Citation Rankings
Highly Cited Researchers
Smithsonian Institution Highly Cited Researchers Citation Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Ecology
Tropical Forests
Plant Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,381
26,698
0.435
* Total Citation Counts Rankings
Ranking Based On Selection :2
Marine Biology
Marine Ecology
Biodiversity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,068
22,767
0.455
* Total Citation Counts Rankings
Ranking Based On Selection :3
Coral Reefs
Biodiversity
Ocean Acidification
Alpheus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,594
17,944
0.385
* Total Citation Counts Rankings
Ranking Based On Selection :4
Forensic anthropology
physical anthropology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,238
9,149
0.207
* Total Citation Counts Rankings
Ranking Based On Selection :5
Botany
Evolutionary Biology
Ecology
Conservation
Phylogenetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,692
13,669
0.383
* Total Citation Counts Rankings
Ranking Based On Selection :6
marine biology
chemical ecology
marine natural products
coral reefs
cyanobacteria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,512
10,538
0.345
* Total Citation Counts Rankings
Ranking Based On Selection :7
Systematic Zoology
Mammalogy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,175
8,492
0.291
* Total Citation Counts Rankings
Ranking Based On Selection :8
community ecology
tropical forests
ecosystem ecology
theoretical ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,740
12,802
0.445
* Total Citation Counts Rankings
Ranking Based On Selection :9
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,652
15,140
0.528
* Total Citation Counts Rankings
Ranking Based On Selection :10
Taphonomy
paleoecology
vertebrate evolution
sedimentology
human evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,145
7,996
0.284
* Total Citation Counts Rankings
Ranking Based On Selection :11
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,941
12,389
0.443
* Total Citation Counts Rankings
Ranking Based On Selection :12
Invasion Biology
Marine Ecology
Biogeography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,843
10,037
0.388
* Total Citation Counts Rankings
Ranking Based On Selection :13
Systematics
Evolution
Behavior
Biodiversity
Arachnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,248
7,577
0.312
* Total Citation Counts Rankings
Ranking Based On Selection :14
Systematic Biology
Evolutionary Biology
Vertebrate Biology
Herpetology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,862
6,957
0.292
* Total Citation Counts Rankings
Ranking Based On Selection :15
archaeology
archaeobotany
paleoecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,539
8,160
0.347
* Total Citation Counts Rankings
Ranking Based On Selection :16
Coleoptera Systematics
Biodiversity
Conservation Biology
Biogeography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,462
8,538
0.364
* Total Citation Counts Rankings
Ranking Based On Selection :17
climate change
species interactions
fragmentation
natural history
ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,714
11,086
0.488
* Total Citation Counts Rankings
Ranking Based On Selection :18
Conservation genetics
Conservation biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,113
6,628
0.300
* Total Citation Counts Rankings
Ranking Based On Selection :19
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,929
9,056
0.413
* Total Citation Counts Rankings
Ranking Based On Selection :20
Reproductive Physiology
Elephant Biology
Animal Welfare
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,376
7,924
0.371
* Total Citation Counts Rankings
Ranking Based On Selection :21
Biodiversity
Evolution
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,131
5,169
0.245
* Total Citation Counts Rankings
Ranking Based On Selection :22
Anthropology
Biology
Prehispanic Archaeology
Genetic
History
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,940
6,413
0.306
* Total Citation Counts Rankings
Ranking Based On Selection :23
tropical biology
bees
pollination
pollen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,809
6,568
0.316
* Total Citation Counts Rankings
Ranking Based On Selection :24
paleontology
paleoclimatology
paleobiology
paleobotany
paleoecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,515
8,651
0.422
* Total Citation Counts Rankings
Ranking Based On Selection :25
Cultural anthropology
Museum studies
Ethnobiology
Asia
Cultural History
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,956
6,263
0.314
* Total Citation Counts Rankings
Rankings
7,205
3,422
1
Ranking Based On Selection: 1
S Joseph Wright
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,381
26,698
0.435
Ecology
Tropical Forests
Plant Ecology
* Total Citation Counts Rankings
Rankings
10,003
4,766
2
Ranking Based On Selection: 2
Emmett Duffy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,068
22,767
0.455
Marine Biology
Marine Ecology
Biodiversity
* Total Citation Counts Rankings
Rankings
