Håvard Kauserud

• Estensmo, Eva Lena F.; Morgado, Luis; Maurice, Sundy; Martin Sanchez, Pedro Maria; Engh, Ingeborg B. & Mattsson, Johan [Vis alle 8 forfattere av denne artikkelen] (2021). Spatiotemporal variation of the indoor mycobiome in daycare centers. Microbiome. ISSN 2049-2618. 9(1), s. 1–12. doi: 10.1186/s40168-021-01167-x.
• Birkemoe, Tone; Nybakken, Line; Andelic, Martine; Tangnæs, Mina-Johanne; Sverdrup-Thygeson, Anne & Kauserud, Håvard [Vis alle 7 forfattere av denne artikkelen] (2021). Secondary metabolites and nutrients explain fungal community composition in aspen wood. Fungal ecology. ISSN 1754-5048. doi: 10.1016/j.funeco.2021.101115.
• Tonjer, Lea-Rebekka; Thoen, Ella; Morgado, Luis N.; Botnen, Synnøve; Mundra, Sunil & Nybakken, Line [Vis alle 8 forfattere av denne artikkelen] (2021). Fungal community dynamics across a forest–alpine ecotone. Molecular Ecology. ISSN 0962-1083. 30(19), s. 4926–4938. doi: 10.1111/mec.16095.
• Danielsen, Jørgen Skyrud; Morgado, Luis; Mundra, Sunil; Nybakken, Line; Davey, Marie Louise & Kauserud, Håvard (2021). Establishment of spruce plantations in native birch forests reduces soil fungal diversity. FEMS Microbiology Ecology. ISSN 0168-6496. 97(7). doi: 10.1093/femsec/fiab074.
• Skrede, Inger; Murat, Claude; Hess, Jaqueline; Maurice, Sundy Ursula Mary Jane; Sønstebø, Jørn Henrik & Kohler, Annegret [Vis alle 11 forfattere av denne artikkelen] (2021). Contrasting demographic histories revealed in two invasive populations of the dry rot fungus Serpula lacrymans. Molecular Ecology. ISSN 0962-1083. 30(12), s. 2772–2789. doi: 10.1111/mec.15934. Fulltekst i vitenarkiv Vis sammendrag

  Globalization and international trade have impacted organisms around the world leading to a considerable number of species establishing in new geographic areas. Many organisms have taken advantage of human-made environments, including buildings. One such species is the dry rot fungus Serpula lacrymans, which is the most aggressive wood-decay fungus in indoor environments in temperate regions. Using population genomic analyses of 36 full genome sequenced isolates, we demonstrated that European and Japanese isolates are highly divergent and the populations split 3000–19,000 generations ago, probably predating human influence. Approximately 250 generations ago, the European population went through a tight bottleneck, probably corresponding to the fungus colonization of the built environment in Europe. The demographic history of these populations, probably lead to low adaptive potential. Only two loci under selection were identified using a Fst outlier approach, and selective sweep analyses identified three loci with extended haplotype homozygosity. The selective sweep analyses found signals in genes possibly related to decay of various substrates in Japan and in genes involved DNA replication and protein modification in Europe. Our results suggest that the dry rot fungus independently established in indoor environments in Europe and Japan and that invasive species can potentially establish large populations in new habitats based on a few colonizing individuals.

• Straumfors, Anne; Mundra, Sunil; Foss, Oda Astrid Haarr; Mollerup, Steen Kristen & Kauserud, Håvard (2021). The airborne mycobiome and associations with mycotoxins and inflammatory markers in the Norwegian grain industry. Scientific Reports. ISSN 2045-2322. 11. doi: 10.1038/s41598-021-88252-1. Vis sammendrag

  Grain dust exposure is associated with respiratory symptoms among grain industry workers. However, the fungal assemblage that contribute to airborne grain dust has been poorly studied. We characterized the airborne fungal diversity at industrial grain- and animal feed mills, and identified differences in diversity, taxonomic compositions and community structural patterns between seasons and climatic zones. The fungal communities displayed strong variation between seasons and climatic zones, with 46% and 21% of OTUs shared between different seasons and climatic zones, respectively. The highest species richness was observed in the humid continental climate of the southeastern Norway, followed by the continental subarctic climate of the eastern inland with dryer, short summers and snowy winters, and the central coastal Norway with short growth season and lower temperature. The richness did not vary between seasons. The fungal diversity correlated with some specific mycotoxins in settled dust and with fibrinogen in the blood of exposed workers, but not with the personal exposure measurements of dust, glucans or spore counts. The study contributes to a better understanding of fungal exposures in the grain and animal feed industry. The differences in diversity suggest that the potential health effects of fungal inhalation may also be different.

• Mundra, Sunil; Kjønaas, O. Janne; Morgado, Luis; Krabberød, Anders Kristian; Ransedokken, Yngvild & Kauserud, Håvard (2021). Soil depth matters: shift in composition and inter-kingdom co-occurrence patterns of microorganisms in forest soils. FEMS Microbiology Ecology. ISSN 0168-6496. 97(3). doi: 10.1093/femsec/fiab022. Fulltekst i vitenarkiv Vis sammendrag

  Soil depth represents a strong physiochemical gradient that greatly affects soil-dwelling microorganisms. Fungal communities are typically structured by soil depth, but how other microorganisms are structured is less known. Here, we tested whether depth-dependent variation in soil chemistry affects the distribution and co-occurrence patterns of soil microbial communities. This was investigated by DNA metabarcoding in conjunction with network analyses of bacteria, fungi, as well as other micro-eukaryotes, sampled in four different soil depths in Norwegian birch forests. Strong compositional turnover in microbial assemblages with soil depth was detected for all organismal groups. Significantly greater microbial diversity and fungal biomass appeared in the nutrient-rich organic layer, with sharp decrease towards the less nutrient-rich mineral zones. The proportions of copiotrophic bacteria, Arthropoda and Apicomplexa were markedly higher in the organic layer, while patterns were opposite for oligotrophic bacteria, Cercozoa, Ascomycota and ectomycorrhizal fungi. Network analyses indicated more intensive inter-kingdom co-occurrence patterns in the upper mineral layer (0–5 cm) compared to the above organic and the lower mineral soil, signifying substantial influence of soil depth on biotic interactions. This study supports the view that different microbial groups are adapted to different forest soil strata, with varying level of interactions along the depth gradient.

• Estensmo, Eva Lena Fjeld; Maurice, Sundy Ursula Mary Jane; Morgado, LN; Martin-Sanchez, Pedro Maria; Skrede, Inger & Kauserud, Håvard (2021). The influence of intraspecific sequence variation during DNA metabarcoding: A case study of eleven fungal species. Molecular Ecology Resources. ISSN 1755-098X. doi: 10.1111/1755-0998.13329. Vis sammendrag

  DNA metabarcoding has become a powerful approach for analysing complex communities from environmental samples, but there are still methodological challenges limiting its full potential. While conserved DNA markers, like 16S and 18S, often are not able to discriminate among closely related species, other more variable markers – like the fungal ITS region, may include considerable intraspecific variation, which can lead to oversplitting of species during DNA metabarcoding analyses. Here we assessed the effects of intraspecific sequence variation in DNA metabarcoding by analysing local populations of eleven fungal species. We investigated the allelic diversity of ITS2 haplotypes using both Sanger sequencing and high throughput sequencing (HTS) coupled with error correction with the software dada2. All the eleven species, except one, included some level of intraspecific variation in the ITS2 region. Overall, we observed a high correspondence between haplotypes generated by Sanger sequencing and HTS, with the exception of a few additional haplotypes detected using either approach. These extra haplotypes, typically occurring in low frequencies, were probably due to PCR and sequencing errors or intragenomic variation in the rDNA region. The presence of intraspecific (and possibly intragenomic) variation in ITS2 suggest that haplotypes (or ASVs) should not be used as basic units in ITS‐based fungal community analyses, but an extra clustering step is needed to approach species‐level resolution.

