Geir Hestmark

Image of Geir Hestmark
Norwegian version of this page
Room 3301
Username
Visiting address Blindernveien 31 0371 Oslo
Postal address Postboks 1066 Blindern 0316 Oslo

For more detail see my web page at the Department of Biosciences.

Publications

  • Hestmark, Geir (2021). Proposal to conserve the name Umbilicaria spodochroa (lichenized Ascomycota) with a conserved type and with that spelling. Taxon. ISSN 0040-0262. 70(5), p. 1131–1132. doi: 10.1002/tax.12578. Full text in Research Archive
  • Hestmark, Geir (2018). Jens Esmarks mountain-glacier traverse 1823 - the key to his discovery of ice ages. Boreas. ISSN 0300-9483. 47(1), p. 1–10. doi: 10.1111/bor.12260. Full text in Research Archive
  • Hestmark, Geir (2017). Tracings of the north of Europe: Robert Chambers in search of the Ice Age. Annals of Science. ISSN 0003-3790. 74(4), p. 262–281. doi: 10.1080/00033790.2017.1390154.
  • Hestmark, Geir (2017). Lectotypification of Umbilicaria leiocarpa (Umbilicariaceae). Graphis Scripta. ISSN 0901-7593. 29(1-2), p. 12–17. doi: 10.1017/s0024282914000589.
  • Hestmark, Geir (2017). Lectotypification of Umbilicaria torrefacta (Lightf.) Schrad. The Lichenologist. ISSN 0024-2829. 49(2), p. 167–169. doi: 10.1017/S0024282916000682.
  • Hestmark, Geir & Nordli, Øyvind (2016). Jens Esmark’s Christiania (Oslo) meteorological observations 1816-1838: the first long term continuous temperature record from the Norwegian capital homogenized and analysed . Climate of the Past. ISSN 1814-9324. 12(11), p. 2087–2106. doi: 10.5194/cp-12-2087-2016. Full text in Research Archive
  • Hestmark, Geir (2016). The lichen genus Umbilicaria in Ecuador. Nordic Journal of Botany (NJB). ISSN 0107-055X. 34(3), p. 257–268. doi: 10.1111/njb.00952.
  • Hestmark, Geir; Lutzoni, Francois & Miadlikowska, Jolanta (2016). Photobiont associations in co-occurring umbilicate lichens with contrasting modes of reproduction in coastal Norway. The Lichenologist. ISSN 0024-2829. 48(5), p. 545–557. doi: 10.1017/S0024282916000232.
  • Nordli, Øyvind; Hestmark, Geir; Benestad, Rasmus & Isaksen, K. (2015). The Oslo temperature series 1837-2012: Homogeneity testing and temperature analysis. International Journal of Climatology. ISSN 0899-8418. 35(12), p. 3486–3504. doi: 10.1002/joc.4223.
  • Hestmark, Geir (2015). Umbilicaria aprina New to the Pyrenees. Graphis Scripta. ISSN 0901-7593. 27(1-2), p. 42–45.
  • Hestmark, Geir (2015). Lectotypification of Umbilicaria virginis (Umbilicariaceae). The Lichenologist. ISSN 0024-2829. 47(1), p. 77–81. doi: 10.1017/S0024282914000589.
  • Hestmark, Geir (2014). Lectotypification of the name Umbilicaria nylanderiana (Umbilicariaceae). Taxon. ISSN 0040-0262. 63(4), p. 914–917. doi: 10.12705/634.12.
  • Miadlikowska, Jolanta; Kauff, Frank; Högnabba, Filip; Oliver, Jeffrey C.; Molnar, Katalin & Fraker, Emily [Show all 32 contributors for this article] (2014). A multigene phylogenetic synthesis for the class Lecanoromycetes (Ascomycota): 1307 fungi representing 1139 infrageneric taxa, 317 genera and 66 families. Molecular Phylogenetics and Evolution. ISSN 1055-7903. 79(1), p. 132–168. doi: 10.1016/j.ympev.2014.04.003.
  • Hestmark, Geir (2012). To discover, yes, but to publish...? Jens Esmark, datolite...and thulite. Bergverksmuseets skriftserie. ISSN 0800-1855. 49, p. 45–52.
  • Hestmark, Geir (2012). The meaning of 'metamorphic' - Charles & Mary Lyell in Norway, 1837. Norsk Geologisk Tidsskrift. ISSN 0029-196X. 91(4), p. 247–275.
