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Sökning: AMNE:(NATURVETENSKAP Biologi) > Arup Ulf

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1.
  • Zamora, Juan Carlos, et al. (författare)
  • Considerations and consequences of allowing DNA sequence data as types of fungal taxa
  • 2018
  • Ingår i: IMA Fungus. - : INT MYCOLOGICAL ASSOC. - 2210-6340 .- 2210-6359. ; 9:1, s. 167-185
  • Tidskriftsartikel (refereegranskat)abstract
    • Nomenclatural type definitions are one of the most important concepts in biological nomenclature. Being physical objects that can be re-studied by other researchers, types permanently link taxonomy (an artificial agreement to classify biological diversity) with nomenclature (an artificial agreement to name biological diversity). Two proposals to amend the International Code of Nomenclature for algae, fungi, and plants (ICN), allowing DNA sequences alone (of any region and extent) to serve as types of taxon names for voucherless fungi (mainly putative taxa from environmental DNA sequences), have been submitted to be voted on at the 11th International Mycological Congress (Puerto Rico, July 2018). We consider various genetic processes affecting the distribution of alleles among taxa and find that alleles may not consistently and uniquely represent the species within which they are contained. Should the proposals be accepted, the meaning of nomenclatural types would change in a fundamental way from physical objects as sources of data to the data themselves. Such changes are conducive to irreproducible science, the potential typification on artefactual data, and massive creation of names with low information content, ultimately causing nomenclatural instability and unnecessary work for future researchers that would stall future explorations of fungal diversity. We conclude that the acceptance of DNA sequences alone as types of names of taxa, under the terms used in the current proposals, is unnecessary and would not solve the problem of naming putative taxa known only from DNA sequences in a scientifically defensible way. As an alternative, we highlight the use of formulas for naming putative taxa (candidate taxa) that do not require any modification of the ICN.
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2.
  • Søchting, Ulrik, et al. (författare)
  • Marchantiana asserigena comb. nov., a possible European immigrant from Australia
  • 2018
  • Ingår i: Graphis Scripta. - 0901-7593. ; 30:6, s. 115-120
  • Tidskriftsartikel (refereegranskat)abstract
    • Caloplaca asserigena is known to have a secondary compound different from other species of Teloschistaceae in the Northern Hemisphere. Studies of the secondary chemistry of the Australian Teloschistaceae have revealed the same compound to be present in Marchantiana michelagoensis and Caloplaca marchantiorum. Subsequent molecular studies based on three genes support the affinity of C. asserigena and M. michelagoensis. Accordingly, the species is tentatively included in the genus Marchantiana. Marchantiana asserigena, which was earlier regarded as extinct in Denmark, has been found to be widespread on very thin twigs of dwarf shrubs in Danish heathlands.
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3.
  • Arup, Ulf, et al. (författare)
  • Professor Ingvar Kärnfelt - a birthday tribute
  • 2009
  • Ingår i: The Lichenologist. - Cambridge : Cambridge University Press. - 0024-2829 .- 1096-1135. ; 41:5, s. 453-456
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • On 19 July 2009 Ingvar Kärnefelt celebrated his 65th birthday. This could have meant that we, his former students, would be celebrating him in his retirement from his position as head of the Biological Museums at Lund University. We are grateful that this is not the case, as Ingvar will carry on, probably for at least one or two more years. Instead, we celebrate Ingvar because he is the main reason for all of us having studied lichenology in Lund. This special issue of The Lichenologist is dedicated to him as a birthday tribute in honour of his long and fruitful lichenological career. The main authors of all the papers in this issue are former students of Ingvar. For several of us he has not only acted as supervisor but later also as the director of the Botanical Museum where we meet him in our daily work.
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6.
