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Giles E. St. J. Hardy

Giles E. St. J. Hardy

D-Index & Metrics

Plant Science and Agronomy

D-Index
66
Citations
13818
World Ranking
885
National Ranking
82

Ecology and Evolution

D-Index
66
Citations
13827
World Ranking
1709
National Ranking
140

Giles E. St. J. Hardy publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Giles E. St. J. Hardy sits on this spectrum.

36–40 publications: 2 scientists 41–45 publications: 7 scientists 46–50 publications: 40 scientists 51–55 publications: 58 scientists 56–60 publications: 60 scientists 61–65 publications: 107 scientists 66–70 publications: 130 scientists 71–75 publications: 153 scientists 76–80 publications: 191 scientists 81–85 publications: 199 scientists 86–90 publications: 206 scientists 91–95 publications: 218 scientists 96–100 publications: 226 scientists 101–105 publications: 227 scientists 106–110 publications: 247 scientists 111–115 publications: 255 scientists 116–120 publications: 253 scientists 121–125 publications: 233 scientists 126–130 publications: 219 scientists 131–135 publications: 201 scientists 136–140 publications: 194 scientists 141–145 publications: 176 scientists 146–150 publications: 157 scientists 151–155 publications: 147 scientists 156–160 publications: 151 scientists 161–165 publications: 159 scientists 166–170 publications: 137 scientists 171–175 publications: 128 scientists 176–180 publications: 126 scientists 181–185 publications: 98 scientists 186–190 publications: 114 scientists 191–195 publications: 100 scientists 196–200 publications: 90 scientists 201–205 publications: 71 scientists 206–210 publications: 98 scientists 211–215 publications: 70 scientists 216–220 publications: 86 scientists 221–225 publications: 61 scientists 226–230 publications: 58 scientists 231–235 publications: 53 scientists 236–240 publications: 64 scientists 241–245 publications: 39 scientists 246–250 publications: 46 scientists 251–255 publications: 51 scientists 256–260 publications: 36 scientists 261–265 publications: 44 scientists 266–270 publications: 35 scientists 271–275 publications: 30 scientists 276–280 publications: 33 scientists 281–285 publications: 35 scientists 286–290 publications: 36 scientists 291–295 publications: 26 scientists 296–300 publications: 26 scientists 301–305 publications: 31 scientists 306–310 publications: 30 scientists 311–315 publications: 21 scientists 316–320 publications: 29 scientists 321–325 publications: 14 scientists 326–330 publications: 15 scientists 331–335 publications: 15 scientists 336–340 publications: 17 scientists 341–345 publications: 15 scientists 346–350 publications: 12 scientists 351–355 publications: 17 scientists 356–360 publications: 18 scientists 361–365 publications: 12 scientists 366–370 publications: 11 scientists 371–375 publications: 6 scientists 376–380 publications: 6 scientists 381–385 publications: 11 scientists 386–390 publications: 9 scientists 391–395 publications: 10 scientists 396–400 publications: 8 scientists 401–405 publications: 4 scientists 406–410 publications: 9 scientists 411–415 publications: 11 scientists 416–420 publications: 4 scientists 421–425 publications: 7 scientists 426–430 publications: 4 scientists 431–435 publications: 3 scientists 436–440 publications: 5 scientists 441–445 publications: 8 scientists 446–450 publications: 6 scientists 451–455 publications: 7 scientists 456–460 publications: 5 scientists 461–465 publications: 6 scientists 466 publications: 2 scientists 467+ publications: 99 scientists
36 publications 467+

This scientist: 484 publications — 99th percentile

99% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 467 publications or more.

Giles E. St. J. Hardy D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Giles E. St. J. Hardy sits on this spectrum.

