| Discipline name | D-Index | World Ranking | Current World Ranking | National Ranking | Current National Ranking | Publications | Citations |
|---|---|---|---|---|---|---|---|
| Biology and Biochemistry | 123 | 558 | 501 | 32 | 30 | 759 | 54467 |
The chart shows the history of publications by John R. Speakman between 1984 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John R. Speakman published across 43 years, from 1984 to 2026, averaging 20.9 papers a year. Output peaked at 46 publications in 2013. 30 of the 897 publications appeared in the last two years.
897 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1984 | 1 |
| 1985 | 0 |
| 1986 | 4 |
| 1987 | 4 |
| 1988 | 3 |
| 1989 | 4 |
| 1990 | 5 |
| 1991 | 10 |
| 1992 | 13 |
| 1993 | 13 |
| 1994 | 16 |
| 1995 | 13 |
| 1996 | 8 |
| 1997 | 11 |
| 1998 | 9 |
| 1999 | 14 |
| 2000 | 28 |
| 2001 | 37 |
| 2002 | 17 |
| 2003 | 17 |
| 2004 | 20 |
| 2005 | 24 |
| 2006 | 19 |
| 2007 | 40 |
| 2008 | 26 |
| 2009 | 19 |
| 2010 | 25 |
| 2011 | 22 |
| 2012 | 28 |
| 2013 | 46 |
| 2014 | 23 |
| 2015 | 40 |
| 2016 | 29 |
| 2017 | 32 |
| 2018 | 39 |
| 2019 | 27 |
| 2020 | 36 |
| 2021 | 45 |
| 2022 | 31 |
| 2023 | 40 |
| 2024 | 29 |
| 2025 | 29 |
| 2026 | 1 |
| Total | 897 |
The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where John R. Speakman sits on this spectrum.
This scientist: 759 publications — 99th percentile
99% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 1,028 publications or more.
| Publications | Scientists | This scientist |
|---|---|---|
| 47–56 | 8 | |
| 57–66 | 35 | |
| 67–76 | 106 | |
| 77–86 | 231 | |
| 87–96 | 413 | |
| 97–106 | 546 | |
| 107–116 | 704 | |
| 117–126 | 848 | |
| 127–136 | 980 | |
| 137–146 | 942 | |
| 147–156 | 969 | |
| 157–166 | 949 | |
| 167–176 | 951 | |
| 177–186 | 915 | |
| 187–196 | 787 | |
| 197–206 | 840 | |
| 207–216 | 733 | |
| 217–226 | 708 | |
| 227–236 | 651 | |
| 237–246 | 605 | |
| 247–256 | 510 | |
| 257–266 | 524 | |
| 267–276 | 434 | |
| 277–286 | 417 | |
| 287–296 | 350 | |
| 297–306 | 363 | |
| 307–316 | 315 | |
| 317–326 | 296 | |
| 327–336 | 261 | |
| 337–346 | 240 | |
| 347–356 | 219 | |
| 357–366 | 196 | |
| 367–376 | 154 | |
| 377–386 | 161 | |
| 387–396 | 155 | |
| 397–406 | 145 | |
| 407–416 | 124 | |
| 417–426 | 112 | |
| 427–436 | 132 | |
| 437–446 | 116 | |
| 447–456 | 99 | |
| 457–466 | 81 | |
| 467–476 | 91 | |
| 477–486 | 80 | |
| 487–496 | 80 | |
| 497–506 | 59 | |
| 507–516 | 36 | |
| 517–526 | 46 | |
| 527–536 | 54 | |
| 537–546 | 44 | |
| 547–556 | 43 | |
| 557–566 | 43 | |
| 567–576 | 42 | |
| 577–586 | 25 | |
| 587–596 | 34 | |
| 597–606 | 23 | |
| 607–616 | 33 | |
| 617–626 | 31 | |
| 627–636 | 27 | |
| 637–646 | 25 | |
| 647–656 | 28 | |
| 657–666 | 34 | |
| 667–676 | 18 | |
| 677–686 | 16 | |
| 687–696 | 10 | |
| 697–706 | 12 | |
| 707–716 | 21 | |
| 717–726 | 12 | |
| 727–736 | 12 | |
| 737–746 | 10 | |
| 747–756 | 7 | |
| 757–766 | 13 | 759 |
| 767–776 | 15 | |
| 777–786 | 13 | |
| 787–796 | 9 | |
| 797–806 | 9 | |
| 807–816 | 7 | |
| 817–826 | 4 | |
| 827–836 | 9 | |
| 837–846 | 7 | |
| 847–856 | 3 | |
| 857–866 | 5 | |
| 867–876 | 5 | |
| 877–886 | 11 | |
| 887–896 | 3 | |
| 897–906 | 4 | |
| 907–916 | 7 | |
| 917–926 | 5 | |
| 927–936 | 6 | |
| 937–946 | 6 | |
| 947–956 | 3 | |
| 957–966 | 7 | |
| 967–976 | 2 | |
| 977–986 | 2 | |
| 987–996 | 1 | |
| 997–1,006 | 5 | |
| 1,007–1,016 | 2 | |
| 1,017–1,026 | 2 | |
| 1,027 | 1 | |
| 1,028+ | 100 |
The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where John R. Speakman sits on this spectrum.
