John C. Clamp

1.5k total citations
61 papers, 1.1k citations indexed

About

John C. Clamp is a scholar working on Ecology, Molecular Biology and Oceanography. According to data from OpenAlex, John C. Clamp has authored 61 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Ecology, 51 papers in Molecular Biology and 32 papers in Oceanography. Recurrent topics in John C. Clamp's work include Protist diversity and phylogeny (51 papers), Microbial Community Ecology and Physiology (47 papers) and Marine Biology and Ecology Research (18 papers). John C. Clamp is often cited by papers focused on Protist diversity and phylogeny (51 papers), Microbial Community Ecology and Physiology (47 papers) and Marine Biology and Ecology Research (18 papers). John C. Clamp collaborates with scholars based in United States, China and Saudi Arabia. John C. Clamp's co-authors include Weibo Song, Ping Sun, Dapeng Xu, Zhenzhen Yi, Khaled A. S. Al‐Rasheid, Daniel Williams, Mann Kyoon Shin, PHYLLIS CLARKE BRADBURY, Zigui Chen and Shan Gao and has published in prestigious journals such as PLoS ONE, Scientific Reports and Limnology and Oceanography.

In The Last Decade

John C. Clamp

61 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John C. Clamp United States 22 1.0k 953 386 252 64 61 1.1k
Michaela C. Strüder‐Kypke Canada 26 1.4k 1.3× 1.3k 1.4× 392 1.0× 343 1.4× 72 1.1× 46 1.6k
Peter Vďačný Slovakia 22 1.3k 1.2× 1.2k 1.3× 274 0.7× 335 1.3× 49 0.8× 101 1.5k
Zhenzhen Yi China 26 2.1k 2.1× 2.2k 2.3× 436 1.1× 854 3.4× 69 1.1× 102 2.3k
Jon Bråte Norway 14 728 0.7× 743 0.8× 217 0.6× 86 0.3× 103 1.6× 23 1.0k
Anna Vader Norway 14 399 0.4× 280 0.3× 250 0.6× 114 0.5× 81 1.3× 31 775
Stephen C. Landers United States 15 346 0.3× 180 0.2× 356 0.9× 38 0.2× 94 1.5× 64 650
Luciana F. Santoferrara United States 19 927 0.9× 802 0.8× 338 0.9× 102 0.4× 39 0.6× 37 1.0k
Estelle Bigeard France 14 372 0.4× 321 0.3× 152 0.4× 86 0.3× 32 0.5× 23 515
Cornelia Jaspers Denmark 18 244 0.2× 148 0.2× 330 0.9× 83 0.3× 360 5.6× 52 821
Silke Laakmann Germany 19 679 0.7× 469 0.5× 359 0.9× 26 0.1× 293 4.6× 39 1.0k

Countries citing papers authored by John C. Clamp

Since Specialization
Citations

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

Fields of papers citing papers by John C. Clamp

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John C. Clamp. 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 John C. Clamp. The network helps show where John C. Clamp may publish in the future.

