World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
48
Citations
15858
World Ranking
5401
National Ranking
1977

Geoffrey G. Parker 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 Geoffrey G. Parker 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: 96 publications — 11th percentile

11% of scientists in this discipline score the same or lower.

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

Geoffrey G. Parker 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 Geoffrey G. Parker 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: 48 D-Index — 44th percentile

44% of scientists in this discipline score the same or lower.

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

Overview

Geoffrey G. Parker is affiliated with the Smithsonian Environmental Research Center in the United States. Their research primarily spans Environmental Science and Agricultural and Biological Sciences, with a notable focus on Ecology and subfields such as Nature and Landscape Conservation, Global and Planetary Change, Plant Science, and Ecology, Evolution, Behavior and Systematics.

The main topics covered in their publications include Ecology and Vegetation Dynamics Studies, Plant Water Relations and Carbon Dynamics, Forest Ecology and Management, Plant and Animal Studies, Species Distribution and Climate Change, Remote Sensing in Agriculture, and Mycorrhizal Fungi and Plant Interactions.

Some of their recent research contributions include the following papers:

  • Aboveground biomass density models for NASA's Global Ecosystem Dynamics Investigation (GEDI) lidar mission, 2022, Remote Sensing of Environment
  • Tamm review: Leaf Area Index (LAI) is both a determinant and a consequence of important processes in vegetation canopies, 2020, Forest Ecology and Management
  • Arbuscular mycorrhizal trees influence the latitudinal beta-diversity gradient of tree communities in forests worldwide, 2021, Nature Communications
  • Distribution of biomass dynamics in relation to tree size in forests across the world, 2022, New Phytologist
  • Mycorrhizal type influences plant density dependence and species richness across 15 temperate forests, 2020, Ecology

Frequently published venues include Ecology, bioRxiv (Cold Spring Harbor Laboratory), Frontiers in Ecology and the Environment, Remote Sensing of Environment, and Forest Ecology and Management.

Geoffrey G. Parker has collaborated repeatedly with several coauthors, including:

  • James A. Lutz
  • Sean M. McMahon
  • Kristina J. Anderson-Teixeira
  • Stephen P. Hubbell
  • David Kenfack

Best Publications

  • Lidar Remote Sensing for Ecosystem Studies

    Michael A. Lefsky;Warren B. Cohen;Geoffrey G. Parker;David J. Harding

  • Lidar Remote Sensing of the Canopy Structure and Biophysical Properties of Douglas-Fir Western Hemlock Forests

    M.A. Lefsky;W.B. Cohen;S.A. Acker;G.G. Parker

  • Throughfall and Stemflow in the Forest Nutrient Cycle

    G.G. Parker

  • Surface lidar remote sensing of basal area and biomass in deciduous forests of eastern Maryland, USA

    M. A. Lefsky;D. Harding;W. B. Cohen;Geoffrey G. Parker

  • Lidar remote sensing of above‐ground biomass in three biomes

    Michael A. Lefsky;Warren B. Cohen;David J. Harding;Geoffrey G. Parker

  • CTFS-ForestGEO: A worldwide network monitoring forests in an era of global change

    Kristina J. Anderson-Teixeira;Kristina J. Anderson-Teixeira;Stuart J. Davies;Stuart J. Davies;Amy C. Bennett;Erika B. Gonzalez-Akre

  • Structure and microclimate of forest canopies.

    G. G. Parker;M. D. Lowman;N. M. Nadkarni

  • Laser altimeter canopy height profiles: methods and validation for closed-canopy, broadleaf forests

    D.J Harding;M.A Lefsky;G.G Parker;J.B Blair

  • Global importance of large‐diameter trees

    James A. Lutz;Tucker J. Furniss;Daniel J. Johnson;Stuart J. Davies

  • Aboveground biomass density models for NASA’s Global Ecosystem Dynamics Investigation (GEDI) lidar mission

    Unknown

  • Evidence for a recent increase in forest growth

    Sean M. McMahon;Geoffrey G. Parker;Dawn R. Miller

  • Remote sensing of vegetation 3-D structure for biodiversity and habitat: Review and implications for lidar and radar spaceborne missions

    K. M. Bergen;S. J. Goetz;R. O. Dubayah;G. M. Henebry

  • Scale-dependent relationships between tree species richness and ecosystem function in forests

    Ryan A. Chisholm;Helene C. Muller-Landau;Kassim Abdul Rahman;Daniel P. Bebber

  • Plant diversity increases with the strength of negative density dependence at the global scale.

    Joseph A. LaManna;Scott A. Mangan;Alfonso Alonso;Norman A. Bourg;Norman A. Bourg

  • Amazon forest carbon dynamics predicted by profiles of canopy leaf area and light environment

    Scott C Stark;Veronika Leitold;Jin L Wu;Maria O Hunter

  • A portable LIDAR system for rapid determination of forest canopy structure

    Geoffrey G. Parker;David J. Harding;Michelle L. Berger

  • Canopy light transmittance in a chronosequence of mixed-species deciduous forests

    Martin J. Brown;Geoffrey G. Parker

  • ForestGEO: Understanding forest diversity and dynamics through a global observatory network

    Stuart J. Davies;Iveren Abiem;Kamariah Abu Salim;Salomón Aguilar

  • Three-dimensional Structure of an Old-growth Pseudotsuga-Tsuga Canopy and Its Implications for Radiation Balance, Microclimate, and Gas Exchange

    Geoffrey G. Parker;Mark E. Harmon;Michael A. Lefsky;Jiquan Chen

  • The canopy surface and stand development: assessing forest canopy structure and complexity with near-surface altimetry

    Geoffrey G Parker;Mary E Russ

  • Mechanical abrasion and intercrown spacing.

    Francis E. Putz;Geoffrey G. Parker;Ruth M. Archibald

  • Lidar Remote Sensing of Aboveground Biomass in Three Biomes

    M. A. Lefsky;W. B. Cohen;D. J. Harding;Geoffrey G. Parker

Frequent Co-Authors

Sean M. McMahon
Sean M. McMahon Smithsonian Environmental Research Center
Stuart J. Davies
Stuart J. Davies Smithsonian Tropical Research Institute
David J. Harding
David J. Harding Goddard Space Flight Center
David Kenfack
David Kenfack Smithsonian Tropical Research Institute
Michael A. Lefsky
Michael A. Lefsky Colorado State University
William J. McShea
William J. McShea Smithsonian Conservation Biology Institute
Stephen P. Hubbell
Stephen P. Hubbell University of California, Los Angeles
Fangliang He
Fangliang He University of Alberta
Nalini M. Nadkarni
Nalini M. Nadkarni University of Utah
James A. Lutz
James A. Lutz Utah State University

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