S. Robbert Gradstein

8.7k total citations
231 papers, 4.9k citations indexed

About

S. Robbert Gradstein is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Nature and Landscape Conservation. According to data from OpenAlex, S. Robbert Gradstein has authored 231 papers receiving a total of 4.9k indexed citations (citations by other indexed papers that have themselves been cited), including 211 papers in Ecology, Evolution, Behavior and Systematics, 166 papers in Plant Science and 15 papers in Nature and Landscape Conservation. Recurrent topics in S. Robbert Gradstein's work include Bryophyte Studies and Records (188 papers), Botany and Plant Ecology Studies (154 papers) and Lichen and fungal ecology (143 papers). S. Robbert Gradstein is often cited by papers focused on Bryophyte Studies and Records (188 papers), Botany and Plant Ecology Studies (154 papers) and Lichen and fungal ecology (143 papers). S. Robbert Gradstein collaborates with scholars based in France, Germany and Belgium. S. Robbert Gradstein's co-authors include Michael Kessler, Jochen Heinrichs, W. B. Schofield, Harald Schneider, Rosemary Wilson, Thorsten Krömer, P. Kessler, Ingo Holz, Florian Werner and Ramadhanil Pitopang and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Remote Sensing of Environment.

In The Last Decade

S. Robbert Gradstein

220 papers receiving 4.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
S. Robbert Gradstein France 40 4.0k 2.6k 792 733 373 231 4.9k
Steven P. Churchill United States 25 2.2k 0.6× 1.3k 0.5× 744 0.9× 519 0.7× 272 0.7× 112 3.2k
Juan Arroyo Spain 41 2.9k 0.7× 2.4k 0.9× 2.2k 2.7× 860 1.2× 460 1.2× 145 4.9k
Tomáš Herben Czechia 40 2.5k 0.6× 2.1k 0.8× 3.0k 3.8× 1.1k 1.5× 699 1.9× 158 4.6k
Jiří Danihelka Czechia 32 1.9k 0.5× 2.0k 0.8× 1.9k 2.5× 848 1.2× 525 1.4× 122 4.0k
Heinrich Weber Germany 10 1.7k 0.4× 2.4k 0.9× 1.4k 1.7× 891 1.2× 346 0.9× 45 3.5k
Steven N. Handel United States 34 2.2k 0.5× 1.5k 0.6× 2.1k 2.6× 889 1.2× 594 1.6× 92 3.7k
Salvador Rivas Martínez Spain 26 1.3k 0.3× 2.4k 0.9× 764 1.0× 590 0.8× 359 1.0× 123 3.6k
Stefan Porembski Germany 32 1.8k 0.4× 1.3k 0.5× 1.1k 1.4× 494 0.7× 630 1.7× 119 3.3k
James L. Luteyn United States 24 2.2k 0.5× 1.6k 0.6× 1.3k 1.7× 768 1.0× 539 1.4× 118 4.1k
H. P. Linder South Africa 34 2.9k 0.7× 1.3k 0.5× 1.3k 1.6× 364 0.5× 238 0.6× 109 4.1k

Countries citing papers authored by S. Robbert Gradstein

Since Specialization
Citations

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

Fields of papers citing papers by S. Robbert Gradstein

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by S. Robbert Gradstein. 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 S. Robbert Gradstein. The network helps show where S. Robbert Gradstein may publish in the future.

