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" (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.

* Rankings
Ranking Based On Selection :1
Andrew Cunningham
conservation biology
disease ecology
emerging infectious diseases
wildlife health
wildlife disease
Metrics
H-Index
i10 Index
Citation
94
293
44,261
* Rankings
Ranking Based On Selection :2
Nathalie Pettorelli
conservation
monitoring
remote sensing
population ecology
spatial analyses
Metrics
H-Index
i10 Index
Citation
73
190
26,932
* Rankings
Ranking Based On Selection :5
Rosie Woodroffe
conservation biology
behavioural ecology
disease ecology
Metrics
H-Index
i10 Index
Citation
69
126
18,292
* Rankings
Ranking Based On Selection :6
William V. Holt
reproduction
conservation
cryobiology
spermatozoa
Metrics
H-Index
i10 Index
Citation
69
191
15,180
* Rankings
Ranking Based On Selection :7
Guy Cowlishaw
behavioural ecology
conservation biology
anthropology
Metrics
H-Index
i10 Index
Citation
65
126
16,535
* Rankings
Ranking Based On Selection :8
Trenton WJ Garner
conservation
experimental ecology
herpetology
host/parasite interactions
sexual selection
Metrics
H-Index
i10 Index
Citation
62
136
14,374
* Rankings
Ranking Based On Selection :9
Jinliang Wang
Population Genetics
Conservation Genetics
Molecular Ecology
Metrics
H-Index
i10 Index
Citation
58
114
16,387
* Rankings
Ranking Based On Selection :10
Samuel T. Turvey
conservation biology
Quaternary palaeontology
Metrics
H-Index
i10 Index
Citation
52
151
10,582
* Rankings
Ranking Based On Selection :11
Chris Carbone
Macroecology
Conservation Biology
Urban Ecology
Behaviour
Metrics
H-Index
i10 Index
Citation
51
98
15,633
* Rankings
Ranking Based On Selection :12
Sarah Durant
Conservation science
Ecology
Human Wildlife Coexistence
Conservation Policy
Carnivore Conservation
Metrics
H-Index
i10 Index
Citation
50
88
8,289
* Rankings
Ranking Based On Selection :13
John G Ewen
Recovery of small populations
Metrics
H-Index
i10 Index
Citation
46
122
6,297
* Rankings
Ranking Based On Selection :14
Robin Freeman
Biodiversity
Behaviour
Movement
Collective Behaviour
Machine learning & Prediction
Metrics
H-Index
i10 Index
Citation
44
89
9,108
* Rankings
Ranking Based On Selection :15
Anthony W Sainsbury
disease
translocation
wild animals
conservation
reintroduction
Metrics
H-Index
i10 Index
Citation
33
65
3,389
* Rankings
Ranking Based On Selection :16
Chris Yesson
Habitat suitability modelling
phylogenetics
marine biology
cold water corals
seaweeds
Metrics
H-Index
i10 Index
Citation
31
53
4,192
* Rankings
Ranking Based On Selection :17
Louise Mcrae
Conservation Science
Metrics
H-Index
i10 Index
Citation
29
46
10,169
* Rankings
Ranking Based On Selection :18
David W Redding
Conservation
Biodiversity
Macroecology
Evolution
Disease
Metrics
H-Index
i10 Index
Citation
27
37
6,235
* Rankings
Ranking Based On Selection :19
Tom Bech Letessier
conservation
marine ecosystems
predators
compliance
social ecological systems
Metrics
H-Index
i10 Index
Citation
26
37
1,608
* Rankings
Ranking Based On Selection :20
Gonçalo M. Rosa
Conservation Science
Population Declines
Biodiversity Change
Herpetology
Metrics
H-Index
i10 Index
Citation
21
39
1,958
* Rankings
Ranking Based On Selection :21
Mac Nicoll
Conservation Biology
Population Ecology
Tropical Seabird Ecology
Metrics
H-Index
i10 Index
Citation
21
30
1,628
* Rankings
Ranking Based On Selection :22
Patricia Brekke
conservation
genetics
behavioural ecology
sexual selection
Metrics
H-Index
i10 Index
Citation
20
25
1,341
* Rankings
Ranking Based On Selection :23
Clare Duncan
Conservation Science
Ecosystems
Remote Sensing
Mangroves
Metrics
H-Index
i10 Index
Citation
20
24
1,953
* Rankings
Ranking Based On Selection :25
