Per M. Jørgensen

1.7k total citations
175 papers, 1.3k citations indexed

About

Per M. Jørgensen is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Cell Biology. According to data from OpenAlex, Per M. Jørgensen has authored 175 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 144 papers in Ecology, Evolution, Behavior and Systematics, 140 papers in Plant Science and 32 papers in Cell Biology. Recurrent topics in Per M. Jørgensen's work include Lichen and fungal ecology (135 papers), Botany and Plant Ecology Studies (113 papers) and Mycorrhizal Fungi and Plant Interactions (44 papers). Per M. Jørgensen is often cited by papers focused on Lichen and fungal ecology (135 papers), Botany and Plant Ecology Studies (113 papers) and Mycorrhizal Fungi and Plant Interactions (44 papers). Per M. Jørgensen collaborates with scholars based in Norway, United Kingdom and Sweden. Per M. Jørgensen's co-authors include Mats Wedin, Stefan Ekman, D. J. Galloway, P. W. James, Mónica A.G. Otálora, Tor Tønsberg, Elisabeth Wiklund, Charles E. Jarvis, Harrie J. M. Sipman and Aino Henßen and has published in prestigious journals such as Molecular Phylogenetics and Evolution, Taxon and Fungal Diversity.

In The Last Decade

Per M. Jørgensen

160 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
Per M. Jørgensen Norway 17 1.2k 1.1k 294 69 54 175 1.3k
Alan M. Fryday United States 17 947 0.8× 806 0.8× 287 1.0× 77 1.1× 43 0.8× 108 1.0k
Alan Orange United Kingdom 12 1.4k 1.2× 1.3k 1.2× 400 1.4× 57 0.8× 41 0.8× 48 1.5k
Jan‐Eric Mattsson Sweden 16 974 0.8× 873 0.8× 305 1.0× 44 0.6× 42 0.8× 52 1.1k
Ingvar Kärnefelt United States 23 1.8k 1.5× 1.6k 1.5× 496 1.7× 107 1.6× 56 1.0× 140 1.9k
Rolf Santesson Sweden 14 1.2k 1.0× 1.1k 1.1× 308 1.0× 86 1.2× 30 0.6× 34 1.3k
PW James 5 1.0k 0.9× 900 0.9× 276 0.9× 30 0.4× 34 0.6× 7 1.1k
Tor Tønsberg Norway 21 2.1k 1.8× 1.9k 1.8× 469 1.6× 113 1.6× 65 1.2× 133 2.2k
Arne Thell United States 24 1.7k 1.5× 1.6k 1.6× 622 2.1× 72 1.0× 92 1.7× 130 1.8k
Kerry Knudsen United States 16 1.2k 1.0× 1.0k 1.0× 528 1.8× 51 0.7× 48 0.9× 170 1.2k
Louise Lindblom Norway 13 638 0.5× 523 0.5× 171 0.6× 51 0.7× 31 0.6× 26 690

Countries citing papers authored by Per M. Jørgensen

Since Specialization
Citations

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

Fields of papers citing papers by Per M. Jørgensen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Per M. Jørgensen. 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 Per M. Jørgensen. The network helps show where Per M. Jørgensen may publish in the future.

Co-authorship network of co-authors of Per M. Jørgensen

This figure shows the co-authorship network connecting the top 25 collaborators of Per M. Jørgensen. A scholar is included among the top collaborators of Per M. Jørgensen 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 Per M. Jørgensen. Per M. Jørgensen 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.
Wedin, Mats, Mónica A.G. Otálora, & Per M. Jørgensen. (2017). The genus Paracollema validated (Collemataceae, Peltigerales, Lecanoromycetes). Studies in Fungi. 208–209. 1 indexed citations
2.
Jørgensen, Per M., et al.. (2016). Scytinium singulare, a new lichen species from coastal California. 11(1). 1–6.
3.
Jørgensen, Per M.. (2014). Kiropraktikkens historie i Danmark. University of Southern Denmark Research Portal (University of Southern Denmark). 3 indexed citations
4.
Jørgensen, Per M.. (2014). Taxonomy and nomenclature of Collema fasciculare (L.) G. H. Weber. The Lichenologist. 46(4). 594–594. 6 indexed citations
5.
Otálora, Mónica A.G., Per M. Jørgensen, & Mats Wedin. (2013). A revised generic classification of the jelly lichens, Collemataceae. Fungal Diversity. 64(1). 275–293. 71 indexed citations
6.
Jørgensen, Per M.. (2012). New names in Gunnerus's FloraNorvegica, and their typification. Taxon. 61(5). 1088–1095. 2 indexed citations
7.
Jørgensen, Per M., Pieter van den Boom, & Emmanuël Sérusiaux. (2009). Notes on the lichen genus Erioderma in La Réunion. Open Repository and Bibliography (University of Liège). 6 indexed citations
8.
Nordin, Anders & Per M. Jørgensen. (2009). Lichens known mainly from Norwegian type-specimens. 21(1). 1–20. 4 indexed citations
9.
Jørgensen, Per M. & Harrie J. M. Sipman. (2006). The lichen family Pannariaceae in the montane regions of New Guinea (Papers to Commemorate the 100th Issue of the Journal of the Hattori Botanical Laboratory) -- (Lichenology). Journal of The Hattori Botanical Laboratory. 695–720. 2 indexed citations
10.
Jørgensen, Per M.. (2006). The lichen family Pannariaceae in the montane regions of New Guinea. Journal of The Hattori Botanical Laboratory. 695–720. 12 indexed citations
11.
Jørgensen, Per M.. (2006). Pigerne, drengene og gymnasieidrætten i det 20. århundrede. University of Southern Denmark Research Portal (University of Southern Denmark). 22. 3 indexed citations
12.
Jørgensen, Per M.. (2004). Rankless names in the Code?. Taxon. 53(1). 162–162. 6 indexed citations
13.
Jørgensen, Per M.. (2002). Further notes on Asian species of the lichen genus Fuscopannaria. Journal of The Hattori Botanical Laboratory. 225–229. 4 indexed citations
15.
Jørgensen, Per M.. (2000). Notes on some East-Asian species of the lichen genus Fuscopannaria. Journal of The Hattori Botanical Laboratory. 247–259. 5 indexed citations
16.
Jørgensen, Per M.. (1998). Botanical Latin, quo vadis?. Taxon. 47(2). 431–433. 2 indexed citations
17.
Jørgensen, Per M.. (1994). Studies in the lichen family Pannariaceae-6-The taxonomy and phytogeography of Pannaria Del.s.lat. (Proceedings of the Symposia on Bryology and Lichenology at the 15 International Botanical Congress) -- (Taxonomy and Phytogeography of Lichens). Journal of The Hattori Botanical Laboratory. 197–206. 2 indexed citations
18.
Galloway, D. J. & Per M. Jørgensen. (1990). Bartlettiella , a new lichen genus from New Zealand, with notes on a new species of Melanelia and a new chemodeme of Bryoria indonesica in New Zealand. New Zealand Journal of Botany. 28(1). 5–12. 8 indexed citations
19.
Jørgensen, Per M. & D. J. Galloway. (1983). Bryoria (lichenised Ascomycotina) in New Zealand. New Zealand Journal of Botany. 21(3). 335–340. 6 indexed citations
20.
Ahtı, Teuvo & Per M. Jørgensen. (1971). Notes on the Lichens of Newfoundland. I. Erioderma boreale, New to North America. The Bryologist. 74(3). 378–378. 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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