Sökning: "Lepidoptera"
Visar resultat 11 - 15 av 28 uppsatser innehållade ordet Lepidoptera.
11. Nocturnal moths use of novel habitats : a case study on a power line in a forest-mire mosaic in boreal Sweden
Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental StudiesSammanfattning : Biodiversity and pollinators are declining all over the world, and a factor thought to cause this decline is destruction of natural habitats. One new way that has been discussed in an effort to try to mitigate the effects of declining habitats is to understand and use novel habitats, which are habitats created when, for example, building roads, railways, and power lines. LÄS MER
12. Mobility, habitat selection and population connectivity of Lycaena helle in central Sweden : implications for conservation
Master-uppsats, SLU/Dept. of EcologySammanfattning : Lycaena helle is an endangered butterfly that is mainly threatened by habitat degradation and fragmentation. For all species with a fragmented distribution, knowledge about mobility, habitat requirements and connectivity is key to developing successful conservation strategies. LÄS MER
13. Transgenerational phenotypic plasticity: can parental host plant experience affect the phenotype of the offspring? : a study in behavior and physiology in Spodoptera littoralis
Kandidat-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)Sammanfattning : The Darwinian theory of natural selection first popularized by Charles Darwin in the mid-19th century has been widely accepted as one of the key mechanisms of evolution. However, before Darwin other scientists such as Jean-Baptiste de Lamarck had their theories about evolution. LÄS MER
14. Butterfly monitoring in Sweden reveals changes in occurrences over a five-year period
Kandidat-uppsats, Linköpings universitet/Biologi; Linköpings universitet/Tekniska fakultetenSammanfattning : Many of the European butterfly species have declined rapidly over the past decades. The cause is thought to be habitat loss due to factors such as increased tree cover, afforestation and intensified agriculture. LÄS MER
15. The importance of vegetation height and flower abundance for Swedish butterfly species in semi-natural grasslands
Kandidat-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi; Linköpings universitet/Tekniska högskolanSammanfattning : Changed management of semi-natural grasslands is thought to be one important factor for explaining the decline of butterfly populations in Sweden and the rest of Europe. This study explores how vegetation height, variation in vegetation height and flower abundance can help predict the occurrence of butterfly species in semi-natural grasslands in southern Sweden. LÄS MER