Per G. Ihlen

660 total citations
24 papers, 579 citations indexed

About

Per G. Ihlen is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Cell Biology. According to data from OpenAlex, Per G. Ihlen has authored 24 papers receiving a total of 579 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Ecology, Evolution, Behavior and Systematics, 18 papers in Plant Science and 4 papers in Cell Biology. Recurrent topics in Per G. Ihlen's work include Lichen and fungal ecology (21 papers), Botany and Plant Ecology Studies (15 papers) and Mycorrhizal Fungi and Plant Interactions (12 papers). Per G. Ihlen is often cited by papers focused on Lichen and fungal ecology (21 papers), Botany and Plant Ecology Studies (15 papers) and Mycorrhizal Fungi and Plant Interactions (12 papers). Per G. Ihlen collaborates with scholars based in Norway, Sweden and United States. Per G. Ihlen's co-authors include Mats Wedin, John‐Arvid Grytnes, Einar Heegaard, Magne Sætersdal, Ivar Gjerde, Stefan Ekman, Tor Tønsberg, Reidun Pommeresche, Torstein Solhøy and John Skartveit and has published in prestigious journals such as Biological Conservation, Biological Journal of the Linnean Society and The Bryologist.

In The Last Decade

Per G. Ihlen

24 papers receiving 489 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 G. Ihlen Norway 12 440 369 138 101 94 24 579
R. Troy McMullin Canada 15 711 1.6× 526 1.4× 92 0.7× 171 1.7× 256 2.7× 103 830
Joshua S. Lynn United States 12 194 0.4× 193 0.5× 174 1.3× 87 0.9× 60 0.6× 22 410
Håkon Holien Norway 20 951 2.2× 778 2.1× 149 1.1× 120 1.2× 256 2.7× 59 1.1k
Jiří Košnar Czechia 15 384 0.9× 412 1.1× 97 0.7× 96 1.0× 64 0.7× 48 612
Volker Otte Germany 13 340 0.8× 261 0.7× 38 0.3× 58 0.6× 68 0.7× 41 458
Arthur R. Keith United States 8 215 0.5× 118 0.3× 193 1.4× 30 0.3× 91 1.0× 15 411
Juan Carlos Moreno Sáiz Spain 15 224 0.5× 279 0.8× 250 1.8× 28 0.3× 24 0.3× 38 526
Shannel P. Courtney New Zealand 7 203 0.5× 187 0.5× 109 0.8× 26 0.3× 32 0.3× 14 363
Mario Sanz Elorza Spain 8 123 0.3× 289 0.8× 120 0.9× 39 0.4× 80 0.9× 38 435
N. G. Hodgetts United Kingdom 15 531 1.2× 468 1.3× 85 0.6× 13 0.1× 68 0.7× 49 667

Countries citing papers authored by Per G. Ihlen

Since Specialization
Citations

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

Fields of papers citing papers by Per G. Ihlen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Per G. Ihlen

This figure shows the co-authorship network connecting the top 25 collaborators of Per G. Ihlen. A scholar is included among the top collaborators of Per G. Ihlen 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 G. Ihlen. Per G. Ihlen 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.
Tømmervik, Hans, Bernt Johansen, Stein Rune Karlsen, & Per G. Ihlen. (2011). Overvåking av vinterbeiter i Vest-Finnmark og Karasjok 1998-2005-2010 - Resultater fra feltrutene. Duo Research Archive (University of Oslo). 2 indexed citations
2.
Ihlen, Per G., et al.. (2011). Naturfaglige registreringer av bekkekløfter i Norge. Sammenstilling av registreringene 2007-2010. Duo Research Archive (University of Oslo). 1 indexed citations
3.
Simensen, Trond, et al.. (2010). Etterundersøkelser ved små kraftverk. BIBSYS Brage (BIBSYS (Norway)). 1 indexed citations
4.
Ihlen, Per G. & Mats Wedin. (2008). An annotated key to the lichenicolous Ascomycota (including mitosporic morphs) of Sweden. Nova Hedwigia. 86(3-4). 275–365. 63 indexed citations
5.
Huhtinen, Seppo, David L. Hawksworth, & Per G. Ihlen. (2008). Observations on two glassy-haired lichenicolous discomycetes. The Lichenologist. 40(6). 549–557. 9 indexed citations
6.
Wedin, Mats, Per G. Ihlen, & Dagmar Triebel. (2007). Scutula tuberculosa, the correct name of the Scutula growing on Solorina spp., with a key to Scutula s. str. in the Northern Hemisphere. The Lichenologist. 39(4). 329–333. 11 indexed citations
7.
Ihlen, Per G. & Mats Wedin. (2006). Cercidospora alpina sp. nov. and a key to the known species in Fennoscandia. The Lichenologist. 39(1). 1–6. 12 indexed citations
8.
Ihlen, Per G. & Mats Wedin. (2006). Notes on two lichenicolous fungi on Cladonia botrytes in Scandinavia. 18. 38–40. 8 indexed citations
9.
10.
Ihlen, Per G. & Alan M. Fryday. (2004). Rhizocarpon anaperum new to Svalbard. The Lichenologist. 36(5). 343–344. 6 indexed citations
11.
Ihlen, Per G., Håkon Holien, & Tor Tønsberg. (2004). Two New Species of Dactylospora (Dactylosporaceae, Lecanorales), with a Key to the Known Species in Scandinavia. The Bryologist. 107(3). 357–362. 17 indexed citations
12.
Ihlen, Per G.. (2004). A new species of Lichenostigma (Lichenotheliaceae, Arthoniales) from Scandinavia. The Lichenologist. 36(3-4). 183–189. 15 indexed citations
13.
14.
Ihlen, Per G. & Stefan Ekman. (2002). Outline of phylogeny and character evolution in Rhizocarpon (Rhizocarpaceae, lichenized Ascomycota) based on nuclear ITS and mitochondrial SSU ribosomal DNA sequences. Biological Journal of the Linnean Society. 77(4). 535–546. 40 indexed citations
15.
Ihlen, Per G. & Alan M. Fryday. (2002). Rhizocarpon Timdalii, a New Lichen Species from North-West Europe and North-east North America. The Lichenologist. 34(2). 95–100. 8 indexed citations
16.
Ihlen, Per G., Ivar Gjerde, & Magne Sætersdal. (2001). Structural indicators of Richness and rarity of epiphytic lichens on Corylus avellana in two different forest types within a nature reserve in south-western Norway. The Lichenologist. 33(3). 215–229. 32 indexed citations
17.
Ihlen, Per G. & B. J. Coppins. (1999). Two species of Arthothelium (Arthoniaceae, Arthoniales) new to Scandinavia. Nova Hedwigia. 69(3-4). 391–397. 1 indexed citations
18.
Ihlen, Per G.. (1998). The Lichenicolous Fungi on Species of the Genera Baeomyces, Dibaeis, and Icmadophila in Norway. The Lichenologist. 30(1). 27–57. 27 indexed citations
19.
Ihlen, Per G.. (1997). The lichen genus Baeomyces (Leotiales, Ascomycotina) in Norway. Nova Hedwigia. 64(1-2). 137–146. 4 indexed citations
20.
Ihlen, Per G. & Tor Tønsberg. (1996). The Lichenicolous Genus Lettauia in North America. The Bryologist. 99(1). 32–32. 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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