World Scientist and University Rankings 2025

Canada Natural Sciences / Biological Science 1.914 Scientists Subject Rankings - 2025

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 yearsAs of Jan 31, 2025, the rankings are determined according to the Total H IndexBETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].

* Total H IndexRankings
Ranking Based On Selection: 1
John Giesy
Ecotoxicology
Environmental Chemistry
Aquatic Toxicology
Ecology
Environmental Toxicology
Metrics
H-Index
i10 Index
Citation Counts
147
1,126
101,106
* Total H IndexRankings
Ranking Based On Selection: 2
Lei Li
systems biology
Metrics
H-Index
i10 Index
Citation Counts
144
1,560
109,922
* Total H IndexRankings
Ranking Based On Selection: 3
Paul Dn Hebert
Biodiversity Science
Evolution
Genetics
Ecology
DNA barcoding
Metrics
H-Index
i10 Index
Citation Counts
139
521
115,354
* Total H IndexRankings
Ranking Based On Selection: 4
Pierre Legendre
ecology
community ecology
beta diversity
phylogenetic analysis
multivariate statistics
Metrics
H-Index
i10 Index
Citation Counts
129
419
195,272
* Total H IndexRankings
Ranking Based On Selection: 5
Louis Bernatchez
Conservation genetics
evolutionary biology
population genetics
molecular ecology
Metrics
H-Index
i10 Index
Citation Counts
129
502
53,271
* Total H IndexRankings
Ranking Based On Selection: 6
Loren Rieseberg
Evolutionary Biology
Evolution
Plant Evolution
Plant Biology
Evolutionary Genetics
Metrics
H-Index
i10 Index
Citation Counts
126
383
62,103
* Total H IndexRankings
Ranking Based On Selection: 7
Bernard R Glick
Plant-bacteria interaction
Molecular biotechnology
Ethylene
Microbiology
Metrics
H-Index
i10 Index
Citation Counts
124
333
81,663
* Total H IndexRankings
Ranking Based On Selection: 8
Anne-Claude Gingras
Proteomics
signal transduction
cancer biology
Metrics
H-Index
i10 Index
Citation Counts
117
315
63,122
* Total H IndexRankings
Ranking Based On Selection: 9
Julian Davies
Origin and evolution of antibiotic resistance genes
especially integron-associated determinants
Antibiotic biosynthesis
Metrics
H-Index
i10 Index
Citation Counts
116
408
77,567
* Total H IndexRankings
Ranking Based On Selection: 10
Spencer Ch Barrett
Evolutionary biology
Evolutionary genetics
Evolutionary ecology
Plant reproduction
Metrics
H-Index
i10 Index
Citation Counts
115
352
49,709