James Hansford
Palaeoecology
Conservation
Biogeography
Extinction
Metrics
H-Index
i10 Index
Citation
14
17
577
* Rankings
Ranking Based On Selection :26
Frances Clare
Wildlife Disease
Amphibian Conservation
Wildlife Ecology
Population Ecology
Metrics
H-Index
i10 Index
Citation
14
16
1,982
* Rankings
Ranking Based On Selection :27
Adam Piper
fish behaviour
ecohydraulics
fish migration
fish passage
animal tracking telemetry
Metrics
H-Index
i10 Index
Citation
12
13
727
* Rankings
Ranking Based On Selection :28
Catherine Ei Head
zoology
conservation biology
marine biology
coral reef ecology
genetics
Metrics
H-Index
i10 Index
Citation
11
11
432
* Rankings
Ranking Based On Selection :29
Mailys Lopes
remote sensing
image processing
satellite image time series
classification
ecology
Metrics
H-Index
i10 Index
Citation
10
10
782
* Rankings
Ranking Based On Selection :30
Henrike Schulte To Bühne
satellite remote sensing
landscape ecology
climate change
biodiversity
Metrics
H-Index
i10 Index
Citation
10
10
772
* Rankings
Ranking Based On Selection :31
Simon Dures
Ecology
conservation
landscape genetics
landscape ecology
conservation genetics
Metrics
H-Index
i10 Index
Citation
9
9
756
Michael J Williamson
fish behaviour
movement ecology
remote sensing
telemetry
Metrics
H-Index
i10 Index
Citation
9
9
315
Lola Brookes
Animal welfare
amphibians
amphibians diseases
amphibian conservation
laboratory animals
Metrics
H-Index
i10 Index
Citation
9
8
1,015
Heidi Ma
Biodiversity conservation
Community-based Conservation
Evidence-based conservation
China
Social-ecological systems
Metrics
H-Index
i10 Index
Citation
8
7
316
Bethany R. Smith
wildlife conservation science
Metrics
H-Index
i10 Index
Citation
8
6
148
Katharina Seilern-Moy|Katharina Seilern-Moy
Wildlife Health
Wildlife Diseases
Conservation Medicine
Emerging Infectious Diseases
Metrics
H-Index
i10 Index
Citation
8
7
242
Amanda Trask
Population ecology
genetics
conservation biology
Metrics
H-Index
i10 Index
Citation
7
6
182
Daniella Rabaiotti
Biodiversity monitoring
Quantitative Ecology
Spatial Ecology
Behavioural Ecology
Metrics
H-Index
i10 Index
Citation
7
5
281
Caio F Kenup
Conservation Biology
Population Ecology
Reintroduction Biology
Wildlife Management
Metrics
H-Index
i10 Index
Citation
6
4
180
Donal Smith
Threatened species and ecosystem recovery
Metrics
H-Index
i10 Index
Citation
5
5
140
Liam Fitzpatrick
Infectious Disease
Public Health
Wildlife Disease
Conservation Biology
Metrics
H-Index
i10 Index
Citation
5
3
310
Henry Hakkinen
seabirds
conservation
climate change
invasive species
biogeography
Metrics
H-Index
i10 Index
Citation
4
3
77
Tammy Shadbolt
Veterinary medicine and surgery
Veterinary education
Wildlife health and disease
Wildlife conservation
Metrics
H-Index
i10 Index
Citation
4
2
41
William Farren
Spatial Ecology
Ecosystem function
Megafauna
Metrics
H-Index
i10 Index
Citation
1
0
3
Rankings
Ranking Based On Selection: 1
Andrew Cunningham
Metrics
H-Index
i10 Index
Citation Counts
94
293
44,261
conservation biology
disease ecology
emerging infectious diseases
wildlife health
wildlife disease
Rankings
Ranking Based On Selection: 2
Nathalie Pettorelli
Metrics
H-Index
i10 Index
Citation Counts
73
190
26,932
conservation
monitoring
remote sensing
population ecology
spatial analyses
Rankings
Ranking Based On Selection: 3
Marcus Rowcliffe
Metrics
H-Index
i10 Index
Citation Counts
72
152
16,697
Rankings
Ranking Based On Selection: 4
Paul Jepson
Metrics
H-Index
i10 Index
Citation Counts
70
194
18,028
Rankings
Ranking Based On Selection: 5
Rosie Woodroffe
Metrics
H-Index
i10 Index
Citation Counts
69
126
18,292
conservation biology
behavioural ecology
disease ecology
Rankings
