Sujeevan Ratnasingham

22.6k total citations · 5 hit papers
38 papers, 13.5k citations indexed

About

Sujeevan Ratnasingham is a scholar working on Ecology, Molecular Biology and Genetics. According to data from OpenAlex, Sujeevan Ratnasingham has authored 38 papers receiving a total of 13.5k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Ecology, 19 papers in Molecular Biology and 17 papers in Genetics. Recurrent topics in Sujeevan Ratnasingham's work include Environmental DNA in Biodiversity Studies (21 papers), Genomics and Phylogenetic Studies (14 papers) and Species Distribution and Climate Change (11 papers). Sujeevan Ratnasingham is often cited by papers focused on Environmental DNA in Biodiversity Studies (21 papers), Genomics and Phylogenetic Studies (14 papers) and Species Distribution and Climate Change (11 papers). Sujeevan Ratnasingham collaborates with scholars based in Canada, United States and United Kingdom. Sujeevan Ratnasingham's co-authors include Paul D. N. Hebert, Jeremy R deWaard, Mehrdad Hajibabaei, Natalia V. Ivanova, James A. Boutillier, Filipe O. Costa, Stephanie Kirk, Paula M. Mackie, Angela C Telfer and Evgeny V. Zakharov and has published in prestigious journals such as PLoS ONE, Scientific Reports and Philosophical Transactions of the Royal Society B Biological Sciences.

In The Last Decade

Sujeevan Ratnasingham

37 papers receiving 13.0k citations

Hit Papers

5 papers align trajectories

What are hit papers?

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.

bold: The Barcode of Life Data System (http://www.barcodinglife.org)

2007 4.7k citations Sujeevan Ratnasingham, Paul D. N. Hebert profile →
Barcoding animal life: cytochrome c oxidase subunit 1 divergences among closely related species

2003 3.6k citations Paul D. N. Hebert, Sujeevan Ratnasingham et al. profile →
A DNA-Based Registry for All Animal Species: The Barcode Index Number (BIN) System

2013 1.6k citations Sujeevan Ratnasingham, Paul D. N. Hebert PLoS ONE profile →
BOLD : The Barcode of Life Data System (www.barcodinglife.org)

2007 1.4k citations Sujeevan Ratnasingham et al. profile →
Counting animal species with DNA barcodes: Canadian insects

2016 278 citations Paul D. N. Hebert, Sujeevan Ratnasingham et al. Philosophical Transactions of the Royal Society B Biological Sciences profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Sujeevan Ratnasingham Canada	21	5.9k	5.5k	4.4k	4.3k	2.7k	38	13.5k
Jeremy R deWaard Canada	26	5.4k 0.9×	5.7k 1.0×	4.8k 1.1×	4.7k 1.1×	2.9k 1.1×	52	14.4k
Timothy G. Barraclough United Kingdom	54	4.7k 0.8×	4.5k 0.8×	5.0k 1.1×	6.1k 1.4×	1.4k 0.5×	127	14.6k
Alfried P. Vogler United Kingdom	69	7.3k 1.2×	5.3k 1.0×	7.1k 1.6×	9.1k 2.1×	3.7k 1.3×	249	18.9k
Shelley L. Ball Canada	13	4.2k 0.7×	4.7k 0.9×	3.2k 0.7×	3.3k 0.7×	2.4k 0.9×	16	11.0k
Pablo Librado Spain	15	4.7k 0.8×	6.5k 1.2×	7.7k 1.7×	3.8k 0.9×	1.9k 0.7×	27	18.5k
Alina Cywinska Canada	8	3.8k 0.6×	4.4k 0.8×	3.0k 0.7×	2.9k 0.7×	2.1k 0.8×	8	10.3k
Paul Sunnucks Australia	54	4.4k 0.7×	2.2k 0.4×	5.3k 1.2×	3.7k 0.9×	2.5k 0.9×	194	11.3k
Mark Clement United States	16	3.6k 0.6×	2.6k 0.5×	4.9k 1.1×	2.7k 0.6×	1.0k 0.4×	89	10.2k
Steven Stones-Havas United States	5	3.8k 0.6×	6.3k 1.2×	3.2k 0.7×	3.8k 0.9×	1.4k 0.5×	6	15.0k
Heidi E. L. Lischer Switzerland	14	4.3k 0.7×	3.9k 0.7×	9.1k 2.1×	2.5k 0.6×	1.0k 0.4×	24	14.7k

Countries citing papers authored by Sujeevan Ratnasingham

Since Specialization

Citations

This map shows the geographic impact of Sujeevan Ratnasingham'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 Sujeevan Ratnasingham with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sujeevan Ratnasingham more than expected).

Fields of papers citing papers by Sujeevan Ratnasingham

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sujeevan Ratnasingham. 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 Sujeevan Ratnasingham. The network helps show where Sujeevan Ratnasingham may publish in the future.

Co-authorship network of co-authors of Sujeevan Ratnasingham

This figure shows the co-authorship network connecting the top 25 collaborators of Sujeevan Ratnasingham. A scholar is included among the top collaborators of Sujeevan Ratnasingham 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 Sujeevan Ratnasingham. Sujeevan Ratnasingham is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Steinke, Dirk, Sean W. J. Prosser, Jayme E Sones, et al.. (2025). Metabarcoding arthropods in agroecosystems in Southern Ontario, Canada. Biodiversity Data Journal. 13. e158459–e158459.

