Sökning: "Lepidoptera"
Visar resultat 6 - 10 av 28 uppsatser innehållade ordet Lepidoptera.
6. Population genetic analyses inform conservation of the endangered Clouded Apollo (Parnassius mnemosyne) butterfly in Sweden
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : The clouded apollo (Parnassius mnemosyne) is a palearctic butterfly with a wide distribution across Eurasia. In recent decades, however, the species has declined in many parts of its distribution range. LÄS MER
7. TIME FOR SHIFT CHANGE IN THE FABRIC OF EXISTENCE Exploring the role of darkness and artificial light for humans and biodiversity
Master-uppsats, Göteborgs universitet / Institutionen för ekonomi och samhälleSammanfattning : Den här uppsatsen tar avstamp i förlusten av biologisk mångfald, och då specifik förlusten av biologisk mångfald på grund av överflödigt artificiellt ljus under dygnets mörka timmar, även kallat ljusföroreningar. Den daglevande människan har utvidgat sina timmar från de naturligt ljusa till att inkludera dygnets alla timmar, vilket resulterat i minskat handlingsutrymme för den nattlevande flora och fauna. LÄS MER
8. Flower-visiting insects benefit from forest in the surrounding landscape
Kandidat-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologiSammanfattning : Habitat loss and fragmentation due to agricultural practices are causing worrying declines in insect diversity and biomass. Agricultural intensification, among other things, have led to a decline in semi-natural grasslands. Forest in the surrounding landscape can have a positive effect on species abundance in grasslands. LÄS MER
9. Impact of different light sources on the responses of moth
Magister-uppsats, Högskolan i HalmstadSammanfattning : In recent decades, the negative effects of artificial light at night on natural ecosystems have attracted the attention of ecologists. Studies have shown that artificial light at night leads to a considerable reduction in insects and has a worrying impact on terrestrial ecosystems, including nocturnal insects (e.g. Lepidoptera) such as moths. LÄS MER
10. Bumblebee resource dynamics : a review of foraging and nesting in the agricultural landscape
Kandidat-uppsats, SLU/Dept. of EcologySammanfattning : 90 % of all plants on earth either benefits or entirely depends on pollination. There are pollinators among families of bees (Apidea), butterflies (Lepidoptera) and birds (Aves). Bees of genus Bombus spp., bumblebees, are especially important and provide pollination service for 80 % of the crops of Europe and many wild plant species. LÄS MER