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Robert J. Toonen

D-Index & Metrics

Ecology and Evolution

D-Index
71
Citations
19711
World Ranking
1298
National Ranking
480

Robert J. Toonen 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 Robert J. Toonen 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: 271 publications — 88th percentile

88% of scientists in this discipline score the same or lower.

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

Robert J. Toonen 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 Robert J. Toonen 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: 71 D-Index — 85th percentile

85% of scientists in this discipline score the same or lower.

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

Overview

Robert J. Toonen is affiliated with the University of Hawaii at Manoa in the United States. Their scholarly work primarily spans the field of Environmental Science, with a distinct focus on Ecology, Oceanography, Global and Planetary Change, Genetics, and Molecular Biology.

The scientist's research explores multiple main topics, including:

  • Coral and Marine Ecosystems Studies
  • Marine and coastal plant biology
  • Marine and fisheries research
  • Genetic diversity and population structure
  • Ocean Acidification Effects and Responses
  • Environmental DNA in Biodiversity Studies
  • Marine Bivalve and Aquaculture Studies

Publishing frequently in several venues, some of the most recurrent outlets for their research include:

  • PeerJ
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Scientific Reports
  • Coral Reefs
  • Environmental DNA

Several recent papers reflect the range of research topics addressed by Robert J. Toonen:

  • Coral-bleaching responses to climate change across biological scales, 2022, Global Change Biology
  • Increasing comparability among coral bleaching experiments, 2020, Ecological Applications
  • The legacy of stress: Coral bleaching impacts reproduction years later, 2020, Functional Ecology
  • Poor data stewardship will hinder global genetic diversity surveillance, 2021, Proceedings of the National Academy of Sciences
  • Building a global genomics observatory: Using GEOME (the Genomic Observatories Metadatabase) to expedite and improve deposition and retrieval of genetic data and metadata for biodiversity research, 2020, Molecular Ecology Resources

The scientist frequently collaborates with several co-authors, including:

  • Christopher P. Jury
  • Andréa G. Grottoli
  • Zac H. Forsman
  • Rowan H. McLachlan
  • Brian W. Bowen

Best Publications

  • Microsatellites for ecologists: a practical guide to using and evaluating microsatellite markers

    Kimberly A. Selkoe;Robert J. Toonen

  • Population genetics, larval dispersal, and connectivity in marine systems

    Kimberley Weersing;Robert J. Toonen

  • Ocean currents help explain population genetic structure

    Crow White;Kimberly A. Selkoe;James T Watson;David A. Siegel

  • The origins of tropical marine biodiversity

    Brian W. Bowen;Luiz A. Rocha;Robert J. Toonen;Stephen A. Karl

  • Community ecology of mesophotic coral reef ecosystems

    S. E. Kahng;J. R. Garcia-Sais;H. L. Spalding;E. Brokovich

  • Defenses of Caribbean sponges against predatory reef fish. I. Chemical deterrency

    Pawlik;Chanas B;Toonen Rj;Fenical W

  • Marine connectivity: a new look at pelagic larval duration and genetic metrics of dispersal

    K. A. Selkoe;Robert J. Toonen

  • Taking the chaos out of genetic patchiness: seascape genetics reveals ecological and oceanographic drivers of genetic patterns in three temperate reef species.

    Kimberly A. Selkoe;James R. Watson;Crow White;Tal Ben Horin

  • Conservation implications of complex population structure: lessons from the loggerhead turtle (Caretta caretta)

    B. W. Bowen;A. L. Bass;L. Soares;R. J. Toonen

  • Increased throughput for fragment analysis on an ABI PRISM 377 automated sequencer using a membrane comb and STRand software.

    Robert J. Toonen;Shayne Hughes

  • A decade of seascape genetics: contributions to basic and applied marine connectivity

    KA Selkoe;CC D'Aloia;ED Crandall;M. Iacchei

  • ezRAD: a simplified method for genomic genotyping in non-model organisms

    Robert J. Toonen;Jonathan B. Puritz;Zac H. Forsman;Jonathan L. Whitney

  • Demystifying the RAD fad

    Jonathan B. Puritz;Mikhail V. Matz;Robert J. Toonen;Jesse N. Weber

  • Comparative phylogeography of the ocean planet.

    Brian W. Bowen;Michelle R. Gaither;Joseph D. DiBattista;Matthew Iacchei

  • Shape-shifting corals: Molecular markers show morphology is evolutionarily plastic in Porites

    Zac H Forsman;Daniel J Barshis;Cynthia L Hunter;Robert J Toonen

  • Protein expression and genetic structure of the coral Porites lobata in an environmentally extreme Samoan back reef: does host genotype limit phenotypic plasticity?

