| Discipline name | D-Index | World Ranking | Current World Ranking | National Ranking | Current National Ranking | Publications | Citations |
|---|---|---|---|---|---|---|---|
| Animal Science and Veterinary | 28 | 2686 | 2440 | 43 | 42 | 108 | 2982 |
The chart shows the history of publications by R. P. Littlejohn between 1975 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. R. P. Littlejohn published across 47 years, from 1975 to 2021, averaging 3.5 papers a year. Output peaked at 11 publications in 1992. 1 of the 163 publications appeared in the last two years.
163 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1975 | 1 |
| 1976 | 0 |
| 1977 | 1 |
| 1978 | 0 |
| 1979 | 0 |
| 1980 | 1 |
| 1981 | 1 |
| 1982 | 0 |
| 1983 | 0 |
| 1984 | 0 |
| 1985 | 1 |
| 1986 | 0 |
| 1987 | 0 |
| 1988 | 7 |
| 1989 | 6 |
| 1990 | 2 |
| 1991 | 4 |
| 1992 | 11 |
| 1993 | 4 |
| 1994 | 9 |
| 1995 | 6 |
| 1996 | 8 |
| 1997 | 8 |
| 1998 | 11 |
| 1999 | 8 |
| 2000 | 7 |
| 2001 | 5 |
| 2002 | 6 |
| 2003 | 7 |
| 2004 | 5 |
| 2005 | 5 |
| 2006 | 7 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 6 |
| 2010 | 6 |
| 2011 | 11 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 0 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 1 |
| 2020 | 0 |
| 2021 | 1 |
| Total | 163 |
The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where R. P. Littlejohn sits on this spectrum.
This scientist: 108 publications — 32nd percentile
32% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 442 publications or more.
| Publications | Scientists | This scientist |
|---|---|---|
| 29–33 | 1 | |
| 34–38 | 6 | |
| 39–43 | 17 | |
| 44–48 | 23 | |
| 49–53 | 28 | |
| 54–58 | 44 | |
| 59–63 | 66 | |
| 64–68 | 75 | |
| 69–73 | 71 | |
| 74–78 | 85 | |
| 79–83 | 108 | |
| 84–88 | 105 | |
| 89–93 | 84 | |
| 94–98 | 103 | |
| 99–103 | 97 | |
| 104–108 | 95 | 108 |
| 109–113 | 89 | |
| 114–118 | 88 | |
| 119–123 | 109 | |
| 124–128 | 93 | |
| 129–133 | 89 | |
| 134–138 | 95 | |
| 139–143 | 92 | |
| 144–148 | 80 | |
| 149–153 | 75 | |
| 154–158 | 74 | |
| 159–163 | 67 | |
| 164–168 | 53 | |
| 169–173 | 62 | |
| 174–178 | 63 | |
| 179–183 | 50 | |
| 184–188 | 55 | |
| 189–193 | 50 | |
| 194–198 | 27 | |
| 199–203 | 44 | |
| 204–208 | 31 | |
| 209–213 | 28 | |
| 214–218 | 38 | |
| 219–223 | 33 | |
| 224–228 | 36 | |
| 229–233 | 29 | |
| 234–238 | 35 | |
| 239–243 | 23 | |
| 244–248 | 24 | |
| 249–253 | 29 | |
| 254–258 | 28 | |
| 259–263 | 21 | |
| 264–268 | 25 | |
| 269–273 | 11 | |
| 274–278 | 18 | |
| 279–283 | 13 | |
| 284–288 | 18 | |
| 289–293 | 10 | |
| 294–298 | 12 | |
| 299–303 | 11 | |
| 304–308 | 15 | |
| 309–313 | 14 | |
| 314–318 | 14 | |
| 319–323 | 8 | |
| 324–328 | 8 | |
| 329–333 | 13 | |
| 334–338 | 14 | |
| 339–343 | 13 | |
| 344–348 | 10 | |
| 349–353 | 11 | |
| 354–358 | 5 | |
| 359–363 | 8 | |
| 364–368 | 8 | |
| 369–373 | 6 | |
| 374–378 | 7 | |
| 379–383 | 8 | |
| 384–388 | 3 | |
| 389–393 | 4 | |
| 394–398 | 5 | |
| 399–403 | 8 | |
| 404–408 | 5 | |
| 409–413 | 4 | |
| 414–418 | 3 | |
| 419–423 | 8 | |
| 424–428 | 5 | |
| 429–433 | 3 | |
| 434–438 | 5 | |
| 439–441 | 5 | |
| 442+ | 99 |
The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where R. P. Littlejohn sits on this spectrum.
This scientist: 28 D-Index — 16th percentile
16% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 77 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 20 | 5 | |
| 21 | 22 | |
| 22 | 31 | |
| 23 | 44 | |
| 24 | 53 | |
| 25 | 66 | |
| 26 | 80 | |
| 27 | 101 | |
| 28 | 106 | 28 |
| 29 | 116 | |
| 30 | 154 | |
| 31 | 158 | |
| 32 | 143 | |
| 33 | 137 | |
| 34 | 126 | |
| 35 | 134 | |
| 36 | 112 | |
| 37 | 115 | |
| 38 | 105 | |
| 39 | 111 | |
| 40 | 107 | |
| 41 | 87 | |
| 42 | 74 | |
| 43 | 62 | |
| 44 | 61 | |
| 45 | 41 | |
| 46 | 51 | |
| 47 | 43 | |
| 48 | 28 | |
| 49 | 47 | |
| 50 | 40 | |
| 51 | 34 | |
| 52 | 33 | |
| 53 | 43 | |
| 54 | 16 | |
| 55 | 32 | |
| 56 | 21 | |
| 57 | 18 | |
| 58 | 28 | |
| 59 | 33 | |
| 60 | 17 | |
| 61 | 21 | |
| 62 | 18 | |
| 63 | 21 | |
| 64 | 9 | |
| 65 | 20 | |
| 66 | 11 | |
| 67 | 16 | |
| 68 | 12 | |
| 69 | 17 | |
| 70 | 13 | |
| 71 | 15 | |
| 72 | 11 | |
| 73 | 11 | |
| 74 | 14 | |
| 75 | 5 | |
| 76 | 6 | |
| 77+ | 100 |
P.E. Kendall;P.P. Nielsen;J.R. Webster;G.A. Verkerk
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E Wiklund;J.M Stevenson-Barry;S.J Duncan;R.P Littlejohn
Eva Wiklund;Eva Wiklund;Timothy R Manley;Roger P Littlejohn;Joanne M Stevenson-Barry
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J.C Pollard;R.P Littlejohn;G.W Asher;A.J.T Pearse
Geoffrey W Asher;Robert C Mulley;Karen T O'Neill;Ian C Scott
Eva Wiklund;Eva Wiklund;Sabine Sampels;Timothy R Manley;Jana Pickova
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Unknown
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I.C. Scott;G.W. Asher;J.A. Archer;R.P. Littlejohn
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