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Dirac Twidwell

D-Index & Metrics

Ecology and Evolution

D-Index
39
Citations
4845
World Ranking
6460
National Ranking
2186

Dirac Twidwell 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 Dirac Twidwell 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: 144 publications — 49th percentile

49% of scientists in this discipline score the same or lower.

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

Dirac Twidwell 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 Dirac Twidwell 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

Dirac Twidwell is affiliated with the University of Nebraska-Lincoln in the United States. Their research primarily focuses on environmental science, with a significant emphasis on rangeland and wildlife management, as well as ecosystem dynamics and conservation.

The main fields of study in which Twidwell has contributed include:

  • Environmental Science

Key subfields of their work are:

  • Global and Planetary Change
  • Ecology
  • Nature and Landscape Conservation
  • Management, Monitoring, Policy and Law
  • Environmental Chemistry

Twidwell's research topics cover a wide range of ecological and environmental themes, including:

  • Rangeland and Wildlife Management
  • Fire effects on ecosystems
  • Ecology and Vegetation Dynamics Studies
  • Wildlife Ecology and Conservation
  • Forest Management and Policy
  • Ecosystem dynamics and resilience
  • Turfgrass Adaptation and Management

Recent papers authored by Twidwell include:

  • Improving Landsat predictions of rangeland fractional cover with multitask learning and uncertainty (2021, Methods in Ecology and Evolution)
  • The last continuous grasslands on Earth: Identification and conservation importance (2022, Conservation Science and Practice)
  • Panarchy: opportunities and challenges for ecosystem management (2020, Frontiers in Ecology and the Environment)
  • Herbaceous production lost to tree encroachment in United States rangelands (2022, Journal of Applied Ecology)
  • Woody Plant Encroachment and the Sustainability of Priority Conservation Areas (2020, Sustainability)

Twidwell frequently collaborates with several coauthors, including:

  • Craig R. Allen
  • Caleb P. Roberts
  • Victoria M. Donovan
  • Brady Allred
  • Daniel R. Uden

Their work is regularly published in various scientific journals and venues, with multiple contributions to:

  • Rangeland Ecology & Management
  • Journal of Environmental Management
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Ecology and Society
  • Ecological Applications

Best Publications

  • Ecosystem services lost to oil and gas in North America

    Brady W. Allred;W. Kolby Smith;W. Kolby Smith;Dirac Twidwell;Julia H. Haggerty

  • Improving Landsat predictions of rangeland fractional cover with multitask learning and uncertainty

    Brady W. Allred;Brandon T. Bestelmeyer;Chad S. Boyd;Christopher Brown

  • The rising Great Plains fire campaign: citizens' response to woody plant encroachment

    Dirac Twidwell;William E Rogers;Samuel D Fuhlendorf;Carissa L Wonkka

  • Quantifying spatial resilience

    Craig R. Allen;David G. Angeler;Graeme S. Cumming;Carl Folke;Carl Folke

  • The last continuous grasslands on Earth: Identification and conservation importance

    Unknown

  • Refining thresholds in coupled fire-vegetation models to improve management of encroaching woody plants in grasslands

    Dirac L. Twidwell Jr;Samuel D. Fuhlendorf;Charles A. Taylor Jr;William E. Rogers

  • Heterogeneity as the Basis for Rangeland Management

    Samuel D. Fuhlendorf;Richard W. S. Fynn;Devan Allen McGranahan;Dirac Twidwell

  • National-scale assessment of ecological content in the world's largest land management framework

    Dirac Twidwell;Brady W. Allred;Samuel D. Fuhlendorf

  • Surging wildfire activity in a grassland biome

    Victoria M. Donovan;Carissa L. Wonkka;Dirac Twidwell

  • Soil Moisture Affects Growing-Season Wildfire Size in the Southern Great Plains

    Erik S. Krueger;Tyson E. Ochsner;David M. Engle;J. D. Carlson

  • Extreme prescribed fire during drought reduces survival and density of woody resprouters

    Dirac Twidwell;William E. Rogers;Carissa L. Wonkka;Charles A. Taylor

  • Untapped capacity for resilience in environmental law.

