Citation Rankings
Highly Cited Researchers

University of Tennessee Knoxville Highly Cited Researchers CitationNatural Sciences / Biological Science Rankings 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.

* Total Citation Counts Rankings
Ranking Based On Selection :1
United States
Daniel Simberloff
Conservation Biology
Ecology
Invasion Biology
Biogeography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
107,907
28,610
0.265
* Total Citation Counts Rankings
Ranking Based On Selection :2
United States
Richard Norby
global change
ecology
forestry
carbon dioxide
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,421
12,457
0.342
* Total Citation Counts Rankings
Ranking Based On Selection :3
United States
Virginia Dale
Landscape ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,918
8,750
0.274
* Total Citation Counts Rankings
Ranking Based On Selection :4
United States
C Neal Stewart Jr
synthetic biology
plant molecular biology and genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,694
12,516
0.421
* Total Citation Counts Rankings
Ranking Based On Selection :5
United States
Gary Sayler
Environemental Biotechnology
Microbiology Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,243
4,985
0.183
* Total Citation Counts Rankings
Ranking Based On Selection :6
United States
Brian K Barber
youth
political conflict
collective action
revolution
parenting
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,338
6,616
0.310
* Total Citation Counts Rankings
Ranking Based On Selection :7
United States
Sergey Gavrilets
evolutionary dynamics
social evolution
cultural evolution
speciation
human origins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,711
5,726
0.343
* Total Citation Counts Rankings
Ranking Based On Selection :8
United States
Chunlei Su
Toxoplasma gondii
population genetics
evolution and ecology of infectious diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,539
6,527
0.420
* Total Citation Counts Rankings
Ranking Based On Selection :9
United States
Feng Chen
Secondary Metabolism
Plant Biotic Interactions
Metabolic Evolution
Metabolic Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,478
7,763
0.536
* Total Citation Counts Rankings
Ranking Based On Selection :10
United States
Paul Armsworth
Theoretical ecology: Combining ecology & economics to improve the effectiveness of conservation programs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,651
5,729
0.420
* Total Citation Counts Rankings
Ranking Based On Selection :11
United States
James Fordyce
biology
ecology
evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,114
5,734
0.437
* Total Citation Counts Rankings
Ranking Based On Selection :12
United States
Gary Mccracken
Evolution
Ecology
bats
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,050
4,462
0.370
* Total Citation Counts Rankings
Ranking Based On Selection :13
United States
R Alexander Bentley
Culture evolution
Neolithic
decision making
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,731
4,474
0.381
* Total Citation Counts Rankings
Ranking Based On Selection :14
United States
Martin A Nuñez|Martin Nunez
ecology
Applied Ecology
biological invasions
invasion ecology
invasion biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,635
8,357
0.718
* Total Citation Counts Rankings
Ranking Based On Selection :15
United States
Jen Schweitzer
ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,246
5,411
0.481
* Total Citation Counts Rankings
Ranking Based On Selection :16
United States
Joe Bailey
Ecology
Evolution and Global Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,314
4,028
0.391
* Total Citation Counts Rankings
Ranking Based On Selection :17
United States
Susan E Riechert
Behavioral Ecology
Biological Control
Game Theory
Evolutionary Biology
STEM Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,734
1,418
0.146
* Total Citation Counts Rankings
Ranking Based On Selection :18
United States
Brian C O Meara
Evolutionary biology
Phylogenetics
Comparative methods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,617
5,722
0.595
* Total Citation Counts Rankings
Ranking Based On Selection :19
United States
Monica Papes
conservation biology
ecological niche modeling
remote sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,209
4,058
0.563
* Total Citation Counts Rankings
Ranking Based On Selection :20
United States
Juan Luis Jurat-Fuentes
Insect Pathology
Insect Physiology
Bacillus thuringiensis
RNAi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,083
3,693
0.521
* Total Citation Counts Rankings
Ranking Based On Selection :21
United States
Jennifer Debruyn
Microbial ecology
Environmental Microbiology
Biodegradation
Decomposition
Soils
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,742
5,032
0.746
* Total Citation Counts Rankings
Ranking Based On Selection :22
United States
Benjamin Minault Fitzpatrick
Ecology and evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,280
2,231
0.355
* Total Citation Counts Rankings
Ranking Based On Selection :23
United States
Bonnie H Ownley
Biological and cultural control of plant diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,386
2,769
0.514
* Total Citation Counts Rankings
Ranking Based On Selection :24
United States
Xingli Giam
Conservation Ecology
Aquatic Ecology
Applied Statistics
Conservation Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,725
3,221
0.682
* Total Citation Counts Rankings
Ranking Based On Selection :25
United States
Stephanie Kivlin
Microbial Ecology
Biogeography
Ecosystem Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,677
3,530
0.755
* Total Citation Counts Rankings
Rankings
2,679
United States
1,270
2
Ranking Based On Selection: 1
Daniel Simberloff
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
107,907
28,610
0.265
