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. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :1
Microbiology
Microbial Ecology
Environmental Sciences
Taxonomy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
419
310
0.740
* Total i10 IndexRankings
Ranking Based On Selection :2
microbial ecology
biogeochemistry
microbial physiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
267
203
0.760
* Total i10 IndexRankings
Ranking Based On Selection :3
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
182
171
0.940
* Total i10 IndexRankings
Ranking Based On Selection :4
Marine Biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
79
0.693
* Total i10 IndexRankings
Ranking Based On Selection :5
marine microbial ecology
plankton
flow cytometry
in situ hybridization
phylogeny
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
113
94
0.832
* Total i10 IndexRankings
Ranking Based On Selection :6
Nutrient cycling
Isotope analytics
Marine biogeochemistry
Global change
Microbial processes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
111
101
0.910
* Total i10 IndexRankings
Ranking Based On Selection :7
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
82
0.872
* Total i10 IndexRankings
Ranking Based On Selection :8
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
92
77
0.837
* Total i10 IndexRankings
Ranking Based On Selection :9
microbial physiology
methane
environmental microbiology
nitrogen cycle
anammox
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
78
0.929
* Total i10 IndexRankings
Ranking Based On Selection :10
spatial metabolomics
symbiosis
host-microbe interactions
mass spectrometry imaging
marine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
58
0.853
* Total i10 IndexRankings
Ranking Based On Selection :11
Microbial hydrocarbon metabolism
marine microbiology and biochemistry
geochemistry
archaea
molecular ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
51
0.962
* Total i10 IndexRankings
Ranking Based On Selection :12
Marine Biology
Symbiosis
Evolution
Ecophysiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
32
0.865
* Total i10 IndexRankings
Ranking Based On Selection :13
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
30
0.968
* Total i10 IndexRankings
Ranking Based On Selection :14
Modelling
Biogeochemistry
Microbiology
Marine Aggregates
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
* Total i10 IndexRankings
Ranking Based On Selection :15
microbial ecology
microbial physiology
bioinformatics
(meta)genomics
nitrogen cycle
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
29
0.967
* Total i10 IndexRankings
Ranking Based On Selection :16
Diversity
ecology
and evolution of marine chemosynthetic symbioses
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
28
1.000
* Total i10 IndexRankings
Ranking Based On Selection :17
marine nitrogen cycle
biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
27
0.964
* Total i10 IndexRankings
Ranking Based On Selection :18
Microbial Diversity
Microbial Ecology
Deep Sea Ecology
Polar Biology
Microbial biogeography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
23
0.885
* Total i10 IndexRankings
Ranking Based On Selection :19
microbiology
greenhouse gases
biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
23
0.920
* Total i10 IndexRankings
Ranking Based On Selection :20
Virology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
19
0.905
* Total i10 IndexRankings
Ranking Based On Selection :21
Microbiology
Symbiosis
Marine Biology
Ecology
Imaging
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
17
0.810
* Total i10 IndexRankings
Ranking Based On Selection :22
Microbial Ecology
Bioinformatics
Metagenomics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
* Total i10 IndexRankings
Ranking Based On Selection :23
Molecular Ecology
Microbiology
Marine Biology
Environmental Sciences
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
18
1.000
* Total i10 IndexRankings
Ranking Based On Selection :24
Benthic ecosystems and environmental change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
15
0.833
* Total i10 IndexRankings
Ranking Based On Selection :25
symbiosis evolution
marine biology
microbial ecology
coral reef
coral disease
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
14
0.824
Rudolf Amann
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
419
310
0.740
Microbiology
Microbial Ecology
Environmental Sciences
Taxonomy
Dirk De Beer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
267
203
0.760
microbial ecology
biogeochemistry
microbial physiology
Marcel Kuypers
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
182
171
0.940
Timothy Ferdelman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
79
0.693
Marine Biogeochemistry
Bernhard M Fuchs
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
113
94
0.832
marine microbial ecology
plankton
flow cytometry
in situ hybridization
phylogeny
Gaute Lavik
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
111
101
0.910
Nutrient cycling
Isotope analytics
Marine biogeochemistry
Global change
Microbial processes
Frank Wenzhoefer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
94
82
0.872
Nicole Dubilier
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
92
77
0.837
Boran Kartal
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
78
0.929
microbial physiology
methane
environmental microbiology
nitrogen cycle
anammox
Manuel Liebeke
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
58
0.853
spatial metabolomics
symbiosis
host-microbe interactions
mass spectrometry imaging
marine
Gunter Wegener
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
51
0.962
Microbial hydrocarbon metabolism
marine microbiology and biochemistry
geochemistry
archaea
molecular ecology
Harald Ronald Gruber-Vodicka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
32
0.865
Marine Biology
Symbiosis
Evolution
Ecophysiology
Hannah K Marchant
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
30
0.968
Soeren Ahmerkamp
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
Modelling
Biogeochemistry
Microbiology
Marine Aggregates
Daan R. Speth
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
29
0.967
microbial ecology
microbial physiology
bioinformatics
(meta)genomics
nitrogen cycle
Jillian M. Petersen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
28
1.000
Diversity
ecology
and evolution of marine chemosynthetic symbioses
Wiebke Mohr
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
27
0.964
marine nitrogen cycle
biogeochemistry
Christina Bienhold
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
23
0.885
Microbial Diversity
Microbial Ecology
Deep Sea Ecology
Polar Biology
Microbial biogeography
Jana Milucka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
23
0.920
microbiology
greenhouse gases
biogeochemistry
Susanne Erdmann
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
19
0.905
Niko Leisch
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
17
0.810
Microbiology
Symbiosis
Marine Biology
Ecology
Imaging
Luis H. Orellana (Coto)|Coto Orellana, Luis Orellana
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
Microbial Ecology
Bioinformatics
Metagenomics
Greta Reintjes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
18
1.000
Molecular Ecology
Microbiology
Marine Biology
Environmental Sciences
Dirk Koopmans
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
15
0.833
Benthic ecosystems and environmental change
Yui Sato
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
14
0.824
symbiosis evolution
marine biology
microbial ecology
coral reef
coral disease