Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Click for "last 6 years' i10 index". Also see: Universities Rankings 2024 (Sort by : Total i10 Index) and Universities Rankings 2024 (Sort by : Last 6 Years i10 Index)
* Total i10 Index Rankings
World Rank
544
Country Rank
3
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/11299.jpg)
![South Africa](/flags/za.png)
![Mike Wingfield](https://cdn.adscientificindex.com/pictures/08/93896.jpg)
forest protection
mycology
entomology
biotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1,022
667
0.653
* Total i10 Index Rankings
World Rank
12,027
Country Rank
46
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Steven D. Johnson](https://cdn.adscientificindex.com/pictures/1b/91009.jpg)
Evolutionary biology
pollination biology
plant reproduction
chemical ecology
invasion biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
309
240
0.777
* Total i10 Index Rankings
World Rank
16,132
Country Rank
65
Institution Rank : 7
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Hussien Shimelis](https://cdn.adscientificindex.com/pictures/b6/99316.jpg)
Plant Breeding
Plant Genetics
Quantitative Genetics
Crop Science
Agricultural Plant Sciences
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
273
249
0.912
* Total i10 Index Rankings
World Rank
17,538
Country Rank
71
Institution Rank : 3
![](https://cdn.adscientificindex.com/logos/7293.jpg)
![South Africa](/flags/za.png)
![Christopher Mcquaid](https://cdn.adscientificindex.com/pictures/31/105775.jpg)
Marine ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
264
170
0.644
* Total i10 Index Rankings
World Rank
19,039
Country Rank
82
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/6427.png)
![South Africa](/flags/za.png)
![Olubukola Oluranti Babalola](https://cdn.adscientificindex.com/pictures/d3/96341.jpg)
Microbial Ecology
Soil Metagenomics
Plant-Microbe Interactions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
254
242
0.953
* Total i10 Index Rankings
World Rank
24,313
Country Rank
104
Institution Rank : 12
![](https://cdn.adscientificindex.com/logos/8529.jpg)
![South Africa](/flags/za.png)
![Umezuruike Linus Opara](https://cdn.adscientificindex.com/pictures/57/91721.jpg)
Postharvest Technology
Food Science and Technology
Biosystems Engineering
Horticultural Science
Pomegranate
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
227
216
0.952
* Total i10 Index Rankings
World Rank
24,963
Country Rank
109
Institution Rank : 8
![](https://cdn.adscientificindex.com/logos/11299.jpg)
![South Africa](/flags/za.png)
![Marthan Bester](https://cdn.adscientificindex.com/pictures/b0/93412.jpg)
Marine Mammal Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
225
109
0.484
* Total i10 Index Rankings
World Rank
27,590
Country Rank
130
Institution Rank : 12
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Mark Laing](https://cdn.adscientificindex.com/pictures/b1/93378.jpg)
Biological control
silicon in agriculture
plant breeding
African crops
climate change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
214
176
0.822
* Total i10 Index Rankings
World Rank
29,673
Country Rank
138
Institution Rank : 25
![](https://cdn.adscientificindex.com/logos/11498.jpg)
![South Africa](/flags/za.png)
![ETF Witkowski](https://cdn.adscientificindex.com/pictures/7a/97319.jpg)
Plant ecology
plant ecophysiology
conservation biology
invasion biology
ethnoecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
207
139
0.671
* Total i10 Index Rankings
World Rank
30,868
Country Rank
140
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/15677.jpg)
![South Africa](/flags/za.png)
![Olaf LF Weyl](https://cdn.adscientificindex.com/pictures/82/4375107.jpg)
Inland Fisheries
Fish Biology
Freshwater Ecology
Invasion Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
203
162
0.798
* Total i10 Index Rankings
World Rank
39,730
Country Rank
167
Institution Rank : 33
![](https://cdn.adscientificindex.com/logos/10906.jpg)
![South Africa](/flags/za.png)
![Charles Griffiths](/user/assets/images/profile/no-profile-photo.png)
Marine invertebrate biodiversity
marine alien species
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
180
110
0.611
* Total i10 Index Rankings
World Rank
39,954
Country Rank
168
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/11497.jpg)
