World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
39
Citations
11091
World Ranking
6248
National Ranking
2113

Steven D. Leavitt 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 Steven D. Leavitt 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: 139 publications — 45th percentile

45% of scientists in this discipline score the same or lower.

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

Steven D. Leavitt 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 Steven D. Leavitt 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

Steven D. Leavitt is affiliated with Brigham Young University in the United States. Their research is primarily situated within the fields of Agricultural and Biological Sciences as well as Biochemistry, Genetics and Molecular Biology. Leavitt's scholarly output notably encompasses work related to Ecology, Evolution, Behavior and Systematics alongside Plant Science and Cell Biology.

The scientist has contributed extensively to topics such as lichen and fungal ecology, mycorrhizal fungi and plant interactions, plant pathogens and fungal diseases, botany and plant ecology studies, bryophyte studies and records, biocrusts and microbial ecology, and geology and paleoclimatology research.

Leavitt has published in several specialized venues with multiple contributions to journals including Evansia, Molecular Phylogenetics and Evolution, Journal of Fungi, The Lichenologist, and The Bryologist.

  • Species in lichen-forming fungi: balancing between conceptual and practical considerations, and between phenotype and phylogenomics (2021, Fungal Diversity)
  • Formally described species woefully underrepresent phylogenetic diversity in the common lichen photobiont genus Trebouxia (Trebouxiophyceae, Chlorophyta): An impetus for developing an integrated taxonomy (2020, Molecular Phylogenetics and Evolution)
  • Metagenomic data reveal diverse fungal and algal communities associated with the lichen symbiosis (2020, Symbiosis)
  • Genome-scale data reveal the role of hybridization in lichen-forming fungi (2020, Scientific Reports)
  • Chloroplast morphology and pyrenoid ultrastructural analyses reappraise the diversity of the lichen phycobiont genus Trebouxia (Chlorophyta) (2021, Algal Research)

Frequent coauthors in Leavitt's publication record include Lucía Muggia, H. Thorsten Lumbsch, Felix Grewe, Jason Hollinger, and Larry L. St. Clair. Collaborative efforts have contributed to advancing understanding across their research interests.

Best Publications

  • Nuclear ribosomal internal transcribed spacer (ITS) region as a universal DNA barcode marker for Fungi

    Conrad L. Schoch;Keith A. Seifert;Sabine Huhndorf;Vincent Robert

  • The 2016 classification of lichenized fungi in the Ascomycota and Basidiomycota – Approaching one thousand genera

    Robert Lücking;Brendan P. Hodkinson;Brendan P. Hodkinson;Steven D. Leavitt

  • Finding needles in haystacks: Linking scientific names, reference specimens and molecular data for Fungi

    Conrad L. Schoch;Barbara Robbertse;Vincent Robert;Duong Vu

  • Phylogenetic classification of yeasts and related taxa within Pucciniomycotina.

    Q.-M. Wang;A.M. Yurkov;M. Göker;H.T. Lumbsch

  • Goodbye morphology? A paradigm shift in the delimitation of species in lichenized fungi

    H. Thorsten Lumbsch;Steven D. Leavitt

  • A review of the lichen family Parmeliaceae - history, phylogeny and current taxonomy.

    Arne Thell;Ana Crespo;Pradeep K. Divakar;Ingvar Kärnefelt

  • Evolution of complex symbiotic relationships in a morphologically derived family of lichen-forming fungi

    Pradeep K Divakar;Ana Crespo;Mats Wedin;Steven D Leavitt

  • Complex patterns of speciation in cosmopolitan "rock posy" lichens--discovering and delimiting cryptic fungal species in the lichen-forming Rhizoplaca melanophthalma species-complex (Lecanoraceae, Ascomycota).

