Browsing NTNU Open by Author "Landa, Arild"
Now showing items 1-9 of 9
-
A battle of the mountains: Intraguild competition between arctic fox Vulpes lagopus and red fox Vulpes vulpes
Grevskott, Ragnhild Thorseth (Master thesis, 2019)Fjellreven (Vulpes lagopus) er en truet art i Fennoskandia. Konkurranse med rødreven (Vulpes vulpes) er regnet som en av hovedtruslene for fjellrevens utbredelse. Flere bevaringstiltak har blitt satt i gang for å redde ... -
A tale of stress, reproduction, survival and climate change - Case study of the Norwegian Arctic fox (Vulpes lagopus) and measurement of glucocorticoids
Johansen, Anneli S. (Master thesis, 2020)Klimaendringer setter arktik tundra under press; klimasensitive arter som gnagere kan få syklusen sin forstyrret som et resultat. Gnagere er for de fleste arktiske kjøttetere og omnivore en viktig del av deres diet. Når ... -
Drivers of change in meso-carnivore distributions in a northern ecosystem
Rød-Eriksen, Lars (Doctoral theses at NTNU;2020:182, Doctoral thesis, 2020)Species have been subject to major perturbations in recent times, such as over-harvest, habitat loss and climate change, affecting their distribution and abundance. Alpine and arctic tundra ecosystems are particularly ... -
Fälthandbok - Fjällrev. En vägledning vid innventering av fjällrevsbeståndet, tålkning av spår och spårtecken, samt skillnader mellan fjällrev, rödrev och förrymda farmrävar
Eide, Nina Elisabeth; Andersen, Reidar; Elmhagen, Bodil; Linnell, John Durrus; Sandal, T.; Dalén, L; Angerbjörn, A.; Hellström, P.; Landa, Arild (NINA temahefte;, Research report, 2005) -
Fitness and fur colouration: Testing the camouflage and thermoregulation hypotheses in an Arctic mammal
Di Bernardi, Cecilia; Thierry, Anne-Mathilde; Eide, Nina Elisabeth; Bowler, Diana Elizabeth; Rød-Eriksen, Lars; Blumentrath, Stefan; Tietgen, Lukas; Sandercock, Brett; Flagstad, Øystein; Landa, Arild (Peer reviewed; Journal article, 2021)1. Selection for crypsis has been recognized as an important ecological driver of animal colouration, whereas the relative importance of thermoregulation is more contentious with mixed empirical support. A potential thermal ... -
Fur colour in the arctic fox – Genetic architecture and consequences for fitness
Tietgen, Lukas (Master thesis, 2020)‘Genome-wide association studies’ (GWAS) er nyttige verktøy, men er likevel ikke veldig mye brukt til å studere ville populasjoner. Tidligere studier har ofte ikke klart å identifisere gener som ligger til grunn for adaptive ... -
Fur colour in the Arctic fox: genetic architecture and consequences for fitness
Tietgen, Lukas; Hagen, Ingerid Julie; Kleven, Oddmund; Di Bernardi, Cecilia; Kvalnes, Thomas; Norén, Karin; Hasselgren, Malin; Wallen, Johan Fredrik; Angerbjörn, Anders; Landa, Arild; Eide, Nina Elisabeth; Flagstad, Øystein; Jensen, Henrik (Journal article; Peer reviewed, 2021)Genome-wide association studies provide good opportunities for studying the genetic basis of adaptive traits in wild populations. Yet, previous studies often failed to identify major effect genes. In this study, we used ... -
Genomic Consequences of Fragmentation in the Endangered Fennoscandian Arctic Fox (Vulpes lagopus)
Cockerill, Christopher A.; Hasselgren, Malin; Dussex, Nicolas; Dalén, Love; von Seth, Johanna; Angerbjörn, Anders; Wallén, Johan F.; Landa, Arild; Eide, Nina Elisabeth; Flagstad, Øystein; Ehrich, Dorothee; Sokolov, Aleksandr; Sokolova, Natalya; Norén, Karin (Peer reviewed; Journal article, 2022)Accelerating climate change is causing severe habitat fragmentation in the Arctic, threatening the persistence of many cold-adapted species. The Scandinavian arctic fox (V. lagopus) is highly fragmented, with a once ... -
Predator co-occurrence in alpine and Arctic tundra in relation to fluctuating prey
Rød-Eriksen, Lars; Killengreen, Siw Turid; Ehrich, Dorothee; Ims, Rolf Anker; Herfindal, Ivar; Landa, Arild; Eide, Nina Elisabeth (Peer reviewed; Journal article, 2022)1. Large carnivores influence ecosystem dynamics in multiple ways, for example, by suppressing meso-carnivores and providing carrions for smaller scavengers. Loss of large carnivores is suggested to cause meso-carnivore ...