Essays about: "flycatchers"
Showing result 1 - 5 of 12 essays containing the word flycatchers.
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1. Neophobia and parental care in collared flycatchers (Ficedula albicollis)
University essay from Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : 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. READ MORE
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2. Flexible invaders: a study into aggressive behaviour in Öland's range expanding collared flycatchers
University essay from Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : Behavioural shifts, or changes in behaviour patterns, are an often-overlooked aspect of ecological invasions and range expansions, that can nevertheless be key in determining how and why a species may or may not succeed in their expansion process. We looked at aggressive behaviour in a small insectivore passerine species, the collared flycatcher, on the island of Öland, where it is undergoing a range expansion to the detriment of the native, ecologically similar, pied flycatcher. READ MORE
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3. The relative effect of gained extra-pair paternity versus ensured within-pair paternity on male fitness in collared flycatchers, Ficedula albicollis
University essay from Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : 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. READ MORE
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4. Avian Malaria infection and its effect on cellular metabolic rate in Ficedula Flycatchers
University essay from Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Institutionen för cell- och molekylärbiologiAbstract : 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. READ MORE
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5. Characterization of the Recombination Landscape in Red-Breasted and Taiga Flycatchers
University essay from Uppsala universitet/EvolutionsbiologiAbstract : 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. READ MORE