  • Kärnefelt, Ingvar, et al. (författare)
  • Two new species of Caloplaca (Teloschistaceae) from the southern hemisphere
  • 2002
  • Ingår i: Bryologist. - 1938-4378. ; 105:3, s. 301-309
  • Tidskriftsartikel (refereegranskat)abstract
    • Caloplaca gyalectoides S. Kondratyuk & Karnefelt from the Cape Province, South Africa, and Caloplaca chilensis S. Kondratyuk, Karnefelt, Froden & Arup with an associated parasymbiont Arthonia tetraspora S. Kondratyuk & Karnefelt occurring mainly along the coast in central Chile are described as new. Possible associated taxa are briefly discussed. Distribution maps are provided for all three species.
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7.
  • Lie, Marit H., et al. (författare)
  • The importance of host tree age, size and growth rate as determinants of epiphytic lichen diversity in boreal spruce forests
  • 2009
  • Ingår i: Biodiversity and Conservation. - : Springer Science and Business Media LLC. - 0960-3115 .- 1572-9710. ; 18:13, s. 3579-3596
  • Tidskriftsartikel (refereegranskat)abstract
    • The amount of large and old trees has decreased in the boreal forests during the last centuries of forestry. Such trees are important habitats for epiphytic lichens and there is a growing concern for lichen species that are associated with large and old trees. However, only little is known about the relative importance of tree size versus age as determinants of lichen diversity. Here we have determined the size, age and growth rate of 157 Norway spruce trees and recorded the occurrence of epiphytic lichen species on their branches and lower stems. The study includes crustose lichens and was done in two old-growth forests in SE Norway. Tree age and tree size were the parameters that explained the largest part of epiphytic lichen diversity. Only the growth rate of the most recent time period, i.e. 1984-2004, showed a statistically significant relationship to diversity. There was no indication of a stabilising species number with increasing tree age. Slow-growing and old trees were, however, mainly of importance to the lichen species growing on stems, and this set of species were in general adversely affected by a large amount of branches. The opposite was the case for the species that were confined to branches as their diversity increased when the amount of branches increased. Our study adds empirical data to support the importance of large and old trees as bearers of biodiversity in boreal forests. Site preservation and patch retention of groups of old and large trees is recommended as measures to maintain epiphytic lichen diversity.
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8.
  • Lumbsch, H. Thorsten, et al. (författare)
  • One hundred new species of lichenized fungi: a signature of undiscovered global diversity
  • 2011
  • Ingår i: Phytotaxa. - 1179-3163. ; 18, s. 1-127
  • Tidskriftsartikel (refereegranskat)abstract
    • The number of undescribed species of lichenized fungi has been estimated at roughly 10,000. Describing and cataloging these would take the existing number of taxonomists several decades; however, the support for taxonomy is in decline worldwide. In this paper we emphasize the dire need for taxonomic expertise in lichenology. We bring together 103 colleagues from institutions worldwide to describe a total of 100 new species of lichenized fungi, representing a wide taxonomic and geographic range. The newly described species are: Acarospora flavisparsa, A. janae, Aderkomyces thailandicus, Amandinea maritima, Ampliotrema cocosense, Anomomorpha lecanorina, A. tuberculata, Aspicilia mansourii, Bacidina sorediata, Badimia multiseptata, B. vezdana, Biatora epirotica, Buellia sulphurica, Bunodophoron pinnatum, Byssoloma spinulosum, Calopadia cinereopruinosa, C. editae, Caloplaca brownlieae, C. decipioides, C. digitaurea, C. magnussoniana, C. mereschkowskiana, C. yorkensis, Calvitimela uniseptata, Chapsa microspora, C. psoromica, C. rubropulveracea, C. thallotrema, Chiodecton pustuliferum, Cladonia