  • Hestmark, Geir (2011). Vitenskap og dannelse. In Astad, Anne-Marie (Eds.), Årbok 2010. Novus Forlag. ISSN 978-82-7099-646-9. p. 211–232.
  • Hestmark, Geir; Miadlikowska, Jolanta; Kauff, Frank; Fraker, Emily; Molnar, Katalin & Lutzoni, Francois (2011). Single origin and subsequent diversification of central Andean endemic Umbilicaria species. Mycologia. ISSN 0027-5514. 103(1), p. 45–56. doi: 10.3852/10-012.
  • Hestmark, Geir (2011). The meaning of 'metamorphic' - Charles & Mary Lyell in Norway, 1837. Norsk Geologisk Tidsskrift. ISSN 0029-196X. 91(4), p. 247–275.
  • Jettestuen, Espen; Nermoen, Anders; Hestmark, Geir; Timdal, Einar & Mathiesen, Joachim (2010). Competition on the Rocks: Community Growth and Tessellation. PLOS ONE. ISSN 1932-6203. 5(9). doi: 10.1371/journal.pone.0012820. Full text in Research Archive
  • Hestmark, Geir (2010). Typification of the Andean taxa of Umbilicaria described by William Nylander. Mycotaxon. ISSN 0093-4666. 111, p. 51–63.
  • Hestmark, Geir (2009). "Her ligger Sneen evig". Da Dovre falt - for Esmarks barometer" ("Here the snow lies eternal" - Jens Esmark's measurement of Snohetta). Historisk Tidsskrift (Norge). ISSN 0018-263X. 88(2), p. 231–249.
  • Hestmark, Geir (2009). New observations and records for Umbilicaria (Umbilicariaceae) in Bolivia. The Bryologist. ISSN 0007-2745. 112(4), p. 833–838.
  • Sundquist, B; Haapala, I; Hansen, JM; Hestmark, Geir & Steinthorssons, S (2008). History of geology in Norden. Episodes. ISSN 0705-3797. 31.
  • Hestmark, Geir (2008). "A primitive country of rocks and people" - R.I. Murchison's Silurian compaign in Norway, 1844. Norsk Geologisk Tidsskrift. ISSN 0029-196X. 88, p. 117–141.
  • Hibbett, DS; Binder, M; Bischoff, JF; Blackwell, M; Cannon, PF & Eriksson, OE [Show all 67 contributors for this article] (2007). A higher-level phylogenetic classification of the Fungi. Mycological Research. ISSN 0953-7562. 111, p. 509–547. doi: 10.1016/j.mycres.2007.03.004.
  • Hestmark, Geir; Skogesal, Olav & Skullerud, Øystein (2007). Early recruitment equals long-term relative abundance in an alpine saxicolous lichen guild. Mycologia. ISSN 0027-5514. 99(2), p. 207–214.
  • Hestmark, Geir (2007). Typification of Umbilicaria cinereorufescens. Mycotaxon. ISSN 0093-4666. 100, p. 235–240.
  • Gregersen, Inger Katharina; Hegseth, Marit Nøst; Hestmark, Geir; Kongsbak, Ruth Helene & Moe, Therese Fosholt (2006). The relationship between thallus mass, surface area and apothecium production in Umbilicaria rigida. Nova Hedwigia: Zeitschrift für Kryptogamenkunde. ISSN 0029-5035. 82.
  • Hestmark, Geir (2005). Michael Sars. In Arntzen, Jon Gunnar (Eds.), Bergensere i tusen år. Fra Olav Kyrre til Sissel Kyrkjebø. Kunnskapsforlaget. p. 157–158.
  • Hestmark, Geir; Skogesal, Olav & Skullerud, Øystein (2005). Growth, population density and population structure of Cetraria nivalis during 240 years of primary colonization. The Lichenologist. ISSN 0024-2829. 37, p. 535–541.
  • Rydgren, Knut; Økland, Rune H. & Hestmark, Geir (2004). Disturbance severity and community resilience in a borealforest. Ecology. ISSN 0012-9658. 85, p. 1906–1915.
  • Hestmark, Geir (2004). Kartleggerne. In Drivenes, E.A. & Jølle, Harald Dag (Ed.), Norsk Polarhistorie, II "Vitenskapene". Gyldendal Akademisk. ISSN 82-05-32656-8. p. 6–103, 493-504.
  • Rydgren, K.; Økland, Rune Halvorsen & Hestmark, Geir (2004). Disturbance severity and community resilience in a boreal forest. Ecology. ISSN 0012-9658. 85, p. 1906–1915.
