Geir Hestmark

4.7k total citations
49 papers, 870 citations indexed

About

Geir Hestmark is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Atmospheric Science. According to data from OpenAlex, Geir Hestmark has authored 49 papers receiving a total of 870 indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Ecology, Evolution, Behavior and Systematics, 24 papers in Plant Science and 9 papers in Atmospheric Science. Recurrent topics in Geir Hestmark's work include Lichen and fungal ecology (34 papers), Botany and Plant Ecology Studies (19 papers) and Mycorrhizal Fungi and Plant Interactions (10 papers). Geir Hestmark is often cited by papers focused on Lichen and fungal ecology (34 papers), Botany and Plant Ecology Studies (19 papers) and Mycorrhizal Fungi and Plant Interactions (10 papers). Geir Hestmark collaborates with scholars based in Norway, Germany and Denmark. Geir Hestmark's co-authors include Knut Rydgren, Rune Halvorsen Økland, B. Schroeter, L. Kappen, Inger Nordal, Martin Sommerkorn, Nina Sletvold, Christoph Scheidegger, Jana Barbro Winkler and François Lutzoni and has published in prestigious journals such as Nature, PLoS ONE and Ecology.

In The Last Decade

Geir Hestmark

47 papers receiving 779 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Geir Hestmark Norway 15 566 417 244 216 119 49 870
Juan Antonio Campos Spain 16 256 0.5× 374 0.9× 368 1.5× 236 1.1× 87 0.7× 53 762
Marcel Barbéro France 15 279 0.5× 469 1.1× 170 0.7× 129 0.6× 123 1.0× 61 775
Mercedes Herrera Spain 16 246 0.4× 406 1.0× 268 1.1× 184 0.9× 79 0.7× 57 733
Miris Castello Italy 14 515 0.9× 323 0.8× 112 0.5× 305 1.4× 56 0.5× 38 731
Andrew B. Leslie United States 22 918 1.6× 303 0.7× 384 1.6× 117 0.5× 135 1.1× 52 1.3k
R. F. Parsons Australia 18 320 0.6× 352 0.8× 514 2.1× 300 1.4× 186 1.6× 44 950
W.L. Halvorson United States 12 134 0.2× 255 0.6× 168 0.7× 252 1.2× 118 1.0× 44 593
Brita M. Svensson Sweden 20 626 1.1× 835 2.0× 488 2.0× 612 2.8× 127 1.1× 50 1.4k
Richard Lupia United States 13 1.1k 1.9× 308 0.7× 214 0.9× 67 0.3× 71 0.6× 25 1.4k
Claudio Donoso Zegers Chile 12 263 0.5× 181 0.4× 412 1.7× 182 0.8× 262 2.2× 26 804

Countries citing papers authored by Geir Hestmark

Since Specialization
Citations

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

Fields of papers citing papers by Geir Hestmark

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Geir Hestmark

This figure shows the co-authorship network connecting the top 25 collaborators of Geir Hestmark. A scholar is included among the top collaborators of Geir Hestmark 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 Geir Hestmark. Geir Hestmark 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.
Hestmark, Geir. (2017). Lectotypification of Umbilicaria torrefacta (Lightf. ) Schrad.. The Lichenologist. 49(2). 167–169.
2.
3.
Hestmark, Geir. (2016). The lichen genus Umbilicaria in Ecuador. Nordic Journal of Botany. 34(3). 257–268. 5 indexed citations
4.
Hestmark, Geir. (2014). Lectotypification of the name Umbilicaria nylanderiana (Umbilicariaceae). Taxon. 63(4). 914–917. 5 indexed citations
5.
Nordli, Øyvind, Geir Hestmark, Rasmus Benestad, & Ketil Isaksen. (2014). The Oslo temperature series 1837-2012: homogeneity testing and temperature analysis. International Journal of Climatology. 35(12). 3486–3504. 4 indexed citations
6.
Jettestuen, Espen, Anders Nermoen, Geir Hestmark, Einar Timdal, & Joachim Mathiesen. (2010). Competition on the Rocks: Community Growth and Tessellation. PLoS ONE. 5(9). e12820–e12820. 9 indexed citations
7.
Hestmark, Geir. (2010). Typification of the Andean taxa of <I>Umbilicaria</I> described by William Nylander. Mycotaxon. 111(1). 51–63. 7 indexed citations
8.
Haapala, Ilmari, et al.. (2008). History of Geology in Norden. Episodes. 31(1). 185–192. 1 indexed citations
9.
Hestmark, Geir, et al.. (2007). Early recruitment equals long-term relative abundance in an alpine saxicolous lichen guild. Mycologia. 99(2). 207–214. 8 indexed citations
10.
Rydgren, Knut, Rune Halvorsen Økland, & Geir Hestmark. (2004). DISTURBANCE SEVERITY AND COMMUNITY RESILIENCE IN A BOREAL FOREST. Ecology. 85(7). 1906–1915. 122 indexed citations
11.
Hestmark, Geir, Einar Timdal, & Tor Tønsberg. (2002). Hildur Krog: a birthday tribute. The Lichenologist. 34(4). 275–276. 1 indexed citations
12.
Hestmark, Geir, et al.. (2001). Population structure and size-dependent reproductive effort inUmbilicaria spodochroa. Mycologia. 93(3). 453–458. 19 indexed citations
13.
Hestmark, Geir. (2000). Temptations of the tree. Nature. 408(6815). 911–911. 13 indexed citations
14.
Rydgren, Knut, Geir Hestmark, & Rune Halvorsen Økland. (1998). Revegetation following experimental disturbance in a boreal old‐growth Picea abies forest. Journal of Vegetation Science. 9(6). 763–776. 95 indexed citations
15.
Hestmark, Geir. (1997). Competitive behaviour of umbilicate lichens - an experimental approach. Oecologia. 111(4). 523–528. 16 indexed citations
16.
Hestmark, Geir, et al.. (1997). Composition of seed banks of roadsides, stream verges and agricultural fields in southern Norway. Doria (University of Helsinki). 18 indexed citations
17.
Sletvold, Nina & Geir Hestmark. (1997). Thallus Growth Asymmetry and Habitat Inclination in Lasallia pustulata. The Bryologist. 100(4). 465–465. 2 indexed citations
18.
Kappen, L., B. Schroeter, Geir Hestmark, & Jana Barbro Winkler. (1996). Field Measurements of Photosynthesis of Umbilicarious Lichens in Winter. Botanica Acta. 109(4). 292–298. 34 indexed citations
19.
20.
Hestmark, Geir. (1991). Teleomorph-Anamorph Relationships in Umbilicaria II. Patterns in Propagative Morph Production. The Lichenologist. 23(4). 361–380. 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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