World's Best Scientists 2026 revealed!

D-Index & Metrics

Ecology and Evolution

D-Index
30
Citations
2809
World Ranking
8374
National Ranking
520

Thomas G. Pypker 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 Thomas G. Pypker 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: 110 publications — 25th percentile

25% of scientists in this discipline score the same or lower.

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

Thomas G. Pypker 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 Thomas G. Pypker 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: 30 D-Index — 1st percentile

1% of scientists in this discipline score the same or lower.

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

Overview

Thomas G. Pypker is affiliated with Thompson Rivers University in Canada and has contributed extensively to research in environmental science and agricultural and biological sciences. Their work primarily focuses on plant water relations and carbon dynamics, tree-ring climate responses, and hydrology and sediment transport processes, among other related topics.

The main fields of study for Thomas G. Pypker include:

  • Environmental Science
  • Agricultural and Biological Sciences

Subfields in which the researcher has published work comprise:

  • Global and Planetary Change
  • Ecology
  • Atmospheric Science
  • Plant Science
  • Ecology, Evolution, Behavior and Systematics

The main topics covered in their research are:

  • Plant Water Relations and Carbon Dynamics
  • Tree-ring climate responses
  • Hydrology and Sediment Transport Processes
  • Fire effects on ecosystems
  • Botany and Plant Ecology Studies
  • Climate variability and models
  • Atmospheric and Environmental Gas Dynamics

Thomas G. Pypker has published in several frequent venues, including:

  • Journal of Arid Environments
  • Ecohydrology
  • Plant and Soil
  • Hydrological Processes
  • Agricultural Water Management

Recent papers authored by or associated with Thomas G. Pypker include:

  • Effects of irrigation on oil palm transpiration during ENSO-induced drought in the Brazilian Eastern Amazon (2020, Agricultural Water Management)
  • The effectiveness of urban trees in reducing airborne particulate matter by dry deposition in Tehran, Iran (2021, Environmental Monitoring and Assessment)
  • Canopy settings shape elemental composition of the epiphytic lichen Lobaria pulmonaria in unmanaged conifer forests (2020, Ecological Indicators)
  • The variability of stemflow generation in a natural beech stand (Fagus orientalis Lipsky) in relation to rainfall and tree traits (2020, Ecohydrology)
  • Maximum heat ratio: bi-directional method for fast and slow sap flow measurements (2021, Plant and Soil)

Frequent co-authors collaborating with Thomas G. Pypker include:

  • Pedram Attarod
  • Vilma Bayramzadeh
  • Jose Gutiérrez López
  • Julián Licata
  • Heidi Asbjornsen

Best Publications

  • The importance of canopy structure in controlling the interception loss of rainfall: Examples from a young and an old-growth Douglas-fir forest

    Thomas G. Pypker;Barbara J. Bond;Timothy E. Link;Danny Marks

  • A Review and Evaluation of Forest Canopy Epiphyte Roles in the Partitioning and Chemical Alteration of Precipitation

    John T. Van Stan;Thomas G. Pypker

  • Precision and accuracy of three alternative instruments for measuring soil water content in two forest soils of the Pacific Northwest

    Nicole M Czarnomski;Georgianne W Moore;Tom G Pypker;Julian Licata

  • Monthly gridded data product of northern wetland methane emissions based on upscaling eddy covariance observations

    Olli Peltola;Timo Vesala;Yao Gao;Olle Räty

  • The role of epiphytes in rainfall interception by forests in the Pacific Northwest. II. Field measurements at the branch and canopy scale

    Thomas G. Pypker;Michael H. Unsworth;Barbara J. Bond

  • Efficiency of the reformulated Gash's interception model in semiarid afforestations

    Seyed Mohammad Moein Sadeghi;Pedram Attarod;John Toland Van Stan;Thomas Grant Pypker

  • The importance of considering rainfall partitioning in afforestation initiatives in semiarid climates: A comparison of common planted tree species in Tehran, Iran.