• Martin-Sanchez, Pedro Maria; Estensmo, Eva Lena Fjeld; Morgado, LN; Maurice, Sundy Ursula Mary Jane; Engh, Ingeborg Bjorvand & Skrede, Inger [Vis alle 7 forfattere av denne artikkelen] (2021). Analyzing indoor mycobiomes through a large‐scale citizen science study in Norway. Molecular Ecology. ISSN 0962-1083. doi: 10.1111/mec.15916. Vis sammendrag

  In the built environment, fungi can cause important deterioration of building materials and adverse health effects on occupants. Increased knowledge about indoor mycobiomes from different regions of the world, and their main environmental determinants, will enable improved indoor air quality management and identification of health risks. This is the first citizen science study about indoor mycobiomes at a large geographical scale in Europe, including 271 houses from Norway and 807 dust samples from three house compartments: outside of the building, living room and bathroom. The fungal community composition determined by DNA metabarcoding was clearly different between indoor and outdoor samples, but there were no significant differences between the two indoor compartments. The 32 selected variables, related to the outdoor environment, building features and occupant characteristics, accounted for 15% of the overall variation in community composition, with the house compartment as the key factor (7.6%). Next, the climate was the main driver of the dust mycobiomes (4.2%), while building and occupant variables had significant but minor influences (1.4% and 1.1%, respectively). The house‐dust mycobiomes were dominated by ascomycetes (⁓70%) with Capnodiales and Eurotiales as the most abundant orders. Compared to the outdoor samples, the indoor mycobiomes showed higher species richness, which is probably due to the mixture of fungi from outdoor and indoor sources. The main indoor indicator fungi belonged to two ecological groups with allergenic potential: xerophilic molds and skin‐associated yeasts. Our results suggest that citizen science is a successful approach for unraveling the built microbiome at large geographical scales.

• Põlme, Sergei; Abarenkov, Kessy; Nilsson, R. Henrik; Lindahl, Björn D.; Clemmensen, Karina E. & Kauserud, Håvard [Vis alle 74 forfattere av denne artikkelen] (2021). FungalTraits: a user‑friendly traits database of fungi and fungus‑like stramenopiles. Fungal diversity. ISSN 1560-2745. doi: 10.1007/s13225-020-00466-2. Fulltekst i vitenarkiv
• Maurice, Sundy Ursula Mary Jane; Arnault, Gontran; Arnault, Gontran; Nordén, Jenni; Botnen, Synnøve Smebye & Miettinen, Otto [Vis alle 7 forfattere av denne artikkelen] (2021). Fungal sporocarps house diverse and host-specific communities of fungicolous fungi. The ISME Journal. ISSN 1751-7362. 15, s. 1445–1457. doi: 10.1038/s41396-020-00862-1. Fulltekst i vitenarkiv
• Seierstad, Kristian S.; Fossdal, Renate Myking; Miettinen, Otto; Carlsen, Tor; Skrede, Inger & Kauserud, Håvard (2020). Contrasting genetic structuring in the closely related basidiomycetes Trichaptum abietinum and Trichaptum fuscoviolaceum (Hymenochaetales). Fungal Biology. ISSN 1878-6146. 125(4), s. 269–275. doi: 10.1016/j.funbio.2020.11.001. Fulltekst i vitenarkiv
• Thomsen, Iben M.; Kauserud, Håvard; Krokene, Paal; Nicolaisen, Mogens; Wendell, Per Hans Micael & Alsanius, Beatrix [Vis alle 10 forfattere av denne artikkelen] (2020). Risk assessment of six commercial mycorrhizal products. Scientific Opinion of the Panel on Plant Health of the Norwegian Scientific Committee for Food and Environment. VKM Report. ISSN 2535-4019. 2020(9), s. 1–55. Fulltekst i vitenarkiv
• Jenssen, Andreas Langeland; Kauserud, Håvard & Maurice, Sundy Ursula Mary Jane (2020). High phenotypic variability in the wood decay fungus Phellopilus nigrolimitatus. Fungal ecology. ISSN 1754-5048. s. 1–9. doi: 10.1016/j.funeco.2020.100982.
• Thoen, Ella; Harder, Christoffer Bugge; Kauserud, Håvard; Botnen, Synnøve Smebye; Vik, Unni & Taylor, Andy F.S. [Vis alle 8 forfattere av denne artikkelen] (2020). In vitro evidence of root colonization suggests ecological versatility in the genus Mycena. New Phytologist. ISSN 0028-646X. 227, s. 601–612. doi: 10.1111/nph.16545. Fulltekst i vitenarkiv
• Botnen, Synnøve Smebye; Thoen, Ella; Eidesen, Pernille Bronken; Krabberød, Anders Kristian & Kauserud, Håvard (2020). Community composition of arctic root-associated fungi mirrors host plant phylogeny. FEMS Microbiology Ecology. ISSN 0168-6496. 96. doi: 10.1093/femsec/fiaa185. Fulltekst i vitenarkiv
• Botnen, Synnøve Smebye; Mundra, Sunil; Kauserud, Håvard & Eidesen, Pernille Bronken (2020). Glacier retreat in the High Arctic: Opportunity or threat for ectomycorrhizal diversity? FEMS Microbiology Ecology. ISSN 0168-6496. 96(12). doi: 10.1093/femsec/fiaa171. Fulltekst i vitenarkiv
• Diez, Jeffrey; Kauserud, Håvard; Andrew, Carrie; Heegaard, Einar; Krisai-Greilhuber, Irmgard & Senn-Irlet, Beatrice [Vis alle 9 forfattere av denne artikkelen] (2020). Altitudinal upwards shifts in fungal fruiting in the Alps. Proceedings of the Royal Society of London. Biological Sciences. ISSN 0962-8452. 287, s. 1–6. doi: 10.1098/rspb.2019.2348. Fulltekst i vitenarkiv
• Straumfors, Anne; Foss, Oda Astrid Haarr; Fuss, Janina; Mollerup, Steen Kristen; Kauserud, Håvard & Mundra, Sunil (2019). The inhalable mycobiome of sawmill workers: Exposure characterization and diversity. Applied and Environmental Microbiology. ISSN 0099-2240. 85(21), s. 1–17. doi: 10.1128/AEM.01448-19. Vis sammendrag

  Exposure to fungal spores has been associated with respiratory symptoms and allergic alveolitis among sawmill workers, but the complexity of sawmill workers' fungal exposure has been poorly studied. We characterized the fungal diversity in air samples from sawmill workers' breathing zone, and identified differences in richness, diversity and taxonomic composition between companies, departments, wood types and seasons. Full-shift personal inhalable dust samples (n=86) collected from 11 industrial saw-, sorting-, and planer mill companies processing spruce and/or pine were subjected to DNA metabarcoding using the fungal Internal Transcribed Spacer (ITS) region 2. The workers were exposed to a higher total number of operational taxonomic units (OTUs) in summer compared to winter, and when processing spruce compared with pine. Workers in the saw department had the richest fungal exposure followed by workers in the planing department and sorting of dry timber department. Sawmills explained 11% of the variation in fungal community composition of the exposure, followed by season (5%) and departments (3%). The fungal composition of the exposure differed between season, sawmills, wood types and departments also at the taxonomic levels, from phylum to species level. The differences in exposure diversity suggests that potential health effects of fungal inhalation also may be different, hence a risk assessment based on the fungal diversity differences should be performed. This study may serve as a basis towards establishing a fungal profile of signature species that are specific for sawmills and can be measured quantitatively in future risk assessments of sawmill workers.

