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Environmental Sciences
South Africa
2025

D-Index & Metrics

Environmental Sciences

D-Index
41
Citations
10923
World Ranking
7569
National Ranking
14

David A. Ebert 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 David A. Ebert 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: 202 publications — 65th percentile

65% of scientists in this discipline score the same or lower.

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

David A. Ebert 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 David A. Ebert 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: 41 D-Index — 22nd percentile

22% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2025 - Research.com Environmental Sciences in South Africa Leader Award

Overview

David A. Ebert is affiliated with the South African Institute for Aquatic Biodiversity in South Africa. Their research focuses mainly on ichthyology and marine biology, with significant contributions to fish biology and ecology studies as well as fish ecology and management studies. The primary fields of study encompassing their work are environmental science and agricultural and biological sciences.

The scientist's research interests also extend into subfields such as nature and landscape conservation, aquatic science, global and planetary change, molecular biology, and ecology. Main topics covered throughout their career include ichthyology and marine biology, fish biology and ecology studies, fish ecology and management studies, identification and quantification in food, marine ecology and invasive species, fish biology, ecology, and behavior, as well as marine animal studies overview.

David A. Ebert has coauthored publications with several frequent collaborators, including:

  • Marc Dando
  • Sarah Fowler
  • Rima W. Jabado
  • Nicholas K. Dulvy

Their work appears regularly in scientific journals with notable publication venues such as:

  • Marine Biodiversity
  • Zenodo (CERN European Organization for Nuclear Research)
  • Zootaxa
  • Environmental Biology of Fishes
  • Revista de biología marina y oceanografía

Recent papers coauthored or authored by David A. Ebert include:

  • "Overfishing drives over one-third of all sharks and rays toward a global extinction crisis," 2021, Current Biology
  • "The thin edge of the wedge: Extremely high extinction risk in wedgefishes and giant guitarfishes," 2020, Aquatic Conservation Marine and Freshwater Ecosystems
  • "An annotated checklist of the chondrichthyans of South Africa," 2021, Zootaxa
  • "Fishing for oil and meat drives irreversible defaunation of deepwater sharks and rays," 2024, Science

David A. Ebert has also contributed extensively to books published by Princeton University Press, including multiple editions and titles such as Sharks of the World (2021), A Pocket Guide to Sharks of the World (2021), and Field Guide to Sharks, Rays and Chimaeras of Europe and the Mediterranean (2020). A recent book on the east coast of North America was published in 2024.

Another book publication includes Highly migratory shark fisheries research by the National Shark Research Consortium (NSRC), 2002-2007 (2021), published by UNESCO.

Best Publications

  • Extinction risk and conservation of the world's sharks and rays

    Nicholas K. Dulvy;Sarah L. Fowler;John A. Musick;Rachel D. Cavanagh

  • Sharks of the World

    David Ebert;Sarah Fowler;Leonard Compagno

  • Overfishing drives over one-third of all sharks and rays toward a global extinction crisis.

    Nicholas K. Dulvy;Nathan Pacoureau;Cassandra L. Rigby;Riley A. Pollom

  • Sharks of the World: A Fully Illustrated Guide

    David A. Ebert;Sarah Fowler;Leonard Compagno

  • Guide to the Sharks and Rays of Southern Africa

    Leonard J. V. Compagno;David A. Ebert;Malcolm J. Smale

  • Standardized diet compositions and trophic levels of skates (Chondrichthyes: Rajiformes: Rajoidei)

    David A. Ebert;Joseph J. Bizzarro

  • Breaking with tradition: redefining measures for diet description with a case study of the Aleutian skate Bathyraja aleutica (Gilbert 1896)

    Simon C. Brown;Joseph J. Bizzarro;Joseph J. Bizzarro;Gregor M. Cailliet;David A. Ebert

  • Reproductive biology of skates, Bathyraja(Ishiyama), along the eastern Bering Sea continental slope

    D. A. Ebert

  • Comparative feeding ecology of four sympatric skate species off central California, USA

