World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
32
Citations
4763
World Ranking
8034
National Ranking
2666

Patrick F. 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 Patrick F. 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: 82 publications — 8th percentile

8% of scientists in this discipline score the same or lower.

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

Patrick F. 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 Patrick F. 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: 32 D-Index — 5th percentile

5% of scientists in this discipline score the same or lower.

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

Overview

Patrick F. Sullivan is affiliated with the University of Alaska Anchorage in the United States. Their research primarily focuses on Earth and Planetary Sciences, with 51 publications in this main field and 17 in Environmental Science. Within these areas, their work extends into specific subfields including Atmospheric Science, Global and Planetary Change, Ecology, Geology, and General Health Professions.

The main topics addressed in Sullivan's research relate heavily to climate and environmental dynamics. These include:

  • Climate change and permafrost
  • Cryospheric studies and observations
  • Tree-ring climate responses
  • Arctic and Antarctic ice dynamics
  • Plant water relations and carbon dynamics
  • Geology and paleoclimatology research
  • Fire effects on ecosystems

Sullivan's frequent coauthors reflect collaborations across several experts in related fields. These coauthors include Roman Dial, Eric Post, Sean M. P. Cahoon, Isla H. Myers-Smith, and Jeffrey T. Kerby. The number of collaborations ranges from four to nine joint works per individual.

Many publications have appeared in highly regarded venues, with multiple papers in the Proceedings of the National Academy of Sciences (3), Science (2), Environmental Research Letters (2), Ecography (2), and Journal of Ecology (2).

Key recent papers authored or coauthored by Sullivan cover various aspects of Arctic and boreal ecosystem change and dynamics:

  • "Complexity revealed in the greening of the Arctic" (2020) published in Nature Climate Change
  • "Winters are changing: snow effects on Arctic and alpine tundra ecosystems" (2022) published in Arctic Science
  • "Sufficient conditions for rapid range expansion of a boreal conifer" (2022) published in Nature
  • "Divergence of Arctic shrub growth associated with sea ice decline" (2020) published in Proceedings of the National Academy of Sciences
  • "Adding Tree Rings to North America's National Forest Inventories: An Essential Tool to Guide Drawdown of Atmospheric CO2" (2021) published in BioScience

Best Publications

  • Complexity revealed in the greening of the Arctic

    Isla H. Myers-Smith;Jeffrey T. Kerby;Gareth K. Phoenix;Jarle W. Bjerke

  • Large loss of CO2 in winter observed across the northern permafrost region

    Susan M. Natali;Jennifer D. Watts;Brendan M. Rogers;Stefano Potter

  • The unseen iceberg: plant roots in arctic tundra

    Colleen M. Iversen;Victoria L. Sloan;Patrick F. Sullivan;Eugenie S. Euskirchen

  • Biomass production efficiency controlled by management in temperate and boreal ecosystems

    M. Campioli;S. Vicca;S. Luyssaert;J. Bilcke

  • Temperature and Microtopography Interact to Control Carbon Cycling in a High Arctic Fen

    Patrick F. Sullivan;Seth J. T. Arens;Rodney A. Chimner;Jeffrey M. Welker

  • The temperature responses of soil respiration in deserts: a seven desert synthesis

    Jessica M Cable;Jessica M Cable;Kiona Ogle;Richard W Lucas;Travis E Huxman

  • Leaf mineral nutrition of Arctic plants in response to warming and deeper snow in northern Alaska

    J. M. Welker;J. T. Fahnestock;P. F. Sullivan;R. A. Chimner

  • Limited evidence of declining growth among moisture-limited black and white spruce in interior Alaska

    Patrick F. Sullivan;Robert R. Pattison;Annalis H. Brownlee;Sean M. P. Cahoon

  • Interactions among shrub cover and the soil microclimate may determine future Arctic carbon budgets.

    Sean M. P. Cahoon;Patrick F. Sullivan;Gaius R. Shaver;Jeffrey M. Welker

  • Large herbivores limit CO2 uptake and suppress carbon cycle responses to warming in West Greenland

    Sean M. P. Cahoon;Patrick F. Sullivan;Eric Post;Jeffrey M. Welker

  • Evidence and implications of recent and projected climate change in Alaska's forest ecosystems

    Jane M. Wolken;Teresa N. Hollingsworth;T. Scott Rupp;Stuart Iii Chapin

  • Climate and species affect fine root production with long-term fertilization in acidic tussock tundra near Toolik Lake, Alaska.

    Patrick F. Sullivan;Martin Sommerkorn;Heather M. Rueth;Knute J. Nadelhoffer

  • Warming chambers stimulate early season growth of an arctic sedge: results of a minirhizotron field study.

    Patrick F. Sullivan;Jeffrey M. Welker

  • Evidence of soil nutrient availability as the proximate constraint on growth of treeline trees in northwest Alaska

    Patrick F. Sullivan;Sarah B. Z. Ellison;Robert W. McNown;Annalis H. Brownlee

  • Nonlinear responses to nitrogen and strong interactions with nitrogen and phosphorus additions drastically alter the structure and function of a high arctic ecosystem

    Seth J. T. Arens;Seth J. T. Arens;Patrick F. Sullivan;Jeffrey M. Welker

  • Shrubline but not treeline advance matches climate velocity in montane ecosystems of south‐central Alaska

    Roman J. Dial;T. Scott Smeltz;Patrick F. Sullivan;Christina L. Rinas

  • Complex carbon cycle responses to multi-level warming and supplemental summer rain in the high Arctic.

    Elizabeth D. Sharp;Patrick F. Sullivan;Heidi Steltzer;Adam Z. Csank

  • Advancing the use of minirhizotrons in wetlands

    Colleen M Iversen;Meaghan T. Murphy;Michael F. Allen;Joanne Childs

  • Continuous estimates of CO2 efflux from arctic and boreal soils during the snow‐covered season in Alaska

    Patrick F. Sullivan;Jeffrey M. Welker;Seth J. T. Arens;Seth J. T. Arens;Bjartmar Sveinbjörnsson

  • Declining growth of deciduous shrubs in the warming climate of continental western Greenland

    Cassandra M. Gamm;Patrick F. Sullivan;Agata Buchwal;Agata Buchwal;Roman J. Dial

  • Earlier snowmelt and warming lead to earlier but not necessarily more plant growth

    Carolyn Livensperger;Heidi Steltzer;Anthony Darrouzet-Nardi;Patrick F. Sullivan

  • Variation in leaf physiology of Salix arctica within and across ecosystems in the High Arctic: test of a dual isotope (Δ 13 C and Δ 18 O) conceptual model

    Patrick F. Sullivan;Jeffrey M. Welker

Frequent Co-Authors

Jeffrey M. Welker
Jeffrey M. Welker University of Oulu
Eric Post
Eric Post University of California, Davis
Michael N. Weintraub
Michael N. Weintraub University of Toledo
Frans-Jan W. Parmentier
Frans-Jan W. Parmentier University of Oslo
Bo Elberling
Bo Elberling University of Copenhagen
Donatella Zona
Donatella Zona San Diego State University
David Olefeldt
David Olefeldt University of Alberta
Eugénie S. Euskirchen
Eugénie S. Euskirchen University of Alaska Fairbanks
Matthew D. Wallenstein
Matthew D. Wallenstein Colorado State University
Gaius R. Shaver
Gaius R. Shaver Marine Biological Laboratory

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