Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 2.302 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 26
evolutionary biology
ecology
systematic biology
herpetolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,115
17,423
0.355
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* Total Citation Counts Rankings
Ranking Based On Selection: 27
Astrophysics
Cosmology
Data Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,024
17,944
0.382
* Total Citation Counts Rankings
Ranking Based On Selection: 28
Teacher Expectations Teacher Evaluations Youth Polic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,661
4,787
0.105
* Total Citation Counts Rankings
Ranking Based On Selection: 29
epidemiology
meta-analysis
evidence-based medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,652
7,939
0.174
* Total Citation Counts Rankings
Ranking Based On Selection: 30
ecosystem ecology
ecohydrology
forest ecology
global change
dryland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,450
18,923
0.416
* Total Citation Counts Rankings
Ranking Based On Selection: 31
medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,787
9,775
0.218
* Total Citation Counts Rankings
Ranking Based On Selection: 32
Genetics
Epigenetics
Genomics
Evolution
Chromati
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,658
7,347
0.165
* Total Citation Counts Rankings
Ranking Based On Selection: 33
Ecology
plant physiology
biogeochemistry
global change biolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,266
11,762
0.266
* Total Citation Counts Rankings
Ranking Based On Selection: 34
emotion
alexithymia
vagal tone
emotional awareness
sudden cardiac deat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,153
14,280
0.323
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* Total Citation Counts Rankings
Ranking Based On Selection: 35
Astronomy
Astrophysic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,414
21,754
0.513
* Total Citation Counts Rankings
Ranking Based On Selection: 36
badnaviruses
Bemisia tabaci cryptic species biology & evolution
biology & functional genomics of plant virus-insect vector in
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,012
13,936
0.340
* Total Citation Counts Rankings
Ranking Based On Selection: 37
Polyploidy
Hybridization
Speciation
Plant Evolutio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,843
4,619
0.113
* Total Citation Counts Rankings
Ranking Based On Selection: 38
Systems Analysis and Design
Collaboration Technology
Deception Detectio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,585
7,695
0.194
* Total Citation Counts Rankings
Ranking Based On Selection: 39
Drug Discovery
Biotechnology
Secondary DNA structure
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,985
8,545
0.219
* Total Citation Counts Rankings
Ranking Based On Selection: 40
Climate
radiocarbon
isotopes
graphen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,969
7,369
0.189
* Total Citation Counts Rankings
Ranking Based On Selection: 41
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,814
7,202
0.186
* Total Citation Counts Rankings
Ranking Based On Selection: 42
Astronomy
Astrophysic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,768
14,289
0.369
* Total Citation Counts Rankings
Ranking Based On Selection: 43
Neuroscience
Psychology
Cognitive Neuroscienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,229
17,762
0.465
* Total Citation Counts Rankings
Ranking Based On Selection: 44
sustainable ag
insect resistance to GM crop
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,209
9,952
0.260
* Total Citation Counts Rankings
Ranking Based On Selection: 45
cancer researc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,050
3,755
0.101
* Total Citation Counts Rankings
Ranking Based On Selection: 46
Forest Ecology
Disturbance Ecology
Fire Ecology
Dendrochronolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,949
10,622
0.287
* Total Citation Counts Rankings
Ranking Based On Selection: 47
Human-Computer Interaction
Collaboration technologies
Cybersecurity
Deception Detectio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,250
8,962
0.254
* Total Citation Counts Rankings
Ranking Based On Selection: 48
Astronomy
Educatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,546
8,278
0.240
* Total Citation Counts Rankings
Ranking Based On Selection: 49
Machine Learning
Network Science
Enterprise data management
Data Provenance
and Semantic Int
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,909
12,868
0.379
* Total Citation Counts Rankings
Ranking Based On Selection: 50
Software Engineering
Compilers
Programming Language
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,652
3,943
0.121
* Total Citation Counts Rankings
Rankings
11,095
5,231
26
Ranking Based On Selection: 26
John J Wiens
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,115
17,423
0.355
evolutionary biology
ecology
systematic biology
herpetolog
* Total Citation Counts Rankings
Rankings
11,891
5,609
27
Ranking Based On Selection: 27
Benjamin Weiner
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,024
