A researcher’s position in the ranking is determined exclusively by their D-index (Discipline H-index), which reflects the impact of their publications within the examined discipline—in this case, Ecology and Evolution. By focusing solely on discipline-specific publications and citation patterns, the D-index provides a nuanced measure that highlights expertise and influence within a targeted scientific domain.
Scope of Research and Inclusion Criteria
In constructing this ranking, 279,971 scientist profiles were initially reviewed across a broad spectrum of disciplines, with a focused examination of 13 scientists in Ecology and Evolution specific to Singapore. To qualify for inclusion, a researcher’s D-index needed to meet or exceed a threshold of 30. Additionally, the majority of their tier publications had to be demonstrably situated within Ecology and Evolution.
Scientist awards and notable achievements in Ecology and Evolution were also taken into account as supplementary indicators of influence and standing within the field. The D-index thresholds for top researchers are dynamically set as increments of 10, calibrated according to the estimated total number of scholars within each discipline. This approach ensures that the top 1% of the leading scholars are rigorously incorporated into the ranking.
Moreover, to maintain methodological consistency and domain specificity, only those researchers whose general H-index and D-index values exhibit a proximity of 30% or less are considered, preventing distortion arising from contributions outside the targeted discipline.
Verification Practices and Methodological Transparency
The research team acknowledges the inherent limitations of raw bibliometric data as an absolute evaluation tool for scholarly output. Consequently, every scientist profile featured in the ranking was subjected to manual verification and cross-correlation against publications listed in a wide array of trusted and authoritative sources.
While not directly factored into the ranking position, the number of papers published in prominent peer-reviewed journals and conference proceedings serves as a valuable secondary signal of a researcher’s scientific contribution within Ecology and Evolution.
Positioning within the ranking is fundamentally based on each researcher’s D-index, derived from the rigorously curated datasets provided by OpenAlex and CrossRef—arguably the most prominent and widely recognized bibliometric databases currently available to the scientific community. For a detailed explanation of the methodology employed, please consult our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to inspire and inform researchers, academic institutions, companies, and policymakers worldwide by illuminating where leading scientific experts are directing their efforts. This ranking serves as a vital resource to help the broader scientific community identify top contributors in specialized areas of study, within specific countries such as Singapore, or across various research institutions.
Through meticulous data analysis and careful verification, we strive to build a credible, transparent, and respected resource that advances collaboration, recognition, and strategic investment in science globally.
