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
Freshwater Mussels
Conservation Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
178
76
0.427
* Total i10 IndexRankings
Ranking Based On Selection :2
shorebirds
arctic ecology
migration ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
54
0.568
* Total i10 IndexRankings
Ranking Based On Selection :3
lake trout
Great Lakes
coregonines
mass marking
restoration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
50
0.617
* Total i10 IndexRankings
Ranking Based On Selection :4
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
54
0.915
* Total i10 IndexRankings
Ranking Based On Selection :5
Conservation Biology
Landscape Ecology
Grasslands
Sagebrush
Conservation Planning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
43
0.878
* Total i10 IndexRankings
Ranking Based On Selection :6
Wildlife space use
movement ecology
resource selection
behavioral ecology
wildlife management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
38
0.864
* Total i10 IndexRankings
Ranking Based On Selection :7
Chemistry
Wildlife Forensics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
32
0.762
* Total i10 IndexRankings
Ranking Based On Selection :8
conservation biology
fisheries
evolution
ecology
genetics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
30
0.714
* Total i10 IndexRankings
Ranking Based On Selection :9
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 :10
Quantitative Ecology
Population Ecology
Conservation Biology
Migration Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
33
0.846
* Total i10 IndexRankings
Ranking Based On Selection :11
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 :12
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
24
0.649
* Total i10 IndexRankings
Ranking Based On Selection :13
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
21
0.656
* Total i10 IndexRankings
Ranking Based On Selection :14
Wildlife trade
human-wildlife conflict
big cats
endangered species
socio-ecological
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
31
1.000
* Total i10 IndexRankings
Ranking Based On Selection :15
Ecology
Conservation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
20
0.645
* Total i10 IndexRankings
Ranking Based On Selection :16
Spatial ecology
Remote Sensing
Wildlife Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
21
0.724
* Total i10 IndexRankings
Ranking Based On Selection :17
Wildlife Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
15
0.536
* Total i10 IndexRankings
Ranking Based On Selection :18
wildlife management
wildlife biology
population ecology
adaptive management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
16
0.593
* Total i10 IndexRankings
Ranking Based On Selection :19
Ecology
Wildlife Management
Conservation Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
12
0.444
* Total i10 IndexRankings
Ranking Based On Selection :20
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
25
0.962
* Total i10 IndexRankings
Ranking Based On Selection :21
Phylogenetics
Conservation Biology
Invertebrates
Molluscs
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
22
0.846
* Total i10 IndexRankings
Ranking Based On Selection :22
ecological statistics
Bayesian estimation
small area estimation
time series analysis
seasonal
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
10
0.385
* Total i10 IndexRankings
Ranking Based On Selection :23
Aquatic Ecology
Biodiversity
Environmental Stressors
Invasive Species
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
22
0.880
* Total i10 IndexRankings
Ranking Based On Selection :24
Migration ecology
avian conservation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
18
0.720
* Total i10 IndexRankings
Ranking Based On Selection :25
applied ecology
conservation biology
foraging behavior
wildlife disease
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
17
0.680
Jess Jones
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
178
76
0.427
Freshwater Mussels
Conservation Biology
richard lanctot
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
54
0.568
shorebirds
arctic ecology
migration ecology
Charles R Bronte
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
50
0.617
lake trout
Great Lakes
coregonines
mass marking
restoration
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
Kevin E Doherty
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
43
0.878
Conservation Biology
Landscape Ecology
Grasslands
Sagebrush
Conservation Planning
Ryan R Wilson
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
38
0.864
Wildlife space use
movement ecology
resource selection
behavioral ecology
wildlife management
Edgard Espinoza
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
32
0.762
William R Ardren
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
30
0.714
conservation biology
fisheries
evolution
ecology
genetics
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
Jeffrey Hostetler
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
33
0.846
Quantitative Ecology
Population Ecology
Conservation Biology
Migration Ecology
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
Jennifer Rb Miller
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
31
1.000
Wildlife trade
human-wildlife conflict
big cats
endangered species
socio-ecological
Nathan R Franssen
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
20
0.645
Steven Sesnie
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
21
0.724
Spatial ecology
Remote Sensing
Wildlife Ecology
Mark Seamans
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
15
0.536
G Scott Boomer
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
16
0.593
wildlife management
wildlife biology
population ecology
adaptive management
Roy C Averill-Murray
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
12
0.444
Ecology
Wildlife Management
Conservation Biology
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
Nathan Whelan
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
22
0.846
Phylogenetics
Conservation Biology
Invertebrates
Molluscs
Mark C Otto
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
10
0.385
ecological statistics
Bayesian estimation
small area estimation
time series analysis
seasonal
Matthew S Kornis
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
22
0.880
Aquatic Ecology
Biodiversity
Environmental Stressors
Invasive Species
James A Johnson
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
18
0.720
Migration ecology
avian conservation
Jeremy TH Coleman
US Fish and Wildlife Service
Washington, D.C., United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
17
0.680
applied ecology
conservation biology
foraging behavior
wildlife disease