Subject Rankings

International Union for Conservation of Nature Subject Rankings 2025

Agriculture and Forestry, Architecture and Design, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings along with their 197 sub-branches, can be analyzed at global, national, and regional levels. You can also evaluate them based on the i10 index and citation numbersAs of Sep 18, 2024, rankings are according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in beta. This is due to the exclusion of (1.014.193) scientists categorized under 'others,' whose profiles cannot yet be determined, edited, or classified. As these fields are updated, the rankings will adjust accordingly. Please keep this in mind. See Also: [University Subject Rankings]

* Total H IndexRankings
Ranking Based On Selection :1
Thomas Brooks
Conservation Biology
Biodiversity
Extinction
Ecology
Ornithology
Metrics
H-Index
i10 Index
Citation Counts
93
206
58,673
* Total H IndexRankings
Ranking Based On Selection :3
Juha Siikamäki
environmental and resource economics
Metrics
H-Index
i10 Index
Citation Counts
26
46
6,273
* Total H IndexRankings
Ranking Based On Selection :4
Kevin Smith
Conservation Biology
Invasion biology
Metrics
H-Index
i10 Index
Citation Counts
25
27
4,443
* Total H IndexRankings
Ranking Based On Selection :6
Annabelle Cuttelod
Conservation Biology
Key Biodiversity Areas
Metrics
H-Index
i10 Index
Citation Counts
19
21
4,754
* Total H IndexRankings
Ranking Based On Selection :7
Ana Luisa Nunes
Freshwater Biology
Biological Invasions
Evolutionary Ecology
Metrics
H-Index
i10 Index
Citation Counts
19
21
1,502
* Total H IndexRankings
Ranking Based On Selection :8
Oliver Tallowin
Conservation
Wildlife Trade
Metrics
H-Index
i10 Index
Citation Counts
14
15
1,376
* Total H IndexRankings
Ranking Based On Selection :9
Alain Ndoli
Agroforestry
Soil science
General Agronomy
Metrics
H-Index
i10 Index
Citation Counts
13
13
547
* Total H IndexRankings
Ranking Based On Selection :10
Randall R. Jiménez
Microbial Ecology
Biostatistics
Spatial Ecology
Amphibians
Conservation
Metrics
H-Index
i10 Index
Citation Counts
12
13
573
* Total H IndexRankings
Ranking Based On Selection :11
Bruno Leles
Ecology
Protected Areas
Conservation
Metrics
H-Index
i10 Index
Citation Counts
12
12
479
* Total H IndexRankings
Ranking Based On Selection :12
Matias Piaggio
Environmental and Resource Economics
Metrics
H-Index
i10 Index
Citation Counts
11
12
577
* Total H IndexRankings
Ranking Based On Selection :13
Ananda Mallawatantri
Environment
Ecosystem based Risk Reduction
Climate Change and Participatory Approaches in Development
Metrics
H-Index
i10 Index
Citation Counts
10
10
620
* Total H IndexRankings
Ranking Based On Selection :14
Satrio A Wicaksono
forest and land policy
sustainability
climate science
Metrics
H-Index
i10 Index
Citation Counts
8
7
279
* Total H IndexRankings
Ranking Based On Selection :17
Ken Kassem
environment
sustainability
coral reefs
tropical fisheries
climate change
Metrics
H-Index
i10 Index
Citation Counts
6
6
317
* Total H IndexRankings
Ranking Based On Selection :20
Rio Doce Panel
impact assessment
ecosystem restoration
nature-based solutions
ecology economy
water management
Metrics
H-Index
i10 Index
Citation Counts
2
0
16
* Total H IndexRankings
Ranking Based On Selection :21
Md Mohsin Kabir
Raptor Research
Zoonotic Disease
GIS
Metrics
H-Index
i10 Index
Citation Counts
2
0
8
* Total H IndexRankings
Ranking Based On Selection :22
Lynn Sorrentino
sharks
marine plastic pollution
Metrics
H-Index
i10 Index
Citation Counts
1
1
43
* Total H IndexRankings
Ranking Based On Selection :23
Daisy Hessenberger
biodiversity
conservation
epigenetics
evolutionary theory
Metrics
H-Index
i10 Index
Citation Counts
1
0
7
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Thomas Brooks
Metrics
H-Index
i10-Index
Citation Counts
93
206
58,673
Conservation Biology
Biodiversity
Extinction
Ecology
Ornithology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Stephen Woodley
Metrics
H-Index
i10-Index
Citation Counts
36
69
7,034
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Juha Siikamäki
Metrics
H-Index
i10-Index
Citation Counts
26
46
6,273
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Kevin Smith
Metrics
H-Index
i10-Index
Citation Counts
25
27
4,443
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Catherine Numa
Metrics
H-Index
i10-Index
Citation Counts
24
36
2,270
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Annabelle Cuttelod
Metrics
H-Index
i10-Index
Citation Counts
19
21
4,754
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Ana Luisa Nunes
Metrics
H-Index
i10-Index
Citation Counts
19
21
1,502
Freshwater Biology
Biological Invasions
Evolutionary Ecology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Oliver Tallowin
Metrics
H-Index
i10-Index
Citation Counts
14
15
1,376
Conservation
Wildlife Trade
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Alain Ndoli
Metrics
H-Index
i10-Index
Citation Counts
13
13
547
Agroforestry
Soil science
General Agronomy
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Randall R. Jiménez
Metrics
H-Index
i10-Index
Citation Counts
12
13
573
Microbial Ecology
Biostatistics
Spatial Ecology
Amphibians
Conservation
* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Bruno Leles
Metrics
H-Index
i10-Index
Citation Counts
12
12
479
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Matias Piaggio
Metrics
H-Index
i10-Index
Citation Counts
11
12
577
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Ananda Mallawatantri
Metrics
H-Index
i10-Index
Citation Counts
10
10
620
Environment
Ecosystem based Risk Reduction
Climate Change and Participatory Approaches in Development
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Satrio A Wicaksono
Metrics
H-Index
i10-Index
Citation Counts
8
7
279
forest and land policy
sustainability
climate science
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Aurélie Spadone
Metrics
H-Index
i10-Index
Citation Counts
8
8
280
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Ken Kassem
Metrics
H-Index
i10-Index
Citation Counts
6
6
317
environment
sustainability
coral reefs
tropical fisheries
climate change
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Peter Hanington
Metrics
H-Index
i10-Index
Citation Counts
5
5
122
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Md Anisur Rahman
Metrics
H-Index
i10-Index
Citation Counts
5
2
75
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Rio Doce Panel
Metrics
H-Index
i10-Index
Citation Counts
2
0
16
impact assessment
ecosystem restoration
nature-based solutions
ecology economy
water management
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Md Mohsin Kabir
Metrics
H-Index
i10-Index
Citation Counts
2
0
8
Raptor Research
Zoonotic Disease
GIS
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Lynn Sorrentino
Metrics
H-Index
i10-Index
Citation Counts
1
1
43
sharks
marine plastic pollution
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Daisy Hessenberger
Metrics
H-Index
i10-Index
Citation Counts
1
0
7
biodiversity
conservation
epigenetics
evolutionary theory