Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Natural Products
Chemical Ecology
Drug Discovery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
436
420
0.963
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Political ecology
anthropology
plantations and monocultures
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
462
324
0.701
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Botánica
Ecología
Taxonomía
Sistemática
Orquideología
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
336
240
0.714
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Mycology
plant parasitic fungi
systematics
taxonomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99
80
0.808
Jonathan Parra Villalobos
Universidad Nacional Costa Rica
Sasn Pedro, Costa Rica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
436
420
0.963
Natural Products
Chemical Ecology
Drug Discovery
Andrés León Araya
Universidad Nacional Costa Rica
Sasn Pedro, Costa Rica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
462
324
0.701
Political ecology
anthropology
plantations and monocultures
Melania Fernandez Campos
Universidad Nacional Costa Rica
Sasn Pedro, Costa Rica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
336
240
0.714
Botánica
Ecología
Taxonomía
Sistemática
Orquideología
Melissa Mardones
Universidad Nacional Costa Rica
Sasn Pedro, Costa Rica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99
80
0.808
Mycology
plant parasitic fungi
systematics
taxonomy