Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,937 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.
Photobiology
Photochemistry
Photodynamic therapy
Wound healing
Stem cells
Metrics
H-Index
i10 Index
Citation
64
225
15,983
Taxonomy
Ethnobotany
Medicinal plants
Apiaceae
Umbelliferae
Metrics
H-Index
i10 Index
Citation
63
278
19,984
Biotechnology
Biocatalysis
Enzyme Technology
Bioprocess Engineering
Biomaterial Engineering
Metrics
H-Index
i10 Index
Citation
37
79
4,592
molecular ecology
wildlife management
sub-Antarctic
Africa
Metrics
H-Index
i10 Index
Citation
37
83
4,636
Fish haematology
Ecophysiology
Ecotoxicology
Biomarkers
Metrics
H-Index
i10 Index
Citation
36
97
5,573
Marine biology
Phylogeography
Population genomics
Conservation genetics
Metrics
H-Index
i10 Index
Citation
34
70
3,685
* Rankings
Ranking Based On Selection :7
plant anatomy
Apiaceae
Rubiaceae
Umbelliferae
extrafloral nectaries
Metrics
H-Index
i10 Index
Citation
24
76
2,475
* Rankings
Ranking Based On Selection :8
Metrics
H-Index
i10 Index
Citation
21
51
1,348
* Rankings
Ranking Based On Selection :9
Postharvest Physiology
Plant Physiology
Metrics
H-Index
i10 Index
Citation
21
35
1,583
* Rankings
Ranking Based On Selection :10
Plant Taxonomy
Plant Systematics
Plant Anatomy
Ethnobotany
Medicinal Plants
Metrics
H-Index
i10 Index
Citation
17
29
1,179
* Rankings
Ranking Based On Selection :11
Metal Analysis
Water
Passive Sampling Devices
Aquatic Health
Microplastics
Metrics
H-Index
i10 Index
Citation
16
22
751
* Rankings
Ranking Based On Selection :12
Freshwater Ecology
Metrics
H-Index
i10 Index
Citation
16
22
613
* Rankings
Ranking Based On Selection :13
Conservation
Plant Diversity
Plant Taxonomy
Molecular Systematics
Ethnobotany
Metrics
H-Index
i10 Index
Citation
13
17
554
* Rankings
Ranking Based On Selection :14
Bio process
Metagenomics
Microbial diversity
Plant Microbe interactions
Metrics
H-Index
i10 Index
Citation
13
15
739
* Rankings
Ranking Based On Selection :15
Evolutionary genetics
Metrics
H-Index
i10 Index
Citation
10
11
480
* Rankings
Ranking Based On Selection :16
Cell biology
Cytogenetics
Photodynamic therapy
wound healing and gene expression
Photobiomodulation
Metrics
H-Index
i10 Index
Citation
9
9
847
* Rankings
Ranking Based On Selection :17
Ethnobotany
Medicinal plant
phytomedicine
Toxicity
Chemistry of Medicinal Plant
Metrics
H-Index
i10 Index
Citation
9
8
294
* Rankings
Ranking Based On Selection :18
Nanomedicine
Cancer therapeutics
toxicity
Photodynamic therapy
Phytomedicine
Metrics
H-Index
i10 Index
Citation
8
8
656
* Rankings
Ranking Based On Selection :19
Medicinal plants
Phytochemistry
Nutraceuticals
Plant ecology
phycology
Metrics
H-Index
i10 Index
Citation
7
6
193
* Rankings
Ranking Based On Selection :20
Natural Science
Medicine
Management
Metrics
H-Index
i10 Index
Citation
7
6
577
* Rankings
Ranking Based On Selection :21
Arbuscular mycorrhizal interactions
Medicinal Plants
Ethnobotany
Carbon Sequestration
Metrics
H-Index
i10 Index
Citation
6
6
152
* Rankings
Ranking Based On Selection :22
Biotechnology
Water and Health
Metrics
H-Index
i10 Index
Citation
6
5
223
* Rankings
Ranking Based On Selection :23
Biology
Ecology
Water toxicity
Sediment toxicity
Metrics
H-Index
i10 Index
Citation
6
4
70
* Rankings
Ranking Based On Selection :24
Molecular Ecology
Population Genomics
Conservation Genetics
Metrics
H-Index
i10 Index
Citation
5
1
48
* Rankings
Ranking Based On Selection :25
Biotechnology
Metrics
H-Index
i10 Index
Citation
4
2
78
* Rankings
Ranking Based On Selection :26
Plant anatomy
Botany
Evolution
Metrics
H-Index
i10 Index
Citation
4
2
57
* Rankings
Ranking Based On Selection :27
Conservation Genetics
Metrics
H-Index
i10 Index
Citation
4
1
37
* Rankings
Ranking Based On Selection :28
Genetics
Phylogeny
Botany
Cycads
Barcoding
Metrics
H-Index
i10 Index
Citation
4
1
54
* Rankings
Ranking Based On Selection :29
Botany
plant taxonomy
molecular systematics
Metrics
H-Index
i10 Index
Citation
3
2
32
* Rankings
Ranking Based On Selection :30
Ethnobotany
Phytomedicine
DNA barcoding
Topic Modelling
Scientometrics
Metrics
H-Index
i10 Index
Citation
2
2
49
* Rankings
Ranking Based On Selection :31
Ecology
evolution
ethology
Metrics
H-Index
i10 Index
Citation
2
2
30
* Rankings
Ranking Based On Selection :32
Biogas
Water Resources Management
Virtual Water
biodiversity conservation
Zoology
Metrics
H-Index
i10 Index
Citation
2
2
23
* Rankings
Ranking Based On Selection :33
Ecology
Metrics
H-Index
i10 Index
Citation
2
1
18
* Rankings
Ranking Based On Selection :34
Botany
Pharmacology
Plant anatomy
Plant chemistry
Metrics
H-Index
i10 Index
Citation
2
0
11
* Rankings
Ranking Based On Selection :35
Ecology
environmental management
climate change
GIS
Metrics
H-Index
i10 Index
Citation
2
0
11
* Rankings
Ranking Based On Selection :36
Ethnobotany
phytochemistry
plant anatomy
Metrics
H-Index
i10 Index
Citation
2
0
8
* Rankings
Ranking Based On Selection :37
Zoology
parasitology
Metrics
H-Index
i10 Index
Citation
1
1
11
* Rankings
Ranking Based On Selection :38
Ecotoxicology
Aquatic health
Environmental management
Metrics
H-Index
i10 Index
Citation
1
0
4
* Rankings
Ranking Based On Selection :39
Molecular systematics
Plant taxonomy
Metrics
H-Index
i10 Index
Citation
1
0
1
* Rankings
Ranking Based On Selection :40
Design education
the Fourth Industrial Revolution
