Alan Warren

10.9k citations
396 papers · 9.2k · 1 hit paper · h-index 41

Impact in

  • Ecology top 0.1%
    • Microbial Community Ecology and Physiology
    • Environmental DNA in Biodiversity Studies
  • Environmental Chemistry top 0.1%
    • Methane Hydrates and Related Phenomena

Papers in

  • Ecology 332
    • Microbial Community Ecology and Physiology 311
    • Environmental DNA in Biodiversity Studies 18
  • Environmental Chemistry 158
    • Methane Hydrates and Related Phenomena 151
Co-authors
WEIBO B. SONG (135 shared papers)Khaled A. S. Al‐Rasheid (63 shared papers)Xiaozhong Hu (48 shared papers)Jun Gong (23 shared papers)Zhenzhen Yi (34 shared papers)Henglong Xu (37 shared papers)Chen Shao (42 shared papers)Xiaofeng Lin (39 shared papers)
Journals
Acta Protozoologica (36 papers)INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY (18 papers)Frontiers in Microbiology (13 papers)Marine Pollution Bulletin (11 papers)Zoological Journal of the Linnean Society (9 papers)
Partner nations
United KingdomChinaSaudi Arabia

In The Last Decade

Alan Warren

393 papers receiving 8.9k citations

Alan Warren's Hit Papers

The Magnitude of Global Marine Species Diversity 2012 · 831 citations
8310+4+9Years since publication250500750
What are hit papers?

Paper score: A paper's citations measured against the top-1% bar of its own field and year: the square root of citations ÷ bar, so 1 means right at the bar and 2 means four times its citations. The bar blends the citation counts that enter the top 1% of the paper's subfields in its year (weighted 89.5%), of those subfields over all years (0.5%) and of its year across all fields (10%); a subfield and year with fewer than 400 papers takes its year's bar. Papers from 2026 are not scored yet: in an unfinished year, when a paper appeared matters more than how it is cited.

Hit paper: A paper cited at least 1.5× the top-1% bar of its field and year: a paper score of at least √1.5.

  1. 2012 Current Biology

Peers

Alan Warren
Comparison fields: 5 of 153
  • Ecology 6.9k
  • Environmental Chemistry 2.6k
  • Oceanography 2.3k
  • Molecular Biology 6.2k
  • Pollution 468
Replace Carlos Pedrós‐Alió with:
Carlos Pedrós‐Alió Spain
Wilhelm Foissner Austria
Esther Garcés Spain
Connie Lovejoy Canada
Adriana Zingone Italy
Thorsten Stoeck Germany
Ramiro Logares Spain
Michael E. Sieracki United States
Isabelle Domaizon France
Hae Jin Jeong South Korea
Alan Warren relative to Carlos Pedrós‐Alió Spain Carlos Pedrós‐Alió's profile →
Citations per field
00.5×1.5×
Carlos Pedrós‐Alió · 1×
Citations per year

Countries citing papers authored by Alan Warren

Since Specialization
Citations

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

Fields of papers citing papers by Alan Warren

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Alan Warren, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Alan Warren Line = papers co-authored together Alan Warren links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 396 papers — load more, or switch the sort, to bring in the rest.

