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Daniel D. Roby

D-Index & Metrics

Ecology and Evolution

D-Index
39
Citations
6093
World Ranking
6375
National Ranking
2164

Daniel D. Roby 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 Daniel D. Roby 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: 156 publications — 56th percentile

56% of scientists in this discipline score the same or lower.

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

Daniel D. Roby 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 Daniel D. Roby 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: 39 D-Index — 26th percentile

26% of scientists in this discipline score the same or lower.

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

Overview

Daniel D. Roby is affiliated with Oregon State University in the United States and mainly works within the field of Environmental Science, contributing to research that spans multiple related subfields.

Their research is particularly focused on Ecology, Nature and Landscape Conservation, Global and Planetary Change, Sociology and Political Science, and Aquatic Science. Key areas of study within these fields include Avian Ecology and Behavior, Fish Ecology and Management Studies, Wildlife Ecology and Conservation, Rangeland and Wildlife Management, Marine and Fisheries Research, Transboundary Water Resource Management, and Aquatic Invertebrate Ecology and Behavior.

Daniel D. Roby has contributed to several publications in various academic venues. Frequent publication venues include The Auk, Ecosphere, PLoS ONE, Fisheries, and Conservation Letters.

  • Squeezed by a habitat split: Warm ocean conditions and old-forest loss interact to reduce long-term occupancy of a threatened seabird (2020, Conservation Letters)
  • Fragmentation effects on an endangered species across a gradient from the interior to edge of its range (2023, Conservation Biology)
  • Measuring the additive effects of predation on prey survival across spatial scales (2020, Ecological Applications)
  • Experimental evidence that social information affects habitat selection in Marbled Murrelets (2021, The Auk)
  • A Review of Factors Affecting the Susceptibility of Juvenile Salmonids to Avian Predation (2023, North American Journal of Fisheries Management)

Collaboration is a notable part of their work, with frequent co-authors including S. Kim Nelson, James W. Rivers, Matthew G. Betts, Ken Collis, and Lindsay J. Adrean. These collaborations have contributed to advancing research in overlapping and complementary areas.

Best Publications

  • Lipid content and energy density of forage fishes from the northern Gulf of Alaska

    J.A. Anthony;D.D. Roby;K.R. Turco

  • Proximate Composition and Energy Density of Some North Pacific Forage Fishes

    Thomas I. Van Pelt;John F. Piatt;Brain K. Lance;Daniel D. Roby

  • Colonial Waterbird Predation on Juvenile Salmonids Tagged with Passive Integrated Transponders in the Columbia River Estuary: Vulnerability of Different Salmonid Species, Stocks, and Rearing Types

    Ken Collis;Daniel D. Roby;David P. Craig;Brad A. Ryan

  • Colony Size and Diet Composition of Piscivorous Waterbirds on the Lower Columbia River: Implications for Losses of Juvenile Salmonids to Avian Predation

    Ken Collis;Daniel D. Roby;David P. Craig;Stephanie Adamany

  • SOCIAL BEHAVIOR AND ECOSYSTEM PROCESSES: RIVER OTTER LATRINES AND NUTRIENT DYNAMICS OF TERRESTRIAL VEGETATION

    M. Ben-David;R. T. Bowyer;L. K. Duffy;D. D. Roby

  • Long-term direct and indirect effects of the 'Exxon Valdez' oil spill on pigeon guillemots in Prince William Sound, Alaska

    Gregory H. Golet;Pamela E. Seiser;A. David McGuire;Daniel D. Roby

  • Short-term fluctuations in forage fish availability and the effect on prey selection and brood-rearing in the black-legged kittiwake Rissa tridactyla

    Robert M. Suryan;David B. Irons;Max Kaufman;Jeb Benson

  • Adult Prey Choice Affects Chick Growth and Reproductive Success in Pigeon Guillemots

    Gregory H. Golet;Katherine J. Kuletz;Daniel D. Roby;David B. Irons

  • Quantifying the effect of predators on endangered species using a bioenergetics approach: Caspian terns and juvenile salmonids in the Columbia River estuary

    Daniel D Roby;Donald E Lyons;David P Craig;Ken Collis

  • Response of pigeon guillemots to variable abundance of high-lipid and low-lipid prey.

