Audun Slettan

• Slettan, Audun; Gaupeland, Stian; Lindbo, Nils Gunnar; Kastrud, Kathinka Marie; Måseide, Heini T.S. & Johansen, Beate Strøm (2026). Detection of three amphibian species in two city forests in Kristiansand, southern Norway, using environmental DNA analysis. Fauna Norvegica. ISSN 1502-4873. 45, s. 14–20. doi: 10.5324/fn.v45i0.6595. Fulltekst i vitenarkiv Vis sammendrag

  In the context of global amphibian declines, there is need to map local amphibian populations to establish baseline knowledge of potential future species losses. Even in well-studied lakes and ponds within popular recreational areas near urban centres, information on amphibian occurrence can be limited. In this study, the local distributions of Lissotriton vulgaris, Rana temporaria and Bufo bufo were assessed using eDNA analysis in two city forest areas of Kristiansand, Southern Norway. In the forest Baneheia, all three species were detected, although R. temporaria was present in only half of the lakes. In the forest Jegersberg, L. vulgaris was detected in nearly all lakes while B. bufo only in fewer than half, and R. temporaria was not detected. Our results support the public observations system Artsobservasjoner.no that R. temporaria is uncommon in the coastal area of Kristiansand. Comparison of active netting with eDNA analysis indicated that eDNA is a more reliable method for detecting amphibians. Interestingly, larvae of L. vulgaris were observed in one of the lakes in Baneheia inhabited by Salmo trutta, in a shallow bay with dense aquatic vegetation, demonstrating that newts can successfully reproduce alongside trout under certain conditions.

• Phan, Veronica Quynh Thi; Samslått, Marielle Celine; Cleary, Alison C.; Sørensen, Pål; Slettan, Audun & Johansen, Beate Strøm (2025). Dietary adaptations along the northern limit of distribution: what does the smooth snake Coronella austriaca eat in Norway? Metabarcoding of stomach content and visual analysis of faeces. Wildlife Biology. ISSN 0909-6396. 2025(5). doi: 10.1002/wlb3.01412. Fulltekst i vitenarkiv Vis sammendrag

  Understanding how species survive at their poleward limits of distribution is of interest in species conservation, particularly in light of global warming and predictions of shifting distributions of both predators and prey species. How species adapt to high latitudes and to future climate changes will be impacted both by direct interactions with the environment, such as changing heat tolerances, but also indirectly through biotic interactions with prey and predators. The smooth snake Coronella austriaca in Norway provides an interesting case study of biotic interactions at range limits. The number of potential prey species of C. austriaca is lower in Norway than in southern latitudes. To investigate trophic adaptations at its poleward range limit we used metabarcoding sequencing to identify prey species in stomach samples of a museum collection of 17 preserved C. austriaca from Agder in southern Norway. Eight prey species were detected, four reptiles and four mammals. Field vole Microtus agrestis and common shrew Sorex araneus were the most common prey species, while bank vole Myodes glareolus and wood mice Apodemus sylvaticus were eaten by only a few smooth snakes. Slow worm Anguis fragilis was found in five samples and common lizard Zootoca vivipara in only three samples. DNA was also recovered from grass snake Natrix natrix in all but one sample, and DNA from European adder Vipera berus in one sample, indicating the role of ophiophagy. Visual analysis of 75 faeces from the Oslo region showed that A. fragilis was the most common prey species, followed by shrews. The main conclusion is that C. austriaca in Norway have a higher proportion of mammalian prey and snakes in their diet compared to populations in more southern latitudes.

