Richards;S. J. Russell;S. Henderson

  • Sympatric cryptic species in New Zealand Onychophora

    Steven A. Trewick

  • GUEST EDITORIAL: Hello New Zealand

    Steven A. Trewick;Adrian M. Paterson;Hamish J. Campbell

  • Hello New Zealand

    Steven A. Trewick;Adrian M. Paterson;Hamish J. Campbell

  • Molecular evidence for dispersal rather than vicariance as the origin of flightless insect species on the Chatham Islands, New Zealand

    Steven A. Trewick

  • Relict species: a relict concept?

    Philippe Grandcolas;Romain Nattier;Steve Trewick

  • Evolution of New Zealand's terrestrial fauna: a review of molecular evidence

    Julia Goldberg;Steven A Trewick;Adrian M Paterson

  • BRIDGING THE “BEECH-GAP”: NEW ZEALAND INVERTEBRATE PHYLOGEOGRAPHY IMPLICATES PLEISTOCENE GLACIATION AND PLIOCENE ISOLATION

    Steven A. Trewick;Graham P. Wallis

  • Flightlessness and phylogeny amongst endemic rails (Aves:Rallidae) of the New Zealand region.

    S. A. Trewick

  • DNA Barcoding is not enough: mismatch of taxonomy and genealogy in New Zealand grasshoppers (Orthoptera: Acrididae).

    Steven A. Trewick

  • Phylogeographical pattern correlates with Pliocene mountain building in the alpine scree weta (Orthoptera, Anostostomatidae)

    S. A. Trewick;G. P. Wallis;M. Morgan‐Richards

  • Fire and slice: palaeogeography for biogeography at New Zealand's North Island/ South Island juncture

    SA Trewick;KJ Bland

  • Molecular evolution and the latitudinal biodiversity gradient

    E J Dowle;M Morgan-Richards;S A Trewick

  • Deep global evolutionary radiation in birds: diversification and trait evolution in the cosmopolitan bird family Rallidae.

    Unknown

  • After the deluge: mitochondrial DNA indicates Miocene radiation and Pliocene adaptation of tree and giant weta (Orthoptera: Anostostomatidae)

    Steven A. Trewick;Mary Morgan‐Richards

  • Bird evolution: testing the Metaves clade with six new mitochondrial genomes

    Mary Morgan-Richards;Steve A Trewick;Anna Bartosch-Harlid;Olga Kardailsky

  • Mitochondrial DNA sequences support allozyme evidence for cryptic radiation of New Zealand Peripatoides (Onychophora)

    S. A. Trewick

  • Vicars, tramps and assembly of the New Zealand avifauna: a review of molecular phylogenetic evidence

    Steven A. Trewick;Gillian C. Gibb

Frequent Co-Authors

Mary Morgan-Richards
Mary Morgan-Richards Massey University
Graham P. Wallis
Graham P. Wallis University of Otago
James S. Crampton
James S. Crampton Victoria University of Wellington
Hamish G. Spencer
Hamish G. Spencer University of Otago
Brent J. Sinclair
Brent J. Sinclair University of Western Ontario
Vincent E. Neall
Vincent E. Neall Massey University
Dave Craw
Dave Craw University of Otago
Peter J. Lockhart
Peter J. Lockhart Massey University
Shinichi Nakagawa
Shinichi Nakagawa University of New South Wales
David A. Wheeler
David A. Wheeler Baylor College of Medicine

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