Total 2,403,032 scientists, country 221, and institutions 24,466 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Arthur Gessler](https://cdn.adscientificindex.com/pictures/4f/4606575.jpg)
Tree Physiology
Tree Ecophysiology
Plant physiological ecology
stable Isotopes
Plant Ecophysiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
275
240
0.873
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Rolf Siegwolf](https://cdn.adscientificindex.com/pictures/08/4606578.jpg)
Ecophysiology of plants
Carbon and water relations
Stable isotopes in ecology
Tree physiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
204
158
0.775
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Conedera Marco](https://cdn.adscientificindex.com/pictures/51/4606583.jpg)
Ecology
Forestry
Fire ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
192
129
0.672
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Christoph Scheidegger](https://cdn.adscientificindex.com/pictures/6f/4606581.jpg)
Biodiversity research
Conservation biology
Lichen biology
Population genetics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
178
94
0.528
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Catherine H. Graham](https://cdn.adscientificindex.com/pictures/cf/4606574.jpg)
Biogeography
Community Ecology
Ornithology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
149
132
0.886
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Marco Moretti](https://cdn.adscientificindex.com/pictures/ca/4606582.jpg)
Biodiversity
Community ecology
Trait-based ecology
Functional ecology
Urban ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
141
109
0.773
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Hoffmann, Maurice](https://cdn.adscientificindex.com/pictures/0c/4982871.jpg)
ecology
nature conservation
nature management
seed dispersal
herbivory
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
131
52
0.397
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Eckehard Brockerhoff](https://cdn.adscientificindex.com/pictures/55/4606579.jpg)
entomology
biodiversity
biological invasions
forest ecology
forestry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
128
96
0.750
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Peter Duelli](https://cdn.adscientificindex.com/pictures/90/4606585.jpg)
Entomologie
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
128
50
0.391
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Steffen Boch](https://cdn.adscientificindex.com/pictures/f2/4606925.jpg)
vegetation ecology
bryophytes
lichens
biological conservation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
120
109
0.908
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* Total i10 IndexRankings
Ranking Based On Selection: 11
![Steven A Wakelin](https://cdn.adscientificindex.com/pictures/0b/4408664.jpg)
Environmental microbiology
microbial ecology
ecotoxicology
soil biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
117
99
0.846
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Marcus Schaub](https://cdn.adscientificindex.com/pictures/a7/4606807.jpg)
Ecophysiology
forest ecosystems
experimental monitoring
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
76
0.768
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Dirk Maes](/user/assets/images/profile/no-profile-photo.png)
Conservation biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
60
0.606
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Joachim Mergeay](https://cdn.adscientificindex.com/pictures/8a/4982882.jpg)
population genetics
ecology
evolution
conservation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
58
0.716
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Claude Belpaire](/user/assets/images/profile/no-profile-photo.png)
Aquatic ecology
fish ecology
ecotoxicology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
43
0.544
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Tim Adriaens](/user/assets/images/profile/no-profile-photo.png)
Conservation Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
57
0.731
* Total i10 IndexRankings
Ranking Based On Selection: 17
![Anna M Hersperger](https://cdn.adscientificindex.com/pictures/30/4606630.jpg)
land change
landscape ecology
spatial planning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
69
0.908
* Total i10 IndexRankings
Ranking Based On Selection: 18
![Holger Gärtner](https://cdn.adscientificindex.com/pictures/bc/4606739.jpg)
Wood anatomy
Dendroecology
Tree roots
Geomorphology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
49
0.662
* Total i10 IndexRankings
Ranking Based On Selection: 19
![Dirk Bauwens](/user/assets/images/profile/no-profile-photo.png)
ecology herpetology animal behaviour
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
71
37
0.521
* Total i10 IndexRankings
Ranking Based On Selection: 20
![Ariel Bergamini](/user/assets/images/profile/no-profile-photo.png)
Biodiversity
conservation
monitoring
ecology
bryophytes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
65
0.929
* Total i10 IndexRankings
