World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
46
Citations
7788
World Ranking
6105
National Ranking
2211

Thomas W. Gillespie publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Thomas W. Gillespie sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 125 publications — 27th percentile

27% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Thomas W. Gillespie D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Thomas W. Gillespie sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 46 D-Index — 39th percentile

39% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Thomas W. Gillespie is affiliated with the University of California, Los Angeles in the United States. Their research primarily focuses on Environmental Science, with a particular emphasis on Global and Planetary Change, Ecology, Ecological Modeling, Nature and Landscape Conservation, and Social Psychology as subfields.

Their work covers a range of topics including Species Distribution and Climate Change, Ecology and Vegetation Dynamics Studies, Conservation, Biodiversity, and Resource Management, Remote Sensing in Agriculture, Land Use and Ecosystem Services, Fire Effects on Ecosystems, and Wildlife Ecology and Conservation.

Notable recent papers by Gillespie include:

  • The global abundance of tree palms, 2020, published in Global Ecology and Biogeography
  • From local spectral species to global spectral communities: A benchmark for ecosystem diversity estimate by remote sensing, 2020, published in Ecological Informatics
  • The season for large fires in Southern California is projected to lengthen in a changing climate, 2022, published in Communications Earth & Environment
  • Trends in active restoration of tropical dry forest: Methods, metrics, and outcomes, 2020, published in Forest Ecology and Management
  • Global tropical dry forest extent and cover: A comparative study of bioclimatic definitions using two climatic data sets, 2021, published in PLoS ONE

Their frequent publication venues reflect their areas of expertise and include Ecological Informatics, Forest Ecology and Management, bioRxiv (Cold Spring Harbor Laboratory), Global Ecology and Biogeography, and Communications Earth & Environment.

Thomas W. Gillespie has collaborated extensively with a number of researchers. Frequent co-authors include Monica Dimson, Lucas Berio Fortini, Jonathan P. Ocón, Janet Franklin, and Duccio Rocchini.

Best Publications

  • Recent Third Pole’s Rapid Warming Accompanies Cryospheric Melt and Water Cycle Intensification and Interactions between Monsoon and Environment: Multidisciplinary Approach with Observations, Modeling, and Analysis

    Tandong Yao;Yongkang Xue;Deliang Chen;Fahu Chen

  • An estimate of the number of tropical tree species

    J. W. Ferry Slik;Víctor Arroyo-Rodríguez;Shin-Ichiro Aiba;Patricia Alvarez-Loayza

  • Remotely sensed spectral heterogeneity as a proxy of species diversity: Recent advances and open challenges

    Duccio Rocchini;Niko Balkenhol;Gregory A. Carter;Giles M. Foody

  • Diversity, composition, and structure of tropical dry forests in Central America

    Unknown

  • Urban tree planting programs, function or fashion? Los Angeles and urban tree planting campaigns

    Stephanie Pincetl;Thomas Gillespie;Diane E. Pataki;Sassan Saatchi

  • Mental Health in Sumatra After the Tsunami

    Elizabeth Frankenberg;Jed Friedman;Thomas Gillespie;Nicholas Ingwersen

  • PREDICTING WOODY‐PLANT SPECIES RICHNESS IN TROPICAL DRY FORESTS: A CASE STUDY FROM SOUTH FLORIDA, USA

    Thomas W. Gillespie

  • Assessment and prediction of natural hazards from satellite imagery

    Thomas W. Gillespie;Jasmine Chu;Elizabeth Frankenberg;Duncan Thomas

  • Phylogenetic classification of the world's tropical forests

    J. W.Ferry Slik;Janet Franklin;Víctor Arroyo-Rodríguez;Richard Field

  • Coastal blue space and depression in older adults

    Seraphim Dempsey;Mel T. Devine;Tom Gillespie;Seán Lyons

  • A comparison of the economic benefits of urban green spaces estimated with NDVI and with high-resolution land cover data

    Wei Li;Jean-Daniel M. Saphores;Thomas W. Gillespie

  • Mortality, The Family and The Indian Ocean Tsunami*

    Elizabeth Frankenberg;Thomas Gillespie;Samuel Preston;Bondan Sikoki

  • Understanding preferences for tree attributes: the relative effects of socio-economic and local environmental factors

    Meghan L. Avolio;Diane E. Pataki;Stephanie Pincetl;Thomas W. Gillespie

  • Potential of remote sensing to predict species invasions A modelling perspective

    Duccio Rocchini;Veronica Andreo;Michael Förster;Carol Ximena Garzon-Lopez

  • Monitoring changes of NDVI in protected areas of southern California

    Thomas W. Gillespie;Stacey Ostermann-Kelm;Chunyu Dong;Katherine S. Willis

  • The global abundance of tree palms

    Robert Muscarella;Robert Muscarella;Thaise Emilio;Thaise Emilio;Oliver L. Phillips;Simon L. Lewis;Simon L. Lewis

  • Tree diversity in southern California's urban forest: the interacting roles of social and environmental variables

    Meghan Avolio;Diane E. Pataki;Thomas Gillespie;G. Darrel Jenerette

  • Climate tolerances and trait choices shape continental patterns of urban tree biodiversity

    G. Darrel Jenerette;Lorraine W. Clarke;Meghan L. Avolio;Diane E. Pataki

  • Studying Displacement After a Disaster Using Large-Scale Survey Methods: Sumatra After the 2004 Tsunami

    Clark Gray;Elizabeth Frankenberg;Thomas Gillespie;Cecep Sumantri

  • The rarest and least protected forests in biodiversity hotspots

    Thomas W. Gillespie;Boris Lipkin;Lauren Sullivan;David R. Benowitz

  • A trait‐based ecology of the Los Angeles urban forest

    D. E. Pataki;H. R. McCarthy;T. Gillespie;G. D. Jenerette

  • Assesment and Prediction of Natural Hazards from Satellite Imagery

    Thomas Gillespie;Jasmine Chu;Elizabeth Frankenberg;Duncan Thomas

Frequent Co-Authors

Stephanie Pincetl
Stephanie Pincetl University of California, Los Angeles
Diane E. Pataki
Diane E. Pataki Arizona State University
Sassan Saatchi
Sassan Saatchi California Institute of Technology
Elizabeth Frankenberg
Elizabeth Frankenberg University of North Carolina at Chapel Hill
Duncan Thomas
Duncan Thomas Duke University
Gunnar Keppel
Gunnar Keppel University of South Australia
G. Darrel Jenerette
G. Darrel Jenerette University of California, Riverside
Duccio Rocchini
Duccio Rocchini University of Bologna
Glen M. MacDonald
Glen M. MacDonald University of California, Los Angeles
Gregory S. Okin
Gregory S. Okin University of California, Los Angeles

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