• Aas, Anders Bjørnsgard; Andrew, Carrie Joy; Blaalid, Rakel; Vik, Unni; Kauserud, Håvard & Davey, Marie Louise (2019). Fine-scale diversity patterns in belowground microbial communities are consistent across kingdoms. FEMS Microbiology Ecology. ISSN 0168-6496. 95(6), s. 1–11. doi: 10.1093/femsec/fiz058.
• Thoen, Ella; Aas, Anders Bjørnsgard; Vik, Unni; Brysting, Anne Krag; Skrede, Inger & Carlsen, Tor [Vis alle 7 forfattere av denne artikkelen] (2019). A single ectomycorrhizal plant root system includes a diverse and spatially structured fungal community. Mycorrhiza. ISSN 0940-6360. 29(3), s. 167–180. doi: 10.1007/s00572-019-00889-z. Fulltekst i vitenarkiv
• Krah, Franz-Sebastian; Büntgen, Ulf; Schaefer, Hanno; Müller, Jörg; Andrew, Carrie & Boddy, Lynne [Vis alle 25 forfattere av denne artikkelen] (2019). European mushroom assemblages are darker in cold climates. Nature Communications. ISSN 2041-1723. 10:2890, s. 1–11. doi: 10.1038/s41467-019-10767-z. Fulltekst i vitenarkiv Vis sammendrag

  Thermal melanism theory states that dark-colored ectotherm organisms are at an advantage at low temperature due to increased warming. This theory is generally supported for ectotherm animals, however, the function of colors in the fungal kingdom is largely unknown. Here, we test whether the color lightness of mushroom assemblages is related to climate using a dataset of 3.2 million observations of 3,054 species across Europe. Consistent with the thermal melanism theory, mushroom assemblages are significantly darker in areas with cold climates. We further show differences in color phenotype between fungal lifestyles and a lifestyle differentiated response to seasonality. These results indicate a more complex ecological role of mushroom colors and suggest functions beyond thermal adaption. Because fungi play a crucial role in terrestrial carbon and nutrient cycles, understanding the links between the thermal environment, functional coloration and species’ geographical distributions will be critical in predicting ecosystem responses to global warming.

• Botnen, Synnøve Smebye; Davey, Marie Louise; Aas, Anders Bjørnsgard; Carlsen, Tor; Thoen, Ella & Heegaard, Einar [Vis alle 12 forfattere av denne artikkelen] (2019). Biogeography of plant root-associated fungal communities in the North Atlantic region mirrors climatic variability. Journal of Biogeography. ISSN 0305-0270. 46(7), s. 1532–1546. doi: 10.1111/jbi.13613.
• Andrew, Carrie Joy; Büntgen, Ulf; Egli, Simon; Senn-Irlet, Beatrice; Grytnes, John-Arvid & Heilmann-Clausen, Jacob [Vis alle 15 forfattere av denne artikkelen] (2019). Open-source data reveal how collections-based fungal diversity is sensitive to global change. Applications in Plant Sciences. ISSN 2168-0450. 7(3), s. 1–19. doi: 10.1002/aps3.1227. Fulltekst i vitenarkiv
• Asplund, Johan; Kauserud, Håvard; Ohlson, Mikael & Nybakken, Line (2019). Spruce and beech as local determinants of forest fungal community structure in litter, humus and mineral soil. FEMS Microbiology Ecology. ISSN 0168-6496. 95(2). doi: 10.1093/femsec/fiy232.
• Andrew, Carrie; Diez, Jeffrey; James, Timothy Y. & Kauserud, Håvard (2019). Fungarium specimens: a largely untapped source in global change biology and beyond. Philosophical Transactions of the Royal Society of London. Biological Sciences. ISSN 0962-8436. 374(1763), s. 1–11. doi: 10.1098/rstb.2017.0392.
• Khomich, Maryia; Cox, Filipa; Andrew, Carrie Joy; Andersen, Tom; Kauserud, Håvard & Davey, Marie Louise (2018). Coming up short: Identifying substrate and geographic biases in fungal sequence databases. Fungal ecology. ISSN 1754-5048. 36, s. 75–80. doi: 10.1016/j.funeco.2018.08.002. Fulltekst i vitenarkiv Vis sammendrag

  Insufficient reference database coverage is a widely recognized limitation of molecular ecology ap-proaches which are reliant on database matches for assignment of function or identity. Here, we use datafrom 65 amplicon high-throughput sequencing (HTS) datasets targeting the internal transcribed spacer(ITS) region of fungal rDNA to identify substrates and geographic areas whose underrepresentation in theavailable reference databases could have meaningful impact on our ability to draw ecological conclu-sions. A total of 14 different substrates were investigated. Database representation was particularly poorfor the fungal communities found in aquatic (freshwater and marine) and soil ecosystems. Aquaticecosystems are identified as priority targets for the recovery of novel fungal lineages. A subset of the datarepresenting soil samples with global distribution were used to identify geographic locations andterrestrial biomes with poor database representation. Database coverage was especially poor in tropical,subtropical, and Antarctic latitudes, and the Amazon, Southeast Asia, Australasia, and the Indian sub-continent are identified as priority areas for improving database coverage in fungi.

• Botnen, Synnøve Smebye; Davey, Marie Louise; Halvorsen, Rune & Kauserud, Håvard (2018). Sequence clustering threshold has little effect on the recovery of microbial community structure. Molecular Ecology Resources. ISSN 1755-098X. 18(5), s. 1064–1076. doi: 10.1111/1755-0998.12894. Fulltekst i vitenarkiv
• Andrew, Carrie Joy; Halvorsen, Rune; Heegaard, Einar; Kuyper, Thomas W.; Heilmann-Clausen, Jacob & Krisai-Greilhuber, Irmgard [Vis alle 15 forfattere av denne artikkelen] (2018). Continental-scale macrofungal assemblage patterns correlate with climate, soil carbon and nitrogen deposition. Journal of Biogeography. ISSN 0305-0270. 45(8), s. 1942–1953. doi: 10.1111/jbi.13374. Vis sammendrag

  Aim:Macroecological scales of species compositional trends are well documentedfor a variety of plant and animal groups, but remain sparse for fungi, despite theirecological importance in carbon and nutrient cycling. It is, thus, essential to under-stand the composition of fungal assemblages across broad geographical scales andthe underlying drivers. Our overall aim was to describe these patterns for fungiacross two nutritional modes (saprotrophic and ectomycorrhizal). Furthermore, weaimed to elucidate the temporal component of fruiting patterns and to relate theseto soil carbon and nitrogen deposition. Location:Central and Northern Europe.Methods:A total of 4.9 million fungal fruit body observations throughout Europe,collected between 1970 and 2010, were analysed to determine the two main envi-ronmental and geographical gradients structuring fungal assemblages for two mainnutritional modes, saprotrophic and ectomycorrhizal fungi. Results:Two main gradients explaining the geography of compositional patternswere identified, for each nutritional mode. Mean annual temperature (and relatedcollinear, seasonal measures) correlated most strongly with the first gradient forboth nutritional modes. Soil organic carbon was the highest correlate of the second compositional gradient for ectomycorrhizal fungi, suspected as an indicator of vege-tation- and pH-related covariates. In contrast, nitrogen deposition constituted asecond gradient for saprotrophic fungi, likely a proxy for anthropogenic pollution.Compositional gradients and environmental conditions correlated similarly whenthe data were divided into two time intervals of 1970–1990 and 1991–2010.Evidence of compositional temporal change was highest with increasing elevationand latitude. Main conclusions:Fungal assemblage patterns demonstrate clear biogeographicalpatterns that relate the nutritional modes to their main environmental correlates oftemperature, soil organic carbon and nitrogen deposition. With respect to globalchange impacts, the highest rates of compositional change by time suggest targetinghigher latitudes and elevations for a better understanding of fungal dynamics. We,finally, suggest further examination of the ranges and dispersal abilities of fungi tobetter assess responses to global change.

