Search for dissertations about: "parasites and birds"

Showing result 1 - 5 of 17 swedish dissertations containing the words parasites and birds.

  2. 1. Causes and consequences of blood parasite infections in birds

    Author : Martin Stjernman; Biodiversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Animal physiology; Djurfysiologi; Parasitologi människa och djur ; Parasitology human and animal ; maternal transfer; stabilising selection; parasite resistance; parasites; trade-off; cost of reproduction; Ficedula hypoleuca; pied flycatcher; Haemoproteus; blue tit; Parus caeruleus;

    Abstract : Parasites are ubiquitous and can cause significant fitness reductions to their hosts. Therefore, selection for the evolution of host resistance should be strong. However, resistance may be costly and should be traded-off against other fitness related traits. READ MORE

  4. 2. Parasites, reproductive success and health status in birds

    Author : Reija Dufva; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Tättingar; Passeriformes; Reproduktion; Tvåvingar; Diptera; Loppor; Siphonaptera; Synekologi;

    Abstract : .... READ MORE

  5. 3. Avian Malaria and Related Blood Parasites: Molecular Diversity, Ecology and Evolution

    Author : Olof Hellgren; MEMEG; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; diversity; Plasmodium; bird-migration; transmission; blackfly; host-specificity; host-preference; cytochrome b; DHFR-TS; recombination; phylogeny; Ecology; Ekologi; Genetics; cytogenetics; Genetik; cytogenetik; Parasitology human and animal ; Haemoproteus; Leucocytozoon; Parasitologi människa och djur ; Animal ecology; Djurekologi; Natural science; Naturvetenskap;

    Abstract : Malaria-like parasites consist of a large group of species that infects primates, rodents, bats, lizard and birds. I have focused on parasites from the genera Haemoproteus, Plasmodium and Leucocytozoon that are infecting birds. READ MORE

  6. 4. Causes and consequences of life-history variation : The effects of parasites, glucocorticoids, and environmental conditions in the collared flycatcher (Ficedula albicollis)

    Author : Kevin Fletcher; Lars Gustafsson; Anders Pape Moller; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Collard flycatcher; Haemosporidian blood parasite; glucocorticoid; life history;

    Abstract : Life-history is the study of all the different stages of life that affect reproductive success and survival between the birth and death of an organism. The reproductive output of an organism is constrained by many things including time, resource, disease agents and environmental conditions. READ MORE

  7. 5. On the Effects of Blood Parasites in Wild Birds

    Author : Peter Halvarsson; Jacob Höglund; Staffan Bensch; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Atoxoplasma; avian malaria; coccidia; Gallinago media; Haemoproteus; Leucocytozoon; parasite prevalence; Passer montanus; Plasmodium; recapture mod-els; survival; Biologi med inriktning mot populationsbiologi; Biology with specialization in Population Biology;

    Abstract : Coccidian and haemoatozoan parasites are commonly occurring endo-parasites in wild birds and prevalence can vary among species and populations. In addition to prevalence studies, parasites are often used to investigate effects on life history traits. READ MORE