World's Best Scientists 2026 revealed!
William M. Tonn

William M. Tonn

D-Index & Metrics

Ecology and Evolution

D-Index
39
Citations
7166
World Ranking
6317
National Ranking
392

William M. Tonn 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 William M. Tonn 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: 122 publications — 34th percentile

34% of scientists in this discipline score the same or lower.

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

William M. Tonn 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 William M. Tonn 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

William M. Tonn is currently affiliated with the University of Alberta in Canada, where their research focuses primarily on environmental science, with particular attention to fish ecology and management studies. Their work spans several related topics and subfields essential to understanding aquatic ecosystems and conservation efforts.

The main fields of study associated with William M. Tonn include:

  • Environmental Science

Within these fields, their research further delves into subfields such as:

  • Nature and Landscape Conservation
  • Ecology
  • Aquatic Science
  • Global and Planetary Change

Key topics explored in their publications are:

  • Fish Ecology and Management Studies
  • Aquaculture Nutrition and Growth
  • Marine and fisheries research
  • Isotope Analysis in Ecology
  • Wildlife Ecology and Conservation

William M. Tonn has contributed to a number of research articles in peer-reviewed journals. Notable recent publications include:

  • "Dietary versus nondietary fatty acid profiles of lake trout ecotypes from Lake Superior and Great Bear Lake: Are fish really what they eat?" (2020), Canadian Journal of Fisheries and Aquatic Sciences
  • "Among-individual diet variation within a lake trout ecotype: Lack of stability of niche use" (2021), Ecology and Evolution
  • "Native fish and macrophytes minimize impacts of introduced trout on littoral invertebrates: an experimental mesocosm study" (2023), Fundamental and Applied Limnology / Archiv für Hydrobiologie

Their frequent publication venues include:

  • Canadian Journal of Fisheries and Aquatic Sciences
  • Ecology and Evolution
  • Fundamental and Applied Limnology / Archiv für Hydrobiologie

William M. Tonn collaborates regularly with several researchers in related fields. Their notable co-authors include:

  • Louise Chavarie
  • Andrew M. Muir
  • Charles C. Krueger
  • Katie E. Howland
  • Colin P. Gallagher

Best Publications

  • Patterns in the Species Composition and Richness of Fish Assemblages in Northern Wisconsin Lakes

    William M. Tonn;John J. Magnuson

  • INTERCONTINENTAL COMPARISON OF SMALL-LAKE FISH ASSEMBLAGES: THE BALANCE BETWEEN LOCAL AND REGIONAL PROCESSES

    William M. Tonn;John J. Magnuson;Martti Rask;Jorma Toivonen

  • Climate Change and Fish Communities: A Conceptual Framework

    William M. Tonn

  • Individual specialization and trophic adaptability of northern pike ( Esox lucius ): an isotope and dietary analysis

    Catherine P. Beaudoin;William M. Tonn;Ellie E. Prepas;Leonard I. Wassenaar

  • Size Selectivity of Passive Fishing Gear: A Correction for Encounter Probability Applied to Gill Nets

    Lars G. Rudstam;John J. Magnuson;William M. Tonn

  • Effects of lipid extraction on stable carbon and nitrogen isotope analyses of fish tissues: potential consequences for food web studies

    M. A. Sotiropoulos;W. M. Tonn;L. I. Wassenaar

  • ISOLATION VS. EXTINCTION IN THE ASSEMBLY OF FISHES IN SMALL NORTHERN LAKES

    John J. Magnuson;William M. Tonn;Asit Banerjee;Jorma Toivonen

  • Piscivory and Recruitment: Mechanisms Structuring Prey Populations in Small Lakes

    William M. Tonn;Cynthia A. Paszkowski;Ismo J. Holopainen

  • Influence of Environmental Factors and Piscivory in Structuring Fish Assemblages of Small Alberta Lakes

    Clifford L. K. Robinson;William M. Tonn

  • Community concordance between the fish and aquatic birds of lakes in northern Alberta, Canada: the relative importance of environmental and biotic factors

    Cynthia A. Paszkowski;William M. Tonn

  • Tales of two fish: the dichotomous biology of crucian carp (Carassius carassius (L.)) in northern Europe

    Ismo J. Holopainen;William M. Tonn;Cynthia A. Paszkowski

  • Size-Limited Predation, Winterkill, and the Organization of Umbra–Perca Fish Assemblages

    William M. Tonn;Cynthia A. Paszkowski

  • Landscape variables influencing nutrients and phytoplankton communities in Boreal Plain lakes of northern Alberta: a comparison of wetland- and upland-dominated catchments

    E E Prepas;D Planas;J J Gibson;D H Vitt

  • A stable carbon and nitrogen isotope study of lake food webs in Canada's Boreal Plain

    Catherine P. Beaudoin;Ellie E. Prepas;William M. Tonn;Leonard I. Wassenaar

  • Climate Change Impacts on Freshwater Fishes: A Canadian Perspective

    Mark S. Poesch;Louise Chavarie;Cindy Chu;Shubha N. Pandit

  • Bioenergetics of Arctic cod (Boreogadus saida) at low temperatures

    H Hop;W M Tonn;H E Welch

  • Principles for ensuring healthy and productive freshwater ecosystems that support sustainable fisheries

    Unknown

  • Density-Dependent Effects and the Regulation of Crucian Carp Populations in Single-Species Ponds

    William M. Tonn;Ismo J. Holopainen;Cynthia A. Paszkowski

  • Pelagic distribution of lake trout (Salvelinus namaycush) in small Canadian Shield lakes with respect to temperature, dissolved oxygen, and light

    Todd J Sellers;Brian R Parker;David W Schindler;William M Tonn

  • δ13C and δ15N Signatures in Muscle and Fin Tissues: Nonlethal Sampling Methods for Stable Isotope Analysis of Salmonids

    Justin R. Hanisch;William M. Tonn;Cynthia A. Paszkowski;Garry J. Scrimgeour;Garry J. Scrimgeour

  • Identification of Freshwater and Anadromous Inconnu in the Mackenzie River System by Analysis of Otolith Strontium

    Kimberly L. Howland;William M. Tonn;John A. Babaluk;Ross F. Tallman

  • PATTERNS IN THE SPECIES COMPOSITION AND RICHNESS OF FISH ASSEMBLAGES IN

    William M. Tonn;John J. Magnuson

Frequent Co-Authors

Cynthia A. Paszkowski
Cynthia A. Paszkowski University of Alberta
Charles C. Krueger
Charles C. Krueger Michigan State University
Ellie E. Prepas
Ellie E. Prepas Lakehead University
John J. Magnuson
John J. Magnuson University of Wisconsin–Madison
Andy J. Danylchuk
Andy J. Danylchuk University of Massachusetts Amherst
David Z. Zhu
David Z. Zhu University of Alberta
Leonard I. Wassenaar
Leonard I. Wassenaar University of Ottawa
Charles R. Bronte
Charles R. Bronte United States Fish and Wildlife Service
Douglas R. Schmitt
Douglas R. Schmitt Purdue University West Lafayette
Dale H. Vitt
Dale H. Vitt Southern Illinois University Carbondale

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Related Online Degrees & Career Pathways

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These pathways show how online education can support a variety of careers at the intersection of psychology, ecology, and human development.

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