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" (873,864 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
Peter B Adler
community ecology
population ecology
theory
climate change
global change
Metrics
H-Index
i10 Index
Citation
68
151
26,354
* Rankings
Ranking Based On Selection :2
Charles P Hawkins
freshwater ecology
water quality
biodiversity
environmental assessment
Metrics
H-Index
i10 Index
Citation
67
119
16,510
* Rankings
Ranking Based On Selection :3
Johan T Du Toit
Large mammal ecology
conservation ecology
terrestrial ecosystem ecology
Metrics
H-Index
i10 Index
Citation
57
114
11,586
* Rankings
Ranking Based On Selection :4
Juan Villalba
Foraging Behavior
Diet Selection
Self-Medication
Behavioral Ecology
Metrics
H-Index
i10 Index
Citation
52
126
8,031
* Rankings
Ranking Based On Selection :5
Wayne A Wurtsbaugh
Limnology
fish ecology
aquatic ecology
saline lakes
pollution
Metrics
H-Index
i10 Index
Citation
47
103
8,877
Karen H Beard
Global Change Ecology
Community Ecology
Conservation Ecology
Metrics
H-Index
i10 Index
Citation
44
104
13,039
John M Stark
biogeochemistry
microbial ecology
soil science
Metrics
H-Index
i10 Index
Citation
44
70
12,919
Christopher Monz
Recreation Ecology
Protected Area Management
Outdoor Recreation
Alpine Ecology
Arctic Ecology
Metrics
H-Index
i10 Index
Citation
39
77
6,692
* Rankings
Ranking Based On Selection :10
Tal Avgar
Behavioral Ecology
Wildlife Biology
Biometry
Conservation
Metrics
H-Index
i10 Index
Citation
35
51
5,984
* Rankings
Ranking Based On Selection :13
Andrew Kulmatiski
soil ecology
ecohydrology
soils
plant soil feedbacks
plant community ecology
Metrics
H-Index
i10 Index
Citation
33
57
7,082
* Rankings
Ranking Based On Selection :14
Karin Kettenring
wetland ecology
plant ecology
seed ecology
invasion ecology
restoration ecology
Metrics
H-Index
i10 Index
Citation
33
59
3,948
* Rankings
Ranking Based On Selection :16
Michelle A Baker
Ecology
Biogeochemistry
Streams and Rivers
Limnology
Hydrology
Metrics
H-Index
i10 Index
Citation
32
49
4,319
* Rankings
Ranking Based On Selection :18
Carol D Von Dohlen
Evolutionary biology
insect systematics
insect symbioses
Metrics
H-Index
i10 Index
Citation
31
59
5,294
* Rankings
Ranking Based On Selection :23
Joseph S Wilson
Evolutionary Ecology
Evolution
Biogeography
Conservation
insects
Metrics
H-Index
i10 Index
Citation
27
45
2,265
İrina Polejaeva
Developmental biology
transgenic animal models
Metrics
H-Index
i10 Index
Citation
25
43
6,142
Robert Schmidt
wildlife management
wildlife policy
human dimensions
Metrics
H-Index
i10 Index
Citation
25
37
2,307
Kezia Manlove
Disease ecology
quantitative ecology
ecological statistics
Metrics
H-Index
i10 Index
Citation
22
29
1,826
David K Dahlgren
Wildlife and Rangeland Habitat Management
Human-Wildlife Interactions
Upland Game Ecology and
Metrics
H-Index
i10 Index
Citation
22
35
1,689
James A Gessaman
bioenergetics
animal ecophysiology
thermoregulation
Metrics
H-Index
i10 Index
Citation
22
44
2,244
Brian J Smith
Quantitative Ecology
Spatial Ecology
Movement Ecology
Population Ecology
Metrics
H-Index
i10 Index
Citation
21
31
1,301
Alan H Savitzky
herpetology
evolutionary morphology
chemical ecology
Metrics
H-Index
i10 Index
Citation
21
33
3,542
Sarah C Klain
Ecological Economics
Conservation Biology
Risk Perception
Decision-Making
Environmental Policy
Metrics
H-Index
i10 Index
Citation
20
24
8,875
Paul C Rogers
biogeography
aspen ecology
disturbance
lichens
vegetation monitoring
Metrics
H-Index
i10 Index
Citation
20
30
1,570
Tucker J Furniss
Landscape Ecology
Fire
Temperate Forests
Tree Mortality
Spatial Patterns
Metrics
H-Index
i10 Index
Citation
17
21
1,803
Bryan M Kluever
Wildlife Ecology
Wildlife Management
