James S. Metcalf

10.1k total citations · 2 hit papers
111 papers, 7.5k citations indexed

About

James S. Metcalf is a scholar working on Environmental Chemistry, Ecology, Evolution, Behavior and Systematics and Oceanography. According to data from OpenAlex, James S. Metcalf has authored 111 papers receiving a total of 7.5k indexed citations (citations by other indexed papers that have themselves been cited), including 78 papers in Environmental Chemistry, 40 papers in Ecology, Evolution, Behavior and Systematics and 35 papers in Oceanography. Recurrent topics in James S. Metcalf's work include Aquatic Ecosystems and Phytoplankton Dynamics (77 papers), Biocrusts and Microbial Ecology (39 papers) and Marine and coastal ecosystems (35 papers). James S. Metcalf is often cited by papers focused on Aquatic Ecosystems and Phytoplankton Dynamics (77 papers), Biocrusts and Microbial Ecology (39 papers) and Marine and coastal ecosystems (35 papers). James S. Metcalf collaborates with scholars based in United Kingdom, United States and Germany. James S. Metcalf's co-authors include Geoffrey A. Codd, Louise F. Morrison, Paul Alan Cox, Sandra Anne Banack, G. A. Codd, S. G. Bell, Kenneth A. Beattie, Kunimitsu Kaya, Stephan Pflugmacher and C. J. Ward and has published in prestigious journals such as Proceedings of the National Academy of Sciences, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

James S. Metcalf

111 papers receiving 7.1k citations

Hit Papers

align trajectories sort by overperformance

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.

Cyanobacterial toxins: risk management for health protection

2004 946 citations Geoffrey A. Codd, Louise F. Morrison et al. profile →
Diverse taxa of cyanobacteria produce β- N -methylamino- l -alanine, a neurotoxic amino acid

2005 544 citations Paul Alan Cox, Sandra Anne Banack et al. Proceedings of the National Academy of Sciences profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
James S. Metcalf United Kingdom	48	4.9k	2.7k	1.8k	1.7k	1.1k	111	7.5k
Geoffrey A. Codd United Kingdom	58	10.8k 2.2×	6.5k 2.4×	3.7k 2.0×	3.8k 2.2×	1.6k 1.5×	148	14.4k
Daniel R. Dietrich Germany	55	3.9k 0.8×	2.3k 0.8×	1.6k 0.9×	1.4k 0.8×	1.2k 1.1×	180	8.7k
Stephan Pflugmacher Germany	53	4.9k 1.0×	2.5k 0.9×	1.7k 0.9×	2.2k 1.3×	898 0.8×	193	8.9k
G. A. Codd United Kingdom	47	3.1k 0.6×	1.9k 0.7×	1.2k 0.6×	1.1k 0.7×	1.2k 1.1×	140	5.3k
Miquel Lürling Netherlands	61	7.9k 1.6×	4.7k 1.7×	3.7k 2.0×	1.4k 0.8×	627 0.6×	198	12.9k
Birgitta Bergman Sweden	47	2.0k 0.4×	3.9k 1.4×	4.5k 2.4×	1.6k 1.0×	2.9k 2.6×	205	9.7k
Sandra Anne Banack United States	39	1.7k 0.3×	565 0.2×	1.4k 0.7×	887 0.5×	1.8k 1.7×	94	5.8k
Ian R. Falconer Australia	47	5.6k 1.1×	2.6k 0.9×	1.5k 0.8×	1.9k 1.1×	543 0.5×	121	7.3k
Georg Pohnert Germany	53	1.9k 0.4×	3.8k 1.4×	2.6k 1.4×	725 0.4×	2.6k 2.4×	281	9.8k
Claudia Wiegand Germany	39	3.4k 0.7×	1.7k 0.6×	1.2k 0.7×	1.3k 0.7×	584 0.5×	90	5.7k

Countries citing papers authored by James S. Metcalf

Since Specialization

Citations

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

Fields of papers citing papers by James S. Metcalf

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of James S. Metcalf

This figure shows the co-authorship network connecting the top 25 collaborators of James S. Metcalf. A scholar is included among the top collaborators of James S. Metcalf 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 James S. Metcalf. James S. Metcalf 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

Nowruzi, Bahareh, et al.. (2024). Characterization of Neowestiellopsis persica A1387 (Hapalosiphonaceae) based on the cpcA, psbA, rpoC1, nifH and nifD gene sequences. SHILAP Revista de lepidopterología. 24(1). 57–57. 2 indexed citations

Gerlach, Samantha L., James S. Metcalf, Rachael A. Dunlop, et al.. (2024). Kalata B1 Enhances Temozolomide Toxicity to Glioblastoma Cells. Biomedicines. 12(10). 2216–2216. 1 indexed citations

Metcalf, James S., Sandra Anne Banack, Peter B. Wyatt, Peter B. Nunn, & Paul Alan Cox. (2023). A Direct Analysis of β-N-methylamino-l-alanine Enantiomers and Isomers and Its Application to Cyanobacteria and Marine Mollusks. Toxins. 15(11). 639–639. 1 indexed citations