![South Africa](/flags/za.png)
![Ralf Henkel](https://cdn.adscientificindex.com/pictures/63/89168.jpg)
Andrology
Oxidative stress
Medicinal Plants
reactive oxygen species
male infertility
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
179
155
0.866
* Total i10 Index Rankings
World Rank
40,328
Country Rank
172
Institution Rank : 14
![](https://cdn.adscientificindex.com/logos/11299.jpg)
![South Africa](/flags/za.png)
![Hans P. Binswanger-Mkhize](https://cdn.adscientificindex.com/pictures/a3/1975630.jpg)
Agricultural and Rural Development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
179
67
0.374
* Total i10 Index Rankings
World Rank
40,959
Country Rank
175
Institution Rank : 4
![](https://cdn.adscientificindex.com/logos/7293.jpg)
![South Africa](/flags/za.png)
![Martin P Hill](https://cdn.adscientificindex.com/pictures/1b/93437.jpg)
Biological Control
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
177
131
0.740
* Total i10 Index Rankings
World Rank
46,108
Country Rank
196
Institution Rank : 38
![](https://cdn.adscientificindex.com/logos/10906.jpg)
![South Africa](/flags/za.png)
![M. Timm Hoffman](https://cdn.adscientificindex.com/pictures/34/92753.jpg)
Historical Ecology
Conservation Biology
Arid Lands
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
167
93
0.557
* Total i10 Index Rankings
World Rank
49,343
Country Rank
206
Institution Rank : 18
![](https://cdn.adscientificindex.com/logos/11299.jpg)
![South Africa](/flags/za.png)
![Teresa Coutinho](/user/assets/images/profile/no-profile-photo.png)
microbiology
plant pathology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
161
116
0.720
* Total i10 Index Rankings
World Rank
50,038
Country Rank
209
Institution Rank : 11
![](https://cdn.adscientificindex.com/logos/6427.png)
![South Africa](/flags/za.png)
![Van Den Berg, J. Johnnie](/user/assets/images/profile/no-profile-photo.png)
Agricultural Entomology
Environmental Sciences
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
160
94
0.588
* Total i10 Index Rankings
World Rank
51,968
Country Rank
223
Institution Rank : 21
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Norman Pammenter](/user/assets/images/profile/no-profile-photo.png)
plant ecophysiology
plant desiccation tolerance
seed biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
157
69
0.439
* Total i10 Index Rankings
World Rank
54,791
Country Rank
239
Institution Rank : 35
![](https://cdn.adscientificindex.com/logos/8529.jpg)
![South Africa](/flags/za.png)
![John S. Terblanche](https://cdn.adscientificindex.com/pictures/41/100317.jpg)
Evolutionary physiology - insect physiology - physiological plasticity
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
152
120
0.789
* Total i10 Index Rankings
World Rank
55,573
Country Rank
245
Institution Rank : 3
![](https://cdn.adscientificindex.com/logos/11472.jpg)
![South Africa](/flags/za.png)
![Louis Scott](https://cdn.adscientificindex.com/pictures/3e/101612.jpg)
Pollen analysis
palaeoscience
palynology
palaeoecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
151
105
0.695
* Total i10 Index Rankings
World Rank
61,989
Country Rank
274
Institution Rank : 62
![](https://cdn.adscientificindex.com/logos/10906.jpg)
![South Africa](/flags/za.png)
![Jill M. Farrant](https://cdn.adscientificindex.com/pictures/9e/100112.jpg)
Plant Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
142
101
0.711
* Total i10 Index Rankings
World Rank
62,328
Country Rank
276
Institution Rank : 38
![](https://cdn.adscientificindex.com/logos/8529.jpg)
![South Africa](/flags/za.png)
![Johann Kirsten](/user/assets/images/profile/no-profile-photo.png)
agricultural economics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
142
59
0.415
* Total i10 Index Rankings
World Rank
64,614
Country Rank
287
Institution Rank : 26
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![John Manning](https://cdn.adscientificindex.com/pictures/4d/4375128.jpg)
Plant systematics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
139
71
0.511
* Total i10 Index Rankings
World Rank
65,688
Country Rank
291
Institution Rank : 6
![](https://cdn.adscientificindex.com/logos/9040.png)
![South Africa](/flags/za.png)
![Dharini Sivakumar](/user/assets/images/profile/no-profile-photo.png)
Postharvest Technology of Fresh Produce
