Citation Rankings
Highly Cited Researchers

Natural Sciences / Biological Science Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
United States
Hanqin Tian
Earth System Science
Biogeochemical Cycles
Ecosystem Modeling
Climate & Sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,760
40,357
0.699
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
United States
David Held
entomology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,254
11,539
0.476
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
United States
Luz De Bashan
Environmental biotechnology
soil microbiology
algal biotechnology
plant-bacteria interaction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,978
9,370
0.469
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
United States
Kenneth M Halanych
Invertebrates
Marine genomics
Systematics
Antarctica
Deep Sea biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,065
6,000
0.398
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
United States
Gabriel C Costa
Biogeography
Macroecology
Spatial Ecology
Conservation
Herpetology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,409
4,676
0.631
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
United States
Jason W Upton
Host-pathogen interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,047
4,609
0.573
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
United States
Alan E Wilson
community ecology
limnology
harmful algal blooms
drinking water
meta-analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,258
4,606
0.635
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
United States
Mark Liles
Biology
Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,268
4,489
0.398
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
United States
Scott R Santos
Anchialine Ecosystem
Biocomputing
Marine Ecology
Molecular Ecology
Symbiosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,820
3,926
0.445
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
United States
Narendra K Singh
plant stress response
vaccines against poultry viruses
transformation of higher fungi
stress response in fungi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,665
3,858
0.331
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
United States
Heather Alexander
ecology
fire
carbon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,457
3,487
0.782
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
United States
F Stephen Dobson
behavior
ecology
evolution
conservation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,260
3,205
0.312
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
United States
Perry Lee Wood Jr
Conservation
Evolution
Herpetology
Southeast Asia
Systematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,790
3,021
0.631
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
United States
Geoff Williams
ecology
parasitology
eco-toxicology
entomology
apiculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,593
2,943
0.641
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
United States
Daniel Warner
Evolutionary Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,179
2,614
0.505
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
United States
Jack Feminella
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,101
2,593
0.320
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
United States
Brian Counterman
evolution
development
genomics
speciation
adaptation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,676
2,561
0.548
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
United States
Cissy Ballen
biology education research
biology education
discipline-based education research
science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,802
2,559
0.913
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
United States
Robert S Boyd
Ecology of metal hyperaccumulation
Plant conservation
Plant-Animal interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,996
2,372
0.339
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
United States
Michael Wooten
Population Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,619
2,365
0.512
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
United States
Katherine Buckley
Immunology
Evolution
Genomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,465
2,190
0.401
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
United States
Stephen Ditchkoff
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,276
2,186
0.511
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
United States
Graeme Lockaby
Wetlands
biogeochemistry
water quality
environmental health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,704
2,087
0.311
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
United States
Christopher Anderson
Wetland Ecology
Urban Ecology
Watershed Management
Coastal Wetlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,958
1,989
0.503
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
United States
Nanette Chadwick
Coral reef ecology
cnidarian ecophysiology and behavior
symbioses
population dynamics
conservation biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,650
1,514
0.326
* Last 6 Years Citation Counts Rankings
Rankings
4,309
United States
1,740
1
Ranking Based On Selection: 1
Hanqin Tian
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,760
40,357
0.699
Earth System Science
Biogeochemical Cycles
Ecosystem Modeling
Climate & Sustainability
* Last 6 Years Citation Counts Rankings
Rankings
29,373
United States
11,529
14
Ranking Based On Selection: 2
David Held
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,254
