Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 196 Scientists Citation Rankings - 2025

Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
United Kingdom
Mark W. Chase
angiosperm phylogenetics and evolution
orchid phylogenetics and evolution
Nicotian
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92,899
26,283
0.283
* Total Citation Counts Rankings
Ranking Based On Selection: 2
United Kingdom
Paul Kirk
Mycolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,462
21,368
0.441
* Total Citation Counts Rankings
Ranking Based On Selection: 3
United Kingdom
MF Fay
conservation genetics
population genetics
genomics
Orchidacea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,647
13,582
0.343
* Total Citation Counts Rankings
Ranking Based On Selection: 4
United Kingdom
Paul Kersey
Biology
Bioinformatic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,306
12,206
0.390
* Total Citation Counts Rankings
Ranking Based On Selection: 5
United Kingdom
Paula Rudall
Evolution of Plant For
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,554
10,104
0.342
* Total Citation Counts Rankings
Ranking Based On Selection: 6
United Kingdom
IJ Leitch
Genome size and chromosome diversity across plant
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,521
10,819
0.393
* Total Citation Counts Rankings
Ranking Based On Selection: 7
United Kingdom
Alexandre Antonelli
Neotropics
GGBC
Biodiversity
Biogeography
Conservatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,479
20,580
0.749
* Total Citation Counts Rankings
Ranking Based On Selection: 8
United Kingdom
Monique Simmonds
Plant and fungal chemistry
animal plant interactions
biological activity of compounds
medicinal plants
cosmetic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,841
7,131
0.312
* Total Citation Counts Rankings
Ranking Based On Selection: 9
United Kingdom
Irina S. Druzhinina
Fungal biology
evolution
speciation
fungal genomics
fitnes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,844
9,049
0.507

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* Total Citation Counts Rankings
Ranking Based On Selection: 10
United Kingdom
William J. Baker
Biodiversity
angiosperms
palms
phylogeny
systematic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,877
10,397
0.616
* Total Citation Counts Rankings
Ranking Based On Selection: 11
United Kingdom
Felix Forest
Plant evolutionary biology
phylogenetic diversity
Cape flora
EDGE plant
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,684
10,207
0.612
* Total Citation Counts Rankings
Ranking Based On Selection: 12
United Kingdom
Maria (Bat) S. Vorontsova
grasses
taxonomy
evolution
Madagascar
Afric
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,509
9,404
0.570
* Total Citation Counts Rankings
Ranking Based On Selection: 13
United Kingdom
Paul Cannon
Fungal systematic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,964
5,747
0.360
* Total Citation Counts Rankings
Ranking Based On Selection: 14
United Kingdom
Gwilym P. Lewis
Plant systematic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,756
7,131
0.453
* Total Citation Counts Rankings
Ranking Based On Selection: 15
United Kingdom
Tuula Niskanen
mycology
biodiversity
taxonomy
evolution
barcodin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,700
9,396
0.598
* Total Citation Counts Rankings
Ranking Based On Selection: 16
United Kingdom
Kare Liimatainen
fungi taxonomy barcoding evolutio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,728
9,127
0.620
* Total Citation Counts Rankings
Ranking Based On Selection: 17
United Kingdom
John Dransfield
botany
conservation
Madagascar
Arecacea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,658
5,456
0.372
* Total Citation Counts Rankings
Ranking Based On Selection: 18
United Kingdom
Rafaël Govaerts
Botany
Taxonomy
Nomenclature
Biogeograph
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,199
7,718
0.544
* Total Citation Counts Rankings
Ranking Based On Selection: 19
United Kingdom
Pritchard Hw
seed biology
plant conservation
comparative biology
cryopreservatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,800
6,074
0.440
* Total Citation Counts Rankings
Ranking Based On Selection: 20
United Kingdom
Philip C Stevenson
chemical ecology
pollination
ecological pest management
phytochemistry
ecosystem service
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,503
7,586
0.562
* Total Citation Counts Rankings
Ranking Based On Selection: 21
United Kingdom
Eimear Nic Lughadha
Plant Diversity
Conservation Assessmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,295
9,019
0.678
* Total Citation Counts Rankings
Ranking Based On Selection: 22
United Kingdom
Justin Moat
Spatial analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,762
7,485
0.587
* Total Citation Counts Rankings
Ranking Based On Selection: 23
United Kingdom
Laura Kelly
Evolutionary Biology
Plant Health
Genome Evolution
Phylogenetic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,813
5,827
0.493
* Total Citation Counts Rankings
Ranking Based On Selection: 24
United Kingdom
Richard Bateman
botany
palaeobotany
evolution
speciation
systematic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,668
3,227
0.277
* Total Citation Counts Rankings
Ranking Based On Selection: 25
United Kingdom
Brian Douglas
Fungi
fungal ecology and conservation
taxonomy
phylogenetics
endophytes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,338
6,233
0.550
* Total Citation Counts Rankings
Rankings
3,921
United Kingdom
318
1
Ranking Based On Selection: 1
Mark W. Chase
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92,899
26,283
0.283
angiosperm phylogenetics and evolution
orchid phylogenetics and evolution
Nicotian
* Total Citation Counts Rankings
Rankings
11,354
United Kingdom
991
2
Ranking Based On Selection: 2
Paul Kirk
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,462
21,368
0.441
* Total Citation Counts Rankings
Rankings
15,742
United Kingdom
1,379
3
Ranking Based On Selection: 3
MF Fay
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,647
13,582
0.343
conservation genetics
population genetics
genomics
Orchidacea
* Total Citation Counts Rankings
Rankings
22,689
United Kingdom
2,001
4
Ranking Based On Selection: 4
Paul Kersey
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,306
12,206
0.390
* Total Citation Counts Rankings
Rankings
24,799
United Kingdom
2,171
5
Ranking Based On Selection: 5
Paula Rudall
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,554
10,104
0.342
* Total Citation Counts Rankings
Rankings
27,617
United Kingdom
2,402
6
Ranking Based On Selection: 6
IJ Leitch
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,521
10,819
0.393
* Total Citation Counts Rankings
Rankings
27,697
United Kingdom
2,411
7
Ranking Based On Selection: 7
Alexandre Antonelli
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,479
20,580
0.749
Neotropics
GGBC
Biodiversity
Biogeography
Conservatio
* Total Citation Counts Rankings
Rankings
36,168
United Kingdom
3,179
8
Ranking Based On Selection: 8
Monique Simmonds
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,841
7,131
0.312
Plant and fungal chemistry
animal plant interactions
biological activity of compounds
medicinal plants
cosmetic
* Total Citation Counts Rankings
Rankings
50,947
United Kingdom
4,413
9
Ranking Based On Selection: 9
Irina S. Druzhinina
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,844
9,049
0.507
Fungal biology
evolution
speciation
fungal genomics
fitnes
* Total Citation Counts Rankings
Rankings
54,875
United Kingdom
4,720
10
Ranking Based On Selection: 10
William J. Baker
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,877
10,397
0.616
Biodiversity
angiosperms
palms
phylogeny
systematic

