Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
8,237
Country Rank
3,957
Institution Rank : 4
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Hanqin Tian](https://cdn.adscientificindex.com/pictures/68/840297.jpg)
Earth System Science
Biogeochemical Cycles
Ecosystem Modeling
Climate & Sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,199
37,830
0.685
* Total Citation Counts Rankings
World Rank
31,432
Country Rank
14,311
Institution Rank : 13
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![David Held](/user/assets/images/profile/no-profile-photo.png)
entomology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,444
10,811
0.461
* Total Citation Counts Rankings
World Rank
40,631
Country Rank
18,069
Institution Rank : 19
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Luz De Bashan](https://cdn.adscientificindex.com/pictures/4e/855737.jpg)
Environmental biotechnology
soil microbiology
algal biotechnology
plant-bacteria interaction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,552
8,976
0.459
* Total Citation Counts Rankings
World Rank
59,102
Country Rank
25,272
Institution Rank : 31
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Kenneth M Halanych](https://cdn.adscientificindex.com/pictures/c9/828998.jpg)
Invertebrates
Marine genomics
Systematics
Antarctica
Deep Sea biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,801
5,763
0.389
* Total Citation Counts Rankings
World Rank
82,111
Country Rank
33,718
Institution Rank : 47
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Narendra K Singh](/user/assets/images/profile/no-profile-photo.png)
plant stress response
vaccines against poultry viruses
transformation of higher fungi
stress response in fungi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,405
3,633
0.319
* Total Citation Counts Rankings
World Rank
85,136
Country Rank
34,817
Institution Rank : 50
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Mark Liles](https://cdn.adscientificindex.com/pictures/95/858383.jpg)
Biology
Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,063
4,300
0.389
* Total Citation Counts Rankings
World Rank
95,278
Country Rank
38,363
Institution Rank : 58
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![F Stephen Dobson](https://cdn.adscientificindex.com/pictures/80/858385.jpg)
behavior
ecology
evolution
conservation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,060
3,054
0.304
* Total Citation Counts Rankings
World Rank
112,807
Country Rank
44,445
Institution Rank : 72
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Scott R Santos](https://cdn.adscientificindex.com/pictures/48/828634.jpg)
Anchialine Ecosystem
Biocomputing
Marine Ecology
Molecular Ecology
Symbiosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,666
3,775
0.436
* Total Citation Counts Rankings
World Rank
123,375
Country Rank
48,027
Institution Rank : 77
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Jack Feminella](https://cdn.adscientificindex.com/pictures/43/828633.jpg)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,998
2,502
0.313
* Total Citation Counts Rankings
World Rank
125,684
Country Rank
48,808
Institution Rank : 78
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Jason W Upton](https://cdn.adscientificindex.com/pictures/be/828636.jpg)
Host-pathogen interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,865
4,430
0.563
* Total Citation Counts Rankings
World Rank
138,136
Country Rank
52,879
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/638.png)
![United States](/flags/us.png)
![Gabriel C Costa](https://cdn.adscientificindex.com/pictures/43/828649.jpg)
Biogeography
Macroecology
Spatial Ecology
Conservation
Herpetology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,211
4,481
0.621
* Total Citation Counts Rankings
World Rank
142,026
Country Rank
54,144
Institution Rank : 84
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Alan E Wilson](https://cdn.adscientificindex.com/pictures/0b/841786.jpg)
community ecology
limnology
harmful algal blooms
drinking water
meta-analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,025
4,382
0.624
* Total Citation Counts Rankings
World Rank
144,639
Country Rank
54,955
Institution Rank : 86
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Robert S Boyd](https://cdn.adscientificindex.com/pictures/0e/828635.jpg)
Ecology of metal hyperaccumulation
Plant conservation
Plant-Animal interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,907
2,289
0.331
* Total Citation Counts Rankings
World Rank
151,826
Country Rank
57,280
Institution Rank : 93
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Graeme Lockaby](/user/assets/images/profile/no-profile-photo.png)
Wetlands
biogeochemistry
water quality
environmental health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,592
1,995
0.303
* Total Citation Counts Rankings
World Rank
185,823
Country Rank
67,951
Institution Rank : 121
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Katherine Buckley](https://cdn.adscientificindex.com/pictures/ed/828637.jpg)
Immunology
Evolution
Genomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,391