Nowruzi, Bahareh, et al.. (2022). A Novel Microcystin-Producing Cyanobacterial Species from the Genus Desmonostoc, Desmonostoc alborizicum sp. nov., Isolated from a Water Supply System of Iran. Current Microbiology. 80(1). 49–49. 13 indexed citations

Metcalf, James S., et al.. (2021). In Vivo and In Vitro Toxicity Testing of Cyanobacterial Toxins: A Mini-Review. Reviews of Environmental Contamination and Toxicology. 258. 109–150. 8 indexed citations

Nowruzi, Bahareh, et al.. (2021). Plant-cyanobacteria interactions: Beneficial and harmful effects of cyanobacterial bioactive compounds on soil-plant systems and subsequent risk to animal and human health. Phytochemistry. 192. 112959–112959. 30 indexed citations

Metcalf, James S., et al.. (2020). Cyanotoxin Analysis and Amino Acid Profiles of Cyanobacterial Food Items from Chad. Neurotoxicity Research. 39(1). 72–80. 6 indexed citations

Metcalf, James S. & Geoffrey A. Codd. (2020). Co-Occurrence of Cyanobacteria and Cyanotoxins with Other Environmental Health Hazards: Impacts and Implications. Toxins. 12(10). 629–629. 60 indexed citations

Metcalf, James S., Doug Lobner, Sandra Anne Banack, et al.. (2017). Analysis of BMAA enantiomers in cycads, cyanobacteria, and mammals: in vivo formation and toxicity of d-BMAA. Amino Acids. 49(8). 1427–1439. 24 indexed citations

10.

Banack, Sandra Anne, James S. Metcalf, Liying Jiang, et al.. (2012). Cyanobacteria Produce N-(2-Aminoethyl)Glycine, a Backbone for Peptide Nucleic Acids Which May Have Been the First Genetic Molecules for Life on Earth. PLoS ONE. 7(11). e49043–e49043. 57 indexed citations

11.

Cox, Paul Alan, Renee Richer, James S. Metcalf, et al.. (2009). Cyanobacteria and BMAA exposure from desert dust: A possible link to sporadic ALS among Gulf War veterans. Amyotrophic Lateral Sclerosis. 10(sup2). 109–117. 133 indexed citations

12.

Craighead, Derek, et al.. (2009). Presence of the neurotoxic amino acids β-N-methylamino-L-alanine (BMAA) and 2,4-diamino-butyric acid (DAB) in shallow springs from the Gobi Desert. Amyotrophic Lateral Sclerosis. 10(sup2). 96–100. 35 indexed citations

13.

Rodrı́guez, Eva M., et al.. (2007). Kinetics of the oxidation of cylindrospermopsin and anatoxin-a with chlorine, monochloramine and permanganate. Water Research. 41(9). 2048–2056. 86 indexed citations

14.

Metcalf, James S., Jussi Meriluoto, & G. A. Codd. (2006). Legal and security requirements for the air transportation of cyanotoxins and toxigenic cyanobacterial cells for legitimate research and analytical purposes. Toxicology Letters. 163(2). 85–90. 7 indexed citations

15.

Metcalf, James S., Lothar Krienitz, Andreas Ballot, et al.. (2006). Analysis of the cyanotoxins anatoxin-a and microcystins in Lesser Flamingo feathers. Toxicological & Environmental Chemistry Reviews. 88(1). 159–167. 29 indexed citations

16.

Cox, Paul Alan, Sandra Anne Banack, Susan J. Murch, et al.. (2005). Diverse taxa of cyanobacteria produce β- N -methylamino- l -alanine, a neurotoxic amino acid. Proceedings of the National Academy of Sciences. 102(14). 5074–5078. 544 indexed citations breakdown →

17.

Meriluoto, Jussi, Geoffrey A. Codd, James S. Metcalf, et al.. (2005). Toxic : cyanobacterial monitoring and cyanotoxin analysis. Doria (University of Helsinki). 150 indexed citations

18.

Krienitz, Lothar, Andreas Ballot, Kiplagat Kotut, et al.. (2003). Contribution of hot spring cyanobacteria to the mysterious deaths of Lesser Flamingos at Lake Bogoria, Kenya. FEMS Microbiology Ecology. 43(2). 141–148. 224 indexed citations

19.

Metcalf, James S., Kenneth A. Beattie, Stephan Pflugmacher, & Geoffrey A. Codd. (2000). Immuno-crossreactivity and toxicity assessment of conjugation products of the cyanobacterial toxin, microcystin-LR. FEMS Microbiology Letters. 189(2). 155–158. 101 indexed citations

20.

Metcalf, James S., Per Hyenstrand, Karen Beattie, & G. A. Codd. (2000). Effects of physicochemical variables and cyanobacterial extracts on the immunoassay of microcystin-LR by two ELISA kits. Journal of Applied Microbiology. 89(3). 532–538. 53 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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