  • Hestmark, Geir; Skogesal, Olav & Skullerud, Øystein (2004). Growth in the alpine saxicolous lichens Allantoparmelia alpicola and Melanelia stygia. Nova Hedwigia: Zeitschrift für Kryptogamenkunde. ISSN 0029-5035. 78(3-4), p. 301–309. doi: 10.1127/0029-5035/2004/0078-03.
  • Hestmark, Geir; Skogesal, Olav & Skullerud, Øystein (2004). Growth, reproduction, and population structure in four alpine lichens during 240 years of primary colonization. Canadian Journal of Botany. ISSN 0008-4026. 82, p. 1356–1362. doi: 10.1139/B04-068.
  • Hestmark, Geir (2003). Narrating the Arctic - A cultural history of Nordic scientific practices. Historisk Tidsskrift (Norge). ISSN 0018-263X. 82, p. 307–310.
  • Hestmark, Geir (2002). Materialisme - fosfor til ettertanke, Vitenskapens utfordringer, 1850 - 1920 (= Norsk idéhistorie bind IV). Aschehoug & Co. ISSN 8203224849. p. 70–125.
  • Hestmark, Geir (2002). Darwinisme - optimisme eller pessimisme? Vitenskapens utfordringer, 1850 - 1920 (= Norsk idéhistorie bind IV). Aschehoug & Co. ISSN 8203224849. p. 126–155.
  • Hestmark, Geir (2002). Nytten og nytelsen - positivisme, Vitenskapens utfordringer, 1850 - 1920 (= Norsk idéhistorie bind IV). Aschehoug & Co. ISSN 8203224849. p. 156–183.
  • Hestmark, Geir (2002). Norsk natur - beskrivelse, bruk, bevaring, Vitenskapens utfordringer, 1850 - 1920 (= Norsk idéhistorie bind IV). Aschehoug & Co. ISSN 8203224849. p. 272–291.
  • Hestmark, Geir (2002). Det målbare menneske, Vitenskapens utfordringer, 1850 - 1920 (= Norsk idéhistorie bind IV). Aschehoug & Co. ISSN 8203224849. p. 330–355.
  • Hestmark, Geir (2002). Rett og samfunn, Vitenskapens utfordringer, 1850 - 1920 (= Norsk idéhistorie bind IV). Aschehoug & Co. ISSN 8203224849. p. 418–444.
  • Hestmark, Geir; Rasmussen, Tarald & Bliksrud, Liv (2002). Posisjoner i det moderne, Vitenskapens utfordringer, 1850 - 1920 (= Norsk idéhistorie bind IV). Aschehoug & Co. ISSN 8203224849. p. 9–22.
  • Ramstad, Stine & Hestmark, Geir (2001). Population structure and size-dependent reproductive effort in Umbilicaria spodochroa. Mycologia. ISSN 0027-5514. 93, p. 453–458.
  • Hestmark, Geir (2001). Fridtjof Nansens Fond til Videnskabens Fremme - Grunnleggelsen. Fridtjof Nansen Minneforelesning År 2000. Årbok / Det norske videnskaps-akademi. ISSN 0332-6209.
  • Ramstad, Stine & Hestmark, Geir (2000). Effective neighbourhoods for a saxicolous lichen. Mycological Research. ISSN 0953-7562. 104, p. 198–204.
  • Hestmark, Geir (2000). The ecophysiology of lichen population ecology. Bibliotheca Lichenologica. ISSN 1436-1698. 75, p. 397–404.
  • Hestmark, Geir (2000). Oeconomia Naturae L. Millennium Essay. Nature. ISSN 0028-0836. 405, p. 19–19.
  • Hestmark, Geir (2000). Temptations of the tree. Millennium Essay. Nature. ISSN 0028-0836. 408, p. 911–911.
  • Czeczuga, B.; Kilias, H.; Lumbsch, T. & Hestmark, Geir (2000). Carotenoids in the thalli of lichen species from central Europe. Journal of the Hattori Botanical Laboratory. ISSN 0073-0912. 89, p. 299–311.
  • Sletvold, Nina & Hestmark, Geir (1999). A comparative test of the predictive power of neighbourhood models in natural populations of Lasallia pustulata. Canadian Journal of Botany. ISSN 0008-4026. 77, p. 1655–1661.

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  • Hestmark, Geir (2020). Lykkeskipet Bergensfjord. Verdenskrig og etterkrigsår 1939-1959. Kagge Forlag AS. ISBN 978-82-489-2619-1. 588 p.