Ranking Based On Selection: 6
William V. Holt
Metrics
H-Index
i10 Index
Citation Counts
69
191
15,180
reproduction
conservation
cryobiology
spermatozoa
Rankings
Ranking Based On Selection: 7
Guy Cowlishaw
Metrics
H-Index
i10 Index
Citation Counts
65
126
16,535
behavioural ecology
conservation biology
anthropology
Rankings
Ranking Based On Selection: 8
Trenton WJ Garner
Metrics
H-Index
i10 Index
Citation Counts
62
136
14,374
conservation
experimental ecology
herpetology
host/parasite interactions
sexual selection
Rankings
Ranking Based On Selection: 9
Jinliang Wang
Metrics
H-Index
i10 Index
Citation Counts
58
114
16,387
Population Genetics
Conservation Genetics
Molecular Ecology
Rankings
Ranking Based On Selection: 10
Samuel T. Turvey
Metrics
H-Index
i10 Index
Citation Counts
52
151
10,582
conservation biology
Quaternary palaeontology
Rankings
Ranking Based On Selection: 11
Chris Carbone
Metrics
H-Index
i10 Index
Citation Counts
51
98
15,633
Macroecology
Conservation Biology
Urban Ecology
Behaviour
Rankings
Ranking Based On Selection: 12
Sarah Durant
Metrics
H-Index
i10 Index
Citation Counts
50
88
8,289
Conservation science
Ecology
Human Wildlife Coexistence
Conservation Policy
Carnivore Conservation
Rankings
Ranking Based On Selection: 13
John G Ewen
Metrics
H-Index
i10 Index
Citation Counts
46
122
6,297
Recovery of small populations
Rankings
Ranking Based On Selection: 14
Robin Freeman
Metrics
H-Index
i10 Index
Citation Counts
44
89
9,108
Biodiversity
Behaviour
Movement
Collective Behaviour
Machine learning & Prediction
Rankings
Ranking Based On Selection: 15
Anthony W Sainsbury
Metrics
H-Index
i10 Index
Citation Counts
33
65
3,389
disease
translocation
wild animals
conservation
reintroduction
Rankings
Ranking Based On Selection: 16
Chris Yesson
Metrics
H-Index
i10 Index
Citation Counts
31
53
4,192
Habitat suitability modelling
phylogenetics
marine biology
cold water corals
seaweeds
Rankings
Ranking Based On Selection: 17
Louise Mcrae
Metrics
H-Index
i10 Index
Citation Counts
29
46
10,169
Rankings
Ranking Based On Selection: 18
David W Redding
Metrics
H-Index
i10 Index
Citation Counts
27
37
6,235
Conservation
Biodiversity
Macroecology
Evolution
Disease
Rankings
Ranking Based On Selection: 19
Tom Bech Letessier
Metrics
H-Index
i10 Index
Citation Counts
26
37
1,608
conservation
marine ecosystems
predators
compliance
social ecological systems
Rankings
Ranking Based On Selection: 20
Gonçalo M. Rosa
Metrics
H-Index
i10 Index
Citation Counts
21
39
1,958
Conservation Science
Population Declines
Biodiversity Change
Herpetology
Rankings
Ranking Based On Selection: 21
Mac Nicoll
Metrics
H-Index
i10 Index
Citation Counts
21
30
1,628
Conservation Biology
Population Ecology
Tropical Seabird Ecology
Rankings
Ranking Based On Selection: 22
Patricia Brekke
Metrics
H-Index
i10 Index
Citation Counts
20
25
1,341
conservation
genetics
behavioural ecology
sexual selection
Rankings
Ranking Based On Selection: 23
Clare Duncan
Metrics
H-Index
i10 Index
Citation Counts
20
24
1,953
Conservation Science
Ecosystems
Remote Sensing
Mangroves
Rankings
Ranking Based On Selection: 24
Kevin Peter Hopkins
Metrics
H-Index
i10 Index
Citation Counts
16
22
1,050
Rankings
Ranking Based On Selection: 25
James Hansford
Metrics
H-Index
i10 Index
Citation Counts
14
17
577
Palaeoecology
Conservation
Biogeography
Extinction
Rankings
Ranking Based On Selection: 26
Frances Clare
Metrics
H-Index
i10 Index
Citation Counts
14
16
1,982
Wildlife Disease
Amphibian Conservation
Wildlife Ecology
Population Ecology
Rankings
Ranking Based On Selection: 27
Adam Piper
Metrics
H-Index
i10 Index
Citation Counts
12
13
727
fish behaviour
ecohydraulics
fish migration
fish passage
animal tracking telemetry
Rankings
