Roy H. J. Erkens

3.3k total citations
57 papers, 2.0k citations indexed

About

Roy H. J. Erkens is a scholar working on Ecology, Evolution, Behavior and Systematics, Molecular Biology and Nature and Landscape Conservation. According to data from OpenAlex, Roy H. J. Erkens has authored 57 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Ecology, Evolution, Behavior and Systematics, 26 papers in Molecular Biology and 10 papers in Nature and Landscape Conservation. Recurrent topics in Roy H. J. Erkens's work include Plant and animal studies (30 papers), Plant Diversity and Evolution (30 papers) and Plant and Fungal Species Descriptions (23 papers). Roy H. J. Erkens is often cited by papers focused on Plant and animal studies (30 papers), Plant Diversity and Evolution (30 papers) and Plant and Fungal Species Descriptions (23 papers). Roy H. J. Erkens collaborates with scholars based in Netherlands, United Kingdom and France. Roy H. J. Erkens's co-authors include Lars W. Chatrou, Michael D. Pirie, James Richardson, Thomas L. P. Couvreur, Jan W. Maas, Richard M. Saunders, Johan B. Mols, G.A. de Groot, Harald Schneider and Paul J. M. Maas and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Philosophical Transactions of the Royal Society B Biological Sciences.

In The Last Decade

Roy H. J. Erkens

56 papers receiving 2.0k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Roy H. J. Erkens Netherlands	22	1.4k	1.1k	476	274	208	57	2.0k
Michael D. Pirie South Africa	27	1.7k 1.2×	1.1k 1.1×	808 1.7×	407 1.5×	259 1.2×	64	2.3k
Lars W. Chatrou Netherlands	29	2.8k 2.0×	2.3k 2.1×	969 2.0×	350 1.3×	324 1.6×	78	3.7k
Ricarda Riina Spain	24	2.2k 1.5×	1.3k 1.2×	1.1k 2.3×	334 1.2×	292 1.4×	95	2.8k
Eve Lucas United Kingdom	26	1.7k 1.2×	844 0.8×	526 1.1×	343 1.3×	81 0.4×	119	2.1k
Henk van der Werff United States	24	1.7k 1.2×	1.2k 1.1×	477 1.0×	186 0.7×	75 0.4×	100	2.0k
Ze‐Long Nie China	29	1.9k 1.4×	1.6k 1.5×	1.1k 2.3×	295 1.1×	542 2.6×	98	2.9k
Sven Buerki United States	27	1.7k 1.2×	1.0k 1.0×	802 1.7×	381 1.4×	416 2.0×	123	2.5k
Niklas Wikström Sweden	26	2.1k 1.5×	1.3k 1.2×	1.1k 2.3×	564 2.1×	358 1.7×	43	3.0k
André M. Amorim Brazil	20	1.6k 1.2×	838 0.8×	418 0.9×	371 1.4×	133 0.6×	149	2.2k

Countries citing papers authored by Roy H. J. Erkens

Since Specialization

Citations

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

Fields of papers citing papers by Roy H. J. Erkens

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roy H. J. Erkens. 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 Roy H. J. Erkens. The network helps show where Roy H. J. Erkens may publish in the future.

Co-authorship network of co-authors of Roy H. J. Erkens

This figure shows the co-authorship network connecting the top 25 collaborators of Roy H. J. Erkens. A scholar is included among the top collaborators of Roy H. J. Erkens 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 Roy H. J. Erkens. Roy H. J. Erkens 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

Helmstetter, Andrew J., Elton John de Lírio, Sylvia Mota de Oliveira, et al.. (2025). Toward a phylogenomic classification of magnoliids. American Journal of Botany. 112(1). e16451–e16451. 7 indexed citations

Vijverberg, Kitty, et al.. (2024). Some like it hot: adaptation to the urban heat island in common dandelion. Evolution Letters. 8(6). 881–892. 4 indexed citations

Maas, Paul J. M., et al.. (2023). Annonaceae - Flora of Guyana, Suriname and French Guiana. 1 indexed citations

Erkens, Roy H. J., et al.. (2022). Spatial distribution of Annonaceae across biomes and anthromes: Knowledge gaps in spatial and ecological data. Plants People Planet. 5(4). 520–535. 13 indexed citations