• Mansoor, Mohammad Azam; Stea, Tonje Holte; Slettan, Audun; Perera, Erandie; Maddumage, Rimi & Kottahachi, Darshana [Vis alle 9 forfattere av denne artikkelen] (2025). Impact of single nucleotide polymorphisms (SNPs) in antioxidant-enzyme genes on the concentrations of folate, homocysteine and glutathione in plasma from healthy subjects after folic acid supplementation – a randomized controlled crossover trial. Genes & Nutrition. ISSN 1555-8932. 20. doi: 10.1186/s12263-024-00761-6. Fulltekst i vitenarkiv Vis sammendrag

  Background One-carbon metabolism links folate and methionine metabolism and this is essential for nucleotide synthesis in the cells. Alterations in one-carbon metabolism are associated with cardiovascular disease (CVD), type 2 diabetes and cancer. Our aim was to investigate whether SNPs in antioxidant-enzyme genes impact the concentrations of folate in serum (s-folate), plasma total homocysteine (p-tHcy) and total glutathione in plasma (p-tGSH) in healthy subjects after supplementation with folic acid. Methods In a randomized, double blind, crossover study, healthy subjects received 0.8 mg folic acid per day or a placebo for two weeks. Twenty-four male, and sixty-seven female subjects participated in this study. Participants were aged 36.4 ± 14.8 years (mean ± SD). We studied SNPs in six genes by PCR methods. The concentrations of s-folate, p-tHcy and p-tGSH were measured in fasting samples with Cobas and an HPLC-fluorescence method. Student T-tests and ANOVA were used for the statistical calculations. Main findings The subjects with SNP (rs4880) in superoxide dismutase (SOD2) gene (CC) allele had higher concentrations of s-folate and lower concentrations of p-tHcy than subjects with (CT + TT) alleles, (p = 0.014 and p = 0.012). Contrary to SOD2 (CC) allele, the subjects with SNP (rs1001179) catalase (CAT) CC allele had lower concentrations of s-folate (p = 0.029), higher concentrations of p-tGSH (0.017) and higher concentrations of p-tHcy before and after folic acid supplementations (p = 0.015, p = 0.017) than the subjects with (CT + TT) allele. Glutathione transferase (theta)1 (GST-T1) genotype was associated with higher concentrations of s-folate than GST-T0 before (p = 0.025) and after folic acid supplementation (p = 0.047). SNP (rs1050450) in glutathione peroxidase (GPX1) had also impact on the concentrations of p-tGSH (p = 0.011) in healthy subjects. Conclusion SNPs in SOD2 (rs4880), CAT (rs1001179), and GST1 impact the concentrations of s-folate, and p-tHcy in healthy subjects before and after folic acid supplementation. Our findings suggest that SNPs in antioxidant-genes have a role in health and disease by impacting the concentrations of s-folate, p-tHcy and p-tGSH.

• Halvorsen, Silje; Korslund, Lars; Mattingsdal, Morten & Slettan, Audun (2023). Estimating number of European eel (Anguilla anguilla) individuals using environmental DNA and haplotype count in small rivers. Ecology and Evolution. 13(2). doi: 10.1002/ece3.9785. Fulltekst i vitenarkiv Vis sammendrag

  Knowledge about population genetic data is important for effective conservation management. Genetic research traditionally requires sampling directly from the organism, for example tissue, which can be challenging, time-consuming, and harmful to the animal. Environmental DNA (eDNA) approaches offer a way to sample genetic material noninvasively. In attempts to estimate population size of aquatic species using eDNA, researchers have found positive correlations between biomass and eDNA concentrations, but the approach is debated because of variations in the production and degrading of DNA in water. Recently, a more accurate eDNA-approach has emerged, focusing on the genomic differences between individuals. In this study, we used eDNA from water samples to estimate the number of European eel (Anguilla anguilla) individuals by examining haplotypes in the mitochondrial D-loop region, both in a closed aquatic environment with 10 eels of known haplotypes and in three rivers. The results revealed that it was possible to find every eel haplotype in the eDNA sample collected from the closed environment. We also found 13 unique haplotypes in the eDNA samples from the three rivers, which probably represent 13 eel individuals. This means that it is possible to obtain genomic information from European eel eDNA in water; however, more research is needed to develop the approach into a possible future tool for population quantification.

