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Thomas R. Loughlin

D-Index & Metrics

Ecology and Evolution

D-Index
33
Citations
4330
World Ranking
7866
National Ranking
2630

Thomas R. Loughlin 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 R. Loughlin 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: 77 publications — 5th percentile

5% of scientists in this discipline score the same or lower.

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

Thomas R. Loughlin 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 R. Loughlin 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: 33 D-Index — 8th percentile

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

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

Research.com Recognitions

  • 2009 - Fellow of the American Society of Mechanical Engineers

Overview

Thomas R. Loughlin is affiliated with the National Marine Fisheries Service in the United States. Their work spans multiple fields within both the life sciences and humanities, with publications recorded in Biochemistry, Genetics and Molecular Biology as well as Arts and Humanities. The subfields covered include Archeology, Physiology, Genetics, Aging, and Anthropology.

Their research topics focus on several specialized areas, including:

  • Spaceflight effects on biology
  • High Altitude and Hypoxia
  • Genetics, Aging, and Longevity in Model Organisms
  • Classical Antiquity Studies
  • Ancient Egypt and Archaeology
  • Ancient Mediterranean Archaeology and History

Among the notable recent papers associated with their research are:

  • The Impact of Hindlimb Suspension on the Rat Eye: A Molecular and Histological Analysis of the Retina (2021, Gravitational and Space Research)
  • EXCAVATIONS IN THE ANCIENT THEATRE OF SPARTA, 2008 (2024, The Annual of the British School at Athens)

Frequent coauthors collaborating with Thomas R. Loughlin include:

  • Corey A. Theriot
  • Patricia Chévez-Barrios
  • Afshin Beheshti
  • Nathaniel D. Mercaldo
  • Susana B. Zanello

The venues publishing their work feature:

  • Gravitational and Space Research
  • The Annual of the British School at Athens

In recognition of their professional contributions, Thomas R. Loughlin received the title of Fellow of the American Society of Mechanical Engineers in 2009.

Best Publications

  • Foraging behavior of adult female and young-of-the-year Steller sea lions in Alaskan waters

    Richard L. Merrick;Thomas R. Loughlin

  • High Variability for Control-Region Sequences in a Marine Mammal: Implications for Conservation and Biogeography of Steller Sea Lions (Eumetopias jubatus)

    John W. Bickham;John C. Patton;Thomas R. Loughlin

  • RANGE‐WIDE SURVEY AND ESTIMATION OF TOTAL NUMBER OF STELLER SEA LIONS IN 1989

    Thomas R. Loughlin;Adolf S. Perlov;Valery A. Vladimirov

  • Oceanographic features related to northern fur seal migratory movements

    Rolf R. Ream;Jeremy T. Sterling;Thomas R. Loughlin

  • DECLINE IN ABUNDANCE OF THE NORTHERN SEA LION, EUMETOPIAS JUBATUS, IN ALASKA, 1956·86

    Richard L. Merrick;Thomas R. Loughlin;Donald G. Calkins

  • Dynamics of the Bering Sea

    Unknown

  • Separation of foraging habitat among breeding sites of a colonial marine predator, the northern fur seal (Callorhinus ursinus)

    Bruce W Robson;Michael E Goebel;Jason D Baker;Rolf R Ream

  • Relationship between Fish Size and Otolith Length for 63 Species of Fishes from the Eastern North Pacific Ocean

    Unknown

  • DISPERSAL, ROOKERY FIDELITY, AND METAPOPULATION STRUCTURE OF STELLER SEA LIONS (EUMETOPIAS JUBATUS) IN AN INCREASING AND A DECREASING POPULATION IN ALASKA

    Kimberly L. Raum-Suryan;Kenneth W. Pitcher;Donald G. Calkins;John L. Sease

  • Aerial and Land-Based Surveys of Steller Sea Lions (Eumetopias jubatus)

    J. L. Sease;W. P. Taylor;T. R. Loughlin;K. W. Pitcher

  • Deep genetic subdivision within a continuously distributed and highly vagile marine mammal, the Steller's sea lion (Eumetopias jubatus)

    Joseph Hoffman;C. Matson;C. Matson;W. Amos;T.R. Loughlin

  • Diving behavior of immature Steller sea lions (Eumetopias jubatus)

    Thomas R. Loughlin;Jeremy T. Sterling;Richard L. Merrick;John L. Sease

  • Characteristics of feeding trips of female northern fur seals

    Thomas R. Loughlin;John L. Bengtson;Richard L. Merrick

  • The Steller sea lion : A declining species

    Thomas R. Loughlin

  • Northern sea lion distribution and abundance: 1956-80

    Thomas R. Loughlin;David J. Rugh;Clifford H. Fiscus

  • KILLER WHALES AND MARINE MAMMAL TRENDS IN THE NORTH PACIFIC—A RE-EXAMINATION OF EVIDENCE FOR SEQUENTIAL MEGAFAUNA COLLAPSE AND THE PREY-SWITCHING HYPOTHESIS

    Paul R. Wade;Vladimir N. Burkanov;Marilyn E. Dahlheim;Nancy A. Friday

  • Health status of young Alaska Steller sea lion pups (Eumetopias jubatus) as indicated by blood chemistry and hematology.

