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
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,005
2,189
0.437
* Total Citation Counts Rankings
Ranking Based On Selection :2
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,924
2,266
0.577
* Total Citation Counts Rankings
Ranking Based On Selection :3
environmental toxicology
water quality
risk assessment
freshwater mussels
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,279
797
0.350
* Total Citation Counts Rankings
Ranking Based On Selection :4
aquatic toxicology
fish health
freshwater mussels
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,753
413
0.236
* Total Citation Counts Rankings
Ranking Based On Selection :5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,752
1,254
0.716
* Total Citation Counts Rankings
Ranking Based On Selection :6
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,065
773
0.726
* Total Citation Counts Rankings
Ranking Based On Selection :7
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
952
612
0.643
* Total Citation Counts Rankings
Ranking Based On Selection :8
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
920
505
0.549
* Total Citation Counts Rankings
Ranking Based On Selection :9
salt marsh restoration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
868
402
0.463
* Total Citation Counts Rankings
Ranking Based On Selection :10
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
638
291
0.456
* Total Citation Counts Rankings
Ranking Based On Selection :11
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
567
261
0.460
* Total Citation Counts Rankings
Ranking Based On Selection :12
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
522
284
0.544
* Total Citation Counts Rankings
Ranking Based On Selection :13
Population Dynamics
Conservation Management
Decision Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
438
339
0.774
* Total Citation Counts Rankings
Ranking Based On Selection :14
Climate Change
Wildlife Ecology
Ecological Restoration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
427
305
0.714
* Total Citation Counts Rankings
Ranking Based On Selection :15
Theoretical Statistics
Statistical Ecology
Mathematical Modeling
USFWS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
420
319
0.760
* Total Citation Counts Rankings
Ranking Based On Selection :16
invasive species
Asian carps
early detection
Lake Michigan
adaptive monitoring
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
395
237
0.600
* Total Citation Counts Rankings
Ranking Based On Selection :17
landscape/seascape ecology
species distribution modeling
conservation biology
conservation planning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
358
197
0.550
* Total Citation Counts Rankings
Ranking Based On Selection :18
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
294
166
0.565
* Total Citation Counts Rankings
Ranking Based On Selection :19
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
266
0.933
* Total Citation Counts Rankings
Ranking Based On Selection :20
Island ecology
Invasive species
Climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
283
70
0.247
* Total Citation Counts Rankings
Ranking Based On Selection :21
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
267
105
0.393
* Total Citation Counts Rankings
Ranking Based On Selection :22
Environmental DNA
Ecotoxicology
Invasive species
Herpetology
Aquatic Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
245
243
0.992
* Total Citation Counts Rankings
Ranking Based On Selection :23
Natural Resource Conservation
Avian Ecology
Sustainable Agriculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
96
0.416
* Total Citation Counts Rankings
Ranking Based On Selection :24
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
230
187
0.813
* Total Citation Counts Rankings
Ranking Based On Selection :25
conservation physiology
reproductive ecology
mammalogy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
215
188
0.874
John M Guinotte
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,005
2,189
0.437
Brian Balmer
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,924
2,266
0.577
Tom Augspurger
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,279
797
0.350
environmental toxicology
water quality
risk assessment
freshwater mussels
Alfred E Pinkney
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,753
413
0.236
Toni Mizerek
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,752
1,254
0.716
Jason Tack
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,065
773
0.726
Andrew Allstadt
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
952
612
0.643
Matthew J Butler
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
920
505
0.549
Susan C Adamowicz
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
868
402
0.463
Kimberleigh J Field
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
638
291
0.456
Scott L Durst
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
567
261
0.460
Jesse D'Elia
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
522
284
0.544
Rachel Katz
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
438
339
0.774
Corinne A Diggins
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
427
305
0.714
David R Stewart
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
420
319
0.760
Theoretical Statistics
Statistical Ecology
Mathematical Modeling
USFWS
Cari-Ann Hayer
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
395
237
0.600
invasive species
Asian carps
early detection
Lake Michigan
adaptive monitoring
Bradley Pickens
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
358
197
0.550
landscape/seascape ecology
species distribution modeling
conservation biology
conservation planning
William Smith
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
294
166
0.565
Sinead Borchert|Sinéad Borchert
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
266
0.933
Jeff Burgett
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
283
70
0.247
Nolan Banish
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
267
105
0.393
Amanda N Curtis
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
245
243
0.992
Environmental DNA
Ecotoxicology
Invasive species
Herpetology
Aquatic Ecology
Josh Vest
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
96
0.416
Natural Resource Conservation
Avian Ecology
Sustainable Agriculture
Susan Rogers Oetker
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
230
187
0.813
Sarah M Chinn
US Fish and Wildlife Service
Washington, D.C., United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
215
188
0.874