Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 164 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Environmental Healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,638
10,433
0.482
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,545
1,858
0.409
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Sustainable Livestock Production System
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,885
1,520
0.527
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Agricultural science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,213
469
0.212
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Agribusiness Financing and Mgt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,154
1,233
0.572
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Agribusiness Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,032
1,306
0.643
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Crop Physiology/Breeding
Seed systems
Dryland legumes
stress physiology
Agronom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,957
1,237
0.632
* Total Citation Counts Rankings
Ranking Based On Selection: 8
bioprospecting for botanical pesticides
orphan and underutilized crops
postharvest waste and loss reductio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,949
943
0.484
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Animal Nutritio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,885
964
0.511
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
Physical and environmental Chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,807
1,512
0.837
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Agricultural policy
climate change
credit
value chain
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,765
1,123
0.636
* Total Citation Counts Rankings
Ranking Based On Selection: 12
obstetrics and gynaecolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,721
1,186
0.689
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,628
1,124
0.690
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Impact evaluation and analysis of developmental interventions
food quality and standards
agricultural value chain analysis a
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,457
1,145
0.786
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Rhizobiology
Carbon and Nitrogen Cyclin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,380
888
0.643
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Vegetable
Stress physiology
Biotechnology
plant extract
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,338
556
0.416
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Microbial Biotechnolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,258
1,003
0.797
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Nutrients dynamics in aquatic systems
Eutrophication prognosis
Climate Change Impacts and Copying Strategies
Ecology of Livelihood
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,255
768
0.612
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Mangrove forest ecology
Mitigation
Greenhouse Gas (GHGs) emissions
Blue econom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,209
679
0.562
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Microeconomics
International trade & development economic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,126
621
0.552
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Rangeland ecology and management
wildlife conservation
pastoral livelihood
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,097
623
0.568
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Operatons Management and Supply Chain Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
976
480
0.492
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Aquatic Ecology
Phytoplankton Ecology
Taxonomy and Physiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
935
482
0.516
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Agricultural Economic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
907
611
0.674
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Fisheries
Aquaculture
Parasitology
Aquatic Pollution
Biomonitorin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
794
512
0.645
* Total Citation Counts Rankings
Rankings
38,818
10
1
Ranking Based On Selection: 1
Wilkister Nyaora Moturi
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,638
10,433
0.482
* Total Citation Counts Rankings
Rankings
237,050
106
2
Ranking Based On Selection: 2
Alexander Kahi
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,545
1,858
0.409
* Total Citation Counts Rankings
Rankings
350,717
190
3
Ranking Based On Selection: 3
Bockline Omedo Bebe
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,885
1,520
0.527
Sustainable Livestock Production System
* Total Citation Counts Rankings
Rankings
429,773
266
4
Ranking Based On Selection: 4
Samuel Mwonga
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,213
469
0.212
* Total Citation Counts Rankings
Rankings
438,147
275
5
Ranking Based On Selection: 5
George Owuor
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,154
1,233
0.572
* Total Citation Counts Rankings
Rankings
456,747
302
6
Ranking Based On Selection: 6
Patience Mlongo Mshenga
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,032
1,306
0.643
Agribusiness Managemen
* Total Citation Counts Rankings
Rankings
469,049
317
7
Ranking Based On Selection: 7
Kimurto Paul Kiprotich
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,957
1,237
0.632
Crop Physiology/Breeding
Seed systems
Dryland legumes
stress physiology
Agronom
* Total Citation Counts Rankings
Rankings
470,416
323
8
Ranking Based On Selection: 8
Joshua Ondura Ogendo
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,949
943
0.484
bioprospecting for botanical pesticides
orphan and underutilized crops
postharvest waste and loss reductio
* Total Citation Counts Rankings
Rankings
481,468
342
9
Ranking Based On Selection: 9
Anthony Macharia Kingori
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,885
964
0.511
* Total Citation Counts Rankings
Rankings
495,556
361
10
Ranking Based On Selection: 10
Joshua Kiprotich Kibet
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,807
1,512
0.837
Physical and environmental Chemistr
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Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
* Total Citation Counts Rankings
Rankings
503,618
376
11
Ranking Based On Selection: 11
Lilian Kirimi
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,765
1,123
0.636
Agricultural policy
climate change
credit
value chain
* Total Citation Counts Rankings
Rankings
512,118
382
12
Ranking Based On Selection: 12
Amos Otara
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,721
1,186
0.689
obstetrics and gynaecolog
* Total Citation Counts Rankings
Rankings
530,795
415
13
Ranking Based On Selection: 13
Hillary Bett
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,628
1,124
0.690
* Total Citation Counts Rankings
Rankings
569,172
467
14
Ranking Based On Selection: 14
Oscar Ingasia Ayuya
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,457
1,145
0.786
Impact evaluation and analysis of developmental interventions
food quality and standards
agricultural value chain analysis a
* Total Citation Counts Rankings
Rankings
588,134
499
15
Ranking Based On Selection: 15
Nancy W Mungai
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,380
888
0.643
Rhizobiology
Carbon and Nitrogen Cyclin
* Total Citation Counts Rankings
Rankings
599,253
517
16
Ranking Based On Selection: 16
Joshua Otieno Ogweno
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,338
556
0.416
Vegetable
Stress physiology
Biotechnology
plant extract
* Total Citation Counts Rankings
Rankings
620,908
563
17
Ranking Based On Selection: 17
John Masani Nduko
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,258
1,003
0.797
Microbial Biotechnolog
* Total Citation Counts Rankings
Rankings
621,814
566
18
Ranking Based On Selection: 18
Nzula Kitaka
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,255
768
0.612
Nutrients dynamics in aquatic systems
Eutrophication prognosis
Climate Change Impacts and Copying Strategies
Ecology of Livelihood
* Total Citation Counts Rankings
Rankings
635,356
588
19
Ranking Based On Selection: 19
Bernard Kirui
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,209
679
0.562
Mangrove forest ecology
Mitigation
Greenhouse Gas (GHGs) emissions
Blue econom
* Total Citation Counts Rankings
Rankings
660,758
632
20
Ranking Based On Selection: 20
Lawrence Kibet
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,126
621
0.552
Microeconomics
International trade & development economic
* Total Citation Counts Rankings
Rankings
670,070
649
21
Ranking Based On Selection: 21
Wilfred O Odadi
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,097
623
0.568
Rangeland ecology and management
wildlife conservation
pastoral livelihood
* Total Citation Counts Rankings
Rankings
712,489
730
22
Ranking Based On Selection: 22
Richard B Nyaoga
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
976
480
0.492
Operatons Management and Supply Chain Managemen
* Total Citation Counts Rankings
Rankings
728,023
754
23
Ranking Based On Selection: 23
Steve Omondi Oduor
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
935
482
0.516
Aquatic Ecology
Phytoplankton Ecology
Taxonomy and Physiolog
* Total Citation Counts Rankings
Rankings
738,853
777
24
Ranking Based On Selection: 24
Eric Obedy Gido
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
907
611
0.674
Agricultural Economic
* Total Citation Counts Rankings
Rankings
785,884
864
25
Ranking Based On Selection: 25
Elick Otachi
Egerton University
Njoro, Kenya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
794
512
0.645
Fisheries
Aquaculture
Parasitology
Aquatic Pollution
Biomonitorin