Co-authorship network of co-authors of John C. Clamp

This figure shows the co-authorship network connecting the top 25 collaborators of John C. Clamp. A scholar is included among the top collaborators of John C. Clamp 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 John C. Clamp. John C. Clamp 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.
Poulin, Robert, Robert D. Holt, Michael Barfield, et al.. (2019). The interplay of nested biotic interactions and the abiotic environment regulates populations of a hypersymbiont. Journal of Animal Ecology. 88(12). 1998–2010. 6 indexed citations
2.
Zhuang, Yuan, John C. Clamp, Zhenzhen Yi, & Daode Ji. (2017). Phylogeny of the families Zoothamniidae and Epistylididae (Protozoa: Ciliophora: Peritrichia) based on analyses of three rRNA-coding regions. Molecular Phylogenetics and Evolution. 118. 99–107. 25 indexed citations
3.
Clamp, John C. & Denis H. Lynn. (2017). Investigating the biodiversity of ciliates in the ‘Age of Integration’. European Journal of Protistology. 61(Pt B). 314–322. 30 indexed citations
4.
Zhuang, Yuan, John C. Clamp, Zhenzhen Yi, & Daode Ji. (2016). A new Peritrich Ciliate from a Hypersaline Habitat in Northern China. Zootaxa. 4169(1). 179–186. 7 indexed citations
5.
6.
Liu, Weiwei, Zhenzhen Yi, Dapeng Xu, et al.. (2015). Two New Genera of Planktonic Ciliates and Insights into the Evolution of the Family Strombidiidae (Protista, Ciliophora, Oligotrichia). PLoS ONE. 10(6). e0131726–e0131726. 24 indexed citations
7.
Chen, Xumiao, Chen Shao, Xiaofeng Lin, John C. Clamp, & Weibo Song. (2013). Morphology and molecular phylogeny of two new brackish-water species of Amphisiella (Ciliophora, Hypotrichia), with notes on morphogenesis. European Journal of Protistology. 49(3). 453–466. 17 indexed citations
8.
Wang, Hongliang, Xinlu Shi, John C. Clamp, et al.. (2011). A new interpretation of stomatogenesis in a peritrich ciliate: UsingCampanella umbellariaas a model system. Journal of Morphology. 272(8). 987–1006. 8 indexed citations
9.
Zhang, Qianqian, Xinpeng Fan, John C. Clamp, Khaled A. S. Al‐Rasheid, & Weibo Song. (2010). Description of Paratetrahymena parawassi n. sp. using Morphological and Molecular Evidence and a Phylogenetic Analysis of Paratetrahymena and Other Taxonomically Ambiguous Genera in the Order Loxocephalida (Ciliophora, Oligohymenophorea). Journal of Eukaryotic Microbiology. 57(6). 483–493. 27 indexed citations
10.
Sun, Ping, John C. Clamp, & Dapeng Xu. (2010). Analysis of the secondary structure of ITS transcripts in peritrich ciliates (Ciliophora, Oligohymenophorea): Implications for structural evolution and phylogenetic reconstruction. Molecular Phylogenetics and Evolution. 56(1). 242–251. 41 indexed citations
11.
Miao, Miao, Weibo Song, John C. Clamp, et al.. (2009). Further Consideration of the Phylogeny of Some “Traditional” Heterotrichs (Protista, Ciliophora) of Uncertain Affinities, Based on New Sequences of the Small Subunit rRNA Gene. Journal of Eukaryotic Microbiology. 56(3). 244–250. 33 indexed citations
12.
13.
Williams, Daniel & John C. Clamp. (2007). A Molecular Phylogenetic Investigation of Opisthonecta and Related Genera (Ciliophora, Peritrichia, Sessilida). Journal of Eukaryotic Microbiology. 54(3). 317–323. 24 indexed citations
14.
Clamp, John C. & Daniel Williams. (2006). A Molecular Phylogenetic Investigation of Zoothamnium (Ciliophora, Peritrichia, Sessilida)1. Journal of Eukaryotic Microbiology. 53(6). 494–498. 38 indexed citations
15.
16.
Sun, Ping, Weibo Song, John C. Clamp, & Khaled A. S. Al‐Rasheid. (2006). Taxonomic Characterization of Vorticella fuscaPrecht, 1935 and Vorticella parapulchella n. sp., Two Marine Peritrichs (Ciliophora, Oligohymenophorea) from China. Journal of Eukaryotic Microbiology. 53(5). 348–357. 13 indexed citations
17.
Clamp, John C.. (2005). Redescription of Lagenophrys maxillaris (Jankowski, 1993) (Ciliophora, Peritrichia, Lagenophryidae), an Ectosymbiont of Marine Amphipods. Journal of Eukaryotic Microbiology. 52(1). 38–43. 10 indexed citations
18.
19.
BRADBURY, PHYLLIS CLARKE & John C. Clamp. (1991). The Fine Structure of the Cinctum of Ellobiophrya conviva (Ciliophora: Peritricha). The Journal of Protozoology. 38(4). 312–320. 4 indexed citations
20.
Clamp, John C.. (1973). Observations on the Host‐Symbiont Relationships of Lagenophrys lunatus Imamura*. The Journal of Protozoology. 20(5). 558–561. 39 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Michaela C. Strüder‐Kypke Breakdown of academic impact, for papers by Peter Vďačný Breakdown of academic impact, for papers by Zhenzhen Yi Breakdown of academic impact, for papers by Jon Bråte Breakdown of academic impact, for papers by Anna Vader Breakdown of academic impact, for papers by Stephen C. Landers Breakdown of academic impact, for papers by Luciana F. Santoferrara Breakdown of academic impact, for papers by Estelle Bigeard Breakdown of academic impact, for papers by Cornelia Jaspers Breakdown of academic impact, for papers by Silke Laakmann
Rankless by CCL
2026