2,123
0.394
* Total Citation Counts Rankings
World Rank
199,489
Country Rank
72,114
Institution Rank : 136
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Daniel Warner](https://cdn.adscientificindex.com/pictures/b5/858426.jpg)
Evolutionary Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,008
2,446
0.488
* Total Citation Counts Rankings
World Rank
213,472
Country Rank
76,305
Institution Rank : 148
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Perry Lee Wood Jr](https://cdn.adscientificindex.com/pictures/1c/858447.jpg)
Conservation
Evolution
Herpetology
Southeast Asia
Systematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,668
2,902
0.622
* Total Citation Counts Rankings
World Rank
216,682
Country Rank
77,228
Institution Rank : 152
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Nanette Chadwick](https://cdn.adscientificindex.com/pictures/11/858425.jpg)
Coral reef ecology
cnidarian ecophysiology and behavior
symbioses
population dynamics
conservation biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,593
1,463
0.319
* Total Citation Counts Rankings
World Rank
217,481
Country Rank
77,496
Institution Rank : 153
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Brian Counterman](https://cdn.adscientificindex.com/pictures/14/828639.jpg)
evolution
development
genomics
speciation
adaptation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,576
2,463
0.538
* Total Citation Counts Rankings
World Rank
219,546
Country Rank
78,110
Institution Rank : 157
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Joanna Wysocka Diller](/user/assets/images/profile/no-profile-photo.png)
Plant Sciences
Genetics
Cell and Molecular Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,530
1,140
0.252
* Total Citation Counts Rankings
World Rank
221,507
Country Rank
78,677
Institution Rank : 160
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Michael Wooten](https://cdn.adscientificindex.com/pictures/95/828640.jpg)
Population Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,486
2,238
0.499
* Total Citation Counts Rankings
World Rank
223,933
Country Rank
79,381
Institution Rank : 164
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Geoff Williams](https://cdn.adscientificindex.com/pictures/82/858460.jpg)
ecology
parasitology
eco-toxicology
entomology
apiculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,432
2,792
0.630
* Total Citation Counts Rankings
World Rank
227,374
Country Rank
80,444
Institution Rank : 168
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Charles Savrda](https://cdn.adscientificindex.com/pictures/2d/858424.jpg)
Ichnology
sedimentology
stratigraphy
paleontology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,361
1,002
0.230
* Total Citation Counts Rankings
World Rank
232,370
Country Rank
81,912
Institution Rank : 172
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Heather Alexander](https://cdn.adscientificindex.com/pictures/81/858489.jpg)
ecology
fire
carbon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,259
3,291
0.773
* Total Citation Counts Rankings
World Rank
237,779
Country Rank
83,474
Institution Rank : 176
![](https://cdn.adscientificindex.com/logos/637.png)
![United States](/flags/us.png)
![Mary Mendonca](/user/assets/images/profile/no-profile-photo.png)
Stress Physiology
Ecoimmunology
Physiological Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,156
1,164
0.280
* Total Citation Counts Rankings
World Ranking
8,237
Country Ranking
3,957
Institution Ranking
4
Hanqin Tian
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,199
37,830
0.685
![](https://cdn.adscientificindex.com/logos/637.png)
Earth System Science
Biogeochemical Cycles
Ecosystem Modeling
Climate & Sustainability
* Total Citation Counts Rankings
World Ranking
31,432
Country Ranking
14,311
Institution Ranking
13
David Held
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,444
10,811
0.461
* Total Citation Counts Rankings
World Ranking
40,631
Country Ranking
18,069
Institution Ranking
19
Luz De Bashan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,552
8,976
0.459
![](https://cdn.adscientificindex.com/logos/637.png)
Environmental biotechnology
soil microbiology
algal biotechnology
plant-bacteria interaction
* Total Citation Counts Rankings
World Ranking
59,102
Country Ranking
25,272
Institution Ranking
31
Kenneth M Halanych
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,801
5,763
0.389
![](https://cdn.adscientificindex.com/logos/637.png)
Invertebrates
Marine genomics
Systematics
Antarctica
Deep Sea biology
* Total Citation Counts Rankings
World Ranking
82,111
Country Ranking
33,718
Institution Ranking
47
Narendra K Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,405
3,633
0.319
![](https://cdn.adscientificindex.com/logos/637.png)
plant stress response
vaccines against poultry viruses
transformation of higher fungi
stress response in fungi
* Total Citation Counts Rankings
World Ranking
85,136
Country Ranking
34,817
Institution Ranking
50
Mark Liles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,063
4,300
0.389
