Leigh A. Johnson

5.7k total citations
56 papers, 2.6k citations indexed

About

Leigh A. Johnson is a scholar working on Ecology, Evolution, Behavior and Systematics, Molecular Biology and Plant Science. According to data from OpenAlex, Leigh A. Johnson has authored 56 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Ecology, Evolution, Behavior and Systematics, 30 papers in Molecular Biology and 26 papers in Plant Science. Recurrent topics in Leigh A. Johnson's work include Plant Diversity and Evolution (31 papers), Plant and Fungal Species Descriptions (24 papers) and Genetic diversity and population structure (15 papers). Leigh A. Johnson is often cited by papers focused on Plant Diversity and Evolution (31 papers), Plant and Fungal Species Descriptions (24 papers) and Genetic diversity and population structure (15 papers). Leigh A. Johnson collaborates with scholars based in United States, Argentina and Spain. Leigh A. Johnson's co-authors include Pamela S. Soltis, Raúl Pozner, Andrea Cosacov, Steven D. Leavitt, Larry L. St. Clair, Alicia N. Sérsic, Andrea A. Cocucci, Mark Porter, Jack W. Sites and Mariana Morando and has published in prestigious journals such as PLoS ONE, American Journal of Botany and Journal of Biogeography.

In The Last Decade

Leigh A. Johnson

54 papers receiving 2.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Leigh A. Johnson United States 22 1.9k 1.3k 1.1k 565 282 56 2.6k
Mark A. Carine United Kingdom 28 1.8k 0.9× 1.1k 0.9× 1.3k 1.2× 677 1.2× 213 0.8× 88 2.9k
David C. Tank United States 27 1.5k 0.8× 1.2k 0.9× 972 0.9× 598 1.1× 131 0.5× 59 2.4k
Mark E. Mort United States 25 2.1k 1.1× 1.6k 1.3× 1.2k 1.1× 721 1.3× 191 0.7× 75 3.0k
Gonzalo Nieto Feliner Spain 26 1.8k 0.9× 1.2k 0.9× 1.8k 1.7× 1.1k 1.9× 274 1.0× 107 3.1k
Ze‐Long Nie China 29 1.9k 1.0× 1.6k 1.3× 1.1k 1.0× 542 1.0× 218 0.8× 98 2.9k
Sven Buerki United States 27 1.7k 0.9× 1.0k 0.8× 802 0.8× 416 0.7× 109 0.4× 123 2.5k
Clarisse Palma‐Silva Brazil 25 1.7k 0.9× 601 0.5× 650 0.6× 845 1.5× 304 1.1× 87 2.5k
John V. Freudenstein United States 30 2.7k 1.4× 2.3k 1.8× 1.2k 1.1× 445 0.8× 282 1.0× 82 3.5k
Matthew A. Gitzendanner United States 28 2.0k 1.1× 2.0k 1.5× 1.6k 1.5× 1.4k 2.4× 277 1.0× 66 3.8k
Niklas Wikström Sweden 26 2.1k 1.1× 1.3k 1.0× 1.1k 1.0× 358 0.6× 127 0.5× 43 3.0k

Countries citing papers authored by Leigh A. Johnson

Since Specialization
Citations

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

Fields of papers citing papers by Leigh A. Johnson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Leigh A. Johnson. 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 Leigh A. Johnson. The network helps show where Leigh A. Johnson may publish in the future.

Co-authorship network of co-authors of Leigh A. Johnson

This figure shows the co-authorship network connecting the top 25 collaborators of Leigh A. Johnson. A scholar is included among the top collaborators of Leigh A. Johnson 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 Leigh A. Johnson. Leigh A. Johnson 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.
Martin, Juca A. B. San, Leigh A. Johnson, Silvia S. Denham, & Raúl Pozner. (2024). Evolution of pollen morphology in Calyceraceae and insights into its early evolutionary differentiation. Botanical Journal of the Linnean Society. 208(4). 430–451.
2.
Pozner, Raúl, Leigh A. Johnson, & Silvia S. Denham. (2021). Evolution of flower morphology and a natural re‐arrangement of Calyceraceae. Taxon. 70(3). 589–619. 4 indexed citations
3.
Johnson, Leigh A., et al.. (2019). Unraveling patterns and processes of diversification in the South Andean-Patagonian Nassauvia subgenus Strongyloma (Asteraceae, Nassauvieae). Molecular Phylogenetics and Evolution. 136. 164–182. 10 indexed citations
4.
Barber, Robert C., et al.. (2019). Circulating mitochondrial DNA: New indices of type 2 diabetes-related cognitive impairment in Mexican Americans. PLoS ONE. 14(3). e0213527–e0213527. 52 indexed citations
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Aguilar, César, Luciano Javier Ávila, Ignacio De la Riva, et al.. (2018). The shadow of the past: Convergence of young and old South American desert lizards as measured by head shape traits. Ecology and Evolution. 8(23). 11399–11409. 18 indexed citations
7.
Johnson, Leigh A. & J. Mark Porter. (2017). Fates of angiosperm species following long‐distance dispersal: Examples from American amphitropical Polemoniaceae. American Journal of Botany. 104(11). 1729–1744. 11 indexed citations
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Johnson, Leigh A., et al.. (2014). Microsatellite primer development for post oak, Quercus stellata (Fagaceae). Applications in Plant Sciences. 2(10). 9 indexed citations
12.
Sede, Silvana M., et al.. (2012). Phylogeography and palaeodistribution modelling in the Patagonian steppe: the case of Mulinum spinosum (Apiaceae). Journal of Biogeography. 39(6). 1041–1057. 31 indexed citations
13.
Leavitt, Steven D., Leigh A. Johnson, & Larry L. St. Clair. (2011). Species delimitation and evolution in morphologically and chemically diverse communities of the lichen‐forming genus Xanthoparmelia (Parmeliaceae, Ascomycota) in western North America. American Journal of Botany. 98(2). 175–188. 71 indexed citations
14.
Pozner, Raúl, et al.. (2011). Evolutionary origin of the Asteraceae capitulum: Insights from Calyceraceae. American Journal of Botany. 99(1). 1–13. 95 indexed citations
15.
Leavitt, Steven D., Leigh A. Johnson, Trevor Goward, & Larry L. St. Clair. (2011). Species delimitation in taxonomically difficult lichen-forming fungi: An example from morphologically and chemically diverse Xanthoparmelia (Parmeliaceae) in North America. Molecular Phylogenetics and Evolution. 60(3). 317–332. 80 indexed citations
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Johnson, Leigh A., et al.. (2008). Nuclear and cpDNA sequences combined provide strong inference of higher phylogenetic relationships in the phlox family (Polemoniaceae). Molecular Phylogenetics and Evolution. 48(3). 997–1012. 24 indexed citations
18.
Weese, Terri L. & Leigh A. Johnson. (2005). Utility of NADP-dependent isocitrate dehydrogenase for species-level evolutionary inference in angiosperm phylogeny: A case study in Saltugilia. Molecular Phylogenetics and Evolution. 36(1). 24–41. 16 indexed citations
19.
Johnson, Leigh A. & Terri L. Weese. (2000). Geographic distribution, morphological and molecular characterization, and relationships of Lathrocasis tenerrima (Polemoniaceae). Western North American Naturalist. 60(4). 2. 5 indexed citations
20.
Soltis, Pamela S., Daniel L. Nickrent, Leigh A. Johnson, et al.. (1997). Angiosperm Phylogeny Inferred from 18S Ribosomal DNA Sequences. Annals of the Missouri Botanical Garden. 84(1). 1–1. 358 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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