Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :1
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
54
0.915
* Total i10 IndexRankings
Ranking Based On Selection :2
environmental toxicology
water quality
risk assessment
freshwater mussels
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
20
0.500
* Total i10 IndexRankings
Ranking Based On Selection :3
aquatic toxicology
fish health
freshwater mussels
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
13
0.342
* Total i10 IndexRankings
Ranking Based On Selection :4
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
24
0.649
* Total i10 IndexRankings
Ranking Based On Selection :5
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
21
0.656
* Total i10 IndexRankings
Ranking Based On Selection :6
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
25
0.962
* Total i10 IndexRankings
Ranking Based On Selection :7
Theoretical Statistics
Statistical Ecology
Mathematical Modeling
USFWS
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
12
0.667
* Total i10 IndexRankings
Ranking Based On Selection :8
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
13
0.765
* Total i10 IndexRankings
Ranking Based On Selection :9
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
8
0.471
* Total i10 IndexRankings
Ranking Based On Selection :10
landscape/seascape ecology
species distribution modeling
conservation biology
conservation planning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
7
0.500
* Total i10 IndexRankings
Ranking Based On Selection :11
salt marsh restoration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
* Total i10 IndexRankings
Ranking Based On Selection :12
Climate Change
Wildlife Ecology
Ecological Restoration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
* Total i10 IndexRankings
Ranking Based On Selection :13
Population Dynamics
Conservation Management
Decision Analysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
* Total i10 IndexRankings
Ranking Based On Selection :14
invasive species
Asian carps
early detection
Lake Michigan
adaptive monitoring
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
6
0.462
* Total i10 IndexRankings
Ranking Based On Selection :15
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
* Total i10 IndexRankings
Ranking Based On Selection :16
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
6
0.600
* Total i10 IndexRankings
Ranking Based On Selection :17
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
5
0.500
* Total i10 IndexRankings
Ranking Based On Selection :18
evolution
biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
7
0.778
* Total i10 IndexRankings
Ranking Based On Selection :19
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
6
0.667
* Total i10 IndexRankings
Ranking Based On Selection :20
conservation physiology
reproductive ecology
mammalogy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
* Total i10 IndexRankings
Ranking Based On Selection :21
Quantitative ecology
wildlife management
population ecology
statistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
5
0.714
* Total i10 IndexRankings
Ranking Based On Selection :22
Island ecology
Invasive species
Climate change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
2
0.286
* Total i10 IndexRankings
Ranking Based On Selection :23
Environmental DNA
Ecotoxicology
Invasive species
Herpetology
Aquatic Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total i10 IndexRankings
Ranking Based On Selection :24
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total i10 IndexRankings
Ranking Based On Selection :25
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833
Brian Balmer
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
54
0.915
Tom Augspurger
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
20
0.500
environmental toxicology
water quality
risk assessment
freshwater mussels
Alfred E Pinkney
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
13
0.342
John M Guinotte
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
24
0.649
Matthew J Butler
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
21
0.656
Jason Tack
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
25
0.962
David R Stewart
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
12
0.667
Theoretical Statistics
Statistical Ecology
Mathematical Modeling
USFWS
Andrew Allstadt
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
13
0.765
Scott L Durst
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
8
0.471
Bradley Pickens
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
7
0.500
landscape/seascape ecology
species distribution modeling
conservation biology
conservation planning
Susan C Adamowicz
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
Corinne A Diggins
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
Rachel Katz
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
Cari-Ann Hayer
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
6
0.462
invasive species
Asian carps
early detection
Lake Michigan
adaptive monitoring
Toni Mizerek
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
Jesse D'Elia
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
6
0.600
William Smith
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
5
0.500
Rachel Brown|Rachel Arnold
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
7
0.778
Kimberleigh J Field
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
6
0.667
Sarah M Chinn
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
Jared Laufenberg
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
5
0.714
Quantitative ecology
wildlife management
population ecology
statistics
Jeff Burgett
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
2
0.286
Amanda N Curtis
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
Environmental DNA
Ecotoxicology
Invasive species
Herpetology
Aquatic Ecology
Jonah Withers
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
Sinead Borchert|Sinéad Borchert
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833