30 D-Index: 200 scientists 31 D-Index: 236 scientists 32 D-Index: 253 scientists 33 D-Index: 283 scientists 34 D-Index: 288 scientists 35 D-Index: 240 scientists 36 D-Index: 246 scientists 37 D-Index: 243 scientists 38 D-Index: 247 scientists 39 D-Index: 229 scientists 40 D-Index: 232 scientists 41 D-Index: 230 scientists 42 D-Index: 228 scientists 43 D-Index: 219 scientists 44 D-Index: 193 scientists 45 D-Index: 164 scientists 46 D-Index: 158 scientists 47 D-Index: 143 scientists 48 D-Index: 131 scientists 49 D-Index: 127 scientists 50 D-Index: 122 scientists 51 D-Index: 122 scientists 52 D-Index: 110 scientists 53 D-Index: 102 scientists 54 D-Index: 98 scientists 55 D-Index: 79 scientists 56 D-Index: 85 scientists 57 D-Index: 88 scientists 58 D-Index: 91 scientists 59 D-Index: 62 scientists 60 D-Index: 61 scientists 61 D-Index: 59 scientists 62 D-Index: 54 scientists 63 D-Index: 61 scientists 64 D-Index: 59 scientists 65 D-Index: 58 scientists 66 D-Index: 41 scientists 67 D-Index: 49 scientists 68 D-Index: 39 scientists 69 D-Index: 32 scientists 70 D-Index: 40 scientists 71 D-Index: 47 scientists 72 D-Index: 38 scientists 73 D-Index: 28 scientists 74 D-Index: 29 scientists 75 D-Index: 28 scientists 76 D-Index: 22 scientists 77 D-Index: 21 scientists 78 D-Index: 25 scientists 79 D-Index: 26 scientists 80 D-Index: 19 scientists 81 D-Index: 16 scientists 82 D-Index: 12 scientists 83 D-Index: 16 scientists 84 D-Index: 14 scientists 85 D-Index: 11 scientists 86 D-Index: 17 scientists 87 D-Index: 13 scientists 88 D-Index: 10 scientists 89 D-Index: 12 scientists 90 D-Index: 18 scientists 91 D-Index: 16 scientists 92 D-Index: 16 scientists 93 D-Index: 17 scientists 94 D-Index: 12 scientists 95 D-Index: 8 scientists 96 D-Index: 9 scientists 97 D-Index: 9 scientists 98 D-Index: 11 scientists 99 D-Index: 12 scientists 100 D-Index: 5 scientists 101 D-Index: 8 scientists 102 D-Index: 4 scientists 103 D-Index: 11 scientists 104 D-Index: 5 scientists 105 D-Index: 9 scientists 106 D-Index: 7 scientists 107 D-Index: 4 scientists 108 D-Index: 8 scientists 109+ D-Index: 99 scientists
30 D-Index 109+

This scientist: 66 D-Index — 87th percentile

87% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 109 D-Index or more.

Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Botany
  • Ecosystem

His primary scientific interests are in Botany, Ecology, Phytophthora cinnamomi, Ecosystem and Rhizosphere. His Botany research focuses on Eucalyptus, Eucalyptus marginata, Taxonomy, Phytophthora and Botryosphaeria. His Phytophthora study incorporates themes from Streptomyces violascens, Streptomyces and Root rot.

His study looks at the relationship between Phytophthora cinnamomi and fields such as Plant community, as well as how they intersect with chemical problems. His biological study spans a wide range of topics, including Sporangium, Pythium and Hypha. His Biodiversity research is multidisciplinary, relying on both Habitat, Digging and Ecosystem services.

His most cited work include:

  • Is the loss of Australian digging mammals contributing to a deterioration in ecosystem function (144 citations)
  • The 10 Australian ecosystems most vulnerable to tipping points (141 citations)
  • Seven new species of the Botryosphaeriaceae from baobab and other native trees in Western Australia (98 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of investigation include Ecology, Botany, Phytophthora cinnamomi, Phytophthora and Agroforestry. His is doing research in Ecosystem, Habitat, Biodiversity, Woodland and Vegetation, both of which are found in Ecology. His Botany study combines topics in areas such as Pathogen, Inoculation and Phylogenetic tree.

His Phytophthora cinnamomi research includes themes of Fungicide, Banksia and Native plant. Giles E. St. J. Hardy combines subjects such as Taxon, Range and Rhizosphere with his study of Phytophthora. While the research belongs to areas of Agroforestry, Giles E. St. J. Hardy spends his time largely on the problem of Forestry, intersecting his research to questions surrounding Canopy.

He most often published in these fields:

  • Ecology (40.99%)
  • Botany (27.42%)
  • Phytophthora cinnamomi (24.54%)

What were the highlights of his more recent work (between 2017-2021)?

  • Ecology (40.99%)
  • Phytophthora (24.28%)
  • Phytophthora cinnamomi (24.54%)

In recent papers he was focusing on the following fields of study:

His primary areas of study are Ecology, Phytophthora, Phytophthora cinnamomi, Horticulture and Ecosystem. His work in Ecology is not limited to one particular discipline; it also encompasses Corymbia calophylla. His work deals with themes such as Biosecurity, Phylogenetic tree, Phylogenetics, Community composition and Generalist and specialist species, which intersect with Phytophthora.

The Phytophthora cinnamomi study combines topics in areas such as Soil type, Soil water, Inoculation, Water content and Urban forest. Giles E. St. J. Hardy has included themes like Terrestrial plant, Biodiversity and Biota in his Ecosystem study. In his research, Rhizosphere is intimately related to Botany, which falls under the overarching field of Threatened species.