Sustainable Design
Interior Design
Metrics
H-Index
i10 Index
Citation
1
0
1
Heidi Abrahamse
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
64
225
15,983
Photobiology
Photochemistry
Photodynamic therapy
Wound healing
Stem cells
Ben-Erik Van Wyk
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
63
278
19,984
Taxonomy
Ethnobotany
Medicinal plants
Apiaceae
Umbelliferae
Gibson Stephen Nyanhongo
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
37
79
4,592
Biotechnology
Biocatalysis
Enzyme Technology
Bioprocess Engineering
Biomaterial Engineering
Bettine Van Vuuren
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
37
83
4,636
molecular ecology
wildlife management
sub-Antarctic
Africa
Jhj Van Vuren
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
36
97
5,573
Fish haematology
Ecophysiology
Ecotoxicology
Biomarkers
Peter Teske
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
34
70
3,685
Marine biology
Phylogeography
Population genomics
Conservation genetics
Patricia M Tilney
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
24
76
2,475
plant anatomy
Apiaceae
Rubiaceae
Umbelliferae
extrafloral nectaries
Alexei Oskolski
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
21
51
1,348
Charles Whitehead
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
21
35
1,583
Postharvest Physiology
Plant Physiology
Annah Moteetee
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
17
29
1,179
Plant Taxonomy
Plant Systematics
Plant Anatomy
Ethnobotany
Medicinal Plants
Richard Greenfield
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
16
22
751
Metal Analysis
Water
Passive Sampling Devices
Aquatic Health
Microplastics
Matthew S. Bird
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
16
22
613
Abdulwakeel Ayokun-Nun Ajao
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
13
17
554
Conservation
Plant Diversity
Plant Taxonomy
Molecular Systematics
Ethnobotany
Sudharshan Sekar
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
13
15
739
Bio process
Metagenomics
Microbial diversity
Plant Microbe interactions
Arsalan Emami-Khoyi
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
10
11
480
Sandra Ayuk
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
9
9
847
Cell biology
Cytogenetics
Photodynamic therapy
wound healing and gene expression
Photobiomodulation
Mariam Oyedeji Amusa
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
9
8
294
Ethnobotany
Medicinal plant
phytomedicine
Toxicity
Chemistry of Medicinal Plant
Giftson J Senapathy
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
8
8
656
Nanomedicine
Cancer therapeutics
toxicity
Photodynamic therapy
Phytomedicine
Oluwafunmilayo Adegbaju
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
7
6
193
Medicinal plants
Phytochemistry
Nutraceuticals
Plant ecology
phycology
S. Patience N. Mativandlela
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
7
6
577
Natural Science
Medicine
Management
Afolakemi A. Alimi
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
6
6
152
Arbuscular mycorrhizal interactions
Medicinal Plants
Ethnobotany
Carbon Sequestration
Kousar Omar/Hoorzook
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
6
5
223
Amina Nel
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
6
4
70
Biology
Ecology
Water toxicity
Sediment toxicity
Daniela Monsanto
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
5
1
48
Molecular Ecology
Population Genomics
Conservation Genetics
Edwin Hlangwani
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
4
2
78
Akinlabi Fm|Oladapo F M
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
4
2
57
Shilpa Parbhu
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
4
1
37
Janice Sargent Williamson
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
4
1
54
Genetics
Phylogeny
Botany
Cycads
Barcoding
Anifat Bello
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
3
2
32
Botany
plant taxonomy
molecular systematics
Ryan David Rattray
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
2
2
49
Ethnobotany
Phytomedicine
DNA barcoding
Topic Modelling
Scientometrics
Govan Pahad
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
2
2
30
Adeoba Mariam Iyabo
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
2
2
23
Biogas
Water Resources Management
Virtual Water
biodiversity conservation
Zoology
Harini Jagatap
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
2
1
18
Eunezia Sitoe
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
2
0
11
Botany
Pharmacology
Plant anatomy
Plant chemistry
Andisa Andy Mufungizi
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
2
0
11
Ecology
environmental management
climate change
GIS
Kolwane Calphonia Shilaluke|Calphonia Shilaluke
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
2
0
8
Ethnobotany
phytochemistry
plant anatomy
Marilie Pretorius
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
1
1
11
Chris Sihoka
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
1
0
4
Ecotoxicology
Aquatic health
Environmental management
Siyabonga Tibini
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
1
0
1
Molecular systematics
Plant taxonomy
Emmerencia Petronella Marisca Deminey
University of Johannesburg
Johannesburg, South Africa
Metrics
H-Index
i10 Index
Citation Counts
1
0
1
Design education
the Fourth Industrial Revolution
Sustainable Design
Interior Design