Blar i Vitenskapelige artikler på forfatter "Hagen, Snorre"
-
Antimicrobial resistance—Do we share more than companionship with our dogs?
Røken, Mari; Forfang, Kristin; Wasteson, Yngvild; Haaland, Anita Haug; Eiken, Hans Geir; Hagen, Snorre; Bjelland, Ane Mohn (Peer reviewed; Journal article, 2022-05-21)Aims To investigate and compare antimicrobial resistance genes (ARGs) in faeces from cohabiting dogs and owners. Methods and Results DNA from faecal samples from 35 dogs and 35 owners was screened for the presence of 34 ... -
Comparison of grizzly bear hair-snag and scat sampling along roads to inform wildlife population monitoring
Phoebus, Isobel; Boulanger, John; Eiken, Hans Geir; Fløystad, Ida; Graham, Karen; Hagen, Snorre; Sorensen, Anja; Stenhouse, Gordon (Peer reviewed; Journal article, 2020-09-16)Wildlife managers conduct population inventories to monitor species, particularly those at-risk. Although costly and time consuming, grid-based DNA hair-snag sampling has been the standard protocol for grizzly bear inventories ... -
A curated DNA barcode reference library for parasitoids of northern European cyclically outbreaking geometrid moths
Nyman, Tommi; Wutke, Saskia; Koivisto, Elina; Klemola, Tero; Shaw, Mark R.; Andersson, Tommi; Haraldseide, Håkon; Hagen, Snorre; Nakadai, Ryosuke; Ruohomäki, Kai (Peer reviewed; Journal article, 2022-11-18)Large areas of forests are annually damaged or destroyed by outbreaking insect pests. Understanding the factors that trigger and terminate such population eruptions has become crucially important, as plants, plant-feeding ... -
Genetic analysis indicates spatial-dependent patterns of sex-biased dispersal in Eurasian lynx in Finland
Herrero, Annika; Klutsch, Cornelya; Holmala, Katja; Maduna, Simo; Kopatz, Alexander; Eiken, Hans Geir; Hagen, Snorre (Peer reviewed; Journal article, 2021-02-19)Conservation and management of large carnivores requires knowledge of female and male dispersal. Such information is crucial to evaluate the population’s status and thus management actions. This knowledge is challenging ... -
Genetic changes caused by restocking and hydroelectric dams in demographically bottlenecked brown trout in a transnational subarctic riverine system
Klutsch, Cornelya; Maduna, Simo; Polikarpova, Natalia; Forfang, Kristin; Aspholm, Paul Eric; Nyman, Tommi; Eiken, Hans Geir; Amundsen, Per-Arne; Hagen, Snorre (Journal article; Peer reviewed, 2019-04-29)Habitat discontinuity, anthropogenic disturbance, and overharvesting have led to population fragmentation and decline worldwide. Preservation of remaining natural genetic diversity is crucial to avoid continued genetic ... -
Genetic evidence of female kin clusters in a continuous population of a solitary carnivore, the Eurasian lynx
Holmala, Katja; Herrero, Annika; Kopatz, Alexander; Schregel, Julia; Eiken, Hans Geir; Hagen, Snorre (Journal article; Peer reviewed, 2018)Large terrestrial carnivores can sometimes display strong family bonds affecting the spatial distribution of related individuals. We studied the spatial genetic relatedness and family structure of female Eurasian lynx, ... -
Genetic substructure and admixture as important factors in linkage disequilibrium-based estimation of effective number of breeders in recovering wildlife populations
Kopatz, Alexander; Eiken, Hans Geir; Schregel, Julia; Aspi, Jouni; Kojola, Ilpo; Hagen, Snorre (Journal article; Peer reviewed, 2017)The number of effective breeders (Nb) and effective population size (Ne) are population parameters reflective of evolutionary potential, susceptibility to stochasticity, and viability. We have estimated these parameters ... -
Genome- and transcriptome-derived microsatellite loci in lumpfish Cyclopterus lumpus: Molecular tools for aquaculture, conservation and fisheries management
Maduna, Simo; Vivian-Smith, Adam; Jónsdóttir, Ólöf Dóra Bartels; Imsland, Albert; Klutsch, Cornelya; Nyman, Tommi; Eiken, Hans Geir; Hagen, Snorre (Peer reviewed; Journal article, 2020-01-17)The lumpfish Cyclopterus lumpus is commercially exploited in numerous areas of its range in the North Atlantic Ocean, and is important in salmonid aquaculture as a biological agent for controlling sea lice. Despite the ... -
Genomic Signatures of Local Adaptation under High Gene Flow in Lumpfish—Implications for Broodstock Provenance Sourcing and Larval Production
Maduna, Simo; Jónsdóttir, Ólöf Dóra Bartels; Imsland, Albert; Gíslason, Davíð; Reynolds, Patrick; Kapari, Lauri Teemu; Hangstad, Thor Arne; Meier, Kristian; Hagen, Snorre (Peer reviewed; Journal article, 2023-09-26)Aquaculture of the lumpfish (Cyclopterus lumpus L.) has become a large, lucrative industry owing to the escalating demand for “cleaner fish” to minimise sea lice infestations in Atlantic salmon mariculture farms. We used ... -
Harvest is associated with the disruption of social and finescale genetic structure among matrilines of a solitary large carnivore
Frank, Shane; Pelletier, Fanie; Kopatz, Alexander; Bourret, Audrey; Garant, Dany; Swenson, Jon; Eiken, Hans Geir; Hagen, Snorre; Zedrosser, Andreas (Peer reviewed; Journal article, 2020-11-27)Harvest can disrupt wildlife populations by removing adults with naturally high survival. This can reshape sociospatial structure, genetic composition, fitness, and potentially affect evolution. Genetic tools can detect ... -
Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos)
Rivrud, Inger Maren; Frank, Shane; Bischof, Richard; Mysterud, Atle; Steyaert, Sam; Hertel, Anne Gabriela; Hagen, Snorre; Eiken, Hans Geir; Swenson, Jon; Zedrosser, Andreas (Journal article; Peer reviewed, 2019)Wild animal populations experience selection pressures from both natural and anthropogenic sources. The availability of extensive pedigrees is increasing along with our ability to quantify the heritability and evolvability ... -
High resistance to climatic variability in a dominant tundra shrub species
Gonzalez, Victoria; Moriana Armendariz, Mikel; Hagen, Snorre; Lindgård, Bente; Reiersen, Rigmor; Bråthen, Kari Anne (Journal article; Peer reviewed, 2019-06-05)Climate change is modifying temperature and precipitation regimes across all seasons in northern ecosystems. Summer temperatures are higher, growing seasons extend into spring and fall and snow cover conditions are more ... -
Lack of population genetic structure of lumpfish along the Norwegian coast: A reappraisal based on EST-STRs analyses
Jónsdóttir, Ólöf Dóra Bartels; Gíslason, Davíð; Ólafsdóttir, Guðbjörg; Maduna, Simo; Hagen, Snorre; Reynolds, Patrick; Sveinsson, Sæmundur; Imsland, Albert (Peer reviewed; Journal article, 2022-04-13)Lumpfish is now the single most important cleaner fish species to date and there is an extensive lumpfish translocation along the Norwegian coast. A reliable baseline information about the population genetic structure of ... -
Large-scale genetic admixture suggests high dispersal in an insect pest, the apple fruit moth
Elameen, Abdelhameed; Klutsch, Cornelya; Fløystad, Ida; Knudsen, Geir; Tasin, Marco; Hagen, Snorre; Eiken, Hans Geir (Peer reviewed; Journal article, 2020-08-12)Knowledge about population genetic structure and dispersal capabilities is important for the development of targeted management strategies for agricultural pest species. The apple fruit moth, Argyresthia conjugella ... -
Loss of species and genetic diversity during colonization: Insights from acanthocephalan parasites in northern European seals
Sromek, Ludmila; Ylinen, Eeva; Kunnasranta, Mervi; Maduna, Simo; Sinisalo, Tuula; Michell, Craig T.; Kovacs, Kit M.; Lydersen, Christian; Ieshko, Evgeny; Andrievskaya, Elena; Alexeev, Vyacheslav; Leidenberger, Sonja; Hagen, Snorre; Nyman, Tommi (Peer reviewed; Journal article, 2023-10-19)Studies on host–parasite systems that have experienced distributional shifts, range fragmentation, and population declines in the past can provide information regarding how parasite community richness and genetic diversity ... -
Mitogenomics of the suborder Cottoidei (Teleostei: Perciformes): Improved assemblies, mitogenome features, phylogeny, and ecological implications
Maduna, Simo; Vivian-Smith, Adam; Jónsdóttir, Ólöf Dóra Bartels; Imsland, Albert; Klutsch, Cornelya; Nyman, Tommi; Eiken, Hans Geir; Hagen, Snorre (Peer reviewed; Journal article, 2022-03-02)We determined the mitogenome of Cyclopterus lumpus using a hybrid sequencing approach, and another four closely related species in the Liparidae based on available next-generation sequence data. We found that the mitogenome ... -
Monitoring of the Apple Fruit Moth: Detection of Genetic Variation and Structure Applying a Novel Multiplex Set of 19 STR Markers
Elameen, Abdelhameed; Eiken, Hans Geir; Fløystad, Ida; Knudsen, Geir; Hagen, Snorre (Journal article; Peer reviewed, 2018-04-08)The apple fruit moth Argyresthia conjugella (Lepidoptera, Yponomeutidae) is a seed predator of rowan (Sorbus aucuparia) and is distributed in Europe and Asia. In Fennoscandia (Finland, Norway and Sweden), rowan fruit ... -
Niche construction mediates climate effects on recovery of tundra heathlands after extreme event
Gonzalez, Victoria; Lindgård, Bente; Reiersen, Rigmor; Hagen, Snorre; Bråthen, Kari Anne (Peer reviewed; Journal article, 2021-02-04)Climate change is expected to increase the frequency and intensity of extreme events in northern ecosystems. The outcome of these events across the landscape, might be mediated by species effects, such as niche construction, ... -
Novel insight into lepidopteran phylogenetics from the mitochondrial genome of the apple fruit moth of the family Argyresthiidae
Elameen, Abdelhameed; Maduna, Simo; Magerøy, Melissa; van Eerde, André; Knudsen, Geir; Hagen, Snorre; Eiken, Hans Geir (Peer reviewed; Journal article, 2024-01-02)Background The order Lepidoptera has an abundance of species, including both agriculturally beneficial and detrimental insects. Molecular data has been used to investigate the phylogenetic relationships of major subdivisions ... -
Range-wide whole-genome resequencing of the brown bear reveals drivers of intraspecies divergence
de Jong, Menno; Niamir, Aidin; Wolf, Magnus; Kitchener, Andrew C.; Lecomte, Nicolas; Seryodkin, Ivan V.; Fain, Steven R.; Hagen, Snorre; Saarma, Urmas; Janke, Axel (Peer reviewed; Journal article, 2023-02-06)Population-genomic studies can shed new light on the effect of past demographic processes on contemporary population structure. We reassessed phylogeographical patterns of a classic model species of postglacial recolonisation, ...