University, Subject, Country, Region, World
Nelson Mandela University 315 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jan 30, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Plant diversity and evolution
palaeovegetation science
conservation science
Metrics
H-Index
i10 Index
Citation Counts
117
384
46,133
* Total H IndexRankings
Ranking Based On Selection: 2
Conservation biology
megaherbivore ecology
predator prey interactions
ecological history
Metrics
H-Index
i10 Index
Citation Counts
66
222
16,700
* Total H IndexRankings
Ranking Based On Selection: 3
Metrics
H-Index
i10 Index
Citation Counts
39
81
4,761
* Total H IndexRankings
Ranking Based On Selection: 4
Mantle Geochemistry
Cosmochemistry
Geology of southern Africa and western North America
Natural philosophy
Metrics
H-Index
i10 Index
Citation Counts
38
49
8,736
* Total H IndexRankings
Ranking Based On Selection: 5
nonwoven
textiles
fibre reinforced compoistes
technical textiles
Metrics
H-Index
i10 Index
Citation Counts
35
75
7,691
* Total H IndexRankings
Ranking Based On Selection: 6
marine top predators - behavioural ecology - population ecology - conservation biology
Metrics
H-Index
i10 Index
Citation Counts
33
106
4,166
* Total H IndexRankings
Ranking Based On Selection: 7
Ecotoxicology
Cyanotoxinology and Cyanotoxicology
Fresh water quality
Phytoremediation
Bio-fertilizers
Metrics
H-Index
i10 Index
Citation Counts
29
46
2,724
* Total H IndexRankings
Ranking Based On Selection: 8
Literary & Cultural Studies
feminisms
postcolonial theory
slave memory
Female Fear Factory
Metrics
H-Index
i10 Index
Citation Counts
27
39
4,450
* Total H IndexRankings
Ranking Based On Selection: 9
Manufacturing
Hydrogen
Renewable Energy
Metrics
H-Index
i10 Index
Citation Counts
26
66
2,516
* Total H IndexRankings
Ranking Based On Selection: 10
Semiconductor Physics
Photovoltaics
Metrics
H-Index
i10 Index
Citation Counts
26
45
3,050
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!
* Total H IndexRankings
Ranking Based On Selection: 11
Vegetation ecology
Fire ecology
Invasive plant biology
Conservation management
Metrics
H-Index
i10 Index
Citation Counts
25
42
2,271
* Total H IndexRankings
Ranking Based On Selection: 12
Greater Cape Evoscapes: phylogeography
molecular ecology
distribution modelling
subtropical thicket ecology
Metrics
H-Index
i10 Index
Citation Counts
24
40
1,932
* Total H IndexRankings
Ranking Based On Selection: 13
IT
CS
IS
Metrics
H-Index
i10 Index
Citation Counts
24
57
2,021
* Total H IndexRankings
Ranking Based On Selection: 14
Fatigue and solid state welding
Metrics
H-Index
i10 Index
Citation Counts
24
42
2,456
* Total H IndexRankings
Ranking Based On Selection: 15
Machine Learning and Computational Intelligence
Image Processing
Telecommunications
Signal Processing
Engineering Education
Metrics
H-Index
i10 Index
Citation Counts
24
53
2,178
* Total H IndexRankings
Ranking Based On Selection: 16
compound semiconductors
Metrics
H-Index
i10 Index
Citation Counts
24
68
2,160
* Total H IndexRankings
Ranking Based On Selection: 17
Metrics
H-Index
i10 Index
Citation Counts
23
31
2,679
* Total H IndexRankings
Ranking Based On Selection: 18
Analytical Chemistry/Environmental modelling
Ecotoxicology
Persistent organic pollutants
phytoremediation
Metrics
H-Index
i10 Index
Citation Counts
22
40
1,563
* Total H IndexRankings
Ranking Based On Selection: 19
Construction Management
Metrics
H-Index
i10 Index
Citation Counts
22
43
1,617
* Total H IndexRankings
Ranking Based On Selection: 20
Inorganic chemistry
materials
catalysis
hydrometallurgy
Metrics
H-Index
i10 Index
Citation Counts
22
57
1,663
* Total H IndexRankings
Ranking Based On Selection: 21
family business
entrepreneurship
small business
Metrics
H-Index
i10 Index
Citation Counts
22
33
1,594
* Total H IndexRankings
Ranking Based On Selection: 22
Family Businesses
SMEs
Entrepreneurship
Metrics
H-Index
i10 Index
Citation Counts
21
31
2,062
* Total H IndexRankings
Ranking Based On Selection: 23
Forest Silviculture
Vegetation Management
