Top 100 Scientists

World Top 100 Scientists 2025

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" (901,365 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.

* Rankings
Ranking Based On Selection :1
Sergio R Floeter
Reef fish
Biogeography
Evolution
Ecology
Macroecology
Metrics
H-Index
i10 Index
Citation
55
140
11,161
* Rankings
Ranking Based On Selection :3
Paulo C Simões Lopes
Ecologia Comportamental
Ecologia Populacional
Anatomia Comparada
Zoologia
Mamíferos Marinhos
Metrics
H-Index
i10 Index
Citation
41
118
6,009
* Rankings
Ranking Based On Selection :4
Paulo C Simoes Lopes
mamíferos marinhos
golfinhos
ecologia comportamental
morfologia do esqueleto
anatomia comparada e biomecânica do esqueleto
Metrics
H-Index
i10 Index
Citation
41
113
5,862
Fabio Daura
Population Ecology
Conservation Biology
Behaviour Ecology
Metrics
H-Index
i10 Index
Citation
30
59
2,553
Jucinei Comin
Manejo e conservação do solo
Sistema e Plantio Direto de Hortaliças Agroecologia
Metrics
H-Index
i10 Index
Citation
28
67
2,679
* Rankings
Ranking Based On Selection :11
Pedro Giovâni Da Silva
Community Ecology
Conservation
Diversity
Scarabaeinae
Dung beetles
Metrics
H-Index
i10 Index
Citation
25
51
2,510
* Rankings
Ranking Based On Selection :12
Leonardo Rubi Rörig
Algal Biotechnology
Biological Oceanography
Bioremediation and ecotoxicology
ecology of sandy beaches
Phytoplankton
Metrics
H-Index
i10 Index
Citation
25
57
2,133
* Rankings
Ranking Based On Selection :14
Carolina Levis
Forest Ecology
Forest Management
Historical and Human Ecology
Domestication of plants and landscapes
Ethnoecology
Metrics
H-Index
i10 Index
Citation
23
37
5,605
* Rankings
Ranking Based On Selection :19
Alexandre Siminski
Ecologia Florestal
Ecologia da Restauração
Produtos Florestais Não Madeireiros
Sistemas Agroflorestais
Metrics
H-Index
i10 Index
Citation
19
34
1,341
* Rankings
Ranking Based On Selection :20
Virgilio Gavicho Uarrota
Biotechnology
Plant Biochemistry
Plant Physiology
Chemometrics
Metabolomics
Metrics
H-Index
i10 Index
Citation
18
28
1,306
* Rankings
Ranking Based On Selection :21
José Floriano Barêa Pastore
Phylogeny of Polygalaceae
Phylogeny of Legumes
Phylogeny of Lamiaceae. Taxonomy of Neotropical Polygalaceae
Metrics
H-Index
i10 Index
Citation
18
37
2,779
* Rankings
Ranking Based On Selection :23
Maria Elisa Magri
Ecological Sanitation
Microbiology
Public Health
Sanitation
Metrics
H-Index
i10 Index
Citation
15
19
1,308
* Rankings
Ranking Based On Selection :26
Duane Fernandes Lima
Sistemática molecular
Filogenia
Biogeografia
Evolução
Taxonomia
Metrics
H-Index
i10 Index
Citation
12
14
1,091
Giovanna Destri
biological oceanography
climate change
reef systems
coral reefs
Metrics
H-Index
i10 Index
Citation
3
1
19
Rankings
Ranking Based On Selection: 1
Sergio R Floeter
Metrics
H-Index
i10 Index
Citation Counts
55
140
11,161
Reef fish
Biogeography
Evolution
Ecology
Macroecology
Rankings
Ranking Based On Selection: 2
Afonso Celso Dias Bainy
Metrics
H-Index
i10 Index
Citation Counts
47
104
6,376
Rankings
Ranking Based On Selection: 3
Paulo C Simões Lopes
Metrics
H-Index
i10 Index
Citation Counts
41
118
6,009
Ecologia Comportamental
Ecologia Populacional
Anatomia Comparada
Zoologia
Mamíferos Marinhos
Rankings
Ranking Based On Selection: 4
Paulo C Simoes Lopes
Metrics
H-Index
i10 Index
Citation Counts
41
113
5,862
mamíferos marinhos
golfinhos
ecologia comportamental
morfologia do esqueleto
anatomia comparada e biomecânica do esqueleto
Rankings
Ranking Based On Selection: 5
Antonio Hf Klein
Metrics
H-Index
i10 Index
Citation Counts
38
97
4,357
Rankings
Ranking Based On Selection: 6
Aderbal Aguiar
Metrics
H-Index
i10 Index
Citation Counts
34
50
2,998
Rankings
Ranking Based On Selection: 7
Maurício E Graipel
Metrics
H-Index
i10 Index
Citation Counts
32
58
3,107
Rankings
Ranking Based On Selection: 8
Fabio Daura
Metrics
H-Index
i10 Index
Citation Counts
