Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 100 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 Monitoring and Assessmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,806
4,812
0.829
Get Full Access to Premium Data
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Livestock Science
Animal Nutritio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,179
2,158
0.679
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,012
680
0.226
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Food provenance
food authenticity
fisheries
wildlife crime
sustainabilit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,435
1,230
0.505
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Aquatic ecology
e-flows
ecological risk assessments
ichthyology
ecotoxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,931
1,611
0.834
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Soil Science
Plant nutrition
Agronomy
Composting
Farming System & intercroppin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,508
1,144
0.759
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Sharing economy
Accommodation Management
Food and Beverage Operations
Airline Operation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
960
736
0.767
* Total Citation Counts Rankings
Ranking Based On Selection: 8
SME Development
Entrepreneurship Education
Immigrant Entrepreneurship
Business Models
Business Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
921
590
0.641
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Monetary theory and policy
Financial Economics
Banking
Efficiency and Productivity Analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
886
608
0.686
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Zoology
Conservation biology
Ornithology
Ecolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
735
362
0.493
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Scholarship of Teaching and Learnin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
723
363
0.502
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
593
412
0.695
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Smallholder agriculture
Food security
Agric economics
climate change
sustainable livelihood
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
586
478
0.816
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Agric. Extension&Comm.
Technology transfer&Adoption
Rural livelihoods
Climate Change
Foo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
583
521
0.894
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Carnivore ecology
conservation biology
human-wildlife conflict
predator-prey interaction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
570
364
0.639
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Unemployment and Poverty studies
Macroeconomic issues
Climate Change
Big data analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
504
354
0.702
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Archives and records Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
493
473
0.959
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Archaeology
Later Stone Age
Iron Age
Craft economies
Landscape archaeolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
479
344
0.718
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Crop Protectio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
477
296
0.621
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Rural urban housing developmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
457
288
0.630
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Water treatment
Acid mine drainage
Minin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
448
345
0.770
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Pharmacology
Ethnopharmacology
Biochemistry
Metabolomics
Cell Biolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
407
369
0.907
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Ethno-botany
Indigenous Knowledge Systems
Medicinal plants
Ethnopharmacology
Phytomedicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
367
365
0.995
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Taxonomy
Flightless Soil Macroinvertebrate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
363
180
0.496
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
361
275
0.762
* Total Citation Counts Rankings
Rankings
188,361
775
1
Ranking Based On Selection: 1
Tatenda Dalu
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,806
4,812
0.829
Environmental Monitoring and Assessmen
* Total Citation Counts Rankings
Rankings
325,651
1,452
2
Ranking Based On Selection: 2
Victor Mlambo
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,179
2,158
0.679
Livestock Science
Animal Nutritio
* Total Citation Counts Rankings
Rankings
340,263
1,527
3
Ranking Based On Selection: 3
Ric Bernard
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,012
680
0.226
* Total Citation Counts Rankings
Rankings
402,116
1,861
4
Ranking Based On Selection: 4
Donna Cawthorn
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,435