mongkolsukii, Clypeopyrenis porinoides, Coccocarpia delicatula, Coenogonium flammeum, Cresponea ancistrosporelloides, Crocynia microphyllina, Dictyonema hernandezii, D. hirsutum, Diorygma microsporum, D. sticticum, Echinoplaca pernambucensis, E. schizidiifera, Eremithallus marusae, Everniastrum constictovexans, Fellhanera borbonica, Fibrillithecis sprucei, Fissurina astroisidiata, F. nigrolabiata, F. subcomparimuralis, Graphis caribica, G. cerradensis, G. itatiaiensis, G. marusa, Gyalideopsis chicaque, Gyrotrema papillatum, Harpidium gavilaniae, Hypogymnia amplexa, Hypotrachyna guatemalensis, H. indica, H. lueckingii, H. paracitrella, H. paraphyscioides, H. parasinuosa, Icmadophila eucalypti, Krogia microphylla, Lecanora mugambii, L. printzenii, L. xanthoplumosella, Lecidea lygommella, Lecidella greenii, Lempholemma corticola, Lepraria sekikaica, Lobariella sipmanii, Megalospora austropacifica, M. galapagoensis, Menegazzia endocrocea, Myriotrema endoflavescens, Ocellularia albobullata, O. vizcayensis, Ochrolechia insularis, Opegrapha viridipruinosa, Pannaria phyllidiata, Parmelia asiatica, Pertusaria conspersa, Phlyctis psoromica, Placopsis imshaugii, Platismatia wheeleri, Porina huainamdungensis, Ramalina hyrcana, R. stoffersii, Relicina colombiana, Rhizocarpon diploschistidina, Sticta venosa, Sagenidiopsis isidiata, Tapellaria albomarginata, Thelotrema fijiense, Tricharia nigriuncinata, Usnea galapagona, U. pallidocarpa, Verrucaria rhizicola, and Xanthomendoza rosmarieae. In addition, three new combinations are proposed: Fibrillithecis dehiscens, Lobariella botryoides, and Lobariella pallida.
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9.
  • McCune, Bruce, et al. (författare)
  • Biodiversity and ecology of lichens of Kenai Fjords National Park, Alaska
  • 2020
  • Ingår i: Plant and Fungal Systematics. - : W. Szafer Institute of Botany Polish Academy of Sciences. - 2544-7459. ; 65:2, s. 586-619
  • Tidskriftsartikel (refereegranskat)abstract
    • We inventoried lichens in Kenai Fjords National Park in Alaska, USA We assembledthe known information on occurrence and ecology of lichens in this park by combiningfield, herbarium, and literature studies. Our results provide baseline data on lichenoccurrence that may be used in resource condition assessments, vulnerability assessments, long-term ecological monitoring, and resource management. We report a total of 616 taxa of lichenized fungi from the Park, plus an additional five subspecies and three varieties, all of which are new additions to the National Park Service database for this park unit. An additional five species of nonlichenized lichenicolous fungi are reported here. Eight non-lichenized fungi that are traditionally treated with lichens are also included, most of these associated with bark of particular host species. Four taxa new to North America are reported here (Arctomia delicatula var. acutior, Aspicilia dudinensis, Myriospora myochroa, and Ochrolechia bahusiensis), along with 44 species new to Alaska. Numerous species have been confirmed using ITS barcoding sequences. Also several records assigned to the genus level are reported, many of those are likely new species.
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10.
  • Thor, Göran, et al. (författare)
  • Blylav återfunnen i Padjelanta nationalpark efter 79 år
  • 2021
  • Ingår i: Fauna och Flora: populär tidskrift för biologi. - 0014-8903. ; 116:2, s. 14-17
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Padjelanta nationalpark har en exceptionellt artrik och fort­ farande till stor del okänd lavflora inklusive många sällsynta eller rödlistade arter. Lavforskaren Gunnar Degelius hittade 1941 den rödlistade blylaven på ett klippblock vid fjället Unna Duvgge på sydvästra stranden av Virihaure vilket är den nordligaste lokalen för arten i Sverige. Sommaren 2020 återfann vi blylaven efter 79 långa år, med stor sannolikhet på samma stenblock men totalt fanns det bara 18 cm2.
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