    Michael A. Litzow;John F. Piatt;Alexander K. Prichard;Daniel D. Roby

  • Effects of colony relocation on diet and productivity of Caspian terns

    Daniel D. Roby;Ken Collis;Donald E. Lyons;David P. Craig

  • Comparison of Pigeon Guillemot, Cepphus columba, Blood Parameters from Oiled and Unoiled Areas of Alaska Eight Years After the Exxon Valdez Oil Spill

    Pamela E Seiser;Lawrence K Duffy;A David McGuire;Daniel D Roby

  • Mortality Estimates of Juvenile Spring–Summer Chinook Salmon in the Lower Columbia River and Estuary, 1992–1998: Evidence for Delayed Mortality?

    Carl B. Schreck;Thomas P. Stahl;Lawrence E. Davis;Daniel D. Roby

  • Sexing adult black-legged kittiwakes by DNA behavior, and morphology

    P.G.R. Jodice;Richard B. Lanctot;V.A. Gill;D.D. Roby

  • Daily Energy expenditure by Adult Leach's Storm-Petrels during the Nesting Cycle

    Robert E. Ricklefs;Daniel D. Roby;Joseph B. Williams

  • Caspian Tern Predation on Juvenile Salmonids in the Mid-Columbia River

    Michelle Antolos;Daniel D. Roby;Donald E. Lyons;Ken Collis

  • A comparison of two noninvasive techniques to measure total body lipid in live birds

    Daniel D. Roby

  • Testing the Junk-food Hypothesis on Marine Birds: Effects of Prey Type on Growth and Development

    Marc D. Romano;John F. Piatt;Daniel D. Roby

  • Systemwide Evaluation of Avian Predation on Juvenile Salmonids from the Columbia River Based on Recoveries of Passive Integrated Transponder Tags

    Allen F. Evans;Nathan J. Hostetter;Daniel D. Roby;Ken Collis

  • Wind, waves, and wing loading: morphological specialization may limit range expansion of endangered albatrosses.

    Robert M. Suryan;David J. Anderson;Scott A. Shaffer;Daniel D. Roby

  • The Greenland Caribou: Zoogeography, Taxonomy, and Population Dynamics

    Daniel D. Roby;Morten Meldgaard

Frequent Co-Authors

Robert M. Suryan
Robert M. Suryan National Oceanic and Atmospheric Administration
John F. Piatt
John F. Piatt United States Geological Survey
Scott A. Shaffer
Scott A. Shaffer San Jose State University
Alexander S. Kitaysky
Alexander S. Kitaysky University of Alaska Fairbanks
Richard A. Phillips
Richard A. Phillips British Antarctic Survey
A. David McGuire
A. David McGuire University of Alaska Fairbanks
Scott A. Hatch
Scott A. Hatch United States Geological Survey
Matthew G. Betts
Matthew G. Betts Oregon State University
Richard B. Lanctot
Richard B. Lanctot United States Fish and Wildlife Service
Yann Tremblay
Yann Tremblay Institut de Recherche pour le Développement

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Related Online Degrees & Career Pathways

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Even individuals without a nursing background can quickly enter the field through direct entry msn programs for non-nurses online. These accelerated, online options make it easier than ever to combine your interest in science with in-demand careers in health and research, broadening your opportunities in both ecology and healthcare.

Best Scientists Citing Daniel D. Roby

John F. Piatt

John F. Piatt

United States Geological Survey

Publications: 40

Scott A. Hatch

Scott A. Hatch

United States Geological Survey

Publications: 38

Scott A. Shaffer

Scott A. Shaffer

San Jose State University

Publications: 37

Alexander S. Kitaysky

Alexander S. Kitaysky

University of Alaska Fairbanks

Publications: 33

Yutaka Watanuki

Yutaka Watanuki

Hokkaido University

Publications: 28

Kyle H. Elliott

Kyle H. Elliott

McGill University

Publications: 27

Robert M. Suryan

Robert M. Suryan

National Oceanic and Atmospheric Administration

Publications: 22

Andrew W. Trites

Andrew W. Trites

University of British Columbia

Publications: 22

David Grémillet

David Grémillet

Centre national de la recherche scientifique, CNRS

Publications: 21

Etienne G. J. Danchin

Etienne G. J. Danchin

INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement

Publications: 21

Akinori Takahashi

Akinori Takahashi

National Institute of Polar Research

Publications: 21

Daniel P. Costa

Daniel P. Costa

University of California, Santa Cruz

Publications: 20

David W. Welch

David W. Welch

University of Auckland

Publications: 18

John R. Speakman

John R. Speakman

University of Aberdeen

Publications: 17

William J. Sydeman

William J. Sydeman

Farallon Institute

Publications: 17

Pablo Yorio

Pablo Yorio

National Scientific and Technical Research Council

Publications: 15

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