Citation Rankings
Highly Cited Researchers
Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 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.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
forest protection
mycology
entomology
biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,656
36,489
0.458
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Macroecomomics
forecasting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,589
29,221
0.777
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
point-of-care
diagnostics
testing
scoping review
implementation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,497
26,089
0.949
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Microbial ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,687
12,271
0.478
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Medicinal Plants
Ethnobotany
Phytochemistry
Phytomedicine
Ethnopharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,223
11,035
0.456
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Virology
emerging diseases
Respiratory viruses
Arboviruses
Influenza
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,278
10,949
0.673
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Climate Change
Forestry
Carbon
Drylands
Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,374
10,879
0.664
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Maternal mortality
perinatal mortality
stillbirths
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,241
10,050
0.473
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
forest pathology and entomology
forest health
invasion biology
mycology
molecular ecology and evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,753
9,154
0.488
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,860
8,912
0.374
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Cancer cellular biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,342
8,499
0.490
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Convective Nanofluids
Computational Heat Transfer
Multiphase
Energy Optimization
Solar-Thermal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,073
8,425
0.929
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
mole-rats
Reproduction
physiology...
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,505
8,377
0.453
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
ethnoveterinary medicine
biological activity
toxicity
medicinal plants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,731
8,166
0.641
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Internet-of-Things
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,477
7,164
0.463
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Career (construction) counselling
narrative career counselling
life designing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,468
7,015
0.485
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Audiology
Telehealth
mHealth
Tele-Audiology
Telemedicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,467
6,908
0.660
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
Conservation biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,719
6,333
0.591
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Taxonomy
Systematics
Penicillium
Aspergillus
Talaromyces
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,839
6,197
0.791
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
pollination
physiology
nectar-feeding birds
honey bees
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,471
6,162
0.457
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Fungi: Genetics
Evolutionary Genomics
Systematics
Population
Mating sytems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,877
6,152
0.623
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Fresh Produce Safety and Quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,062
5,801
0.481
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
gender and diversity
postcolonial
management in Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,311
5,786
0.435
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Sustainability
Wellbeing
Governance
Political Economy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,998
5,728
0.716
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Nano-Science
Materials Science
Energy Storage
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,955
5,686
0.715
* Last 6 Years Citation Counts Rankings
Rankings
5,039
22
1
Ranking Based On Selection: 1
Mike Wingfield
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,656
36,489
0.458
forest protection
mycology
entomology
biotechnology
* Last 6 Years Citation Counts Rankings
Rankings
7,139
27
2
Ranking Based On Selection: 2
Rangan Gupta
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,589
29,221
0.777
* Last 6 Years Citation Counts Rankings
Rankings
8,525
33
3
Ranking Based On Selection: 3
Tivani Phosa Mashamba-Thompson
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,497
26,089
0.949
point-of-care
diagnostics
testing
scoping review
