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Claus Nielsen

D-Index & Metrics

Ecology and Evolution

D-Index
40
Citations
6924
World Ranking
6073
National Ranking
642

Claus Nielsen 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 Claus Nielsen 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: 110 publications — 25th percentile

25% of scientists in this discipline score the same or lower.

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

Claus Nielsen 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 Claus Nielsen 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: 40 D-Index — 29th percentile

29% of scientists in this discipline score the same or lower.

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

Best Publications

  • The magnitude of global marine species diversity

    Ward Appeltans;Shane T. Ahyong;Shane T. Ahyong;Gary Anderson;Martin V. Angel

  • Six major steps in animal evolution: are we derived sponge larvae?

    Unknown

  • Structure and Function of Metazoan Ciliary Bands and Their Phylogenetic Significance

    Unknown

  • CLADISTIC ANALYSES OF THE ANIMAL KINGDOM

    Claus Nielsen;Nikolaj Scharff;Danny Eibye-Jacobsen

  • Entoproct life-cycles and the entoproct/ectoproct relationship

    Unknown

  • Xenoturbella is a deuterostome that eats molluscs

    Sarah J. Bourlat;Claus Nielsen;Anne E. Lockyer;D. Timothy J. Littlewood

  • The Development of the Brachiopod Crania (Neocrania) anomala (O. F. Müller)and its Phylogenetic Significance

    Unknown

  • The phylogenetic position of ctenophores and the origin(s) of nervous systems.

    Unknown

  • Trochophora larvae: cell-lineages, ciliary bands, and body regions. 1. Annelida and Mollusca.

    Unknown

  • Origin and evolution of animal life cycles

    Unknown

  • Animal phylogeny in the light of the trochaea theory

    Unknown

  • Observations on Buccinum Undatum L. attacking bivalves and on prey responses, with a short review on attack methods of other prosobranchs

    Unknown

  • The Early Cambrian Halkieria is a mollusc

    Jakob Vinther;Claus Nielsen

  • The European union’s 2010 target: Putting rare species in focus

    B. Fontaine;P. Bouchet;K. van Achterberg;A.M.T. Bongers

  • Testing the new animal phylogeny: A phylum level molecular analysis of the animal kingdom

    Sarah J. Bourlat;Claus Nielsen;Andrew D. Economou;Maximilian J. Telford

  • Trochophora larvae: cell-lineages, ciliary bands and body regions. 2. Other groups and general discussion

    Unknown

  • Origin of the chordate central nervous system - and the origin of chordates.

    Unknown

  • Larval and adult brains1

    Unknown

  • Spezielle Zoologie. Teil 1: Einzeller und Wirbellose Tiere

    Unknown

  • On morphology and reproduction of ‘Hippodiplosia’ insculpta and Fenestrulina malusii (Bryozoa, Cheilostomata)

    Unknown

Frequent Co-Authors

Jesper Jensen
Jesper Jensen Aalborg University
Hans Ulrik Riisgård
Hans Ulrik Riisgård University of Southern Denmark
Farid Dahdouh-Guebas
Farid Dahdouh-Guebas Université Libre de Bruxelles
Claus Oxvig
Claus Oxvig Aarhus University
Shane T. Ahyong
Shane T. Ahyong Australian Museum
Rafael Lemaitre
Rafael Lemaitre National Museum of Natural History
Sammy De Grave
Sammy De Grave University of Oxford
Christopher B. Boyko
Christopher B. Boyko American Museum of Natural History
David I. Gibson
David I. Gibson Natural History Museum
Tin-Yam Chan
Tin-Yam Chan National Taiwan Ocean University

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Best Scientists Citing Claus Nielsen

Gonzalo Giribet

Gonzalo Giribet

Harvard University

Publications: 45

Andreas Hejnol

Andreas Hejnol

Friedrich Schiller University Jena

Publications: 44

Mark Q. Martindale

Mark Q. Martindale

University of Florida

Publications: 42

Leonid L. Moroz

Leonid L. Moroz

University of Florida

Publications: 42

Maximilian J. Telford

Maximilian J. Telford

University College London

Publications: 34

Detlev Arendt

Detlev Arendt

Heidelberg University

Publications: 29

Gregory D. Edgecombe

Gregory D. Edgecombe

Natural History Museum

Publications: 28

Mark J. Costello

Mark J. Costello

Nord University

Publications: 27

Kenneth M. Halanych

Kenneth M. Halanych

University of North Carolina Wilmington

Publications: 26

Kevin J. Peterson

Kevin J. Peterson

Dartmouth College

Publications: 23

Lars E. Holmer

Lars E. Holmer

Uppsala University

Publications: 23

Degan Shu

Degan Shu

Northwest University

Publications: 22

Nori Satoh

Nori Satoh

Okinawa Institute of Science and Technology

Publications: 22

Philip C. J. Donoghue

Philip C. J. Donoghue

University of Bristol

Publications: 22

Bernard M. Degnan

Bernard M. Degnan

University of Queensland

Publications: 22

Nicole King

Nicole King

University of California, Berkeley

Publications: 22

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