• Jacobsen, Rannveig Margrete; Sverdrup-Thygeson, Anne; Kauserud, Håvard; Mundra, Sunil & Birkemoe, Tone (2018). Exclusion of invertebrates influences saprotrophic fungal community and wood decay rate in an experimental field study. Functional Ecology. ISSN 0269-8463. 32(11), s. 2571–2582. doi: 10.1111/1365-2435.13196. Fulltekst i vitenarkiv Vis sammendrag

  1. Decomposer communities perform an essential ecosystem function by recycling nutrients. However, the effect of higher trophic levels on microbial decomposer communities and rate of decomposition is poorly understood. We therefore conducted an exclusion experiment to test the effect of invertebrates on fungal decomposer communities in dead wood, repeated at 30 sites in two landscapes, and measured wood density to assess effect on decay rate. 2. Invertebrates were excluded from recently cut logs by cages with a 1‐mm‐mesh net, and fungal communities in caged logs were compared to logs accessible to invertebrates by DNA metabarcoding analyses. Accessible logs included control logs, cage control logs and positive control logs. 3. We found that exclusion of invertebrates had a significant effect on fungal community composition. For example, the wood decay fungi Trametes versicolor and T. ochracea were significantly more abundant in accessible logs than in caged logs. The strongest effect on fungal community composition, however, was attributed to differing baseline conditions in the individual trees. When accounting for these baseline differences, caged logs had significantly higher wood density than control logs after 2 years, indicating lower rates of wood decay in caged logs. 4. Further studies, spanning several years, are required to fully understand the influence of invertebrates on fungi and wood decay. However, our results indicate that invertebrates influence both the composition of saprotrophic communities in dead wood and their decomposition function, which is vital to forest ecosystems. community assembly, dead wood, decomposition, DNA, high‐throughput sequencing, insects, saproxylic, top‐down

• Gange, Alan C.; Heegaard, Einar; Boddy, Lynne; Andrew, Carrie Joy; Kirk, Paul M. & Halvorsen, Rune [Vis alle 13 forfattere av denne artikkelen] (2018). Trait-dependent distributional shifts in fruiting of common British fungi. Ecography. ISSN 0906-7590. 41(1), s. 51–61. doi: 10.1111/ecog.03233. Fulltekst i vitenarkiv Vis sammendrag

  Despite the dramatic phenological responses of fungal fruiting to recent climate warming, it is unknown whether spatial distributions of fungi have changed and to what extent such changes are influenced by fungal traits, such as ectomycorrhizal (ECM) or saprotrophic lifestyles, spore characteristics, or fruit body size. Our overall aim was to understand how climate and fungal traits determine whether and how species‐specific fungal fruit body abundances have shifted across latitudes over time, using the UK national database of fruiting records. The data employed were recorded over 45 yr (1970–2014), and include 853 278 records of Agaricales, Boletales and Russulales, though we focus only on the most common species (with more than 3000 records each). The georeferenced observations were analysed by a Bayesian inference as a Gaussian additive model with a specification following a joint species distribution model. We used an offset, random contributions and fixed effects to isolate different potential biases from the trait‐specific interactions with latitude/climate and time. Our main aim was assessed by examination of the three‐way‐interaction of trait, predictor (latitude or climate) and time. The results show a strong trait‐specific shift in latitudinal abundance through time, as ECM species have become more abundant relative to saprotrophic species in the north. Along precipitation gradients, phenology was important, in that species with shorter fruiting seasons have declined markedly in abundance in oceanic regions, whereas species with longer seasons have become relatively more common overall. These changes in fruit body distributions are correlated with temperature and rainfall, which act directly on both saprotrophic and ECM fungi, and also indirectly on ECM fungi, through altered photosynthate allocation from their hosts. If these distributional changes reflect fungal activity, there will be important consequences for the responses of forest ecosystems to changing climate, through effects on primary production and nutrient cycling.

• Andrew, Carrie Joy; Heegaard, Einar; Gange, Alan C.; Senn-Irlet, Beatrice; Egli, Simon & Kirk, Paul M. [Vis alle 9 forfattere av denne artikkelen] (2018). Congruency in fungal phenology patterns across dataset sources and scales. Fungal ecology. ISSN 1754-5048. 32, s. 9–17. doi: 10.1016/j.funeco.2017.11.009.
• Andrew, Carrie Joy; Heegaard, Einar; Høiland, Klaus; Senn-Irlet, Beatrice; Kuyper, Thomas W. & Krisai-Greilhuber, Irmgard [Vis alle 14 forfattere av denne artikkelen] (2018). Explaining European fungal fruiting phenology with climate variability. Ecology. ISSN 0012-9658. 99(6), s. 1306–1315. doi: 10.1002/ecy.2237. Fulltekst i vitenarkiv Vis sammendrag

  Here we assess the impact of geographically dependent (latitude, longitude, and altitude) changes in bioclimatic (temperature, precipitation, and primary productivity) variability on fungal fruiting phenology across Europe. Two main nutritional guilds of fungi, saprotrophic and ectomycorrhizal, were further separated into spring and autumn fruiters. We used a path analysis to investigate how biogeographic patterns in fungal fruiting phenology coincided with seasonal changes in climate and primary production. Across central to northern Europe, mean fruiting varied by approximately 25 d, primarily with latitude. Altitude affected fruiting by up to 30 d, with spring delays and autumnal accelerations. Fruiting was as much explained by the effects of bioclimatic variability as by their large‐scale spatial patterns. Temperature drove fruiting of autumnal ectomycorrhizal and saprotrophic groups as well as spring saprotrophic groups, while primary production and precipitation were major drivers for spring‐fruiting ectomycorrhizal fungi. Species‐specific phenology predictors were not stable, instead deviating from the overall mean. There is significant likelihood that further climatic change, especially in temperature, will impact fungal phenology patterns at large spatial scales. The ecological implications are diverse, potentially affecting food webs (asynchrony), nutrient cycling and the timing of nutrient availability in ecosystems.

• Jacobsen, Rannveig Margrete; Sverdrup-Thygeson, Anne; Kauserud, Håvard & Birkemoe, Tone (2018). Revealing hidden insect–fungus interactions; moderately specialized, modular and anti-nested detritivore networks. Proceedings of the Royal Society of London. Biological Sciences. ISSN 0962-8452. 285. doi: 10.1098/rspb.2017.2833. Fulltekst i vitenarkiv Vis sammendrag

  Ecological networks are composed of interacting communities that influence ecosystem structure and function. Fungi are the driving force for ecosystem processes such as decomposition and carbon sequestration in terrestrial habitats, and are strongly influenced by interactions with invertebrates. Yet, interactions in detritivore communities have rarely been considered froma network perspective. In the present study, we analyse the interaction networks between three functional guilds of fungi and insects sampled from dead wood. Using DNA metabarcoding to identify fungi, we reveal a diversity of interactions differing in specificity in the detritivore networks, involving three guilds of fungi. Plant pathogenic fungi were relatively unspecialized in their interactions with insects inhabiting dead wood, while interactions between the insects and wood-decay fungi exhibited the highest degree of specialization, which was similar to estimates for animal-mediated seed dispersal networks in previous studies. The low degree of specialization for insect symbiont fungi was unexpected. In general, the pooled insect–fungus networks were significantly more specialized, more modular and less nested than randomized networks. Thus, the detritivore networks had an unusual anti-nested structure. Future studies might corroborate whether this is a common aspect of networks based on interactions with fungi, possibly owing to their often intense competition for substrate.

