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Robert N. Coulson

D-Index & Metrics

Ecology and Evolution

D-Index
39
Citations
6124
World Ranking
6373
National Ranking
2163

Robert N. Coulson 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 N. Coulson 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: 181 publications — 67th percentile

67% of scientists in this discipline score the same or lower.

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

Robert N. Coulson 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 N. Coulson 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

Robert N. Coulson is affiliated with Texas A&M University in the United States and has published extensively in the fields of Agricultural and Biological Sciences and Environmental Science. Their research spans multiple subfields including Insect Science, Ecology, Evolution, Behavior and Systematics, Ecological Modeling, Ecology, and Genetics.

The scientist's work has been published in a variety of venues, with notable contributions appearing in Insects, Biodiversity and Conservation, and PLoS ONE. Other publication venues include Research Square and the Journal of Cotton Science.

Recent papers include:

  • A Native Bee, Melissodes tepaneca (Hymenoptera: Apidae), Benefits Cotton Production (2020, Insects)
  • Distribution and phenology of monarch butterfly larvae and their milkweed hosts in the South Central US (2022, Biodiversity and Conservation)
  • Crop and Semi-Natural Habitat Configuration Affects Diversity and Abundance of Native Bees (Hymenoptera: Anthophila) in a Large-Field Cotton Agroecosystem (2021, Insects)
  • Where the toad crosses the road: multi-method and cross-taxa Texas herpetofauna roadkill modeling for conservation planning (2024, Biodiversity and Conservation)
  • Modelling Red-Crowned Parrot (Psittaciformes: Amazona viridigenalis [Cassin, 1853]) distributions in the Rio Grande Valley of Texas using elevation and vegetation indices and their derivatives (2023, PLoS ONE)

The main research topics associated with Robert N. Coulson's work include:

  • Plant and animal studies
  • Insect and Pesticide Research
  • Species Distribution and Climate Change
  • Insect-Plant Interactions and Control
  • Insect and Arachnid Ecology and Behavior
  • Ecology and Vegetation Dynamics Studies
  • Wildlife Ecology and Conservation

Coulson has collaborated frequently with several researchers, including Isaac L. Esquivel, Michael J. Brewer, James L. Tracy, Katherine A. Parys, and Karen W. Wright.

Best Publications

  • MODELING INSECT DEVELOPMENT RATES: A LITERATURE REVIEW AND APPLICATION OF A BIOPHYSICAL MODEL

    Terence L. Wagner;Hsin-I Wu;Peter J. H. Sharpe;Robert M. Schoolfield

  • Modeling Distributions of Insect Development Time: a Literature Review and Application of the Weibull Function

    Terence L. Wagner;Hsin-I Wu;Peter J. H. Sharpe;R. N. Coulson

  • Forest Entomology: Ecology and Management

    Robert N Coulson;John A Witter

  • Population Dynamics of Bark Beetles

    Robert N. Coulson

  • The Southern Pine Beetle

    Richard O. Flamm;Robert N. Coulson;Thomas L. Payne

  • AN ARTIFICIAL INTELLIGENCE MODELLING APPROACH TO SIMULATING ANIMAL/HABITAT INTERACTIONS

    H. Saarenmaa;N.D. Stone;L.J. Folse;J.M. Packard

  • Africanization in the United States: Replacement of Feral European Honeybees (Apis mellifera L.) by an African Hybrid Swarm

    M. Alice Pinto;William L. Rubink;John C. Patton;Robert N. Coulson

  • Role of Southern Pine Beetle and Fire in Maintenance of Structure and Function of the Southeastern Coniferous Forest

    T. D. Schowalter;R. N. Coulson;D. A. Crossley

  • Impacts of silvicultural practices on soil and litter arthropod diversity in a Texas pine plantation

    Simon Bird;Robert N Coulson;D.A Crossley

  • Intelligent geographic information systems for natural resource management

    R. N. Coulson;C. N. Lovelady;R. O. Flamm;S. L. Spradling

  • Changes in soil and litter arthropod abundance following tree harvesting and site preparation in a loblolly pine (Pinus taeda L.) plantation

    Simon B. Bird;Robert N. Coulson;Richard F. Fisher

  • The role of lightning in the epidemiology of the Southern Pine Beetle1

    R. N. Coulson;P. B. Hennier;R. O. Flamm;E. J. Rykiel

  • RESOURCE UTILIZATION BY THE SOUTHERN PINE BEETLE, DENDROCTONUS FRONTALIS (COLEOPTERA: SCOLYTIDAE)

    Robert N. Coulson;Adil M. Mayyasi;J. L. Foltz;F. P. Hain

  • Heterogeneity of forest landscapes and the distribution and abundance of the southern pine beetle

    Robert N. Coulson;Bryan A. McFadden;Paul E. Pulley;Clark N. Lovelady

  • Computer-Assisted Decision-Making as Applied to Entomology

    Robert N. Coulson;Michael C. Saunders

  • Interspecific competition between Monochamus titillator and Dendroctonus frontalis.

