Total 2,393,028 scientists, country 221, and institutions 24,451 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
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* Total i10 IndexRankings
Ranking Based On Selection: 1
Plant diversity and evolution
palaeovegetation science
conservation science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
384
243
0.633
* Total i10 IndexRankings
Ranking Based On Selection: 2
Conservation biology
megaherbivore ecology
predator prey interactions
ecological history
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
222
133
0.599
* Total i10 IndexRankings
Ranking Based On Selection: 3
marine top predators - behavioural ecology - population ecology - conservation biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
106
70
0.660
* Total i10 IndexRankings
Ranking Based On Selection: 4
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
64
0.790
* Total i10 IndexRankings
Ranking Based On Selection: 5
nonwoven
textiles
fibre reinforced compoistes
technical textiles
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
75
46
0.613
* Total i10 IndexRankings
Ranking Based On Selection: 6
compound semiconductors
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
18
0.265
* Total i10 IndexRankings
Ranking Based On Selection: 7
Manufacturing
Hydrogen
Renewable Energy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
66
32
0.485
* Total i10 IndexRankings
Ranking Based On Selection: 8
IT
CS
IS
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
31
0.544
* Total i10 IndexRankings
Ranking Based On Selection: 9
Inorganic chemistry
materials
catalysis
hydrometallurgy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
22
0.386
* Total i10 IndexRankings
Ranking Based On Selection: 10
Machine Learning and Computational Intelligence
Image Processing
Telecommunications
Signal Processing
Engineering Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
19
0.358
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* Total i10 IndexRankings
Ranking Based On Selection: 11
Mantle Geochemistry
Cosmochemistry
Geology of southern Africa and western North America
Natural philosophy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
35
0.714
* Total i10 IndexRankings
Ranking Based On Selection: 12
Ecotoxicology
Cyanotoxinology and Cyanotoxicology
Fresh water quality
Phytoremediation
Bio-fertilizers
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
34
0.739
* Total i10 IndexRankings
Ranking Based On Selection: 13
Semiconductor Physics
Photovoltaics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
23
0.511
* Total i10 IndexRankings
Ranking Based On Selection: 14
Forest Silviculture
Vegetation Management
Coppice Management
Plantation Regeneration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
10
0.227
* Total i10 IndexRankings
Ranking Based On Selection: 15
Construction Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
28
0.651
* Total i10 IndexRankings
Ranking Based On Selection: 16
Vegetation ecology
Fire ecology
Invasive plant biology
Conservation management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
30
0.714
* Total i10 IndexRankings
Ranking Based On Selection: 17
Fatigue and solid state welding
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
29
0.690
* Total i10 IndexRankings
Ranking Based On Selection: 18
Analytical Chemistry/Environmental modelling
Ecotoxicology
Persistent organic pollutants
phytoremediation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
40
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 19
Greater Cape Evoscapes: phylogeography
molecular ecology
distribution modelling
subtropical thicket ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
35
0.875
* Total i10 IndexRankings
Ranking Based On Selection: 20
Literary & Cultural Studies
feminisms
postcolonial theory
slave memory
Female Fear Factory
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
26
0.667
* Total i10 IndexRankings
Ranking Based On Selection: 21
Electron microscopy
SHI irradiation effects in solids
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
28
0.737
* Total i10 IndexRankings
Ranking Based On Selection: 22
Development Economics
Experimental Economics
Behavioural Economics
Applied Microeconomics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
32
0.865
* Total i10 IndexRankings
Ranking Based On Selection: 23
electron microscopy
swift heavy ions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
30
0.857
* Total i10 IndexRankings
Ranking Based On Selection: 24
microbialites
macrozoobenthos
geobiology
evolutionary ecology
bioturbation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
27
0.771
* Total i10 IndexRankings
Ranking Based On Selection: 25
Mobile computing
information visualisation
interaction design
smart applications
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
9
0.257
Richard M. Cowling
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
384
243
0.633
Plant diversity and evolution
palaeovegetation science
conservation science
Graham Ih Kerley
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
222
133
0.599
Conservation biology
megaherbivore ecology
predator prey interactions
ecological history
Pierre Pistorius
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
106
70
0.660
marine top predators - behavioural ecology - population ecology - conservation biology
Maryna Van De Venter
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
64
0.790
Rajesh Anandjiwala
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
75
46
0.613
nonwoven
textiles
fibre reinforced compoistes
technical textiles
Johannes Reinhardt Botha
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
18
0.265
K. Abou-El-Hossein
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
66
32
0.485
Manufacturing
Hydrogen
Renewable Energy
Andre Calitz
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
31
0.544
Zenixole Tshentu
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
22
0.386
Inorganic chemistry
materials
catalysis
hydrometallurgy
Barend Van Wyk
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
19
0.358
Machine Learning and Computational Intelligence
Image Processing
Telecommunications
Signal Processing
Engineering Education
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
David Bell
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
35
0.714
Mantle Geochemistry
Cosmochemistry
Geology of southern Africa and western North America
Natural philosophy
Tim Downing
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
34
0.739
Ecotoxicology
Cyanotoxinology and Cyanotoxicology
Fresh water quality
Phytoremediation
Bio-fertilizers
EE Van Dyk
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
23
0.511
Little KM
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
10
0.227
Forest Silviculture
Vegetation Management
Coppice Management
Plantation Regeneration
Winston Shakantu
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
28
0.651
Tineke Kraaij
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
30
0.714
Vegetation ecology
Fire ecology
Invasive plant biology
Conservation management
DG Hattingh
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
29
0.690
Chijioke Olisah
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
40
1.000
Analytical Chemistry/Environmental modelling
Ecotoxicology
Persistent organic pollutants
phytoremediation
Alastair Potts
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
35
0.875
Greater Cape Evoscapes: phylogeography
molecular ecology
distribution modelling
subtropical thicket ecology
Pumla Dineo Gqola
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
26
0.667
Literary & Cultural Studies
feminisms
postcolonial theory
slave memory
Female Fear Factory
Jacques O'connell
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
28
0.737
Electron microscopy
SHI irradiation effects in solids
Syden Mishi
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
32
0.865
Development Economics
Experimental Economics
Behavioural Economics
Applied Microeconomics
Arno Janse Van Vuuren
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
30
0.857
Gavin Rishworth
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
27
0.771
microbialites
macrozoobenthos
geobiology
evolutionary ecology
bioturbation
Janet Wesson
Nelson Mandela University
Port Elizabeth, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
9
0.257
Mobile computing
information visualisation
interaction design
smart applications