• Strand, Leif Åge; Måseide, Heini T.S.; Gaupeland, Stian; Johansen, Beate Strøm & Slettan, Audun (2022). Great crested newt Triturus cristatus, smooth newt Lissotriton vulgaris, and other amphibians in an acidified area of southern Norway surveyed using eDNA and other methods. The Herpetological Bulletin. ISSN 1473-0928. 161(161), s. 5–11. doi: 10.33256/hb161.511. Fulltekst i vitenarkiv
• Moseid, Camilla V.S.; Falkenhaug, Tone & Slettan, Audun (2021). Development of a TaqMan PCR assay for the identification of the non-native copepod Acartia tonsa, and detection of this species in Norwegian coastal waters. Journal of Plankton Research. ISSN 0142-7873. 43(3), s. 497–499. doi: 10.1093/plankt/fbab029. Fulltekst i vitenarkiv
• Kjær, Lene Jung; Klitgaard, Kirstine; Soleng, Arnulf; Edgar, Kristin Skarsfjord; Lindstedt, Heidi Elisabeth Heggen & Paulsen, Katrine Mørk [Vis alle 17 forfattere av denne artikkelen] (2020). Spatial patterns of pathogen prevalence in questing Ixodes ricinus nymphs in southern Scandinavia, 2016. Scientific Reports. 10, s. 1–14. doi: 10.1038/s41598-020-76334-5. Fulltekst i vitenarkiv
• Halvorsen, Silje; Korslund, Lars; Gustavsen, Per Øyvind & Slettan, Audun (2020). Environmental DNA analysis indicates that migration barriers are decreasing the occurrence of European eel (Anguilla anguilla) in distance from the sea. Global Ecology and Conservation. 24. doi: 10.1016/j.gecco.2020.e01245. Fulltekst i vitenarkiv
• Kjær, Lene Jung; Klitgaard, Kristine; Soleng, Arnulf; Edgar, Kristin Skarsfjord; Lindstedt, Heidi Elisabeth Heggen & Paulsen, Katrine Mørk [Vis alle 17 forfattere av denne artikkelen] (2020). Spatial data of Ixodes ricinus instar abundance and nymph pathogen prevalence, Scandinavia, 2016–2017. Scientific Data. 7(1). doi: 10.1038/s41597-020-00579-y. Fulltekst i vitenarkiv Vis sammendrag

  Ticks carry pathogens that can cause disease in both animals and humans, and there is a need to monitor the distribution and abundance of ticks and the pathogens they carry to pinpoint potential high risk areas for tick-borne disease transmission. In a joint Scandinavian study, we measured Ixodes ricinus instar abundance at 159 sites in southern Scandinavia in August-September, 2016, and collected 29,440 tick nymphs at 50 of these sites. We additionally measured abundance at 30 sites in August-September, 2017. We tested the 29,440 tick nymphs in pools of 10 in a Fluidigm real-time PCR chip to screen for 17 different tick-associated pathogens, 2 pathogen groups and 3 tick species. We present data on the geolocation, habitat type and instar abundance of the surveyed sites, as well as presence/absence of each pathogen in all analysed pools from the 50 collection sites and individual prevalence for each site. These data can be used alone or in combination with other data for predictive modelling and mapping of high-risk areas.

• Kjær, Lene Jung; Soleng, Arnulf; Edgar, Kristin Skarsfjord; Lindstedt, Heidi Elisabeth H; Paulsen, Katrine Mørk & Andreassen, Åshild Kristine [Vis alle 16 forfattere av denne artikkelen] (2019). A large scale screening for the taiga tick, Ixodes persulcatus, and the meadow tick, Dermacentor reticulatus in southern Scandinavia, 2016. Parasites & Vectors. doi: 10.1186/s13071-019-3596-3. Fulltekst i vitenarkiv
• Kjær, Lene Jung; Soleng, Arnulf; Edgar, Kristin Skarsfjord; Lindstedt, Heidi Elisabeth Heggen; Paulsen, Katrine Mørk & Andreassen, Åshild Kristine [Vis alle 16 forfattere av denne artikkelen] (2019). Predicting the spatial abundance of Ixodes ricinus ticks in southern Scandinavia using environmental and climatic data. Scientific Reports. 9(1). doi: 10.1038/s41598-019-54496-1. Fulltekst i vitenarkiv Vis sammendrag

