Data Sources and Bibliometric Collection
The 5th edition of the Research.com Best Ecology and Evolution Scientists in United States Ranking is primarily based on comprehensive bibliometric data sourced from OpenAlex and CrossRef, supplemented by multiple additional reputable data repositories. These sources provide extensive coverage of scholarly publications and citation records, forming a robust foundation for the ranking. The bibliometric data used to compute the citation-based metrics were collected on January 12, 2026, ensuring up-to-date and precise evaluation.
Each scientist’s position in the ranking is determined by their D-index (Discipline H-index), a refined metric that includes only publications and citations pertinent to the specific discipline under examination. This approach allows for a focused and accurate assessment of a researcher’s impact within the field of Ecology and Evolution.
Scope and Criteria of the Ranking
The ranking analysis incorporated a total of 279,971 scientist profiles identified from a variety of bibliometric data sources, spanning all scientific disciplines. Specifically, 2,768 profiles within Ecology and Evolution were closely examined for this edition. To qualify for inclusion in the ranking, scientists were required to meet a minimum D-index threshold of 30, alongside having the majority of their tier publications concentrated in the Ecology and Evolution domain.
Further qualitative factors, including significant awards and recognized achievements within Ecology and Evolution, were also taken into account. The D-index threshold is calibrated in increments of 10 relative to the estimated size of each discipline's scholarly community, ensuring that the top 1% of leading scholars are incorporated across all fields. Additionally, candidates were required to demonstrate a proximity of 30% or less between their general H-index and D-index, ensuring the discipline-specific impact aligns closely with their overall scholarly influence.
Additional Verification Practices
Understanding the limitations of raw bibliometric data as an absolute evaluative tool, the Research.com team implemented a rigorous manual verification process. All scientist profiles were cross-checked against publications from a wide range of trustworthy sources to validate identity and scholarly output accuracy. While the ranking strictly utilizes the D-index to establish position, the volume of papers published in prominent journals and conference proceedings was also considered a valuable secondary signal of a researcher’s genuine contribution to Ecology and Evolution.
The positions published in the ranking reflect information synthesized from OpenAlex and CrossRef, two of the most prominent and widely trusted bibliometric databases available to the research community. This ensures transparency and reliability in the construction of the ranking.
For a comprehensive understanding of the evaluation framework and methodologies employed, readers are encouraged to visit our methodology page.
Research.com’s Commitment and Vision
At Research.com, our mission is to motivate researchers, corporations, and policymakers worldwide to closely examine the directions and contributions of leading experts. We aim to provide the scientific community with an authoritative resource to identify and connect with top-tier scholars in specific fields of study, within various countries, and across research institutions.
This ranking represents a meticulous and transparent effort to recognize outstanding scientific achievement in Ecology and Evolution, facilitating knowledge exchange and collaboration that advance both academia and applied science worldwide.
