The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the 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
Vegetation ecology
Fire ecology
Invasive plant biology
Conservation management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,201
1,360
0.618
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Forest Silviculture
Vegetation Management
Coppice Management
Plantation Regeneration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,782
684
0.384
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Plant Ecology
Vegetation Science
Biogeography
Macroecology
Macroevolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
184
168
0.913
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Plant chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49
49
1.000
Tineke Kraaij
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,201
1,360
0.618
Vegetation ecology
Fire ecology
Invasive plant biology
Conservation management
Little KM
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,782
684
0.384
Forest Silviculture
Vegetation Management
Coppice Management
Plantation Regeneration
B. Adriaan Grobler|Barend Adriaan Grobler, Adriaan Grobler
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
184
168
0.913
Plant Ecology
Vegetation Science
Biogeography
Macroecology
Macroevolution
Buyiswa Hlangothi
Nelson Mandela University
Port Elizabeth, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49
49
1.000