World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
40
Citations
4954
World Ranking
6213
National Ranking
67

John H. Hoffmann 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 John H. Hoffmann 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: 99 publications — 18th percentile

18% of scientists in this discipline score the same or lower.

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

John H. Hoffmann 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 John H. Hoffmann 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: 40 D-Index — 29th percentile

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

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

Overview

John H. Hoffmann is affiliated with the University of Cape Town in South Africa. Their research focuses on agricultural and biological sciences, with a strong emphasis on environmental science. The primary areas of study include insect science, plant science, nature and landscape conservation, ecology, and organic chemistry.

The main topics addressed in their work include biological control of invasive species, ecology and vegetation dynamics studies, allelopathy and phytotoxic interactions, forest insect ecology and management, botany, ecology, and taxonomy studies, weed control and herbicide applications, and chemical synthesis and alkaloids.

Hoffmann's frequent coauthors include F.A.C. Impson, C.A. Kleinjan, V. C. Moran, C. Zachariades, and H. G. Zimmermann.

Publications by Hoffmann appear mainly in these venues:

  • African Entomology
  • Biological Control
  • Journal of Applied Ecology
  • SSRN Electronic Journal
  • South African Journal of Science

Selected recent papers authored or coauthored by Hoffmann are:

  • "Biocontrol of a prickly pear cactus in South Africa: Reinterpreting the analogous, renowned case in Australia" (2020, Journal of Applied Ecology)
  • "Implementing a system in South Africa for categorizing the outcomes of weed biological control" (2020, Biological Control)
  • "Developments and Prospects for Biological Control of Prosopis (Leguminosae) in South Africa" (2021, African Entomology)
  • "A Review of Research and Developments with Insect Agents Used for Biological Control of Australian Acacia Species (Caesalpinioideae) in South Africa" (2021, African Entomology)
  • "Suppression of seed production as a long-term strategy in weed biological control: The combined impact of two biocontrol agents on Acacia mearnsii in South Africa" (2020, Biological Control)

Best Publications

  • Classical biological control for the protection of natural ecosystems

    R. G. Van Driesche;R. I. Carruthers;M. S. Hoddle

  • The population dynamics of an introduced tree, Sesbania punicea , in South Africa, in response to long-term damage caused by different combinations of three species of biological control agents

    J. H. Hoffmann;V. C. Moran

  • Risk assessment, eradication, and biological control: global efforts to limit Australian acacia invasions

    John R. U. Wilson;Claire Gairifo;Claire Gairifo;Michelle R. Gibson;Margarita Arianoutsou

  • National‐scale strategic approaches for managing introduced plants: insights from Australian acacias in South Africa

    Brian W. van Wilgen;Colin Dyer;John H. Hoffmann;Philip Ivey

  • Biological control of invasive alien plants in South Africa: necessity, circumspection, and success

    V Cliff Moran;John H. Hoffmann;Helmuth G. Zimmermann

  • Biological Control of Cactaceae in South Africa

    I.D. Paterson;J.H. Hoffmann;H. Klein;C.W. Mathenge

  • PHOTOSYNTHESIS AND SINK ACTIVITY OF WASP‐INDUCED GALLS IN ACACIA PYCNANTHA

    Netta Dorchin;Michael D. Cramer;Michael D. Cramer;John H. Hoffmann

  • The renowned cactus moth, Cactoblastis cactorum: its natural history and threat to native Opuntia floras in Mexico and the United States of America

    H. G. Zimmermann;V. C. Moran;J. H. Hoffmann

  • Seed ecology of an invasive alien species, Acacia longifolia (Fabaceae), in Portuguese dune ecosystems.

    Hélia Marchante;Helena Freitas;John H. Hoffmann

  • Grass mortality in semi-arid savanna: The role of fire, competition and self-shading

    Julia Zimmermann;Steven I. Higgins;Volker Grimm;John Hoffmann

  • Biological control of Australian Acacia species and Paraserianthes lophantha (Willd.) Nielsen (Mimosaceae) in South Africa

    F.A.C. Impson;F.A.C. Impson;C.A. Kleinjan;J.H. Hoffmann;J.A. Post

  • Biological Control of Mesquite (Prosopis Species) (Fabaceae) in South Africa

    C. Zachariades;J.H. Hoffmann;A.P. Roberts

  • The potential role of seed banks in the recovery of dune ecosystems after removal of invasive plant species.

    Hélia Marchante;Hélia Marchante;Helena Freitas;John H. Hoffmann

  • Success in Biological Control of Terrestrial Weeds by Arthropods

    P. Syrett;D. T. Briese;J. H. Hoffmann

  • Host-plant affinities of two biotypes of Dactylopius opuntiae (Homoptera: Dactylopiidae): enhanced prospects for biological control of Opuntia stricta (Cactaceae) in South Africa

    C. R. Volchansky;J. H. Hoffmann;H. G. Zimmermann

  • 100 years of biological control of invasive alien plants in South Africa: History, practice and achievements

    V. Cliff Moran;John H. Hoffmann;Helmuth G. Zimmermann

  • Long‐term population studies and the development of an integrated management programme for control of Opuntia stricta in Kruger National Park, South Africa

    J.H. Hoffmann;V.C. Moran;D.A. Zeller

  • Biological control of invasive golden wattle trees (Acacia pycnantha) by a gall wasp, Trichilogaster sp. (Hymenoptera: Pteromalidae), in South Africa

    J.H Hoffmann;F.A.C Impson;F.A.C Impson;V.C Moran;D Donnelly

  • Some perspectives on the risks and benefits of biological control of invasive alien plants in the management of natural ecosystems.

    B. W. van Wilgen;B. W. van Wilgen;V. C. Moran;J. H. Hoffmann

  • Interactions between three weevil species in the biocontrol of Sesbania punicea (Fabaceae): the role of simulation models in evaluation.

    J.H. Hoffmann

  • Post‐clearing recovery of coastal dunes invaded by Acacia longifolia: is duration of invasion relevant for management success?

    Hélia Marchante;Hélia Marchante;Helena Freitas;John H. Hoffmann

Frequent Co-Authors

Helena Freitas
Helena Freitas University of Coimbra
Michael D. Cramer
Michael D. Cramer University of Cape Town
Paul Holford
Paul Holford Western Sydney University
David M. Richardson
David M. Richardson Stellenbosch University
Joslin L. Moore
Joslin L. Moore Monash University
John R. U. Wilson
John R. U. Wilson South African National Biodiversity Institute
David C. Le Maitre
David C. Le Maitre Council for Scientific and Industrial Research
Wendy A. Stirk
Wendy A. Stirk University of KwaZulu-Natal
Joseph M. DiTomaso
Joseph M. DiTomaso University of California, Davis
Colleen T. Downs
Colleen T. Downs University of KwaZulu-Natal

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Related Online Degrees & Career Pathways

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