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D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Animal Science and Veterinary 48 687 221 163 10382

James E. Keirans publications per year

The chart shows the history of publications by James E. Keirans between 1970 and 2023, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. James E. Keirans published across 54 years, from 1970 to 2023, averaging 3.1 papers a year. Output peaked at 15 publications in 2000. 2 of the 169 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1970 to 2023. Vertical axis: number of publications, 0 to 15. Peak 15 publications in 2000. 1970: 4 publications 1971: 4 publications 1972: 2 publications 1973: 8 publications 1974: 1 publication 1975: 7 publications 1976: 7 publications 1977: 6 publications 1978: 2 publications 1979: 6 publications 1980: 4 publications 1981: 2 publications 1982: 1 publication 1983: 4 publications 1984: 4 publications 1985: 3 publications 1986: 2 publications 1987: 6 publications 1988: 2 publications 1989: 3 publications 1990: 2 publications 1991: 1 publication 1992: 3 publications 1993: 8 publications 1994: 3 publications 1995: 2 publications 1996: 9 publications 1997: 4 publications 1998: 2 publications 1999: 1 publication 2000: 15 publications 2001: 3 publications 2002: 5 publications 2003: 10 publications 2004: 6 publications 2005: 6 publications 2006: 2 publications 2007: 2 publications 2008: 1 publication 2009: 2 publications 2010: 0 publications 2011: 0 publications 2012: 0 publications 2013: 1 publication 2014: 0 publications 2015: 0 publications 2016: 1 publication 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 0 publications 2021: 0 publications 2022: 0 publications 2023: 2 publications
1970 2023

169 publications in total across all disciplines

View publications per year as a table
James E. Keirans: publications per year, 1970 to 2023
Year Publications
1970 4
1971 4
1972 2
1973 8
1974 1
1975 7
1976 7
1977 6
1978 2
1979 6
1980 4
1981 2
1982 1
1983 4
1984 4
1985 3
1986 2
1987 6
1988 2
1989 3
1990 2
1991 1
1992 3
1993 8
1994 3
1995 2
1996 9
1997 4
1998 2
1999 1
2000 15
2001 3
2002 5
2003 10
2004 6
2005 6
2006 2
2007 2
2008 1
2009 2
2010 0
2011 0
2012 0
2013 1
2014 0
2015 0
2016 1
2017 0
2018 0
2019 0
2020 0
2021 0
2022 0
2023 2
Total 169
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James E. Keirans publication distribution in Animal Science and Veterinary in 2026

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 James E. Keirans sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 84 bars. Horizontal axis: publications, 29–33 to 442+. Vertical axis: number of scientists, 0 to 109. Most scientists, 109, have 119–123 publications. The last bar groups every scientist with 442 publications or more. The highlighted bar, 159–163 publications, is where this scientist sits. 29–33 publications: 1 scientist 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29–33 publications 442+

This scientist: 163 publications — 62nd percentile

62% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

View publications distribution as a table
Number of Animal Science and Veterinary scientists by publication count, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
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
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 67 163
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
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James E. Keirans D-index placement in Animal Science and Veterinary in 2026

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 James E. Keirans sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 58 bars. Horizontal axis: D-Index, 20 to 77+. Vertical axis: number of scientists, 0 to 158. Most scientists, 158, have 31 D-Index. The last bar groups every scientist with 77 D-Index or more. The highlighted bar, 48 D-Index, is where this scientist sits. 20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 48 D-Index — 78th percentile

78% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

View D-Index distribution as a table
Number of Animal Science and Veterinary scientists by D-index, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
D-Index Scientists This scientist
20 5
21 22
22 31
23 44
24 53
25 66
26 80
27 101
28 106
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 48
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
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Overview

James E. Keirans was affiliated with Georgia Southern University in the United States. The academic career involved contributions to the collection and identification of natural history specimens.

The scientist's recent publications focused on documenting natural history specimens. Two papers were published in the repository Zenodo, operated by the CERN European Organization for Nuclear Research, in the years 2023 and 2025. The titles of these papers are:

  • Natural history specimens collected and/or identified and deposited., 2023, Zenodo (CERN European Organization for Nuclear Research)
  • Natural history specimens collected and/or identified and deposited., 2025, Zenodo (CERN European Organization for Nuclear Research)

Publication activity concentrated exclusively within the Zenodo platform, with two total outputs in that venue. No frequent co-authors were identified in the available records.

There are no records of book publications or awards connected to this scientist.

The data does not provide specific details on the main fields or subfields of study, nor on particular scientific topics covered, aside from the general focus on natural history specimen collection and identification.

