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
soil microbial ecology
biogeochemistry
stable isotopes
ecosystem science
global change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,938
18,849
0.539
* Total Citation Counts Rankings
Ranking Based On Selection :2
Plant and ecosystem ecology
biogeochemistry
Arctic change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,883
15,170
0.508
* Total Citation Counts Rankings
Ranking Based On Selection :3
Forestry
Ecophysiology
Forest Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,166
10,263
0.463
* Total Citation Counts Rankings
Ranking Based On Selection :4
Fire
climate
forest
restoration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,746
7,673
0.389
* Total Citation Counts Rankings
Ranking Based On Selection :5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,387
11,873
0.646
* Total Citation Counts Rankings
Ranking Based On Selection :6
forest ecology
ecological restoration
conservation ecology
natural resource policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,139
2,148
0.152
* Total Citation Counts Rankings
Ranking Based On Selection :7
Forest and Range Plant Community Ecology
Restoration Ecology
Land-Use Change
Legacy Effects
Plant Population Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,971
1,946
0.217
* Total Citation Counts Rankings
Ranking Based On Selection :8
Tropical forest & savanna & Wildlife conservation - Deforestation monitoring - Restoration - REDD - Carbon mapping
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,841
2,225
0.381
* Total Citation Counts Rankings
Ranking Based On Selection :9
Biogeochemistry
Ecosystem ecology
Soil science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,527
5,240
0.948
* Total Citation Counts Rankings
Ranking Based On Selection :10
Entomology
Symbiosis
Ecology
Forest Entomology
Bioacoustics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,335
2,264
0.522
* Total Citation Counts Rankings
Ranking Based On Selection :11
plant ecology
climate change
ecohydrology
invasive species
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,656
2,463
0.674
* Total Citation Counts Rankings
Ranking Based On Selection :12
Forestry - Wetland Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,629
945
0.260
* Total Citation Counts Rankings
Ranking Based On Selection :13
Forest Ecology
Ecological Restoration
Fire Ecology
Forestry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,050
1,543
0.506
* Total Citation Counts Rankings
Ranking Based On Selection :14
forest operations and engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,702
1,341
0.496
* Total Citation Counts Rankings
Ranking Based On Selection :15
Forestry
Wood Quality
Modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,658
2,016
0.758
* Total Citation Counts Rankings
Ranking Based On Selection :16
Silviculture
Applied Forest Health
Invasive Species
Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,238
1,359
0.607
* Total Citation Counts Rankings
Ranking Based On Selection :17
soil ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,057
1,715
0.834
* Total Citation Counts Rankings
Ranking Based On Selection :18
Plant-herbivore interactions
plant adaptation
evolutionary genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,798
1,067
0.593
* Total Citation Counts Rankings
Ranking Based On Selection :19
Agrobiodiversity
food security
food sovereignty
environmental anthropology
Anthropocene
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,252
750
0.599
* Total Citation Counts Rankings
Ranking Based On Selection :20
Plant Systematics
Biogeography
Endemism on the Colorado Plateau
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
968
216
0.223
* Total Citation Counts Rankings
Ranking Based On Selection :21
Forest and fire ecology
protected areas
ecosystem services
conservation
community forestry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
406
240
0.591
* Total Citation Counts Rankings
Ranking Based On Selection :22
Soil and Plant Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
305
276
0.905
* Total Citation Counts Rankings
Ranking Based On Selection :23
Plant systematics
Evolution
Genomics
Bioinformatics & Conservation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
263
78
0.297
* Total Citation Counts Rankings
Ranking Based On Selection :24
forest
land use
deforestation
social forestry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144
102
0.708
* Total Citation Counts Rankings
Ranking Based On Selection :25
Forest ecology
Ecosystem Services
Climate Change Impacts and Adaptation
Forest Inventory and Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
143
117
0.818
Bruce Hungate
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,938
18,849
0.539
soil microbial ecology
biogeochemistry
stable isotopes
ecosystem science
global change
Michelle Cailin Mack
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,883
15,170
0.508
Plant and ecosystem ecology
biogeochemistry
Arctic change
Thomas Kolb
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,166
10,263
0.463
Forestry
Ecophysiology
Forest Ecology
Peter Z Fulé
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,746
7,673
0.389
Matthew Bowker
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,387
11,873
0.646
William Wallace Covington|William W Covington, W. W. Covington, Wally Covington
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,139
2,148
0.152
forest ecology
ecological restoration
conservation ecology
natural resource policy
Margaret M Moore
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,971
1,946
0.217
Forest and Range Plant Community Ecology
Restoration Ecology
Land-Use Change
Legacy Effects
Plant Population Ecology
Nadine Laporte
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,841
2,225
0.381
Tropical forest & savanna & Wildlife conservation - Deforestation monitoring - Restoration - REDD - Carbon mapping
Enqing Hou
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,527
5,240
0.948
Biogeochemistry
Ecosystem ecology
Soil science
Richard Hofstetter
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,335
2,264
0.522
Entomology
Symbiosis
Ecology
Forest Entomology
Bioacoustics
Daniel R Schlaepfer
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,656
2,463
0.674
plant ecology
climate change
ecohydrology
invasive species
James A Allen
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,629
945
0.260
David W Huffman
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,050
1,543
0.506
Forest Ecology
Ecological Restoration
Fire Ecology
Forestry
Han Sup Han
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,702
1,341
0.496
David Auty
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,658
2,016
0.758
Kristen Waring
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,238
1,359
0.607
Silviculture
Applied Forest Health
Invasive Species
Climate Change
Anita Antoninka
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,057
1,715
0.834
Liza Holeski
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,798
1,067
0.593
Plant-herbivore interactions
plant adaptation
evolutionary genetics
Alder Keleman Saxena|Alder Keleman
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,252
750
0.599
Agrobiodiversity
food security
food sovereignty
environmental anthropology
Anthropocene
Tina Ayers
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
968
216
0.223
Plant Systematics
Biogeography
Endemism on the Colorado Plateau
Citlali Cortés Montaño
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
406
240
0.591
Forest and fire ecology
protected areas
ecosystem services
conservation
community forestry
Jeffrey Propster
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
305
276
0.905
Soil and Plant Ecology
Miguel A Pérez-Pérez
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
263
78
0.297
Plant systematics
Evolution
Genomics
Bioinformatics & Conservation
Andika Putraditama
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
144
102
0.708
forest
land use
deforestation
social forestry
Alicia Azpeleta Tarancón
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
143
117
0.818
Forest ecology
Ecosystem Services
Climate Change Impacts and Adaptation
Forest Inventory and Analysis