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H IndexRankings
Ranking Based On Selection: 11
Stephen L Archer
Mitochondrial Dynamics
Oxygen Sensing
Epigenetic
Pulmonary Hypertension and Right Ventricle
Metrics
H-Index
i10 Index
Citation Counts
114
295
56,177
* Total H IndexRankings
Ranking Based On Selection: 13
Lenore Fahrig
landscape ecology
conservation biology
ecology
road ecology
Metrics
H-Index
i10 Index
Citation Counts
110
247
69,937
* Total H IndexRankings
Ranking Based On Selection: 14
DW Schindler
limnology
biogeochemistry
aquatic sciences
aquatic ecology
boreal ecology
Metrics
H-Index
i10 Index
Citation Counts
107
253
59,988
* Total H IndexRankings
Ranking Based On Selection: 15
Claire Kremen
conservation biology
agroecology
Metrics
H-Index
i10 Index
Citation Counts
102
188
81,443
* Total H IndexRankings
Ranking Based On Selection: 16
Mark S Boyce
ecology
wildlife management
population dynamics
modelling
Metrics
H-Index
i10 Index
Citation Counts
101
283
44,654
* Total H IndexRankings
Ranking Based On Selection: 17
Dolph Schluter
Evolution
Ecology
Genetics
Metrics
H-Index
i10 Index
Citation Counts
101
193
59,777
* Total H IndexRankings
Ranking Based On Selection: 18
Patrick Keeling
evolution
microbiology
protists
Metrics
H-Index
i10 Index
Citation Counts
101
370
38,982
* Total H IndexRankings
Ranking Based On Selection: 19
Hervé Philippe
Evolution
Phylogenomics
Phylogenetics
Bioinformatics
Metrics
H-Index
i10 Index
Citation Counts
101
183
40,398
* Total H IndexRankings
Ranking Based On Selection: 20
Guy G Poirier
Biologie
Metrics
H-Index
i10 Index
Citation Counts
101
289
51,314
* Total H IndexRankings
Ranking Based On Selection: 21
Andrew Hendry
evolutionary ecology
evolution
ecology
conservation
Metrics
H-Index
i10 Index
Citation Counts
99
239
35,355
* Total H IndexRankings
Ranking Based On Selection: 22
Stan Boutin
KRSP
population ecology
red squirrels
caribou
predator-prey...
Metrics
H-Index
i10 Index
Citation Counts
99
340
36,145
* Total H IndexRankings
Ranking Based On Selection: 23
David Y Thomas
life sciences
Metrics
H-Index
i10 Index
Citation Counts
99
239
29,702
* Total H IndexRankings
Ranking Based On Selection: 24
W Ford Doolittle
Evolution
genomics
microbiology
philosophy
Metrics
H-Index
i10 Index
Citation Counts
98
288
42,756
* Total H IndexRankings
Ranking Based On Selection: 25
Hal Whitehead
Deep water whales
social structure
culture
Metrics
H-Index
i10 Index
Citation Counts
97
273
32,850
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
John Giesy
Metrics
H-Index
i10-Index
Citation Counts
147
1,126
101,106
Ecotoxicology
Environmental Chemistry
Aquatic Toxicology
Ecology
Environmental Toxicology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Lei Li
Metrics
H-Index
i10-Index
Citation Counts
144
1,560
109,922
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Paul Dn Hebert
Metrics
H-Index
i10-Index
Citation Counts
139
521
115,354
Biodiversity Science
Evolution
Genetics
Ecology
DNA barcoding
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Pierre Legendre
Metrics
H-Index
i10-Index
Citation Counts
129
419
195,272
ecology
community ecology
beta diversity
phylogenetic analysis
multivariate statistics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Louis Bernatchez
Metrics
H-Index
i10-Index
Citation Counts
129
502
53,271
Conservation genetics
evolutionary biology
population genetics
molecular ecology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Loren Rieseberg
Metrics
H-Index
i10-Index
Citation Counts
126
383
62,103
Evolutionary Biology
Evolution
Plant Evolution
Plant Biology
Evolutionary Genetics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Bernard R Glick
Metrics
H-Index
i10-Index
Citation Counts
124
333
81,663
Plant-bacteria interaction
Molecular biotechnology
Ethylene
Microbiology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Anne-Claude Gingras
Metrics
H-Index
i10-Index
Citation Counts
117
315
63,122
Proteomics
signal transduction
cancer biology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Julian Davies
Metrics
H-Index
i10-Index
Citation Counts
116
408
77,567
Origin and evolution of antibiotic resistance genes
especially integron-associated determinants
Antibiotic biosynthesis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Spencer Ch Barrett
Metrics
H-Index
i10-Index
Citation Counts
115
352
49,709
Evolutionary biology
Evolutionary genetics
Evolutionary ecology
Plant reproduction

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Stephen L Archer
Metrics
H-Index
i10-Index
Citation Counts
114
295
56,177
Mitochondrial Dynamics
Oxygen Sensing
Epigenetic
Pulmonary Hypertension and Right Ventricle
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Yves Bergeron
Metrics
H-Index
i10-Index
Citation Counts
112
597
45,208
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Lenore Fahrig
Metrics
H-Index
i10-Index
Citation Counts
110
247
69,937
landscape ecology
conservation biology
ecology
road ecology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
DW Schindler
Metrics
H-Index
i10-Index
Citation Counts
107
253
59,988
limnology
biogeochemistry
aquatic sciences
aquatic ecology
boreal ecology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Claire Kremen
Metrics
H-Index
i10-Index
Citation Counts
102
188
81,443
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Mark S Boyce
Metrics
H-Index
i10-Index
Citation Counts
101
283
44,654
ecology
wildlife management
population dynamics
modelling
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Dolph Schluter
Metrics
H-Index
i10-Index
Citation Counts
101
193
59,777
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Patrick Keeling
Metrics
H-Index
i10-Index
Citation Counts
101
370
38,982
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Hervé Philippe
Metrics
H-Index
i10-Index
Citation Counts
101
183
40,398
Evolution
Phylogenomics
Phylogenetics
Bioinformatics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Guy G Poirier
Metrics
H-Index
i10-Index
Citation Counts
101
289
51,314
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Andrew Hendry
Metrics
H-Index
i10-Index
Citation Counts
99
239
35,355
evolutionary ecology
evolution
ecology
conservation
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Stan Boutin
Metrics
H-Index
i10-Index
Citation Counts
99
340
36,145
KRSP
population ecology
red squirrels
caribou
predator-prey...
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
David Y Thomas
Metrics
H-Index
i10-Index
Citation Counts
99
239
29,702
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
W Ford Doolittle
Metrics
H-Index
i10-Index
Citation Counts
98
288
42,756
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Hal Whitehead
Metrics
H-Index
i10-Index
Citation Counts
97
273
32,850