11,156
5,289
3
Ranking Based On Selection: 3
Nancy Knowlton
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,594
17,944
0.385
Coral Reefs
Biodiversity
Ocean Acidification
Alpheus
* Total Citation Counts Rankings
Rankings
12,134
5,763
4
Ranking Based On Selection: 4
Douglas H Ubelaker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,238
9,149
0.207
Forensic anthropology
physical anthropology
* Total Citation Counts Rankings
Rankings
17,096
8,035
5
Ranking Based On Selection: 5
W John Kress
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,692
13,669
0.383
Botany
Evolutionary Biology
Ecology
Conservation
Phylogenetics
* Total Citation Counts Rankings
Rankings
21,768
10,064
6
Ranking Based On Selection: 6
Valerie J Paul
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,512
10,538
0.345
marine biology
chemical ecology
marine natural products
coral reefs
cyanobacteria
* Total Citation Counts Rankings
Rankings
23,429
10,831
7
Ranking Based On Selection: 7
Don E Wilson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,175
8,492
0.291
* Total Citation Counts Rankings
Rankings
23,969
11,045
8
Ranking Based On Selection: 8
Helene C Muller-Landau
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,740
12,802
0.445
community ecology
tropical forests
ecosystem ecology
theoretical ecology
* Total Citation Counts Rankings
Rankings
24,074
11,087
9
Ranking Based On Selection: 9
Sean R Connolly
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,652
15,140
0.528
* Total Citation Counts Rankings
Rankings
24,722
11,384
10
Ranking Based On Selection: 10
Anna K Behrensmeyer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,145
7,996
0.284
Taphonomy
paleoecology
vertebrate evolution
sedimentology
human evolution
* Total Citation Counts Rankings
Rankings
24,991
11,498
11
Ranking Based On Selection: 11
Warren Johnson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,941
12,389
0.443
* Total Citation Counts Rankings
Rankings
28,084
12,824
12
Ranking Based On Selection: 12
Greg Ruiz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,843
10,037
0.388
Invasion Biology
Marine Ecology
Biogeography
* Total Citation Counts Rankings
Rankings
30,917
14,047
13
Ranking Based On Selection: 13
Jonathan A Coddington
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,248
7,577
0.312
Systematics
Evolution
Behavior
Biodiversity
Arachnology
* Total Citation Counts Rankings
Rankings
31,625
14,329
14
Ranking Based On Selection: 14
Kevin de Queiroz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,862
6,957
0.292
Systematic Biology
Evolutionary Biology
Vertebrate Biology
Herpetology
* Total Citation Counts Rankings
Rankings
32,242
14,583
15
Ranking Based On Selection: 15
Dolores Piperno
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,539
8,160
0.347
* Total Citation Counts Rankings
Rankings
32,407
14,640
16
Ranking Based On Selection: 16
Terry L Erwin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,462
8,538
0.364
Coleoptera Systematics
Biodiversity
Conservation Biology
Biogeography
* Total Citation Counts Rankings
Rankings
33,877
15,261
17
Ranking Based On Selection: 17
Joshua Tewksbury
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,714
11,086
0.488
climate change
species interactions
fragmentation
natural history
ecology
* Total Citation Counts Rankings
Rankings
35,209
15,805
18
Ranking Based On Selection: 18
Jonathan D Ballou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,113
6,628
0.300
Conservation genetics
Conservation biology
* Total Citation Counts Rankings
Rankings
35,620
15,975
19
Ranking Based On Selection: 19
John Grant
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,929
9,056
0.413
* Total Citation Counts Rankings
Rankings
36,914
16,495
20
Ranking Based On Selection: 20
Janine L Brown
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,376
7,924
0.371
Reproductive Physiology
Elephant Biology
Animal Welfare
* Total Citation Counts Rankings
Rankings
37,544
16,783
21
Ranking Based On Selection: 21
Ian Owens
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,131
5,169
0.245
Biodiversity
Evolution
Ecology
* Total Citation Counts Rankings
Rankings
38,039
16,990
22
Ranking Based On Selection: 22
Richard Cooke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,940
6,413
0.306
Anthropology
Biology
Prehispanic Archaeology
Genetic
History
* Total Citation Counts Rankings
Rankings
38,367
17,109
23
Ranking Based On Selection: 23
David Roubik
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,809
6,568
0.316
tropical biology
bees
pollination
pollen
* Total Citation Counts Rankings
Rankings
39,170
17,426
24
Ranking Based On Selection: 24
Scott L Wing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,515
8,651
0.422
paleontology
paleoclimatology
paleobiology
paleobotany
paleoecology
* Total Citation Counts Rankings
Rankings
40,689
18,008
25
Ranking Based On Selection: 25
Taylor, Paul Michael
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,956
6,263
0.314
Cultural anthropology
Museum studies
Ethnobiology
Asia
Cultural History