  • Hestmark, Geir (2018). Hva er ØKOLOGI. Universitetsforlaget. ISBN 978-82-15-02796-8. 156 p.
  • Hestmark, Geir (2017). Istidens Oppdager. Jens Esmark, pioneren i Norges fjellverden. Kagge Forlag AS. ISBN 978-82-489-2027-4. 720 p.
  • Hestmark, Geir (2011). Fridtjof Nansen og arktisk geologi. Det Norske Videnskaps-Akademi. ISBN 978-82-7099-647-6. 30 p.
  • Hestmark, Geir (2011). Fridtjof Nansen Minneforelesninger 50 år. Novus Forlag. ISBN 978-82-7099-647-6. 13 p.
  • Hestmark, Geir (2004). Umbilicaria. In Nash, TH, Ryan, BD, Gries, C, Diederich, P. & Bungartz, F. eds.: Lichen Flora of the Greater Sonoran Desert Region. Vol 2. pp. 548-556. University of Arizona. 9 p.
  • Bliksrud, Liv; Hestmark, Geir & Rasmussen, Tarald (2002). Vitenskapens utfordringer, 1850 - 1920 (= Norsk idéhistorie bind IV). Aschehoug & Co. ISBN 8203224849. 478 p.
  • Hestmark, Geir (1999). Vitenskap og Nasjon. Waldemar Christopher Brøgger 1851-1905. Aschehoug & Co. ISBN 82-03-22391-5. 890 p.

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  • Hestmark, Geir (2021). Siste livbåt fra et synkende Europa. Avisa Vårt land.
  • Hestmark, Geir (2019). On the altitudes of von Humboldt. Proceedings of the National Academy of Sciences of the United States of America. ISSN 0027-8424. 116(26), p. 12599–12600. doi: 10.1073/pnas.1907936116.
  • Hestmark, Geir (2017). Oppdagelsen av istiden. Aftenposten Historie. ISSN 1894-5775. 2017(9), p. 81–85.
  • Hestmark, Geir; Øyvind, Nordli; Benestad, Rasmus & Isaksen, Ketil (2015). Formidabel temperaturauke. Aftenposten (morgenutg. : trykt utg.). ISSN 0804-3116.
  • Hestmark, Geir (2014). Review of T. Krüger: The Discovery of Ice Ages (2013. Isis. ISSN 0021-1753. 105(2), p. 416–417.
  • Hestmark, Geir (2014). Christian Frederiks siste erindring om Norge. Geo. ISSN 1500-8371. 17(3), p. 10–11.
  • Hestmark, Geir (2014). Charles Lyells norske lærebokeksempel. Geo. ISSN 1500-8371. 17(7), p. 72–72.
  • Hestmark, Geir (2013). Oppdagelsen av fjellet.
  • Hestmark, Geir (2013). Comment to lecture On learning from history by Qvigstad, Norges Bank. Norges banks skriftserie. ISSN 0802-7188. 46, p. 57–59.
  • Hestmark, Geir; Miadlikowska, Jolanta; Kauff, Frank; Fraker, Emily; Molnar, Katalin & Lutzoni, Francois (2011). Erratum. Mycologia. ISSN 0027-5514. 103(2), p. 442–443. doi: 10.3852/103.2.442.
  • Hestmark, Geir (2011). Hvem oppdaget larvikitten? Forskningsnytt fra 1700-tallet. Geo. ISSN 1500-8371. 14(7), p. 32–35.
  • Hestmark, Geir (2011). Naturens tankelæser. En biografi om Hans Christian Ørsted. Historisk Tidsskrift (Norge). ISSN 0018-263X. 90(2), p. 279–282.
  • Hestmark, Geir (2010). Vitenskap og dannelse.
  • Hestmark, Geir (2010). Jens Esmark's Paths to the Ice Age.
  • Hestmark, Geir (2010). Jens Esmark som klimaforsker.
  • Hestmark, Geir (2009). Hva en forsker trenger. Aftenposten (morgenutg. : trykt utg.). ISSN 0804-3116.
  • Hestmark, Geir (2009). Michael Sars - Store norske leksikon, snl.no., Geir Hestmark, 2009-03-23, http:///www.snl.no/.nbl_biografi/Michael_Sars/utdypning. Aschehougs og Gyldendals Store Norske Leksikon.
  • Hestmark, Geir (2009). Georg Ossian Sars - Store norske leksikon, snl.no, Geir Hestmark, 2009-03-23, http://www.snl.no/.nbl_biografi/G_O_Sars/utdypning. Aschehougs og Gyldendals Store Norske Leksikon.