• Balasundaram, Sudhagar; Hess, Jaqueline; Durling, Mikael Brandström; Moody, Suzy C.; Thorbek, Birgitte Lisbeth Graae & Progida, Cinzia [Vis alle 15 forfattere av denne artikkelen] (2018). The fungus that came in from the cold: dry rot’s pre-adapted ability to invade buildings. The ISME Journal. ISSN 1751-7362. 12(3), s. 791–801. doi: 10.1038/s41396-017-0006-8.
• Asplund, Johan; Kauserud, Håvard; Bokhorst, Stef; Lie, Marit Helene; Ohlson, Mikael & Nybakken, Line (2018). Fungal communities influence decomposition rates of plant litter from two dominant tree species. Fungal ecology. ISSN 1754-5048. 32, s. 1–8. doi: 10.1016/j.funeco.2017.11.003.
• Dunthorn, Micah; Kauserud, Håvard; Bass, David; Mayor, Jordan & Mahé, Frédéric (2017). Yeasts dominate soil fungal communities in three lowland Neotropical rainforests. Environmental Microbiology Reports. ISSN 1758-2229. 9(5), s. 668–675. doi: 10.1111/1758-2229.12575.
• Aas, Anders Bjørnsgard; Davey, Marie Louise & Kauserud, Håvard (2017). ITS all right mama: investigating the formation of chimeric sequences in the ITS2 region by DNA metabarcoding analyses of fungal mock communities of different complexities. Molecular Ecology Resources. ISSN 1755-098X. 17(4), s. 730–741. doi: 10.1111/1755-0998.12622.
• Khomich, Maryia; Kauserud, Håvard; Logares, Ramiro; Rasconi, Serena & Andersen, Tom (2017). Planktonic protistan communities in lakes along a large-scale environmental gradient. FEMS Microbiology Ecology. ISSN 0168-6496. 93(4). doi: 10.1093/femsec/fiw231. Fulltekst i vitenarkiv
• Lorberau, Kelsey; Botnen, Synnøve Smebye; Mundra, Sunil; Aas, Anders Bjørnsgard; Rozema, Jelte & Eidesen, Pernille Bronken [Vis alle 7 forfattere av denne artikkelen] (2017). Does warming by open-top chambers induce change in the root-associated fungal community of the arctic dwarf shrub Cassiope tetragona (Ericaceae)? Mycorrhiza. ISSN 0940-6360. 27(5), s. 513–524. doi: 10.1007/s00572-017-0767-y.
• Khomich, Maryia; Davey, Marie Louise; Kauserud, Håvard; Rasconi, Serena & Andersen, Tom (2017). Fungal communities in Scandinavian lakes along a longitudinal gradient. Fungal ecology. ISSN 1754-5048. 27, s. 36–46. doi: 10.1016/j.funeco.2017.01.008. Fulltekst i vitenarkiv
• Jacobsen, Rannveig M; Kauserud, Håvard; Sverdrup-Thygeson, Anne; Bjorbækmo, Marit Markussen & Birkemoe, Tone (2017). Wood-inhabiting insects can function as targeted vectors for decomposer fungi. Fungal ecology. ISSN 1754-5048. 29, s. 76–84. doi: 10.1016/j.funeco.2017.06.006.
• Grube, Martin; Gaya, Ester; Kauserud, Håvard; Smith, Adrian M.; Avery, Simon V. & Fernstad, Sara F. [Vis alle 11 forfattere av denne artikkelen] (2017). The next generation fungal diversity researcher. Fungal Biology Reviews. ISSN 1749-4613. 31(3), s. 124–130. doi: 10.1016/j.fbr.2017.02.001. Fulltekst i vitenarkiv Vis sammendrag

  Fungi are more important to our lives than is assumed by the general public. They can comprise both devastating pathogens and plant-associated mutualists in nature, and several species have also become important workhorses of biotechnology. Fungal diversity research has in a short time transcended from a low-tech research area to a methodintensive high-tech discipline. With the advent of the new genomic and post-genomic methodologies, large quantities of new fungal data are currently becoming available each year. Whilst these new data and methodologies may help modern fungal diversity researchers to explore and discover the yet hidden diversity within a context of biological processes and organismal diversity, they need to be reconciled with the traditional approaches. Such a synthesis is actually difficult to accomplish given the current discouraging situation of fungal biology education, especially in the areas of biodiversity and taxonomic research. The number of fungal diversity researchers and taxonomists in academic institutions is decreasing, as are opportunities for mycological education in international curricula. How can we educate and stimulate students to pursue a career in fungal diversity research and taxonomy and avoid the situation whereby only those few institutions with strong financial support are able to conduct excellent research? Our short answer is that we need a combination of increased specialization and increased collaboration, i.e. that scientists with specialized expertise (e.g., in data generation, compilation, interpretation, and communication) consistently work together to generate and delivernew fungal knowledge in a more integrative manner e closing the gap between both traditional and modern approaches and academic and non-academic environments. Here we discuss how this perspective could be implemented in the training of the ‘next generation fungal diversity researcher’.

• Andrew, Carrie Joy; Heegaard, Einar; Kirk, Paul M.; Bässler, Claus; Heilmann-Clausen, Jacob & Krisai-Greilhuber, Irmgard [Vis alle 18 forfattere av denne artikkelen] (2017). Big data integration: Pan-European fungal species observations' assembly for addressing contemporary questions in ecology and global change biology. Fungal Biology Reviews. ISSN 1749-4613. 31(2), s. 88–98. doi: 10.1016/j.fbr.2017.01.001. Vis sammendrag

  Species occurrence observations are increasingly available for scientific analyses through citizen science projects and digitization of museum records, representing a largely untapped ecological resource. When combined with open-source data, there is unparalleled potential for understanding many aspects of the ecology and biogeography of organisms. Here we describe the process of assembling a pan-European mycological meta-database (ClimFun) and integrating it with open-source data to advance the fields of macroecology and biogeography against a backdrop of global change. Initially 7.3 million unique fungal species fruit body records, spanning nine countries, were processed and assembled into 6 million records of more than 10,000 species. This is an extraordinary amount of fungal data to address macro-ecological questions. We provide two examples of fungal species with different life histories, one ectomycorrhizal and one wood decaying, to demonstrate how such continental-scale meta-databases can offer unique insights into climate change effects on fungal phenology and fruiting patterns in recent decades. Keywords Biogeography; Citizen science; Fungi; Global change; Meta-database; Open-source

• Davey, Marie Louise; Skogen, Marte; Heegaard, Einar; Halvorsen, Rune; Kauserud, Håvard & Ohlson, Mikael (2017). Host and tissue variations overshadow the response of boreal moss-associated fungal communities to increased nitrogen load. Molecular Ecology. ISSN 0962-1083. 26(2), s. 571–588. doi: 10.1111/mec.13938. Vis sammendrag

  Human activity has more than doubled the amount of nitrogen entering the global nitrogen cycle, and the boreal forest biome is a nitrogen-limited ecosystem sensitive to nitrogen load perturbation. Although bryophyte-associated microbes contribute significantly to boreal forest ecosystem function, particularly in carbon and nitrogen cycling, little is known about their responses to anthropogenic global change. Amplicon pyrosequencing of the ITS2 region of rDNA was used to investigate how fungal communities associated with three bryophyte species responded to increased nitrogen loads in a long-term fertilization experiment in a boreal Picea abies forest in southern Norway. Overall, OTU richness, community composition and the relative abundance of specific ecological guilds were primarily influenced by host species identity and tissue type. Although not the primary factor affecting fungal communities, nitrogen addition did impact the abundance of specific guilds of fungi and the resulting overall community composition. Increased nitrogen loads decreased ectomycorrhizal abundance, with Amphinema, Cortinarius, Russula and Tylospora OTUs responding negatively to fertilization. Pathogen abundance increased with fertilization, particularly in the moss pathogen Eocronartium. Saprophytic fungi were both positively and negatively impacted by the nitrogen addition, indicating a complex community level response. The overshadowing of the effects of increased nitrogen loads by variation related to host and tissue type highlights the complexity of bryophyte-associated microbial communities and the intricate nature of their responses to anthropogenic global change.