Erkens, Roy H. J., et al.. (2022). A method for making Red List assessments with herbarium data and distribution models for species‐rich plant taxa: Lessons from the Neotropical genus Guatteria (Annonaceae). Plants People Planet. 5(4). 536–546. 9 indexed citations

Gerven, Pascal W. M. Van, et al.. (2020). The effects of standing tutorial meetings on physical activity behavior in undergraduates: A randomized controlled trial. Physiology & Behavior. 230. 113294–113294. 4 indexed citations

Erkens, Roy H. J., et al.. (2017). Revisions of Ruizodendron and Pseudephedranthus (Annonaceae) including a new species and an overview of most up-to-date revisions of Neotropical Annonaceae genera. PhytoKeys. 86(86). 75–96. 13 indexed citations

Wieringa, Jan J., et al.. (2017). Correlated evolutionary rates across genomic compartments in Annonaceae. Molecular Phylogenetics and Evolution. 114. 63–72. 10 indexed citations

Wubs, E. R. Jasper, Rob G. A. Fraaije, G.A. de Groot, et al.. (2016). Going against the flow: a case for upstream dispersal and detection of uncommon dispersal events. Freshwater Biology. 61(5). 580–595. 30 indexed citations

10.

Staats, Martijn, Roy H. J. Erkens, Bart van de Vossenberg, et al.. (2013). Genomic Treasure Troves: Complete Genome Sequencing of Herbarium and Insect Museum Specimens. PLoS ONE. 8(7). e69189–e69189. 167 indexed citations

11.

Erkens, Roy H. J.. (2013). On why we should teach biogeography and the need for a biogeography compendium. Frontiers of Biogeography. 5(2). 1 indexed citations

12.

Erkens, Roy H. J., E. A. Mennega, & L.Y.Th. Westra. (2012). A concise bibliographic overview of Annonaceae. Botanical Journal of the Linnean Society. 169(1). 41–73. 12 indexed citations

13.

Erkens, Roy H. J., Lars W. Chatrou, & Thomas L. P. Couvreur. (2012). Radiations and key innovations in an early branching angiosperm lineage (Annonaceae; Magnoliales). Botanical Journal of the Linnean Society. 169(1). 117–134. 32 indexed citations

14.

Maas, Paul J. M., L.Y.Th. Westra, Heimo Rainer, Adriana Quintella Lobão, & Roy H. J. Erkens. (2011). An updated index to genera, species, and infraspecific taxa of Neotropical Annonaceae. Nordic Journal of Botany. 29(3). 257–356. 26 indexed citations

15.

Groot, G.A. de, Helena Korpelainen, E. R. Jasper Wubs, & Roy H. J. Erkens. (2011). Isolation of polymorphic microsatellite markers and tests of cross‐amplification in four widespread European calcicole ferns. American Journal of Botany. 98(11). e319–22. 4 indexed citations

16.

Groot, G.A. de, Heinjo J. During, Jan W. Maas, et al.. (2011). Use of rbcL and trnL-F as a Two-Locus DNA Barcode for Identification of NW-European Ferns: An Ecological Perspective. PLoS ONE. 6(1). e16371–e16371. 107 indexed citations

17.

Erkens, Roy H. J.. (2010). What every chemist should know about plant names. Natural Product Reports. 28(1). 11–14. 10 indexed citations

18.

Erkens, Roy H. J. & Pieter Baas. (2008). Utrecht: rise and fall of a great herbarium. Taxon. 57(3). 1024–1026. 4 indexed citations

19.

Erkens, Roy H. J., et al.. (2008). WODAN: de invloed van verspreidings- en vestigingsmogelijkheden op het ontstaan van biodiversiteit. Gorteria. 33(2). 59–60. 3 indexed citations

20.

Couvreur, Thomas L. P., James Richardson, Marc S.M. Sosef, Roy H. J. Erkens, & Lars W. Chatrou. (2008). Evolution of syncarpy and other morphological characters in African Annonaceae: A posterior mapping approach. Molecular Phylogenetics and Evolution. 47(1). 302–318. 62 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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