    Ahjond Garmestani;Ahjond Garmestani;J. B. Ruhl;Brian C. Chaffin;Robin K. Craig

  • Adaptive capacity in ecosystems

    David G. Angeler;Hannah Fried-Petersen;Craig R. Allen;Ahjond Garmestani

  • Enhancing quantitative approaches for assessing community resilience

    W. C. Chuang;A. Garmestani;T. N. Eason;T. L. Spanbauer

  • Long-Term Effects of Fire, Livestock Herbivory Removal, and Weather Variability in Texas Semiarid Savanna

    Charles A. Taylor;Dirac Twidwell;Nick E. Garza;Colin Rosser

  • Long-Term Effects of Fire, Livestock Herbivory Removal, and Weather Variability in Texas Semiarid Savanna

    Charles A. Taylor;D.r.c. Twidwell;Nick E. Garza;C.l.n. Rosser

  • Saving imperiled grassland biomes by recoupling fire and grazing: a case study from the Great Plains

    Unknown

  • Impact of Eastern Redcedar Proliferation on Water Resources in the Great Plains USA—Current State of Knowledge

    Chris B. Zou;Dirac Twidwell;Christine H. Bielski;Dillon T. Fogarty

  • Concurrent and antecedent soil moisture relate positively or negatively to probability of large wildfires depending on season

    Erik S. Krueger;Tyson E. Ochsner;J. D. Carlson;David M. Engle

  • Smokey comes of age: unmanned aerial systems for fire management

    Dirac L. Twidwell Jr.;Craig R. Allen;Carrick Detweiler;James Higgins

  • Plant Invasions or Fire Policy: Which Has Altered Fire Behavior More in Tallgrass Prairie?

    Dirac Twidwell;Andrew S. West;William B. Hiatt;Abbey L. Ramirez

  • Beyond Inventories: Emergence of a New Era in Rangeland Monitoring☆

    Matthew O. Jones;David E. Naugle;Dirac Twidwell;Daniel R. Uden

  • Surface Fuel Sampling Strategies: Linking Fuel Measurements and Fire Effects

    Dirac Twidwell;Samuel D. Fuhlendorf;David M. Engle;Charles A. Taylor

  • Soil Moisture Affects Growing-Season Wildfire Size in the Southern Great Plains Soil Physics & Hydrology

    Tyson E. Ochsner;David M. Engle;Dirac Twidwell;D. Fuhlendorf

Frequent Co-Authors

Craig R. Allen
Craig R. Allen University of Nebraska–Lincoln
Samuel D. Fuhlendorf
Samuel D. Fuhlendorf Oklahoma State University
Brady W. Allred
Brady W. Allred University of Montana
David E. Naugle
David E. Naugle University of Montana
Ahjond S. Garmestani
Ahjond S. Garmestani Environmental Protection Agency
William E. Rogers
William E. Rogers Texas A&M University
David A. Wedin
David A. Wedin University of Nebraska–Lincoln
David G. Angeler
David G. Angeler Swedish University of Agricultural Sciences
David M. Engle
David M. Engle Oklahoma State University
Tyson Ochsner
Tyson Ochsner Oklahoma State University

External Links

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Best Scientists Citing Dirac Twidwell

Samuel D. Fuhlendorf

Samuel D. Fuhlendorf

Oklahoma State University

Publications: 26

Brandon T. Bestelmeyer

Brandon T. Bestelmeyer

Agricultural Research Service

Publications: 15

David E. Naugle

David E. Naugle

University of Montana

Publications: 15

Brady W. Allred

Brady W. Allred

University of Montana

Publications: 15

David J. Augustine

David J. Augustine

Agricultural Research Service

Publications: 14

David M. Engle

David M. Engle

Oklahoma State University

Publications: 14

Maria E. Fernandez-Gimenez

Maria E. Fernandez-Gimenez

Colorado State University

Publications: 11

Justin D. Derner

Justin D. Derner

Agricultural Research Service

Publications: 11

Jesse B. Nippert

Jesse B. Nippert

Kansas State University

Publications: 10

Craig R. Allen

Craig R. Allen

University of Nebraska–Lincoln

Publications: 10

Urs P. Kreuter

Urs P. Kreuter

Texas A&M University

Publications: 10

James R. Miller

James R. Miller

University of Illinois at Urbana-Champaign

Publications: 10

Diane M. Debinski

Diane M. Debinski

Montana State University

Publications: 9

Ahjond S. Garmestani

Ahjond S. Garmestani

Environmental Protection Agency

Publications: 9

Kirk W. Davies

Kirk W. Davies

United States Department of Agriculture

Publications: 8

Chad S. Boyd

Chad S. Boyd

Oregon State University

Publications: 8

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