A scientist's position in the ranking is determined by their D-index (Discipline H-index), a refined bibliometric measure that considers citations and publications exclusively within the examined discipline—in this case, Ecology and Evolution. This approach ensures that the ranking accurately reflects research impact specific to the relevant scientific field.
Scope of Research and Inclusion Criteria
Across all disciplines, a total of 279,971 scientist profiles were examined, identified through diverse bibliometric data sources. Specifically, 6 scientists within the Ecology and Evolution discipline were analyzed to compile the focused ranking.
To qualify for inclusion, a researcher must have a D-index of at least 30, and a majority of their tier publications must be concentrated within the area of Ecology and Evolution. Furthermore, awards and professional achievements in Ecology and Evolution are factored into the overall assessment, reinforcing the rigor and relevance of the list.
The threshold for the D-index is dynamically adjusted in increments of 10 based on the estimated number of scholars in each discipline. This calibration ensures representation of the top 1% of leading experts in the ranking. An additional inclusion criterion requires that the proximity between a scientist's overall H-index and their D-index remain within 30%, underscoring a strong disciplinary focus in their research output.
Verification and Methodological Rigor
Recognizing that raw bibliometric data alone cannot serve as an absolute evaluation tool, the Research.com team has implemented robust verification practices. All scientist profiles were manually cross-checked and validated against publications from a broad spectrum of trustworthy academic sources.
While not directly factored into the ranking position, the number of papers published in prominent journals and conference proceedings is considered a valuable secondary indicator of a researcher’s contribution to the field.
The final ranking position is established using each researcher's D-index calculated from data aggregated by OpenAlex and CrossRef, two of the most prominent and reliable bibliometric databases currently accessible to the global research community. For a detailed overview of the methodology, readers are encouraged to visit our methodology page.
Research.com’s Mission Behind the Ranking
Our core mission is to inspire and support researchers, organizations, and policymakers worldwide by providing transparent, data-driven insights into the leading experts shaping the future of science. We aim to facilitate the scientific community’s ability to identify top researchers within specific domains, countries, and institutions, thereby promoting collaboration, innovation, and informed decision-making.
Through meticulous data collection, rigorous validation, and thoughtful analysis, Research.com strives to maintain the integrity and credibility of this ranking as a trusted resource for academics and stakeholders across Thailand and the international scientific landscape.