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
137
125
0.912
* Total i10 Index Rankings
World Rank
68,485
Country Rank
305
Institution Rank : 29
![](https://cdn.adscientificindex.com/logos/11125.png)
![South Africa](/flags/za.png)
![Paramu Mafongoya](https://cdn.adscientificindex.com/pictures/b3/88608.jpg)
Agronomy
Climate Science
Soil Science and Agroforestry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
134
103
0.769
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
544
![South Africa](/flags/za.png)
3
![](https://cdn.adscientificindex.com/logos/11299.jpg)
1
Mike Wingfield
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1,022
667
0.653
![](https://cdn.adscientificindex.com/logos/11299.jpg)
forest protection
mycology
entomology
biotechnology
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
12,027
![South Africa](/flags/za.png)
46
![](https://cdn.adscientificindex.com/logos/11125.png)
5
Steven D. Johnson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
309
240
0.777
![](https://cdn.adscientificindex.com/logos/11125.png)
Evolutionary biology
pollination biology
plant reproduction
chemical ecology
invasion biology
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
16,132
![South Africa](/flags/za.png)
65
![](https://cdn.adscientificindex.com/logos/11125.png)
7
Hussien Shimelis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
273
249
0.912
![](https://cdn.adscientificindex.com/logos/11125.png)
Plant Breeding
Plant Genetics
Quantitative Genetics
Crop Science
Agricultural Plant Sciences
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
17,538
![South Africa](/flags/za.png)
71
![](https://cdn.adscientificindex.com/logos/7293.jpg)
3
Christopher Mcquaid
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
264
170
0.644
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
19,039
![South Africa](/flags/za.png)
82
![](https://cdn.adscientificindex.com/logos/6427.png)
5
Olubukola Oluranti Babalola
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
254
242
0.953
![](https://cdn.adscientificindex.com/logos/6427.png)
Microbial Ecology
Soil Metagenomics
Plant-Microbe Interactions
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
24,313
![South Africa](/flags/za.png)
104
![](https://cdn.adscientificindex.com/logos/8529.jpg)
12
Umezuruike Linus Opara
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
227
216
0.952
![](https://cdn.adscientificindex.com/logos/8529.jpg)
Postharvest Technology
Food Science and Technology
Biosystems Engineering
Horticultural Science
Pomegranate
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
24,963
![South Africa](/flags/za.png)
109
![](https://cdn.adscientificindex.com/logos/11299.jpg)
8
Marthan Bester
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
225
109
0.484
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
27,590
![South Africa](/flags/za.png)
130
![](https://cdn.adscientificindex.com/logos/11125.png)
12
Mark Laing
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
214
176
0.822
![](https://cdn.adscientificindex.com/logos/11125.png)
Biological control
silicon in agriculture
plant breeding
African crops
climate change
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
29,673
![South Africa](/flags/za.png)
138
![](https://cdn.adscientificindex.com/logos/11498.jpg)
25
ETF Witkowski
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
207
139
0.671
![](https://cdn.adscientificindex.com/logos/11498.jpg)
Plant ecology
plant ecophysiology
conservation biology
invasion biology
ethnoecology
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
30,868
![South Africa](/flags/za.png)
140
![](https://cdn.adscientificindex.com/logos/15677.jpg)
2
Olaf LF Weyl
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
203
162
0.798
![](https://cdn.adscientificindex.com/logos/15677.jpg)
Inland Fisheries
Fish Biology
Freshwater Ecology
Invasion Ecology
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
39,730
![South Africa](/flags/za.png)
167
![](https://cdn.adscientificindex.com/logos/10906.jpg)
33
Charles Griffiths
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
180
110
0.611
![](https://cdn.adscientificindex.com/logos/10906.jpg)
Marine invertebrate biodiversity
marine alien species
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
39,954
![South Africa](/flags/za.png)