1,230
0.505
Food provenance
food authenticity
fisheries
wildlife crime
sustainabilit
* Total Citation Counts Rankings
Rankings
475,326
2,257
5
Ranking Based On Selection: 5
Gordon O'brien
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,931
1,611
0.834
Aquatic ecology
e-flows
ecological risk assessments
ichthyology
ecotoxicology
* Total Citation Counts Rankings
Rankings
559,094
2,738
6
Ranking Based On Selection: 6
Kutu FR
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,508
1,144
0.759
Soil Science
Plant nutrition
Agronomy
Composting
Farming System & intercroppin
* Total Citation Counts Rankings
Rankings
720,293
3,696
7
Ranking Based On Selection: 7
Oswald Mhlanga
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
960
736
0.767
Sharing economy
Accommodation Management
Food and Beverage Operations
Airline Operation
* Total Citation Counts Rankings
Rankings
735,262
3,782
8
Ranking Based On Selection: 8
Mazanai Musara
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
921
590
0.641
SME Development
Entrepreneurship Education
Immigrant Entrepreneurship
Business Models
Business Managemen
* Total Citation Counts Rankings
Rankings
749,035
3,861
9
Ranking Based On Selection: 9
Andrew Maredza
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
886
608
0.686
Monetary theory and policy
Financial Economics
Banking
Efficiency and Productivity Analysi
* Total Citation Counts Rankings
Rankings
814,802
4,296
10
Ranking Based On Selection: 10
Mduduzi Ndlovu
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
735
362
0.493
Zoology
Conservation biology
Ornithology
Ecolog
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Rankings
820,520
4,329
11
Ranking Based On Selection: 11
Severino Machingambi
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
723
363
0.502
Scholarship of Teaching and Learnin
* Total Citation Counts Rankings
Rankings
890,012
4,768
12
Ranking Based On Selection: 12
Terence Suinyuy
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
593
412
0.695
* Total Citation Counts Rankings
Rankings
894,258
4,794
13
Ranking Based On Selection: 13
Isaac Azikiwe Agholor (Pr.Sci.Nat)
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
586
478
0.816
Smallholder agriculture
Food security
Agric economics
climate change
sustainable livelihood
* Total Citation Counts Rankings
Rankings
896,081
4,807
14
Ranking Based On Selection: 14
Oluwasogo David Olorunfemi
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
583
521
0.894
Agric. Extension&Comm.
Technology transfer&Adoption
Rural livelihoods
Climate Change
Foo
* Total Citation Counts Rankings
Rankings
904,745
4,867
15
Ranking Based On Selection: 15
Liaan Minnie
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
570
364
0.639
Carnivore ecology
conservation biology
human-wildlife conflict
predator-prey interaction
* Total Citation Counts Rankings
Rankings
954,798
5,256
16
Ranking Based On Selection: 16
Ferdinand Niyimbanira
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
504
354
0.702
Unemployment and Poverty studies
Macroeconomic issues
Climate Change
Big data analysi
* Total Citation Counts Rankings
Rankings
963,955
5,333
17
Ranking Based On Selection: 17
Sidney Netshakhuma
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
493
473
0.959
Archives and records Managemen
* Total Citation Counts Rankings
Rankings
976,334
5,447
18
Ranking Based On Selection: 18
Tim Forssman
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
479
344
0.718
Archaeology
Later Stone Age
Iron Age
Craft economies
Landscape archaeolog
* Total Citation Counts Rankings
Rankings
978,255
5,463
19
Ranking Based On Selection: 19
Zakheleni Dube
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
477
296
0.621
* Total Citation Counts Rankings
Rankings
996,058
5,603
20
Ranking Based On Selection: 20
Simphiwe E Mini|Mini SE, S Mini, Simphiwe Mini
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
457
288
0.630
* Total Citation Counts Rankings
Rankings
1,004,163
5,664
21
Ranking Based On Selection: 21
Ayanda N. Shabalala
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
448
345
0.770
* Total Citation Counts Rankings
Rankings
1,043,914
6,019
22
Ranking Based On Selection: 22
Idowu Jonas Sagbo
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
407
369
0.907
Pharmacology
Ethnopharmacology
Biochemistry
Metabolomics
Cell Biolog
* Total Citation Counts Rankings
Rankings
1,086,866
6,375
23
Ranking Based On Selection: 23
Peter Tshepiso Ndhlovu
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
367
365
0.995
Ethno-botany
Indigenous Knowledge Systems
Medicinal plants
Ethnopharmacology
Phytomedicin
* Total Citation Counts Rankings
Rankings
1,092,248
6,420
24
Ranking Based On Selection: 24
Tarombera Mwabvu
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
363
180
0.496
Taxonomy
Flightless Soil Macroinvertebrate
* Total Citation Counts Rankings
Rankings
1,094,232
6,440
25
Ranking Based On Selection: 25
Rasodi K. Manyaka
University of Mpumalanga
Mbombela, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
361
275
0.762