    Joseph J. Bizzarro;Heather J. Robinson;Christopher S. Rinewalt;David A. Ebert

  • Biodiversity and systematics of skates (Chondrichthyes: Rajiformes: Rajoidei)

    David A. Ebert;Leonard J. V. Compagno

  • Resurrection and redescription of Squalus suckleyi (Girard, 1854) from the North Pacific, with comments on the Squalus acanthias subgroup (Squaliformes: Squalidae)

    David A. Ebert;William T. White;Kenneth J. Goldman;Leonard J. V. Compagno

  • Ontogenetic changes in the diet of the sevengill shark (Notorynchus cepedianus)

    David A. Ebert

  • Distribution of offshore demersal cartilaginous fish (Class Chondrichthyes) off the west coast of southern Africa, with notes on their systematics

    L. J. V. Compagno;D. A. Ebert;P. D. Cowley

  • The thin edge of the wedge: Extremely high extinction risk in wedgefishes and giant guitarfishes

    Peter M. Kyne;Rima W. Jabado;Cassandra L. Rigby;Dharmadi

  • Observations on the predatory behaviour of the sevengill shark Notorynchus cepedianus

    D. A. Ebert

  • A preliminary investigation of the feeding ecology of skates (Batoidea: Rajidae) off the west coast of southern Africa

    D. A. Ebert;P. D. Cowley;L. J. V. Compagno

  • Troubled waters: threats and extinction risk of the sharks, rays and chimaeras of the Arabian Sea and adjacent waters

    Rima W. Jabado;Peter M. Kyne;Riley A. Pollom;David A. Ebert

  • Diet of the sixgill shark Hexanchus griseus off southern Africa

    D. A. Ebert

  • Diet, feeding behaviour and habitat utilisation of the blue stingray Dasyatis chrysonota (Smith, 1828) in South African waters

    David A. Ebert;Paul D. Cowley

  • Reproductive biology of catsharks (Chondrichthyes: Scyliorhinidae) off the west coast of southern Africa

    David A. Ebert;Leonard J.V. Compagno;Paul D. Cowley

  • An overview on the role of Hexanchiformes in marine ecosystems: biology, ecology and conservation status of a primitive order of modern sharks

    A. Barnett;J. M. Braccini;C. A. Awruch;C. A. Awruch;D. A. Ebert;D. A. Ebert

  • An annotated checklist of the chondrichthyans of South Africa.

    David A. Ebert;Sabine P. Wintner;Peter M. Kyne

  • Comparative feeding ecology of four sympatric skate species off central California, USA

    Unknown

  • Chondrichthyans of High Latitude Seas

    David Ebert;Megan Winton

  • Food habits of the sandpaper skate, Bathyraja kincaidii (Garman, 1908) off central California: seasonal variation in diet linked to oceanographic conditions

    Christopher S. Rinewalt;David A. Ebert;Gregor M. Cailliet

  • Author response: Extinction risk and conservation of the world’s sharks and rays

    Nicholas K Dulvy;Sarah L Fowler;John A Musick;Rachel D Cavanagh

Frequent Co-Authors

Gregor M. Cailliet
Gregor M. Cailliet Moss Landing Marine Laboratories
William T. White
William T. White Commonwealth Scientific and Industrial Research Organisation
Nicholas K. Dulvy
Nicholas K. Dulvy Simon Fraser University
Peter Kyne
Peter Kyne Charles Darwin University
Paul D. Cowley
Paul D. Cowley South African Institute for Aquatic Biodiversity
Gavin J. P. Naylor
Gavin J. P. Naylor Florida Museum of Natural History
Colin A. Simpfendorfer
Colin A. Simpfendorfer James Cook University
John A. Musick
John A. Musick Virginia Institute of Marine Science
Janine N. Caira
Janine N. Caira University of Connecticut
Malcolm P. Francis
Malcolm P. Francis National Institute of Water and Atmospheric Research

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