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South Africa Scientists H-Index Natural Sciences / Biological Science Rankings in South Africa 2025

AD Scientific Index evaluates the academic productivity and efficiency of scientists and institutions based on the H-index, i10 index, and citation counts. In addition to total H-index rankings, you can also explore rankings and analyses by "Scientists Last 6 Years H-index" and by subject.

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Total 631 scientist
* Total H Index Rankings
World Rank
1,548
Country Rank
5
Institution Rank :1
Ranking Based On Selection :1
South Africa
David M. Richardson
David M. Richardson
Stellenbosch University
Stellenbosch , South Africa
Natural Sciences / Biological Science
invasion ecology
invasion biology
invasion science
conservation biology
biological invasions
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
155
107
0.690
See All Rankings and Analysis
* Total H Index Rankings
World Rank
4,960
Country Rank
12
Institution Rank :1
Ranking Based On Selection :2
South Africa
Richard M. Cowling
Richard M. Cowling
Nelson Mandela University
Port Elizabeth , South Africa
Natural Sciences / Biological Science
Plant diversity and evolution
palaeovegetation science
conservation science
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
117
53
0.453
See All Rankings and Analysis
* Total H Index Rankings
World Rank
5,401
Country Rank
13
Institution Rank :4
Ranking Based On Selection :3
South Africa
William Bond
William Bond
University of Cape Town
Cape Town , South Africa
Natural Sciences / Biological Science
Ecology
evolution
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
114
77
0.675
See All Rankings and Analysis
* Total H Index Rankings
World Rank
5,799
Country Rank
15
Institution Rank :5
Ranking Based On Selection :4
South Africa
Robert J Scholes
Robert J Scholes
University of the Witwatersrand
Johannesburg , South Africa
Natural Sciences / Biological Science
carbon cycle
savannas
earth observation
biodiversity
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
112
73
0.652
See All Rankings and Analysis
* Total H Index Rankings
World Rank
14,795
Country Rank
43
Institution Rank :1
Ranking Based On Selection :5
South Africa
AJ Afolayan
AJ Afolayan
University of Fort Hare
Alice , South Africa
Natural Sciences / Biological Science
Biological science
phytomedicine
botany
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
87
61
0.701
See All Rankings and Analysis
* Total H Index Rankings
World Rank
15,447
Country Rank
44
Institution Rank :3
Ranking Based On Selection :6
South Africa
Guy Midgley
Guy Midgley
Stellenbosch University
Stellenbosch , South Africa
Natural Sciences / Biological Science
Ecology
conservation Biology
Earth system science
Climate change
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
86
60
0.698
See All Rankings and Analysis
* Total H Index Rankings
World Rank
15,615
Country Rank
45
Institution Rank :4
Ranking Based On Selection :7
South Africa
Brian W. Van Wilgen
Brian W. Van Wilgen
Stellenbosch University
Stellenbosch , South Africa
Natural Sciences / Biological Science
Applied ecology
fire ecology
invasion ecology
ecosystem management
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
86
52
0.605
See All Rankings and Analysis
* Total H Index Rankings
World Rank
22,170
Country Rank
69
Institution Rank :1
Ranking Based On Selection :8
South Africa
Whitfield, AK
Whitfield, AK
South African Institute for Aquatic Biodiversity
Makhanda , South Africa
Natural Sciences / Biological Science
Estuarine ecology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
78
40
0.513
See All Rankings and Analysis
* Total H Index Rankings
World Rank
24,361
Country Rank
74
Institution Rank :12
Ranking Based On Selection :9
South Africa
Andrew Forbes
Andrew Forbes
University of the Witwatersrand
Johannesburg , South Africa
Natural Sciences / Biological Science
laser resonators
laser beam shaping
orbital angular momentum
structured light
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
75
66
0.880
See All Rankings and Analysis
* Total H Index Rankings
World Rank
24,644
Country Rank
75
Institution Rank :5
Ranking Based On Selection :10
South Africa
Jacobus Eloff
Jacobus Eloff
University of Pretoria
Pretoria , South Africa
Natural Sciences / Biological Science
Medicinal Plants
Ethnobotany
Phytochemistry
Phytomedicine
Ethnopharmacology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
75
53
0.707
See All Rankings and Analysis
* Total H Index Rankings
World Rank
24,847
Country Rank
76
Institution Rank :12
Ranking Based On Selection :11
South Africa
Michael J. Samways
Michael J. Samways
Stellenbosch University
Stellenbosch , South Africa
Natural Sciences / Biological Science
Insect conservation
invertebrate conservation