30
59
2,553
Population Ecology
Conservation Biology
Behaviour Ecology
Rankings
Ranking Based On Selection: 9
Jucinei Comin
Metrics
H-Index
i10 Index
Citation Counts
28
67
2,679
Manejo e conservação do solo
Sistema e Plantio Direto de Hortaliças Agroecologia
Rankings
Ranking Based On Selection: 10
Cristiano José De Andrade
Metrics
H-Index
i10 Index
Citation Counts
25
43
1,947
Rankings
Ranking Based On Selection: 11
Pedro Giovâni Da Silva
Metrics
H-Index
i10 Index
Citation Counts
25
51
2,510
Community Ecology
Conservation
Diversity
Scarabaeinae
Dung beetles
Rankings
Ranking Based On Selection: 12
Leonardo Rubi Rörig
Metrics
H-Index
i10 Index
Citation Counts
25
57
2,133
Algal Biotechnology
Biological Oceanography
Bioremediation and ecotoxicology
ecology of sandy beaches
Phytoplankton
Rankings
Ranking Based On Selection: 13
Daniel Santos Mansur
Metrics
H-Index
i10 Index
Citation Counts
24
34
2,995
Rankings
Ranking Based On Selection: 14
Carolina Levis
Metrics
H-Index
i10 Index
Citation Counts
23
37
5,605
Forest Ecology
Forest Management
Historical and Human Ecology
Domestication of plants and landscapes
Ethnoecology
Rankings
Ranking Based On Selection: 16
Elisandro Ricardo Drechsler Santos
Metrics
H-Index
i10 Index
Citation Counts
23
45
1,504
Rankings
Ranking Based On Selection: 17
Luciane M Perazzolo
Metrics
H-Index
i10 Index
Citation Counts
21
27
1,525
Imunologia/Sanidade de Crustáceos e Biotecnologia marinha
Rankings
Ranking Based On Selection: 18
Eduardo L Hettwer Giehl
Metrics
H-Index
i10 Index
Citation Counts
20
30
1,296
Rankings
Ranking Based On Selection: 19
Alexandre Siminski
Metrics
H-Index
i10 Index
Citation Counts
19
34
1,341
Ecologia Florestal
Ecologia da Restauração
Produtos Florestais Não Madeireiros
Sistemas Agroflorestais
Rankings
Ranking Based On Selection: 20
Virgilio Gavicho Uarrota
Metrics
H-Index
i10 Index
Citation Counts
18
28
1,306
Biotechnology
Plant Biochemistry
Plant Physiology
Chemometrics
Metabolomics
Rankings
Ranking Based On Selection: 21
José Floriano Barêa Pastore
Metrics
H-Index
i10 Index
Citation Counts
18
37
2,779
Phylogeny of Polygalaceae
Phylogeny of Legumes
Phylogeny of Lamiaceae. Taxonomy of Neotropical Polygalaceae
Rankings
Ranking Based On Selection: 22
Selvino Neckel De Oliveira
Metrics
H-Index
i10 Index
Citation Counts
16
30
1,257
Ecologia
Conservação
Anfibios
Mata Atlantica
Rankings
Ranking Based On Selection: 23
Maria Elisa Magri
Metrics
H-Index
i10 Index
Citation Counts
15
19
1,308
Ecological Sanitation
Microbiology
Public Health
Sanitation
Rankings
Ranking Based On Selection: 24
Diogo Robl
Metrics
H-Index
i10 Index
Citation Counts
14
19
765
Rankings
Ranking Based On Selection: 25
Gustavo J Santos
Metrics
H-Index
i10 Index
Citation Counts
13
13
567
Biologia
Fisiologia
Bioquímica
Biologia Molecular
Rankings
Ranking Based On Selection: 26
Duane Fernandes Lima
Metrics
H-Index
i10 Index
Citation Counts
12
14
1,091
Sistemática molecular
Filogenia
Biogeografia
Evolução
Taxonomia
Rankings
Ranking Based On Selection: 27
Rafael Barbizan Sühs
Metrics
H-Index
i10 Index
Citation Counts
11
13
703
Rankings
Ranking Based On Selection: 28
Renato Hajenius Aché De Freitas
Metrics
H-Index
i10 Index
Citation Counts
11
11
578
ecologia marinha
ecologia comportamental
elasmobrânquios
Rankings
Ranking Based On Selection: 29
Daisy Christiane Zambiazi
Metrics
H-Index
i10 Index
Citation Counts
6
5
109
Rankings
Ranking Based On Selection: 30
Guilherme De Almeida Garcia Rodrigues
Metrics
H-Index
i10 Index
Citation Counts
4
4
543
Rankings
Ranking Based On Selection: 31
Bianca Romeu
Metrics
H-Index
i10 Index
Citation Counts
4
2
65
Rankings
Ranking Based On Selection: 32
Fábio Leal Viana Bones
Metrics
H-Index
i10 Index
Citation Counts
3
2
33
Rankings
Ranking Based On Selection: 33
Giovanna Destri
Metrics
H-Index
i10 Index
Citation Counts
3
1
19
biological oceanography
climate change
reef systems
coral reefs