Conservation Biology
Ecology
Invasion Biology
Biogeography
* Total Citation Counts Rankings
Rankings
16,632
United States
7,799
13
Ranking Based On Selection: 2
Richard Norby
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,421
12,457
0.342
global change
ecology
forestry
carbon dioxide
* Total Citation Counts Rankings
Rankings
20,434
United States
9,451
15
Ranking Based On Selection: 3
Virginia Dale
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,918
8,750
0.274
* Total Citation Counts Rankings
Rankings
22,874
United States
10,539
20
Ranking Based On Selection: 4
C Neal Stewart Jr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,694
12,516
0.421
synthetic biology
plant molecular biology and genetics
* Total Citation Counts Rankings
Rankings
26,038
United States
11,920
24
Ranking Based On Selection: 5
Gary Sayler
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,243
4,985
0.183
Environemental Biotechnology
Microbiology Ecology
* Total Citation Counts Rankings
Rankings
37,206
United States
16,568
35
Ranking Based On Selection: 6
Brian K Barber
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,338
6,616
0.310
youth
political conflict
collective action
revolution
parenting
* Total Citation Counts Rankings
Rankings
51,971
United States
22,358
54
Ranking Based On Selection: 7
Sergey Gavrilets
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,711
5,726
0.343
evolutionary dynamics
social evolution
cultural evolution
speciation
human origins
* Total Citation Counts Rankings
Rankings
57,263
United States
24,381
59
Ranking Based On Selection: 8
Chunlei Su
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,539
6,527
0.420
Toxoplasma gondii
population genetics
evolution and ecology of infectious diseases
* Total Citation Counts Rankings
Rankings
62,869
United States
26,485
65
Ranking Based On Selection: 9
Feng Chen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,478
7,763
0.536
Secondary Metabolism
Plant Biotic Interactions
Metabolic Evolution
Metabolic Engineering
* Total Citation Counts Rankings
Rankings
67,968
United States
28,364
74
Ranking Based On Selection: 10
Paul Armsworth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,651
5,729
0.420
Theoretical ecology: Combining ecology & economics to improve the effectiveness of conservation programs
* Total Citation Counts Rankings
Rankings
71,515
United States
29,633
81
Ranking Based On Selection: 11
James Fordyce
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,114
5,734
0.437
* Total Citation Counts Rankings
Rankings
79,370
United States
32,481
91
Ranking Based On Selection: 12
Gary Mccracken
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,050
4,462
0.370
* Total Citation Counts Rankings
Rankings
81,952
United States
33,422
97
Ranking Based On Selection: 13
R Alexander Bentley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,731
4,474
0.381
* Total Citation Counts Rankings
Rankings
82,819
United States
33,743
101
Ranking Based On Selection: 14
Martin A Nuñez|Martin Nunez
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,635
8,357
0.718
ecology
Applied Ecology
biological invasions
invasion ecology
invasion biology
* Total Citation Counts Rankings
Rankings
86,267
United States
34,958
106
Ranking Based On Selection: 15
Jen Schweitzer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,246
5,411
0.481
* Total Citation Counts Rankings
Rankings
95,574
United States
38,173
121
Ranking Based On Selection: 16
Joe Bailey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,314
4,028
0.391
* Total Citation Counts Rankings
Rankings
102,060
United States
40,451
129
Ranking Based On Selection: 17
Susan E Riechert
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,734
1,418
0.146
Behavioral Ecology
Biological Control
Game Theory
Evolutionary Biology
STEM Education
* Total Citation Counts Rankings
Rankings
103,490
United States
40,939
135
Ranking Based On Selection: 18
Brian C O Meara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,617
5,722
0.595
Evolutionary biology
Phylogenetics
Comparative methods
* Total Citation Counts Rankings
Rankings
142,577
United States
53,906
175
Ranking Based On Selection: 19
Monica Papes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,209
4,058
0.563
conservation biology
ecological niche modeling
remote sensing
* Total Citation Counts Rankings
Rankings
145,289
United States
54,773
178
Ranking Based On Selection: 20
Juan Luis Jurat-Fuentes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,083
3,693
0.521
Insect Pathology
Insect Physiology
Bacillus thuringiensis
RNAi
* Total Citation Counts Rankings
Rankings
152,929
United States
57,213
191
Ranking Based On Selection: 21
Jennifer Debruyn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,742
5,032
0.746
Microbial ecology
Environmental Microbiology
Biodegradation
Decomposition
Soils
* Total Citation Counts Rankings
Rankings
164,580
United States
60,861
207
Ranking Based On Selection: 22
Benjamin Minault Fitzpatrick
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,280
2,231
0.355
* Total Citation Counts Rankings
Rankings
191,523
United States
69,148
242
Ranking Based On Selection: 23
Bonnie H Ownley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,386
2,769
0.514
Biological and cultural control of plant diseases
* Total Citation Counts Rankings
Rankings
217,519
United States
76,933
271
Ranking Based On Selection: 24
Xingli Giam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,725
3,221
0.682
Conservation Ecology
Aquatic Ecology
Applied Statistics
Conservation Policy
* Total Citation Counts Rankings
Rankings
219,564
United States
77,525
274
Ranking Based On Selection: 25
Stephanie Kivlin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,677
3,530
0.755
Microbial Ecology
Biogeography
Ecosystem Ecology