Citation Rankings
Highly Cited Researchers
Nelson Mandela University 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
Plant diversity and evolution
palaeovegetation science
conservation science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,762
12,330
0.269
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Conservation biology
megaherbivore ecology
predator prey interactions
ecological history
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,411
7,424
0.452
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
nonwoven
textiles
fibre reinforced compoistes
technical textiles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,562
3,917
0.518
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
marine top predators - behavioural ecology - population ecology - conservation biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,035
2,558
0.634
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,679
2,380
0.509
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Mantle Geochemistry
Cosmochemistry
Geology of southern Africa and western North America
Natural philosophy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,666
2,365
0.273
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
Literary & Cultural Studies
feminisms
postcolonial theory
slave memory
Female Fear Factory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,308
2,228
0.517
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
higher education internationalization
decolonization of knowledge
peace building
social justice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,652
1,420
0.860
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
Analytical Chemistry/Environmental modelling
Ecotoxicology
Persistent organic pollutants
phytoremediation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,410
1,407
0.998
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
Greater Cape Evoscapes: phylogeography
molecular ecology
distribution modelling
subtropical thicket ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,885
1,386
0.735
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
Vegetation ecology
Fire ecology
Invasive plant biology
Conservation management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,201
1,360
0.618
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
Semiconductor Physics
Photovoltaics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,006
1,259
0.419
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
IT
CS
IS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,961
1,232
0.628
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
Manufacturing
Hydrogen
Renewable Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,468
1,219
0.494
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
Fatigue and solid state welding
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,428
1,106
0.456
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
Construction Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,557
1,047
0.672
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
Ecotoxicology
Cyanotoxinology and Cyanotoxicology
Fresh water quality
Phytoremediation
Bio-fertilizers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,707
1,003
0.371
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
Development Economics
Experimental Economics
Behavioural Economics
Applied Microeconomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,040
938
0.902
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
Experience Marketing
Service Quality
Consumer Behavior
Tourism. Marketing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,875
917
0.489
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
Inorganic chemistry
materials
catalysis
hydrometallurgy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,636
910
0.556
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
Family Businesses
SMEs
Entrepreneurship
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,028
862
0.425
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,392
838
0.602
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
Biochemistry
Medical Science
Toxicology
Metabolic Disorders
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
976
835
0.856
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
electron microscopy
swift heavy ions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
982
832
0.847
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
Large herbivore ecology
Plant-animal interactions
Rangeland ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,348
818
0.607
* Last 6 Years Citation Counts Rankings
Rankings
26,747
102
1
Ranking Based On Selection: 1
Richard M. Cowling
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,762
12,330
0.269
Plant diversity and evolution
palaeovegetation science
conservation science
* Last 6 Years Citation Counts Rankings
Rankings
56,127
231
2
Ranking Based On Selection: 2
Graham Ih Kerley
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,411
7,424
0.452
Conservation biology
megaherbivore ecology
predator prey interactions
ecological history
* Last 6 Years Citation Counts Rankings
Rankings
127,697
560
3
Ranking Based On Selection: 3
Rajesh Anandjiwala
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,562
3,917