Conservation Biology
Animal Behavior
Human Wildlife Conflict
Metrics
H-Index
i10 Index
Citation
17
22
822
Casey A Pennock
Fish Biology
Aquatic Ecology
Fish Conservation
Metrics
H-Index
i10 Index
Citation
16
21
638
Justin Jones
materials science
biomaterials
spider silk
silk
thread keratins
Metrics
H-Index
i10 Index
Citation
16
20
1,248
David C Stoner
ungulate and carnivore ecology
biogeography
conservation biology
wildlife
Metrics
H-Index
i10 Index
Citation
16
23
1,014
William W Macfarlane
Ecological Restoration
Disturbance Ecology
Riparian Area Mapping
Fluvial Geomorpholgy
Whitebark Pine
Metrics
H-Index
i10 Index
Citation
16
17
1,228
Eric Thacker
Rangelands
Shrub Ecology
Habitat
Grazing
Fire
Metrics
H-Index
i10 Index
Citation
15
24
816
Scott A Bernhardt
Entomology
Population Genetics
Infectious Disease
Metrics
H-Index
i10 Index
Citation
13
17
700
Alexander J Hernandez
Remote Sensing
Ecology
Forest Disturbance
Watershed Dynamics
Metrics
H-Index
i10 Index
Citation
10
12
564
Mark Chynoweth
Conservation Biology
Wildlife Ecology
Geographic Information Systems
Metrics
H-Index
i10 Index
Citation
10
10
510
Sunshine Brosi
Botany
Restoration Ecology
Wildlife Ecology
Fire Ecology
Forest Ecology
Metrics
H-Index
i10 Index
Citation
7
6
316
Yalemi Morales
Enzymology
Structural Biology
RNA surveillance
Metrics
H-Index
i10 Index
Citation
6
5
328
Emily E Virgin
physiological ecology
conservation physiology
herpetology
Metrics
H-Index
i10 Index
Citation
6
5
231
Soren Struckman
ecology
forestry
conservation
statistics
population biology
Metrics
H-Index
i10 Index
Citation
5
4
97
Jessica G Murray
ecology
soil ecology
canopy biology
tropical ecology
Metrics
H-Index
i10 Index
Citation
5
3
129
Kathryn M Weglarz
Evolution
Ecology
Entomology
Discipline-based Educational Research
Biodiversity
Metrics
H-Index
i10 Index
Citation
4
4
88
Gbolahan Anthony Reis
Ecology Evolutionary biology Entomology Climate Adaptation
Metrics
H-Index
i10 Index
Citation
2
0
5
Rankings
Ranking Based On Selection: 1
Peter B Adler
Metrics
H-Index
i10 Index
Citation Counts
68
151
26,354
community ecology
population ecology
theory
climate change
global change
Rankings
Ranking Based On Selection: 2
Charles P Hawkins
Metrics
H-Index
i10 Index
Citation Counts
67
119
16,510
freshwater ecology
water quality
biodiversity
environmental assessment
Rankings
Ranking Based On Selection: 3
Johan T Du Toit
Metrics
H-Index
i10 Index
Citation Counts
57
114
11,586
Large mammal ecology
conservation ecology
terrestrial ecosystem ecology
Rankings
Ranking Based On Selection: 4
Juan Villalba
Metrics
H-Index
i10 Index
Citation Counts
52
126
8,031
Foraging Behavior
Diet Selection
Self-Medication
Behavioral Ecology
Rankings
Ranking Based On Selection: 5
Wayne A Wurtsbaugh
Metrics
H-Index
i10 Index
Citation Counts
47
103
8,877
Limnology
fish ecology
aquatic ecology
saline lakes
pollution
Rankings
Ranking Based On Selection: 6
Karen H Beard
Metrics
H-Index
i10 Index
Citation Counts
44
104
13,039
Global Change Ecology
Community Ecology
Conservation Ecology
Rankings
Ranking Based On Selection: 7
John M Stark
Metrics
H-Index
i10 Index
Citation Counts
44
70
12,919
biogeochemistry
microbial ecology
soil science
Rankings
Ranking Based On Selection: 8
Christopher Monz
Metrics
H-Index
i10 Index
Citation Counts
39
77
6,692
Recreation Ecology
Protected Area Management
Outdoor Recreation
Alpine Ecology
Arctic Ecology
Rankings
Ranking Based On Selection: 9
Frank Messina
Metrics
H-Index
i10 Index
Citation Counts
37
80
4,132
Rankings
Ranking Based On Selection: 10
Tal Avgar
Metrics
H-Index
i10 Index
Citation Counts
35
51
5,984
Behavioral Ecology
Wildlife Biology
Biometry
Conservation
Rankings
Ranking Based On Selection: 11
Nancy Huntly
Metrics
