Sökning: "Ficedula"
Visar resultat 1 - 5 av 11 uppsatser innehållade ordet Ficedula.
1. Neophobia and parental care in collared flycatchers (Ficedula albicollis)
Kandidat-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : Parental care can be important especially in passerine birds and can depend on environment, food availability and behaviour. A behaviour that can affect the food supply for the offspring is neophobia, the fear of novel objects. The more fear the bird exhibits the less it visits the nest with food. LÄS MER
2. The relative effect of gained extra-pair paternity versus ensured within-pair paternity on male fitness in collared flycatchers, Ficedula albicollis
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : Variation in a male ability to gain extra-pair paternity and maintain within-pair paternity are important sources of variation in male fitness in socially monogamous species and thus become the resource of sexual selection on male secondary sexual traits. While the maximum possible number of offspring sired within the social pair-bond is limited by the female’s clutch size, the possible number of sired extra-pair young could in theory by much higher. LÄS MER
3. Avian Malaria infection and its effect on cellular metabolic rate in Ficedula Flycatchers
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Institutionen för cell- och molekylärbiologiSammanfattning : Chronic avian malaria and low-intensity parasite infections can have a negative influence on reproduction and survival which can reduce the fitness of the host. Therefore, the effect on host due to avian malaria infection can affect a bird’s lifespan. Consequently, avian parasites can influence evolution, physiology, and host morphology. LÄS MER
4. Flygmekanik i sidledsmanöver hos Svartvit flugsnappare (Ficedula hypoleuca)
Kandidat-uppsats, Lunds universitet/Examensarbeten i biologiSammanfattning : There is not much research done regarding maneouvering flight on Birds. What has been done surrounding the area usually involves steady flight and not maneuvering. For the most part studies concern bats, insects or hummingbirds. LÄS MER
5. Characterization of the Recombination Landscape in Red-Breasted and Taiga Flycatchers
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/EvolutionsbiologiSammanfattning : Between closely related species there are genomic regions with a higher level of differentiation compared to the rest of the genome. For a time it was believed that these regions harbored loci important for speciation but it has now been shown that these patterns can arise from other mechanisms, like recombination. LÄS MER
