A5003489172- Lichen and fungal ecology
- Botany and Plant Ecology Studies
- Mycorrhizal Fungi and Plant Interactions
- Bryophyte Studies and Records
- Plant Pathogens and Fungal Diseases
- Botany, Ecology, and Taxonomy Studies
- Yeasts and Rust Fungi Studies
- Forest Ecology and Biodiversity Studies
- Diatoms and Algae Research
- Geology and Paleoclimatology Research
- Plant and Fungal Species Descriptions
- Marine and coastal plant biology
- Microbial Community Ecology and Physiology
- Plant Ecology and Soil Science
- Mediterranean and Iberian flora and fauna
- Botanical Research and Chemistry
- Species Distribution and Climate Change
- Archaeology and Natural History
- Infectious Diseases and Mycology
- Marine Biology and Ecology Research
- Polar Research and Ecology
- Ethnobotanical and Medicinal Plants Studies
- Tree-ring climate responses
- Peatlands and Wetlands Ecology
- Linguistics and language evolution
University of Bergen
2014-2024
Advanced Neural Dynamics (United States)
2024
Norwegian Institute for Nature Research
2018
Michigan State University
2015
American Museum of Natural History
2009
Humboldt State University
2006
New York Botanical Garden
2006
Oregon State University
1999-2001
Royal Norwegian Society of Sciences and Letters
1984
Vitensenteret i Trondheim
1984
Abstract 128 species in 45 genera of sorediate and isidiate, crustose, corticolous lichens are recorded from Norway. Accounts their morphology, chemistry, substratum preferences presented, a discussion distribution Norway is supported by maps for number taxa. With few exceptions, the taxa can be distinguished on thallus characters alone. Several taxa, especially those with brown or blue-pigmented soralia, have soredia distinct cortex. New are: Buellia arborea Coppins & Tønsb. (from...
The lichen flora of southeast Alaska has been explored for over 100 years, but remains poorly known. In the first survey its kind from region, we report 766 taxa lichens and lichenicolous fungi Klondike Gold Rush National Historic Park. Coming a park only 53 km2 in size, this represents one largest numbers lichenized per unit area ever reported number any United States Park size. One genus, four species fungus are described as new to science: Steineropsis alaskana gen. et sp. nov....
Lichens are widely acknowledged to be a key component of high latitude ecosystems. However, the time investment needed for full inventories and lack taxonomic identification resources crustose lichen lichenicolous fungal diversity have hampered efforts fully gauge depth species richness in these Using combination classical field inventory extensive deployment chemical molecular analysis, we assessed lichens associated fungi Glacier Bay National Park, Alaska (USA), mixed landscape coastal...
Abstract Population structure and history is poorly known in most lichenized ascomycetes. Many species display large‐scale infraspecific disjunctions, which have been explained alternately by range fragmentation of high age widespread long‐distance dispersal. Using the lichen Cavernularia hultenii , widely disjunct across North America Europe, Pleistocene Holocene population was inferred. The internal transcribed spacer (ITS) part intergenic (IGS) region nuclear ribosomal DNA were sequenced...
Abstract Lichens are the archetypal symbiosis and one for which term was coined. Although application of shotgun sequencing techniques has shown that many lichen symbioses can harbour more symbionts than canonically recognized fungus photobiont, no global census organismal composition been undertaken. Here, we analyze genome content 437 metagenomes from six continents, show four bacterial lineages occur in majority symbioses, at a frequency on par with algal photobionts. A single genus,...
The lichen flora of Svalbard 742 species, including 151 reported for the first time, are treated from (exclusive Bjørnøya). New to science are: Bryocaulon hyperborea Øvstedal (also known Greenland), Buellia insularis Øvstedal, Lepraria svalbardensis Tønsberg, Placynthium pulvinatum recorded mainland Norway), Rhizocarpon dahlii R. tephromelae and Tephromela lucifuga & Tønsberg. combinations Aspicilia major (Lynge) punctiformis Cetraria racemosa Miriquidica picea Stereocaulon compactum (I....
Abstract Rinodina is a widespread, polyphyletic genus of crustose Physciaceae with c . 300 species worldwide. A major missing link in understanding its global biogeography has been eastern Asia where the never systematically revised. Here we review specimen and literature records for north-eastern (Russian Far East, Japan Korean Peninsula) recognize 43 species. We describe two species, R. hypobadia orientalis , as new to science. distinguished by pigmented hypothecium, Dirinaria -type...
Green and blue–green phycotype pairs formed by the lichens Nephroma arcticum (L.) Torss., Peltigera aphthosa Willd., P. britannica (Gyelnik) Holt.–Hartw. & Tønsb. comb. nov. Lobaria amplissima (Scop.) Forss. are reported, their possible occurrence in venosa Baumg. is considered. A of reported for first time. The taxonomy, chemistry distribution group Norway discussed.
