Blar i USN Open Archive på forfatter "Sønstebø, Jørn Henrik"
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Contrasting demographic histories revealed in two invasive populations of the dry rot fungus Serpula lacrymans
Skrede, Inger; Murat, Claude; Hess, Jaqueline; Maurice, Sundy Ursula Mary Jane; Sønstebø, Jørn Henrik; Kohler, Annegret; Barry-Etienne, Dominique; Eastwood, Daniel C.; Högberg, Nils; Martin, Francis; Kauserud, Håvard (Journal article; Peer reviewed, 2021)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, ... -
Detection of cyanobacteria in Lake Akersvannet (Southern Norway) using metabarcoding and light microscopy
Eriksen, Elisabeth Nordvik (Master thesis, 2022)Cyanobacteria can be found in freshwater and drinking water systems almost all over the world and with climate change and increasing temperature and precipitation, cyanobacterial growth and blooms are favoured. One important ... -
Effects of fertilizer and glyphosate on soil microbial diversity and pathogens in two soil types in Telemark
Durugkar, Neha Kiran (Master thesis, 2021)The occurrence of microorganisms in the soil depends on numerous physical and chemical factors. Microorganisms play a central role in the environment and plant growth. New molecular techniques are currently being used for ... -
Environmental DNA analyses for detecting the Eurasian beaver (Castor fiber) and assessing biodiversity: a metabarcoding and qPCR study
Bouhouche, Meriem (Master thesis, 2023)Environmental DNA (eDNA) is a relatively new method that has emerged as a promising tool for detecting biodiversity. In this study, I tested the efficacy of using eDNA extracted from water samples of two rivers in Norway, ... -
Fungal succession in a cultured Norway spruce (Picea abies) forest
Ropiak, Paulina Anna (Master thesis, 2023)Et av de mest sentrale temaene innen økologi er forholdet mellom biologisk mangfold og økosystem. Mange vedboende sopp er nedbrytere, med en viktig rolle i sirkulasjonen av materie og skaping av leveområder for andre ... -
Method testing: Collecting and analyzing eDNA from a large lake - With bacteria and the endoparasite Tetracapsuloides bryosalmonae as example organisms
Aune, Tora Camilla Eng (Master thesis, 2022)As techniques and protocols for eDNA studies develop, ideas for research are pouring in. The need for standardized methods and protocols for different environments is increasing and it´s necessary to ensure reliable data ... -
Next-generation sequencing of soil samples. Illumina MiSeq vs. Oxford Nanopore MinION
Hellekås, Jorunn (Master thesis, 2021)Most of the world’s soil resources are of poor condition and with an expanding population it is important to improve soil management. Activities of microorganisms living in soil are essential for soil and plant health, and ... -
The Effects of Human Influence on the Polypore Communities of Four Separate Spruce Forests in Telemark, Norway
Lien, Erlend Småkasin (Master thesis, 2023)Polypores are wood-decaying fungi which are important for forest ecosystems in the nutrient cycling of dead wood and microhabitat creation. Continuity and quality in deadwood have been found to be important aspects for ... -
Using metabarcoding to study the differences in polypore communities, six years after inoculation
Hagen, Sofie (Master thesis, 2023)The forests of Fennoscandia are essential habitats for polypores and wood-decaying fungi, but many rare polypores are experiencing declines due to habitat loss and fragmentation. DNA methods are enhancing our understanding ... -
What’s in the pot? Identifying contaminant species in the ornamental plant trade with eDNA metabarcoding
Farsund, Peter Groth (Master thesis, 2022)Monitoring alien species introduction pathways is a central strategy in early detection of alien species. eDNA metabarcoding is a potentially valuable method for detecting alien species and describing source populations ...