Teuvo Ahti

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Teuvo Tapio Ahti
Born1934
NationalityFinnish
Alma materUniversity of Helsinki
AwardsAcharius Medal[1]
Scientific career
FieldsLichenology
InstitutionsUniversity of Helsinki; Finnish Museum of Natural History
Author abbrev. (botany)Ahti[2]

Teuvo ("Ted") Tapio Ahti (born 1934) is a Finnish

lichenologist. He has had a long career at the University of Helsinki that started in 1963, and then following his retirement in 1997, at the Botanical Museum of the Finnish Museum of Natural History. Known as a specialist of the lichen family Cladoniaceae, Ahti has published more than 280 scientific publications. A Festschrift was dedicated to him in 1994, and in 2000 he was awarded the prestigious Acharius Medal
for lifetime contributions to lichenology.

Education and career

Ahti started developing an interest in botany at the age of 15, when he worked on a class project involving collecting 100 species of plants. His attention turned to lichens when a classmate who had worked for Veli Räsänen pointed them out during a birdwatching excursion in Helsinki. His interest was further fuelled when a couple of years later, he had to pass a test on identification of forest floor lichens and bryophytes as part of an application for work at the Finnish Forest Research Institute. He honed his identification skills during another summer job a few years later inventorying reindeer in Lapland.[3] In 1957, he was hired by the provincial Government of Newfoundland to undertake a study of caribou habitat. He collected 3500 specimens from nearly 80 localities across the province; these collections were later used as data in several floristic articles dealing with various lichen taxa.[4]

Ahti studied

Academy of Finland in 1991.[7] Since retiring in 1996, Ahti has been a research associate with the Finnish Museum of Natural History in Helsinki.[8]

Two of the species that Ahti has introduced as new to science include Parmelia hygrophila Goward & Ahti (top) and Cladonia terrae-nova Ahti (bottom)

Ahti was president of the

William Culberson called "the long-awaited fulfillment of an old promise by one of the world's master taxonomists." In the monograph, Ahti accepted 184 species of Cladoniaceae from the Neotropical realm, including 29 new taxa.[12] Ahti made the numerous publications of William Nylander generally accessible through a five-volume reprint edition.[6] He has also made the subject of botany and lichens more popular and accessible to the general public through his work with the Nordic Lichen Flora, a series of books describing all lichens found in Nordic countries.[5]

Teuvo Ahti is married to botanist

liverworts, and lichens.[8] In 1967, they collected 3000 specimens of vascular plants in Alaska, the Yukon, northern British Columbia, and Alberta.[11]

Recognition

A Festschrift was dedicated to Ahti in 1994 for his 60th birthday, titled Focus on Lichen Taxonomy and Biogeography: A Festschrift in Honour of Teuvo Ahti. This publication, part of the Acta Botanica Fennica series, contains 30 scientific papers written by 45 authors.[13] Ahti was awarded the Acharius Medal in 2000,[1] which is given for lifetime achievement in lichenology.[7] He is an honorary member of the Russian Botanical Society of the Russian Academy of Sciences.[6] In 2011, Ahti, along with co-authors Soili Stenroos [fi], Katileena Lohtander, and Leena Myllys, won the Tieto-Finlandia Award for their non-fiction work Suomen jäkäläopas ("Finnish lichen guide").[14]

Eponymy

Four genera and several species have been named to honour Ahti. These include:[6]

Parmelia ahtii Essl. (1977); Lecanora ahtii Vänskä (1986); Cladonia ahtii S.Stenroos (1989); Caloplaca ahtii Søchting (1994); Physma ahtianum Verdon & Elix (1994); Ramalina ahtii Kashiw. & T.H.Nash (1994); Stenocybe ahtii Titov & Baĭbul. (1994); Thelotrema ahtii Sipman (1994); Tuckneraria ahtii Randlane & Saag (1994); Unguiculariopsis ahtii D.Hawksw., D.J.Galloway & S.Y.Kondr. (1994); Hypotrachyna ahtiana Elix, T.H.Nash & Sipman (2009); Melanelixia ahtii S.D.Leav., Essl., Divakar, A.Crespo & Lumbsch (2016); Dactylospora ahtii Zhurb. & Pino-Bodas (2017); Neolamya ahtii Zhurb. (2017); Stigmidium ahtii Etayo & Palice (2017); Verrucaria ahtii Pykälä, Launis & Myllys (2017); and Halecania ahtii
Zhdanov (2020).

Selected publications

A complete listing of Ahti's scientific publications up to 2017 is given in Belyaeva and Chamberlain's tribute.[3] Some of his major works include:

  • Teuvo, Ahti (1959). "Studies on the caribou lichen stands of Newfoundland". Annales Botanici Fennici. 30 (4): 1–44.
  • Ahti, Teuvo; Hämet-Ahti, Leena; Jalas, Jaakko (1968). "Vegetation zones and their sections in northwestern Europe". Annales Botanici Fennici. 5 (3): 169–211.
    JSTOR 23724233
    .
  • Ahti, Teuvo; Oksanen, Jari (1990). "Epigeic lichen communities of taiga and tundra regions". Vegetatio. 86 (1): 39–70. .
  • Stenroos, Soili; Hyvonen, Jaakko; Myllys, Leena; Thell, Arne; Ahti, Teuvo (2002). "Phylogeny of the genus Cladonia s.lat. (Cladoniaceae, ascomycetes) inferred from molecular, morphological, and chemical data". Cladistics. 18 (3): 237–278.
    S2CID 221576450
    .
  • Stenroos, Soili; Pino-Bodas, Raquel; Hyvönen, Jaakko; .

References

  1. ^ a b "IAL - International Association for Lichenology". www.lichenology.org. Retrieved 17 December 2020.
  2. ^ "Ahti, Teuvo Tapio (1934–)". International Plant Names Index. Retrieved 28 July 2020.
  3. ^
    ISSN 2309-6500
    .
  4. ^ Goward, Trevor; Brodo, Irwin M.; Clayden, Stephen R. (1998). Rare Lichens of Canada. A Review and Provisional Listing (PDF) (Report). Committee on the Status of Endangered Wildlife in Canada. pp. 7–8.
  5. ^ a b Kärnefelt 2009, p. 287.
  6. ^ a b c d e Hertel, Hannes; Gärtner, Georg; Lőkös, László (2017). "Forscher an Österreichs Flechtenflora" [Investigators of Austria's lichen flora] (PDF). Stapfia (in German). 104 (2): 1–211 (see pp. 14–15).
  7. ^ a b Burgaz, Ana Rosa. "New Acharius medallists" (PDF). International Lichenological Newsletter. 34 (1): 1. Open access icon
  8. ^ a b Goward, Trevor. "Leenä Hämet-Ahti and Teuvo Ahti: A Wells Gray Honeymoon". Ways of Enlichenment. Retrieved 15 July 2020.
  9. ^ Väre 2017, p. 536.
  10. ^ Väre 2017, p. 531.
  11. ^ a b Väre 2017, p. 539.
  12. JSTOR 3244788
    .
  13. .
  14. ^ "Tietokirjallisuuden Finlandia". Suomen Kirjasäätiö (in Finnish). Retrieved 26 July 2020.
  15. .

Cited literature