Data Sources and Citation Metrics
The 5th edition of the Research.com Best Ecology and Evolution Scientists in Italy Ranking is primarily based on comprehensive bibliometric data harvested from leading databases such as OpenAlex and CrossRef, supplemented by multiple other reputable data sources. The citation metrics utilized to devise the ranking were compiled with data collected on January 12, 2026. A researcher’s position in the ranking is determined by their D-index (Discipline H-index), a refined bibliometric indicator that accounts only for publications and citations within the specific discipline of Ecology and Evolution, thus providing a focused measure of scholarly impact within the field.
Scope of Research and Qualification Criteria
This ranking examines an extensive pool of 279,971 scientist profiles aggregated across all scientific disciplines, from which 180 scientists specialized in Ecology and Evolution were identified. To qualify for inclusion, a scientist’s D-index had to meet or exceed a threshold of 30, ensuring the representation of researchers with significant disciplinary impact. Additionally, a majority of their tier publications needed to be anchored in Ecology and Evolution. Recognition through awards and notable achievements in the discipline was also considered as an important factor.
The D-index threshold is dynamically set in increments of 10 relative to the estimated total number of scholars within each discipline. This protocol ensures that the top 1% of leading scholars are consistently incorporated. Furthermore, the methodology enforces a proximity criterion whereby the disparity between a researcher’s overall H-index and D-index should be 30% or less, thereby maintaining the integrity and relevance of specialized impact measures.
Verification and Methodological Rigor
Recognizing that raw bibliometric data alone cannot fully capture the quality and nuance of scholarly contributions, the Research.com team implemented a rigorous manual verification process. Each scientist profile was cross-checked against publications cataloged in a wide spectrum of credible and trustworthy sources to validate accuracy and relevance. While factors such as the number of papers published in prominent journals and conference proceedings do not directly influence the ranking position, they serve as valuable secondary indicators of a scientist’s contribution to the field.
The ranking positions derive from each researcher’s D-index, consolidated through data from OpenAlex and CrossRef — two of the most authoritative and widely respected bibliometric databases accessible to the global research community. For a detailed overview of the methodologies employed in creating this ranking, readers are encouraged to visit our methodology page.
Research.com’s Vision and Mission
At Research.com, our mission is to empower researchers, academic institutions, companies, and policy-makers worldwide by providing transparent, data-driven insights into where leading experts are directing their efforts. This ranking offers the scientific community a robust platform to identify top scholars in specialized areas such as Ecology and Evolution, across different countries, and within various research institutions. By illuminating the landscape of scientific leadership, we strive to foster collaboration, inspire innovation, and support evidence-based decision-making within the global research ecosystem.