  Recently, focus on tick-borne diseases has increased as ticks and their pathogens have become widespread and represent a health problem in Europe. Understanding the epidemiology of tick-borne infections requires the ability to predict and map tick abundance. We measured Ixodes ricinus abundance at 159 sites in southern Scandinavia from August-September, 2016. We used field data and environmental variables to develop predictive abundance models using machine learning algorithms, and also tested these models on 2017 data. Larva and nymph abundance models had relatively high predictive power (normalized RMSE from 0.65–0.69, R2 from 0.52–0.58) whereas adult tick models performed poorly (normalized RMSE from 0.94–0.96, R2 from 0.04–0.10). Testing the models on 2017 data produced good results with normalized RMSE values from 0.59–1.13 and R2 from 0.18–0.69. The resulting 2016 maps corresponded well with known tick abundance and distribution in Scandinavia. The models were highly influenced by temperature and vegetation, indicating that climate may be an important driver of I. ricinus distribution and abundance in Scandinavia. Despite varying results, the models predicted abundance in 2017 with high accuracy. The models are a first step towards environmentally driven tick abundance models that can assist in determining risk areas and interpreting human incidence data.

• Kjær, Lene Jung; Soleng, Arnulf; Edgar, Kristin Skarsfjord; Lindstedt, Heidi Elisabeth H.; Paulsen, Katrine Mørk & Andreassen, Åshild Kristine [Vis alle 16 forfattere av denne artikkelen] (2019). Predicting and mapping human risk of exposure to ixodes ricinus nymphs using climatic and environmental data, Denmark, Norway and Sweden, 2016. Eurosurveillance. ISSN 1025-496X. 24(9). doi: 10.2807/1560-7917.ES.2019.24.9.1800101. Fulltekst i vitenarkiv
• Tariq, Ambreen; Mansoor, Mohammad Azam; Marti, Hans-Peter; Jonsson, Grete; Slettan, Audun & Weeraman, Pabasara [Vis alle 7 forfattere av denne artikkelen] (2018). Systemic redox biomarkers and their relationship to prognostic risk markers in autosomal dominant polycystic kidney disease and IgA nephropathy. Clinical Biochemistry. ISSN 0009-9120. 56, s. 33–40. doi: 10.1016/j.clinbiochem.2018.04.010. Fulltekst i vitenarkiv
• Cabo, Rona; Hernes, Sigrunn; Slettan, Audun; Haugen, Margaretha; Ye, Shu & Blomhoff, Rune [Vis alle 7 forfattere av denne artikkelen] (2015). Effect of genetic polymorphisms involved in folate metabolism on the concentration of serum folate and plasma total homocysteine (p-tHcy) in healthy subjects after short-term folic acid supplementation: a randomized, double blind, crossover study. Genes & Nutrition. ISSN 1555-8932. 10. doi: 10.1007/s12263-015-0456-4. Fulltekst i vitenarkiv
• Cabo, Rona; Hernes, Sigrunn; Slettan, Audun; Haugen, Margaretha; Ye, Shu & Blomhoff, Rune [Vis alle 7 forfattere av denne artikkelen] (2015). Effects of polymorphisms in endothelial nitric oxide synthase and folate metabolizing genes on the concentration of serum nitrate, folate, and plasma total homocysteine after folic acid supplementation: A double-blind crossover study. Nutrition - The International Journal of Applied and Basic Nutritional Sciences. ISSN 0899-9007. 31(2), s. 337–344. doi: 10.1016/j.nut.2014.08.009. Fulltekst i vitenarkiv
• Kjelland, Vivian; Rollum, Rikke; Korslund, Lars; Slettan, Audun & Tveitnes, Dag (2015). Borrelia miyamotoi is widespread in Ixodes ricinus ticks in southern Norway. Ticks and Tick-borne Diseases. ISSN 1877-959X. 6(4), s. 516–521. doi: 10.1016/j.ttbdis.2015.04.004. Fulltekst i vitenarkiv
• Hundhausen, Thomas Eckhard; Lacsamana, Nancy; Tednes, Uraiwan & Slettan, Audun (2014). RHD-genotyping ved bruk av allel-spesifikk "Loop-mediated isothermal DNA Amplification". Bioingeniøren. ISSN 0801-6828. 49(3), s. 16–21. Fulltekst i vitenarkiv
• Cabo, Rona; Kozik, Karolina; Milanowski, Maciej; Hernes, Sigrunn; Slettan, Audun & Haugen, Margaretha [Vis alle 9 forfattere av denne artikkelen] (2014). A simple high-performance liquid chromatography (HPLC) method for the measurement of pyridoxal-5-phosphate and 4-pyridoxic acid in human plasma. Clinica Chimica Acta. ISSN 0009-8981. 433, s. 150–156. doi: 10.1016/j.cca.2014.03.003. Fulltekst i vitenarkiv
• Kjelland, Vivian; Ytrehus, Bjørnar; Vikøren, Turid; Stuen, Snorre; Skarpaas, Tone & Slettan, Audun (2011). Borrelia burgdorferi sensu lato detected in skin of Norwegian mountain hares (Lepus timidus) without signs of dissemination. Journal of Wildlife Diseases. ISSN 0090-3558. 47(2), s. 293–299. doi: 10.7589/0090-3558-47.2.293. Fulltekst i vitenarkiv
• Kjelland, Vivian; Ytrehus, Bjørnar; Stuen, Snorre; Skarpaas, Tone & Slettan, Audun (2011). Prevalence of Borrelia burgdorferi in Ixodes ricinus ticks collected from moose (Alces alces) and roe deer (Capreolus capreolus) in southern Norway. Ticks and Tick-borne Diseases. ISSN 1877-959X. 2, s. 99–103. doi: 10.1016/j.ttbdis.2010.12.002. Fulltekst i vitenarkiv Vis sammendrag