    Lorrie D Rea;Lorrie D Rea;Michael A Castellini;Brian S Fadely;T.R Loughlin

  • An Accounting of the Sources of Steller Sea Lion, Eumetopias jubatus, Mortality

    Thomas R. Loughlin;Anne E. York

  • Persistent organochlorines in Steller sea lion (Eumetopias jubatus) from the bulk of Alaska and the Bering Sea, 1976–1981

    J.S. Lee;S. Tanabe;H. Umino;R. Tatsukawa

  • Variation of Mitochondrial Control Region Sequences of Steller Sea Lions: the Three-Stock Hypothesis

    Alyson R. Baker;Thomas R. Loughlin;Vladimir Burkanov;Cole W. Matson

  • Use of satellite-linked telemetry to study Steller sea lion and northern fur seal foraging

    R. L. Merrick;T. R. Loughlin;G. A. Antonelis;R. Hill

  • GENETIC VARIABILITY AND POPULATION DECLINE IN STELLER SEA LIONS FROM THE GULF OF ALASKA

    John W. Bickham;Thomas R. Loughlin;Donald G. Calkins;Jeffrey K. Wickliffe

Frequent Co-Authors

John W. Bickham
John W. Bickham Texas A&M University
Ryo Tatsukawa
Ryo Tatsukawa Ehime University
Cole W. Matson
Cole W. Matson Baylor University
Sue E. Moore
Sue E. Moore University of Washington
Shinsuke Tanabe
Shinsuke Tanabe Ehime University
Grey W. Pendleton
Grey W. Pendleton Alaska Department of Fish and Game
Randall W. Davis
Randall W. Davis Texas A&M University
Terry R. Spraker
Terry R. Spraker Colorado State University
John K. B. Ford
John K. B. Ford Fisheries and Oceans Canada
Terrie M. Williams
Terrie M. Williams University of California, Santa Cruz

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Related Online Degrees & Career Pathways

A background in Ecology and Evolution opens doors to a wide range of online degrees and career paths in the USA. Many of these options allow you to build on your scientific foundation, whether you’re considering graduate credentials or branching into new fields.

For those interested in information science or education, take a look at how much does it cost to become a librarian. This can help you compare affordability and program structure, especially if you are passionate about data, archives, or outreach.

Alternative health and communication careers are also accessible online. The asha accredited slpa programs ensure you receive respected credentials in Speech-Language Pathology. If your bachelor’s degree isn’t in this field, consider enrolling in an slp bridge program to smoothly transition and meet prerequisites.

Interested in health care? Some students leverage their life science background and pursue online bsn programs for non nurses, which provide an accelerated path toward nursing qualifications. No matter your goal, these flexible online pathways can help turn your passion for ecology into diverse careers.

Best Scientists Citing Thomas R. Loughlin

Andrew W. Trites

Andrew W. Trites

University of British Columbia

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David A. S. Rosen

David A. S. Rosen

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Daniel P. Costa

Daniel P. Costa

University of California, Santa Cruz

Publications: 38

Shinsuke Tanabe

Shinsuke Tanabe

Ehime University

Publications: 33

Grey W. Pendleton

Grey W. Pendleton

Alaska Department of Fish and Game

Publications: 18

Christophe Guinet

Christophe Guinet

Centre national de la recherche scientifique, CNRS

Publications: 16

Simon D. Goldsworthy

Simon D. Goldsworthy

South Australian Research and Development Institute

Publications: 16

Frances M. D. Gulland

Frances M. D. Gulland

University of California, Davis

Publications: 15

Steven H. Ferguson

Steven H. Ferguson

Fisheries and Oceans Canada

Publications: 15

John P. Y. Arnould

John P. Y. Arnould

Deakin University

Publications: 15

Takashi Kunito

Takashi Kunito

Shinshu University

Publications: 14

Todd M. O'Hara

Todd M. O'Hara

University of Alaska Fairbanks

Publications: 14

Nobuyuki Miyazaki

Nobuyuki Miyazaki

University of Tokyo

Publications: 13

B. Louise Chilvers

B. Louise Chilvers

Massey University

Publications: 13

John W. Bickham

John W. Bickham

Texas A&M University

Publications: 13

Gina M. Ylitalo

Gina M. Ylitalo

National Oceanic and Atmospheric Administration

Publications: 12

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