University, Subject, Country, Region, World
World Wildlife Fund 22 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jun 07, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.121.289) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Conservation science
environmental economics
ecosystem services
landscape ecology
wildlife ecolog
Metrics
H-Index
i10 Index
Citation Counts
61
98
19,404
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* Total H IndexRankings
Ranking Based On Selection: 2
Conservation Biolog
Metrics
H-Index
i10 Index
Citation Counts
58
100
23,714
* Total H IndexRankings
Ranking Based On Selection: 3
Freshwater conservation
Conservation planning
Rivers
Freshwater fish biolog
Metrics
H-Index
i10 Index
Citation Counts
35
57
12,684
* Total H IndexRankings
Ranking Based On Selection: 4
freshwater ecology
floodplains
sustainable hydropower
environmental flows
fisherie
Metrics
H-Index
i10 Index
Citation Counts
34
57
7,182
* Total H IndexRankings
Ranking Based On Selection: 5
Metrics
H-Index
i10 Index
Citation Counts
34
46
20,357
* Total H IndexRankings
Ranking Based On Selection: 6
Marine Ecology
Conservation Biology
Coral Reefs
Marine Protected Area
Metrics
H-Index
i10 Index
Citation Counts
31
56
4,783
* Total H IndexRankings
Ranking Based On Selection: 7
marine conservation
marine protected areas
coral reefs
mangrove forests
invasive lionfis
Metrics
H-Index
i10 Index
Citation Counts
29
44
2,190
* Total H IndexRankings
Ranking Based On Selection: 8
Rights and justice
protected and conserved areas
OECM
Metrics
H-Index
i10 Index
Citation Counts
25
39
4,857
* Total H IndexRankings
Ranking Based On Selection: 9
Metrics
H-Index
i10 Index
Citation Counts
24
27
6,148
* Total H IndexRankings
Ranking Based On Selection: 10
Conservation Biolog
Metrics
H-Index
i10 Index
Citation Counts
22
30
16,495
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* Total H IndexRankings
Ranking Based On Selection: 11
Coral reefs
ridge-to-reef management
sustainable fisheries
MPAs
ecosystem service
Metrics
H-Index
i10 Index
Citation Counts
19
24
1,711
* Total H IndexRankings
Ranking Based On Selection: 12
Machine Learning
Artificial Intelligence
biodiversity
conservation
data integratio
Metrics
H-Index
i10 Index
Citation Counts
19
27
32,618
* Total H IndexRankings
Ranking Based On Selection: 13
Marine Ecology
Coral Reefs
Fisheries
Area-Based Conservation
Monitoring & Evaluatio
Metrics
H-Index
i10 Index
Citation Counts
18
28
1,426
* Total H IndexRankings
Ranking Based On Selection: 14
Climate Change
Forests
Deforestation
Forest Degradation
Biomass mappin
Metrics
H-Index
i10 Index
Citation Counts
18
21
1,256
* Total H IndexRankings
Ranking Based On Selection: 15
wildlife conservation
wildlife monitoring
adaptive management
environmental DN
Metrics
H-Index
i10 Index
Citation Counts
16
20
1,048
* Total H IndexRankings
Ranking Based On Selection: 16
Biodiversity
Area-based conservation
PADDD
Nature Positive
Transformative Chang
Metrics
H-Index
i10 Index
Citation Counts
15
17
1,085
* Total H IndexRankings
Ranking Based On Selection: 17
Metrics
H-Index
i10 Index
Citation Counts
12
13
1,421
* Total H IndexRankings
Ranking Based On Selection: 18
Variou
Metrics
H-Index
i10 Index
Citation Counts
10
11
490
* Total H IndexRankings
Ranking Based On Selection: 19
Biodiversity
ecosystem services
ecology
forests
restoratio
Metrics
H-Index
i10 Index
Citation Counts
9
9
346
* Total H IndexRankings
Ranking Based On Selection: 20
Animal Migration
Conservation Biology
Herpetology
Bison
Grassland Restoratio
Metrics
H-Index
i10 Index
Citation Counts
6
6
146
* Total H IndexRankings
Ranking Based On Selection: 21
Working landscape conservation
environmental anthropology
political ecolog
Metrics
H-Index
i10 Index
Citation Counts
5
2
58
* Total H IndexRankings
Ranking Based On Selection: 22
conservation biology
communications
social medi
Metrics
H-Index
i10 Index
Citation Counts
3
3
43
Robin Naidoo
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
61
98
19,404
Conservation science
environmental economics
ecosystem services
landscape ecology
wildlife ecolog
Gvn Powell
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
58
100
23,714
Michele Thieme
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
35
57
12,684
Freshwater conservation
Conservation planning
Rivers
Freshwater fish biolog
Jeffrey J. Opperman
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
34
57
7,182
freshwater ecology
floodplains
sustainable hydropower
environmental flows
fisherie
Colby Loucks
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
34
46
20,357
Gabby Ahmadia
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
31
56
4,783
Marine Ecology
Conservation Biology
Coral Reefs
Marine Protected Area
Dominic A Andradi-Brown
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
29
44
2,190
marine conservation
marine protected areas
coral reefs
mangrove forests
invasive lionfis
Harry D. Jonas
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
25
39
4,857
Rights and justice
protected and conserved areas
OECM
Derric Pennington
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
24
27
6,148
John C. Morrison
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
22
30
16,495
Is Your University Ready for the Future?
Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
Lida Teneva
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
19
24
1,711
Coral reefs
ridge-to-reef management
sustainable fisheries
MPAs
ecosystem service
David Thau
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
19
27
32,618
Machine Learning
Artificial Intelligence
biodiversity
conservation
data integratio
Abel Valdivia
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
18
28
1,426
Marine Ecology
Coral Reefs
Fisheries
Area-Based Conservation
Monitoring & Evaluatio
Naikoa Aguilar-Amuchastegui
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
18
21
1,256
Climate Change
Forests
Deforestation
Forest Degradation
Biomass mappin
Arnaud Lyet
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
16
20
1,048
wildlife conservation
wildlife monitoring
adaptive management
environmental DN
Rachel E Golden Kroner
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
15
17
1,085
Biodiversity
Area-based conservation
PADDD
Nature Positive
Transformative Chang
Sybille Klenzendorf
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
12
13
1,421
John Farrington
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
10
11
490
Craig Beatty
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
9
9
346
Dennis Jorgensen
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
6
6
146
Animal Migration
Conservation Biology
Herpetology
Bison
Grassland Restoratio
Daniel J Read
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
5
2
58
Working landscape conservation
environmental anthropology
political ecolog
Danielle Brigida
World Wildlife Fund
Washington, United States
Metrics
H-Index
i10-Index
Citation Counts
3
3
43
conservation biology
communications
social medi