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 :2
Michael Bahn
global change ecology
functional ecology
biogeochemical cycles
plant-soil interactions
Metrics
H-Index
i10 Index
Citation
71
160
22,457
* Rankings
Ranking Based On Selection :3
Ruben Sommaruga
Aquatic Ecology
Limnology
Microbial Ecology
Global Change
Photobiology
Metrics
H-Index
i10 Index
Citation
63
146
12,768
* Rankings
Ranking Based On Selection :4
Peter Schönswetter
Botany
biogeography
evolution
systematics
Metrics
H-Index
i10 Index
Citation
52
120
8,463
* Rankings
Ranking Based On Selection :5
Martin W Hahn
Freshwater Bacteria
Microbial Diversity
Evolutionary Ecology
Metrics
H-Index
i10 Index
Citation
50
82
7,697
* Rankings
Ranking Based On Selection :6
Michael Traugott
trophic interactions
eDNA
biomonitoring
animal ecology
entomology
Metrics
H-Index
i10 Index
Citation
48
114
7,352
* Rankings
Ranking Based On Selection :9
Rainer Kurmayer
molecular ecology and ecophysiology of cyanobacteria (algae)
cyanotoxins
water quality
eutrophication
ecosystem services
Metrics
H-Index
i10 Index
Citation
39
60
5,231
* Rankings
Ranking Based On Selection :12
Judith Ascher Jenull
Microbial molecular ecology
extracellular DNA
Metrics
H-Index
i10 Index
Citation
33
55
7,220
* Rankings
Ranking Based On Selection :15
Otto Seppälä
evolutionary ecology
aquatic ecology
host-parasite interactions
global change
Metrics
H-Index
i10 Index
Citation
30
50
2,701
* Rankings
Ranking Based On Selection :16
Klaus Oeggl
Palaeoecology
Archaeobotany
Palaeoethnobotany
Metrics
H-Index
i10 Index
Citation
30
66
3,151
* Rankings
Ranking Based On Selection :17
Georg Leitinger
Ecohydrology
Landscape Change (Modelling)
Scenarios Development
Spatial Snow Glide Model (SSGM)
Social-Ecological Systems
Metrics
H-Index
i10 Index
Citation
29
43
2,931
* Rankings
Ranking Based On Selection :18
Božo Frajman
Botany
Evolutionary Biology
Biogeography
Nature conservation
Metrics
H-Index
i10 Index
Citation
28
65
3,092
* Rankings
Ranking Based On Selection :19
Eugen Rott
Freshwater
phytoplankton
benthic algae
ecophysiology
taxonomy
Metrics
H-Index
i10 Index
Citation
28
55
4,493
* Rankings
Ranking Based On Selection :21
Dunja Lamatsch
Evolution
asexual reproduction
sex chromosomes
genome size determination
sex determination
Metrics
H-Index
i10 Index
Citation
26
39
2,142
* Rankings
Ranking Based On Selection :23
Bettina Sonntag
Ciliate ecology and taxonomy - Limnology
Metrics
H-Index
i10 Index
Citation
24
39
1,640
* Rankings
Ranking Based On Selection :24
Clemens Ager
Life Science
Breath Research
Data Science
Statistics
Mass Spectroscopy
Metrics
H-Index
i10 Index
Citation
20
24
3,522
* Rankings
Ranking Based On Selection :26
Johannes Rüdisser
Ecology
Landscape Ecology
GIS
Biodiversity
Environmental Education
Metrics
H-Index
i10 Index
Citation
19
31
1,205
* Rankings
Ranking Based On Selection :29
Jasper Bloemen
Global Change Ecology
Climate Change
Forest Carbon Cycle
Metrics
H-Index
i10 Index
Citation
16
19
1,325
* Rankings
Ranking Based On Selection :31
Romana Limberger
biodiversity
metacommunity
environmental change
eco-evolutionary dynamics
ecological forecasting
Metrics
H-Index
i10 Index
Citation
10
10
512
Georg Frenck
physiological/ functional/ comparative plant ecology
Metrics
H-Index
i10 Index
Citation
9
9
328
Anna-Sophia Egger
proteomics
metabolomics
biochemistry
bioanalytics
mass spectrometry
Metrics
H-Index
i10 Index
Citation
7
7
930
Marcelo Rodrigues
Atmospheric Science
Synoptic Meteorology
Climate Change
Cyclones
Metrics
H-Index
i10 Index
Citation
4
4
367
Nargess Shahbazi
pancreas development and regeneration
drug discovery
zebrafish model
natural products
Metrics
H-Index
i10 Index
Citation
2
0
12
Rankings
Ranking Based On Selection: 1
Gregor K Wenning
Metrics
H-Index
i10 Index
Citation Counts
115
410
56,160
Rankings
Ranking Based On Selection: 2
Michael Bahn
Metrics
H-Index
i10 Index
Citation Counts
71
160
22,457
global change ecology
functional ecology
biogeochemical cycles
plant-soil interactions
Rankings
Ranking Based On Selection: 3
Ruben Sommaruga
Metrics
H-Index
i10 Index
Citation Counts
63
146
12,768
Aquatic Ecology
Limnology
Microbial Ecology
Global Change
Photobiology
Rankings
Ranking Based On Selection: 4
Peter Schönswetter
Metrics
H-Index
i10 Index
Citation Counts
52
120
8,463
Rankings
Ranking Based On Selection: 5
Martin W Hahn
Metrics
H-Index
i10 Index
Citation Counts
50
82
7,697
Freshwater Bacteria
Microbial Diversity
Evolutionary Ecology
Rankings
Ranking Based On Selection: 6
Michael Traugott
Metrics
H-Index
i10 Index