This scientist: 123 D-Index — 97th percentile
97% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 167 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 40–41 | 80 | |
| 42–43 | 183 | |
| 44–45 | 316 | |
| 46–47 | 504 | |
| 48–49 | 718 | |
| 50–51 | 899 | |
| 52–53 | 1,025 | |
| 54–55 | 1,149 | |
| 56–57 | 1,235 | |
| 58–59 | 1,253 | |
| 60–61 | 1,162 | |
| 62–63 | 1,130 | |
| 64–65 | 1,031 | |
| 66–67 | 897 | |
| 68–69 | 814 | |
| 70–71 | 714 | |
| 72–73 | 709 | |
| 74–75 | 596 | |
| 76–77 | 512 | |
| 78–79 | 473 | |
| 80–81 | 412 | |
| 82–83 | 373 | |
| 84–85 | 358 | |
| 86–87 | 285 | |
| 88–89 | 273 | |
| 90–91 | 227 | |
| 92–93 | 208 | |
| 94–95 | 193 | |
| 96–97 | 153 | |
| 98–99 | 157 | |
| 100–101 | 148 | |
| 102–103 | 120 | |
| 104–105 | 113 | |
| 106–107 | 100 | |
| 108–109 | 86 | |
| 110–111 | 67 | |
| 112–113 | 71 | |
| 114–115 | 73 | |
| 116–117 | 64 | |
| 118–119 | 53 | |
| 120–121 | 60 | |
| 122–123 | 54 | 123 |
| 124–125 | 43 | |
| 126–127 | 38 | |
| 128–129 | 49 | |
| 130–131 | 26 | |
| 132–133 | 18 | |
| 134–135 | 23 | |
| 136–137 | 32 | |
| 138–139 | 32 | |
| 140–141 | 27 | |
| 142–143 | 19 | |
| 144–145 | 22 | |
| 146–147 | 12 | |
| 148–149 | 16 | |
| 150–151 | 14 | |
| 152–153 | 10 | |
| 154–155 | 13 | |
| 156–157 | 10 | |
| 158–159 | 7 | |
| 160–161 | 9 | |
| 162–163 | 13 | |
| 164–165 | 4 | |
| 166 | 4 | |
| 167+ | 98 |
John R. Speakman is affiliated with the University of Aberdeen in the United Kingdom. Their research primarily spans the field of Medicine, with a particular focus on Physiology, Public Health, Environmental and Occupational Health, Ecology, Evolution, Behavior and Systematics, and Molecular Biology.
The main topics explored in their work include:
Some of the scientist's recent papers are:
They have frequently published in the following venues:
Frequent co-authors of Speakman include:
In addition to articles, John R. Speakman has contributed to book publications, including a title published by Oxford University Press:
Throughout their career, Speakman has received multiple awards and honors:
John R. Speakman
Matthias H Tschöp;John R Speakman;John R Speakman;Jonathan R S Arch;Johan Auwerx
Kevin D. Hall;Steven B. Heymsfield;Joseph W. Kemnitz;Samuel Klein
John R Speakman
Alexandra M Johnstone;Sandra D Murison;Jackie S Duncan;Kellie A Rance
N V Dhurandhar;D Schoeller;A W Brown;S B Heymsfield
Colin Selman;Steven Lingard;Agharul I. Choudhury;Rachel L. Batterham
Marc Claret;Mark A. Smith;Rachel L. Batterham;Colin Selman
John R. Speakman;John R. Speakman;Darren A. Talbot;Colin Selman;Sam Snart
P. J. Butler;J. A. Green;I. L. Boyd;J. R. Speakman
John R. Speakman;Colin Selman
John R. Speakman;Elżbieta Król
S. Wanless;M. P. Harris;P. Redman;J. R. Speakman
Murray M. Humphries;Murray M. Humphries;Donald W. Thomas;John R. Speakman;John R. Speakman
Donald W. Thomas;Jacques Blondel;Philippe Perret;Marcel M. Lambrechts
John R. Speakman
Martyn L. Gorman;Michael G. Mills;Jacobus P. Raath;John R. Speakman
John Roger Speakman
John Roger Speakman;John Roger Speakman;Kellie A. Rance;Alexandra Johnstone
Colin Selman;Jonathan D. Blount;Daniel H. Nussey;John R. Speakman;John R. Speakman
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