Between 2017 and 2021, his most popular works were:

  • Subcontinental heat wave triggers terrestrial and marine, multi-taxa responses. (41 citations)
  • eDNA from roots: a robust tool for determining Phytophthora communities in natural ecosystems (19 citations)
  • Global biogeography and invasion risk of the plant pathogen genus Phytophthora (16 citations)

In his most recent research, the most cited papers focused on:

  • Ecology
  • Botany
  • Ecosystem

The scientist’s investigation covers issues in Ecology, Phytophthora, Agronomy, Corymbia calophylla and Biodiversity. His Ecology research includes elements of Natural selection and Heritability. Giles E. St. J. Hardy interconnects Community, Biosecurity and Community composition in the investigation of issues within Phytophthora.

His Agronomy research is multidisciplinary, incorporating elements of Biomass, Agriculture, Urea and Host. His Corymbia calophylla study integrates concerns from other disciplines, such as Allocasuarina fraseriana, Eucalyptus and Abiotic stress. His Biodiversity research incorporates themes from Agroforestry and Ecosystem.

Best Publications

  • Biological control of Sclerotinia minor using a chitinolytic bacterium and actinomycetes

    K.A. El-Tarabily;M.H. Soliman;A.H. Nassar;H.A. Al-Hassani

  • Fungal Planet description sheets: 469-557

    Pedro W. Crous;Pedro W. Crous;Michael J. Wingfield;Treena I. Burgess;G. E.St J. Hardy

  • Is the loss of Australian digging mammals contributing to a deterioration in ecosystem function

    Patricia A. Fleming;Hannah Anderson;Amy S. Prendergast;Michael R. Bretz

  • Fungal Planet description sheets: 400–468

    P. W. Crous;P. W. Crous;M. J. Wingfield;D. M. Richardson;J. J. Le Roux

  • The future of phosphite as a fungicide to control the soilborne plant pathogen Phytophthora cinnamomi in natural ecosystems

    G. E. St.J. Hardy;S. Barrett;B. L. Shearer

  • Current and projected global distribution of Phytophthora cinnamomi, one of the world's worst plant pathogens.

    Treena I. Burgess;John K. Scott;John K. Scott;Keith L. Mcdougall;Michael J. C. Stukely

  • Sudden forest canopy collapse corresponding with extreme drought and heat in a mediterranean-type eucalypt forest in southwestern Australia

    George Matusick;Katinka X. Ruthrof;Niels C. Brouwers;Bernard Dell

  • Fungal Planet description sheets: 625-715

    P.W. Crous;M.J. Wingfield;T.I. Burgess;A.J. Carnegie

  • The 10 Australian ecosystems most vulnerable to tipping points

    William F. Laurance;Bernard Dell;Stephen M. Turton;Michael J. Lawes

  • Fungal Planet description sheets: 716-784.

    Pedro W. Crous;Michael J. Wingfield;T.I. Burgess;G.E.St.J. Hardy

  • Fungal Planet description sheets: 107–127

    P.W. Crous;B.A. Summerell;R.G. Shivas;T.I. Burgess

  • Multiple new Phytophthora species from ITS Clade 6 associated with natural ecosystems in Australia: evolutionary and ecological implications

    T. Jung;M.J.C. Stukely;G.E.St.J. Hardy;D. White

  • Fungal Planet description sheets: 558-624

    P.W. Crous;M.J. Wingfield;T.I. Burgess;G.E.St.J. Hardy

  • Phytophthora multivora sp. nov., a new species recovered from declining Eucalyptus, Banksia, Agonis and other plant species in Western Australia

    P.M. Scott;T.I. Burgess;P.A. Barber;B.L. Shearer

  • Seven new species of the Botryosphaeriaceae from baobab and other native trees in Western Australia

    Draginja Pavlic;Michael J. Wingfield;Paul Barber;Bernard Slippers

  • Underappreciated plant vulnerabilities to heat waves

    David D. Breshears;Joseph B. Fontaine;Katinka X. Ruthrof;Jason P. Field

  • Phosphite primed defence responses and enhanced expression of defence genes in Arabidopsis thaliana infected with Phytophthora cinnamomi

    L. Eshraghi;J. Anderson;J. Anderson;N. Aryamanesh;B. Shearer;B. Shearer

  • Subcontinental heat wave triggers terrestrial and marine, multi-taxa responses.