Ranking Based On Selection: 21
![Ayyoob Arpanaei](https://cdn.adscientificindex.com/pictures/7c/4408678.jpg)
nanobiotechnology
nanomedicine
nanobiocatalysts
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
42
0.824
* Total i10 IndexRankings
Ranking Based On Selection: 22
![Gianni Boris Pezzatti](/user/assets/images/profile/no-profile-photo.png)
fire statistics and ecology
bioinformatics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
38
0.809
* Total i10 IndexRankings
Ranking Based On Selection: 23
![Geert De Knijf](/user/assets/images/profile/no-profile-photo.png)
Freshwater ecology
Odonata
entomology
conservation
monitoring
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
18
0.409
* Total i10 IndexRankings
Ranking Based On Selection: 24
![Hans Van Calster](https://cdn.adscientificindex.com/pictures/50/4982881.jpg)
ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
32
0.865
* Total i10 IndexRankings
Ranking Based On Selection: 25
![An Vanden Broeck](https://cdn.adscientificindex.com/pictures/57/4982892.jpg)
conservation genetics
conservation biology
ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
20
0.541
Arthur Gessler
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
275
240
0.873
Tree Physiology
Tree Ecophysiology
Plant physiological ecology
stable Isotopes
Plant Ecophysiology
Rolf Siegwolf
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
204
158
0.775
Ecophysiology of plants
Carbon and water relations
Stable isotopes in ecology
Tree physiology
Conedera Marco
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
192
129
0.672
Christoph Scheidegger
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
178
94
0.528
Biodiversity research
Conservation biology
Lichen biology
Population genetics
Catherine H. Graham
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
149
132
0.886
Biogeography
Community Ecology
Ornithology
Marco Moretti
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
141
109
0.773
Biodiversity
Community ecology
Trait-based ecology
Functional ecology
Urban ecology
Hoffmann, Maurice
Research Institute for Nature and Forest
Geraardsbergen, Belgium
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
131
52
0.397
ecology
nature conservation
nature management
seed dispersal
herbivory
Eckehard Brockerhoff
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
128
96
0.750
entomology
biodiversity
biological invasions
forest ecology
forestry
Peter Duelli
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
128
50
0.391
Steffen Boch
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
120
109
0.908
vegetation ecology
bryophytes
lichens
biological conservation
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
Steven A Wakelin
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
117
99
0.846
Environmental microbiology
microbial ecology
ecotoxicology
soil biogeochemistry
Marcus Schaub
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
76
0.768
Ecophysiology
forest ecosystems
experimental monitoring
Dirk Maes
Research Institute for Nature and Forest
Geraardsbergen, Belgium
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
99
60
0.606
Joachim Mergeay
Research Institute for Nature and Forest
Geraardsbergen, Belgium
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
58
0.716
population genetics
ecology
evolution
conservation
Claude Belpaire
Research Institute for Nature and Forest
Geraardsbergen, Belgium
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
43
0.544
Aquatic ecology
fish ecology
ecotoxicology
Tim Adriaens
Research Institute for Nature and Forest
Geraardsbergen, Belgium
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
57
0.731
Anna M Hersperger
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
69
0.908
land change
landscape ecology
spatial planning
Holger Gärtner
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
49
0.662
Wood anatomy
Dendroecology
Tree roots
Geomorphology
Dirk Bauwens
Research Institute for Nature and Forest
Geraardsbergen, Belgium
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
71
37
0.521
ecology herpetology animal behaviour
Ariel Bergamini
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
65
0.929
Biodiversity
conservation
monitoring
ecology
bryophytes
Ayyoob Arpanaei
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
42
0.824
nanobiotechnology
nanomedicine
nanobiocatalysts
Gianni Boris Pezzatti
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
38
0.809
fire statistics and ecology
bioinformatics
Geert De Knijf
Research Institute for Nature and Forest
Geraardsbergen, Belgium
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
18
0.409
Freshwater ecology
Odonata
entomology
conservation
monitoring
Hans Van Calster
Research Institute for Nature and Forest
Geraardsbergen, Belgium
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
32
0.865
An Vanden Broeck
Research Institute for Nature and Forest
Geraardsbergen, Belgium
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
20
0.541
conservation genetics
conservation biology
ecology