  As part of a larger survey, ears from 18 roe deer (Capreolus capreolus) and 52 moose (Alces alces) shot in the 2 southernmost counties in Norway were collected and examined for Ixodes ricinus ticks. Seventytwo adult ticks, 595 nymphs, and 267 larvae from the roe deer, and 182 adult ticks, 433 nymphs, and 70 larvae from the moose were investigated for infection with Borrelia burgdorferi sensu lato (s.l.). The results showed the presence of B. burgdorferi s.l. DNA in 2.9% of the nymphs collected from roe deer and in 4.4% of the nymphs and 6.0% of the adults collected from moose. The spirochetes were not detected in adult ticks from roe deer, or in larvae feeding on roe deer or moose. In comparison, the mean infection prevalences in questing I. ricinus collected from the same geographical area were 0.5% infection in larvae, 24.5% in nymphs, and 26.9% in adults. The most prevalent B. burgdorferi genospecies identified in ticks collected from roe deer was B. afzelii (76.5%), followed by B. garinii (17.6%), and B. burgdorferi sensu stricto (5.9%). Only B. afzelii (76.7%) and B. garinii (23.3%) were detected in ticks collected from moose. The present study indicates a lower prevalence of B. burgdorferi infection in I. ricinus ticks feeding on roe deer and moose compared to questing ticks. This is the first study to report B. burgdorferi s.l. prevalence in ticks removed from cervids in Norway.