• Cross, Hugh; Sønstebø, Jørn Henrik; Nagy, Nina Elisabeth; Timmermann, Volkmar; Solheim, Halvor & Børja, Isabella [Vis alle 12 forfattere av denne artikkelen] (2017). Fungal diversity and seasonal succession in ash leaves infected by the invasive ascomycete Hymenoscyphus fraxineus. New Phytologist. ISSN 0028-646X. 213(3), s. 1405–1417. doi: 10.1111/nph.14204. Fulltekst i vitenarkiv Vis sammendrag

  High biodiversity is regarded as a barrier against biological invasions. We hypothesized that the invasion success of the pathogenic ascomycete Hymenoscyphus fraxineus threatening common ash in Europe relates to differences in dispersal and colonization success between the invader and the diverse native competitors. Ash leaf mycobiome was monitored by high-throughput sequencing of the fungal internal transcribed spacer region (ITS) and quantitative PCR profiling of H. fraxineus DNA. Initiation of ascospore production by H. fraxineus after overwintering was followed by pathogen accumulation in asymptomatic leaves. The induction of necrotic leaf lesions coincided with escalation of H. fraxineus DNA levels and changes in proportion of biotrophs, followed by an increase of ubiquitous endophytes with pathogenic potential. H. fraxineus uses high propagule pressure to establish in leaves as quiescent thalli that switch to pathogenic mode once these thalli reach a certain threshold – the massive feedback from the saprophytic phase enables this fungus to challenge host defenses and the resident competitors in mid-season when their density in host tissues is still low. Despite the general correspondence between the ITS-1 and ITS-2 datasets, marker biases were observed, which suggests that multiple barcodes provide better overall representation of mycobiomes.

• Andrew, Carrie Joy; Heegaard, Einar; Halvorsen, Rune; Martinez-Pena, Fernando; Egli, Simon & Kirk, Paul M. [Vis alle 12 forfattere av denne artikkelen] (2016). Climate impacts on fungal community and trait dynamics. Fungal ecology. ISSN 1754-5048. 22, s. 17–25. doi: 10.1016/j.funeco.2016.03.005.
• Heegaard, Einar; Boddy, Lynne; Diez, Jefferey M.; Halvorsen, Rune; Kauserud, Håvard & Kuyper, Thomas W. [Vis alle 15 forfattere av denne artikkelen] (2016). Fine-scale spatiotemporal dynamics of fungal fruiting: prevalence, amplitude, range and continuity. Ecography. ISSN 0906-7590. 40(8), s. 947–959. doi: 10.1111/ecog.02256. Vis sammendrag

  Despite the critical importance of fungi as symbionts with plants, resources for animals, and drivers of ecosystem function, the spatiotemporal distributions of fungi remain poorly understood. The belowground life cycle of fungi makes it difficult to assess spatial patterns and dynamic processes even with recent molecular techniques. Here we offer an explicit spatiotemporal Bayesian inference of the drivers behind spatial distributions from investigation of a Swiss inventory of fungal fruit bodies. The unique inventory includes three temperate forest sites in which a total of 73 952 fungal fruit bodies were recorded systematically in a spatially explicit design between 1992 and 2006. Our motivation is to understand how broad-scale climate factors may influence spatiotemporal dynamics of fungal fruiting within forests, and if any such effects vary between two functional groups, ectomycorrhizal (ECM) and saprotrophic fungi. For both groups we asked: 1) how consistent are the locations of fruiting patches, the sizes of patches, the quantities of fruit bodies, and of prevalence (occupancy)? 2) Do the annual spatial characteristics of fungal fruiting change systematically over time? 3) Are spatial characteristics of fungal fruiting driven by climatic variation? We found high inter-annual continuity in fruiting for both functional groups. The saprotrophic species were characterised by small patches with variable fruit body counts. In contrast, ECM species were present in larger, but more distinctly delimited patches. The spatial characteristics of the fungal community were only indirectly influenced by climate. However, climate variability influenced overall yields and prevalence, which again links to spatial structure of fruit bodies. Both yield and prevalence were correlated with the amplitudes of occurrence and of fruit body counts, but only prevalence influenced the spatial range. Summarizing, climatic variability affects forest-stand fungal distributions via its influence on yield (amount) and prevalence (occupancy), whereas fungal life-history strategies dictate fine-scale spatial characteristics.

• Mundra, Sunil; Halvorsen, Rune; Kauserud, Håvard; Bahram, Mohammad; Tedersoo, Leho & Elberling, Bo [Vis alle 8 forfattere av denne artikkelen] (2016). Ectomycorrhizal and saprotrophic fungi respond differently to long-term experimentally increased snow depth in the High Arctic. MicrobiologyOpen. ISSN 2045-8827. 5(5), s. 856–869. doi: 10.1002/mbo3.375. Fulltekst i vitenarkiv
• Rämä, Teppo; Davey, Marie Louise; Nordén, Jenni; Halvorsen, Rune; Blaalid, Rakel & Mathiassen, Geir Harald [Vis alle 8 forfattere av denne artikkelen] (2016). Fungi sailing the Arctic ocean: speciose communities in North Atlantic driftwood as revealed by high-throughput amplicon sequencing. Microbial Ecology. ISSN 0095-3628. 72(2), s. 295–304. doi: 10.1007/s00248-016-0778-9. Vis sammendrag

  High amounts of driftwood sail across the oceans and provide habitat for organisms tolerating the rough and saline environment. Fungi have adapted to the extremely cold and saline conditions which driftwood faces in the high north. For the first time, we applied high-throughput sequencing to fungi residing in driftwood to reveal their taxonomic richness, community composition, and ecology in the North Atlantic. Using pyrosequencing of ITS2 amplicons obtained from 49 marine logs, we found 807 fungal perational taxonomic units (OTUs) based on clustering at 97 % sequence similarity cutoff level. The phylum Ascomycota comprised 74 % of the OTUs and 20 % belonged to Basidiomycota. The richness of basidiomycetes decreased with prolonged submersion in the sea, supporting the general view of ascomycetes being more extremotolerant. However, more than one fourth of the fungal OTUs remained unassigned to any fungal class, emphasising the need for better DNA reference data from the marine habitat. Different fungal communities were detected in coniferous and deciduous logs. Our results highlight that driftwood hosts a considerably higher fungal diversity than currently known. The driftwood fungal community is not a terrestrial relic but a speciose assemblage of fungi adapted to the stressful marine environment and different kinds of wooden substrates found in it. 454 sequencing . Metabarcoding . Marine fungi . Marine wooden substrates . Diversity . Community ecology . Biosystematics

• Mundra, Sunil; Bahram, Mohammad; Tedersoo, Leho; Kauserud, Håvard; Halvorsen, Rune & Eidesen, Pernille Bronken (2015). Temporal variation of Bistorta vivipara-associated ectomycorrhizal fungal communities in the High Arctic. Molecular Ecology. ISSN 0962-1083. 24(24), s. 6289–6302. doi: 10.1111/mec.13458.
• Balasundaram, Sudhagar; Engh, Ingeborg Bjorvand; Skrede, Inger & Kauserud, Håvard (2015). How many DNA markers are needed to reveal cryptic fungal species? Fungal Biology. ISSN 1878-6146. 119(10), s. 940–945. doi: 10.1016/j.funbio.2015.07.006.
• Davey, Marie Louise; Blaalid, Rakel; Vik, Unni; Carlsen, Tor; Kauserud, Håvard & Eidesen, Pernille Bronken (2015). Primary succession of Bistorta vivipara (L.) Delabre (Polygonaceae) root-associated fungi mirrors plant succession in two glacial chronosequences. Environmental Microbiology. ISSN 1462-2912. 17(8), s. 2777–2790. doi: 10.1111/1462-2920.12770.
• Mundra, Sunil; Halvorsen, Rune; Kauserud, Håvard; Müller, Eike; Vik, Unni & Eidesen, Pernille Bronken (2015). Arctic fungal communities associated with roots of Bistorta vivipara do not respond to the same fine-scale edaphic gradients as the aboveground vegetation. New Phytologist. ISSN 0028-646X. 205(4), s. 1587–1597. doi: 10.1111/nph.13216.
• Botnen, Synnøve; Kauserud, Håvard; Carlsen, Tor; Blaalid, Rakel & Høiland, Klaus (2015). Mycorrhizal fungal communities in coastal sand dunes and heaths investigated by pyrosequencing analyses. Mycorrhiza. ISSN 0940-6360. 25(6), s. 447–456. doi: 10.1007/s00572-014-0624-1.

