Citation Rankings
Highly Cited Researchers

Natural Sciences / Biological Science Highly Cited Researchers Citation 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
Nigeria
Okechukwu Idumah Okogwu
Water quality
Toxicology
Ecology
Hydrobiology
Sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
748
427
0.571
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Nigeria
Catherine V. Nnamani
Botany
Plant Systematics
Palynology
Conservation Biology
Molecular Biology & Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
622
406
0.653
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Nigeria
Ufere N. Uka
Ecology
Ecophysiology
Hydrobotany
Phytoremediation .
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
602
423
0.703
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Nigeria
Michael Okpara Elom
Parasitology
Zoonoses
One Health
NTDs
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
547
355
0.649
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Nigeria
Ani, Ogonna Christiana
Zoology
Parasitology
Immunology and Virology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
295
234
0.793
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Nigeria
Chidinma Blessing Anyanwu|Egwuom Godswill Blessing C
Biotechnology
Biology
Biodiversity
Cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
* Total Citation Counts Rankings
Rankings
781,856
Nigeria
3,567
19
Ranking Based On Selection: 1
Okechukwu Idumah Okogwu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
748
427
0.571
Water quality
Toxicology
Ecology
Hydrobiology
Sustainability
* Total Citation Counts Rankings
Rankings
844,119
Nigeria
4,628
32
Ranking Based On Selection: 2
Catherine V. Nnamani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
622
406
0.653
Botany
Plant Systematics
Palynology
Conservation Biology
Molecular Biology & Climate Change
* Total Citation Counts Rankings
Rankings
854,672
Nigeria
4,816
33
Ranking Based On Selection: 3
Ufere N. Uka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
602
423
0.703
Ecology
Ecophysiology
Hydrobotany
Phytoremediation .
* Total Citation Counts Rankings
Rankings
885,468
Nigeria
5,436
39
Ranking Based On Selection: 4
Michael Okpara Elom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
547
355
0.649
Parasitology
Zoonoses
One Health
NTDs
Public Health
* Total Citation Counts Rankings
Rankings
1,131,289
Nigeria
10,239
96
Ranking Based On Selection: 5
Ani, Ogonna Christiana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
295
234
0.793
Zoology
Parasitology
Immunology and Virology
* Total Citation Counts Rankings
Rankings
2,072,560
Nigeria
34,821
328
Ranking Based On Selection: 6
Chidinma Blessing Anyanwu|Egwuom Godswill Blessing C
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000