H-Index
i10 Index
Citation Counts
35
49
7,971
Rankings
Ranking Based On Selection: 12
Phaedra Budy
Metrics
H-Index
i10 Index
Citation Counts
34
95
4,356
Rankings
Ranking Based On Selection: 13
Andrew Kulmatiski
Metrics
H-Index
i10 Index
Citation Counts
33
57
7,082
soil ecology
ecohydrology
soils
plant soil feedbacks
plant community ecology
Rankings
Ranking Based On Selection: 14
Karin Kettenring
Metrics
H-Index
i10 Index
Citation Counts
33
59
3,948
wetland ecology
plant ecology
seed ecology
invasion ecology
restoration ecology
Rankings
Ranking Based On Selection: 15
Mary Conner
Metrics
H-Index
i10 Index
Citation Counts
33
58
3,947
Rankings
Ranking Based On Selection: 16
Michelle A Baker
Metrics
H-Index
i10 Index
Citation Counts
32
49
4,319
Ecology
Biogeochemistry
Streams and Rivers
Limnology
Hydrology
Rankings
Ranking Based On Selection: 17
Trisha Atwood
Metrics
H-Index
i10 Index
Citation Counts
31
48
5,949
Rankings
Ranking Based On Selection: 18
Carol D Von Dohlen
Metrics
H-Index
i10 Index
Citation Counts
31
59
5,294
Evolutionary biology
insect systematics
insect symbioses
Rankings
Ranking Based On Selection: 19
RD Ramsey
Metrics
H-Index
i10 Index
Citation Counts
29
57
3,395
Rankings
Ranking Based On Selection: 20
Julie K Young
Metrics
H-Index
i10 Index
Citation Counts
28
70
3,942
Rankings
Ranking Based On Selection: 21
Paul G Johnson
Metrics
H-Index
i10 Index
Citation Counts
28
72
3,369
Rankings
Ranking Based On Selection: 22
Karen M Kapheim
Metrics
H-Index
i10 Index
Citation Counts
27
41
2,501
Rankings
Ranking Based On Selection: 23
Joseph S Wilson
Metrics
H-Index
i10 Index
Citation Counts
27
45
2,265
Evolutionary Ecology
Evolution
Biogeography
Conservation
insects
Rankings
Ranking Based On Selection: 24
James P Pitts
Metrics
H-Index
i10 Index
Citation Counts
25
60
2,738
Rankings
Ranking Based On Selection: 25
İrina Polejaeva
Metrics
H-Index
i10 Index
Citation Counts
25
43
6,142
Developmental biology
transgenic animal models
Rankings
Ranking Based On Selection: 26
Robert Schmidt
Metrics
H-Index
i10 Index
Citation Counts
25
37
2,307
wildlife management
wildlife policy
human dimensions
Rankings
Ranking Based On Selection: 27
Kezia Manlove
Metrics
H-Index
i10 Index
Citation Counts
22
29
1,826
Disease ecology
quantitative ecology
ecological statistics
Rankings
Ranking Based On Selection: 28
David K Dahlgren
Metrics
H-Index
i10 Index
Citation Counts
22
35
1,689
Wildlife and Rangeland Habitat Management
Human-Wildlife Interactions
Upland Game Ecology and
Rankings
Ranking Based On Selection: 29
James A Gessaman
Metrics
H-Index
i10 Index
Citation Counts
22
44
2,244
bioenergetics
animal ecophysiology
thermoregulation
Rankings
Ranking Based On Selection: 30
Brian J Smith
Metrics
H-Index
i10 Index
Citation Counts
21
31
1,301
Quantitative Ecology
Spatial Ecology
Movement Ecology
Population Ecology
Rankings
Ranking Based On Selection: 31
Erin N Bobeck
Metrics
H-Index
i10 Index
Citation Counts
21
27
1,214
Rankings
Ranking Based On Selection: 32
Alan H Savitzky
Metrics
H-Index
i10 Index
Citation Counts
21
33
3,542
herpetology
evolutionary morphology
chemical ecology
Rankings
Ranking Based On Selection: 33
Sarah C Klain
Metrics
H-Index
i10 Index
Citation Counts
20
24
8,875
Ecological Economics
Conservation Biology
Risk Perception
Decision-Making
Environmental Policy
Rankings
Ranking Based On Selection: 34
Charles Hanifin
Metrics
H-Index
i10 Index
Citation Counts
20
23
1,597
Rankings
Ranking Based On Selection: 35
Paul C Rogers
Metrics
H-Index
i10 Index
Citation Counts
20
30
1,570
biogeography
aspen ecology
disturbance
lichens
vegetation monitoring
Rankings
Ranking Based On Selection: 36
Tucker J Furniss
Metrics
H-Index
i10 Index
Citation Counts
17
21
1,803
Landscape Ecology