Best Publications

  • The Genus Rhipicephalus (Acari, Ixodidae): A Guide to the Brown Ticks of the World

    Jane B. Walker;James E. Keirans;Ivan G. Horak

  • ANALYSIS OF THE SYSTEMATIC RELATIONSHIPS AMONG TICKS OF THE GENERA RHIPICEPHALUS AND BOOPHILUS (ACARI: IXODIDAE) BASED ON MITOCHONDRIAL 12S RIBOSOMAL DNA GENE SEQUENCES AND MORPHOLOGICAL CHARACTERS

    Lorenza Beati;James E. Keirans

  • Pictorial Key to the Adults of Hard Ticks, Family Ixodidae (Ixodida: Ixodoidea), East of the Mississippi River

    James E. Keirans;Taina R. Litwak

  • Evolution of Ticks

    J. S. H. Klompen;W. C. Black;J. E. Keirans;J. H. Oliver

  • The Argasidae, Ixodidae and Nuttalliellidae (Acari: Ixodida): A World List of Valid Tick Names

    Ivan G. Horak;Jean-Louis Camicas;James E. Keirans

  • Illustrated key to nymphs of the tick genus Amblyomma (Acari: Ixodidae) found in the United States.

    James E. Keirans;Lance A. Durden

  • Ixodes (Ixodes) scapularis (Acari:Ixodidae): redescription of all active stages, distribution, hosts, geographical variation, and medical and veterinary importance.

    J. E. Keirans;H. J. Hutcheson;H. J. Hutcheson;L. A. Durden;J. S. H. Klompen

  • Nymphs of the genus Ixodes (Acari: Ixodidae) of the United States: taxonomy, identification key, distribution, hosts, and medical/veterinary importance.

    L. A. Durden;J. E. Keirans

  • Phylogenetic Relationships among Tick Subfamilies (Ixodida: Ixodidae: Argasidae) Based on the 18S Nuclear rDNA Gene

    William C. Black;J.S.H. Klompen;James E. Keirans

  • Amblyomma aureolatum (Pallas, 1772) and Amblyomma ovale Koch, 1844 (Acari: Ixodidae): hosts, distribution and 16S rDNA sequences.

    A.A. Guglielmone;A. Estrada-Peña;A.J. Mangold;D.M. Barros-Battesti

  • Systematics and Biogeography of Hard Ticks, a Total Evidence Approach

    J.S.H. Klompen;William C. Black;James E. Keirans;Douglas E. Norris;Douglas E. Norris

  • Molecular phylogenetic analyses indicate that the Ixodes ricinus complex is a paraphyletic group.

    Guang Xu;Quentin Q. Fang;James E. Keirans;Lance A. Durden

  • Invasion: Exotic Ticks (Acari: Argasidae, Ixodidae) Imported into the United States. A Review and New Records

    James E. Keirans;Lance A. Durden

  • Systematics of the Ixodida (Argasidae, Ixodidae, Nuttalliellidae): An Overview and Some Problems

    J. E. Keirans;J. E. Keirans

  • First records of Amblyomma americanum, Ixodes (Ixodes) dentatus, and Ixodes (Ceratixodes) uriae (Acari: Ixodidae) from Maine.

    James E. Keirans;Eleanor H. Lacombe

  • Ticks (Acari: Ixodidae) Associated with Wild Animals in the Pantanal Region of Brazil

    Marcelo De Campos Pereira;Matias Pablo Juan SzabÓ;Gervasio Henrique Bechara;Eliana Reiko Matushima

  • Distribution, Seasonality, and Hosts of the Rocky Mountain Wood Tick in the United States

    Angela M. James;Jerome E. Freier;James E. Keirans;Lance A. Durden

  • Tick-borne relapsing fever caused by Borrelia hermsii, Montana.

    Tom G. Schwan;Paul F. Policastro;Zachary Miller;Robert L. Thompson

  • Mitochondrial Sequence Variation in Carios capensis (Neumann), a Parasite of Seabirds, Collected on Torishima Island in Japan

    Y. Ushijima;J. H. Oliver;J. H. Oliver;J. E. Keirans;J. E. Keirans;M. Tsurumi

  • Ectoparasites and classification

    C. E. Hopla;Lance A. Durden;James E. Keirans

  • Host–Parasite Coextinction and the Plight of Tick Conservation

    Lance A. Durden;James E. Keirans

  • Amblyomma latepunctatum, a valid tick species (Acari: Ixodidae) long misidentified with both amblyomma incisum and Amblyomma scalpturatum.

    Marcelo B. Labruna;James E. Keirans;Luis Marcelo A. Camargo;Alberto F. Ribeiro

Frequent Co-Authors

Lance A. Durden
Lance A. Durden Georgia Southern University
James H. Oliver
James H. Oliver Georgia Southern University
José M. Venzal
José M. Venzal University of the Republic
Alberto A. Guglielmone
Alberto A. Guglielmone National Agricultural Technology Institute
Ivan Gerard Horak
Ivan Gerard Horak University of Pretoria
Marcelo B. Labruna
Marcelo B. Labruna Universidade de São Paulo
William C. Black
William C. Black Colorado State University
José Maurício Barbanti Duarte
José Maurício Barbanti Duarte Sao Paulo State University
Matias Pablo Juan Szabó
Matias Pablo Juan Szabó Federal University of Uberlândia

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