Se alle arbeider i Cristin

• Kjønaas, O. Janne; Mundra, Sunil & Kauserud, Håvard (2021). Climate change mitigation and tree species change - time perspectives and potential tradeoffs.
• Malicki, Brunon; Nordén, Jenni; Kauserud, Håvard & Johannesson, Carl-Fredrik (2021). Climate change and management effects on taxonomic and functional diversity of soil communities. Vis sammendrag

  Boreal forests are crucial to the terrestrial carbon (C) stocks of the world, containing even 50% of all forest C, up to 80% of which can be located within their soils. There its cycle is regulated by a complex net of interactions between the organisms inhabiting it and the abiotic environment. Both climate change as well as anthropogenic disturbances in the form of management activities, can cause a reduction in their carbon stocks. For this reason, it is important to understand how community structure is affected by the ongoing climate change and various management activities in boreal forest soil. This kind of understanding is necessary for informed actions to mitigate the consequences of climate change. The aim of the project ForBioFunCtion is to assess the changes in boreal forest soil communities, as well as soil C fluxes that result from the activities of the soil communities, as a response to management and climate change. In order to do this, a chrono sequence has been set up in Norwegian bilberry spruce forests, including: a clear-cut, thinned middle-aged managed, mature managed as well as a near natural forest stand. Within each site, open top chambers, outfitted with heaters, will be placed, in order to stimulate an increase in temperature. Moreover, increased precipitation will be simulated by fortnightly watering. Lastly, nitrogen fertilizer or biochar will be added to experimental units within the clear-cut, thinned, middle-aged and mature managed stands. Each year, soil cores and dead wood samples will be taken from each experimental unit, and the communities inhabiting them will be analyzed with the use of next-generation sequencing and modern bioinformatics, in order to determine both the species as well as functional group composition. Moreover, mesh bags containing both plant and fungal necromass will be used for assessing the rate of litter decomposition under the different experimental conditions. The project aims to broaden the understanding of the response of soil communities to both climate change and improper forest management. This in turn could hopefully allow for creating methods of safeguarding the processes they regulate, as well as their diversity.

