World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
58
Citations
10765
World Ranking
1368
National Ranking
355

Everett M. Hansen 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 Everett M. Hansen 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: 206 publications — 78th percentile

78% of scientists in this discipline score the same or lower.

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

Everett M. Hansen 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 Everett M. Hansen 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: 58 D-Index — 80th percentile

80% 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:

  • Botany
  • Ecology
  • Fungus

His primary areas of investigation include Botany, Ecology, Phytophthora, Phytophthora ramorum and Taxonomy. Everett M. Hansen has researched Botany in several fields, including Microsatellite and Amplified fragment length polymorphism. Everett M. Hansen combines subjects such as Pathogen and Root rot with his study of Ecology.

His Phytophthora research incorporates elements of Taxon and Fagaceae. His Phytophthora ramorum research incorporates themes from Lithocarpus and Infestation. His Taxonomy study combines topics from a wide range of disciplines, such as Phylogeography and Phytophthora megasperma.

His most cited work include:

  • Phytophthora ramorum: integrative research and management of an emerging pathogen in California and Oregon forests. (376 citations)
  • Sudden Oak Death and Associated Diseases Caused by Phytophthora ramorum (147 citations)
  • Multiple new phenotypic taxa from trees and riparian ecosystems in Phytophthora gonapodyides-P. megasperma ITS Clade 6, which tend to be high-temperature tolerant and either inbreeding or sterile. (139 citations)

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

His main research concerns Botany, Ecology, Phytophthora ramorum, Phytophthora and Sudden oak death. The study incorporates disciplines such as Inoculation and Internal transcribed spacer in addition to Botany. As part of the same scientific family, Everett M. Hansen usually focuses on Ecology, concentrating on Genetic diversity and intersecting with Population genetics.

Everett M. Hansen interconnects Host plants, Biological dispersal, Forestry and Lithocarpus in the investigation of issues within Phytophthora ramorum. Everett M. Hansen has included themes like Vaccinium ovatum and Rhododendron macrophyllum in his Lithocarpus study. His Phytophthora research also works with subjects such as

  • Clade which is related to area like Taxonomy,
  • Quercus agrifolia most often made with reference to Invasive species.

He most often published in these fields:

  • Botany (43.56%)
  • Ecology (36.81%)
  • Phytophthora ramorum (36.20%)

What were the highlights of his more recent work (between 2013-2021)?

  • Ecology (36.81%)
  • Phytophthora (30.06%)
  • Botany (43.56%)

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

Everett M. Hansen focuses on Ecology, Phytophthora, Botany, Sudden oak death and Phytophthora ramorum. His work on Range and Host as part of general Ecology study is frequently connected to Pluvialis and Phytophthora pluvialis, therefore bridging the gap between diverse disciplines of science and establishing a new relationship between them. The Phytophthora study combines topics in areas such as Forest ecology and Clade.

His Botany study integrates concerns from other disciplines, such as Inoculation and DNA sequencing. His studies deal with areas such as Pathogen and Forestry as well as Sudden oak death. His Phytophthora ramorum study which covers Biological dispersal that intersects with Outbreak, Infestation and Epidemiology.

Between 2013 and 2021, his most popular works were:

  • Strategies of attack and defence in woody plant-Phytophthora interactions (66 citations)
  • Compendium of Conifer Diseases (63 citations)
  • Phytophthora Species Emerging as Pathogens of Forest Trees (44 citations)

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

  • Botany
  • Ecology
  • Fungus

Everett M. Hansen spends much of his time researching Phytophthora, Botany, Ecology, Phytophthora ramorum and Woody plant. His research on Phytophthora focuses in particular on Phytophthora cinnamomi. The various areas that Everett M. Hansen examines in his Botany study include Common species and Species diversity.

In the subject of general Ecology, his work in Riparian zone is often linked to Aerial survey, Period and Rhizosphere, thereby combining diverse domains of study. His work in the fields of Sudden oak death overlaps with other areas such as Early introduction. His work carried out in the field of Woody plant brings together such families of science as Host plants, Stem bark and Compendium.

Best Publications

  • Climate Change and Bark Beetles of the Western United States and Canada: Direct and Indirect Effects

    Barbara J. Bentz;Jacques Régnière;Christopher J Fettig;E. Matthew Hansen

  • Phytophthora ramorum: integrative research and management of an emerging pathogen in California and Oregon forests.

