World's Best Scientists 2026 revealed!
Theo C. M. Bakker

Theo C. M. Bakker

D-Index & Metrics

Ecology and Evolution

D-Index
50
Citations
8951
World Ranking
3865
National Ranking
215

Theo C. M. Bakker 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 Theo C. M. Bakker 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: 156 publications — 56th percentile

56% of scientists in this discipline score the same or lower.

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

Theo C. M. Bakker 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 Theo C. M. Bakker 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: 50 D-Index — 56th percentile

56% of scientists in this discipline score the same or lower.

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

Overview

Theo C. M. Bakker is affiliated with the University of Bonn in Germany and contributes research primarily in the fields of Materials Science and Environmental Science. Their work spans across various subfields, including Materials Chemistry, Global and Planetary Change, Ecology, Evolution, Behavior and Systematics, Nature and Landscape Conservation, and Mechanical Engineering.

Their research topics cover several areas such as Fusion materials and technologies, Nuclear Materials and Properties, Animal Behavior and Reproduction, Amphibian and Reptile Biology, Fish Ecology and Management Studies, High Temperature Alloys and Creep, and Nuclear reactor physics and engineering.

Frequent publication venues for Bakker's work include Behavioral Ecology and Sociobiology, Journal of Nuclear Materials, Hydrobiologia, Metals, and Current Zoology.

Their recent publications include:

  • Influence of Ni-Mn contents on the embrittlement of PWR RPV model steels irradiated to high fluences relevant for LTO beyond 60 years, 2021, Journal of Nuclear Materials
  • Mechanical properties and microstructure of VVER 440 RPV steels irradiated to extremely high fluences and the effect of recovery annealing, 2021, Journal of Nuclear Materials
  • Anticipatory plastic response of the cellular immune system in the face of future injury: chronic high perceived predation risk induces lymphocytosis in a cichlid fish, 2020, Oecologia
  • Nest-site selection in a fish species with paternal care, 2020, Hydrobiologia
  • Effectiveness of Thermal Annealing in Recovery of Tensile Properties of Compositionally Tailored PWR Model Steels Irradiated in LYRA-10, 2022, Metals

Collaborations play a significant role in Bakker's research output. Frequent co-authors include M. Kolluri, James F. A. Traniello, E. D'Agata, Meike Hiermes, and Ingolf P. Rick.

Best Publications

  • Female sticklebacks use male coloration in mate choice and hence avoid parasitized males

    Manfred Milinski;Theo C. M. Bakker

  • Cooperation through indirect reciprocity: image scoring or standing strategy?

    Manfred Milinski;Dirk Semmann;Theo C. M. Bakker;Hans-Jürgen Krambeck

  • Positive genetic correlation between female preference and preferred male ornament in sticklebacks

    Theo C. M. Bakker

  • Costs influence sequential mate choice in sticklebacks, Gasterosteus aculeatus

    Manfred Milinski;Theo C. M. Bakker

  • Sequential female choice and the previous male effect in sticklebacks

    Theo C. M. Bakker;Manfred Milinski

  • The genetic basis of female mate preferences

    Theo C. M. Bakker;Andrew Pomiankowski

  • Aggressiveness in Sticklebacks (Gasterosteus Aculeatus L.): a Behaviour-Genetic Study

    Theo C.M. Bakker

  • PARASITE‐INDUCED CHANGES IN BEHAVIOR AND COLOR MAKE GAMMARUS PULEX MORE PRONE TO FISH PREDATION

    Theo C. M. Bakker;Dominique Mazzi;Sarah Zala

  • Mutual mate choice in sticklebacks: attractive males choose big females, which lay big eggs

    Sarah B.M Kraak;Theo C.M Bakker

  • Female mate choice and male red coloration in a natural three-spined stickleback (Gasterosteus aculeatus) population

    Theo C. M. Bakker;Beat Mundwiler

  • Condition-related mate choice in sticklebacks

    Theo C. M. Bakker;Theo C. M. Bakker;Reto Künzler;Dominique Mazzi

  • Active Inbreeding in a Cichlid Fish and Its Adaptive Significance

    Timo Thünken;Theo C.M. Bakker;Sebastian A. Baldauf;Harald Kullmann

  • Female preferences for single and combined traits in computer animated stickleback males

    Reto Künzler;Theo C. M. Bakker

  • Sexual selection in sticklebacks in the field: correlates of reproductive, mating, and paternal success

    Sarah B. M. Kraak;Theo C. M. Bakker;Beat Mundwiler

  • Selective copying in mate choice of female sticklebacks

    Tijs Goldschmidt;Theo C.M. Bakker;Enja Feuth-de Bruijn

  • Smells like sib spirit: kin recognition in three-spined sticklebacks (Gasterosteus aculeatus) is mediated by olfactory cues

    Marion Mehlis;Theo C. M. Bakker;Joachim G. Frommen

  • The advantages of being red: Sexual selection in the stickleback

    T. C. M. Bakker;M. Milinski

  • UV wavelengths affect female mate choice in three-spined sticklebacks

    Ingolf P. Rick;Ricarda Modarressie;Theo C.M. Bakker

  • Infection with an acanthocephalan manipulates an amphipod's reaction to a fish predator's odours

    Sebastian A. Baldauf;Timo Thünken;Joachim G. Frommen;Theo C.M. Bakker

  • To eat or not to eat: egg-based assessment of paternity triggers fine-tuned decisions about filial cannibalism

    Marion Mehlis;Theo C. M. Bakker;Leif Engqvist;Joachim G. Frommen;Joachim G. Frommen

  • Behavioral Ecology and Sociobiology at 40

    Theo C. M. Bakker;James F. A. Traniello

Frequent Co-Authors

Joachim G. Frommen
Joachim G. Frommen University of Bern
James F. A. Traniello
James F. A. Traniello Boston University
Manfred Milinski
Manfred Milinski Max Planck Society
Andrew D. C. MacColl
Andrew D. C. MacColl University of Nottingham
Gerald Heckel
Gerald Heckel University of Bern
Martin Kalbe
Martin Kalbe Max Planck Society
Thorsten B.H. Reusch
Thorsten B.H. Reusch GEOMAR Helmholtz Centre for Ocean Research Kiel
Andrew Pomiankowski
Andrew Pomiankowski University College London
Joachim Kurtz
Joachim Kurtz University of Münster
Thomas Lubjuhn
Thomas Lubjuhn University of Cologne

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