17,944
0.382
* Total Citation Counts Rankings
Rankings
12,477
5,855
28
Ranking Based On Selection: 28
Thomas Good
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,661
4,787
0.105
Teacher Expectations Teacher Evaluations Youth Polic
* Total Citation Counts Rankings
Rankings
12,484
5,861
29
Ranking Based On Selection: 29
Diana Petitti
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,652
7,939
0.174
epidemiology
meta-analysis
evidence-based medicin
* Total Citation Counts Rankings
Rankings
12,578
5,906
30
Ranking Based On Selection: 30
David D Breshears
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,450
18,923
0.416
ecosystem ecology
ecohydrology
forest ecology
global change
dryland
* Total Citation Counts Rankings
Rankings
12,909
6,054
31
Ranking Based On Selection: 31
Michael D Dake
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,787
9,775
0.218
* Total Citation Counts Rankings
Rankings
12,979
6,092
32
Ranking Based On Selection: 32
Richard Jorgensen
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,658
7,347
0.165
Genetics
Epigenetics
Genomics
Evolution
Chromati
* Total Citation Counts Rankings
Rankings
13,174
6,187
33
Ranking Based On Selection: 33
Russell Monson
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,266
11,762
0.266
Ecology
plant physiology
biogeochemistry
global change biolog
* Total Citation Counts Rankings
Rankings
13,219
6,205
34
Ranking Based On Selection: 34
Richard David Lane
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,153
14,280
0.323
emotion
alexithymia
vagal tone
emotional awareness
sudden cardiac deat
* Total Citation Counts Rankings
Rankings
14,105
6,613
35
Ranking Based On Selection: 35
Buell Jannuzi
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,414
21,754
0.513
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Rankings
14,894
6,958
36
Ranking Based On Selection: 36
Judith Brown
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,012
13,936
0.340
badnaviruses
Bemisia tabaci cryptic species biology & evolution
biology & functional genomics of plant virus-insect vector in
* Total Citation Counts Rankings
Rankings
15,007
7,015
37
Ranking Based On Selection: 37
G Ledyard Stebbins
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,843
4,619
0.113
Polyploidy
Hybridization
Speciation
Plant Evolutio
* Total Citation Counts Rankings
Rankings
15,764
7,353
38
Ranking Based On Selection: 38
JF Nunamaker Jr
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,585
7,695
0.194
Systems Analysis and Design
Collaboration Technology
Deception Detectio
* Total Citation Counts Rankings
Rankings
16,141
7,525
39
Ranking Based On Selection: 39
Laurence Hurley
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,985
8,545
0.219
Drug Discovery
Biotechnology
Secondary DNA structure
* Total Citation Counts Rankings
Rankings
16,151
7,531
40
Ranking Based On Selection: 40
J Warren Beck
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,969
7,369
0.189
* Total Citation Counts Rankings
Rankings
16,248
7,583
41
Ranking Based On Selection: 41
Patrick Mantyh
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,814
7,202
0.186
* Total Citation Counts Rankings
Rankings
16,282
7,605
42
Ranking Based On Selection: 42
Dennis Zaritsky
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,768
14,289
0.369
* Total Citation Counts Rankings
Rankings
16,626
7,757
43
Ranking Based On Selection: 43
Jessica Andrews Hanna
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,229
17,762
0.465
Neuroscience
Psychology
Cognitive Neuroscienc
* Total Citation Counts Rankings
Rankings
16,642
7,768
44
Ranking Based On Selection: 44
Bruce Tabashnik
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,209
9,952
0.260
sustainable ag
insect resistance to GM crop
* Total Citation Counts Rankings
Rankings
17,487
8,124
45
Ranking Based On Selection: 45
Edward Gelmann
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,050
3,755
0.101
* Total Citation Counts Rankings
Rankings
17,575
8,163
46
Ranking Based On Selection: 46
Thomas W Swetnam
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,949
10,622
0.287
Forest Ecology
Disturbance Ecology
Fire Ecology
Dendrochronolog
* Total Citation Counts Rankings
Rankings
18,872
8,722
47
Ranking Based On Selection: 47
Joseph S Valacich
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,250
8,962
0.254
Human-Computer Interaction
Collaboration technologies
Cybersecurity
Deception Detectio
* Total Citation Counts Rankings
Rankings
19,472
8,983
48
Ranking Based On Selection: 48
Chris Impey
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,546
8,278
0.240
* Total Citation Counts Rankings
Rankings
20,002
9,207
49
Ranking Based On Selection: 49
Sudha Ram
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,909
12,868
0.379
Machine Learning
Network Science
Enterprise data management
Data Provenance
and Semantic Int
* Total Citation Counts Rankings
Rankings
21,231
9,741
50
Ranking Based On Selection: 50
Ravi Sethi
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,652
3,943
0.121
Software Engineering
Compilers
Programming Language