    Seyed Mohammad Moein Sadeghi;Pedram Attarod;John Toland Van Stan;Thomas Grant Pypker

  • The role of epiphytes in rainfall interception by forests in the Pacific Northwest. I. Laboratory measurements of water storage

    Thomas G Pypker;Michael H Unsworth;Barbara J Bond

  • Canopy Structure in Relation to Hydrological and Biogeochemical Fluxes

    Thomas G. Pypker;Delphis F. Levia;Jeroen Staelens;John T. Van Stan

  • Long-term water table manipulations alter peatland gaseous carbon fluxes in Northern Michigan

    Drew M. Ballantyne;John A. Hribljan;Thomas G. Pypker;Rodney A. Chimner

  • The effect of long‐term water table manipulations on dissolved organic carbon dynamics in a poor fen peatland

    John A. Hribljan;John A. Hribljan;Evan S. Kane;Evan S. Kane;Thomas G. Pypker;Thomas G. Pypker;Rodney A. Chimner

  • Response of Platanus orientalis leaves to urban pollution by heavy metals

    Esmaiel Khosropour;Pedram Attarod;Anoushirvan Shirvany;Thomas Grant Pypker

  • Ecosystem CO2 flux over two growing seasons for a sub-Boreal clearcut 5 and 6 years after harvest

    Thomas G Pypker;Arthur L Fredeen

  • Below ground CO2 efflux from cut blocks of varying ages in sub-boreal British Columbia

    Thomas G Pypker;Arthur L Fredeen

  • Peat porewater dissolved organic carbon concentration and lability increase with warming: a field temperature manipulation experiment in a poor-fen

    Evan S. Kane;Evan S. Kane;Lynn R. Mazzoleni;Carley J. Kratz;John A. Hribljan

  • Review of Ecosystem Level Impacts of Emerald Ash Borer on Black Ash Wetlands: What Does the Future Hold?

    Randall K. Kolka;Anthony W. D'Amato;Joseph W. Wagenbrenner;Robert A. Slesak

  • Multi-decadal Changes in Water Table Levels Alter Peatland Carbon Cycling

    Rodney A. Chimner;Thomas G. Pypker;Thomas G. Pypker;John A. Hribljan;Paul A. Moore

  • Importance of transitional leaf states in canopy rainfall partitioning dynamics

    Seyed Mohammad Moein Sadeghi;Seyed Mohammad Moein Sadeghi;John Toland Van Stan;Thomas Grant Pypker;Jelveh Tamjidi

  • Canopy Hydrometeorological Dynamics Across a Chronosequence of a Globally Invasive Species, Ailanthus Altissima (Mill., Tree of Heaven)

    Seyed Mohammad Moein Sadeghi;John Toland Van Stan;Thomas Grant Pypker;Jan Friesen

  • Effect of long-term water table manipulation on peatland evapotranspiration

    P.A. Moore;T.G. Pypker;J.M. Waddington

  • Open Top Chambers and Infrared Lamps: A Comparison of Heating Efficacy and CO2/CH4 Dynamics in a Northern Michigan Peatland

    C. P. Johnson;C. P. Johnson;T. G. Pypker;J. A. Hribljan;R. A. Chimner

  • USING NOCTURNAL COLD AIR DRAINAGE FLOW TO MONITOR ECOSYSTEM PROCESSES IN COMPLEX TERRAIN

    Thomas G. Pypker;Thomas G. Pypker;Michael H. Unsworth;Alan C. Mix;William Rugh

  • Cold air drainage in a forested valley: Investigating the feasibility of monitoring ecosystem metabolism

    T.G. Pypker;T.G. Pypker;M.H. Unsworth;B. Lamb;E. Allwine

Frequent Co-Authors

Randall K. Kolka
Randall K. Kolka US Forest Service
Barbara J. Bond
Barbara J. Bond Oregon State University
Michael H. Unsworth
Michael H. Unsworth Oregon State University
Heidi Asbjornsen
Heidi Asbjornsen University of New Hampshire
Alan C. Mix
Alan C. Mix Oregon State University
Rodney A. Chimner
Rodney A. Chimner Michigan Technological University
Evan S. Kane
Evan S. Kane Michigan Technological University
David L Dunkerley
David L Dunkerley Monash University
James M. Waddington
James M. Waddington McMaster University
Rafael S. Oliveira
Rafael S. Oliveira State University of Campinas

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