World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
65
Citations
13796
World Ranking
1810
National Ranking
661

William H. Karasov 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 H. Karasov 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: 255 publications — 86th percentile

86% of scientists in this discipline score the same or lower.

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

William H. Karasov 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 H. Karasov 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: 65 D-Index — 79th percentile

79% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2013 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

William H. Karasov is affiliated with the University of Wisconsin-Madison in the United States. Their research spans multiple disciplines within environmental science, biochemistry, genetics, molecular biology, and agricultural and biological sciences. The scientist has contributed significantly to subfields including health, toxicology and mutagenesis, genetics, molecular biology, ecology, and nature and landscape conservation.

The central topics of Karasov's work focus on environmental toxicology and ecotoxicology, fish ecology and management studies, digestive system and related health, animal nutrition and physiology, aquaculture nutrition and growth, aquatic ecosystems and phytoplankton dynamics, as well as genetic and kidney cyst diseases.

Recent selected papers include:

  • Impacts of subchronic exposure to a commercial 2,4-D herbicide on developmental stages of multiple freshwater fish species, 2020, Chemosphere
  • Adaptation of intestinal epithelial hydrolysis and absorption of dietary carbohydrate and protein in mammals and birds, 2020, Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology
  • Duplications and Functional Convergence of Intestinal Carbohydrate-Digesting Enzymes, 2020, Molecular Biology and Evolution
  • Warmer temperature increases toxicokinetic elimination of PCBs and PBDEs in Northern leopard frog larvae (Lithobates pipiens), 2021, Aquatic Toxicology
  • Subchronic impacts of 2,4-D herbicide Weedestroy®AM40 on associative learning in juvenile yellow perch (Perca flavescens), 2021, Aquatic Toxicology

Frequent co-authors in Karasov's publications are:

  • Enrique Caviedes-Vidal
  • Antonio Brun
  • Melisa E. Magallanes
  • Gavin K. Dehnert
  • Amber White

William H. Karasov has published multiple papers in venues such as:

  • Chemosphere
  • Aquatic Toxicology
  • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology
  • Journal of Experimental Biology
  • Environmental Toxicology and Chemistry

Karasov has authored a book titled Physiological Ecology, published by Princeton University Press in 2020, which has been cited in academic circles.

Among awards, William H. Karasov was named a Fellow of the American Association for the Advancement of Science (AAAS) in 2013.

Best Publications

  • Physiological Ecology: How Animals Process Energy, Nutrients, and Toxins

    William H. Karasov;Carlos Martínez del Rio

  • Ecological Physiology of Diet and Digestive Systems

    William H. Karasov;Carlos Martínez del Rio;Enrique Caviedes-Vidal

  • Adaptive regulation of sugar and amino acid transport by vertebrate intestine.

    W. H. Karasov;J. M. Diamond

  • Morphometrics of the avian small intestine compared with that of nonflying mammals: a phylogenetic approach.

    Shana R. Lavin;William H. Karasov;Anthony R. Ives;Kevin M. Middleton

  • Phenotypic flexibility in digestive system structure and function in migratory birds and its ecological significance

    Scott R. McWilliams;William H. Karasov

  • Contrasts in Energy Intake and Expenditure in Sit-and-Wait and Widely Foraging Lizards

    Roger A. Anderson;W. H. Karasov

  • Digestive physiology is a determinant of foraging bout frequency in hummingbirds.

    Jared M. Diamond;William H. Karasov;William H. Karasov;Duong Phan;F. Lynn Carpenter

  • Digestive Plasticity in Avian Energetics and Feeding Ecology

    William H. Karasov

  • The Trade‐Offs Between Digestion Rate and Efficiency in Warblers and Their Ecological Implications

    Daniel Afik;William H. Karasov

  • Interplay between Physiology and Ecology in DigestionIntestinal nutrient transporters vary within and between species according to diet

    William H. Karasov;Jared M. Diamond

  • Food Passage and Intestinal Nutrient Absorption in Hummingbirds

    William H. Karasov;Duong Phan;Jared M. Diamond;F. Lynn Carpenter

  • Digestive Responses of Temperate Birds Switched to Fruit or Insect Diets

    Douglas J. Levey;William H. Karasov

  • The digestive adaptation of flying vertebrates: High intestinal paracellular absorption compensates for smaller guts

    Enrique Caviedes-Vidal;Todd J. McWhorter;Shana R. Lavin;Juan G. Chediack

  • Physiological Basis and Ecological Consequences of Sugar Preferences in Cedar Waxwings

    Carlos Martínez del Rio;W. H. Karasov;D. J. Levey

  • Effects of atrazine on embryos, larvae, and adults of anuran amphibians

    John W. Allran;William H. Karasov

  • Diet breadth of mammalian herbivores: nutrient versus detoxification constraints.

    M. D. Dearing;A. M. Mangione;W. H. Karasov

  • Digestive System Trade-offs and Adaptations of Frugivorous Passerine Birds

    William H. Karasov;Douglas J. Levey

  • Restructuring of the amphibian gut microbiota through metamorphosis

    Kevin D. Kohl;Tawnya L. Cary;William H. Karasov;M. Denise Dearing

  • Daily Energy Expenditure and the Cost of Activity in Mammals

    William H. Karasov

  • Effects of atrazine and nitrate on northern leopard frog (Rana pipiens) larvae exposed in the laboratory from posthatch through metamorphosis

    John Wesley Allran;William H. Karasov

Frequent Co-Authors

Jared M. Diamond
Jared M. Diamond University of California, Los Angeles
Carlos Martínez del Rio
Carlos Martínez del Rio University of Wyoming
M. Denise Dearing
M. Denise Dearing University of Utah
Ido Izhaki
Ido Izhaki University of Haifa
Berry Pinshow
Berry Pinshow Ben-Gurion University of the Negev
Christopher G. Guglielmo
Christopher G. Guglielmo University of Western Ontario
Douglas J. Levey
Douglas J. Levey National Science Foundation
Jonathan Wright
Jonathan Wright Norwegian University of Science and Technology
Colin R. Jefcoate
Colin R. Jefcoate University of Wisconsin–Madison
John P. Giesy
John P. Giesy University of Saskatchewan

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