11,539
0.476
* Last 6 Years Citation Counts Rankings
Rankings
40,103
United States
15,577
18
Ranking Based On Selection: 3
Luz De Bashan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,978
9,370
0.469
Environmental biotechnology
soil microbiology
algal biotechnology
plant-bacteria interaction
* Last 6 Years Citation Counts Rankings
Rankings
74,529
United States
27,720
40
Ranking Based On Selection: 4
Kenneth M Halanych
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,065
6,000
0.398
Invertebrates
Marine genomics
Systematics
Antarctica
Deep Sea biology
* Last 6 Years Citation Counts Rankings
Rankings
102,342
United States
37,035
1
Ranking Based On Selection: 5
Gabriel C Costa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,409
4,676
0.631
Biogeography
Macroecology
Spatial Ecology
Conservation
Herpetology
* Last 6 Years Citation Counts Rankings
Rankings
104,231
United States
37,632
51
Ranking Based On Selection: 6
Jason W Upton
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,047
4,609
0.573
* Last 6 Years Citation Counts Rankings
Rankings
104,334
United States
37,667
53
Ranking Based On Selection: 7
Alan E Wilson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,258
4,606
0.635
community ecology
limnology
harmful algal blooms
drinking water
meta-analysis
* Last 6 Years Citation Counts Rankings
Rankings
107,698
United States
38,807
56
Ranking Based On Selection: 8
Mark Liles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,268
4,489
0.398
* Last 6 Years Citation Counts Rankings
Rankings
126,523
United States
44,804
65
Ranking Based On Selection: 9
Scott R Santos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,820
3,926
0.445
Anchialine Ecosystem
Biocomputing
Marine Ecology
Molecular Ecology
Symbiosis
* Last 6 Years Citation Counts Rankings
Rankings
129,086
United States
45,600
70
Ranking Based On Selection: 10
Narendra K Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,665
3,858
0.331
plant stress response
vaccines against poultry viruses
transformation of higher fungi
stress response in fungi
* Last 6 Years Citation Counts Rankings
Rankings
145,463
United States
50,750
83
Ranking Based On Selection: 11
Heather Alexander
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,457
3,487
0.782
* Last 6 Years Citation Counts Rankings
Rankings
160,161
United States
55,235
92
Ranking Based On Selection: 12
F Stephen Dobson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,260
3,205
0.312
* Last 6 Years Citation Counts Rankings
Rankings
171,111
United States
58,524
95
Ranking Based On Selection: 13
Perry Lee Wood Jr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,790
3,021
0.631
Conservation
Evolution
Herpetology
Southeast Asia
Systematics
* Last 6 Years Citation Counts Rankings
Rankings
176,160
United States
60,067
98
Ranking Based On Selection: 14
Geoff Williams
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,593
2,943
0.641
ecology
parasitology
eco-toxicology
entomology
apiculture
* Last 6 Years Citation Counts Rankings
Rankings
200,349
United States
67,360
118
Ranking Based On Selection: 15
Daniel Warner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,179
2,614
0.505
* Last 6 Years Citation Counts Rankings
Rankings
202,037
United States
67,887
119
Ranking Based On Selection: 16
Jack Feminella
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,101
2,593
0.320
* Last 6 Years Citation Counts Rankings
Rankings
204,820
United States
68,719
122
Ranking Based On Selection: 17
Brian Counterman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,676
2,561
0.548
evolution
development
genomics
speciation
adaptation
* Last 6 Years Citation Counts Rankings
Rankings
205,020
United States
68,791
123
Ranking Based On Selection: 18
Cissy Ballen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,802
2,559
0.913
biology education research
biology education
discipline-based education research
science
* Last 6 Years Citation Counts Rankings
Rankings
221,948
United States
73,822
135
Ranking Based On Selection: 19
Robert S Boyd
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,996
2,372
0.339
Ecology of metal hyperaccumulation
Plant conservation
Plant-Animal interactions
* Last 6 Years Citation Counts Rankings
Rankings
222,641
United States
74,030
136
Ranking Based On Selection: 20
Michael Wooten
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,619
2,365
0.512
* Last 6 Years Citation Counts Rankings
Rankings
240,724
United States
79,288
147
Ranking Based On Selection: 21
Katherine Buckley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,465
2,190
0.401
* Last 6 Years Citation Counts Rankings
Rankings
241,176
United States
79,427
148
Ranking Based On Selection: 22
Stephen Ditchkoff
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,276
2,186
0.511
* Last 6 Years Citation Counts Rankings
Rankings
252,771
United States
82,842
155
Ranking Based On Selection: 23
Graeme Lockaby
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,704
2,087
0.311
Wetlands
biogeochemistry
water quality
environmental health
* Last 6 Years Citation Counts Rankings
Rankings
265,068
United States
86,370
164
Ranking Based On Selection: 24
Christopher Anderson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,958
1,989
0.503
Wetland Ecology
Urban Ecology
Watershed Management
Coastal Wetlands
* Last 6 Years Citation Counts Rankings
Rankings
341,641
United States
108,080
220
Ranking Based On Selection: 25
Nanette Chadwick
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,650
1,514
0.326
Coral reef ecology
cnidarian ecophysiology and behavior
symbioses
population dynamics
conservation biology