conservation biology
landscape ecology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
75
48
0.640
See All Rankings and Analysis
* Total H Index Rankings
World Rank
28,263
Country Rank
84
Institution Rank :6
Ranking Based On Selection :12
South Africa
Slotow, RH
Slotow, RH
University of Kwazulu Natal
Durban , South Africa
Natural Sciences / Biological Science
conservation
ecology
zoology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
72
48
0.667
See All Rankings and Analysis
* Total H Index Rankings
World Rank
31,177
Country Rank
94
Institution Rank :16
Ranking Based On Selection :13
South Africa
Norman Owen-Smith
Norman Owen-Smith
University of the Witwatersrand
Johannesburg , South Africa
Natural Sciences / Biological Science
Wildlife Ecology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
70
42
0.600
See All Rankings and Analysis
* Total H Index Rankings
World Rank
33,386
Country Rank
104
Institution Rank :19
Ranking Based On Selection :14
South Africa
John Wilson
John Wilson
Stellenbosch University
Stellenbosch , South Africa
Natural Sciences / Biological Science
Ecology
Invasion Science
Biological Invasions
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
68
53
0.779
See All Rankings and Analysis
* Total H Index Rankings
World Rank
38,641
Country Rank
119
Institution Rank :9
Ranking Based On Selection :15
South Africa
Matt Hilton
Matt Hilton
University of Kwazulu Natal
Durban , South Africa
Natural Sciences / Biological Science
galaxy evolution
clusters of galaxies
cosmology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
65
46
0.708
See All Rankings and Analysis
* Total H Index Rankings
World Rank
38,732
Country Rank
120
Institution Rank :2
Ranking Based On Selection :16
South Africa
Graham Ih Kerley
Graham Ih Kerley
Nelson Mandela University
Port Elizabeth , South Africa
Natural Sciences / Biological Science
Conservation biology
megaherbivore ecology
predator prey interactions
ecological history
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
65
44
0.677
See All Rankings and Analysis
* Total H Index Rankings
World Rank
39,154
Country Rank
122
Institution Rank :8
Ranking Based On Selection :17
South Africa
Nigel C Bennett
Nigel C Bennett
University of Pretoria
Pretoria , South Africa
Natural Sciences / Biological Science
mole-rats
Reproduction
physiology...
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
65
38
0.585
See All Rankings and Analysis
* Total H Index Rankings
World Rank
40,106
Country Rank
124
Institution Rank :7
Ranking Based On Selection :18
South Africa
Heidi Abrahamse
Heidi Abrahamse
University of Johannesburg
Johannesburg , South Africa
Natural Sciences / Biological Science
Photobiology
Photochemistry
Photodynamic therapy
Wound healing
Stem cells
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
64
51
0.797
See All Rankings and Analysis
* Total H Index Rankings
World Rank
40,676
Country Rank
126
Institution Rank :10
Ranking Based On Selection :19
South Africa
Mathieu Rouget
Mathieu Rouget
University of Kwazulu Natal
Durban , South Africa
Natural Sciences / Biological Science
Biological invasions
biodiversity conservation
land use planning
socio-ecological systems
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
64
43
0.672
See All Rankings and Analysis
* Total H Index Rankings
World Rank
42,835
Country Rank
131
Institution Rank :8
Ranking Based On Selection :20
South Africa
Ben-Erik Van Wyk
Ben-Erik Van Wyk
University of Johannesburg
Johannesburg , South Africa
Natural Sciences / Biological Science
Taxonomy
Ethnobotany
Medicinal plants
Apiaceae
Umbelliferae
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
63
40
0.635
See All Rankings and Analysis
* Total H Index Rankings
World Rank
49,573
Country Rank
161
Institution Rank :11
Ranking Based On Selection :21
South Africa
Michael J Lawes
Michael J Lawes
University of Kwazulu Natal
Durban , South Africa
Natural Sciences / Biological Science
Fire ecology
savanna ecology
forest ecology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
60
38
0.633
See All Rankings and Analysis
* Total H Index Rankings
World Rank
63,993
Country Rank
207
Institution Rank :16
Ranking Based On Selection :22
South Africa
Rudi Van Aarde
Rudi Van Aarde
University of Pretoria
Pretoria , South Africa
Natural Sciences / Biological Science
Conservation Ecology
African elephants
Forest restoration
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
55
29
0.527
See All Rankings and Analysis
* Total H Index Rankings
World Rank
65,727
Country Rank
215
Institution Rank :32
Ranking Based On Selection :23
South Africa
Karen Esler
Karen Esler
Stellenbosch University
Stellenbosch , South Africa
Natural Sciences / Biological Science
Conservation Ecology
Restoration Ecology
Social-Ecological Systems
Invasion Biology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
