The bibliometric data used to devise the citation-based metrics for this ranking were systematically gathered on January 12, 2026. A scientist’s position within the ranking is determined by their D-index (Discipline H-index), a refined metric that considers only the publications and corresponding citation records specifically within the examined discipline of Ecology and Evolution. This approach enables an accurate representation of a researcher’s influence and productivity tailored to their specialized field.
Scope of Research and Inclusion Criteria
Our evaluation encompassed 279,971 scientist profiles identified from a variety of bibliometric data sources across all disciplines, including 13 scientists specializing in Ecology and Evolution within Ireland. To qualify for inclusion in this ranking, a researcher must have achieved a minimum D-index of 30, and the majority of their tier publications must be clearly within the Ecology and Evolution discipline. Additionally, consideration was given to each scientist’s recognized awards and achievements specifically relevant to Ecology and Evolution.
The threshold for the D-index required to consider top researchers is set as increments of 10, contingent on the estimated total number of scholars in each discipline. This methodology ensures that the ranking consistently incorporates the top 1% of leading scholars. Furthermore, a proximity criterion mandates that the difference between a scientist’s general H-index and their D-index does not exceed 30%, thereby guaranteeing disciplinary specificity without disregarding overall scholarly influence.
Additional Verification Practices
Recognizing that raw bibliometric data alone cannot capture the full scope of a researcher’s contributions, all scientist profiles were manually verified and cross-correlated against publications indexed in a broad spectrum of trustworthy academic sources. This meticulous verification process underscores our commitment to accuracy and reliability.
While the number of papers published in prominent journals and conference proceedings does not directly influence a researcher’s ranking position, it serves as a valuable secondary indicator of their impact and presence within a specific scientific community.
The final ranking positions were established exclusively using each researcher’s D-index derived from data provided by OpenAlex and CrossRef, the foremost and most widely acknowledged bibliometric databases available to the research community. For further details on the comprehensive methodology underlying this ranking, we invite readers to visit our methodology page.
Research.com’s Mission and Vision
At Research.com, our mission is to motivate researchers, companies, and policymakers worldwide to closely examine the trajectories of leading experts. We strive to provide the global scientific community with transparent and reliable insights into who the foremost specialists are within specific fields of study, countries, and academic institutions.
By curating and disseminating rankings that reflect scientific excellence with meticulous care and rigorous verification, we aim to foster informed collaboration, strategic investment, and evidence-based decision-making across the research ecosystem.
