World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
50
Citations
10967
World Ranking
3800
National Ranking
212

Ralph Tollrian 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 Ralph Tollrian 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: 124 publications — 35th percentile

35% of scientists in this discipline score the same or lower.

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

Ralph Tollrian 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 Ralph Tollrian 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

Ralph Tollrian is affiliated with Ruhr University Bochum in Germany and focuses on Environmental Science, with a significant portion of work in Ecology. Their research encompasses diverse subfields such as Ecology, Nature and Landscape Conservation, Oceanography, Environmental Chemistry, and Plant Science.

The main topics covered in Tollrian's research include:

  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Fish Ecology and Management Studies
  • Microbial Community Ecology and Physiology
  • Coral and Marine Ecosystems Studies
  • Marine and Coastal Ecosystems
  • Ocean Acidification Effects and Responses
  • Plant and Biological Electrophysiology Studies

Tollrian's recent publications reflect a focus on ecological and environmental topics, with notable articles including:

  • The Asymmetric Response Concept explains ecological consequences of multiple stressor exposure and release, 2023, The Science of The Total Environment
  • A novel environmental DNA detection approach for the wading birds Platalea leucorodia, Recurvirostra avosetta and Tringa totanus, 2020, Conservation Genetics Resources
  • The history, biological relevance, and potential applications for polyp bailout in corals, 2021, Ecology and Evolution
  • Linking local movement and molecular analysis to explore philopatry and population connectivity of the southern stingray Hypanus americanus, 2020, Journal of Fish Biology
  • An environmental DNA metabarcoding approach versus a visual survey for reefs of Koh Pha-ngan in Thailand, 2022, Environmental DNA

Tollrian often collaborates with a network of researchers, with frequent co-authors including Linda C. Weiss, Martin Horstmann, Maximilian Schweinsberg, Florian Leese, and Arne J. Beermann.

The scientist publishes regularly in journals and platforms such as bioRxiv (Cold Spring Harbor Laboratory), Fundamental and Applied Limnology / Archiv für Hydrobiologie, PLoS ONE, Frontiers in Ecology and Evolution, and The Science of The Total Environment.

Best Publications

  • The ecology and evolution of inducible defenses

    C. Drew Harvell

  • Transgenerational induction of defences in animals and plants

    Anurag A. Agrawal;Christian Laforsch;Ralph Tollrian

  • PREDATOR FUNCTIONAL RESPONSES: DISCRIMINATING BETWEEN HANDLING AND DIGESTING PREY

    Jonathan M. Jeschke;Michael Kopp;Ralph Tollrian

  • Consumer‐food systems: why type I functional responses are exclusive to filter feeders

    Jonathan M. Jeschke;Michael Kopp;Ralph Tollrian

  • Inducible Defenses in Cladocera:: Constraints, Costs, and Multipredator Environments

    Ralph Tollrian;Stanley I. Dodson

  • Chemical cues, defence metabolites and the shaping of pelagic interspecific interactions

    Georg Pohnert;Georg Pohnert;Michael Steinke;Michael Steinke;Ralph Tollrian

  • The impact of ultraviolet radiation on the vertical distribution of zooplankton of the genus Daphnia

    Stephan C. Rhode;Markus Pawlowski;Ralph Tollrian

  • Environmental Tolerance, Heterogeneity, and the Evolution of Reversible Plastic Responses

    Wilfried Gabriel;Barney Luttbeg;Andrew Sih;Ralph Tollrian

  • Neckteeth formation in Daphnia pulex as an example of continuous phenotypic plasticity: morphological effects of Chaoborus kairomone concentration and their quantification

    Ralph Tollrian

  • INDUCIBLE DEFENSES IN MULTIPREDATOR ENVIRONMENTS: CYCLOMORPHOSIS IN DAPHNIA CUCULLATA.

    Christian Laforsch;Ralph Tollrian

  • Alternative antipredator defences and genetic polymorphism in a pelagic predator–prey system

    Luc De Meester;Lawrence J. Weider;Ralph Tollrian

  • Prey swarming: which predators become confused and why?

    Jonathan M. Jeschke;Ralph Tollrian

  • A “crown of thorns” is an inducible defense that protects Daphnia against an ancient predator

    Adam Petrusek;Ralph Tollrian;Klaus Schwenk;Andreas Haas

  • Inducible defenses: The relevance of chemical alarm cues in Daphnia

    Christian Laforsch;Laura Beccara;Ralph Tollrian

  • Individual swimming behavior of Daphnia: effects of food, light and container size in four clones

    Stanley I. Dodson;Shanna Ryan;Ralph Tollrian;Winfried Lampert

  • Multiple-stressor effects on stream invertebrates: a mesocosm experiment manipulating nutrients, fine sediment and flow velocity

    Vasco Elbrecht;Vasco Elbrecht;Arne J. Beermann;Arne J. Beermann;Gunnar Goessler;Janis Neumann

  • Rising pCO2 in Freshwater Ecosystems Has the Potential to Negatively Affect Predator-Induced Defenses in Daphnia

    Linda C. Weiss;Leonie Pötter;Annika Steiger;Sebastian Kruppert

  • Fish-kairomone induced morphological changes in Daphnia lumholtzi (Sars)

    Ralph Tollrian

  • Chaoborus crystallinus predation on Daphnia pulex: can induced morphological changes balance effects of body size on vulnerability?

    Ralph Tollrian

  • Density-dependent effects of prey defences

    J. M. Jeschke;R. Tollrian

  • An acoustic microscopy technique reveals hidden morphological defenses in Daphnia.

    Christian Laforsch;Wilfred Ngwa;Wolfgang Grill;Ralph Tollrian

Frequent Co-Authors

Florian Leese
Florian Leese University of Duisburg-Essen
Christian Laforsch
Christian Laforsch University of Bayreuth
Jonathan M. Jeschke
Jonathan M. Jeschke Freie Universität Berlin
John K. Colbourne
John K. Colbourne University of Birmingham
Stanley I. Dodson
Stanley I. Dodson University of Wisconsin–Madison
Stanislav N. Gorb
Stanislav N. Gorb Kiel University
Winfried Lampert
Winfried Lampert Max Planck Society
Klaus Schwenk
Klaus Schwenk University of Koblenz and Landau
Christoph D. Matthaei
Christoph D. Matthaei University of Otago
Georg Pohnert
Georg Pohnert Friedrich Schiller University Jena

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