World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
39
Citations
13329
World Ranking
6239
National Ranking
2110

Ronald A. Nussbaum 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 Ronald A. Nussbaum 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.

Ronald A. Nussbaum 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 Ronald A. Nussbaum 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

Ronald A. Nussbaum is affiliated with the University of Michigan-Ann Arbor in the United States. Their research primarily addresses topics within Environmental Science and Biochemistry, Genetics and Molecular Biology, spanning both global and planetary change and genetics subfields.

The scientist's recent publications reflect an emphasis on amphibian biology, genetic diversity, and phylogenetic studies. Notable papers include:

  • The roles of vicariance and isolation by distance in shaping biotic diversification across an ancient archipelago: evidence from a Seychelles caecilian amphibian, 2020, BMC Evolutionary Biology
  • Genomic SNPs resolve the phylogeny of an ancient amphibian island radiation from the Seychelles, 2024, Molecular Phylogenetics and Evolution
  • The roles of vicariance and isolation by distance in shaping biotic diversification across an ancient archipelago: evidence from a Seychelles caecilian amphibian, 2020, Research Square (Research Square)
  • Submerged Corridors of Ancient Gene Flow in an Island Amphibian, 2025, Molecular Ecology

Nussbaum collaborates frequently with several coauthors, including Simon T. Maddock, Julia J. Day, Mark Wilkinson, Miranda B. Sherlock, and Jeffrey W. Streicher.

The scientist's research contributions appear in journals such as Molecular Phylogenetics and Evolution, BMC Evolutionary Biology, Research Square, and Molecular Ecology.

The main research topics covered in Nussbaum's work encompass:

  • Amphibian and Reptile Biology
  • Genetic diversity and population structure
  • Wildlife Ecology and Conservation
  • Genomics and Phylogenetic Studies
  • Species Distribution and Climate Change

Key fields of study that frame their research include Environmental Science and Biochemistry, Genetics, and Molecular Biology with particular focus on subfields such as Global and Planetary Change, Genetics, Ecology, Molecular Biology, and Ecological Modeling.

Best Publications

  • THE AMPHIBIAN TREE OF LIFE

    Darrel R. Frost;Taran Grant;Taran Grant;Julián Faivovich;Julián Faivovich;Raoul H. Bain

  • The Impact of Conservation on the Status of the World’s Vertebrates

    Michael Hoffmann;Craig Hilton-Taylor;Ariadne Angulo;Monika Böhm

  • Predicting distributions of known and unknown reptile species in Madagascar

    Christopher J. Raxworthy;Enrique Martinez-Meyer;Ned Horning;Ronald A. Nussbaum

  • Amphibians and Reptiles of the Pacific Northwest

    Ronald A Nussbaum;Edmund D Brodie;Robert M Storm

  • A Variable Circular-Plot Method for Estimating Bird Numbers

    Unknown

  • Aligning Conservation Priorities Across Taxa in Madagascar with High-Resolution Planning Tools

    C. Kremen;A. Cameron;A. Cameron;A. Moilanen;S. J. Phillips

  • FUNGAL-SMALL MAMMAL INTERRELATIONSHIPS WITH EMPHASIS ON OREGON CONIFEROUS FORESTS"

    Unknown

  • Extinction vulnerability of tropical montane endemism from warming and upslope displacement: a preliminary appraisal for the highest massif in Madagascar

    Christopher J. Raxworthy;Richard G. Pearson;Nirhy Rabibisoa;Andry M. Rakotondrazafy

  • Chameleon radiation by oceanic dispersal

    C. J. Raxworthy;M. R. J. Forstner;R. A. Nussbaum

  • Specimen collection: An essential tool

    L. A. Rocha;A. Aleixo;G. Allen;F. Almeda

  • Species Review of Amphibian Extinction Risks in Madagascar: Conclusions from the Global Amphibian Assessment