• Premise of the study: Thallus architecture has long been a powerful guide for classifying lichens and often trumped photobiont association ascomatal type, but reliability these characters to predict phylogenetic affinity seldom tested. The cyanolichen genus Polychidium unites species that have strikingly similar gross morphology consort with different genera. If were found be monophyletic, switching among closely related would suggested. If, however, arise in lineages, convergent body plan...
Abstract On request from The Directorate for Nature Management (DN), Trondheim, a revised red list Norwegian macrolichens is presented. present supersedes the preliminary published by Direktoratet naturforvaltning (1992) and includes 69 species of currently known c. 430 in Norway. compiling mainly based on studies relevant herbarium material all major Fennoscandian herbaria believed to be rare or endangered Norway field work carried out localities 1992—1994. Of 1938 threatened Norway, 1046...
Recent surveys of the inland rain forests British Columbia and adjacent regions have brought to light an unexpectedly rich epiphytic lichen flora, including several species apparently new science. In first a series papers, we describe eight discovered during these as new: Absconditella amabilis T. Sprib. (Ostropales), Bacidina contecta S. Ekman & Sprib., Biatora aureolepra Tønsberg, ligni-mollis Printzen (all Lecanorales), Collema coniophilum Goward (Peltigerales), Pertusaria diluta C....
In lichen research, metagenomes are increasingly being used for evaluating symbiont composition and metabolic potential, but the overall content limitations of these have not been assessed. We reassembled over 400 publicly available metagenomes, generated metagenome-assembled genomes (MAGs), constructed phylogenomic trees, mapped MAG occurrence frequency across data set. Ninety-seven percent 1,000 recovered MAGs were bacterial or fungal that provides most cellular mass. Our mapping detailed...
Biatora printzenii sp. nov. is described from eastern North America. Cheiromycina flabelliformis, Chrysothrix chrysophthalma, Opegrapha corticola, and Rinodina flavosoralifera are reported new to The report in Bryologist 99: 196 (1996) of Fuscidea lightfootii as America was based on misidentifications.
Abstract The genus Rinodina ( Physciaceae ), with approximately 300 species, has been subject to few phylogenetic studies. Consequently taxonomic hypotheses in are largely reliant on phenotypic data, while incorporating DNA dependent methods remain be tested. Here we investigate degeliana / R. subparieta and the mniaraea group, which previously have not subjected comprehensive molecular We conducted detailed morphological, anatomical, chemical, species delimitation studies including 24 newly...
Lecanora stainislai is characterized by a very thin sorediate thallus, forming more or less continuous layer of soredia and the production usnic acid zeorin. It usually grows on smooth bark trees in forests known from Czech Republic, Norway, Poland, Russia, Ukraine western North America (Canada, USA). chemically similar to L. compallens, which however has an episubstratal thallus non-sorediate parts often delimited soralia. They have also different phylogenetic positions within symmicta...
Dillman, K. L., Ahti, T., Björk, C. R., Clerc, P., Ekman, S., Goward, Hafellner, J., Pérez- Ortega, Printzen, C., Savić, Schultz, M., Svensson, Thor, G., Tønsberg, Vitikainen, O., Westberg, M. & Spribille, T. 2012. New records, range extensions and nomenclatural innovations for lichens lichenicolous fungi from Alaska, U.S.A. — Herzogia 25: 177–210.Surveys of have been taking place in the U.S. state Alaska more than 160 years, but until now assessing full extent their diversity has hampered...
Three lichen species forming both a foliose chlorotype and dendriscocauloid cyanotype are documented from western North America. Lobaria amplissima is reported northern California southeastern Alaska new to Sticta oroborealis Goward & Tønsberg, sp. nov. described small area in north coastal British Columbia. The of wrightii, hitherto unknown, Alaska. cyanotypes all these occur primarily as epiphytes old-growth forests supporting high cyanolichen diversity. occurrence “Dendriscocaulon”...
Abstract A taxonomic and biogeographic overview of the genus Myrionora is provided. Two species are recognized, M. albidula (Willey) R. C. Harris pseudocyphellariae (Etayo) S. Ekman & Palice comb. nov. The characterized by polysporous asci, presence crystals in hymenium proper exciple that partly consist lobaric acid, a photobiont with large cells (mostly range 12–20 µm). currently known from Germany, Norway, Sweden, Russian Federation (Altayskiy Kray, Chelyabinskaya Oblast',...
Abstract A new isidiate, xanthone-producing species, Rinodina chrysidiata , is described and compared in detail with R. xanthophaea a species which it co-occurs eastern Asia. The two have an identical chemistry but are clearly separated by their differing lichenized diaspores, thallus morphology ascospore type.