    Robert N. Coulson;Adil M. Mayyasi;John L. Foltz;Fred P. Hain

  • Landscape ecological planning process for wetland, waterfowl, and farmland conservation

    Laura R. Musacchio;Robert N. Coulson

  • Disturbance propagation by bark beetles as an episodic landscape phenomenon

    Edward J. Rykiel;Robert N. Coulson;Peter J. H. Sharpe;Timothy F. H. Allen

  • Temporal pattern of africanization in a feral honeybee population from Texas inferred from mitochondrial DNA.

    M. Alice Pinto;M. Alice Pinto;William L. Rubink;Robert N. Coulson;John C. Patton

  • Bark beetle olfaction—II. Antennal morphology of sixteen species of Scolytidae (Coleoptera)☆

    Thomas L. Payne;Henry A. Moeck;Clyde D. Willson;Robert N. Coulson

  • Colonization of Disturbed Trees by the Southern Pine Bark Beetle Guild (Coleoptera: Scolytidae)

    Richard O. Flamm;Paul E. Pulley;Robert N. Coulson

  • Southern Pine Beetle II

    R. N. Coulson;Kier Klepzig

  • Forest Entomology: Ecology and Management.

    M. B. Usher;R. N. Coulson;J. A. Witter

Frequent Co-Authors

Kier D. Klepzig
Kier D. Klepzig Joseph W. Jones Ecological Research Center
J. Spencer Johnston
J. Spencer Johnston Texas A&M University
Markus Holopainen
Markus Holopainen University of Helsinki
Micky D. Eubanks
Micky D. Eubanks Texas A&M University
Tetsuro Matsuzawa
Tetsuro Matsuzawa California Institute of Technology
Sorin C. Popescu
Sorin C. Popescu Texas A&M University
Barbara J. Bentz
Barbara J. Bentz US Forest Service
William E. Grant
William E. Grant Texas A&M University

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Related Online Degrees & Career Pathways

Exploring Ecology and Evolution opens doors to many exciting and flexible career options. Many students are interested in related fields that offer dynamic and purpose-driven work environments. In today’s educational landscape, online degrees make it easier to tailor your studies toward your career goals.

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Best Scientists Citing Robert N. Coulson

Kenneth F. Raffa

Kenneth F. Raffa

University of Wisconsin–Madison

Publications: 39

Matthew P. Ayres

Matthew P. Ayres

Dartmouth College

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Conrad C. Labandeira

Conrad C. Labandeira

Smithsonian Institution

Publications: 18

Kier D. Klepzig

Kier D. Klepzig

Joseph W. Jones Ecological Research Center

Publications: 18

Barbara J. Bentz

Barbara J. Bentz

US Forest Service

Publications: 13

Brian H. Aukema

Brian H. Aukema

University of Minnesota

Publications: 13

Fredrik Schlyter

Fredrik Schlyter

Czech University of Life Sciences Prague

Publications: 13

John A. Byers

John A. Byers

Hebrew University of Jerusalem

Publications: 11

Myron P. Zalucki

Myron P. Zalucki

University of Queensland

Publications: 11

Jan Bogaert

Jan Bogaert

KU Leuven

Publications: 10

Benjamin P. Oldroyd

Benjamin P. Oldroyd

University of Sydney

Publications: 10

Yaghoub Fathipour

Yaghoub Fathipour

Tarbiat Modares University

Publications: 10

Alan A. Berryman

Alan A. Berryman

Washington State University

Publications: 10

Olle Anderbrant

Olle Anderbrant

Lund University

Publications: 9

John H. Borden

John H. Borden

Simon Fraser University

Publications: 8

Jean-Claude Grégoire

Jean-Claude Grégoire

Université Libre de Bruxelles

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