Co-authorship network of co-authors of S. Robbert Gradstein

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

All Works

20 of 20 papers shown
1.
Sim‐Sim, Manuela, César García, Cecı́lia Sérgio, et al.. (2019). Ptychomitrium subcrispatum Thér. & P.de la Varde, an east southern African species excluded from the Cape Verde bryoflora. Journal of Bryology. 41(3). 281–284. 2 indexed citations
2.
Gradstein, S. Robbert, Alfons Schäfer‐Verwimp, & Denise Pinheiro da Costa. (2018). The liverworts (Marchantiophyta) of the state of Goiás, Brazil. SHILAP Revista de lepidopterología.
3.
Sukkharak, Phiangphak & S. Robbert Gradstein. (2017). Phylogenetic study of Mastigolejeunea (Marchantiophyta: Lejeuneaceae) and an amended circumscription of the genus Thysananthus. Phytotaxa. 326(2). 16 indexed citations
4.
Désamoré, Aurélie, Alain Vanderpoorten, Benjamin Laenen, S. Robbert Gradstein, & Philippe J. R. Kok. (2014). Biogeography of the Lost World (Pantepui region, northeastern South America): Insights from bryophytes. Phytotaxa. 9(1). 254–265. 20 indexed citations
5.
Söderström, Lars, S. Robbert Gradstein, & Anders Hagborg. (2014). Checklist of the hornworts and liverworts of Java. Phytotaxa. 9(1). 53–149. 48 indexed citations
6.
Gradstein, S. Robbert, et al.. (2012). Liverworts (Marchantiophyta) of Mt. Halimun Salak National Park, West Java (Indonesia) and the rediscovery of Treubia in Java. 16(2). 203–209. 2 indexed citations
7.
Gradstein, S. Robbert & Jaime Uribe-M.. (2011). A synopsis of the frullaniaceae (marchantiophyta) from colombia. SHILAP Revista de lepidopterología. 12 indexed citations
8.
Gradstein, S. Robbert, et al.. (2011). Liverworts and hornworts of Mt. Slamet, Central Java (Indonesia). 16(1). 61–66. 6 indexed citations
9.
Gradstein, S. Robbert, et al.. (2010). Bryophytes of Mount Patuha, West Java, Indonesia. SHILAP Revista de lepidopterología. 10 indexed citations
10.
Gradstein, S. Robbert, et al.. (2006). Antibacterial activity in extracts of some bryophytes from China and Mongolia (Papers to Commemorate the 100th Issue of the Journal of the Hattori Botanical Laboratory) -- (Bryology). Journal of The Hattori Botanical Laboratory. 603–615. 2 indexed citations
11.
Heinrichs, Jochen, S. Robbert Gradstein, Rosemary Wilson, & Harald Schneider. (2005). Towards a natural classification of liverworts (Marchantiophyta) based on the chloroplast gene rbcL. Cryptogamie Bryologie. 26(2). 131–136138150. 124 indexed citations
12.
Gradstein, S. Robbert. (2005). A catalogue of the bryophytes of Sulawesi, Indonesia. National University of Singapore. 213–258. 19 indexed citations
13.
Zhu, Rui‐Liang & S. Robbert Gradstein. (2005). Monograph of Lopholejeunea (Lejeuneaceae, Hepaticae) in Asia. 20 indexed citations
14.
Gradstein, S. Robbert, M. Elena Reiner‐Drehwald, & Lou Jost. (2004). The systematic position and distribution of Myriocolea irrorata (Lejeuneaceae), an endangered liverwort of the Ecuadorian Andes. Journal of The Hattori Botanical Laboratory. 235–248. 13 indexed citations
15.
Kessler, P., et al.. (2002). Checklist of woody plants of Sulawesi, Indonesia. Data Archiving and Networked Services (DANS). 14(1). 1–160. 50 indexed citations
16.
Mues, R., et al.. (1991). New reflections on the taxonomy of Pleuroziaceae supported by flavonoid chemistry. Journal of The Hattori Botanical Laboratory. 70(70). 79–90. 2 indexed citations
17.
Grolle, Riclef & S. Robbert Gradstein. (1985). Haesselia, a new genus of Cephaloziaceae (Hepaticae) from Mt. Roraima, Guyana. Data Archiving and Networked Services (DANS). 2(1). 327–334. 1 indexed citations
18.
Gradstein, S. Robbert & Wolfgang Weber. (1982). Bryogeography of the Galapagos Islands. Data Archiving and Networked Services (DANS). 515(1). 127–152. 27 indexed citations
19.
Gradstein, S. Robbert. (1975). A Taxonomic Monograph of the Genus Acrolejeunea (Hepaticae) with an Arrangement of the Genera of Ptychanthoideae (Studies on Lejeuneaceae subfam. Ptychanthoideae III). Data Archiving and Networked Services (DANS). 425(1). 1–162. 10 indexed citations
20.
Gradstein, S. Robbert. (1971). New or otherwise interesting Bryophytes from Crete. Data Archiving and Networked Services (DANS). 355(1). 663–679. 12 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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