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
E-commerce
E-Services
Social Media
Misinformation
Fake News
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
67
0.870
* Total i10 IndexRankings
Ranking Based On Selection :2
marine ecology
coral disease
coral reef restoration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
35
0.795
* Total i10 IndexRankings
Ranking Based On Selection :3
Health Disparities
Civic Engagement
Youth Substance Use Prevention
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
20
0.870
* Total i10 IndexRankings
Ranking Based On Selection :4
Evolutionary Biology / Marine Invertebrates
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
* Total i10 IndexRankings
Ranking Based On Selection :5
maritime archaeology
underwater cultural heritage
pacific archaeology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
10
0.500
* Total i10 IndexRankings
Ranking Based On Selection :6
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
4
0.211
* Total i10 IndexRankings
Ranking Based On Selection :7
evolutionary genomics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total i10 IndexRankings
Ranking Based On Selection :8
coral reef ecology
coral reef monitoring
coral reef restoration
coral taxonomy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
* Total i10 IndexRankings
Ranking Based On Selection :9
Invertebrate Zoology
Carcinology
Malacology
Conservation Biology
Reproductive Life Histories
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
5
0.556
* Total i10 IndexRankings
Ranking Based On Selection :10
Population Genomics
Evolutionary Biology
Marine Invertebrates
Coral Reefs
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
* Total i10 IndexRankings
Ranking Based On Selection :11
Guam
Tourism
Micronesia
Culture
Asia Pacific
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Total i10 IndexRankings
Ranking Based On Selection :12
philosophy
Chinese philosophy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
1
0.200
* Total i10 IndexRankings
Ranking Based On Selection :13
Anthropology
History
Mariana Islands
Pacific
Mimetic Theory.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
2
0.500
* Total i10 IndexRankings
Ranking Based On Selection :14
culturally responsive literacy instruction
Online learning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
2
0.667
* Total i10 IndexRankings
Ranking Based On Selection :15
Early Caribbean studies
Early American studies
17th- and 18th-century British literature
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
* Total i10 IndexRankings
Ranking Based On Selection :16
Marine Ecology
Integrative Biology
Conservation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection :17
Organization Development
Leadership
Behavioral Science
Coaching
Operational Excellence
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection :18
Marine Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection :19
Biomedical Equipment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection :20
marine biology
invertebrate genomics
population genetics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection :21
instructional technology
educational technology
IT
ed tech
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
0
0.000
* Total i10 IndexRankings
Ranking Based On Selection :22
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection :23
Geology
Geothermal
Speleology
Water Resources
GIS
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection :24
Communication Studies
Performance Studies
Intercultural Communication
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 IndexRankings
Ranking Based On Selection :25
island ecology
evolution
conservation
ethnobotany
agroforestry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Kevin KW Ho CW|Kevin Kai Wing Ho, Kevin Ho
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
67
0.870
E-commerce
E-Services
Social Media
Misinformation
Fake News
Laurie Raymundo
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
35
0.795
marine ecology
coral disease
coral reef restoration
Francis Dalisay
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
20
0.870
Health Disparities
Civic Engagement
Youth Substance Use Prevention
Sarah Lemer
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
Evolutionary Biology / Marine Invertebrates
Bill Jeffery
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
10
0.500
maritime archaeology
underwater cultural heritage
pacific archaeology
Donald H Rubinstein
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
4
0.211
David Combosch
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
Dave Burdick
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
coral reef ecology
coral reef monitoring
coral reef restoration
coral taxonomy
G. Curt Fiedler
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
5
0.556
Invertebrate Zoology
Carcinology
Malacology
Conservation Biology
Reproductive Life Histories
Carlos Leiva
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Population Genomics
Evolutionary Biology
Marine Invertebrates
Coral Reefs
Fred R. Schumann
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
Guam
Tourism
Micronesia
Culture
Asia Pacific
James Daryl Sellmann
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
1
0.200
philosophy
Chinese philosophy
David Atienza De Frutos
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
2
0.500
Anthropology
History
Mariana Islands
Pacific
Mimetic Theory.
Catherine Stoicovy
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
2
0.667
culturally responsive literacy instruction
Online learning
Thomas Krise
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
Early Caribbean studies
Early American studies
17th- and 18th-century British literature
Colin J Anthony
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Marine Ecology
Integrative Biology
Conservation
Albert Valentine
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Organization Development
Leadership
Behavioral Science
Coaching
Operational Excellence
D'Amy N. Steward
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Bernadette Gurwan Tharngan
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Kenzie Pollard
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
marine biology
invertebrate genomics
population genetics
Jacqui Cyrus
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
0
0.000
instructional technology
educational technology
IT
ed tech
Colin Lock
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Maria Jhonnie Villareal
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Geology
Geothermal
Speleology
Water Resources
GIS
Hunter Fine
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Communication Studies
Performance Studies
Intercultural Communication
Charles Paulino, Jr
University of Guam
Mangilao, Guam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
island ecology
evolution
conservation
ethnobotany
agroforestry