• Kjelland, Vivian; Stuen, Snorre; Skarpaas, Tone & Slettan, Audun (2010). Borrelia burgdorferi sensu lato in Ixodes ricinus ticks collected from migratory birds in Southern Norway. Acta Veterinaria Scandinavica (AVS). ISSN 0044-605X. 52. doi: 10.1186/1751-0147-52-59. Fulltekst i vitenarkiv Vis sammendrag

  Background Borrelia burgdorferi sensu lato (s.l.) are the causative agent for Lyme borreliosis (LB), the most common tick-borne disease in the northern hemisphere. Birds are considered important in the global dispersal of ticks and tick-borne pathogens through their migration. The present study is the first description of B. burgdorferi prevalence and genotypes in Ixodes ricinus ticks feeding on birds during spring and autumn migration in Norway. Methods 6538 migratory birds were captured and examined for ticks at Lista Bird Observatory during the spring and the autumn migration in 2008. 822 immature I. ricinus ticks were collected from 215 infested birds. Ticks were investigated for infection with B. burgdorferi s.l. by real-time PCR amplification of the 16S rRNA gene, and B. burgdorferi s.l. were thereafter genotyped by melting curve analysis after real-time PCR amplification of the hbb gene, or by direct sequencing of the PCR amplicon generated from the rrs (16S)-rrl (23S) intergenetic spacer. Results B. burgdorferi s.l. were detected in 4.4% of the ticks. The most prevalent B. burgdorferi genospecies identified were B. garinii (77.8%), followed by B.valaisiana (11.1%), B. afzelii (8.3%) and B. burgdorferi sensu stricto (2.8%). Conclusion Infection rate in ticks and genospecies composition were similar in spring and autumn migration, however, the prevalence of ticks on birds was higher during spring migration. The study supports the notion that birds are important in the dispersal of ticks, and that they may be partly responsible for the heterogeneous distribution of B. burgdorferi s.l. in Europe.

• Kjelland, Vivian; Stuen, Snorre; Skarpaas, Tone & Slettan, Audun (2010). Prevalence and genotypes of Borrelia burgdorferi sensu lato infection in Ixodes ricinus ticks in southern Norway. Scandinavian Journal of Infectious Diseases. ISSN 0036-5548. 42(8), s. 579–585. doi: 10.3109/00365541003716526. Fulltekst i vitenarkiv Vis sammendrag

  From April to October 2007, host-seeking Ixodes ricinus ticks were collected from 4 locations in southern Norway: Farsund, Mandal, Sogne and Tromoy. Two hundred and ten larvae, 1130 nymphs and 449 adults were investigated for infection with Borrelia burgdorferi sensu lato (s.l.) by real-time polymerase chain reaction (PCR) amplification of the 16S rRNA gene. The total percentage of B. burgdorferi s.l. in nymphal and adult ticks was determined to be 31.3% in Farsund, 25.2% in Mandal, 22.3% in Sogne and 22.1% in Tromoy. Larvae were pooled in groups of 10 before analysis, and Borrelia infection was detected in 1 of the 21 larvae pools. B. burgdorferi s.l. were genotyped by melting curve analysis after real-time PCR amplification of the hbb gene, or by direct sequencing of the PCR amplicon generated from the rrs (16S)-rrl (23S) intergenetic spacer. The most prevalent B. burgdorferi genospecies identified were B. afzelii (61.6%), followed by B. garinii (23.4%) and B. burgdorferi sensu stricto (10.6%). B. valaisiana (4.5%) was identified in Norwegian ticks for the first time. Mixed infections were observed in 0.3% of the infected ticks. A higher prevalence of B. burgdorferi s.l. was found in the present study than what has been reported in previous Nordic studies.

• Rengmark, Aina Haugen; Rengmark, Aina Haugen; Slettan, Audun; Lee, Woo-Jai; Lie, Øystein & Lingaas, Frode [Vis alle 7 forfattere av denne artikkelen] (2007). Identification and mapping of genes associated with salt tolerance in tilapia. Journal of Fish Biology. ISSN 0022-1112. 71(SC), s. 409–422. Fulltekst i vitenarkiv
• Rengmark, Aina Haugen; Rengmark, Aina Haugen; Slettan, Audun; Skaala, Øystein; Lie, Øystein & Lingaas, Frode [Vis alle 7 forfattere av denne artikkelen] (2006). Genetic variability in wild and farmed Atlantic salmon (Salmo salar) strains estimated by SNP and microsatellites. Aquaculture. ISSN 0044-8486. 253, s. 229–237. Fulltekst i vitenarkiv Vis sammendrag

  The SNP collection showed nearly as good results as the microsatellites in this study and improved high throughput typing methods for SNP detection suggest that they can be a good alternative to microsatellites for future typing. (C) 2005 Elsevier B.V. All rights reserved.