    Franco Andreone;John E. Cadle;Neil Cox;Frank Glaw

  • On the Classification and Phylogeny of Caecilians (Amphibia: Gymnophiona), a Critical Review

    Ronald A. Nussbaum;Mark Wilkinson

  • Parental investment by skin feeding in a caecilian amphibian

    Alexander Kupfer;Hendrik Müller;Hendrik Müller;Marta M. Antoniazzi;Carlos Jared

  • A rainforest survey of amphibians, reptiles and small mammals at Montagne d'Ambre, Madagascar

    Christopher J. Raxworthy;Ronald A. Nussbaum

  • A molecular phylogeny of ichthyophiid caecilians (Amphibia: Gymnophiona: Ichthyophiidae): out of India or out of South East Asia?

    David J. Gower;Alex Kupfer;Oommen V. Oommen;Werner Himstedt

  • Systematics, speciation and biogeography of the dwarf chameleons (Brookesia; Reptilia, Squamata, Chamaeleontidae) of northern Madagascar

    C. J. Raxworthy;R. A. Nussbaum

  • Caecilian phylogeny and biogeography inferred from mitochondrial DNA sequences of the 12S rRNA and 16S rRNA genes (Amphibia : Gymnophiona)

    Unknown

  • Seasonal shifts in clutch size and egg size in the side-blotched lizard, Uta stansburiana Baird and Girard.

    Ronald A. Nussbaum

  • Life-history evolution and mitogenomic phylogeny of caecilian amphibians.

    Diego San Mauro;David J. Gower;Hendrik Müller;Simon P. Loader

  • Parental care and EGG size in salamanders: An examination of the safe harbor hypothesis

    Ronald A. Nussbaum

  • The evolution of a unique dual jaw-closing mechanism in caecilians: (Amphibia: Gymnophiona) and its bearing on caecilian ancestry

    Ronald A. Nussbaum

  • Comparative morphology and evolution of the lungless caecilian Atretochoana eiselti (Taylor) (Amphibia: Gymnophiona: Typhlonectidae)

    Mark Wilkinson;Ronald A. Nussbaum

  • Supporting Online Material for Aligning Conservation Priorities Across Taxa in Madagascar with High- Resolution Planning Tools

    C. Kremen;A. Cameron;A. Moilanen;S. Phillips

Frequent Co-Authors

Christopher J. Raxworthy
Christopher J. Raxworthy American Museum of Natural History
David J. Gower
David J. Gower Natural History Museum
Frank Glaw
Frank Glaw University of Bonn
Miguel Vences
Miguel Vences Technische Universität Braunschweig
Franco Andreone
Franco Andreone Regione Piemonte
Julián Faivovich
Julián Faivovich National Scientific and Technical Research Council
Stephen C. Donnellan
Stephen C. Donnellan South Australian Museum
Ward C. Wheeler
Ward C. Wheeler American Museum of Natural History
Célio F. B. Haddad
Célio F. B. Haddad Sao Paulo State University
Brian L. Fisher
Brian L. Fisher California Academy of Sciences

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring a degree in Ecology and Evolution can open the door to a variety of rewarding career pathways, many of which overlap with healthcare and research fields. If you are interested in complementing your scientific background with healthcare expertise, several accessible online programs are available in the U.S. For example, a non nursing degree to bsn online program lets you transition into nursing quickly and efficiently, combining your ecology insights with frontline patient care.

For those looking to advance their credentials rapidly, completing an rn to bsn 6 months program is a highly accelerated option. This path is particularly beneficial if you already hold a nursing qualification.

Interested in advanced practice roles? Discover how to become a nurse practitioner in the shortest possible time, which allows you to bridge the gap between ecological research and direct health impacts within communities.

Finally, for those considering psychiatry or mental health careers, researching dnp psychiatric nurse practitioner salary by state provides insight into salary expectations and demand across the country.

Best Scientists Citing Ronald A. Nussbaum

Trending Scientists

Recently Published Articles