World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
37
Citations
6385
World Ranking
8839
National Ranking
3170

Todd V. Royer 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 Todd V. Royer 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: 282 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: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 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 681–689 publications: 4 scientists 690+ publications: 100 scientists
41 publications 690+

This scientist: 89 publications — 8th percentile

8% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

Todd V. Royer 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 Todd V. Royer 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: 198 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: 20 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: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 37 D-Index — 10th percentile

10% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

Overview

Todd V. Royer is affiliated with Indiana University in the United States and conducts research primarily in the fields of Environmental Science and Agricultural and Biological Sciences. Their work focuses on topics such as soil and water nutrient dynamics, hydrology and watershed management studies, and soil erosion and sediment transport.

Their research emphasizes understanding nutrient mobilization and transport mechanisms in agricultural and aquatic ecosystems. This is reflected in their recent publications, which address various aspects of nutrient cycling, cover crop impacts, and environmental controls on nutrient retention.

Recent papers include:

  • Storm size and hydrologic modification influence nitrate mobilization and transport in agricultural watersheds, 2021, Biogeochemistry
  • Cover crops control nitrogen and phosphorus transport from two agricultural watersheds at multiple measurement scales, 2021, Agriculture Ecosystems & Environment
  • Seasonal evaluation of biotic and abiotic factors suggests phosphorus retention in constructed floodplains in three agricultural streams, 2020, The Science of The Total Environment
  • Effect of winter cover crops on soil nutrients in two row-cropped watersheds in Indiana, 2021, Journal of Environmental Quality
  • Global Patterns and Controls of Nutrient Immobilization on Decomposing Cellulose in Riverine Ecosystems, 2022, Global Biogeochemical Cycles

Frequent co-authors collaborating with Todd V. Royer include:

  • Jennifer L. Tank
  • Shannon L. Speir
  • Ursula H. Mahl
  • Lienne R. Sethna
  • Matt T. Trentman

The researcher's work has been published repeatedly in several scientific venues, indicating sustained engagement in specific journals. Frequent publication venues include:

  • Biogeochemistry
  • Agriculture Ecosystems & Environment
  • The Science of The Total Environment
  • Hydrological Processes
  • Journal of Environmental Quality

Their main fields of study are Environmental Science, with 35 publications, and Agricultural and Biological Sciences, with 9 publications. Subfields of study in their research portfolio include:

  • Environmental Chemistry
  • Water Science and Technology
  • Soil Science
  • Ecology
  • Nature and Landscape Conservation

Todd V. Royer's scholarly contributions are concentrated on multiple interconnected topics, including:

  • Soil and Water Nutrient Dynamics
  • Hydrology and Watershed Management Studies
  • Soil erosion and sediment transport
  • Fish Ecology and Management Studies
  • Freshwater macroinvertebrate diversity and ecology
  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Soil Carbon and Nitrogen Dynamics

Best Publications

  • Timing of Riverine Export of Nitrate and Phosphorus from Agricultural Watersheds in Illinois: Implications for Reducing Nutrient Loading to the Mississippi River

    Todd V. Royer;Mark B. David;Lowell E. Gentry

  • Toxins in transgenic crop byproducts may affect headwater stream ecosystems

    E. J. Rosi-Marshall;J. L. Tank;T. V. Royer;M. R. Whiles

  • Transport and fate of nitrate in headwater agricultural streams in Illinois.

    Todd V. Royer;Jennifer L. Tank;Mark B. David

  • Phosphorus transport pathways to streams in tile-drained agricultural watersheds.

    L. E. Gentry;M. B. David;T. V. Royer;C. A. Mitchell

  • Diversity of Fungi, Bacteria, and Actinomycetes on Leaves Decomposing in a Stream

    Mitali Das;Todd V. Royer;Laura Gunn Leff

  • Nutrient uptake in streams draining agricultural catchments of the midwestern United States

    Melody J. Bernot;Jennifer L. Tank;Todd V. Royer;Mark B. David

  • Benthic organic carbon influences denitrification in streams with high nitrate concentration

    Clay P. Arango;Jennifer L. Tank;Jamie L. Schaller;Todd V. Royer

  • Pharmaceutical Compounds and Ecosystem Function: An Emerging Research Challenge for Aquatic Ecologists

    Emma J. Rosi-Marshall;Todd V. Royer

  • Pharmaceuticals suppress algal growth and microbial respiration and alter bacterial communities in stream biofilms

    Emma J. Rosi-Marshall;Dustin W. Kincaid;Heather A. Bechtold;Todd V. Royer

  • Global patterns and drivers of ecosystem functioning in rivers and riparian zones

    Scott D. Tiegs;David M. Costello;Mark W. Isken;Guy Woodward

  • DENITRIFICATION AND THE NITROGEN BUDGET OF A RESERVOIR IN AN AGRICULTURAL LANDSCAPE

    Mark B. David;Lareina G. Wall;Todd V. Royer;Jennifer L. Tank

  • Export of dissolved organic carbon from agricultural streams in Illinois, USA

    Todd V. Royer;Mark B. David

  • Effects of nutrient enrichment and leaf quality on the breakdown of leaves in a hardwater stream

    Todd V. Royer;G. Wayne Minshall

  • Occurrence of maize detritus and a transgenic insecticidal protein (Cry1Ab) within the stream network of an agricultural landscape

    Jennifer L. Tank;Emma J. Rosi-Marshall;Todd V. Royer;Matt R. Whiles

  • Nitrogen Mass Balance of a Tile-drained Agricultural Watershed in East-Central Illinois

    Lowell E. Gentry;Mark B. David;Frederick E. Below;Todd V. Royer

  • Denitrification associated with plants and sediments in an agricultural stream

    Jamie L. Schaller;Todd V. Royer;Todd V. Royer;Mark B. David;Jennifer L. Tank

  • Spatial and Temporal Variability in Sediment Denitrification Within an Agriculturally Influenced Reservoir

    Lareina G. Wall;Jennifer L. Tank;Todd V. Royer;Melody J. Bernot

  • Agricultural land use alters the seasonality and magnitude of stream metabolism

    Natalie A. Griffiths;Jennifer L. Tank;Todd V. Royer;Sarah S. Roley

  • Responses of stream macroinvertebrates to Bt maize leaf detritus.

    Catherine P. Chambers;Matt R. Whiles;Emma J. Rosi-Marshall;Jennifer L. Tank

  • Relationships among nutrients, chlorophyll-a, and dissolved oxygen in agricultural streams in Illinois.

    Allyson M. Morgan;Todd V. Royer;Mark B. David;Lowell E. Gentry

Frequent Co-Authors

Jennifer L. Tank
Jennifer L. Tank University of Notre Dame
Mark B. David
Mark B. David University of Illinois at Urbana-Champaign
Natalie A. Griffiths
Natalie A. Griffiths Oak Ridge National Laboratory
Emma J. Rosi-Marshall
Emma J. Rosi-Marshall Loyola University Chicago
Matt R. Whiles
Matt R. Whiles University of Florida
G. Wayne Minshall
G. Wayne Minshall Idaho State University
Laura Gunn Leff
Laura Gunn Leff Kent State University
John D. Graham
John D. Graham Indiana University
Adam S. Ward
Adam S. Ward Oregon State University
Christopher T. Robinson
Christopher T. Robinson Swiss Federal Institute of Aquatic Science and Technology

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