World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
38
Citations
10333
World Ranking
6503
National Ranking
406

Jason T. Weir 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 Jason T. Weir 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: 69 publications — 3rd percentile

3% of scientists in this discipline score the same or lower.

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

Jason T. Weir 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 Jason T. Weir 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: 38 D-Index — 23rd percentile

23% of scientists in this discipline score the same or lower.

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

Overview

Jason T. Weir is affiliated with the University of Toronto in Canada. Their research spans several interconnected areas within biology, focusing on genetics, ecology, and molecular biology. The primary fields of study include Biochemistry, Genetics and Molecular Biology, and Environmental Science. Key subfields of their work are Genetics, Ecology, Nature and Landscape Conservation, Paleontology, and Molecular Biology.

The scientist's main research topics encompass genetic diversity and population structure, evolution and paleontology studies, genomics and phylogenetic studies, ecology and vegetation dynamics studies, wildlife ecology and conservation, fish biology, ecology, and behavior, as well as plant and animal studies.

Jason T. Weir has contributed to the literature with several papers published in notable venues. Their recent publications include:

  • The role of divergent ecological adaptation during allopatric speciation in vertebrates (2022, Science)
  • Correlates of bird collisions with buildings across three North American countries (2020, Conservation Biology)
  • Postzygotic isolation drives genomic speciation between highly cryptic Hypocnemis antbirds from Amazonia (2020, Evolution)
  • Character displacement drives trait divergence in a continental fauna (2021, Proceedings of the National Academy of Sciences)
  • Is Niagara Falls a barrier to gene flow in riverine fishes? A test using genome-wide SNP data from seven native species (2020, Molecular Ecology)

The scientist frequently publishes in several scientific journals, with multiple contributions to Molecular Ecology, Conservation Genetics, The American Naturalist, Proceedings of the Royal Society B Biological Sciences, and bioRxiv (Cold Spring Harbor Laboratory).

Frequent co-authors collaborating with Jason T. Weir include Sean A. S. Anderson, Else K. Mikkelsen, Alexandre Luis Padovan Aleixo, Oliver Haddrath, and Vanessa E. Luzuriaga-Aveiga.

Best Publications

  • GEIGER: investigating evolutionary radiations.

    Luke J. Harmon;Jason T. Weir;Chad D. Brock;Richard E. Glor

  • Early bursts of body size and shape evolution are rare in comparative data.

    Luke J Harmon;Luke J Harmon;Jonathan B Losos;T Jonathan Davies;Rosemary G Gillespie

  • Calibrating the avian molecular clock

    J. T. Weir;D. Schluter

  • The Latitudinal Gradient in Recent Speciation and Extinction Rates of Birds and Mammals

    Jason T. Weir;Dolph Schluter

  • Dense sampling of bird diversity increases power of comparative genomics.

    Shaohong Feng;Josefin Stiller;Yuan Deng;Joel Armstrong;Joel Armstrong

  • Ice sheets promote speciation in boreal birds

    Jason T. Weir;Dolph Schluter

  • DIVERGENT TIMING AND PATTERNS OF SPECIES ACCUMULATION IN LOWLAND AND HIGHLAND NEOTROPICAL BIRDS

    Jason T. Weir

  • Sexual selection accelerates signal evolution during speciation in birds

    Nathalie Seddon;Carlos A. Botero;Joseph A. Tobias;Peter O. Dunn

  • The Great American Biotic Interchange in birds.

    Jason T. Weir;Eldredge Bermingham;Dolph Schluter

  • Andean uplift promotes lowland speciation through vicariance and dispersal in Dendrocincla woodcreepers.

    Jason T. Weir;Momoko Price;Momoko Price

  • Limits to speciation inferred from times to secondary sympatry and ages of hybridizing species along a latitudinal gradient.

    Jason T. Weir;Trevor D. Price

  • Out of Amazonia again and again: episodic crossing of the Andes promotes diversification in a lowland forest flycatcher

    Matthew J Miller;Matthew J Miller;Eldredge Bermingham;John Klicka;Patricia Escalante

  • SimRAD: an R package for simulation-based prediction of the number of loci expected in RADseq and similar genotyping by sequencing approaches

    Olivier Lepais;Jason T. Weir

  • Do freshwater fishes diversify faster than marine fishes? A test using state-dependent diversification analyses and molecular phylogenetics of new world silversides (atherinopsidae).

    Devin D. Bloom;Jason T. Weir;Kyle R. Piller;Nathan R. Lovejoy

  • Hybridization in headwater regions, and the role of rivers as drivers of speciation in Amazonian birds

    Jason T. Weir;Maya S. Faccio;Paola Pulido-Santacruz;Alfredo O. Barrera-Guzmán

  • Diversification in Adelomyia hummingbirds follows Andean uplift.

    Jaime A. Chaves;Jason T. Weir;Thomas B. Smith

  • Hybrid speciation leads to novel male secondary sexual ornamentation of an Amazonian bird.

    Alfredo O. Barrera-Guzmán;Alexandre Aleixo;Matthew D. Shawkey;Jason T. Weir

  • A latitudinal gradient in rates of evolution of avian syllable diversity and song length

    Jason T. Weir;David Wheatcroft

  • Explosive ice age diversification of kiwi

    Jason T. Weir;Oliver Haddrath;Hugh A. Robertson;Rogan M. Colbourne

  • IMPLICATIONS OF GENETIC DIFFERENTIATION IN NEOTROPICAL MONTANE FOREST BIRDS

    Jason T. Weir

  • Species coexistence: macroevolutionary relationships and the contingency of historical interactions.

    Rachel M. Germain;Jason T. Weir;Benjamin Gilbert

Frequent Co-Authors

Alexandre Aleixo
Alexandre Aleixo Instituto Tecnológico Vale
Dolph Schluter
Dolph Schluter University of British Columbia
Erich D. Jarvis
Erich D. Jarvis Rockefeller University
Trevor D. Price
Trevor D. Price University of Chicago
Gary R. Graves
Gary R. Graves National Museum of Natural History
Carsten Rahbek
Carsten Rahbek University of Copenhagen
Jon Fjeldså
Jon Fjeldså University of Copenhagen
M. Thomas P. Gilbert
M. Thomas P. Gilbert University of Copenhagen
Matthew C. Miller
Matthew C. Miller Northeastern University
David Haussler
David Haussler University of California, Santa Cruz

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