• Lee, Bo-Young; Lee, Woo-Jai; Streelman, Todd; Carleton, Karen; Howe, Aimee & Hulata, Gideon [Vis alle 10 forfattere av denne artikkelen] (2005). A Second-Generation Genetic Linkage Map of Tilapia (Oreochromis spp.). Genetics. ISSN 0016-6731. 170, s. 237–244. Fulltekst i vitenarkiv
• Slettan, Audun; Gebhardt, Kirsti; Kristiansen, Evy; Birkeland, Nils Kåre & Lindqvist, Bjørn H (1992). Escherichia coli K-12 and B contain functional bacteriophage P2 ogr genes. Journal of Bacteriology. ISSN 0021-9193. 174(12), s. 4094–4100. doi: 10.1128/jb.174.12.4094-4100.1992. Fulltekst i vitenarkiv

Se alle arbeider i NVA

• Kjelland, Vivian; Korslund, Lars & Slettan, Audun (2014). Fakta om flått. Kagge Forlag AS. ISBN 9788248914143. 126 s. Fulltekst i vitenarkiv

Se alle arbeider i NVA

• Lien, Anne; Nygård, Malene Østreng; Laugen, Ane Timenes; Lie, Asbjørn; Slettan, Audun & Johansen, Beate Strøm [Vis alle 33 forfattere av denne artikkelen] (2023). Utbygging vil ødelegge for biologisk mangfold på campus Gimlemoen. NB! 34 forfattere totalt. s. 19–19. Fulltekst i vitenarkiv
• Kjær, Lene Jung; Klitgaard, Kirstine; Soleng, Arnulf; Edgar, Kristin Skarsfjord; Lindstedt, Heidi Elisabeth Heggen & Paulsen, Katrine Mørk [Vis alle 17 forfattere av denne artikkelen] (2020). Author Correction: Spatial data of Ixodes ricinus instar abundance and nymph pathogen prevalence, Scandinavia, 2016–2017 (Scientific Data, (2020), 7, 1, (238), 10.1038/s41597-020-00579-y). Scientific Data. 7(1). doi: 10.1038/s41597-020-00606-y. Fulltekst i vitenarkiv
• Kjær, Lene Jung; Soleng, Arnulf; Edgar, Kristin Skarsfjord; Lindstedt, Heidi Elisabeth H.; Paulsen, Katrine Mørk & Andreassen, Åshild Kristine [Vis alle 18 forfattere av denne artikkelen] (2019). A large-scale screening for the taiga tick, Ixodes persulcatus, and the meadow tick, Dermacentor reticulatus, in southern Scandinavia, 2016. Parasites & Vectors. 12:338, s. 1–4. doi: 10.1186/s13071-019-3596-3. Fulltekst i vitenarkiv
• Slettan, Audun (2018). Flåtten overlever sprengkulda. [Journal]. Vesterålen. Fulltekst i vitenarkiv
• Slettan, Audun (2018). Flåttsommer i vente! [Internet]. Flåttbloggen. Fulltekst i vitenarkiv
• Slettan, Audun (2018). Mange flått overlevde sprengkulden – klart for ny flåttsommer. [Internet]. abc nyheter. Fulltekst i vitenarkiv
• Slettan, Audun (2018). Mindre flått i tørken. [Journal]. Sunnmøringen. Fulltekst i vitenarkiv
• Slettan, Audun (2018). Mindre flått i tørken – men mer flått nå enn før. [Journal]. Nationen. Fulltekst i vitenarkiv
• Kjelland, Vivian; Kjelland, Vivian; Korslund, Lars; Edgar, Kristin Skarsfjord; Stuen, Snorre & Slettan, Audun [Vis alle 9 forfattere av denne artikkelen] (2017). Ixodes ricinus winter survival and spring emergence in southern Norway. Fulltekst i vitenarkiv
• Slettan, Audun (2012). Flått og flåttbårne sykdommer, Hysteri eller trussel? I Hanisch, Thor Einar (Red.), Agder Vitenskapsakademi. Årbok 2011. Portal forlag. ISSN 9788292712696. s. 76–81. Fulltekst i vitenarkiv
• Cabo, Rona Natalie; Hernes, Sigrunn; Slettan, Audun; Haugen, H; Ye, S & Blomhoff, Rune [Vis alle 8 forfattere av denne artikkelen] (2011). Effect of polymorphisms in genes coding for enzyme involved in folate metabolism on the concentration of serum folate in healthy subjects during folic acid supplementation. Fulltekst i vitenarkiv
• Slettan, Audun (2009). Om bruk av flåttdrepende midler i klær. Fulltekst i vitenarkiv
• Slettan, Audun (2009). Om studier av flåtten og smitterisiko med borrelia og TBE. Fulltekst i vitenarkiv Vis sammendrag