    Steven D. Leavitt;Johnathon D. Fankhauser;Dean H. Leavitt;Lyndon D. Porter

  • Using a temporal phylogenetic method to harmonize family- and genus-level classification in the largest clade of lichen-forming fungi

    Pradeep K. Divakar;Ana Crespo;Ekaphan Kraichak;Steven D. Leavitt

  • Species delimitation and evolution in morphologically and chemically diverse communities of the lichen-forming genus Xanthoparmelia (Parmeliaceae, Ascomycota) in western North America

    Steven D. Leavitt;Leigh Johnson;Larry L. St. Clair

  • Fungal specificity and selectivity for algae play a major role in determining lichen partnerships across diverse ecogeographic regions in the lichen‐forming family Parmeliaceae (Ascomycota)

    Steven D. Leavitt;Ekaphan Kraichak;Matthew P. Nelsen;Susanne Altermann

  • Towards a revised generic classification of lecanoroid lichens ( Lecanoraceae, Ascomycota ) based on molecular, morphological and chemical evidence

    Xin Zhao;Steven D. Leavitt;Zun Tian Zhao;Lu Lu Zhang

  • Species delimitation in taxonomically difficult lichen-forming fungi: an example from morphologically and chemically diverse Xanthoparmelia (Parmeliaceae) in North America.

    Steven D. Leavitt;Leigh A. Johnson;Trevor Goward;Larry L. St. Clair

  • Species in lichen-forming fungi: balancing between conceptual and practical considerations, and between phenotype and phylogenomics

    Robert Lücking;Steven D. Leavitt;David L. Hawksworth;David L. Hawksworth

  • Coalescent-based species delimitation approach uncovers high cryptic diversity in the cosmopolitan lichen-forming fungal genus Protoparmelia (Lecanorales, Ascomycota).

    Garima Singh;Francesco Dal Grande;Pradeep K. Divakar;Juergen Otte

  • Diversification of the newly recognized lichen‐forming fungal lineage Montanelia (Parmeliaceae, Ascomycota) and its relation to key geological and climatic events

    Pradeep K. Divakar;Ruth Del-Prado;H. Thorsten Lumbsch;Mats Wedin

  • The Dynamic Discipline of Species Delimitation: Progress Toward Effectively Recognizing Species Boundaries in Natural Populations

    Steven D. Leavitt;Corrie S. Moreau;H. Thorsten Lumbsch

  • Miocene and Pliocene dominated diversification of the lichen-forming fungal genus Melanohalea (Parmeliaceae, Ascomycota) and Pleistocene population expansions

    Steven D Leavitt;Theodore L Esslinger;Pradeep K Divakar;H Thorsten Lumbsch

  • Miocene divergence, phenotypically cryptic lineages, and contrasting distribution patterns in common lichen-forming fungi (Ascomycota: Parmeliaceae)

    Steven D. Leavitt;Theodore L. Esslinger;Pradeep K. Divakar;H. Thorsten Lumbsch

  • Multilocus phylogeny of the lichen-forming fungal genus Melanohalea (Parmeliaceae, Ascomycota): insights on diversity, distributions, and a comparison of species tree and concatenated topologies.

    Steven D. Leavitt;Theodore L. Esslinger;Toby Spribille;Pradeep K. Divakar

  • Formally described species woefully underrepresent phylogenetic diversity in the common lichen photobiont genus Trebouxia (Trebouxiophyceae, Chlorophyta): An impetus for developing an integrated taxonomy.

    Lucia Muggia;Matthew P Nelsen;Paul M Kirika;Eva Barreno

Frequent Co-Authors

H. Thorsten Lumbsch
H. Thorsten Lumbsch Field Museum of Natural History
Pradeep K. Divakar
Pradeep K. Divakar Complutense University of Madrid
Ana Crespo
Ana Crespo Complutense University of Madrid
Imke Schmitt
Imke Schmitt Goethe University Frankfurt
Mats Wedin
Mats Wedin Swedish Museum of Natural History
Robert Lücking
Robert Lücking Freie Universität Berlin
Bruce McCune
Bruce McCune Oregon State University
Sergio Pérez-Ortega
Sergio Pérez-Ortega Real Jardín Botánico
David L. Hawksworth
David L. Hawksworth Royal Botanic Gardens
Teun Boekhout
Teun Boekhout University of Amsterdam

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