  • Hestmark, Geir (2009). Iacob D. Sømme - Store norske leksikon, snl.no, Geir Hestmark, 2009-03-23, http://www.snl.no/.nbl_biografi/Iacob_D_S%C3%B8mme/utdypning. Aschehougs og Gyldendals Store Norske Leksikon.
  • Hestmark, Geir (2009). Sem Sæland - Store norske leksikon, snl.no, Geir Hestmark, 2009-03-23, http://www.snl.no/.nbl_biografi/Sem_S%C3%A6land/utdypning. Aschehougs og Gyldendals Store Norske Leksikon.
  • Hestmark, Geir (2009). Da Dovre falt. (GEO365.no. Nettavisen for geomiljøet - www.geoaktuelt/forskning/dadovrefalt/). Geo. ISSN 1500-8371.
  • Hestmark, Geir (2009). Da Dovre falt. Geo. ISSN 1500-8371. 12(4), p. 16–17.
  • Hestmark, Geir (2009). Sula-konglomeratet - fra fossilparadis til istidsbevis. Geo. ISSN 1500-8371. 12(8), p. 32–35.
  • Hestmark, Geir (2009). Sula-konglomeratet. GEO365.no Nettavisen for geomiljøet. http://www.geo365.no/forskning/sula/ 07.12.2009. Geo. ISSN 1500-8371.
  • Hestmark, Geir (2009). Missing links - hvor viktige er de? (www.forskning.no/artikler/2009/mai/221059). [Internet]. forskning.no.
  • Hestmark, Geir (2008). Et (fiktivt) intervju med lektor Theodor Kjerulf i anledning opprettelsen av en geologisk undersøkelse. Geo. ISSN 1500-8371. 11(1), p. 50–52.
  • Hestmark, Geir (2007). Innavl ved Universitetet. (Kronikk 23 april 2007). Aftenposten (morgenutg. : trykt utg.). ISSN 0804-3116.
  • Hestmark, Geir (2005). Sæland, Sem. In Arntzen, Jon Gunnar (Eds.), Norsk biografisk leksikon: Sundt-Wikborg. Kunnskapsforlaget. ISSN 82-573-1011-5. p. 64–65.
  • Hestmark, Geir (2005). Sømme, Iacob. In Arntzen, Jon Gunnar (Eds.), Norsk biografisk leksikon: Sundt-Wikborg. Kunnskapsforlaget. ISSN 82-573-1011-5. p. 77–78.
  • Hestmark, Geir & NRK , TV1 (2005). Tre menn og et glansbilde. [TV]. NRK.
  • Hestmark, Geir (2005). Agent og nasjonsbygger s.24-27. [Newspaper]. Dagsavisen.
  • Hestmark, Geir (2004). Sars, Georg Ossian. In Arntzen, Jon Gunnar (Eds.), Norsk biografisk leksikon: Sand-Sundquist. Kunnskapsforlaget. ISSN 82-573-0734-3. p. 47–49.
  • Hestmark, Geir (2004). Sars, Michael. In Arntzen, Jon Gunnar (Eds.), Norsk biografisk leksikon: Sand-Sundquist. Kunnskapsforlaget. ISSN 82-573-0734-3. p. 49–50.
  • Hestmark, Geir (2003). Da materialismen kom til Norge. [Radio]. P2.
  • Hestmark, Geir (2001). Ernst Haeckel i Bergen, 1869. Bergens Tidende. ISSN 0804-8983.
  • Hestmark, Geir (2001). Frans Emil Wielgolaski - 70 år. Blyttia : Norsk botanisk forenings tidsskrift. ISSN 0006-5269. 59, p. 138–142.
  • Hestmark, Geir (2000). Umbilicaria aprina Nyl. -- an extreme lichen. Norwegian fungus of the month. IMC7 - Web. pages, Dept. of Biology, UiO. p. 1–14.
  • Hestmark, Geir (2000). Program om Sonja Kovalevski. [Radio]. NRK-P2.
  • Hestmark, Geir (2000). Verdt å vite - Om W.C.Brøgger. [Radio]. NRK-P2.
  • Hestmark, Geir (1999). Om sosialdarwinismen. [Radio]. NRK P2.
  • Hestmark, Geir (1999). Similarity on the rocks - competition and coexistence in a coastal cliff community.

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Published Mar. 17, 2014 2:47 PM - Last modified Mar. 9, 2016 10:28 AM