Smart Institutional Plan

Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.

* Total Citation Counts Rankings
Rankings
55,746
United Kingdom
4,803
11
Ranking Based On Selection: 11
Felix Forest
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,684
10,207
0.612
Plant evolutionary biology
phylogenetic diversity
Cape flora
EDGE plant
* Total Citation Counts Rankings
Rankings
56,513
United Kingdom
4,865
12
Ranking Based On Selection: 12
Maria (Bat) S. Vorontsova
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,509
9,404
0.570
* Total Citation Counts Rankings
Rankings
59,093
United Kingdom
5,075
13
Ranking Based On Selection: 13
Paul Cannon
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,964
5,747
0.360
* Total Citation Counts Rankings
Rankings
60,178
United Kingdom
5,161
14
Ranking Based On Selection: 14
Gwilym P. Lewis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,756
7,131
0.453
* Total Citation Counts Rankings
Rankings
60,475
United Kingdom
5,182
15
Ranking Based On Selection: 15
Tuula Niskanen
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,700
9,396
0.598
mycology
biodiversity
taxonomy
evolution
barcodin
* Total Citation Counts Rankings
Rankings
65,672
United Kingdom
5,644
16
Ranking Based On Selection: 16
Kare Liimatainen
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,728
9,127
0.620
* Total Citation Counts Rankings
Rankings
66,110
United Kingdom
5,666
17
Ranking Based On Selection: 17
John Dransfield
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,658
5,456
0.372
* Total Citation Counts Rankings
Rankings
68,940
United Kingdom
5,911
18
Ranking Based On Selection: 18
Rafaël Govaerts
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,199
7,718
0.544
* Total Citation Counts Rankings
Rankings
71,470
United Kingdom
6,117
19
Ranking Based On Selection: 19
Pritchard Hw
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,800
6,074
0.440
seed biology
plant conservation
comparative biology
cryopreservatio
* Total Citation Counts Rankings
Rankings
73,450
United Kingdom
6,279
20
Ranking Based On Selection: 20
Philip C Stevenson
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,503
7,586
0.562
chemical ecology
pollination
ecological pest management
phytochemistry
ecosystem service
* Total Citation Counts Rankings
Rankings
74,890
United Kingdom
6,379
21
Ranking Based On Selection: 21
Eimear Nic Lughadha
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,295
9,019
0.678
* Total Citation Counts Rankings
Rankings
78,712
United Kingdom
6,731
22
Ranking Based On Selection: 22
Justin Moat
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,762
7,485
0.587
* Total Citation Counts Rankings
Rankings
86,525
United Kingdom
7,313
23
Ranking Based On Selection: 23
Laura Kelly
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,813
5,827
0.493
Evolutionary Biology
Plant Health
Genome Evolution
Phylogenetic
* Total Citation Counts Rankings
Rankings
87,826
United Kingdom
7,410
24
Ranking Based On Selection: 24
Richard Bateman
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,668
3,227
0.277
botany
palaeobotany
evolution
speciation
systematic
* Total Citation Counts Rankings
Rankings
90,917
United Kingdom
7,641
25
Ranking Based On Selection: 25
Brian Douglas
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,338
6,233
0.550
Fungi
fungal ecology and conservation
taxonomy
phylogenetics
endophytes