168
![](https://cdn.adscientificindex.com/logos/11497.jpg)
5
Ralf Henkel
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
179
155
0.866
![](https://cdn.adscientificindex.com/logos/11497.jpg)
Andrology
Oxidative stress
Medicinal Plants
reactive oxygen species
male infertility
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
40,328
![South Africa](/flags/za.png)
172
![](https://cdn.adscientificindex.com/logos/11299.jpg)
14
Hans P. Binswanger-Mkhize
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
179
67
0.374
![](https://cdn.adscientificindex.com/logos/11299.jpg)
Agricultural and Rural Development
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
40,959
![South Africa](/flags/za.png)
175
![](https://cdn.adscientificindex.com/logos/7293.jpg)
4
Martin P Hill
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
177
131
0.740
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
46,108
![South Africa](/flags/za.png)
196
![](https://cdn.adscientificindex.com/logos/10906.jpg)
38
M. Timm Hoffman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
167
93
0.557
![](https://cdn.adscientificindex.com/logos/10906.jpg)
Historical Ecology
Conservation Biology
Arid Lands
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
49,343
![South Africa](/flags/za.png)
206
![](https://cdn.adscientificindex.com/logos/11299.jpg)
18
Teresa Coutinho
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
161
116
0.720
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
50,038
![South Africa](/flags/za.png)
209
![](https://cdn.adscientificindex.com/logos/6427.png)
11
Van Den Berg, J. Johnnie
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
160
94
0.588
![](https://cdn.adscientificindex.com/logos/6427.png)
Agricultural Entomology
Environmental Sciences
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
51,968
![South Africa](/flags/za.png)
223
![](https://cdn.adscientificindex.com/logos/11125.png)
21
Norman Pammenter
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
157
69
0.439
![](https://cdn.adscientificindex.com/logos/11125.png)
plant ecophysiology
plant desiccation tolerance
seed biology
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
54,791
![South Africa](/flags/za.png)
239
![](https://cdn.adscientificindex.com/logos/8529.jpg)
35
John S. Terblanche
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
152
120
0.789
![](https://cdn.adscientificindex.com/logos/8529.jpg)
Evolutionary physiology - insect physiology - physiological plasticity
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
55,573
![South Africa](/flags/za.png)
245
![](https://cdn.adscientificindex.com/logos/11472.jpg)
3
Louis Scott
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
151
105
0.695
![](https://cdn.adscientificindex.com/logos/11472.jpg)
Pollen analysis
palaeoscience
palynology
palaeoecology
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
61,989
![South Africa](/flags/za.png)
274
![](https://cdn.adscientificindex.com/logos/10906.jpg)
62
Jill M. Farrant
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
142
101
0.711
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
62,328
![South Africa](/flags/za.png)
276
![](https://cdn.adscientificindex.com/logos/8529.jpg)
38
Johann Kirsten
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
142
59
0.415
![](https://cdn.adscientificindex.com/logos/8529.jpg)
agricultural economics
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
64,614
![South Africa](/flags/za.png)
287
![](https://cdn.adscientificindex.com/logos/11125.png)
26
John Manning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
139
71
0.511
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
65,688
![South Africa](/flags/za.png)
291
![](https://cdn.adscientificindex.com/logos/9040.png)
6
Dharini Sivakumar
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
137
125
0.912
![](https://cdn.adscientificindex.com/logos/9040.png)
Postharvest Technology of Fresh Produce
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
68,485
![South Africa](/flags/za.png)
305
![](https://cdn.adscientificindex.com/logos/11125.png)
29
Paramu Mafongoya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
134
103
0.769
![](https://cdn.adscientificindex.com/logos/11125.png)
Agronomy
Climate Science
Soil Science and Agroforestry