Ranking Based On Selection: 28
Catherine Ei Head
Metrics
H-Index
i10 Index
Citation Counts
11
11
432
zoology
conservation biology
marine biology
coral reef ecology
genetics
Rankings
Ranking Based On Selection: 29
Mailys Lopes
Metrics
H-Index
i10 Index
Citation Counts
10
10
782
remote sensing
image processing
satellite image time series
classification
ecology
Rankings
Ranking Based On Selection: 30
Henrike Schulte To Bühne
Metrics
H-Index
i10 Index
Citation Counts
10
10
772
satellite remote sensing
landscape ecology
climate change
biodiversity
Rankings
Ranking Based On Selection: 31
Simon Dures
Metrics
H-Index
i10 Index
Citation Counts
9
9
756
Ecology
conservation
landscape genetics
landscape ecology
conservation genetics
Rankings
Ranking Based On Selection: 32
Michael J Williamson
Metrics
H-Index
i10 Index
Citation Counts
9
9
315
fish behaviour
movement ecology
remote sensing
telemetry
Rankings
Ranking Based On Selection: 33
Lola Brookes
Metrics
H-Index
i10 Index
Citation Counts
9
8
1,015
Animal welfare
amphibians
amphibians diseases
amphibian conservation
laboratory animals
Rankings
Ranking Based On Selection: 34
Heidi Ma
Metrics
H-Index
i10 Index
Citation Counts
8
7
316
Biodiversity conservation
Community-based Conservation
Evidence-based conservation
China
Social-ecological systems
Rankings
Ranking Based On Selection: 35
Bethany R. Smith
Metrics
H-Index
i10 Index
Citation Counts
8
6
148
wildlife conservation science
Rankings
Ranking Based On Selection: 36
Claire Collins
Metrics
H-Index
i10 Index
Citation Counts
8
5
204
Rankings
Ranking Based On Selection: 37
Katharina Seilern-Moy|Katharina Seilern-Moy
Metrics
H-Index
i10 Index
Citation Counts
8
7
242
Wildlife Health
Wildlife Diseases
Conservation Medicine
Emerging Infectious Diseases
Rankings
Ranking Based On Selection: 38
Amanda Trask
Metrics
H-Index
i10 Index
Citation Counts
7
6
182
Population ecology
genetics
conservation biology
Rankings
Ranking Based On Selection: 39
Daniella Rabaiotti
Metrics
H-Index
i10 Index
Citation Counts
7
5
281
Biodiversity monitoring
Quantitative Ecology
Spatial Ecology
Behavioural Ecology
Rankings
Ranking Based On Selection: 40
Rosie Williams
Metrics
H-Index
i10 Index
Citation Counts
7
5
162
Rankings
Ranking Based On Selection: 41
Helen O'Neill
Metrics
H-Index
i10 Index
Citation Counts
6
5
362
Rankings
Ranking Based On Selection: 42
Caio F Kenup
Metrics
H-Index
i10 Index
Citation Counts
6
4
180
Conservation Biology
Population Ecology
Reintroduction Biology
Wildlife Management
Rankings
Ranking Based On Selection: 43
Donal Smith
Metrics
H-Index
i10 Index
Citation Counts
5
5
140
Threatened species and ecosystem recovery
Rankings
Ranking Based On Selection: 44
Cally Ham
Metrics
H-Index
i10 Index
Citation Counts
5
3
163
Rankings
Ranking Based On Selection: 45
Liam Fitzpatrick
Metrics
H-Index
i10 Index
Citation Counts
5
3
310
Infectious Disease
Public Health
Wildlife Disease
Conservation Biology
Rankings
Ranking Based On Selection: 46
Henry Hakkinen
Metrics
H-Index
i10 Index
Citation Counts
4
3
77
seabirds
conservation
climate change
invasive species
biogeography
Rankings
Ranking Based On Selection: 47
Tammy Shadbolt
Metrics
H-Index
i10 Index
Citation Counts
4
2
41
Veterinary medicine and surgery
Veterinary education
Wildlife health and disease
Wildlife conservation
Rankings
Ranking Based On Selection: 48
Bryony Allen
Metrics
H-Index
i10 Index
Citation Counts
3
3
164
Rankings
Ranking Based On Selection: 49
Sophie Common
Metrics
H-Index
i10 Index
Citation Counts
2
1
19
Wildlife health
wildlife disease
veterinary medicine
Rankings
Ranking Based On Selection: 50
William Farren
Metrics
H-Index
i10 Index
Citation Counts
1
0
3
Spatial Ecology
Ecosystem function
Megafauna