0.518
nonwoven
textiles
fibre reinforced compoistes
technical textiles
* Last 6 Years Citation Counts Rankings
Rankings
206,340
924
4
Ranking Based On Selection: 4
Pierre Pistorius
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,035
2,558
0.634
marine top predators - behavioural ecology - population ecology - conservation biology
* Last 6 Years Citation Counts Rankings
Rankings
222,580
999
5
Ranking Based On Selection: 5
Maryna Van De Venter
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,679
2,380
0.509
* Last 6 Years Citation Counts Rankings
Rankings
223,982
1,006
6
Ranking Based On Selection: 6
David Bell
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,666
2,365
0.273
Mantle Geochemistry
Cosmochemistry
Geology of southern Africa and western North America
Natural philosophy
* Last 6 Years Citation Counts Rankings
Rankings
237,964
1,076
7
Ranking Based On Selection: 7
Pumla Dineo Gqola
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,308
2,228
0.517
Literary & Cultural Studies
feminisms
postcolonial theory
slave memory
Female Fear Factory
* Last 6 Years Citation Counts Rankings
Rankings
363,778
1,738
8
Ranking Based On Selection: 8
Savo Heleta
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,652
1,420
0.860
higher education internationalization
decolonization of knowledge
peace building
social justice
* Last 6 Years Citation Counts Rankings
Rankings
366,725
1,765
9
Ranking Based On Selection: 9
Chijioke Olisah
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,410
1,407
0.998
Analytical Chemistry/Environmental modelling
Ecotoxicology
Persistent organic pollutants
phytoremediation
* Last 6 Years Citation Counts Rankings
Rankings
371,348
1,793
10
Ranking Based On Selection: 10
Alastair Potts
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,885
1,386
0.735
Greater Cape Evoscapes: phylogeography
molecular ecology
distribution modelling
subtropical thicket ecology
* Last 6 Years Citation Counts Rankings
Rankings
377,290
1,830
11
Ranking Based On Selection: 11
Tineke Kraaij
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,201
1,360
0.618
Vegetation ecology
Fire ecology
Invasive plant biology
Conservation management
* Last 6 Years Citation Counts Rankings
Rankings
402,049
1,953
12
Ranking Based On Selection: 12
EE Van Dyk
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,006
1,259
0.419
* Last 6 Years Citation Counts Rankings
Rankings
409,468
1,995
13
Ranking Based On Selection: 13
Andre Calitz
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,961
1,232
0.628
* Last 6 Years Citation Counts Rankings
Rankings
412,892
2,010
14
Ranking Based On Selection: 14
K. Abou-El-Hossein
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,468
1,219
0.494
Manufacturing
Hydrogen
Renewable Energy
* Last 6 Years Citation Counts Rankings
Rankings
445,653
2,163
15
Ranking Based On Selection: 15
DG Hattingh
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,428
1,106
0.456
* Last 6 Years Citation Counts Rankings
Rankings
464,638
2,270
16
Ranking Based On Selection: 16
Winston Shakantu
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,557
1,047
0.672
* Last 6 Years Citation Counts Rankings
Rankings
479,553
2,361
17
Ranking Based On Selection: 17
Tim Downing
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,707
1,003
0.371
Ecotoxicology
Cyanotoxinology and Cyanotoxicology
Fresh water quality
Phytoremediation
Bio-fertilizers
* Last 6 Years Citation Counts Rankings
Rankings
503,316
2,512
18
Ranking Based On Selection: 18
Syden Mishi
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,040
938
0.902
Development Economics
Experimental Economics
Behavioural Economics
Applied Microeconomics
* Last 6 Years Citation Counts Rankings
Rankings
511,316
2,565
19
Ranking Based On Selection: 19
Laetitia Radder
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,875
917
0.489
Experience Marketing
Service Quality
Consumer Behavior
Tourism. Marketing
* Last 6 Years Citation Counts Rankings
Rankings
514,130
2,578
20
Ranking Based On Selection: 20
Zenixole Tshentu
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,636
910
0.556
Inorganic chemistry
materials
catalysis
hydrometallurgy
* Last 6 Years Citation Counts Rankings
Rankings
533,551
2,698
21
Ranking Based On Selection: 21
Elmarie Venter
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,028
862
0.425
Family Businesses
SMEs
Entrepreneurship
* Last 6 Years Citation Counts Rankings
Rankings
543,862
2,761
22
Ranking Based On Selection: 22
Benjamin Wigley
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,392
838
0.602
* Last 6 Years Citation Counts Rankings
Rankings
545,293
2,771
23
Ranking Based On Selection: 23
Savania Nagiah
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
976
835
0.856
Biochemistry
Medical Science
Toxicology
Metabolic Disorders
* Last 6 Years Citation Counts Rankings
Rankings
546,575
2,777
24
Ranking Based On Selection: 24
Arno Janse Van Vuuren
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
982
832
0.847
* Last 6 Years Citation Counts Rankings
Rankings
552,600
2,808
25
Ranking Based On Selection: 25
Marietjie Landman
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,348
818
0.607
Large herbivore ecology
Plant-animal interactions
Rangeland ecology