54
39
0.722
See All Rankings and Analysis
* Total H Index Rankings
World Rank
70,126
Country Rank
237
Institution Rank :20
Ranking Based On Selection :24
South Africa
Susan W. Nicolson
Susan W. Nicolson
University of Pretoria
Pretoria , South Africa
Natural Sciences / Biological Science
pollination
physiology
nectar-feeding birds
honey bees
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
33
0.623
See All Rankings and Analysis
* Total H Index Rankings
World Rank
71,374
Country Rank
241
Institution Rank :35
Ranking Based On Selection :25
South Africa
Terence John Robinson
Terence John Robinson
Stellenbosch University
Stellenbosch , South Africa
Natural Sciences / Biological Science
Evolutionary genetics
Molecular cytogenetics
Mammalian systematics
Phylogenomics
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
20
0.377
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,548
South Africa
5
1
Ranking Based On Selection: 1
David M. Richardson
David M. Richardson
Stellenbosch University Stellenbosch, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
155
107
0.690
Natural Sciences / Biological Science
invasion ecology
invasion biology
invasion science
conservation biology
biological invasions
See All Rankings and Analysis
* Total H Index Rankings
Rankings
4,960
South Africa
12
1
Ranking Based On Selection: 2
Richard M. Cowling
Richard M. Cowling
Nelson Mandela University Port Elizabeth, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
117
53
0.453
Natural Sciences / Biological Science
Plant diversity and evolution
palaeovegetation science
conservation science
See All Rankings and Analysis
* Total H Index Rankings
Rankings
5,401
South Africa
13
4
Ranking Based On Selection: 3
William Bond
William Bond
University of Cape Town Cape Town, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
114
77
0.675
Natural Sciences / Biological Science
Ecology
evolution
See All Rankings and Analysis
* Total H Index Rankings
Rankings
5,799
South Africa
15
5
Ranking Based On Selection: 4
Robert J Scholes
Robert J Scholes
University of the Witwatersrand Johannesburg, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
112
73
0.652
Natural Sciences / Biological Science
carbon cycle
savannas
earth observation
biodiversity
See All Rankings and Analysis
* Total H Index Rankings
Rankings
14,795
South Africa
43
1
Ranking Based On Selection: 5
AJ Afolayan
AJ Afolayan
University of Fort Hare Alice, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
87
61
0.701
Natural Sciences / Biological Science
Biological science
phytomedicine
botany
See All Rankings and Analysis
* Total H Index Rankings
Rankings
15,447
South Africa
44
3
Ranking Based On Selection: 6
Guy Midgley
Guy Midgley
Stellenbosch University Stellenbosch, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
86
60
0.698
Natural Sciences / Biological Science
Ecology
conservation Biology
Earth system science
Climate change
See All Rankings and Analysis
* Total H Index Rankings
Rankings
15,615
South Africa
45
4
Ranking Based On Selection: 7
Brian W. Van Wilgen
Brian W. Van Wilgen
Stellenbosch University Stellenbosch, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
86
52
0.605
Natural Sciences / Biological Science
Applied ecology
fire ecology
invasion ecology
ecosystem management
See All Rankings and Analysis
* Total H Index Rankings
Rankings
22,170
South Africa
69
1
Ranking Based On Selection: 8
Whitfield, AK
Whitfield, AK
South African Institute for Aquatic Biodiversity Makhanda, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
78
40
0.513
Natural Sciences / Biological Science
Estuarine ecology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
24,361
South Africa
74
12
Ranking Based On Selection: 9
Andrew Forbes
Andrew Forbes
University of the Witwatersrand Johannesburg, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
75
66
0.880
Natural Sciences / Biological Science
laser resonators
laser beam shaping
orbital angular momentum
structured light
See All Rankings and Analysis
* Total H Index Rankings
Rankings
24,644
South Africa
75
5
Ranking Based On Selection: 10
Jacobus Eloff
Jacobus Eloff
University of Pretoria Pretoria, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
75
53
0.707
Natural Sciences / Biological Science
Medicinal Plants
Ethnobotany
Phytochemistry
Phytomedicine
Ethnopharmacology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
24,847
South Africa
76
12
Ranking Based On Selection: 11
Michael J. Samways
Michael J. Samways
Stellenbosch University Stellenbosch, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
75
48
0.640
Natural Sciences / Biological Science
Insect conservation
invertebrate conservation
conservation biology
landscape ecology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
28,263
South Africa
84
6