implementation
* Last 6 Years Citation Counts Rankings
Rankings
26,808
103
4
Ranking Based On Selection: 4
Don A Cowan
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,687
12,271
0.478
* Last 6 Years Citation Counts Rankings
Rankings
31,480
130
5
Ranking Based On Selection: 5
Jacobus Eloff
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,223
11,035
0.456
Medicinal Plants
Ethnobotany
Phytochemistry
Phytomedicine
Ethnopharmacology
* Last 6 Years Citation Counts Rankings
Rankings
31,862
131
6
Ranking Based On Selection: 6
Marietjie Venter
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,278
10,949
0.673
Virology
emerging diseases
Respiratory viruses
Arboviruses
Influenza
* Last 6 Years Citation Counts Rankings
Rankings
32,217
133
7
Ranking Based On Selection: 7
Cheikh Mbow
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,374
10,879
0.664
Climate Change
Forestry
Carbon
Drylands
Africa
* Last 6 Years Citation Counts Rankings
Rankings
36,110
145
8
Ranking Based On Selection: 8
Robert Pattinson
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,241
10,050
0.473
Maternal mortality
perinatal mortality
stillbirths
* Last 6 Years Citation Counts Rankings
Rankings
41,433
166
9
Ranking Based On Selection: 9
Bernard Slippers
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,753
9,154
0.488
forest pathology and entomology
forest health
invasion biology
mycology
molecular ecology and evolution
* Last 6 Years Citation Counts Rankings
Rankings
43,094
180
10
Ranking Based On Selection: 10
Brenda Wingfield
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,860
8,912
0.374
* Last 6 Years Citation Counts Rankings
Rankings
46,132
188
11
Ranking Based On Selection: 11
Annie Joubert
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,342
8,499
0.490
* Last 6 Years Citation Counts Rankings
Rankings
46,729
191
12
Ranking Based On Selection: 12
Mohsen Sharifpur
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,073
8,425
0.929
Convective Nanofluids
Computational Heat Transfer
Multiphase
Energy Optimization
Solar-Thermal
* Last 6 Years Citation Counts Rankings
Rankings
47,076
193
13
Ranking Based On Selection: 13
Nigel C Bennett
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,505
8,377
0.453
mole-rats
Reproduction
physiology...
* Last 6 Years Citation Counts Rankings
Rankings
48,841
201
14
Ranking Based On Selection: 14
Lyndy Mcgaw
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,731
8,166
0.641
ethnoveterinary medicine
biological activity
toxicity
medicinal plants
* Last 6 Years Citation Counts Rankings
Rankings
58,669
236
15
Ranking Based On Selection: 15
Gerhard Hancke
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,477
7,164
0.463
* Last 6 Years Citation Counts Rankings
Rankings
60,417
241
16
Ranking Based On Selection: 16
Kobus Maree
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,468
7,015
0.485
Career (construction) counselling
narrative career counselling
life designing
* Last 6 Years Citation Counts Rankings
Rankings
61,726
251
17
Ranking Based On Selection: 17
De Wet Swanepoel
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,467
6,908
0.660
Audiology
Telehealth
mHealth
Tele-Audiology
Telemedicine
* Last 6 Years Citation Counts Rankings
Rankings
69,340
278
18
Ranking Based On Selection: 18
Peter Lindsey
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,719
6,333
0.591
* Last 6 Years Citation Counts Rankings
Rankings
71,406
286
19
Ranking Based On Selection: 19
Cobus Visagie
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,839
6,197
0.791
Taxonomy
Systematics
Penicillium
Aspergillus
Talaromyces
* Last 6 Years Citation Counts Rankings
Rankings
71,944
288
20
Ranking Based On Selection: 20
Susan W. Nicolson
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,471
6,162
0.457
pollination
physiology
nectar-feeding birds
honey bees
* Last 6 Years Citation Counts Rankings
Rankings
72,093
289
21
Ranking Based On Selection: 21
Tuan A. Duong
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,877
6,152
0.623
Fungi: Genetics
Evolutionary Genomics
Systematics
Population
Mating sytems
* Last 6 Years Citation Counts Rankings
Rankings
77,845
314
22
Ranking Based On Selection: 22
Lise Korsten
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,062
5,801
0.481
Fresh Produce Safety and Quality
* Last 6 Years Citation Counts Rankings
Rankings
78,118
315
23
Ranking Based On Selection: 23
Stella M Nkomo
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,311
5,786
0.435
gender and diversity
postcolonial
management in Africa
* Last 6 Years Citation Counts Rankings
Rankings
79,164
319
24
Ranking Based On Selection: 24
Lorenzo Fioramonti
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,998
5,728
0.716
Sustainability
Wellbeing
Governance
Political Economy
* Last 6 Years Citation Counts Rankings
Rankings
79,922
321
25
Ranking Based On Selection: 25
Ncholu Manyala
University of Pretoria
Pretoria, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,955
5,686
0.715
Nano-Science
Materials Science
Energy Storage