#Work
1
The Magnitude of Global Marine Species Diversity
Current Biology ·Ward Appeltans, Shane T. Ahyong, Gary W. Anderson, Martin Angel, Tom Artois, Nicolas Bailly, Roger N. Bamber, Anthony D. Barber
Hit paper breakdown →		2012831
2
The All-Data-Based Evolutionary Hypothesis of Ciliated Protists with a Revised Classification of the Phylum Ciliophora (Eukaryota, Alveolata)
Scientific Reports ·Feng Gao, Alan Warren, Qianqian Zhang, Jun Gong, Miao Miao, Ping Sun, Dapeng Xu, Jie Huang
2016305
3
Investigation of Escherichia coli removal in various designs of subsurface flow wetlands used for wastewater treatment
Ecological Engineering ·Olivier Decamp, Alan Warren
2000129
4
Periphytic ciliate colonization: annual cycle and responses to environmental conditions
Aquatic Microbial Ecology ·Jun Gong, Wen Song, Alan Warren
2005125
5
An approach to analyzing spatial patterns of planktonic ciliate communities for monitoring water quality in Jiaozhou Bay, northern China
Marine Pollution Bulletin ·Yong Jiang, Henglong Xu, Xiaozhong Hu, Mingzhuang Zhu, Khaled A. S. Al‐Rasheid, Alan Warren
2010120
6
Beyond the “Code”: A Guide to the Description and Documentation of Biodiversity in Ciliated Protists (Alveolata, Ciliophora)
Journal of Eukaryotic Microbiology ·Alan Warren, David J. Patterson, Micah Dunthorn, John C. Clamp, Undine E.M. Achilles‐Day, Erna Aescht, Saleh A. Alfarraj, Saleh Al‐Quraishy
2017105
7
Effect of bone meal (calcium phosphate) amendments on metal release from contaminated soils — a leaching column study
Environmental Pollution ·Mark E. Hodson, Eugenia Valsami‐Jones, Janet D. Cotter-Howells, William E. Dubbin, Anthony J. Kemp, Iain Thornton, Alan Warren
2001102
8
“Candidatus Sonnebornia yantaiensis”, a member of candidate division OD1, as intracellular bacteria of the ciliated protist Paramecium bursaria (Ciliophora, Oligohymenophorea)
Systematic and Applied Microbiology ·Jun Gong, Yao Qing, Xiaohong Guo, Alan Warren
201399
9
Protistan communities in aquifers: a review
FEMS Microbiology Reviews ·Gianfranco Novarino, Alan Warren, Helen G. Butler, Gail Lambourne, Abigail Boxshall, J.E. Bateman, Nancy E. Kinner, Ronald W. Harvey
199795
10
Taxonomic Redescriptions of Two Ciliates, Protogastrostyla pulchra n. g., n. comb. and Hemigastrostyla enigmatica (Ciliophora: Spirotrichea, Stichotrichia), with Phylogenetic Analyses Based on 18S and 28S rRNA Gene Sequences
Journal of Eukaryotic Microbiology ·Jun Gong, Se-Joo Kim, S. S. Kim, Gi-Sik Min, DAVID McL. ROBERTS, Alan Warren, Joong-Ki Choi
200786
11
Bacterivory in ciliates isolated from constructed wetlands (reed beds) used for wastewater treatment
Water Research ·Olivier Decamp, Alan Warren
199884
12
A revision of the genus Vorticella (Ciliophora: Peritrichida)
Biodiversity Heritage Library (Smithsonian Institution) ·Alan Warren
198680
13
An approach to determining the sampling effort for analyzing biofilm-dwelling ciliate colonization using an artificial substratum in coastal waters
Biofouling ·Henglong Xu, Wei Zhang, Yong Jiang, Mingzhuang Zhu, Khaled A. S. Al‐Rasheid, Alan Warren, WEIBO B. SONG
201179
14
Dark Adaptation as a Function of Age: I. A Statistical Analysis
Journal of Gerontology ·Ross A. McFarland, Richard G. Domey, Alan Warren, David C. Ward
196077
15
Analysis of the Internal Transcribed Spacer 2 (ITS2) Region of Scuticociliates and Related Taxa (Ciliophora, Oligohymenophorea) to Infer their Evolution and Phylogeny
Protist ·Miao Miao, Alan Warren, WEIBO B. SONG, Wang Shi, Huimin Shang, Zigui Chen
200876
16
Diversity of free-living marine ciliates (Alveolata, Ciliophora): Faunal studies in coastal waters of China during the years 2011–2016
European Journal of Protistology ·Weiwei Liu, Jiamei Jiang, Yuan Xu, Xuming Pan, Zhishuai Qu, Xiaotian Luo, Hamed A. El‐Serehy, Alan Warren
201771
17
Planktonic protist communities in a semi-enclosed mariculture pond: structural variation and correlation with environmental conditions
Journal of the Marine Biological Association of the United Kingdom ·Henglong Xu, WEIBO B. SONG, Alan Warren, Khaled A. S. Al‐Rasheid, Saleh A. Alfarraj, Jun Gong, Xiaozhong Hu
200869
18
Systematic studies on ciliates (Alveolata, Ciliophora) in China: Progress and achievements based on molecular information
European Journal of Protistology ·Feng Gao, Jie Huang, Yan Feng Zhao, Lifang Li, Weiwei Liu, Miao Miao, Qianqian Zhang, Jiamei Li
201768
19
Further insights into the phylogeny of two ciliate classes Nassophorea and Prostomatea (Protista, Ciliophora)
Molecular Phylogenetics and Evolution ·Qianqian Zhang, Zhenzhen Yi, Fan Xinpeng, Alan Warren, Jun Gong, WEIBO B. SONG
201360
20
Species delimitation for the molecular taxonomy and ecology of the widely distributed microbial eukaryote genus Euplotes (Alveolata, Ciliophora)
Proceedings of the Royal Society B Biological Sciences ·Yan Feng Zhao, Zhenzhen Yi, Alan Warren, WEIBO B. SONG
201859

About Alan Warren

Alan Warren is a scholar working on Ecology, Environmental Chemistry, Oceanography, Molecular Biology and Pollution, having authored 396 papers that have together received 9.2k indexed citations. Recurring topics across this work include Microbial Community Ecology and Physiology (311 papers), Protist diversity and phylogeny (309 papers), Methane Hydrates and Related Phenomena (151 papers), Marine and coastal ecosystems (85 papers), Genomics and Phylogenetic Studies (44 papers), Marine Biology and Ecology Research (38 papers), Environmental DNA in Biodiversity Studies (18 papers) and Marine Ecology and Invasive Species (12 papers). The work is most often cited by research in Ecology (6.9k citations), Environmental Chemistry (2.6k citations), Oceanography (2.3k citations), Molecular Biology (6.2k citations) and Pollution (468 citations). Alan Warren has collaborated with scholars based in United Kingdom, China and Saudi Arabia. Frequent co-authors include WEIBO B. SONG, Khaled A. S. Al‐Rasheid, Xiaozhong Hu, Jun Gong, Zhenzhen Yi, Henglong Xu, Chen Shao, Xiaofeng Lin, Olivier Decamp and Saleh A. Alfarraj. Their work appears in journals such as Acta Protozoologica, INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, Frontiers in Microbiology, Marine Pollution Bulletin and Zoological Journal of the Linnean Society.

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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