    Katinka X. Ruthrof;David D. Breshears;Joseph B. Fontaine;Ray H. Froend

  • Pathogenic Botryosphaeriaceae associated with Mangifera indica in the Kimberley Region of Western Australia

    Monique L. Sakalidis;Jane D. Ray;Vincent Lanoiselet;Giles E. StJ. Hardy

  • The potential for the biological control of cavity-spot disease of carrots, caused by Pythium coloratum, by streptomycete and non-streptomycete actinomycetes

    Khaled A. El‐Tarabily;Giles E. St. J. Hardy;Krishnapillai Sivasithamparam;Assem M. Hussein

  • International variation in phytosanitary legislation and regulations governing importation of plants for planting

    R. Eschen;K. Britton;E. Brockerhoff;T. Burgess

  • Endophytes as potential pathogens of the baobab species Adansonia gregorii: a focus on the Botryosphaeriaceae

    Monique L. Sakalidis;Giles E. StJ. Hardy;Treena I. Burgess

  • Survival of Phytophthora cinnamomi as oospores, stromata, and thick-walled chlamydospores in roots of symptomatic and asymptomatic annual and herbaceous perennial plant species

    Michael Crone;Jen A. McComb;Philip A. O’Brien;Giles E.St J. Hardy

  • Phosphorus nutrition of phosphorus-sensitive Australian native plants: threats to plant communities in a global biodiversity hotspot

    Hans Lambers;Idriss Ahmedi;Idriss Ahmedi;Oliver Berkowitz;Oliver Berkowitz;Chris Dunne;Chris Dunne

  • Landscape-scale assessment of tree crown dieback following extreme drought and heat in a Mediterranean eucalypt forest ecosystem

    Niels Brouwers;George Matusick;Katinka Ruthrof;Thomas Lyons

  • Defining the phosphite-regulated transcriptome of the plant pathogen Phytophthora cinnamomi

    Michaela King;Wayne Reeve;Mark B. Van der Hoek;Nari Williams

  • How drought-induced forest die-off alters microclimate and increases fuel loadings and fire potentials

    Katinka X. Ruthrof;Joseph B. Fontaine;George Matusick;George Matusick;David D. Breshears

  • Use of the Genealogical Sorting Index (GSI) to delineate species boundaries in the Neofusicoccum parvum–Neofusicoccum ribis species complex

    Monique L. Sakalidis;Giles E. St. J. Hardy;Treena I. Burgess

  • Plant functional traits differ in adaptability and are predicted to be differentially affected by climate change.

    Collin W Ahrens;Margaret E Andrew;Richard A Mazanec;Katinka X Ruthrof

  • Botryosphaeria species from Eucalyptus in Australia are pleoanamorphic, producing dichomera synanamorphs in culture.

    Paul A. Barber;Treena J. Burgess;Giles E. St.J. Hardy;Bernard Slippers

  • Gene flow of the canker pathogen Botryosphaeria australis between Eucalyptus globulus plantations and native eucalypt forests in Western Australia

    Treena I. Burgess;Monique L. Sakalidis;Giles E. S. T. J. Hardy

  • Characterization of Phytophthora hybrids from ITS clade 6 associated with riparian ecosystems in South Africa and Australia.

    Jan Hendrik Nagel;Marieka Gryzenhout;Bernard Slippers;Michael J. Wingfield

  • Phenotypic variation in a clonal lineage of two Phytophthora cinnamomi populations from Western Australia

    Daniel Huberli;Inez C. Tommerup;Mark P. Dobrowolski;Michael C. Calver

  • Phytophthora bilorbang sp. nov., a new species associated with the decline of Rubus anglocandicans (European blackberry) in Western Australia

    Sonia Aghighi;Giles E. St. J. Hardy;John K. Scott;Treena I. Burgess

  • New insights into the survival strategy of the invasive soilborne pathogen Phytophthora cinnamomiin different natural ecosystems in Western Australia

    T. Jung;I.J. Colquhoun;G.E.S.J. Hardy

Frequent Co-Authors

Treena I. Burgess
Treena I. Burgess Murdoch University
Bernard Dell
Bernard Dell Murdoch University
Patricia A. Fleming
Patricia A. Fleming Murdoch University
Jen A. McComb
Jen A. McComb Murdoch University
Richard J. Hobbs
Richard J. Hobbs University of Western Australia
Joseph B. Fontaine
Joseph B. Fontaine Murdoch University
Krishnapillai Sivasithamparam
Krishnapillai Sivasithamparam University of Western Australia
Oliver Berkowitz
Oliver Berkowitz La Trobe University
Erik J. Veneklaas
Erik J. Veneklaas University of Western Australia
Michael J. Wingfield
Michael J. Wingfield University of Pretoria

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