Citation Rankings
Highly Cited Researchers

NASA Johnson Space Center 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
Hang N Nguyen|Hang Ngoc Nguyen, Hang Nguyen
Environmental Space Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,648
1,381
0.838
* Total Citation Counts Rankings
Ranking Based On Selection :2
United States
G Ozan Bozdag
Evolutionary Genetics
Speciation
Multicellularity
Experimental Evolution
Yeast Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
377
317
0.841
* Total Citation Counts Rankings
Ranking Based On Selection :3
United States
Paul Frémont
ecology
genomics
plankton
climate change
models
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
357
356
0.997
* Total Citation Counts Rankings
Ranking Based On Selection :4
United States
Carina Baskett
Evolutionary Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
312
231
0.740
* Total Citation Counts Rankings
Ranking Based On Selection :5
United States
Tuhin Chakrabortty
Biological physics
Limit of sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
257
257
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :6
United States
Nadia Szeinbaum
Biology
microbial physiology
environmental microbiology
anaerobic respiration
central metabolism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
221
146
0.661
* Total Citation Counts Rankings
Ranking Based On Selection :7
United States
Hao Wu
Biology
Computer Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
188
167
0.888
* Total Citation Counts Rankings
Ranking Based On Selection :8
United States
Ellinor O Alseth
evolutionary ecology
microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
187
187
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :9
United States
Benjamin Shipley
Ecology
Biogeography
GIS
Endemism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
109
108
0.991
* Total Citation Counts Rankings
Ranking Based On Selection :10
United States
Stephanie M Bilodeau
ecology
marine systems
coral reefs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43
43
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :11
United States
Timothy O'Sullivan
Evolutionary biology
antibiotic resistance
within-host pathogen dynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23
16
0.696
* Total Citation Counts Rankings
Ranking Based On Selection :12
United States
Christopher Zhang
Microbial Ecology and Dynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
* Total Citation Counts Rankings
Rankings
502,474
United States
156,037
5
Ranking Based On Selection: 1
Hang N Nguyen|Hang Ngoc Nguyen, Hang Nguyen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,648
1,381
0.838
* Total Citation Counts Rankings
Rankings
1,028,994
United States
272,553
77
Ranking Based On Selection: 2
G Ozan Bozdag
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
377
317
0.841
Evolutionary Genetics
Speciation
Multicellularity
Experimental Evolution
Yeast Genetics
* Total Citation Counts Rankings
Rankings
1,050,068
United States
275,754
92
Ranking Based On Selection: 3
Paul Frémont
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
357
356
0.997
ecology
genomics
plankton
climate change
models
* Total Citation Counts Rankings
Rankings
1,104,252
United States
283,971
154
Ranking Based On Selection: 4
Carina Baskett
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
312
231
0.740
* Total Citation Counts Rankings
Rankings
1,183,156
United States
295,011
269
Ranking Based On Selection: 5
Tuhin Chakrabortty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
257
257
1.000
* Total Citation Counts Rankings
Rankings
1,247,057
United States
303,782
375
Ranking Based On Selection: 6
Nadia Szeinbaum
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
221
146
0.661
Biology
microbial physiology
environmental microbiology
anaerobic respiration
central metabolism
* Total Citation Counts Rankings
Rankings
1,314,335
United States
312,980
499
Ranking Based On Selection: 7
Hao Wu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
188
167
0.888
* Total Citation Counts Rankings
Rankings
1,315,850
United States
313,171
502
Ranking Based On Selection: 8
Ellinor O Alseth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
187
187
1.000
* Total Citation Counts Rankings
Rankings
1,541,342
United States
343,634
896
Ranking Based On Selection: 9
Benjamin Shipley
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
109
108
0.991
* Total Citation Counts Rankings
Rankings
1,865,276
United States
387,572
1,457
Ranking Based On Selection: 10
Stephanie M Bilodeau
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43
43
1.000
* Total Citation Counts Rankings
Rankings
2,037,006
United States
409,902
1,772
Ranking Based On Selection: 11
Timothy O'Sullivan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23
16
0.696
Evolutionary biology
antibiotic resistance
within-host pathogen dynamics
* Total Citation Counts Rankings
Rankings
2,189,162
United States
427,889
2,013
Ranking Based On Selection: 12
Christopher Zhang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000