* Total Citation Counts Rankings
World Ranking
95,278
Country Ranking
38,363
Institution Ranking
58
F Stephen Dobson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,060
3,054
0.304
![](https://cdn.adscientificindex.com/logos/637.png)
behavior
ecology
evolution
conservation
* Total Citation Counts Rankings
World Ranking
112,807
Country Ranking
44,445
Institution Ranking
72
Scott R Santos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,666
3,775
0.436
![](https://cdn.adscientificindex.com/logos/637.png)
Anchialine Ecosystem
Biocomputing
Marine Ecology
Molecular Ecology
Symbiosis
* Total Citation Counts Rankings
World Ranking
123,375
Country Ranking
48,027
Institution Ranking
77
Jack Feminella
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,998
2,502
0.313
* Total Citation Counts Rankings
World Ranking
125,684
Country Ranking
48,808
Institution Ranking
78
Jason W Upton
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,865
4,430
0.563
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* Total Citation Counts Rankings
World Ranking
138,136
Country Ranking
52,879
Institution Ranking
1
Gabriel C Costa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,211
4,481
0.621
![](https://cdn.adscientificindex.com/logos/638.png)
Biogeography
Macroecology
Spatial Ecology
Conservation
Herpetology
* Total Citation Counts Rankings
World Ranking
142,026
Country Ranking
54,144
Institution Ranking
84
Alan E Wilson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,025
4,382
0.624
![](https://cdn.adscientificindex.com/logos/637.png)
community ecology
limnology
harmful algal blooms
drinking water
meta-analysis
* Total Citation Counts Rankings
World Ranking
144,639
Country Ranking
54,955
Institution Ranking
86
Robert S Boyd
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,907
2,289
0.331
![](https://cdn.adscientificindex.com/logos/637.png)
Ecology of metal hyperaccumulation
Plant conservation
Plant-Animal interactions
* Total Citation Counts Rankings
World Ranking
151,826
Country Ranking
57,280
Institution Ranking
93
Graeme Lockaby
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,592
1,995
0.303
![](https://cdn.adscientificindex.com/logos/637.png)
Wetlands
biogeochemistry
water quality
environmental health
* Total Citation Counts Rankings
World Ranking
185,823
Country Ranking
67,951
Institution Ranking
121
Katherine Buckley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,391
2,123
0.394
* Total Citation Counts Rankings
World Ranking
199,489
Country Ranking
72,114
Institution Ranking
136
Daniel Warner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,008
2,446
0.488
* Total Citation Counts Rankings
World Ranking
213,472
Country Ranking
76,305
Institution Ranking
148
Perry Lee Wood Jr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,668
2,902
0.622
![](https://cdn.adscientificindex.com/logos/637.png)
Conservation
Evolution
Herpetology
Southeast Asia
Systematics
* Total Citation Counts Rankings
World Ranking
216,682
Country Ranking
77,228
Institution Ranking
152
Nanette Chadwick
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,593
1,463
0.319
![](https://cdn.adscientificindex.com/logos/637.png)
Coral reef ecology
cnidarian ecophysiology and behavior
symbioses
population dynamics
conservation biology
* Total Citation Counts Rankings
World Ranking
217,481
Country Ranking
77,496
Institution Ranking
153
Brian Counterman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,576
2,463
0.538
![](https://cdn.adscientificindex.com/logos/637.png)
evolution
development
genomics
speciation
adaptation
* Total Citation Counts Rankings
World Ranking
219,546
Country Ranking
78,110
Institution Ranking
157
Joanna Wysocka Diller
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,530
1,140
0.252
![](https://cdn.adscientificindex.com/logos/637.png)
Plant Sciences
Genetics
Cell and Molecular Biology
* Total Citation Counts Rankings
World Ranking
221,507
Country Ranking
78,677
Institution Ranking
160
Michael Wooten
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,486
2,238
0.499
* Total Citation Counts Rankings
World Ranking
223,933
Country Ranking
79,381
Institution Ranking
164
Geoff Williams
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,432
2,792
0.630
![](https://cdn.adscientificindex.com/logos/637.png)
ecology
parasitology
eco-toxicology
entomology
apiculture
* Total Citation Counts Rankings
World Ranking
227,374
Country Ranking
80,444
Institution Ranking
168
Charles Savrda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,361
1,002
0.230
![](https://cdn.adscientificindex.com/logos/637.png)
Ichnology
sedimentology
stratigraphy
paleontology
* Total Citation Counts Rankings
World Ranking
232,370
Country Ranking
81,912
Institution Ranking
172
Heather Alexander
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,259
3,291
0.773
* Total Citation Counts Rankings
World Ranking
237,779
Country Ranking
83,474
Institution Ranking
176
Mary Mendonca
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,156
1,164
0.280
![](https://cdn.adscientificindex.com/logos/637.png)
Stress Physiology
Ecoimmunology
Physiological Ecology