    David M. Rizzo;Matteo Garbelotto;Everett M. Hansen

  • Multiple new phenotypic taxa from trees and riparian ecosystems in Phytophthora gonapodyides-P. megasperma ITS Clade 6, which tend to be high-temperature tolerant and either inbreeding or sterile.

    Clive M. Brasier;David E.L. Cooke;James M. Duncan;Everett M. Hansen

  • Managing Port-Orford-Cedar and the Introduced Pathogen Phytophthora lateralis.

    Everett M. Hansen;Donald J. Goheen;Erik S. Jules;Barbara Ullian

  • Sudden Oak Death and Associated Diseases Caused by Phytophthora ramorum

    J. M. Davidson;S. Werres;M. Garbelotto;E. M. Hansen

  • PHELLINUS WEIRII AND OTHER NATIVE ROOT PATHOGENS AS DETERMINANTS OF FOREST STRUCTURE AND PROCESS IN WESTERN NORTH AMERICA.

    E.M. Hansen;Ellen Michaels Goheen

  • Phytophthora Beyond Agriculture

    Everett M. Hansen;Paul W. Reeser;Wendy Sutton

  • Three new species of Phytophthora from European oak forests

    Thomas Jung;Everett M. Hansen;Lori Winton;Wolfgang Osswald

  • Incidence and Impact of Swiss Needle Cast in Forest Plantations of Douglas-fir in Coastal Oregon

    E. M. Hansen;J. K. Stone;B. R. Capitano;P. Rosso

  • Susceptibility of Oregon Forest Trees and Shrubs to Phytophthora ramorum: A Comparison of Artificial Inoculation and Natural Infection

    E. M. Hansen;J. L. Parke;W. Sutton

  • Phytophthora species in oak forests of north-east France

    Everett Hansen;Claude Delatour

  • Phytophthora species in forest streams in Oregon and Alaska.

    Paul W. Reeser;Wendy Sutton;Everett M. Hansen;Philippe Remigi

  • Phytophthora-ID.org: A Sequence-Based Phytophthora Identification Tool

    Niklaus J Grünwald;Frank N Martin;Meredith M Larsen;Christopher M Sullivan

  • Simultaneous One-Tube Quantification of Host and Pathogen DNA with Real-Time Polymerase Chain Reaction

    L. M. Winton;J. K. Stone;L. S. Watrud;E. M. Hansen

  • Strategies of attack and defence in woody plant-Phytophthora interactions

    W. Oßwald;F. Fleischmann;D. Rigling;A. C. Coelho

  • Sudden Oak Death Caused by Phytophthora ramorum in Oregon.

    E. M. Goheen;E. M. Hansen;A. Kanaskie;M. G. McWilliams

  • Population dynamics of the sudden oak death pathogen Phytophthora ramorum in Oregon from 2001 to 2004.

    S. Prospero;E. M. Hansen;N. J. Grünwald;N. J. Grünwald;L. M. Winton

  • The taxonomic structure of Phytophthora megasperma: evidence for emerging biological species groups.

    E.M. Hansen;C.M. Brasier;D.S. Shaw;P.B. Hamm

  • Phytophthora Species Emerging as Pathogens of Forest Trees

    Everett M. Hansen

  • Phytophthora austrocedrae sp. nov., a new species associated with Austrocedrus chilensis mortality in Patagonia (Argentina)

    Alina G. Greslebin;Everett M. Hansen;Wendy Sutton

  • Epidemiology of Phytophthora ramorum in Oregon tanoak forests

    E. M. Hansen;A. Kanaskie;S. Prospero;M. McWilliams

  • Phytophthora rosacearum and P. sansomeana, new species segregated from the Phytophthora megasperma "complex".

    Everett M. Hansen;Wayne F. Wilcox;Paul W. Reeser;Wendy Sutton

Frequent Co-Authors

Niklaus J. Grünwald
Niklaus J. Grünwald Oregon State University
Jennifer L. Parke
Jennifer L. Parke Oregon State University
Simone Prospero
Simone Prospero Swiss Federal Institute for Forest, Snow and Landscape Research
Philip B. Hamm
Philip B. Hamm Oregon State University
Clive M. Brasier
Clive M. Brasier Forestry Commission England
Cécile Robin
Cécile Robin University of Rennes
Matteo Garbelotto
Matteo Garbelotto University of California, Berkeley
AnnaMaria Vettraino
AnnaMaria Vettraino Tuscia University
Ross K. Meentemeyer
Ross K. Meentemeyer North Carolina State University
Andrea Vannini
Andrea Vannini Tuscia University

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