Fire
Temperate Forests
Tree Mortality
Spatial Patterns
Rankings
Ranking Based On Selection: 37
Bryan M Kluever
Metrics
H-Index
i10 Index
Citation Counts
17
22
822
Wildlife Ecology
Wildlife Management
Conservation Biology
Animal Behavior
Human Wildlife Conflict
Rankings
Ranking Based On Selection: 38
Norah P Saarman
Metrics
H-Index
i10 Index
Citation Counts
16
23
704
Rankings
Ranking Based On Selection: 39
Casey A Pennock
Metrics
H-Index
i10 Index
Citation Counts
16
21
638
Fish Biology
Aquatic Ecology
Fish Conservation
Rankings
Ranking Based On Selection: 40
Justin Jones
Metrics
H-Index
i10 Index
Citation Counts
16
20
1,248
materials science
biomaterials
spider silk
silk
thread keratins
Rankings
Ranking Based On Selection: 41
David C Stoner
Metrics
H-Index
i10 Index
Citation Counts
16
23
1,014
ungulate and carnivore ecology
biogeography
conservation biology
wildlife
Rankings
Ranking Based On Selection: 42
William W Macfarlane
Metrics
H-Index
i10 Index
Citation Counts
16
17
1,228
Ecological Restoration
Disturbance Ecology
Riparian Area Mapping
Fluvial Geomorpholgy
Whitebark Pine
Rankings
Ranking Based On Selection: 43
Scott Miller
Metrics
H-Index
i10 Index
Citation Counts
15
17
1,728
Rankings
Ranking Based On Selection: 44
Eric Thacker
Metrics
H-Index
i10 Index
Citation Counts
15
24
816
Rangelands
Shrub Ecology
Habitat
Grazing
Fire
Rankings
Ranking Based On Selection: 45
Megan K Nasto
Metrics
H-Index
i10 Index
Citation Counts
14
14
801
Rankings
Ranking Based On Selection: 46
SN Frey
Metrics
H-Index
i10 Index
Citation Counts
14
16
946
Rankings
Ranking Based On Selection: 47
Scott A Bernhardt
Metrics
H-Index
i10 Index
Citation Counts
13
17
700
Entomology
Population Genetics
Infectious Disease
Rankings
Ranking Based On Selection: 48
Alexander J Hernandez
Metrics
H-Index
i10 Index
Citation Counts
10
12
564
Remote Sensing
Ecology
Forest Disturbance
Watershed Dynamics
Rankings
Ranking Based On Selection: 49
Mark Chynoweth
Metrics
H-Index
i10 Index
Citation Counts
10
10
510
Conservation Biology
Wildlife Ecology
Geographic Information Systems
Rankings
Ranking Based On Selection: 50
Colleen P Jones
Metrics
H-Index
i10 Index
Citation Counts
7
7
413
Ecology
Biogeochemistry
Environmental Sceince
Rankings
Ranking Based On Selection: 51
Mitchell Parsons
Metrics
H-Index
i10 Index
Citation Counts
7
6
239
Rankings
Ranking Based On Selection: 52
Sunshine Brosi
Metrics
H-Index
i10 Index
Citation Counts
7
6
316
Botany
Restoration Ecology
Wildlife Ecology
Fire Ecology
Forest Ecology
Rankings
Ranking Based On Selection: 53
Yalemi Morales
Metrics
H-Index
i10 Index
Citation Counts
6
5
328
Enzymology
Structural Biology
RNA surveillance
Rankings
Ranking Based On Selection: 54
Emily E Virgin
Metrics
H-Index
i10 Index
Citation Counts
6
5
231
physiological ecology
conservation physiology
herpetology
Rankings
Ranking Based On Selection: 55
Soren Struckman
Metrics
H-Index
i10 Index
Citation Counts
5
4
97
ecology
forestry
conservation
statistics
population biology
Rankings
Ranking Based On Selection: 56
Jessica G Murray
Metrics
H-Index
i10 Index
Citation Counts
5
3
129
ecology
soil ecology
canopy biology
tropical ecology
Rankings
Ranking Based On Selection: 57
Kathryn M Weglarz
Metrics
H-Index
i10 Index
Citation Counts
4
4
88
Evolution
Ecology
Entomology
Discipline-based Educational Research
Biodiversity
Rankings
Ranking Based On Selection: 58
Gbolahan Anthony Reis
Metrics
H-Index
i10 Index
Citation Counts
2
0
5
Ecology Evolutionary biology Entomology Climate Adaptation
Rankings
Ranking Based On Selection: 59
Jesse D Walker
Metrics
H-Index
i10 Index
Citation Counts
1
1
20
Rankings
Ranking Based On Selection: 60
Jorge E Lopez-Perez
Metrics
H-Index
i10 Index
Citation Counts
1
1
12