Coppice Management
Plantation Regeneration
Metrics
H-Index
i10 Index
Citation Counts
21
44
1,798
* Total H IndexRankings
Ranking Based On Selection: 24
Palaeoecology
Palynology
Palaeoclimatology
Palaeoenvironments
Metrics
H-Index
i10 Index
Citation Counts
20
26
1,049
* Total H IndexRankings
Ranking Based On Selection: 25
Electron microscopy
SHI irradiation effects in solids
Metrics
H-Index
i10 Index
Citation Counts
20
38
1,026
Richard M. Cowling
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
117
384
46,133
Plant diversity and evolution
palaeovegetation science
conservation science
Graham Ih Kerley
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
66
222
16,700
Conservation biology
megaherbivore ecology
predator prey interactions
ecological history
Maryna Van De Venter
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
39
81
4,761
David Bell
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
38
49
8,736
Mantle Geochemistry
Cosmochemistry
Geology of southern Africa and western North America
Natural philosophy
Rajesh Anandjiwala
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
35
75
7,691
nonwoven
textiles
fibre reinforced compoistes
technical textiles
Pierre Pistorius
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
33
106
4,166
marine top predators - behavioural ecology - population ecology - conservation biology
Tim Downing
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
29
46
2,724
Ecotoxicology
Cyanotoxinology and Cyanotoxicology
Fresh water quality
Phytoremediation
Bio-fertilizers
Pumla Dineo Gqola
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
27
39
4,450
Literary & Cultural Studies
feminisms
postcolonial theory
slave memory
Female Fear Factory
K. Abou-El-Hossein
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
26
66
2,516
Manufacturing
Hydrogen
Renewable Energy
EE Van Dyk
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
26
45
3,050
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!
Tineke Kraaij
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
25
42
2,271
Vegetation ecology
Fire ecology
Invasive plant biology
Conservation management
Alastair Potts
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
24
40
1,932
Greater Cape Evoscapes: phylogeography
molecular ecology
distribution modelling
subtropical thicket ecology
Andre Calitz
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
24
57
2,021
DG Hattingh
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
24
42
2,456
Barend Van Wyk
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
24
53
2,178
Machine Learning and Computational Intelligence
Image Processing
Telecommunications
Signal Processing
Engineering Education
Johannes Reinhardt Botha
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
24
68
2,160
Joanne R Naidoo
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
23
31
2,679
Chijioke Olisah
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
22
40
1,563
Analytical Chemistry/Environmental modelling
Ecotoxicology
Persistent organic pollutants
phytoremediation
Winston Shakantu
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
22
43
1,617
Zenixole Tshentu
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
22
57
1,663
Inorganic chemistry
materials
catalysis
hydrometallurgy
Shelley M Farrington
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
22
33
1,594
family business
entrepreneurship
small business
Elmarie Venter
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
21
31
2,062
Family Businesses
SMEs
Entrepreneurship
Little KM
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
21
44
1,798
Forest Silviculture
Vegetation Management
Coppice Management
Plantation Regeneration
Lynne J. Quick
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
20
26
1,049
Palaeoecology
Palynology
Palaeoclimatology
Palaeoenvironments
Jacques O'connell
Nelson Mandela University
Port Elizabeth, South Africa
Metrics
H-Index
i10-Index
Citation Counts
20
38
1,026
Electron microscopy
SHI irradiation effects in solids