• Nybakken, Line & Kauserud, Håvard (2021). Effekter av skogbruk på biomangfold, karbonlagre og økologiske prosesser i eldre boreal granskog.
• Vollsnes, Ane Victoria; Stordal, Frode; Falk, Stefanie; Eriksen, Aud Berglen; Kauserud, Håvard & Berntsen, Terje Koren (2021). Field and lab experiments, plant ecophysiology starting from The double punch.
• Peris, David; Lu, Dabao Sun; Kinneberg, Vilde Bruhn; Methlie, Ine-Susanne Hopland; Dahl, Malin Stapnes & James, Timothy Y. [Vis alle 8 forfattere av denne artikkelen] (2021). Northern hemisphere fungal specimens unravel dynamic and polymorphic nature of mating loci.
• Kjønaas, O. Janne; Barcena, Teresa G.; Hylen, Gro; Nordbakken, Jørn-Frode; Økland, Tonje & Kauserud, Håvard [Vis alle 7 forfattere av denne artikkelen] (2021). Hvordan påvirker treslagsskifte karbonbinding og biomangfold?
• Põlme, Sergei; Abarenkov, Kessy; Nilsson, R. Henrik; Lindahl, Björn D.; Clemmensen, Karina Engelbrecht & Kauserud, Håvard [Vis alle 50 forfattere av denne artikkelen] (2021). Correction to: FungalTraits: a user friendly traits database of fungi and fungus-like stramenopiles. Fungal diversity. ISSN 1560-2745. doi: 10.1007/s13225-021-00470-0.
• Lu, Dabao Sun; Skrede, Inger; Kauserud, Håvard; Navarro, David Peris; Maurice, Sandy & Ravinet, Mark [Vis alle 7 forfattere av denne artikkelen] (2020). Population genomics of Trichaptum abietinum - a window into fungal speciation.
• Lu, Dabao Sun; Skrede, Inger; Kauserud, Håvard; Navarro, David Peris; Sønstebø, Jørn Henrik & Maurice, Sandy [Vis alle 7 forfattere av denne artikkelen] (2020). Population genomics of Trichaptum abietinum - a window into fungal speciation.
• Vollsnes, Ane Victoria; Falk, Stefanie; Eriksen, Aud Berglen; Kapperud, Åshild Fandango; Kauserud, Håvard & Stordal, Frode [Vis alle 7 forfattere av denne artikkelen] (2020). Responses to experimental ozone exposure in some native plant species from Northern Scandinavia.
• Vollsnes, Ane Victoria; Falk, Stefanie; Eriksen, Aud Else Berglen; Stordal, Frode; Kauserud, Håvard & Berntsen, Terje Koren [Vis alle 9 forfattere av denne artikkelen] (2020). The double punch: ozone and climate stresses on vegetation.
• Kjønaas, O. Janne; Bárcena, Teresa G.; Bright, Ryan M.; Hansen, Mette; Hylen, Gro & Kauserud, Håvard [Vis alle 10 forfattere av denne artikkelen] (2020). BalanC - The impact of increasing spruce plantation area on the carbon balance of forests in Western Norway. Preliminary conclusions .
• Kjønaas, O. Janne; Bárcena, Teresa G.; Bright, Ryan M.; Hansen, Mette; Hylen, Gro & Kauserud, Håvard [Vis alle 11 forfattere av denne artikkelen] (2020). Treslagsskifte som klimatiltak.
• Kjønaas, O. Janne; Bright, Ryan M.; Hylen, Gro; Bárcena, Teresa G.; Økland, Tonje & Nordbakken, Jørn-Frode [Vis alle 11 forfattere av denne artikkelen] (2020). Karbonbalansen i skog på Vestlandet.
• Morgado, Luis Neves; Mundra, Sunil; Kjønaas, Janne; Nybakken, L; Skarpaas, Olav & Nordén, Björn [Vis alle 7 forfattere av denne artikkelen] (2019). Space for time: Soil fungal communities across a boreal forest age gradient. 18th Congress of European Mycologists, Warzaw/Bialowieza, Poland 16-21 September 2019.
• Kjønaas, O. Janne; Bárcena, Teresa G.; Bright, Ryan M.; Hansen, Mette; Hylen, Gro & Kauserud, Håvard [Vis alle 10 forfattere av denne artikkelen] (2019). Karbonbalanse og treslagsskifte - foreløpig resultater fra BalanC.
• Kjønaas, O. Janne; Bárcena, Teresa G.; Bright, Ryan M.; Hansen, Mette; Hylen, Gro & Kauserud, Håvard [Vis alle 10 forfattere av denne artikkelen] (2019). Carbon balance and tree species change – preliminary results from BalanC.
• Mundra, Sunil; Morgado, Luis Neves; Kauserud, Håvard & Kjønaas, O. Janne (2019). Compositional shift in communities of bacteria and fungi following tree species change from unmanaged birch to managed spruce forest.
• Kjønaas, O. Janne; Bárcena, Teresa G.; Mette, Hansen; Mundra, Sunil; Kauserud, Håvard & Hylen, Gro [Vis alle 8 forfattere av denne artikkelen] (2019). Effects of tree species change on soil characteristics in Western Norway - BalanC.
• Kjønaas, O. Janne; Bárcena, Teresa G.; Bright, Ryan M.; Hanssen, Mette; Hylen, Gro & Kauserud, Håvard [Vis alle 10 forfattere av denne artikkelen] (2019). The impact of increasing spruce plantation area on the carbon balance of forests in Western Norway – BalanC .
• Jacobsen, Rannveig Margrete; Sverdrup-Thygeson, Anne; Birkemoe, Tone; Kauserud, Håvard & Mundra, Sunil (2019). Experimental exclusion of invertebrates influences saprotrophic fungal community and wood decay rate in the field.
• Mundra, Sunil; Morgado, Luis Neves; Kjønaas, O. Janne & Kauserud, Håvard (2018). Compositional shift in communities of bacteria and fungi following tree species change from unmanaged birch to managed spruce forest.
• Skrede, Inger; Hess, Jaqueline; Sønstebø, Jørn Henrik; Maurice, Sundy Ursula Mary Jane; Eastwood, Daniel C. & Kauserud, Håvard (2018). How to decompose a house? Comparative and population genomic analyses of the dry rot fungus.
• Skrede, Inger; Hess, Jaqueline; Eastwood, Daniel C. & Kauserud, Håvard (2018). Evolutionary necessities for invading buildings, comparative and population genomic analyses of the dry rot fungus.
• Mundra, Sunil; Morgado, Luis Neves; Kjønaas, O. Janne & Kauserud, Håvard (2018). Soil depth matters: Bacteria, fungi and micro-eukaryotes are all strongly structured by soil depth. I Kettunen, Krista & Kiikkilä, Oili (Red.), 3rd Conference on Ecology of Soil Microorganisms 2018. LUKE. ISSN 978-952-326-584-4. s. 157–157.
• Kjønaas, O. Janne; Mundra, Sunil; Bárcena, Teresa G.; Hansen, Mette; Hylen, Gro & Kauserud, Håvard (2018). How does tree species change affect forest soil C stocks, C mineralization rates, organic matter stability and microbial diversity? I Kettunen, Krista & Kiikkilä, Oili (Red.), 3rd Conference on Ecology of Soil Microorganisms 2018. LUKE. ISSN 978-952-326-584-4. s. 134–134.
• Mundra, Sunil; Morgado, Luis Neves; Kjønaas, O. Janne & Kauserud, Håvard (2018). Soil depth matters: Bacteria, fungi and micro-eukaryotes are strongly structured by soil Depth.
• Mundra, Sunil; Morgado, Luis Neves; Kjønaas, O. Janne & Kauserud, Håvard (2018). Community of bacteria, fungi and micro-eukaryotes structured along soil forest stratification.
• Kjønaas, O. Janne; Mundra, Sunil; Bárcena, Teresa G.; Hansen, Mette; Hylen, Gro & Kauserud, Håvard (2018). How does tree species change affect forest soil C stocks, C mineralization rates, organic matter stability and microbial diversity? .
• Vollsnes, Ane Victoria; Eriksen, Aud Berglen; Falk, Stefanie; Berntsen, Terje Koren; Kauserud, Håvard & Emberson, Lisa D. [Vis alle 7 forfattere av denne artikkelen] (2018). Project The double punch: ozone and climate stresses on vegetation.
• Vollsnes, Ane Victoria; Eriksen, Aud Berglen; Kauserud, Håvard; Berntsen, Terje Koren & Stordal, Frode (2018). The double punch: ozone and climate stresses on vegetation.
• Vollsnes, Ane Victoria; Eriksen, Aud Berglen; Berntsen, Terje Koren; Kauserud, Håvard; Büker, Patrick & Emberson, Lisa D. [Vis alle 7 forfattere av denne artikkelen] (2018). The double punch: ozone and climate stresses to sub-Arctic vegetation.
• Vollsnes, Ane Victoria; Eriksen, Aud Berglen; Büker, Patrick; Kauserud, Håvard; Falk, Stefanie & Stordal, Frode (2018). Ozone stress on sub-Arctic tundra vegetation: ozone exposure experiments with daylength manipulation.
• Tonjer, Lea-Rebekka; Thoen, Ella; Morgado, Luis Neves; Mundra, Sunil; Nybakken, Line & Bryn, Anders [Vis alle 7 forfattere av denne artikkelen] (2018). Changes in the soil fungal community across the mountain birch tree line ecotone.
• Jacobsen, Rannveig Margrete; Sverdrup-Thygeson, Anne; Kauserud, Håvard; Mundra, Sunil & Birkemoe, Tone (2018). Exclusion of invertebrates influences saprotrophic fungal community and wood decay rate in an experimental field study.
• Jacobsen, Rannveig Margrete; Birkemoe, Tone; Sverdrup-Thygeson, Anne; Mundra, Sunil & Kauserud, Håvard (2018). Experimental exclusion of invertebrates influences fungal community and wood decay rate.
• Skrede, Inger; Hess, Jaqueline; Balasundaram, Sudhagar; Högberg, Nils; Maurice, Sundy Ursula Mary Jane & Kohler, Annegret [Vis alle 9 forfattere av denne artikkelen] (2017). Evolutionary necessities for invading buildings, comparative and population genomic analyses in the dry rot fungus.
• Stordal, Frode; Tang, Hui; Berntsen, Terje Koren; Büker, Patrick; Vollsnes, Ane Victoria & Eriksen, Aud Berglen [Vis alle 7 forfattere av denne artikkelen] (2017). Modelling combined effects of ozone and climate stresses on Arctic and boreal species.
• Eidesen, Pernille Bronken; Mundra, Sunil; Botnen, Synnøve Smebye; Davey, Marie Louise; Lorberau, Kelsey & Kauserud, Håvard (2016). Spatial diversity and community composition of root associated fungi in the High Arctic archipelago Svalbard - environmental influence is scale dependent.
• Rämä, Teppo; Davey, Marie Louise; Nordén, Jenni; Halvorsen, Rune; Blaalid, Rakel & Mathiassen, Geir Harald [Vis alle 8 forfattere av denne artikkelen] (2016). High-throughput amplicon sequencing reveals high fungal diversity in North Atlantic driftwood.
• Jacobsen, Rannveig M; Birkemoe, Tone; Sverdrup-Thygeson, Anne; Kauserud, Håvard & Botnen, Synnøve Smebye (2016). The potential of insects to act as spore vectors.
• Hess, Jaqueline; Balasundaram, Sudhagar; Eastwood, Daniel C.; Durling, Mikael Brandström; Fossdal, Carl Gunnar & Högberg, Nils [Vis alle 8 forfattere av denne artikkelen] (2016). Exploring specialization in wood decay mechanisms in the harmful house-invader Serpula lacrymans using an evolutionary transcriptomics approach.
• Skrede, Inger; Hess, Jaqueline; Balasundaram, Sudhagar; Kauserud, Håvard; Eastwood, Daniel C. & Högberg, Nils [Vis alle 10 forfattere av denne artikkelen] (2016). Invasiveness of the harmful house-invader Serpula lacrymans – population genomics of the Japanese and European populations.
• Skrede, Inger; Hess, Jaqueline; Balasundaram, Sudhagar; Kauserud, Håvard; Eastwood, Daniel C. & Boddy, Lynne M [Vis alle 9 forfattere av denne artikkelen] (2016). The fungus that came in from the cold: Dry rots pre-adapted ability to invade buildings.
• Skrede, Inger; Hess, Jaqueline; Balasundaram, Sudhagar; Eastwood, D; Kohler, Annegret & Murat, Claude [Vis alle 11 forfattere av denne artikkelen] (2015). Invasiveness of the harmful house decomposer Serpula lacrymans - population genomic approaches.

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