    D. J. Barshis;J. H. Stillman;R. D. Gates;R. J. Toonen

  • A review of contemporary patterns of endemism for shallow water reef fauna in the Red Sea

    Joseph D. DiBattista;Joseph D. DiBattista;May B. Roberts;Jessica Bouwmeester;Jessica Bouwmeester;Brian W. Bowen

  • Genetic evaluation of marine biogeographical barriers: perspectives from two widespread Indo-Pacific snappers (Lutjanus kasmira and Lutjanus fulvus)

    Michelle R. Gaither;Robert J. Toonen;D. Ross Robertson;Serge Planes

  • On the origin of endemic species in the Red Sea

    Joseph D. DiBattista;Joseph D. DiBattista;J. Howard Choat;Michelle R. Gaither;Michelle R. Gaither;Jean-Paul A. Hobbs

  • Coral‐bleaching responses to climate change across biological scales

    Unknown

  • Defining Boundaries for Ecosystem-Based Management: A Multispecies Case Study of Marine Connectivity across the Hawaiian Archipelago.

    Robert J. Toonen;Kimberly R. Andrews;Iliana B. Baums;Christopher E. Bird

  • biogeographical barriers: perspectives from two widespread Indo-Pacific snappers (Lutjanus kasmira and Lutjanus fulvus)

    Michelle R. Gaither;Robert J. Toonen;D. Ross Robertson;Serge Planes

Frequent Co-Authors

Brian W. Bowen
Brian W. Bowen University of Hawaii at Manoa
Michelle R. Gaither
Michelle R. Gaither University of Central Florida
Kimberly A. Selkoe
Kimberly A. Selkoe University of California, Santa Barbara
Ruth D. Gates
Ruth D. Gates University of Hawaii at Manoa
Richard K. Grosberg
Richard K. Grosberg University of California, Davis
Cynthia Riginos
Cynthia Riginos University of Queensland
Joseph D. DiBattista
Joseph D. DiBattista Griffith University
Sophie von der Heyden
Sophie von der Heyden Stellenbosch University
Iliana B. Baums
Iliana B. Baums Pennsylvania State University
Neil M Davies
Neil M Davies University College London

External Links

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Related Online Degrees & Career Pathways

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For those interested in healthcare and environmental science intersections, programs with reliable credentials—like those having capella university nursing accreditation—provide confidence in the value of your degree. Flexible paths such as a bsn to msn online can complement careers in public health, environmental health, or bioinformatics.

If you balance other commitments, such as military service, you’ll find support from online military friendly colleges that provide tailored resources for veterans and service members. Choosing the right combination of accreditation, affordability, and flexibility can open pathways from your Ecology and Evolution studies to rewarding careers in research, conservation, healthcare, education, and beyond.

Best Scientists Citing Robert J. Toonen

Michael L. Berumen

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King Abdullah University of Science and Technology

Publications: 101

Joseph D. DiBattista

Joseph D. DiBattista

Griffith University

Publications: 65

Brian W. Bowen

Brian W. Bowen

University of Hawaii at Manoa

Publications: 61

Joseph R. Pawlik

Joseph R. Pawlik

University of North Carolina Wilmington

Publications: 61

Luiz A. Rocha

Luiz A. Rocha

California Academy of Sciences

Publications: 44

Serge Planes

Serge Planes

PSL University

Publications: 42

Ruth D. Gates

Ruth D. Gates

University of Hawaii at Manoa

Publications: 39

Tom C. L. Bridge

Tom C. L. Bridge

Queensland Museum

Publications: 36

Francesca Benzoni

Francesca Benzoni

King Abdullah University of Science and Technology

Publications: 35

Pim Bongaerts

Pim Bongaerts

California Academy of Sciences

Publications: 34

Ester A. Serrão

Ester A. Serrão

University of Algarve

Publications: 33

Eric A. Treml

Eric A. Treml

Australian Institute of Marine Science

Publications: 33

Madeleine J. H. van Oppen

Madeleine J. H. van Oppen

University of Melbourne

Publications: 33

Jean-Paul A. Hobbs

Jean-Paul A. Hobbs

Curtin University

Publications: 32

Leslie A. Lyons

Leslie A. Lyons

University of Missouri

Publications: 30

Cynthia Riginos

Cynthia Riginos

University of Queensland

Publications: 30

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