Blar i Master’s theses (MINA) på forfatter "Eldegard, Katrine"
-
Bats, insects and weather : spatial-temporal trends on a boreal forest wind facility in Norway
Johns, Sarah Elizabeth (Master thesis, 2021)Bats and insects are valuable indicators of ecosystem health. As both organisms are potential bioindicators, it is important to understand how they interact with each other and their environment. Bats and insects are facing ... -
Diversity of wild bees in semi-natural grasslands in southeast Norway is related to temperature and amount of edge habitat in the surrounding landscape
Rastad, Ida Elise Løvall (Master thesis, 2021)The declines in diversity and abundance of wild bees are mainly attributed to the intensification of agricultural practices and the resulting loss of semi-natural grassland habitats. Furthermore, the effect of climate ... -
Drivers and consequences of partial migration in an alpine bird species
Arnekleiv, Øyvind Lorvik (Master thesis, 2020)1. Partial migration, where parts of a population migrate between winter and summer (breeding) areas and the rest remain year-round resident, is a common phenomenon across several bird species. However, both drivers and ... -
Estimating and analysing the occupancy of the introduced shrew Crocidura russula in Norway
Talleraas, Simen Moflag (Master thesis, 2021)The Greater white-toothed shrew (Crocidura russula) is a shrew that was discovered in Norway in 2017. The species is of concern because it is invasive and has a history of environmental impact. It is native around the ... -
Habitat and foraging ecology of two cryptic bat species 59° North : Myotis mystacinus and M. brandtii
McKay, April Irene Riderbo (Master thesis, 2020)The Brandts’ bat (Myotis brandtii) and the whiskered bat (Myotis mystacinus) are cryptic species from distinct taxonomic clades whose ranges frequently overlap. What, if any, resource partitioning that exists between them ... -
Hide and seek : a pilot study on day roosts in autumn and hibernacula for Vesper bats in southeast Norway
Kristiansen, Kristian Flagstad (Master thesis, 2018)1. Bats constitute >20% of all terrestrial mammal species in Norway (12 resident species, 7 on the national Red list). Yet, the knowledge of their distribution, population trends and potential threats in Norway is very ... -
How to efficiently survey floral resource availability and diversity for pollinating insects in semi-natural grasslands
Helle, Anders Gunnar (Master thesis, 2021)Floral resources are the foundation for insect pollinators, on which we in turn rely on for food and ecosystem functioning. Global and regional trends show that insect pollinators become increasingly endangered with ... -
Hvordan ivaretas hensynet til naturmangfold i bit-for-bit nedbyggingen av strandsonen : et casestudie av hvordan miljøprinsippene i naturmangfoldloven (§§ 8–10), begrunnes i dispensasjonsvedtak i strandsonen i Mandal kommune
Madsen, Rebecca Forbergskog (Master thesis, 2021)Arealendring er den viktigste årsaken til at arter er på rødlisten. I dag er ni av ti arter truet på grunn av arealendringer. Sjøfugl har størst nedgang blant arter i marine økosystemer. Det har siden 1965 vært byggeforbud ... -
Monitoring bat-insect relationships in boreal forest habitats
Sætre, Vilde (Master thesis, 2022)Insect populations have over the last decades experienced global declines caused by anthropogenic disturbances, e.g., land-use changes, habitat loss, deforestation, and agricultural intensification. Consequently, insectivore ... -
Neighboring colonies of Brandt’s bat Myotis brandtii and Whiskered bat M. mystacinus changed their roost activity throughout the breeding season
Birkeland, Karoline Manneråk (Master thesis, 2019)Little is known about bats in Norway, although they constitute > 20 % of our terrestrial mammal species; 13 bats species are registered, but it is not known if all of these reproduce in the country. Many European bat ... -
Nitrogen deposition linked to changes in flowering plant and wild bee diversity
Torvanger, Marianne Strand (Master thesis, 2022)Nitrogen (N) deposition from anthropogenic activities is a major threat to plant biodiversity, but few studies have investigated effects of N deposition on higher trophic levels, such as on flower-visiting insects. N ... -
The role of past landscape structure and present management in semi-natural grasslands for wild bee species richness and abundance
Olsen, Mikaela Embla Grøndal Persdotter (Master thesis, 2020)1. During the last century the area of semi-natural grasslands has been dramatically reduced in all European countries, including Norway. Semi-natural grasslands provide habitats for wild pollinators such as wild bees and ... -
The hunt for maternity colonies : a pilot study of using radio telemetry to track bats in southeast Norway
Siljedal, Gunnar Joakim (Master thesis, 2018)There is still a gap of knowledge regarding bats in Norway. More studies are needed to explore which habitats are important for the maternity colonies, and which methods are most suited to find them. This is especially ...