Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
THE AMPHIBIAN TREE OF LIFE
20061.7k citationsRafael O. de Sá, John D. Lynch et al.profile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
hero ref
Countries citing papers authored by Rafael O. de Sá
Since
Specialization
Citations
This map shows the geographic impact of Rafael O. de Sá's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Rafael O. de Sá with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Rafael O. de Sá more than expected).
This network shows the impact of papers produced by Rafael O. de Sá. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Rafael O. de Sá. The network helps show where Rafael O. de Sá may publish in the future.
Co-authorship network of co-authors of Rafael O. de Sá
This figure shows the co-authorship network connecting the top 25 collaborators of Rafael O. de Sá.
A scholar is included among the top collaborators of Rafael O. de Sá based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Rafael O. de Sá. Rafael O. de Sá is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Gower, David J., Thomas M. Doherty‐Bone, Michele Menegon, et al.. (2012). High Prevalence of the Amphibian Chytrid Fungus ( Batrachochytrium dendrobatidis ) across Multiple Taxa and Localities in the Highlands of Ethiopia. Herpetological Journal. 22(4). 225–233.17 indexed citations
Veloso, Alberto, et al.. (2007). The tadpole of Eupsophus queulensis (Anura, Cycloramphidae). 25. 45–54.6 indexed citations
13.
Heyer, W. Ronald, Ulisses Caramaschi, & Rafael O. de Sá. (2006). Rana ocellata Linnaeus, 1758 (currently Leptodactylus ocellatus; Amphibia, Anura): proposed conservation of usage of the specific name by the designation of a neotype. Smithsonian Digital Repository (Smithsonian Institution). 63(3). 184–186.5 indexed citations
14.
Padial, José M., Rafael O. de Sá, & Ignacio De la Riva. (2006). The Distress Calls of Leptodactylus chaquensis Cei, 1950 and Leptodactylus elenae Heyer, 1978 (Anura: Leptodactylidae). 42(1). 57.5 indexed citations
15.
Sá, Rafael O. de, et al.. (2006). Karyotypes of eight species of Leptodactylus (Anura, Leptodactylidae) with a description of a new karyotype for the genus. SHILAP Revista de lepidopterología.3 indexed citations
16.
Langone, José A. & Rafael O. de Sá. (2005). Redescripción de la morfología larval externa de dos especies del grupo de Leptodactylus fuscus (Anura, Leptodactylidae). SHILAP Revista de lepidopterología.11 indexed citations
17.
Sá, Rafael O. de, W. Ronald Heyer, & Arley Camargo. (2005). Are Leptodactylus didymus and L. mystaceus Phylogenetically Sibling Species (Amphibia, Anura, Leptodactylidae)?. Russian Journal of Herpetology. 12. 90–92.7 indexed citations
18.
Heyer, W. Ronald, et al.. (2005). Sibling Species, Advertisement Calls, and Reproductive Isolation in Frogs of the Leptodactylus pentadactylus Species Cluster (Amphibia, Leptodactylidae). Russian Journal of Herpetology. 12. 35–39.13 indexed citations
19.
Sá, Rafael O. de, et al.. (1997). Description of Tadpoles of Three Species of Scinax (Anura: Hylidae). Herpetological Journal. 7(1). 13–17.18 indexed citations
20.
Mitchell, Joseph C. & Rafael O. de Sá. (1994). Terrapene carolina carolina. Herpetological review. 25(2). 64.1 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.