  Også vist nasjonalt i "NRK Norge i Dag". Studier av flåtten og smitterisiko med borrelia og TBE

• Slettan, Audun (2009). Om flått og dens smitterisiko av borrelia. Fulltekst i vitenarkiv
• Slettan, Audun (2009). Flått og flåttbårne sykdommer. Fulltekst i vitenarkiv
• Slettan, Audun (2008). Flåttforskning og sykdommer -. Fulltekst i vitenarkiv Vis sammendrag

  Intervju med NRK Sørlandssendingen ang. utbredelse av flått på sørlandet samt faren for smitte av diverse flåttbårne sykdommer. TV-team var til stede, og intervjuet ble i tillegg til radioreportasje vist både på NRK Sørlandssendingen samt riksdekkende TV "Norge i dag" samme dag. Usikker på dato.

• Lie, Øystein & Slettan, Audun (2004). "Gamle" gener gir ny giv. ?. s. 20–23. Fulltekst i vitenarkiv
• Haraldstad, Tormod; Neset, Philip Thomassen; Johansen, Kurt; Slettan, Audun & Sodeland, Marte (2021). Naturlig reetablering av laks i kystvassdrag mellom Otra og Mandalselva dokumentert ved elektrofiske og analyse av miljøDNA. Norsk institutt for vannforskning (NIVA). ISSN 9788257774073. Fulltekst i vitenarkiv Vis sammendrag

  I denne studien har vi dokumentert at laksen er tilbake i mange av kystvassdragene i Agder, og med dagens lave bestandssituasjon er slike reetableringer viktige. Bestandene i kystvassdragene er likevel sårbare, med få individer og små bekkesystemer. Mindre påvirkninger i nedbørfeltet og innblanding av rømt oppdrettslaks kan ha store konsekvenser for bestandene. Forsuringssituasjonen er generelt bedre i regionen og er antagelig bakgrunnen for at laksen igjen etablerer seg gjennom innvandring av laks fra de kalkede naboelvene. Vannkjemien er likevel begrensende for laksen i flere vassdrag i dag. Vi anbefaler at flere kystvassdrag kartlegges slik at vi får en oversikt over andelen laks i disse og hva som er styrende for forholdet mellom ungfisk av laks og aure i mindre vannsystemer. MiljøDNA kan være en viktig metode i en tidlig og bred screening, men tetthetsestimater og forholdet mellom artene bør foretas basert på tradisjonelt elektrofiske. Vi anbefaler at vannkjemien overvåkes i vassdrag med høyt innslag av laks, og at dosererkalking fra mindre anlegg bør vurderes.

Se alle arbeider i NVA