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Thomas P. Sullivan

D-Index & Metrics

Ecology and Evolution

D-Index
49
Citations
6562
World Ranking
4098
National Ranking
280

Thomas P. Sullivan 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 Thomas P. Sullivan 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: 191 publications — 71st percentile

71% of scientists in this discipline score the same or lower.

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

Thomas P. Sullivan 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 Thomas P. Sullivan 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: 49 D-Index — 53rd percentile

53% of scientists in this discipline score the same or lower.

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

Overview

Thomas P. Sullivan is affiliated with the University of British Columbia in Canada and focuses primarily on research in Environmental Science. Their work covers several subfields including Ecology, Global and Planetary Change, Nature and Landscape Conservation, Insect Science, and Small Animals. The main topics addressed in their research involve fire effects on ecosystems, ecology and vegetation dynamics studies, wildlife ecology and conservation, forest ecology and biodiversity studies, animal ecology and behavior studies, forest ecology and management, and forest management and policy.

The scientist has published multiple papers spanning over a decade, with recent works including:

  • "Twenty-Five Years after Stand Thinning and Repeated Fertilization in Lodgepole Pine Forest: Implications for Tree Growth, Stand Structure, and Carbon Sequestration" (2020) in Forests
  • "Acceleration of Forest Structural Development for Large Trees and Mammals: Restoration in Decades or Centuries?" (2021) in Forests
  • "Thirty-year responses of ecosystem components to stand thinning in lodgepole pine forest: Old-forest attributes, stand structure, and forest-floor small mammals" (2025) in Forest Ecology and Management
  • "Woody Debris Structures on Large Clearcut Openings: Oases for Small Mustelids and Prey Species?" (2023) in SSRN Electronic Journal
  • "Restoration of Coniferous Forest and Myodes gapperi: Responses to Thinning, Fertilization, and Succession over a 45-Year Period" (2025) in Forests

The researcher's work has appeared predominantly in the journal Forests, with three publications there. Other venues include Forest Ecology and Management, SSRN Electronic Journal, Crop Protection, and Journal of Arid Environments.

Frequent collaborators include Druscilla S. Sullivan, Pontus M.F. Lindgren, Douglas B. Ransome, Walt Klenner, and Lisa Zabek, reflecting ongoing cooperative research efforts in their focus areas.

Best Publications

  • Use of predator odors as repellents to reduce feeding damage by herbivores : II. Black-tailed deer (Odocoileus hemionus columbianus).

    Thomas P. Sullivan;Lance O. Nordstrom;Druscilla S. Sullivan

  • Influence of variable retention harvests on forest ecosystems. II. Diversity and population dynamics of small mammals

    Thomas P. Sullivan;Druscilla S. Sullivan

  • STAND STRUCTURE AND SMALL MAMMALS IN YOUNG LODGEPOLE PINE FOREST: 10-YEAR RESULTS AFTER THINNING

    Thomas P. Sullivan;Druscilla S. Sullivan;Pontus M. F. Lindgren

  • Use of predator odors as repellents to reduce feeding damage by herbivores : III. Montane and meadow voles (Microtus montanus andMicrotus pennsylvanicus).

    Thomas P. Sullivan;Douglas R. Crump;Druscilla S. Sullivan

  • Clearcutting and burning of northern spruce-fir forests: implications for small mammal communities

    Thomas P. Sullivan;R. A. Lautenschlager;Robert G. Wagner

  • DEMOGRAPHY AND DISPERSAL IN ISLAND AND MAINLAND POPULATIONS OF THE DEER MOUSE, PEROMYSCUS MANICULATUS'

    Thomas Priestlay Sullivan

  • Use of predator odors as repellents to reduce feeding damage by herbivores : I. Snowshoe hares (Lepus americanus).

    Thomas P. Sullivan;Lance O. Nordstrom;Druscilla S. Sullivan

  • Long-term responses of ecosystem components to stand thinning in young lodgepole pine forest: II. Diversity and population dynamics of forest floor small mammals

    Thomas P. Sullivan;Druscilla S. Sullivan;Pontus M.F. Lindgren;Douglas B. Ransome

  • Responses of Red Squirrel (Tamiasciurus hudsonicus) Populations to Supplemental Food

    Thomas P. Sullivan

  • Partial and clear-cut harvesting of high-elevation spruce-fir forests: implications for small mammal communities