Steinke, Dirk, Sujeevan Ratnasingham, Jireh Agda, et al.. (2024). Towards a Taxonomy Machine: A Training Set of 5.6 Million Arthropod Images. Data. 9(11). 122–122. 1 indexed citations

Ratnasingham, Sujeevan, Catherine Wei, D. Susan Willis Chan, et al.. (2024). BOLD v4: A Centralized Bioinformatics Platform for DNA-Based Biodiversity Data. Methods in molecular biology. 2744. 403–441. 33 indexed citations

Burgess, Patrick, Gustavo S. Betini, Jack DeWaard, et al.. (2024). Spatial and seasonal determinants of arthropod community composition across an agro-ecosystem landscape. FACETS. 9. 1–15. 2 indexed citations

Steinke, Dirk, Jayme E Sones, Natalya Ivanova, et al.. (2022). Message in a Bottle—Metabarcoding enables biodiversity comparisons across ecoregions. GigaScience. 11. 27 indexed citations

Sharkey, Michael J., Erika M. Tucker, M. Alex Smith, et al.. (2022). More discussion of minimalist species descriptions and clarifying some misconceptions contained in Meier et al. 2021. ZooKeys. 1110. 135–149. 3 indexed citations

Nugent, Cameron M., Tyler A. Elliott, Sujeevan Ratnasingham, Paul D. N. Hebert, & Sarah J. Adamowicz. (2021). Debar: A sequence‐by‐sequence denoiser for COI‐5P DNA barcode data. Molecular Ecology Resources. 21(8). 2832–2846. 2 indexed citations

Pilgrim, Jack, Helen Davison, Stefanos Siozios, et al.. (2021). Torix Rickettsia are widespread in arthropods and reflect a neglected symbiosis. GigaScience. 10(3). 27 indexed citations

Sharkey, Michael J., M. Alex Smith, Suresh Naik, et al.. (2021). Addendum to a minimalist revision of Costa Rican Braconidae: 28 new species and 23 host records. ZooKeys. 1075. 77–136. 5 indexed citations

10.

Nugent, Cameron M., Tyler A. Elliott, Sujeevan Ratnasingham, & Sarah J. Adamowicz. (2020). coil: an R package for cytochrome c oxidase I (COI) DNA barcode data cleaning, translation, and error evaluation. Genome. 63(6). 291–305. 20 indexed citations

11.

Cruaud, Astrid, Gérard Delvare, Sabine Nidelet, et al.. (2020). Ultra‐Conserved Elements and morphology reciprocally illuminate conflicting phylogenetic hypotheses in Chalcididae (Hymenoptera, Chalcidoidea). Cladistics. 37(1). 1–35. 26 indexed citations

12.

Pentinsaari, Mikko, Sujeevan Ratnasingham, Scott E. Miller, & Paul D. N. Hebert. (2020). BOLD and GenBank revisited – Do identification errors arise in the lab or in the sequence libraries?. PLoS ONE. 15(4). e0231814–e0231814. 83 indexed citations

13.

Braukmann, Thomas, Natalya Ivanova, Sean W. J. Prosser, et al.. (2019). Metabarcoding a diverse arthropod mock community. Molecular Ecology Resources. 19(3). 711–727. 104 indexed citations

14.

deWaard, Jeremy R, Valerie Levesque‐Beaudin, Stephanie deWaard, et al.. (2018). Expedited assessment of terrestrial arthropod diversity by coupling Malaise traps with DNA barcoding. Genome. 62(3). 85–95. 59 indexed citations

15.

Hebert, Paul D. N., Thomas Braukmann, Sean W. J. Prosser, et al.. (2018). A Sequel to Sanger: amplicon sequencing that scales. BMC Genomics. 19(1). 219–219. 168 indexed citations

16.

Hebert, Paul D. N., Sujeevan Ratnasingham, Evgeny V. Zakharov, et al.. (2016). Counting animal species with DNA barcodes: Canadian insects. Philosophical Transactions of the Royal Society B Biological Sciences. 371(1702). 20150333–20150333. 278 indexed citations breakdown →

17.

Ashfaq, Muhammad, et al.. (2015). High diversity and rapid diversification in the head louse, Pediculus humanus (Pediculidae: Phthiraptera). Scientific Reports. 5(1). 14188–14188. 42 indexed citations

18.

Hanner, Robert, et al.. (2013). Barcoding Life's Matrix: Translating Biodiversity Genomics into High School Settings to Enhance Life Science Education. PLoS Biology. 11(1). e1001471–e1001471. 18 indexed citations

19.

Hausmann, Axel, H. Charles J. Godfray, Peter Huemer, et al.. (2013). Correction: Genetic Patterns in European Geometrid Moths Revealed by the Barcode Index Number (BIN) System. PLoS ONE. 8(12). 20 indexed citations

20.

Rougerie, Rodolphe, M. Alex Smith, José Fernández-Triana, et al.. (2010). Molecular analysis of parasitoid linkages (MAPL): gut contents of adult parasitoid wasps reveal larval host. Molecular Ecology. 20(1). 179–186. 69 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.

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