Ranking Based On Selection: 12
Slotow, RH
Slotow, RH
University of Kwazulu Natal Durban, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
72
48
0.667
Natural Sciences / Biological Science
conservation
ecology
zoology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
31,177
South Africa
94
16
Ranking Based On Selection: 13
Norman Owen-Smith
Norman Owen-Smith
University of the Witwatersrand Johannesburg, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
70
42
0.600
Natural Sciences / Biological Science
Wildlife Ecology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
33,386
South Africa
104
19
Ranking Based On Selection: 14
John Wilson
John Wilson
Stellenbosch University Stellenbosch, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
68
53
0.779
Natural Sciences / Biological Science
Ecology
Invasion Science
Biological Invasions
See All Rankings and Analysis
* Total H Index Rankings
Rankings
38,641
South Africa
119
9
Ranking Based On Selection: 15
Matt Hilton
Matt Hilton
University of Kwazulu Natal Durban, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
65
46
0.708
Natural Sciences / Biological Science
galaxy evolution
clusters of galaxies
cosmology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
38,732
South Africa
120
2
Ranking Based On Selection: 16
Graham Ih Kerley
Graham Ih Kerley
Nelson Mandela University Port Elizabeth, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
65
44
0.677
Natural Sciences / Biological Science
Conservation biology
megaherbivore ecology
predator prey interactions
ecological history
See All Rankings and Analysis
* Total H Index Rankings
Rankings
39,154
South Africa
122
8
Ranking Based On Selection: 17
Nigel C Bennett
Nigel C Bennett
University of Pretoria Pretoria, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
65
38
0.585
Natural Sciences / Biological Science
mole-rats
Reproduction
physiology...
See All Rankings and Analysis
* Total H Index Rankings
Rankings
40,106
South Africa
124
7
Ranking Based On Selection: 18
Heidi Abrahamse
Heidi Abrahamse
University of Johannesburg Johannesburg, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
64
51
0.797
Natural Sciences / Biological Science
Photobiology
Photochemistry
Photodynamic therapy
Wound healing
Stem cells
See All Rankings and Analysis
* Total H Index Rankings
Rankings
40,676
South Africa
126
10
Ranking Based On Selection: 19
Mathieu Rouget
Mathieu Rouget
University of Kwazulu Natal Durban, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
64
43
0.672
Natural Sciences / Biological Science
Biological invasions
biodiversity conservation
land use planning
socio-ecological systems
See All Rankings and Analysis
* Total H Index Rankings
Rankings
42,835
South Africa
131
8
Ranking Based On Selection: 20
Ben-Erik Van Wyk
Ben-Erik Van Wyk
University of Johannesburg Johannesburg, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
63
40
0.635
Natural Sciences / Biological Science
Taxonomy
Ethnobotany
Medicinal plants
Apiaceae
Umbelliferae
See All Rankings and Analysis
* Total H Index Rankings
Rankings
49,573
South Africa
161
11
Ranking Based On Selection: 21
Michael J Lawes
Michael J Lawes
University of Kwazulu Natal Durban, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
60
38
0.633
Natural Sciences / Biological Science
Fire ecology
savanna ecology
forest ecology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
63,993
South Africa
207
16
Ranking Based On Selection: 22
Rudi Van Aarde
Rudi Van Aarde
University of Pretoria Pretoria, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
55
29
0.527
Natural Sciences / Biological Science
Conservation Ecology
African elephants
Forest restoration
See All Rankings and Analysis
* Total H Index Rankings
Rankings
65,727
South Africa
215
32
Ranking Based On Selection: 23
Karen Esler
Karen Esler
Stellenbosch University Stellenbosch, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
54
39
0.722
Natural Sciences / Biological Science
Conservation Ecology
Restoration Ecology
Social-Ecological Systems
Invasion Biology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
70,126
South Africa
237
20
Ranking Based On Selection: 24
Susan W. Nicolson
Susan W. Nicolson
University of Pretoria Pretoria, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
33
0.623
Natural Sciences / Biological Science
pollination
physiology
nectar-feeding birds
honey bees
See All Rankings and Analysis
* Total H Index Rankings
Rankings
71,374
South Africa
241
35
Ranking Based On Selection: 25
Terence John Robinson
Terence John Robinson
Stellenbosch University Stellenbosch, South Africa South Africa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
20
0.377
Natural Sciences / Biological Science
Evolutionary genetics
Molecular cytogenetics
Mammalian systematics
Phylogenomics
See All Rankings and Analysis