    Walt Klenner;Thomas P. Sullivan

  • Vegetation management and ecosystem disturbance: impact of glyphosate herbicide on plant and animal diversity in terrestrial systems

    Thomas P. Sullivan;Druscilla S. Sullivan

  • A call for applying trophic structure in ecological restoration

    Lauchlan H. Fraser;William L. Harrower;Heath W. Garris;Scott Davidson

  • If we build habitat, will they come? Woody debris structures and conservation of forest mammals

    Thomas P. Sullivan;Druscilla S. Sullivan;Pontus M. F. Lindgren;Douglas B. Ransome

  • SMALL MAMMALS AND STAND STRUCTURE IN YOUNG PINE, SEED-TREE, AND OLD-GROWTH FOREST, SOUTHWEST CANADA

    Thomas P. Sullivan;Druscilla S. Sullivan;Pontus M. F. Lindgren

  • Use of predator odors as repellents to reduce feeding damage by herbivores : IV. Northern pocket gophers (Thomomys talpoides).

    Thomas P. Sullivan;Douglas R. Crump;Druscilla S. Sullivan

  • Influence of mustelid scent-gland compounds on suppression of feeding by snowshoe hares (Lepus americanus).

    Thomas P. Sullivan;Douglas R. Crump

  • Changes in diversity of plant and small mammal communities after herbicide application in sub-boreal spruce forest

    Thomas P. Sullivan;Thomas P. Sullivan;Robert G. Wagner;Douglas G. Pitt;R. A. Lautenschlager

  • Influence of alternative vegetation management treatments on conifer plantation attributes: abundance, species diversity, and structural diversity

    Pontus M.F Lindgren;Thomas P Sullivan

  • THE USE OF ALTERNATIVE FOODS TO REDUCE LODGEPOLE PINE SEED PREDATION BY SMALL MAMMALS

    Thomas P. Sullivan;Druscilla S. Sullivan

  • Influence of variable retention harvests on forest ecosystems. I. Diversity of stand structure

    Thomas P. Sullivan;Druscilla S. Sullivan;Pontus M.F. Lindgren

  • Partial and clearcut harvesting of dry Douglas-fir forests : Implications for small mammal communities

    Walt Klenner;Thomas P. Sullivan

Frequent Co-Authors

Druscilla S. Sullivan
Druscilla S. Sullivan Mammal Research Institute
Robert G. Wagner
Robert G. Wagner Purdue University West Lafayette
Charles J. Krebs
Charles J. Krebs University of British Columbia
Rudy Boonstra
Rudy Boonstra University of Toronto
Roy Turkington
Roy Turkington University of British Columbia
Paul D. N. Hebert
Paul D. N. Hebert University of Guelph
Lauchlan H. Fraser
Lauchlan H. Fraser Thompson Rivers University
Anthony R. E. Sinclair
Anthony R. E. Sinclair University of British Columbia
Oswald J. Schmitz
Oswald J. Schmitz Yale University

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Related Online Degrees & Career Pathways

Pursuing a degree in Ecology and Evolution can open doors to a wide variety of careers in research, conservation, and environmental management. For those interested in combining biology with healthcare, many professionals explore nursing or healthcare leadership pathways after their undergraduate studies.

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Whether you stay focused on ecological research or pivot to healthcare, these flexible online options support a range of career advancements linked to biological sciences.

Best Scientists Citing Thomas P. Sullivan

Robert K. Swihart

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Peter B. Banks

Peter B. Banks

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Charles J. Krebs

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Stan Boutin

Stan Boutin

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Martin Kavaliers

Martin Kavaliers

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Publications: 10

Dean E. Pearson

Dean E. Pearson

United States Department of Agriculture

Publications: 9

Douglas A. Maguire

Douglas A. Maguire

Oregon State University

Publications: 8

John R. Spence

John R. Spence

University of Alberta

Publications: 8

John P. Bryant

John P. Bryant

University of Alaska Fairbanks

Publications: 8

Daniel Fortin

Daniel Fortin

Université Laval

Publications: 7

Robert G. Wagner

Robert G. Wagner

Purdue University West Lafayette

Publications: 7

Rudy Boonstra

Rudy Boonstra

University of Toronto

Publications: 7

Matthew G. Betts

Matthew G. Betts

Oregon State University

Publications: 7

Christian Messier

Christian Messier

University of Quebec at Montreal

Publications: 7

Suzanne W. Simard

Suzanne W. Simard

University of British Columbia

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Markus Fendt

Otto-von-Guericke University Magdeburg

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