Citation Counts
48
114
7,352
trophic interactions
eDNA
biomonitoring
animal ecology
entomology
Rankings
Ranking Based On Selection: 7
Reinhard Dallinger
Metrics
H-Index
i10 Index
Citation Counts
47
95
7,149
Rankings
Ranking Based On Selection: 8
Willi Salvenmoser
Metrics
H-Index
i10 Index
Citation Counts
40
81
4,943
Rankings
Ranking Based On Selection: 9
Rainer Kurmayer
Metrics
H-Index
i10 Index
Citation Counts
39
60
5,231
molecular ecology and ecophysiology of cyanobacteria (algae)
cyanotoxins
water quality
eutrophication
ecosystem services
Rankings
Ranking Based On Selection: 10
Ursula Peintner
Metrics
H-Index
i10 Index
Citation Counts
36
73
9,407
Rankings
Ranking Based On Selection: 11
Rudolf Glueckert
Metrics
H-Index
i10 Index
Citation Counts
33
75
3,151
Rankings
Ranking Based On Selection: 12
Judith Ascher Jenull
Metrics
H-Index
i10 Index
Citation Counts
33
55
7,220
Microbial molecular ecology
extracellular DNA
Rankings
Ranking Based On Selection: 14
Wolfgang Arthofer
Metrics
H-Index
i10 Index
Citation Counts
31
71
2,891
Rankings
Ranking Based On Selection: 15
Otto Seppälä
Metrics
H-Index
i10 Index
Citation Counts
30
50
2,701
evolutionary ecology
aquatic ecology
host-parasite interactions
global change
Rankings
Ranking Based On Selection: 16
Klaus Oeggl
Metrics
H-Index
i10 Index
Citation Counts
30
66
3,151
Palaeoecology
Archaeobotany
Palaeoethnobotany
Rankings
Ranking Based On Selection: 17
Georg Leitinger
Metrics
H-Index
i10 Index
Citation Counts
29
43
2,931
Ecohydrology
Landscape Change (Modelling)
Scenarios Development
Spatial Snow Glide Model (SSGM)
Social-Ecological Systems
Rankings
Ranking Based On Selection: 18
Božo Frajman
Metrics
H-Index
i10 Index
Citation Counts
28
65
3,092
Botany
Evolutionary Biology
Biogeography
Nature conservation
Rankings
Ranking Based On Selection: 19
Eugen Rott
Metrics
H-Index
i10 Index
Citation Counts
28
55
4,493
Freshwater
phytoplankton
benthic algae
ecophysiology
taxonomy
Rankings
Ranking Based On Selection: 20
Rothbächer Ute
Metrics
H-Index
i10 Index
Citation Counts
27
34
6,000
Rankings
Ranking Based On Selection: 21
Dunja Lamatsch
Metrics
H-Index
i10 Index
Citation Counts
26
39
2,142
Evolution
asexual reproduction
sex chromosomes
genome size determination
sex determination
Rankings
Ranking Based On Selection: 22
Julia Seeber
Metrics
H-Index
i10 Index
Citation Counts
25
39
2,513
Rankings
Ranking Based On Selection: 23
Bettina Sonntag
Metrics
H-Index
i10 Index
Citation Counts
24
39
1,640
Rankings
Ranking Based On Selection: 24
Clemens Ager
Metrics
H-Index
i10 Index
Citation Counts
20
24
3,522
Life Science
Breath Research
Data Science
Statistics
Mass Spectroscopy
Rankings
Ranking Based On Selection: 25
Martin Offterdinger
Metrics
H-Index
i10 Index
Citation Counts
20
26
1,637
Rankings
Ranking Based On Selection: 26
Johannes Rüdisser
Metrics
H-Index
i10 Index
Citation Counts
19
31
1,205
Ecology
Landscape Ecology
GIS
Biodiversity
Environmental Education
Rankings
Ranking Based On Selection: 27
Markus Moest
Metrics
H-Index
i10 Index
Citation Counts
17
20
4,170
Rankings
Ranking Based On Selection: 28
Johannes Ingrisch
Metrics
H-Index
i10 Index
Citation Counts
16
20
1,733
Rankings
Ranking Based On Selection: 29
Jasper Bloemen
Metrics
H-Index
i10 Index
Citation Counts
16
19
1,325
Global Change Ecology
Climate Change
Forest Carbon Cycle
Rankings
Ranking Based On Selection: 30
Natalie J Oram
Metrics
H-Index
i10 Index
Citation Counts
12
13
999
Rankings
Ranking Based On Selection: 31
Romana Limberger
Metrics
H-Index
i10 Index
Citation Counts
10
10
512
biodiversity
metacommunity
environmental change
eco-evolutionary dynamics
ecological forecasting
Rankings
Ranking Based On Selection: 32
Georg Frenck
Metrics
H-Index
i10 Index
Citation Counts
9
9
328
physiological/ functional/ comparative plant ecology
Rankings
Ranking Based On Selection: 33
Anna-Sophia Egger
Metrics
H-Index
i10 Index
Citation Counts
7
7
930
proteomics
metabolomics
biochemistry
bioanalytics
mass spectrometry
Rankings
Ranking Based On Selection: 34
Florian Oberleitner
Metrics
H-Index
i10 Index
Citation Counts
5
3
349
Rankings
Ranking Based On Selection: 35
Marcelo Rodrigues
Metrics
H-Index
i10 Index
Citation Counts
4
4
367
Atmospheric Science
Synoptic Meteorology
Climate Change
Cyclones
Rankings
Ranking Based On Selection: 36
Alessandro Pennati
Metrics
H-Index
i10 Index
Citation Counts
3
2
62
Rankings
Ranking Based On Selection: 37
Nargess Shahbazi
Metrics
H-Index
i10 Index
Citation Counts
2
0
12
pancreas development and regeneration
drug discovery
zebrafish model
natural products